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AI Skills Index · September 2026

What AI Engineer job posts ask for

The tools named in 769 postings from 92 employers. Each percentage is the share of those employers that name the tool in at least one posting. Engineer titles with AI, ML, LLM, agent, inference or a similar qualifier, including AI platform engineers and members of technical staff on AI teams. Research, scientist, hardware and support titles are left out.

How this is counted · Download the chart · The AI Engineer career path

Signature tools

What sets this role apart: tools its postings name far more often than other AI job posts do.

Tools, ranked

Named products you can learn and put on a resume, counted when at least 2 employers name them. Open a row to see where postings put it, which employers name it, and example postings.

  1. 01
    PyTorchML training and servingSignature

    Mostly a requirement

    50%

    46 of 92 employers

    Named in 23% of the role's postings. Of 176 postings that name it, it is a requirement in 142, part of the work in 10 and a bonus in 23.

    Employers naming it: Waymo, Faculty, Reddit, Airbnb, Figure AI, Databricks, and 40 more.

  2. 02
    TensorFlowML training and servingSignature

    Mostly a requirement

    34%

    31 of 92 employers

    Named in 14% of the role's postings. Of 110 postings that name it, it is a requirement in 91, part of the work in 5 and a bonus in 13.

    Employers naming it: Waymo, Faculty, Reddit, Airbnb, DoorDash, Instacart, and 25 more.

  3. 03
    Apache SparkData and retrieval

    Mostly a requirement

    25%

    23 of 92 employers

    Named in 7% of the role's postings. Of 55 postings that name it, it is a requirement in 32, part of the work in 6 and a bonus in 15.

    Employers naming it: Reddit, Pinterest, Airwallex, CoreWeave, Affirm, Instacart, and 17 more.

  4. 04
    PostgreSQLData and retrieval

    25%

    23 of 92 employers

    Named in 6% of the role's postings. Of 47 postings that name it, it is a requirement in 19, part of the work in 22 and a bonus in 6.

    Employers naming it: Fivetran, GitLab, LangChain, Mercor, Cloudflare, CoreWeave, and 17 more.

  5. 05
    LangChainAgent frameworks and SDKs

    Mostly a requirement

    25%

    23 of 92 employers

    Named in 6% of the role's postings. Of 44 postings that name it, it is a requirement in 25, part of the work in 10 and a bonus in 7.

    Employers naming it: Elastic, Okta, Observe.AI, Airwallex, GitLab, Lyft, and 17 more.

  6. 06
    vLLMML training and serving

    Often a bonus

    23%

    21 of 92 employers

    Named in 5% of the role's postings. Of 39 postings that name it, it is a requirement in 15, part of the work in 8 and a bonus in 16.

    Employers naming it: Fireworks AI, CoreWeave, Together AI, Cerebras, Baseten, Cohere, and 15 more.

  7. 07
    CUDAML training and servingSignature

    Often a bonus

    22%

    20 of 92 employers

    Named in 7% of the role's postings. Of 50 postings that name it, it is a requirement in 18, part of the work in 9 and a bonus in 22.

    Employers naming it: Together AI, CoreWeave, Perplexity, Figure AI, xAI, Cerebras, and 14 more.

  8. 08
    Claude CodeCoding agentsNew wave

    Mostly a requirement

    22%

    20 of 92 employers

    Named in 6% of the role's postings. Of 43 postings that name it, it is a requirement in 25, part of the work in 16 and a bonus in 2.

    Employers naming it: DoorDash, Elastic, Baseten, Affirm, Mercor, GitLab, and 14 more.

  9. 09
    CursorCoding agentsNew wave

    Mostly a requirement

    21%

    19 of 92 employers

    Named in 6% of the role's postings. Of 48 postings that name it, it is a requirement in 33, part of the work in 9 and a bonus in 6.

    Employers naming it: Pinterest, DoorDash, Writer, Affirm, Baseten, Mercor, and 13 more.

  10. 10
    Claude models (Anthropic API)Model APIs and platforms

    21%

    19 of 92 employers

    Named in 6% of the role's postings. Of 46 postings that name it, it is a requirement in 20, part of the work in 18 and a bonus in 6.

    Employers naming it: Fivetran, Okta, Observe.AI, Airwallex, Databricks, Affirm, and 13 more.

  11. 11
    OpenAI API and GPT modelsModel APIs and platforms

    Mostly a requirement

    20%

    18 of 92 employers

    Named in 5% of the role's postings. Of 35 postings that name it, it is a requirement in 21, part of the work in 9 and a bonus in 5.

    Employers naming it: Observe.AI, Okta, Airwallex, Scale AI, Affirm, Cerebras, and 12 more.

  12. 12
    TritonML training and serving

    Often a bonus

    18%

    17 of 92 employers

    Named in 3% of the role's postings. Of 24 postings that name it, it is a requirement in 8, part of the work in 2 and a bonus in 13.

    Employers naming it: CoreWeave, Cerebras, Perplexity, Together AI, Abridge, Airwallex, and 11 more.

  13. 13
    RayML training and serving

    17%

    16 of 92 employers

    Named in 6% of the role's postings. Of 43 postings that name it, it is a requirement in 20, part of the work in 6 and a bonus in 16.

    Employers naming it: Reddit, CoreWeave, Affirm, Samsara, Spotify, Cohere, and 10 more.

  14. 14
    Apache AirflowData and retrieval

    Mostly a requirement

    17%

    16 of 92 employers

    Named in 5% of the role's postings. Of 37 postings that name it, it is a requirement in 24, part of the work in 3 and a bonus in 10.

    Employers naming it: Reddit, Affirm, Airbnb, Mercor, Okta, Snowflake, and 10 more.

  15. 15
    LangGraphAgent frameworks and SDKs

    Mostly a requirement

    17%

    16 of 92 employers

    Named in 4% of the role's postings. Of 34 postings that name it, it is a requirement in 19, part of the work in 3 and a bonus in 10.

    Employers naming it: Elastic, Okta, Coinbase, Airwallex, GitLab, Lyft, and 10 more.

  16. 16
    TensorRTML training and serving

    Often a bonus

    17%

    16 of 92 employers

    Named in 4% of the role's postings. Of 29 postings that name it, it is a requirement in 10, part of the work in 3 and a bonus in 16.

    Employers naming it: Fireworks AI, CoreWeave, Cerebras, Together AI, Baseten, Deepgram, and 10 more.

  17. 17
    JAXML training and serving

    Mostly a requirement

    15%

    14 of 92 employers

    Named in 5% of the role's postings. Of 42 postings that name it, it is a requirement in 33, part of the work in 4 and a bonus in 5.

    Employers naming it: Waymo, Cohere, Airwallex, Figure AI, Instacart, Perplexity, and 8 more.

  18. 18
    Apache KafkaData and retrieval

    Mostly a requirement

    15%

    14 of 92 employers

    Named in 5% of the role's postings. Of 36 postings that name it, it is a requirement in 21, part of the work in 5 and a bonus in 10.

    Employers naming it: Together AI, Airwallex, Reddit, Airbnb, CoreWeave, Instacart, and 8 more.

  19. 19
    OpenAI CodexCoding agentsNew wave

    Mostly a requirement

    14%

    13 of 92 employers

    Named in 5% of the role's postings. Of 35 postings that name it, it is a requirement in 18, part of the work in 11 and a bonus in 6.

    Employers naming it: Pinterest, DoorDash, Baseten, Databricks, GitLab, CoreWeave, and 7 more.

  20. 20
    SGLangML training and serving

    14%

    13 of 92 employers

    Named in 3% of the role's postings. Of 24 postings that name it, it is a requirement in 10, part of the work in 5 and a bonus in 9.

    Employers naming it: Fireworks AI, Cerebras, Together AI, Crusoe, xAI, Airwallex, and 7 more.

Show 83 more tools
  1. 21
    LlamaIndexAgent frameworks and SDKs

    Mostly a requirement

    13%

    12 of 92 employers

    Named in 3% of the role's postings. Of 22 postings that name it, it is a requirement in 12, part of the work in 4 and a bonus in 4.

    Employers naming it: Observe.AI, Airwallex, Okta, MongoDB, Scale AI, Snowflake, and 6 more.

  2. 22
    BigQueryData and retrieval

    Mostly a requirement

    12%

    11 of 92 employers

    Named in 4% of the role's postings. Of 29 postings that name it, it is a requirement in 16, part of the work in 4 and a bonus in 9.

    Employers naming it: Reddit, Fivetran, Airwallex, Samsara, Spotify, Baseten, and 5 more.

  3. 23
    SalesforceSales and GTM stack

    Mostly a requirement

    12%

    11 of 92 employers

    Named in 2% of the role's postings. Of 16 postings that name it, it is a requirement in 10, part of the work in 3 and a bonus in 2.

    Employers naming it: Samsara, Elastic, GitLab, Anthropic, Baseten, Cloudflare, and 5 more.

  4. 24
    GitHub CopilotCoding agents

    Mostly a requirement

    11%

    10 of 92 employers

    Named in 3% of the role's postings. Of 24 postings that name it, it is a requirement in 19, part of the work in 1 and a bonus in 4.

    Employers naming it: Pinterest, Mercor, Affirm, Writer, CoreWeave, Elastic, and 4 more.

  5. 25
    Hugging FaceModel APIs and platforms

    Mostly a requirement

    11%

    10 of 92 employers

    Named in 2% of the role's postings. Of 13 postings that name it, it is a requirement in 9, part of the work in 2 and a bonus in 1.

    Employers naming it: Cresta, Reddit, Cerebras, Cohere, Databricks, Klaviyo, and 4 more.

  6. 26
    scikit-learnML training and serving

    Mostly a requirement

    10%

    9 of 92 employers

    Named in 2% of the role's postings. Of 19 postings that name it, it is a requirement in 17 and a bonus in 2.

    Employers naming it: Faculty, Instacart, Snowflake, Cloudflare, Databricks, Figma, and 3 more.

  7. 27
    DatabricksData and retrieval

    Mostly a requirement

    10%

    9 of 92 employers

    Named in 2% of the role's postings. Of 18 postings that name it, it is a requirement in 13, part of the work in 1 and a bonus in 4.

    Employers naming it: Fivetran, Airwallex, Samsara, Baseten, Lovable, Lyft, and 3 more.

  8. 28
    SnowflakeData and retrieval

    Mostly a requirement

    10%

    9 of 92 employers

    Named in 2% of the role's postings. Of 18 postings that name it, it is a requirement in 13, part of the work in 3 and a bonus in 1.

    Employers naming it: Fivetran, Mercor, Samsara, Clay, DoorDash, Instacart, and 3 more.

  9. 29
    OpenTelemetryEvals and observability

    10%

    9 of 92 employers

    Named in 2% of the role's postings. Of 12 postings that name it, it is a requirement in 5, part of the work in 3 and a bonus in 4.

    Employers naming it: CoreWeave, Anyscale, Arize AI, Cursor, DoorDash, Fireworks AI, and 3 more.

  10. 30
    SlurmML training and serving

    Part of the day-to-day work

    10%

    9 of 92 employers

    Named in 2% of the role's postings. Of 12 postings that name it, it is a requirement in 3, part of the work in 6 and a bonus in 3.

    Employers naming it: Together AI, Perplexity, Cohere, CoreWeave, Cursor, Deepgram, and 3 more.

  11. 31
    GrafanaEvals and observability

    Mostly a requirement

    9%

    8 of 92 employers

    Named in 3% of the role's postings. Of 24 postings that name it, it is a requirement in 16, part of the work in 2 and a bonus in 6.

    Employers naming it: Together AI, CoreWeave, Airwallex, Deepgram, Cerebras, Fireworks AI, and 2 more.

  12. 32
    PrometheusEvals and observability

    Mostly a requirement

    9%

    8 of 92 employers

    Named in 3% of the role's postings. Of 23 postings that name it, it is a requirement in 14 and a bonus in 9.

    Employers naming it: Together AI, CoreWeave, Airwallex, Arize AI, Deepgram, Fireworks AI, and 2 more.

  13. 33
    NCCLML training and serving

    Often a bonus

    9%

    8 of 92 employers

    Named in 3% of the role's postings. Of 22 postings that name it, it is a requirement in 7 and a bonus in 15.

    Employers naming it: Together AI, CoreWeave, Perplexity, Cohere, Databricks, Figure AI, and 2 more.

  14. 34
    dbtData and retrieval

    Part of the day-to-day work

    9%

    8 of 92 employers

    Named in 2% of the role's postings. Of 18 postings that name it, it is a requirement in 3, part of the work in 9 and a bonus in 5.

    Employers naming it: Fivetran, Snowflake, Airwallex, Clay, Databricks, Instacart, and 2 more.

  15. 35
    XGBoost / LightGBMML training and serving

    Mostly a requirement

    9%

    8 of 92 employers

    Named in 2% of the role's postings. Of 17 postings that name it, it is a requirement in 14 and a bonus in 3.

    Employers naming it: DoorDash, Affirm, Instacart, Reddit, Stripe, Figma, and 2 more.

  16. 36
    RedisData and retrieval

    9%

    8 of 92 employers

    Named in 2% of the role's postings. Of 16 postings that name it, it is a requirement in 7, part of the work in 3 and a bonus in 6.

    Employers naming it: LangChain, Reddit, Mercor, Cerebras, Clay, Figure AI, and 2 more.

  17. 37
    DeepSpeed / Megatron / FSDPML training and serving

    Mostly a requirement

    9%

    8 of 92 employers

    Named in 2% of the role's postings. Of 12 postings that name it, it is a requirement in 8, part of the work in 3 and a bonus in 1.

    Employers naming it: CoreWeave, Databricks, Spotify, Waymo, Cohere, Figure AI, and 2 more.

  18. 38
    ClickHouseData and retrieval

    Often a bonus

    9%

    8 of 92 employers

    Named in 1% of the role's postings. Of 11 postings that name it, it is a requirement in 2 and a bonus in 8.

    Employers naming it: CoreWeave, LangChain, Physical Intelligence, Airwallex, Clay, DoorDash, and 2 more.

  19. 39
    Amazon SageMakerML training and serving

    Often a bonus

    8%

    7 of 92 employers

    Named in 2% of the role's postings. Of 13 postings that name it, it is a requirement in 5 and a bonus in 8.

    Employers naming it: Fireworks AI, Databricks, Lyft, Plaid, Robinhood, Stripe, and 1 more.

  20. 40
    GitHubDeveloper platforms

    Mostly a requirement

    8%

    7 of 92 employers

    Named in 2% of the role's postings. Of 12 postings that name it, it is a requirement in 9, part of the work in 1 and a bonus in 2.

    Employers naming it: OpenAI, Affirm, Arize AI, Coinbase, n8n, Perplexity, and 1 more.

  21. 41
    n8nAutomation and internal tools

    Often a bonus

    8%

    7 of 92 employers

    Named in 2% of the role's postings. Of 12 postings that name it, it is a requirement in 3 and a bonus in 6.

    Employers naming it: Observe.AI, GitLab, MongoDB, Baseten, ElevenLabs, Lovable, and 1 more.

  22. 42
    ElasticsearchData and retrieval

    Often a bonus

    8%

    7 of 92 employers

    Named in 1% of the role's postings. Of 10 postings that name it, it is a requirement in 3, part of the work in 1 and a bonus in 6.

    Employers naming it: Airwallex, Instacart, Databricks, Figure AI, Mercor, Notion, and 1 more.

  23. 43
    DatadogEvals and observability

    Often a bonus

    8%

    7 of 92 employers

    Named in 1% of the role's postings. Of 9 postings that name it, it is a requirement in 2, part of the work in 1 and a bonus in 6.

    Employers naming it: Airwallex, Clay, Deepgram, Mercor, Okta, Scale AI, and 1 more.

  24. 44
    ML compilers (MLIR, XLA, TVM, LLVM)ML training and serving

    Mostly a requirement

    8%

    7 of 92 employers

    Named in 1% of the role's postings. Of 9 postings that name it, it is a requirement in 5, part of the work in 1 and a bonus in 3.

    Employers naming it: Waymo, Anthropic, Anyscale, Cerebras, Cohere, Databricks, and 1 more.

  25. 45
    Claude (app)AI work toolsNew wave

    Mostly a requirement

    8%

    7 of 92 employers

    Named in 1% of the role's postings. Of 8 postings that name it, it is a requirement in 5 and part of the work in 3.

    Employers naming it: Writer, CoreWeave, Databricks, Figma, Instacart, Lovable, and 1 more.

  26. 46
    Gemini modelsModel APIs and platforms

    Part of the day-to-day work

    7%

    6 of 92 employers

    Named in 3% of the role's postings. Of 20 postings that name it, it is a requirement in 4 and part of the work in 16.

    Employers naming it: Fivetran, Observe.AI, Waymo, Databricks, Cerebras, CoreWeave.

  27. 47
    TemporalAutomation and internal tools

    Mostly a requirement

    7%

    6 of 92 employers

    Named in 2% of the role's postings. Of 15 postings that name it, it is a requirement in 8, part of the work in 4 and a bonus in 3.

    Employers naming it: CoreWeave, Mercor, Together AI, Cresta, Samsara, Synthesia.

  28. 48
    Amazon BedrockModel APIs and platforms

    Mostly a requirement

    7%

    6 of 92 employers

    Named in 2% of the role's postings. Of 14 postings that name it, it is a requirement in 7, part of the work in 2 and a bonus in 5.

    Employers naming it: Fireworks AI, Coinbase, Okta, Anthropic, Lyft, Stripe.

  29. 49
    pandasML training and serving

    Mostly a requirement

    7%

    6 of 92 employers

    Named in 2% of the role's postings. Of 12 postings that name it, it is a requirement in 10 and a bonus in 2.

    Employers naming it: Instacart, Snowflake, Anthropic, Ramp, Scale AI, Snorkel AI.

  30. 50
    ONNX RuntimeML training and serving

    Often a bonus

    7%

    6 of 92 employers

    Named in 1% of the role's postings. Of 9 postings that name it, it is a requirement in 4 and a bonus in 5.

    Employers naming it: Deepgram, Liquid AI, Baseten, Cloudflare, Figure AI, Waymo.

  31. 51
    MySQLData and retrieval

    Part of the day-to-day work

    7%

    6 of 92 employers

    Named in 1% of the role's postings. Of 7 postings that name it, it is a requirement in 3 and part of the work in 4.

    Employers naming it: Labelbox, Affirm, Figure AI, Fivetran, Mercor, Notion.

  32. 52
    CrewAIAgent frameworks and SDKs

    Often a bonus

    5%

    5 of 92 employers

    Named in 2% of the role's postings. Of 13 postings that name it, it is a requirement in 2, part of the work in 3 and a bonus in 8.

    Employers naming it: Airwallex, Elastic, Arize AI, Databricks, Snorkel AI.

  33. 54
    AutoGenAgent frameworks and SDKs

    Often a bonus

    5%

    5 of 92 employers

    Named in 1% of the role's postings. Of 10 postings that name it, it is a requirement in 3, part of the work in 3 and a bonus in 4.

    Employers naming it: Airwallex, Airbnb, Cloudflare, Databricks, Elastic.

  34. 55
    KubeflowML training and serving

    Mostly a requirement

    5%

    5 of 92 employers

    Named in 1% of the role's postings. Of 9 postings that name it, it is a requirement in 8 and a bonus in 1.

    Employers naming it: Affirm, CoreWeave, Airbnb, Reddit, Robinhood.

  35. 56
    MLflowML training and serving

    Mostly a requirement

    5%

    5 of 92 employers

    Named in 1% of the role's postings. Of 8 postings that name it, it is a requirement in 6 and part of the work in 2.

    Employers naming it: Affirm, Reddit, Anyscale, Fireworks AI, Samsara.

  36. 57
    WorkatoAutomation and internal tools

    Mostly a requirement

    5%

    5 of 92 employers

    Named in 1% of the role's postings. Of 6 postings that name it, it is a requirement in 5 and part of the work in 1.

    Employers naming it: GitLab, Baseten, CoreWeave, Lyft, Samsara.

  37. 58
    WorkdayFinance, HR and contract systems

    Mostly a requirement

    5%

    5 of 92 employers

    Named in 1% of the role's postings. Of 6 postings that name it, it is a requirement in 5 and part of the work in 1.

    Employers naming it: Samsara, Databricks, Elastic, Lovable, Lyft.

  38. 59
    Apache IcebergData and retrieval

    Part of the day-to-day work

    4%

    4 of 92 employers

    Named in 2% of the role's postings. Of 13 postings that name it, it is a requirement in 1, part of the work in 9 and a bonus in 1.

    Employers naming it: Fivetran, Snowflake, CoreWeave, Reddit.

  39. 60
    ChatGPTAI work tools

    Part of the day-to-day work

    4%

    4 of 92 employers

    Named in 2% of the role's postings. Of 12 postings that name it, it is a requirement in 4 and part of the work in 8.

    Employers naming it: Fivetran, CoreWeave, Figma, Lovable.

  40. 61
    ZapierAutomation and internal tools

    Often a bonus

    4%

    4 of 92 employers

    Named in 1% of the role's postings. Of 7 postings that name it, it is a requirement in 3 and a bonus in 4.

    Employers naming it: Observe.AI, Baseten, Lyft, Samsara.

  41. 62
    GitHub ActionsDeveloper platforms

    Mostly a requirement

    4%

    4 of 92 employers

    Named in 1% of the role's postings. Of 6 postings that name it, it is a requirement in 4, part of the work in 1 and a bonus in 1.

    Employers naming it: Together AI, Lambda, n8n, Synthesia.

  42. 63
    JiraSupport, success and project tools

    Mostly a requirement

    4%

    4 of 92 employers

    Named in 1% of the role's postings. Of 6 postings that name it, it is a requirement in 3, part of the work in 1 and a bonus in 2.

    Employers naming it: Affirm, MongoDB, GitLab, OpenAI.

  43. 64
    LangSmithEvals and observability

    Mostly a requirement

    4%

    4 of 92 employers

    Named in 1% of the role's postings. Of 6 postings that name it, it is a requirement in 5 and part of the work in 1.

    Employers naming it: Coinbase, Elastic, Lyft, Mercor.

  44. 65
    Meta LlamaModel APIs and platforms

    Part of the day-to-day work

    4%

    4 of 92 employers

    Named in 1% of the role's postings. Of 6 postings that name it, it is a requirement in 1, part of the work in 3 and a bonus in 2.

    Employers naming it: Databricks, Liquid AI, Cerebras, Cloudflare.

  45. 66
    PineconeData and retrieval

    Mostly a requirement

    4%

    4 of 92 employers

    Named in 1% of the role's postings. Of 6 postings that name it, it is a requirement in 4 and a bonus in 2.

    Employers naming it: Instacart, Writer, CodeRabbit, Coinbase.

  46. 67
    WeaviateData and retrieval

    Mostly a requirement

    4%

    4 of 92 employers

    Named in 1% of the role's postings. Of 6 postings that name it, it is a requirement in 3 and a bonus in 3.

    Employers naming it: Instacart, Writer, Coinbase, Snorkel AI.

  47. 68
    DagsterData and retrieval

    Mostly a requirement

    4%

    4 of 92 employers

    Named in 1% of the role's postings. Of 5 postings that name it, it is a requirement in 4 and a bonus in 1.

    Employers naming it: Mercor, Clay, Instacart, Snorkel AI.

  48. 69
    PydanticAgent frameworks and SDKs

    Part of the day-to-day work

    4%

    4 of 92 employers

    Named in 1% of the role's postings. Of 5 postings that name it, it is a requirement in 1, part of the work in 3 and a bonus in 1.

    Employers naming it: Airwallex, Coinbase, Mercor, Snorkel AI.

  49. 70
    Vercel AI SDKAgent frameworks and SDKs

    Often a bonus

    4%

    4 of 92 employers

    Named in 1% of the role's postings. Of 5 postings that name it, it is a requirement in 2, part of the work in 1 and a bonus in 2.

    Employers naming it: Snowflake, Baseten, Cartesia, Okta.

  50. 71
    Claude Agent SDKAgent frameworks and SDKsNew wave

    Often a bonus

    3%

    3 of 92 employers

    Named in 1% of the role's postings. Of 7 postings that name it, it is a requirement in 1, part of the work in 1 and a bonus in 5.

    Employers naming it: Elastic, Snowflake, Baseten.

  51. 72
    Google Vertex AIModel APIs and platforms

    Mostly a requirement

    3%

    3 of 92 employers

    Named in 1% of the role's postings. Of 7 postings that name it, it is a requirement in 4 and a bonus in 3.

    Employers naming it: Coinbase, Databricks, Fireworks AI.

  52. 73
    LiteLLMAgent frameworks and SDKs

    Mostly a requirement

    3%

    3 of 92 employers

    Named in 1% of the role's postings. Of 5 postings that name it, it is a requirement in 4 and part of the work in 1.

    Employers naming it: Okta, Arize AI, Mercor.

  53. 74
    Semantic KernelAgent frameworks and SDKs

    Part of the day-to-day work

    3%

    3 of 92 employers

    Named in 1% of the role's postings. Of 5 postings that name it, it is a requirement in 2 and part of the work in 3.

    Employers naming it: Airwallex, Cerebras, Databricks.

  54. 75
    FAISSData and retrieval

    Often a bonus

    3%

    3 of 92 employers

    Named in 1% of the role's postings. Of 4 postings that name it, it is a requirement in 1 and a bonus in 3.

    Employers naming it: Instacart, Databricks, Snorkel AI.

  55. 76
    GleanAI work toolsNew wave

    Mostly a requirement

    3%

    3 of 92 employers

    Named in 1% of the role's postings. Of 4 postings that name it, it is a requirement in 4.

    Employers naming it: GitLab, Coinbase, CoreWeave.

  56. 77
    NotionSupport, success and project tools

    Mostly a requirement

    3%

    3 of 92 employers

    Named in 1% of the role's postings. Of 4 postings that name it, it is a requirement in 2, part of the work in 1 and a bonus in 1.

    Employers naming it: Affirm, Baseten, Lovable.

  57. 78
    QwenModel APIs and platforms

    Part of the day-to-day work

    3%

    3 of 92 employers

    Named in 1% of the role's postings. Of 4 postings that name it, it is part of the work in 3.

    Employers naming it: Databricks, Cerebras, DoorDash.

  58. 79
    Amazon DynamoDBData and retrieval

    Mostly a requirement

    3%

    3 of 92 employers

    Named in <1% of the role's postings. Of 3 postings that name it, it is a requirement in 2 and part of the work in 1.

    Employers naming it: Lyft, Perplexity, Vercel.

  59. 80
    FivetranData and retrieval

    3%

    3 of 92 employers

    Named in <1% of the role's postings. Of 3 postings that name it, it is a requirement in 1, part of the work in 1 and a bonus in 1.

    Employers naming it: Lovable, Mercor, Snowflake.

  60. 81
    NumPyML training and serving

    Mostly a requirement

    3%

    3 of 92 employers

    Named in <1% of the role's postings. Of 3 postings that name it, it is a requirement in 2 and a bonus in 1.

    Employers naming it: Ramp, Scale AI, Waymo.

  61. 82
    Delta LakeData and retrieval

    Part of the day-to-day work

    2%

    2 of 92 employers

    Named in 1% of the role's postings. Of 9 postings that name it, it is part of the work in 8 and a bonus in 1.

    Employers naming it: Fivetran, Snowflake.

  62. 83
    LookerAnalytics and BI

    Often a bonus

    2%

    2 of 92 employers

    Named in 1% of the role's postings. Of 9 postings that name it, it is part of the work in 1 and a bonus in 8.

    Employers naming it: Fivetran, CoreWeave.

  63. 84
    SigmaAnalytics and BI

    Often a bonus

    2%

    2 of 92 employers

    Named in 1% of the role's postings. Of 9 postings that name it, it is a bonus in 9.

    Employers naming it: Fivetran, Baseten.

  64. 85
    HadoopData and retrieval

    Mostly a requirement

    2%

    2 of 92 employers

    Named in 1% of the role's postings. Of 7 postings that name it, it is a requirement in 7.

    Employers naming it: Pinterest, Klaviyo.

  65. 86
    ModalML training and serving

    Often a bonus

    2%

    2 of 92 employers

    Named in 1% of the role's postings. Of 4 postings that name it, it is part of the work in 1 and a bonus in 3.

    Employers naming it: Mercor, DoorDash.

  66. 87
    Amazon RedshiftData and retrieval

    Mostly a requirement

    2%

    2 of 92 employers

    Named in <1% of the role's postings. Of 3 postings that name it, it is a requirement in 2 and a bonus in 1.

    Employers naming it: Samsara, Snowflake.

  67. 88
    Apache BeamData and retrieval

    Part of the day-to-day work

    2%

    2 of 92 employers

    Named in <1% of the role's postings. Of 3 postings that name it, it is a requirement in 1 and part of the work in 2.

    Employers naming it: Reddit, Spotify.

  68. 89
    CUTLASSML training and serving

    Mostly a requirement

    2%

    2 of 92 employers

    Named in <1% of the role's postings. Of 3 postings that name it, it is a requirement in 3.

    Employers naming it: Perplexity, Databricks.

  69. 90
    KerasML training and serving

    Mostly a requirement

    2%

    2 of 92 employers

    Named in <1% of the role's postings. Of 3 postings that name it, it is a requirement in 3.

    Employers naming it: Waymo, Klaviyo.

  70. 91
    MastraAgent frameworks and SDKsNew wave

    2%

    2 of 92 employers

    Named in <1% of the role's postings. Of 3 postings that name it, it is a bonus in 1.

    Employers naming it: MongoDB, Baseten.

  71. 92
    Salesforce AgentforceSales and GTM stackNew wave

    2%

    2 of 92 employers

    Named in <1% of the role's postings. Of 3 postings that name it, it is a requirement in 1.

    Employers naming it: Okta, Elastic.

  72. 93
    BoomiAutomation and internal tools

    2%

    2 of 92 employers

    Named in <1% of the role's postings. Of 2 postings that name it, it is a requirement in 1 and part of the work in 1.

    Employers naming it: CoreWeave, Lyft.

  73. 94
    ChromaData and retrieval

    2%

    2 of 92 employers

    Named in <1% of the role's postings. Of 2 postings that name it, it is a requirement in 1 and a bonus in 1.

    Employers naming it: Robinhood, Snorkel AI.

  74. 95
    GongSales and GTM stack

    2%

    2 of 92 employers

    Named in <1% of the role's postings. Of 2 postings that name it, it is a bonus in 2.

    Employers naming it: Samsara, Stripe.

  75. 96
    HexAnalytics and BI

    2%

    2 of 92 employers

    Named in <1% of the role's postings. Of 2 postings that name it, it is a bonus in 2.

    Employers naming it: Baseten, Ramp.

  76. 97
    JenkinsDeveloper platforms

    2%

    2 of 92 employers

    Named in <1% of the role's postings. Of 2 postings that name it, it is a requirement in 1 and part of the work in 1.

    Employers naming it: Deepgram, GitLab.

  77. 98
    LinearSupport, success and project tools

    2%

    2 of 92 employers

    Named in <1% of the role's postings. Of 2 postings that name it, it is part of the work in 1 and a bonus in 1.

    Employers naming it: Lovable, n8n.

  78. 99
    MongoDBData and retrieval

    2%

    2 of 92 employers

    Named in <1% of the role's postings. Of 2 postings that name it, it is part of the work in 1 and a bonus in 1.

    Employers naming it: Coinbase, Okta.

  79. 100
    MuleSoftAutomation and internal tools

    2%

    2 of 92 employers

    Named in <1% of the role's postings. Of 2 postings that name it, it is a requirement in 1 and part of the work in 1.

    Employers naming it: Elastic, Lyft.

  80. 101
    NetSuiteFinance, HR and contract systems

    2%

    2 of 92 employers

    Named in <1% of the role's postings. Of 2 postings that name it, it is a requirement in 1 and part of the work in 1.

    Employers naming it: Cerebras, Samsara.

  81. 102
    OpenCodeCoding agentsNew wave

    2%

    2 of 92 employers

    Named in <1% of the role's postings. Of 2 postings that name it, it is part of the work in 1 and a bonus in 1.

    Employers naming it: Baseten, Fireworks AI.

  82. 103
    OpenSearchData and retrieval

    2%

    2 of 92 employers

    Named in <1% of the role's postings. Of 2 postings that name it, it is a requirement in 1 and a bonus in 1.

    Employers naming it: Clay, Databricks.

On the radar

Newer AI tools that at least two employers already name in these postings. Small numbers, early signal.

Foundations these posts assume

Languages, platforms and basics most postings expect you to have already.

  • Python82%
  • Kubernetes54%
  • AWS52%
  • Go49%
  • TypeScript49%
  • Google Cloud42%
  • CI/CD40%
  • C++32%
  • Microsoft Azure32%
  • React32%
  • SQL28%
  • Java27%
  • JavaScript24%
  • Terraform24%
  • Docker23%
  • Rust21%
  • Linux and Unix15%
  • Node.js13%
  • Slack12%
  • FastAPI10%
  • GraphQL9%
  • Ansible8%
  • Argo CD and Argo Workflows7%
  • Next.js7%
  • Ruby5%
  • Scala5%
  • Git5%

The work they describe

Practices rather than products: what the postings say you will do.

  • LLMs88%
  • Building AI agents87%
  • Evals70%
  • Fine-tuning43%
  • RAG40%
  • GPU work39%
  • Prompt engineering38%
  • Function and tool calling37%
  • Using AI coding tools37%
  • Model Context Protocol (MCP)35%
  • Guardrails32%
  • Vector databases and search26%
  • Multi-agent systems24%
  • Embeddings22%
  • RLHF and preference tuning13%
  • Context engineering11%

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