111 senior fastapi developer jobs at 79 companies in New York
1mo
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Senior Software Engineer
New York City or Arizona or California or Colorado or Connecticut or Florida or Georgia or Maine or Maryland or Massachusetts or Michigan or Minnesota or New Jersey or New York or North Carolina or Oregon or Rhode Island or South Carolina or Tennessee or Texas or Virginia or Utah or Wisconsin
$165k-$185k/yr RemoteFull Time
8+ YOE8+ years backend experience with modern Python stack, leadership experience, proficiency in Postgres/SQLAlchemy, AWS, Terraform, FastAPI, React/TypeScript, observability, and familiarity with AI-assisted development.
Python, FastAPI, Pydantic, PostgreSQL, SQLAlchemy, Alembic, Temporal, Redis, AWS RDS, AWS S3, AWS SQS, AWS DynamoDB, AWS ECS, AWS IAM, Terraform, React, TypeScript, Claude Code
2mo
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Senior Software Engineer
New York or Israel
HybridFull Time
7+ YOE7+ years building high-performance backend systems; strong Python and FastAPI expertise; experience with PostgreSQL, Redis, GCP, and OpenAI/LLM integrations; architectural leadership and collaboration skills.
Python, FastAPI, PostgreSQL, Redis, OpenAI, GCP, Claude Code, Cursor, Copilot
1w
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Senior Python Engineer
New York City, New York, United States
RemoteFull Time
5+ YOE5+ years professional software engineering experience; expert Python and FastAPI; production API and PostgreSQL experience; Docker and CI/CD familiarity; experience with ML/AI systems; fluent English.
Python, FastAPI, PostgreSQL, Docker, CI/CD
2d
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Senior Software Engineer
New York, New York, United States
$137k-$180k/yr HybridFull Time
5+ YOE5+ years full-stack experience with React and Python (Django/FastAPI), REST APIs, relational databases, Docker, cloud (AWS/Azure), CI/CD; strong communication and interest in AI/ML.
React, Python, Django, FastAPI, Docker, AWS, Azure, GitHub Actions, OpenAI, Anthropic, LangGraph, LangChain, Pinecone, Weaviate, Databricks, Snowflake, Airbyte, n8n, Zapier, Temporal
3mo
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Senior AI Engineer
New York, New York, United States
$120k-$165k/yr OnsiteFull Time
5+ YOE5+ years experience building production-grade Python AI/LLM applications; hands-on with FastAPI/Flask, SQL, concurrency, testing, production reliability, and mentoring; experience with cloud-native and container technologies preferred.
Python, FastAPI, Flask, SQL, Large Language Models (LLM), OpenTelemetry, Grafana, Prometheus, Docker, Kubernetes, Kafka, Redis, Jenkins, GitHub Actions
2mo
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Senior Platform Engineer
Atlanta or Boston or Chicago or Dallas or New York
HybridFull Time
6+ YOE6+ years backend platform engineering; Kubernetes, Python, Postgres, Kafka, Redis; security and AI tooling.
Python, FastAPI, Pydantic, SQLAlchemy, Alembic, PostgreSQL, Redis, Kafka, Docker, Kubernetes, OpenTelemetry, Prometheus, Helm, Vault, Azure Key Vault, Azure Monitor
3mo
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Senior Software Engineer
New York, New York, United States
$173k-$193k/yr HybridFull Time
5+ YOE5+ years engineering experience; strong Python and Django; production experience with LLMs and distributed systems; REST/GraphQL API design; strong communication and ownership.
Python, Django, FastAPI, LLMs, SQL, Redis, Celery, REST, GraphQL
6d
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Senior RAG Engineer
New York or Norway or Sweden or Ireland or United States
RemoteFull Time
5+ YOE5+ years building backend production systems with 2+ years shipping retrieval/RAG; strong Python and FastAPI; experience running vector indexes (Qdrant), embeddings, PostgreSQL/Redis, OCR-heavy ingestion and IR metrics.
Python, FastAPI, Qdrant, PostgreSQL, Redis
1mo
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Senior Fullstack Engineer
New York, New York, United States
$112k-$180k/yr HybridFull Time
6+ YOE6+ years building internal/enterprise web apps; strong front-end (React, TypeScript, Next.js), backend Python with async frameworks (FastAPI), REST/JSON, and SQL; experience with job orchestration, long-running workflows, and cloud data platforms.
React, TypeScript, Next.js, Python, FastAPI, REST APIs, JSON, SQL, Databricks, AWS, Google Cloud, CI/CD, Genie
2mo
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Senior Research Engineer - Experimental Engineering
Yonkers or Washington or Colchester or Arizona or California or Connecticut or Illinois or Maryland or Massachusetts or Michigan or New Hampshire or New Jersey or New York or Texas or Vermont or Virginia or District of Columbia
$115k-$160k/yr RemoteFull Time
Senior research engineer with deep full-stack software engineering experience, strong applied AI/ML knowledge, prototyping and R&D experience, Python/FastAPI and frontend (React/React Native) familiarity, and ability to lead experiments and mentor engineers.
AI, Machine Learning, Python, FastAPI, React, React Native, RAG
1mo
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Senior AI Engineer
United States or New York City or Palm Beach or Los Angeles or Miami or Greenwich or Westchester County or The Hamptons or San Francisco or Manhattan
$190k-$250k/yr RemoteFull Time
4+ YOE4+ years building and operating LLM-powered production ML systems, strong Python, backend framework experience (FastAPI/Flask), LLM orchestration and retrieval design, Snowflake/dbt/Dagster/Airflow familiarity, evaluation systems, HIPAA/PHI knowledge, and strong written communication.
Python, FastAPI, Flask, Snowflake, dbt, Dagster, Airflow, vLLM, Triton, TGI, SGLang, LOINC, SNOMED CT, ICD-10, RxNorm, FHIR, HL7
2mo
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Senior AI Engineer
Zurich or Toronto or New York City or London or Berlin or Manila or Tokyo
HybridFull Time
5+ YOE5+ years software engineering experience with 2–3 years building AI agents; experience with LangChain/LangGraph, Model Context Protocol (MCP)/FastMCP, Databricks or Snowflake, Python, FastAPI, Postgres, gRPC, AWS, and observability tools (LangSmith/LangFuse). Master's preferred; valid work permit required.
Model Context Protocol (MCP), FastMCP, Databricks, Snowflake, LangChain, LangGraph, LangSmith, LangFuse, Python, FastAPI, gRPC, Postgres, SQLAlchemy, AWS, AWS Bedrock, Bedrock AgentCore, Kubernetes, Claude Code, Cursor
1mo
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Backend Engineer (Senior/Staff)
New York City, New York, United States
$175k-$225k/yr RemoteFull Time
5+ YOE5–10+ years backend engineering experience; strong backend systems, data modeling, and compliance logic; proficiency with Python (FastAPI, Pydantic, pandas, duckdb), Postgres/SQL, and AWS; strong communication and ownership.
Python, FastAPI, Pydantic, pandas, duckdb, Postgres, SQL, AWS, LLMs, Playwright
2mo
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Senior AI Engineer
Plano or Purchase or Chicago
$111k-$185k/yr HybridFull Time
8+ YOESenior AI Engineer with 8+ years in software lifecycle, ML/AI, and production-grade agent systems; strong Python/Java, distributed systems, and ML Ops experience.
Python, Java, FastAPI, asyncio, Pydantic, LangChain, LangGraph, CrewAI, MLflow, Arise, Docker, Kubernetes, Ray, Kafka, gRPC, Redis, Prometheus, OpenTelemetry, Grafana, Temporal, MEM0, Temporal Agentic Memory, Graph and Vector DBs
2mo
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Senior Software Engineer - Platform & Infrastructure
New York City, New York, United States
$160k-$200k/yr RemoteFull Time
5+ YOE5+ years software engineering experience with infrastructure, platform, or reliability focus; cloud (AWS), IaC (Pulumi/Terraform), modern CI/CD; strong security mindset; observability and SRE practices; collaborate with product teams.
AWS, Pulumi, PostgreSQL, ECS, Docker, Temporal, Python, FastAPI, SQLAlchemy, Datadog, PagerDuty, GitHub Actions, Auth0, Vanta, Fern
1mo
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Senior Software Engineer, Engine & Distributed Systems
San Francisco or New York City
$220k-$240k/yr HybridFull Time
5+ YOE5+ years building backend distributed systems; experience with durable execution/workflow orchestration (Temporal, Cadence, Airflow), strong Python and FastAPI skills, Postgres familiarity, concurrency, fault tolerance, and recovery.
Temporal, Cadence, Airflow, Python, FastAPI, Postgres, PydanticAI, LangGraph
3mo
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Senior Software Engineer, AI Products & Agents (New York, NY, US, 10036)
New York, New York, United States
$124k-$186k/yr OnsiteFull Time
5+ YOE5+ years of software development experience; strong Python and JavaScript/TypeScript; React/Next.js; REST APIs; data warehouses (BigQuery/Snowflake); AI-enabled features; end-to-end ownership; mentoring and standards.
Next.js, FastAPI, Python, TypeScript, React, REST APIs, BigQuery, Snowflake, Docker, Kubernetes, GCP, AWS, Airflow, Prefect, Dagster, LangChain, LangGraph, OpenAI, Anthropic, Gemini, LLM
4w
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Senior Software Engineer, W&B Agent - W&B
Livingston or New York City or San Francisco or Sunnyvale or Bellevue
$182k-$242k/yr OnsiteFull Time
4+ YOE4+ years full‑stack experience with Python backend and React/TypeScript frontend; experience with FastAPI, Kubernetes, distributed systems, observability, and MySQL; security- and performance-minded.
Python, FastAPI, Kubernetes, React, TypeScript, Datadog, Weave tracing, MySQL, WebSockets, server-sent events
1w
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Senior Software Engineer
New York City, New York, United States
$150k-$250k/yr OnsiteFull Time
8+ YOE8+ years software development experience; mastery of one major language (Python, Java, Go, C++); system design for distributed scalable systems; data engineering and ETL; strong SQL and API design skills.
Python, Java, Go, C++, PostgreSQL, MySQL, SQL, REST, gRPC, OpenTelemetry, Grafana, ELK, Docker, GitLab CI, Jenkins, Ansible, Terraform, Kafka, Redis, Airflow, React, TypeScript, FastAPI, Flask, SQLAlchemy, pytest, mypy, Apache Spark, Scala, Rust
1mo
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Senior Mobile Engineer
Barcelona or Dublin or London or New York City
RemoteFull Time
Deep React Native and TypeScript experience, shipped production mobile apps, experience rebuilding or migrating apps, strong product/UX focus, reliability on low-spec devices, familiarity working across web and mobile stacks and using AI-assisted development.
React Native, TypeScript, React, Node.js, Capacitor, Python, FastAPI, AWS Fargate, Amazon Aurora, Amazon SQS, Postgres, MongoDB, Docker
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