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Senior Backend Engineer
San Francisco, California, United States
$175k-$275k/yr OnsiteFull Time
5+ YOE5+ years backend development with Python, FastAPI/Pydantic; Kubernetes/EKS; relational databases; AWS stack; building scalable services.
Python, FastAPI, Pydantic, Kubernetes, EKS, PostgreSQL, Redis, S3, DynamoDB, AWS
1w
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Senior Software Engineer II, Enterprise Platform
San Francisco, California, United States
$180k-$256k/yr OnsiteFull Time
7+ YOE7+ years backend engineering experience with APIs, multi-tenancy, auth, Python/FastAPI, Kubernetes, AWS, and database design; strong API design and developer experience focus.
Python, FastAPI, Kubernetes, AWS, SQL, OpenAPI, OIDC, OAuth 2.0, OPA, REST
2w
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Founding Engineer
San Francisco, California, United States
$120k-$150k/yr OnsiteFull Time
Experienced engineer to build core systems for quoting, procurement, and decision-making; systems thinking, high ownership, speed with judgment; familiarity with Next.js, TypeScript, Python/FastAPI, and PostgreSQL.
Next.js, TypeScript, Python, FastAPI, PostgreSQL
2mo
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Staff Platform Engineer (Pacific Time Zone)
San Francisco, California, United States
$225k-$275k/yr HybridFull Time
Senior backend engineer with platform and control-plane experience; strong Python (FastAPI) and AWS; multi-tenant SaaS; focus on observability, reliability, and developer productivity.
Python, FastAPI, AWS, Snowflake, Airflow, Spark, RBAC, API design, KMC/PSS
1mo
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Backend Software Engineer
San Francisco, California, United States
$167k-$231k/yr HybridFull Time
3+ YOE3+ years software development experience (AI/ML focus), BS/MS in CS/Engineering or equivalent, experience with GenAI, Python APIs (FastAPI/Django), containerized cloud deployments (Docker, AWS), CI/CD, and secure coding.
Python, FastAPI, Django, AWS, Docker, Terraform, Pulumi, React
2w
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Backend Engineer - Mission Operations Services
San Francisco or Golden or Toulouse
$140k-$190k/yr OnsiteFull Time
Production Python development, Docker/container experience, backend web frameworks (Django/Flask/FastAPI), API design (HTTP/GraphQL/REST), and working with databases (Postgres, time-series DBs). Experience operating mission-critical systems preferred.
Python, Docker, Django, Flask, FastAPI, GraphQL, HTTP, REST, Postgres, InfluxDB, TimescaleDB, Kubernetes, Cockpit
3w
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ML Platform Engineer
United States or San Francisco
$136k-$167k/yr RemoteFull Time
5+ YOE5+ years software development experience focused on data/ML/AI infrastructure; building scalable distributed systems; strong coding and design skills; proficiency with Python/Golang, Kafka, Postgres, Redis, FastAPI, Ray; cloud experience (AWS).
Python, Golang, Kafka, Postgres, Redis, FastAPI, Ray, AnyScale, LangGraph, LangSmith, AWS
3w
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Product Engineer
San Francisco, California, United States
$115k-$150k/yr OnsiteFull Time
2+ YOE2+ years full-stack engineering experience; strong Python and React preference; SQL fluency; experience with FastAPI/Postgres/React stack; strong communication, systems mindset, and customer-focused problem solving.
FastAPI, Python, Postgres, PostgreSQL, React, SQL, Slack
3mo
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Senior Full Stack Engineer, Agentic Security
San Francisco or Amsterdam or New York or London or Bengaluru
RemoteFull Time
Strong full-stack experience building backend services and React/TypeScript UIs; proficiency with Python/FastAPI, PostgreSQL, Redis, Docker/Kubernetes, CI/CD, and AWS; familiarity with agentic/AI-assisted development workflows.
Python, FastAPI, NestJS, React, TypeScript, PostgreSQL, Redis, Dockerfiles, Helm charts, GitHub Actions, K8s, AWS, PyInstaller, Cursor, Claude Code, agent skills, CLI, Next.js, uv, pyproject.toml, ArgoCD, Redis Streams, Git
2mo
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Product Engineer
San Francisco or New York
OnsiteFull Time
Build AI-native applications end-to-end using React/TypeScript, Python, FastAPI, and Postgres; ship features with observability and real customer impact. Strong experience with at least one LLM API and RAG mindset.
React, TypeScript, Python, FastAPI, PostgreSQL, LLM API
1d
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Fullstack Software Engineer
San Francisco or New York City or United States
RemoteFull Time
2+ YOEProficiency with TypeScript, React, Python (FastAPI), PostgreSQL, and AWS; 2+ years full-stack experience; fintech or regulated-industry experience; strong CS fundamentals.
TypeScript, React, Python, FastAPI, PostgreSQL, AWS
3mo
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Senior/Staff Software Engineer (Full-Stack Engineer)
New York or San Francisco
$120k-$180k/yr HybridFull Time
5+ YOE5+ years in building customer-facing full-stack products; strong React/TypeScript; Python/FastAPI backends; system design and platform thinking; experience with AI-enabled workflows.
React, TypeScript, Python, FastAPI, SQL, NoSQL
3mo
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Founding AI Backend Engineer
San Francisco or New York
OnsiteFull Time
3+ YOE3–6 years backend or full-stack experience; strong Python; FastAPI; SQL databases; Linux; Docker; cloud infrastructure; debugging mindset.
Python, FastAPI, PostgreSQL, SQLAlchemy, Linux, Docker, AWS, GCP, Render, DigitalOcean, OpenCV, YOLO
2mo
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Platform Engineer, GenAI/ML
San Francisco, California, United States
$155k-$175k/yr HybridFull Time
Experience building AI/ML platforms, GenAI, and MLOps; production cloud experience; strong data tooling; familiarity with LangChain, FastAPI, MLflow, Kubeflow, and data technologies; collaborative and ownership mindset.
LangChain, FastAPI, MLflow, Kubeflow, Feast, Pandas, Spark, Airflow, SQL, Snowflake, AWS
2w
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Principal Engineer, CoCounsel
Eagan or Frisco or New York City or Toronto or Ann Arbor or San Francisco or Los Angeles or Irvine or McLean or Washington
$159k-$295k/yr HybridFull Time
Bachelor's degree (or equivalent) in CS or CE, deep Python and distributed systems experience, hands-on AI/LLM and agent experience, FastAPI/PostgreSQL/AWS familiarity, identity/IAM (SAML, OIDC, OAuth 2.0) expertise, strong communication.
Python, FastAPI, PostgreSQL, AWS, SSO, SAML, OIDC, OAuth 2.0, RBAC, ABAC, Anthropic, OpenAI, LLMs, MCP servers, vector databases, embeddings, semantic search
2mo
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Senior Backend Engineer (Python)
San Francisco, California, United States
$175k-$250k/yr RemoteFull Time
4+ YOE4+ years building production back-ends in Python; real-time streaming; AWS/GCP/Azure; PostgreSQL/Redis; FastAPI/asyncio; HIPAA security.
Python, FastAPI, asyncio, WebRTC, WebSockets, gRPC, AWS, GCP, Azure, Kubernetes, Kafka, SQS, Pub/Sub, Terraform, PostgreSQL, Redis, OpenTelemetry
3mo
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Staff Backend Software Engineer
San Francisco or Montreal
RemoteFull Time
Backend software engineer with Python (Django/Flask/FastAPI), TypeScript (React), Docker, AWS/GCP; design scalable distributed systems.
Python, Django, Flask, FastAPI, TypeScript, React, Docker, AWS, GCP, PostgreSQL, Redis, REST, GraphQL
3mo
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Software Engineer - Senior Backend
San Francisco, California, United States
HybridFull Time
5+ YOE5+ years backend or systems engineering; CS/comp eng degree; Python and FastAPI; distributed systems; API design; PostgreSQL and OLAP; multi-tenant SaaS; cloud-native; observability.
Python, FastAPI, PostgreSQL, ClickHouse, REST, gRPC, GraphQL, OpenTelemetry, Kubernetes
3w
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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
1w
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Senior Software Engineer, Full-Stack
San Francisco, California, United States
$170k-$230k/yr HybridFull Time
7+ YOE7+ years software engineering experience with deep backend expertise; experience with distributed systems, production LLM/Generative AI systems, FastAPI, MongoDB/Postgres, Docker, and AWS; strong communication and product mindset.
FastAPI, MongoDB, Postgres, Docker, AWS, LLMs, Generative AI
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