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1,181 api engineer jobs at 577 companies in Petaluma, CA

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Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
2mo
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API Inspector
Benicia, California, United States
$90k-$150k/yr OnsiteFull Time
Team
TeamNYSE: TISI: Provides industrial asset integrity, inspection, and specialty mechanical services.
Experienced API Inspector with active API 510/570/653 certifications; field-based; strong report writing; travel required.
NDT, IDMS, digital inspection tools
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3mo
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Senior API Integration Engineer
Sunnyvale or San Francisco
$165k-$200k/yr OnsiteFull Time
Crusoe
Crusoe: Provides energy-efficient cloud infrastructure powered by stranded and renewable energy.
7+ YOE7+ years in API development or integration engineering; 3+ years with Workato (preferably Workato ONE); extensive experience with REST, OAuth 2.0, SAML, JSON/XML, iPaaS; ERP/CRM integrations; GDPR/SOC 2 compliance; Jira/CI‑CD workflows; HR data models familiarity.
Workato, REST, OAuth 2.0, SAML, JSON, XML, Jira, Confluence, CI/CD
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2w
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Software Engineer, Developer API
New York City or San Francisco or United States or Canada or United Kingdom
$168k-$330k/yr HybridFull Time
Ramp
Ramp: Financial operations platform for corporate cards and spend management.
5+ YOE5+ years backend engineering, experience building APIs/platforms, hands-on with Python, Temporal, and Postgres, familiarity with AI coding agents, strong ownership and developer-experience focus.
Python, Temporal, Postgres
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1d
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Staff Software Engineer, Foundation Model API
San Francisco or Mountain View
$190k-$265k/yr OnsiteFull Time
Databricks
Databricks: A unified platform for data analytics and artificial intelligence.
8+ YOE8+ years backend/infrastructure experience, distributed systems, scalable APIs, cloud-native infra, real-time serving/ML infra/GPU orchestration, strong Scala/Go/Python skills, product ownership and customer engagement.
OpenAI, Anthropic, Gemini, Qwen, GPT-OSS, Llama, SageMaker, Vertex AI, Azure ML, FMAPI, Apache Spark™, Delta Lake, MLflow, Scala, Go, Python
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1mo
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Software Engineer, API SDK
San Francisco or Seattle or New York City
$293k-$385k/yr HybridFull Time
OpenAI
OpenAI: Develops artificial intelligence models and generative AI software services.
7+ YOE7+ years of professional engineering experience; experience building SDKs; design and implement SDKs for multiple languages; collaborate across teams.
Python, Node.js, Golang, Java, Ruby, SDK generation
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1w
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Staff Software Engineer, API Platform
San Francisco or Seattle
OnsiteFull Time
Stripe
Stripe: Provides online payment processing and financial infrastructure for businesses.
12+ YOE5+ Mgmt12+ years technical experience,5+ years strategic technical leadership,experience with API design and infrastructure,proficient in Java/Ruby/Python/Go,strong communication and problem-solving skills.
Java, Ruby, Python, Go, Kafka, Kubernetes
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1mo
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Member of Technical Staff (Software Engineer, API Platform)
San Francisco or New York City
$220k-$405k/yr OnsiteFull Time
Perplexity
Perplexity: AI-powered search engine providing conversational answers with citations.
5+ YOE5+ years backend engineering with Python, Go, or Rust; strong high-traffic API design, AWS and Kubernetes experience, CI/CD and DevOps fluency; experience with AI APIs a plus.
Python, Go, Rust, AWS, Kubernetes, CI/CD
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1w
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Senior Software Engineer - API Platform & Client Tooling
Bellevue or Livingston or New York City or San Francisco or Sunnyvale
$153k-$204k/yr OnsiteFull Time
CoreWeave
CoreWeaveNASDAQ: CRWV: Cloud platform providing GPU-accelerated infrastructure for AI workloads.
Production Go experience, API design and versioning, client tooling/SDK/CLI or provider work, code-generation or compiler/tooling experience preferred, cross-team collaboration and mentorship.
Go, gRPC, protocol buffers, Buf, ConnectRPC, Terraform Plugin Framework, Cobra, CWIC
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1mo
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Product Engineer
San Francisco or Seattle
HybridFull Time
Plenful
Plenful: Automates administrative and operational workflows for healthcare organizations.
3+ YOE3+ years engineering experience building integrations; strong Python skills; experience with REST APIs, EDI X12, FHIR/HL7, AS2 and translating data formats; BA/BS in CS or equivalent preferred.
Epic, Cerner, Athena, EDI X12, FHIR, HL7, AS2, REST API, Python, JSON, XML, CSV
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20h
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Forward Deployed Engineer
San Francisco, California, United States
$160k-$250k/yr OnsiteFull Time
Juicebox
Juicebox: AI-native platform for automated candidate discovery and talent sourcing
Strong engineering fundamentals, experience with APIs/webhooks/OAuth/SSO/ATS, debugging and integration skills, clear communication, high ownership.
APIs, webhooks, OAuth, SSO, ATS
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3mo
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Forward Deployed Engineer
San Francisco, California, United States
$155k-$185k/yr OnsiteFull Time
Assort Health
Assort Health: Automating healthcare call centers with specialty-specific AI agents.
Strong software engineering with Python, APIs, multi-system integrations; experience shipping production code; comfortable with ambiguity; healthcare interest.
Python, APIs, Healthcare platforms integration
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1mo
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Forward Deployed Engineer
San Francisco, California, United States
$130k-$170k/yr HybridFull Time
Attio
Attio: Provides a customizable AI-powered customer relationship management platform
2+ YOE2+ years as a developer or GTM engineer; deep GTM tooling experience; API integrations; no-code/low-code; data infrastructure knowledge.
Zapier, N8n, Make, APIs, GTM tools, Claude Code, Cursor, AI coding platforms, Segment, Rudderstack, Polytomic
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3w
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Senior Partner Engineer
United States or Canada or Los Angeles or San Francisco
$146k-$225k/yr RemoteFull Time
Affirm
AffirmNasdaq: AFRM: Financial platform providing installment loans for consumer purchases.
4+ YOE4+ years in solutions/partner/sales engineering or similar; familiarity with ecommerce technologies, JSON, HTML, REST APIs, Webhooks, monitoring tools; strong communication and project management skills.
Shopify, Stripe, JSON, HTML, REST API, Webhook
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2w
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Forward Deployed Engineer
New York City or San Francisco or Los Angeles County or California or United States
$162k-$219k/yr HybridFull Time
Hatch
HatchNYSE: YELP: AI-powered customer engagement platform for home service businesses
1+ YOEHands-on engineer building n8n flows, direct API integrations, webhooks, and middleware; client-facing consulting; 1+ years software engineering experience (consulting preferred); strong communication and technical documentation skills.
n8n, API, webhook, CRM
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2mo
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Senior AI Agent Engineer
Boston or Berkeley
$120k-$210k/yr HybridFull Time
Liberate
Liberate: AI agents automating insurance workflows for sales, service, and claims
7+ YOE7+ years in solutions engineering/technical consulting; BS in CS/Engineering; strong ownership and customer focus; Python/Java; APIs, data integration, cloud; excellent communication.
Python, Java, APIs, Cloud platforms
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2w
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Senior Software Engineer, Integrations (API Sources & Automation) - Hiring Sprint
San Francisco, California, United States
$196k-$255k/yr HybridFull Time
Airbyte
Airbyte: Open-source data integration platform for automated data movement.
5+ YOE5+ years building backend systems and developer tooling in Python; experience designing APIs/frameworks and leveraging AI/LLM APIs; strong systems thinking, automation, mentoring, and ability to drive ambiguous initiatives.
Python, Java, Airbyte CDKs, Connector Builder, MCP, SDKs, CLI, LLM APIs
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1mo
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Senior Product Systems Engineer
Golden or San Francisco or Toulouse
$160k-$210k/yr OnsiteFull Time
Loft Orbital
Loft Orbital: Deploy and operate satellite missions for organizations and governments.
Strong systems engineering background across software and hardware; experience defining architecture, interfaces, and requirements; expertise with distributed systems and APIs; strong communication and documentation skills.
CONOPS, ICDs, OBSW, APIs
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1mo
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Founding Engineer
San Francisco, California, United States
OnsiteFull Time
Clera
Clera: AI talent agent matching professionals with high-growth startup roles
Proficiency with TypeScript/JavaScript and Python; backend Node.js and REST API experience; frontend React; PostgreSQL and Supabase; experience integrating OpenAI or Claude; ability to own product areas and ship to production rapidly.
TypeScript, JavaScript, Python, Node.js, React, PostgreSQL, Supabase, OpenAI, Claude, REST API
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2mo
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Forward Deployed Engineer - CFD & Physics AI
San Mateo, California, United States
OnsiteFull Time
Luminary Cloud
Luminary Cloud: Cloud-native physics simulation platform for accelerated product engineering.
CFD/engineering experience, Python, PyTorch, API/SDK workflows, customer-facing travel, strong communication, independent problem-solver.
Python, PyTorch, APIs, Docker, Git
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1mo
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AI Tooling Engineer
San Francisco or Seattle or Los Angeles or New York City or United Kingdom or Ireland or Poland or Germany or Australia or North America or Europe
$200k-$260k/yr RemoteFull Time
Whatnot
Whatnot: Social marketplace for buying and selling via live streams
4+ YOE4+ years industry experience, 1+ years applied AI/LLM product experience; strong fluency with prompt engineering, RAG, MCP, agents, evals; systems-integration experience with APIs/webhooks; strong communication and mentorship skills.
Anthropic, OpenAI, Google, APIs, webhooks, LLM, RAG, MCP, evals
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