HiringCafe
Join our community

1,175 api engineer jobs at 575 companies in Vacaville, CA

PromotedHiringCafe
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
1w
Save
Mark Applied
Hide
MuleSoft API Developer
San Francisco, California, United States
$61k-$104k/yr HybridFull Time
Capgemini
CapgeminiEuronext Paris: CAP: Provides global IT consulting and digital transformation services.
3+ YOE3+ years as a MuleSoft API Developer; strong MuleSoft Anypoint Platform and Mule ESB experience; REST/JSON API design; integration with Salesforce; API design, deployment, testing; MuleSoft certification preferred.
MuleSoft Anypoint Platform, Mule ESB, MuleSoft Anypoint Studio, Salesforce
Job PostingView all
2mo
Save
Mark Applied
Hide
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
Job PostingView all
3mo
Save
Mark Applied
Hide
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
Job PostingView all
1mo
Save
Mark Applied
Hide
Principal API Architect, Product Engineering – Agent‑Ready APIs & Data
Pleasanton, California, United States
$206k-$310k/yr HybridFull Time
Workday
WorkdayNASDAQ: WDAY: Provides cloud-based software for financial and human capital management.
12+ YOE12+ years building large-scale backend systems and APIs, 5+ years in senior architecture roles, hands-on TypeScript or Python, OpenAPI/Swagger and API governance experience, MCP familiarity, strong communication and mentoring skills.
TypeScript, Python, REST, GraphQL, SOAP, JSON, XML, WSDL, Swagger, OpenAPI, MCP, Cursor, Claude Code, GitHub Copilot, Data Cloud, SQL, Agent Factory, Trident, Gateways
Job PostingView all
2w
Save
Mark Applied
Hide
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
Job PostingView all
6h
Save
Mark Applied
Hide
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
Job PostingView all
2w
Save
Mark Applied
Hide
API Platform and Ecosystem Development Manager
Montreal or San Francisco or Toronto
HybridFull Time
MaintainX
MaintainX: Provides mobile-first software for maintenance and asset management.
4+ YOE4+ years managing software development teams building APIs and integrations; strong foundation in distributed systems, API design (REST/GraphQL), data modeling, CI/CD, and developer/platform experience.
REST, GraphQL, CI/CD, SDKs, ERP, iPaaS, BI
Job PostingView all
1mo
Save
Mark Applied
Hide
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
Job PostingView all
6d
Save
Mark Applied
Hide
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
Job PostingView all
1mo
Save
Mark Applied
Hide
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
Job PostingView all
6d
Save
Mark Applied
Hide
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
Job PostingView all
1mo
Save
Mark Applied
Hide
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
Job PostingView all
3mo
Save
Mark Applied
Hide
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
Job PostingView all
1mo
Save
Mark Applied
Hide
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
Job PostingView all
3w
Save
Mark Applied
Hide
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
Job PostingView all
2w
Save
Mark Applied
Hide
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
Job PostingView all
2mo
Save
Mark Applied
Hide
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
Job PostingView all
2w
Save
Mark Applied
Hide
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
Job PostingView all
1mo
Save
Mark Applied
Hide
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
Job PostingView all
1mo
Save
Mark Applied
Hide
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
Job PostingView all

Explore Jobs

Expand Your Job Search