6 lead software engineer back end jobs at 6 companies in Fairfield, CA

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Lead Software Engineer - Backend
San Mateo, California, United States
$168k-$208k/yr HybridFull Time
Freshworks
FreshworksNASDAQ: FRSH: Provides cloud-based customer support and IT management software.
6+ YOE6-8 years backend experience; Ruby on Rails; strong DSA, REST APIs, OOD/SOLID; system design; leadership potential; collaborative, agile mindset.
Ruby on Rails, REST APIs, RDBMS, Caching, Distributed Queues, Microservices, OOP, SOLID, AI tools and technologies
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Senior Engineer - Security Products (Backend APIs)
San Francisco, California, United States
$181k-$217k/yr HybridFull Time
Fastly
FastlyNYSE: FSLY: Provides edge cloud platform for content delivery and cybersecurity.
5+ YOE5+ years engineering experience with production Go; 3+ years building public APIs; strong RESTful API design, testing, observability, and on-call experience; ability to author design docs and lead end-to-end projects.
Go, Terraform, CI/CD, OpenAPI, OAuth, JWT, SAML, RBAC, AI coding agents
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Senior Software Engineer (Backend)
San Francisco, California, United States
$180k-$240k/yr HybridFull Time
Onos Health
Onos Health: AI-powered behavioral health platform for healthcare payers.
5+ YOE5+ years building software, prior experience leading engineering teams, strong system design and product sense, experience with cloud infrastructure and backend systems, familiarity with healthcare data preferred.
AWS, ECS, Bedrock, Glue, Docker, GitHub Actions, Terraform, Python, Django, Celery, Celery Beat, django-ninja, django-tenants, Next.js, TypeScript, TanStack Query, Shadcn UI, Zod, Nuqs, PostgreSQL, AWS RDS, S3, ClickHouse, GitHub, Jira, Claude Code, CoderabbitAI, Tusk
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Software Engineer, Backend
San Francisco, California, United States
$200k-$500k/yr OnsiteFull Time
Mercor
Mercor: Connecting expert human intelligence with frontier AI model development.
8+ YOE8+ years backend engineering experience with 3+ years at senior level, expertise in distributed systems, service architecture, data modeling, API design, and leading complex migrations; strong communication and mentoring skills.
Cursor, Claude Code, GitHub Copilot
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Staff Engineer, Product Engineering (Backend)
San Francisco, California, United States
$249k-$278k/yr HybridFull Time
Strava
Strava: Fitness tracking and social networking app for athletes.
10+ YOE10+ years backend engineering experience, tech lead experience, strong system design for distributed systems, proficiency in Scala/Go/Python and distributed tech (Kafka, Kubernetes, cloud).
Ruby, Scala, Go, Python, MySQL, Redis, Cassandra, Kafka, Kubernetes, Docker, AWS
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Engineering Manager, RCM AI Core Backend
Mountain View or San Francisco or Los Angeles or New York City
$200k-$225k/yr OnsiteFull Time
Commure
Commure: AI-powered software platform for healthcare workflow and administrative automation.
6+ YOE2+ Mgmt6+ years developing software, 2+ years leading engineering teams, experience delivering platform-scale backend systems, strong communication, and technical expertise in Python, PostgreSQL, and Kubernetes.
Python, PostgreSQL, Kubernetes, EHR