1,064 backend engineer sr jobs at 469 companies in San Jose, CA

4w
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Sr Backend Engineer
San Francisco or New York
$167k-$219k/yr HybridFull Time
Quizlet
Quizlet: Digital learning platform providing study tools and flashcards.
4+ YOE4+ years backend or data engineering experience; strong SQL and data warehouse experience; proficiency in Python/Java/Scala; Elasticsearch/OpenSearch experience; experience building production data pipelines and backend services.
Elasticsearch, OpenSearch, SQL, Snowflake, BigQuery, Redshift, Python, Java, Scala, Airflow, Dagster, Prefect, dbt, REST, gRPC, Datadog, Prometheus, Grafana, Docker, Kubernetes, AWS, GCP, Azure, Spark, Kafka, Flink, FAISS, ScaNN, pgvector, LightGBM, XGBoost, BM25, HNSW, kNN
2w
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Sr. Backend Engineer
New York or Sunnyvale or Berkeley Heights or Alpharetta
$128k-$216k/yr OnsiteFull Time
Fiserv
FiservNew York Stock Exchange: FI: Provides financial technology and payment processing services to institutions.
10+ YOEBachelor's or equivalent,10+ years software engineering,Java/JVM and Spring Boot expertise,cloud-native/Kubernetes and Terraform experience,SQL/NoSQL schema design,REST API architecture,mentorship and on-call experience.
Java, Spring Boot, Kubernetes, Terraform, PostgreSQL, MySQL, Google Cloud Platform (GCP), GitHub Copilot, Cursor, Claude, ChatGPT
2mo
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Lead Backend Engineer
San Francisco or Lehi or Plano
$138k-$216k/yr HybridFull Time
Collective Health
Collective Health: Cloud platform for managing employer-sponsored health benefits.
10+ YOE10+ years backend engineering experience with Java and Spring Cloud, microservices and integration platform experience (Mulesoft), AI tooling familiarity, cloud (AWS/GCP), SQL/PostgreSQL, system development, and strong communication and leadership skills.
Java, Spring Cloud, Mulesoft, GitHub Copilot, Cursor, WindSurf, AWS, GCP, SQL, PostgreSQL
2w
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Principal Engineer, Backend Engineering
San Francisco, California, United States
$210k-$274k/yr OnsiteFull Time
Atlassian
AtlassianNASDAQ: TEAM: Develops software for team collaboration and project management.
Expert backend engineering to design and lead an AI proxy platform, ensure high availability, cost-efficiency, security integration, and mentor engineering teams.
Codex, Cursor, Claude Code, Rovo CLI
3mo
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Senior Backend Engineer
San Francisco, California, United States
$150k-$300k/yr OnsiteFull Time
Amari
Amari: AI agents automating document-heavy workflows for the logistics industry.
4+ YOE4–6 years backend software engineering in a high-growth startup; ownership of backend systems; strong architectural judgment; in-person SF collaboration.
1mo
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Senior Backend Engineer
San Francisco, California, United States
OnsiteFull Time
Slope
Slope: Provides an AI-powered B2B payments and credit platform.
5+ YOE5+ years backend experience; strong Node.js/TypeScript and Python skills; strong SQL and relational/database/ETL experience; API and service design; experience productionizing models and working with data science and risk teams.
Node.js, TypeScript, Python, SQL, Postgres, Snowflake, AWS
3mo
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Backend Engineer
San Mateo, California, United States
OnsiteFull Time
Luminary Cloud
Luminary Cloud: Cloud-native physics simulation platform for accelerated product engineering.
10+ YOE10+ years building high-performance backend systems; Kubernetes expertise; SaaS focus; cloud infrastructure and security; leadership and mentoring; strong communication.
Kubernetes, Docker, GCP, CI/CD
3w
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Staff Backend Engineer
New York City or San Francisco
$250k-$300k/yr OnsiteFull Time
Town
Town: AI-powered productivity assistant that automates workplace workflows.
Experienced backend engineer with production experience scaling distributed systems, LLM/agent infrastructure, workflow orchestration, and defining technical direction in fast-moving startups.
1mo
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Senior Backend Engineer
San Francisco, California, United States
$230k-$280k/yr OnsiteFull Time
Mochi Health
Mochi Health: Provides telehealth weight management and prescription medication services.
5+ YOE5+ years backend engineering experience, strong distributed systems and data modeling skills, experience owning infrastructure (Kubernetes, Terraform, AWS), proficiency with TypeScript/Node.js, excellent communication.
TypeScript, Node.js, Express, PostgreSQL, Redis, Kubernetes, Terraform, AWS, Codex 5.3, Claude Opus 4.6
2mo
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Staff Backend Engineer - Device Security
San Mateo, California, United States
$200k-$300k/yr OnsiteFull Time
Verkada
Verkada: Sells integrated AI-powered cloud physical security hardware and software.
8+ YOEBS/MS in CS/Engineering; 8+ years building Go/Python microservices on AWS with on-call experience; strong backend systems and architecture knowledge; familiarity with temporal, k8s, Docker, Redis, DynamoDB, Postgres, IAM, S3; IoT and security experience preferred.
Go, Python, AWS, temporal, k8s, Docker, Redis, DynamoDB, Postgres, IAM, S3
2w
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Senior Backend Engineer, Product
San Francisco, California, United States
OnsiteFull Time
Orion Sleep
Orion Sleep: Manufacturer of AI-powered smart mattress covers for sleep optimization.
Experience designing APIs, scaling backend systems from 0-1, and building infrastructure to support product features; strong backend engineering and system-architecture skills.
1mo
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Lead Backend Engineer
Redwood City, California, United States
HybridFull Time
Attain
Attain: Provides real-time purchase data and measurement solutions for marketers.
6+ YOEStrong backend engineering experience designing APIs, microservices, and data models; experience with cloud (AWS/GCP/Azure), gRPC/protobuf/GraphQL, relational databases, Rust-based services; 6+ years preferred; strong communication and leadership potential.
Rust, AWS, GCP, Azure, gRPC, protobuf, GraphQL, React Native, iOS, Android
2mo
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Semiotic Labs - Senior Backend Engineer
New York or San Francisco
RemoteFull Time
YieldNest
YieldNest: Liquid restaking protocol for risk-adjusted DeFi yields.
5+ YOE5+ years backend development in Python; async programming; deep PostgreSQL; multi-tenant data isolation; Redis; OpenTelemetry; AWS; strong system design and collaboration.
Python, FastAPI, Pydantic, Async SQLAlchemy, PostgreSQL, pgvector, Row-level security, Redis, OpenTelemetry, AWS, React, Vite
1w
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Sr. II Backend Engineer, Mobile API
San Mateo, California, United States
$176k-$220k/yr HybridFull Time
Slickdeals
Slickdeals: Platform for crowdsourcing and ranking consumer shopping deals.
Extensive backend development experience with PHP, RESTful or GraphQL APIs, relational databases, distributed systems, cloud platforms, containers, CI/CD, production monitoring, and cross-team technical leadership.
PHP, Vue, TypeScript, MySQL, PostgreSQL, RabbitMQ, Valkey, Redis, Kafka, Firebase Cloud Messaging, APNs, Docker, Kubernetes, GitHub Actions, JWT, RESTful, GraphQL, iOS, Android, CI/CD
2mo
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Senior Backend Engineer, Ambient AI
Mountain View or San Francisco or New York City
$170k-$230k/yr OnsiteFull Time
Commure
Commure: AI-powered software platform for healthcare workflow and administrative automation.
Professional software development experience; strong backend skills with Python and web frameworks; experience with containers and cloud (Docker, Kubernetes); production systems, alerting, metrics, and SRE practices; leadership and customer-facing experience.
Python, Flask, Django, FastAPIs, Docker, Kubernetes, LLMs, EHRs
2mo
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Senior Backend Engineer
San Francisco, California, United States
$175k-$275k/yr OnsiteFull Time
Hedra
Hedra: Builds artificial intelligence models for character-driven video generation.
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
1d
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Senior Backend Engineer
Oakland, California, United States
$150k-$200k/yr OnsiteFull Time
Arxlight
Arxlight: Developing next-generation autonomous drones for security and defense applications.
Requires Linux expertise, backend or systems development in Python, C++, Go, TypeScript, or similar languages, networking, Docker, Systemd, Git, and AI coding tools.
Linux, Python, C++, Go, TypeScript, Docker, CI/CD, Systemd, TCP/IP, UDP, Git, MAVLink, Kotlin, Java
2d
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Senior Backend Engineer
Redwood City, California, United States
OnsiteFull Time
Waystation
Waystation: AI-native procurement platform for consumer packaged goods.
6+ YOERequires 6+ years of production software experience, 2+ years at a seed-to-Series B startup, backend/data expertise, live schema migrations, queues, APIs, and strong communication.
TypeScript, Node, React, GraphQL, Postgres, Claude Code
2mo
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Senior Backend Engineer
San Francisco, California, United States
OnsiteFull Time
Judgment Labs
Judgment Labs: Infrastructure for monitoring and optimizing autonomous AI agents.
6+ YOE6+ years building high-throughput backend systems; strong API design, data modeling, distributed systems experience; hands-on with ClickHouse/Presto; EM and platform collaboration skills.
ClickHouse, Presto, Kafka, Spark, Flink, Ray, Airflow, Dagster, Prefect
1mo
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Backend Engineer, Flag Delivery
Oakland or San Francisco or New York City or Boston or Seattle or Irvine or Los Angeles or Monterey or Santa Barbara or Santa Rosa or Austin or Portland or Philadelphia or Chicago or United States
$146k-$235k/yr OnsiteFull Time
LaunchDarkly
LaunchDarkly: Provides a feature management platform for software development teams.
5+ YOE5+ years backend engineering experience building/operating production distributed systems; strong programming in Go/Java/Rust; production debugging, observability, on-call experience; clear AI usage in engineering work.
Go, Java, Rust