Backend Developer Jobs in California, United States

BayRock Labs seeks a Backend Developer to build scalable backend services using Node.js and Java. The role involves designing RESTful APIs, integrating with SQL and NoSQL databases, and collaborating with front‑end and product teams.

Humanity Protocol seeks a Backend Developer to design, implement, and maintain robust backend services that power its decentralized finance platform. The role involves building scalable APIs, optimizing database performance, and ensuring high availability and security.

Pacific Life seeks a Senior Java Backend Developer to join the Workforce Benefits Division in Newport Beach, CA. The role focuses on designing, developing, and optimizing Java-based backend services, microservices, and RESTful APIs that support the company’s insurance platform. Responsibilities include system integration with front‑end teams, technical mentorship, performance tuning, and troubleshooting.

We’re looking for an experienced software developer with proficiency in backend technologies and a passion for building scalable and performant services that serve millions of customers. As part of our team, you will be pivotal in developing, optimizing and maintaining services that power features and personalization across Adobe’s web, desktop and mobile landscape.

Also backend team builds the core infrastructure for connected EVs, delivering secure data ingestion, APIs, and fleet intelligence. The Staff Cloud Backend Developer drives architecture, improves cloud services, and ensures high availability and security across global deployments.

E2B Backend team builds the services powering the E2B Dashboard and SDK for AI agents. The role designs and owns Go APIs, auth, billing, real-time log pipelines, and optimizes data access, partnering with dashboard engineers and Core/Platform teams.

Adobe seeks experienced backend engineer to build scalable services for Adobe.com and desktop/web apps. Collaborate with product managers, design, code, review, test, fix bugs, monitor, document production-level software.

To get the best candidate experience, please consider applying for a maximum of 3 roles within 12 months to ensure you are not duplicating efforts. Job Category Software Engineering Job Details About Salesforce Salesforce is the #1 AI CRM, where humans with agents drive customer success together.

Contact Center Systems team at Navan builds modern services to power customer and agent experiences. The Senior Backend Platform Developer designs and implements production-grade Node.js serverless APIs on AWS Lambda, creates observability pipelines with OpenSearch and CloudWatch, and integrates AI-assisted tooling to automate routing and support workflows.

LiveRamp, a leader in data collaboration and identity resolution, seeks a Senior Software Development Engineer – Big Data Backend to build and maintain data pipelines powering the largest Identity Resolution graph in the U.S. The role involves designing, optimizing, and deploying batch-oriented data pipelines using Spark, Hadoop MapReduce, and Apache Beam on Google Cloud Platform, as well as managing cloud resources (BigQuery, Dataproc, Dataflow, PubSub). The engineer will collaborate with Data

Zscaler’s Service Platform Automation team builds the orchestration and reliability automation that manages the ZIA fleet lifecycle at massive scale. The role designs deterministic workflows, implements safe rollouts, adds observability, and integrates AI/LLM to accelerate legacy code migration.

Tennis Channel’s Backend Platform team builds the core services that power live streaming, content management, personalization, and analytics for millions of users across mobile, TV, and hybrid apps. As an SDE, you design, develop, and operate microservices, REST/GraphQL APIs, and event‑driven systems to support high‑throughput, low‑latency features such as content ingestion, metadata, and recommendations.

PayPal seeks a Senior Python Developer to design, build, and maintain backend services that power global payment solutions. The role spans the full Software Development Lifecycle, from architecture and coding to testing, deployment, and operations.

Pacific Life seeks a Senior Java Backend Developer to build and optimize backend services, APIs, and microservices for its Workforce Benefits Division. The role focuses on designing robust, configuration‑driven solutions that support member enrollment, policy administration, and billing workflows within the insurance domain.

Lead backend engineer at CVS Health building scalable NestJS services, driving technical vision, mentoring teams, and implementing best practices across distributed locations.

Intermediate-level role in applications development at Citigroup. Contribute to system analysis, programming, and enhancements.

ClarOps team at Clara builds and operates the internal systems that power the company's financial platform, including an integration platform for AI‑enabled tools. The Senior Backend Engineer will lead design and implementation of high‑impact microservices, shape technical direction, and partner cross‑functionally to ensure scalability and performance.

Exponent seeks a Backend Engineer to build scalable Python services that power AI-driven software agents. The role focuses on FastAPI, async programming, and high-throughput data interactions with Postgres and Redis.

Navier AI is pioneering autonomous engineering agents that design, simulate, and optimize complex products across aerospace, automotive, and advanced manufacturing. As a Backend Engineer, you will build the core infrastructure that powers these agents, from model serving and simulation orchestration to secure, scalable APIs.