backend engineer jobs in Los Angeles

Immigration runs on data scattered across a dozen government systems and nearly impossible to navigate alone. Lawfully turns it into clarity . We bring that data into a clean, live case timeline that millions of immigrants — and the law firms serving them — depend on. With the recent launch of Lawfully Intelligence , we've opened that data layer up to...

Realize your potential by joining the leading performance-driven advertising company and a proud Great Place to Work® Certified employer in the US! As a Senior Backend Engineer working on the R&D Team in Downtown Los Angeles, utilizing some of the latest technology and tools, you will contribute to building and improving Taboola’s recommendation...

About the Company Mango Voice is a leading provider of cloud-based communication solutions, helping businesses of all sizes connect with their customers through innovative VoIP, SMS, and collaboration tools. We are rapidly expanding our partner ecosystem and are looking for a driven individual to help build the technical evolution of our platform. About the...

AfterQuery is looking for experts with experience in software engineering, computer science, or app/web development to help train and evaluate AI models. This is a remote, project-based role: qualify once through a single assessment and receive ongoing project matches spanning code review, evaluation, and original task creation. Pay ranges from $50 to...

About Us:Based in San Francisco, California, Turing is the world’s leading research accelerator for frontier AI labs and a trusted partner for global enterprises deploying advanced AI systems. Turing supports customers in two ways: first, by accelerating frontier research with high-quality data, advanced training pipelines, plus top AI researchers who...

Earn Up To $50/hr as an OpenClaw Agent Builder Shape the future of autonomous agents like OpenClaw. Freelance, remote, up to $50 USD/hr. Weekly payments. Trusted by 10,000+ software engineers worldwide MIN EXP REQUIRED 2+ years PAY RATE Up to $50 USD/hr Earn Up To $50 USD/hr— Plus Additional Incentives Rates vary based on expertise and project...

Snap Inc. is seeking a Backend Engineer to design, implement, and operate our most critical services at scale. You will work across teams to translate product requirements into robust backend solutions, test and debug for quality, and advocate for availability and cost efficiency.You will apply AI tools to accelerate development while maintaining security...

About Us:Based in San Francisco, California, Turing is the world’s leading research accelerator for frontier AI labs and a trusted partner for global enterprises deploying advanced AI systems. Turing supports customers in two ways: first, by accelerating frontier research with high-quality data, advanced training pipelines, plus top AI researchers who...

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure...

Riot Games is seeking a Staff Software Engineer on the Vanguard Platform Services team to build scalable backend platform services and internal tools for millions of players. You will own APIs, shape platform reliability, and influence architectural decisions in a fast-paced environment.You will collaborate with Anti-Cheat, Security, and Game teams,...

Outlier is seeking skilled contributors to shape the future of autonomous agents like OpenClaw. This freelance role offers remote work with pay up to $50/hr and weekly payments. You’ll collaborate on multi-step agent orchestration, data parsing, and real-time system interactions to improve AI agents used by leading organizations. Ideal candidates bring 2+...

Parallel Systems is seeking a Backend Software Engineer II to build train control software for autonomous rail vehicles. You will work on Rust-based backend systems modeling train movement authorities, bulletins, switches, and signals, with growth toward PTC capabilities.The role emphasizes implementing features end-to-end, reading railroad specs, and...

Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? We collaborate with leading AI organizations to train LLMs to function as proactive, multi-step agents, focusing on teaching systems how to design, coordinate, and optimize complex...

About Us: Based in San Francisco, California, Turing is the world’s leading research accelerator for frontier AI labs and a trusted partner for global enterprises deploying advanced AI systems. Turing supports customers in two ways: first, by accelerating frontier research with high-quality data, advanced training pipelines, plus top AI researchers who...

Affim is building an AI Platform to design, run, and govern AI workloads at scale, with gateways, runtimes, and evaluators powering production workloads for thousands of users.You will own backend decisions, design scalable services, and collaborate with security and product teams to establish safe, reusable components. A strong foundation in distributed...

Prediktive is seeking a Back End Developer with strong TypeScript experience to join a long-term project for a Fintech client in Los Angeles. This fully remote role welcomes candidates based in Latin America who can collaborate across time zones.You will design, build, and maintain backend services, APIs, and data pipelines, with a focus on reliability,...

Commure is building the AI Operating System for healthcare. The Senior Backend Engineer on the Revenue Cycle Management (RCM) AI team ships end-to-end AI-enabled backend features that automate claims processing and denials handling, with guardrails and compliance built in.You’ll own design, development, and production deployment from day one. You’ll...

AI Backend Systems Engineer Remote, Nationwide Our client is building advanced AI technology designed to turn increasingly capable models into dependable, real-world software. They are seeking an AI Backend Systems Engineer to help create the infrastructure behind intelligent applications and automated workflows operating at production scale. This is an...

Reddit is seeking a senior backend software engineer to help build app conversion signals that power Reddit’s app advertising business. You will work on MMP integrations, SKAN processing, and App CAPI to make app installs and in-app events more reliable for advertisers. Join a team focused on scalable ingestion, data lineage, and privacy-aware design,...

Northbeam is seeking a Staff-level Software Engineer who leans backend to help scale a data-driven marketing intelligence platform. You’ll spend ~70% on backend and distributed systems and 20–30% on frontend, owning architecture across the stack from problem to production.You’ll collaborate with data scientists, product managers, and designers to...