Top Senior Full-Stack Engineer Jobs in Los Angeles, CA

Design and build full-stack features for Avigilon Alta, develop integrations and APIs, evolve platform architecture, operate cloud infrastructure, ensure reliability with automated tests and monitoring, and collaborate cross-functionally in an agile environment.

The Senior Full-Stack Developer will design, build, and maintain AIO Logic's cloud-based AXIS platform, utilizing React and Java/Spring Boot to deliver software solutions for complex financial workflows, collaborating with cross-functional teams, and mentoring junior developers.

The role involves collaborating with product management and quality assurance teams to design and implement features for web-based investment/trading applications, focusing on building and maintaining high-quality code and APIs, while supporting production environments.

The Senior Fullstack Engineer will build and manage enterprise authentication systems, improve user session management, ensure security compliance, and support internal API usage across services, while enhancing performance and reliability.

As a Senior Fullstack Engineer, you'll contribute to backend development for Toast's New Ventures team, collaborating on architecture and launching MVPs while addressing unmet operator needs.

The Senior Software Engineer will design and implement scalable full-stack solutions, modernize legacy systems, and collaborate across teams while supporting AI-driven shopping experiences.

Drive feature development and architectural decisions across frontend and backend systems, mentor junior engineers, identify tech debt, and collaborate across departments.

Design and build core services for AI products, implement compliance guardrails, debug fullstack issues, and participate in code reviews.

As a Senior Software Engineer in ZT1, you will lead backend system development, manage projects, and influence product direction in a fast-paced, AI-centric environment.

Design, build, deploy, and optimize scalable full-stack applications integrating databases, APIs, and AI/LLM workflows. Lead architecture, CI/CD (ArgoCD, GitLab), Airflow pipelines, and collaborate cross-functionally to deliver production-grade fintech solutions.

As a Senior Software Engineer, you'll implement collaboration features, support team architecture, work across tech stacks, and improve developer experience.

As a Senior Full Stack Engineer, you will design, develop, and maintain scalable solutions for Viant's DSP, collaborating across teams and optimizing for performance and reliability.

The Senior Full Stack Engineer will lead the development of scalable backend services using Python and AWS Serverless, mentor team members, and integrate AI tools into the software development lifecycle.

As a Senior Full-Stack and Platform Software Engineer at mabl, you will develop features for an AI-powered test automation platform, enhancing user experiences, designing APIs, and optimizing data pipelines while collaborating with cross-functional teams.

As a Senior Software Engineer, you'll design, develop, and maintain full-stack applications, utilizing TypeScript and modern frameworks while collaborating cross-functionally to enhance user experience and performance.

The Senior Full Stack Developer will create AI-powered systems focusing on backend services in Python, integrating LLMs, and ensuring reliable deployment on cloud platforms.

The Senior Full-Stack Engineer will develop and maintain LAMP-based web applications, manage AWS infrastructure, troubleshoot issues, and mentor junior engineers while collaborating with distributed teams.

As a Senior Full Stack Engineer, you will design, build, and operate internal tools and systems, collaborating with Sales and Marketing to enhance operational efficiency and user experience while ensuring scalability and reliability in a SaaS environment.

As a Senior Full-stack Engineer, you will build and enhance scalable platform components, collaborate on shared services, and improve engineering practices.

The role involves designing and developing microservices using .NET and ReactJS, deploying applications on Azure, and utilizing AI coding assistants for software development.

As a Senior Fullstack Software Engineer, AI, you'll design AI systems, build backend functionalities, support scalable solutions, and collaborate with cross-functional teams to enhance customer experiences.

The role involves building and shipping high-quality applications for grocery store operations, collaborating with engineering, product, and design teams, and ensuring software quality through automated testing.

As a Senior Fullstack Engineer, you'll develop end-to-end features for Cart & Checkout, collaborating with cross-functional teams. You will design full-stack solutions and ensure quality through documentation and monitoring, while also mentoring junior engineers and optimizing systems for performance.

Design, develop, and maintain scalable web applications, mentor junior developers, optimize performance, and ensure best practices in coding.

Design, build, and scale data integrations for healthcare systems, collaborating with teams and enhancing functionality while ensuring security and quality.