Top Senior Level Software Engineer Jobs in Los Angeles, CA

Design, build, and own scalable microservices and secure APIs that transfer value across blockchain and banking protocols. Extend in-house blockchain infrastructure, integrate with banks and cloud services, troubleshoot production issues, document system and testing procedures, and collaborate with product and engineering teams to deliver reliable payment experiences.

Build and scale Java backend services, recommendation infrastructure, and data-processing pipelines for Taboola’s performance advertising platform. Design reliable microservices, search and event-driven systems handling billions of events and terabytes of data. Own services end to end, including production monitoring, incident response, root-cause analysis, and continuous improvement. Collaborate with product and architecture teams, manage integration projects, mentor engineers, and use AI-assisted development tools.

Develop and maintain software applications using Python, Java, JavaScript, and AI-enabled technologies. Translate business requirements into technical designs, build microservices and enterprise integrations, debug and test code, support CI/CD releases, troubleshoot issues, and apply quality standards. Collaborate with stakeholders, interpret data, contribute to solution design, improve user experience, manage workstreams, and mentor junior team members.

Own the frontend platform powering Relativity Space’s operator UI, including the application shell, design system, shared data layer, and modular architecture. Lead consolidation of multiple frontends, support high-rate hardware telemetry rendering, establish frontend technical standards, and mentor engineers. The role requires deep TypeScript and React expertise, performance optimization for data-intensive applications, scalable state management, and cross-team architectural leadership.

Lead a highly technical backend engineering team building scalable SaaS systems and AI-powered accounting automation. Responsibilities include mentoring senior engineers and tech leads, resolving complex technical issues, guiding architecture and system design, reviewing code, operating distributed production systems, and driving AI-assisted software development using tools such as Cursor and Claude Code.

Develop and maintain software requirements, architecture, algorithms, interfaces, APIs, backend services, and user interfaces for SATCOM mission-planning systems. Work throughout the Agile and DevSecOps lifecycle, including design, coding, integration, testing, deployment, code reviews, automation, security, and performance improvements. Support CI/CD pipelines, Kubernetes optimization, databases, geospatial visualization, and software for space systems and ground segments.

Own and define Dubsado’s data infrastructure strategy, including pipelines, warehouse reliability, analytical modeling, data quality, observability, and tooling standards. Build scalable data systems, collaborate with engineering, product, and business teams, and support AI agents, customer-facing features, and internal users. Serve as the initial dedicated data specialist, operating autonomously while gradually distributing data quality ownership across engineering.

Develop and support C++ features for Lens Engine and Lens Studio, enabling augmented reality experiences across Snapchat and Specs. Contribute to agentic development tooling, architecture, technical roadmaps, code reviews, and cross-functional engineering efforts. Improve code quality, reliability, performance, testing, maintainability, and developer productivity while integrating AI-assisted workflows and systems.

Build and own integrations between Axle Health and EHR/EMR systems, including legacy platforms with inconsistent APIs. Scope projects, make technical decisions, manage timelines, resolve customer issues, coordinate with vendors, and provide production support. Develop scalable, secure backend services, monitoring, resilience, documentation, and high-quality code for high-volume healthcare data systems.

Build and own a React and three.js real-time 3D rendering layer for browser-based mission software. Render spacecraft, orbits, sensor volumes, live telemetry, and mission data at trusted frame rates. Translate design concepts into polished front-end components and interactions, manage 3D scenes, shaders, lighting, cameras, and level of detail, and prototype visual experiences. Collaborate with data and platform engineers while owning work from prototype through production, including performance and visual quality.