Top Software Engineer Jobs in Los Angeles, CA

Lead end-to-end flight software development for autonomous spacecraft, including mission operations tools, ground services, embedded vehicle software, telemetry, commanding, testing, simulation, and flight readiness. Collaborate with avionics, propulsion, GNC, and systems teams to define interfaces and data models. Support CI/CD, software- and hardware-in-the-loop testing, environmental testing, and flight campaigns in a fast-moving, on-site aerospace startup environment.

Administer and maintain Millennium's Atlassian/JIRA environments (production, dev, test); build projects, workflows, permissions; monitor server health; perform data migrations; provide user support and training; prepare documentation and coordinate upgrades and maintenance with IT.

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.

Leads the technical vision, architecture, and development of a high-fidelity spacecraft simulation platform. Designs multi-physics models, numerical solvers, APIs, and scalable real-time or batch simulation infrastructure using C++ and Python. Establishes verification and validation practices, engineering standards, and software quality expectations. Partners with GNC, mission planning, autonomy, and systems engineering teams while mentoring engineers and guiding cross-functional technical direction.

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.

Leads the engineering team building Circle’s customer onboarding and lifecycle management platform. Responsibilities include developing scalable onboarding automation, customer lifecycle capabilities, partner-facing APIs and SDKs, compliance tools, and product-specific verification workflows. The role owns architecture, reliability, security, operational excellence, cross-functional delivery, hiring, coaching, and development of senior and staff engineers across risk, compliance, fraud, product, and engineering teams.

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.

Build and maintain FloQast’s coded design system and component library using React and TypeScript. Partner with platform and global engineering teams, standardize UI patterns, manage design tokens, documentation, accessibility, visual testing, and versioning. Prototype AI-native interfaces, enable designers and PMs to contribute front-end code, audit legacy UI, and improve performance across complex enterprise SaaS workflows and financial dashboards.

Own the frontend platform for Relativity Space’s operator UI, including the application shell, design system, shared data layer, and unified platform architecture. Lead consolidation of multiple front ends, support high-rate live telemetry rendering, establish frontend technical direction and quality standards, and mentor engineers. Build performant, data-intensive applications using TypeScript and React, with state management and streaming data architectures.