Top Application Engineer Jobs in Los Angeles, CA

Develop reliable software solutions for K2 Space's satellite operations, collaborating with engineers and leaders to improve design and operations.

Develop reliable, mission-critical applications used across SpaceX for launch vehicle production, flight operations, Starlink, manufacturing, and customer systems. Responsibilities include designing, prototyping, coding, testing, deploying, monitoring, and improving software performance. The engineer will own product development, investigate user needs, participate in architecture and code reviews, and collaborate with engineering teams. This is an onsite role that may require extended hours or weekends based on launch schedules.

Develop highly reliable real-time applications for SpaceX launch vehicle production, Starlink, manufacturing, satellite operations, and customer systems. Responsibilities include architecture, design, code reviews, prototyping, experiments, and collaboration across engineering disciplines. Candidates need STEM education, software development experience, and familiarity with networking or distributed systems. The role may require extended hours and weekends.

Leads technical direction and multi-year strategy for Netflix’s Application Networking organization. Partners with engineering leads to shape architecture for globally scaled distributed systems, service-to-service communication, external traffic, identity, security, and access enforcement. The role addresses complex, ambiguous technical challenges, influences stakeholders across business units, contributes to open-source or industry standards, develops senior engineers, and communicates with engineering, product, and executive audiences.

Design, deploy, operate, and scale mission-critical application platforms. Build infrastructure as code, improve observability, participate in on-call rotation and incident response, collaborate with software teams, optimize performance, and support vehicle software engineers.

Build, operate, and scale mission-critical application infrastructure and tooling for vehicle and satellite software delivery. Manage infrastructure as code, improve observability, collaborate with engineers, participate in on-call rotation, perform incident response and postmortems, and provide end-user support to reduce build and test times.

Build, operate, and scale mission-critical application platforms to accelerate vehicle software delivery. Manage infrastructure as code, improve observability, collaborate with developers, run on-call rotations, conduct blameless postmortems, and reduce performance bottlenecks to support Falcon, Starship, Dragon, and Starlink software lifecycles.

Develop HPC and AI software workflows for experimental data processing, imaging, plasma, high-energy physics, and materials simulations. Profile applications, benchmark performance, identify bottlenecks, and advise collaborators and product teams. Build tutorial examples, translate research into software tools, and represent NVIDIA at scientific conferences and industry events.

Maintain and modernize a legacy C#/.NET codebase, design and build new cloud-based applications, write front- and back-end code, add unit/integration tests, review code, troubleshoot issues, and collaborate across teams to improve architecture and reliability.

Leads DevOps and application operations for critical enterprise applications. Responsibilities include production reliability, SLO and SLA management, incident response, release and deployment operations, observability, automation, capacity planning, disaster recovery, security compliance, performance optimization, stakeholder service reviews, and mentoring AppOps engineers. The role supports 24x7 reliability through on-call participation and cross-functional collaboration with engineering, cloud, security, and compliance teams.

The Senior Software Engineer will design and develop IMS TM and DB-compatible technologies, providing architectural leadership and mentoring while optimizing mission-critical applications for modern environments.

Designs and develops enterprise-scale applications, collaborating with business analysts and system architects. Implements web- and API-based solutions using Java, .NET, AngularJS, JavaScript, SOAP/REST, MuleSoft, and low-code/no-code BPMN tools (Appian, Salesforce, Nintex) with SQL Server in agile/hybrid environments.

Implement, configure, and provide L3 support for Fircosoft/Firco Continuity sanctions screening across payments (SWIFT, Wire, ACH, real-time). Configure screening rules and utilities, manage integrations (MQ/MQFTE, Kafka, file transfers, TWS), develop SQL and Unix/Linux scripts, and support upgrades, deployments, CI/CD, monitoring, incident management, RCA, and performance optimization.

Design and build full-stack applications that expose AI/ML insights. Develop backend services in Python, RESTful APIs, and containerized microservices. Build high-performance front-end interfaces with React/Vue/Angular. Implement cloud-native solutions on Google Cloud or Azure, manage relational and NoSQL databases, apply testing and CI/CD, and participate in Agile development and architecture sessions.

Lead and manage a team building mission-critical finance applications. Own system roadmaps, prioritize and deliver reliable, highly available software, collaborate with finance and engineering partners, and improve systems for data integrity, auditability, and scale.

Design, develop, test, deploy, and maintain UiPath RPA automations and reusable components. Support process discovery, pilots, integration with enterprise systems, documentation, performance metrics, cybersecurity compliance, and user adoption for U.S. Coast Guard automation initiatives.

As a Staff Application Platform Engineer, you will enhance developer productivity, design scalable systems, ensure security, and collaborate cross-functionally on projects from ideation to deployment.

As a Software Engineer in Simulations, you will develop and maintain high-fidelity simulation software, improve reliability and performance, and collaborate with engineering teams.

Design, build, and maintain highly reliable full-stack applications used across SpaceX. Own architecture, development, testing, deployment, and performance optimization. Collaborate with cross-functional teams, prototype solutions, and support production systems for launch and Starlink operations.

Design, develop, and maintain highly reliable full‑stack applications used across SpaceX for manufacturing, launch, and satellite operations. Own product lifecycle from prototyping to deployment, collaborate on architecture and code reviews, optimize performance, and implement testing, CI/CD, monitoring, and operational tooling.

The Software Engineer will design, develop, and test simulation software for SpaceX flight systems, focusing on core infrastructure and high-fidelity models of physical systems.

The Simulation Software Engineer will develop, maintain, and test simulation software for SpaceX’s flight systems, and collaborate across engineering teams to enhance simulation fidelity and performance.

Design and develop simulation software for SpaceX flight systems, enhancing fidelity and performance while collaborating across engineering teams.

Design, build, and maintain mission-critical full stack applications for SpaceX and Starlink. Own architecture, development, testing, deployment, and performance optimization. Collaborate cross-functionally to prototype, deliver production systems, and deeply understand user problems. Work onsite and support launch cadence, including extended hours when required.

Design, build, and own mission-critical full-stack applications used across SpaceX and Starlink. Develop reliable software, prototype designs, improve performance, integrate CI/CD and monitoring, collaborate on architecture, and solve user problems to support high-throughput manufacturing and satellite operations.