Software Engineer Jobs in Long Beach, CA

As a Senior Flight Software Engineer, you will develop software for spacecraft systems, integrating algorithms, and maintaining databases essential for space missions. You'll work through design to flight implementation, collaborating on software and hardware simulations.

Build and deploy AI-powered applications and agents for engineers and operators across the rocket manufacturing organization. Responsibilities include full-lifecycle software development, foundation-model integration, retrieval and vector search, evaluation, reliability, testing, continuous integration and deployment, and collaboration with users to define and iterate on solutions. The role uses modern AI, data, cloud, and platform technologies in manufacturing and physical-world environments.

Build and deploy AI-powered applications and agents used by engineers and operators. Responsibilities include full-cycle software development, foundation model integration, retrieval and tool use, evaluation, reliability, continuous delivery, and collaboration with non-software stakeholders. The role involves shipping production-quality systems across cloud and on-premise infrastructure while iterating on solutions for rocket manufacturing and launch operations.

As a Senior Flight Software Engineer, you'll design and implement flight software for deep-space missions, ensuring integration with spacecraft hardware and supporting verification processes for mission success.

The Staff Flight Software Engineer will design and develop flight-critical software for spacecraft, ensuring integration and operational success. Responsibilities include full lifecycle software development, collaboration with various teams, and support for testing and mission simulations.

The Software QA Engineer will execute manual and automated tests, document defects, collaborate with teams, and contribute to QA processes in a fast-paced environment.

The role involves designing and implementing simulation software for spacecraft using C++ and collaborating on algorithms for orbital mechanics and control.

Design, implement, and maintain APIs, backend services, and front-end interfaces for mission planning and satellite/ground systems. Lead feature development across the full lifecycle in an Agile DevSecOps environment, emphasizing automation, testing, security, performance, and code quality. Support integration, CI/CD pipelines, and geospatial visualization for defense communications systems.

Develop, integrate, and verify vehicle management software for flight systems. Build simulation and hardware-in-the-loop test environments, author and execute V&V test plans, automate test frameworks and CI/CD pipelines, investigate defects, maintain engineering/test documentation, and coordinate cross-functional verification efforts.

As a Flight Software Engineer II, you'll work on software for flight computers in space missions, focusing on design, integration, and testing of flight software and related systems.

Lead the technical vision and architecture of simulation software for spacecraft, focusing on multi-physics modeling and real-time execution, while driving engineering standards and mentoring teams.

As a Flight Software Engineer, you will assist in software development for flight computers, GNC algorithm integration, and spacecraft mission support, collaborating with teams on design and testing.

As a Flight Software Engineer III, you will lead software development for spacecraft systems, integrate GNC algorithms, and mentor junior engineers, contributing to innovative space technology solutions.

As a Principal Flight Software Engineer, you will lead the architecture and development of flight software for space missions, ensuring safety and reliability while collaborating on technical decisions and standards.

As a Staff Flight Software Engineer, you will assist in the software development cycle, integrate GNC algorithms, maintain command telemetry databases, and develop reusable driver libraries for flight hardware.

Own and architect a space-based storage platform spanning Linux kernel drivers, NVMe recovery, ZFS pool design, NFS serving, and automated fault recovery. Develop radiation-resilient storage systems, reliability models, fault-injection tests, and integration between drivers and filesystems. Prototype on commodity hardware, validate sustained high-throughput operation, and carry the architecture through platform integration and launch.

Support program software quality across development and supplier products: define/maintain processes, perform audits, plan and verify testing, support configuration management, drive corrective actions, participate in reviews, and report quality metrics to reduce risk and ensure compliance with standards.

Lead design, architecture, and implementation of APIs, front-end interfaces, and backend services for satellite and ground systems. Guide Agile/DevSecOps development, CI/CD, automated testing, and security practices; lead code reviews, mentor team members, and own features through full lifecycle to deployment.

Build and own backend infrastructure connecting robotics, ML inference, data platform, and digital twin. Develop APIs, CRUD services, frontend visualizations, and deploy software to edge and cloud. Integrate with robotics software, support real-time monitoring, and create internal tooling for observability and developer productivity.

Own and build backend software connecting robotics, ML inference, data platform, and digital twin. Develop APIs, user-facing apps, CRUD services, and visualization. Deploy and maintain software on edge and cloud, integrate with ROS, and collaborate with robotics, data, ML, and infrastructure teams to improve observability and developer tooling.

Develop and maintain operations software for rocket and spacecraft testing and mission operations, including telemetry ingestion, processing, storage, and user-facing displays. Own assigned engineering tasks, produce operation documentation, and coordinate with stakeholders to ensure mission success.

Own and evolve Relativity's agentic infrastructure: agents, model routing, context pipelines, inter-agent communication, and supporting services. Deploy and operate local LLM inference across Mac Studio and GPU hardware, manage Linux/macOS systems, Proxmox VMs/containers, multi-site networking, storage and recovery. Build CLIs, dashboards, automation, improve observability and failure recovery, contribute upstream open-source, design security for local compute and package the stack for internal and customer deployments.

Build, operate, and harden Relativity's agentic infrastructure: agents, model routing, context pipelines, inter-agent communication, local LLM inference, multi-site networking, VMs/containers, storage/backups, observability, tooling, and secure deployments for engineers and customers.

The role involves leading engineering decisions, shipping production code for the iOS app, and participating in product discussions to enhance user experience.

As a Software Engineer on the Platform team, you will design and maintain APIs for backend services, collaborate with cross-functional teams, and ensure optimal backend architecture.