Top Software Engineer Jobs in Denver & Boulder, CO

Maintain and improve GameChanger's backend API server and SDK. Implement API/SDK changes, improve developer ergonomics, optimize performance and scalability, design critical systems, document and mentor teammates, and participate in on-call rotation.

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.

Lead a team of software engineers supporting critical retail-banking applications. Design and develop software solutions, provide technical guidance, review code and documentation, troubleshoot complex incidents, and apply SRE practices. Maintain on-call rotation for after-hours critical incidents. Use OpenShift, Hogan, Dynatrace, and Linux; collaborate on releases and modernize application delivery.

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.

Design and implement secure, scalable backend services for voice agents, integrate AI models and telephony, improve inference, debug concurrent systems, and collaborate with Product to deliver features end-to-end.

Design, develop, integrate, and maintain ERP financial applications using Oracle and PL/SQL. Optimize performance, resolve defects and integration issues, apply security and compliance standards, participate in Agile/Scrum, lead code reviews, estimate work, and mentor junior developers to support finance operations and revenue objectives.

Build and independently deliver full-stack healthcare software features using Java or Groovy, React and TypeScript, MongoDB, and Kafka. Responsibilities include design, implementation, testing, deployment, production debugging, code reviews, design documentation, dependency coordination, process improvements, and mentoring. The role requires reliable delivery with minimal oversight and collaboration across engineering, product, and QA teams in a remote-first environment.

Develop and ship full-stack web and mobile experiences across Affirm’s consumer app and website. Collaborate with product, design, analytics, and engineering teams to break down projects, make technical decisions, write tested and extensible code, launch scalable APIs, monitor service health, support on-call operations, review code, and participate in team development and interviewing.

Build SDKs, self-service apps, and reusable abstractions for Coinbase's data platform. Develop data integration and processing tools, enable observability and security (cataloging, lineage, access controls), and collaborate with analysts, data scientists, and engineers to scale and operationalize data pipelines and models.

The Software Engineer will develop Java-based applications, support the software development lifecycle, and mentor junior engineers in a missile defense project.

Boeing seeks motivated C2BMC Systems Software Engineers to design, develop, maintain, and test Java applications for missile defense systems, support agile lifecycle processes, and mentor junior engineers.

Build full-stack web applications and containerized microservices for defense and intelligence customers. Develop front-end and back-end services using APIs or message buses, employ observability tools, follow Agile and CI/CD practices, and collaborate on distributed teams. Must hold active TS/SCI clearance and work on-site.

Design, develop, and maintain full‑stack web applications and containerized microservices for defense and intelligence customers. Build front-end and back-end services, integrate APIs/message buses, use CI/CD, monitoring, and collaborate on distributed Agile teams to deliver mission-focused software.

Design, develop, and maintain full-stack web and backend microservices for defense/intelligence customers. Build containerized services, front-end applications, and API/message-bus integrations using observability tools and CI/CD in an Agile, distributed team environment.

Design, develop, and maintain full-stack web applications and containerized microservices for defense/intelligence customers. Build frontend and backend services, integrate APIs or message buses, use CI/CD, and collaborate on Agile teams while operating in an on-site cleared environment.

Build full-stack web applications and containerized microservices for defense/intelligence users. Develop front-end (React/Vue) and back-end services (APIs/message bus), use CI/CD, observability tools, and collaborate in Agile teams on mission-focused signal and image processing software.

Design, build, and maintain front-end and back-end components for containerized microservices supporting defense and intelligence users. Work on APIs or message-bus integrations, implement software engineering best practices, participate in CI/CD and Agile processes, and collaborate with distributed teams.

Design, implement, and maintain front-end and back-end components for containerized microservices. Work on signal/image-processing software for defense/intelligence customers, participate in Agile CI/CD teams, and collaborate across distributed teams.

Build and scale consumer-facing mobile and web applications and backend services. Own features end-to-end across frontend and backend, optimize databases and queries, integrate third-party APIs, implement algorithms for risk and transaction evaluation, improve reliability and CI/CD, and contribute to testing, monitoring, and internal tools to support customer operations.

The Software Engineer will develop tools for data migration from relational databases to MongoDB, collaborating with teams to implement high-quality backend code.

Develop and improve MongoDB’s distributed database networking and observability components. Responsibilities include writing production-level C++ code, enhancing performance, availability, scalability, and resource efficiency, integrating observability frameworks, leading medium-sized projects, collaborating across the product lifecycle, and participating in code reviews and technical design. The role requires strong software architecture fundamentals and an interest in networking, observability, and computer systems internals.

Designs, develops, tests, and architects complex flight software for space systems. Responsibilities include writing maintainable code, collaborating on requirements, managing changes with version control, conducting code reviews, troubleshooting issues, documenting processes, and mentoring engineers. The role also provides technical leadership and contributes to innovative mission, spacecraft, and payload-control software solutions.

Join as a Software Engineer contributing end-to-end to Palantir products (Foundry, Gotham, Apollo). Write high-quality code, collaborate with cross-functional teams, engage with customers to understand problems, and iterate from design to shipping while learning from a dedicated mentor.

Contribute code to Palantir products (Gotham, Foundry, Apollo) as part of a small team. Participate across the product lifecycle, collaborate with cross-functional partners, learn from a mentor, and build scalable features used by diverse customers.