Top Senior C++ Jobs in Phoenix, AZ

Design, develop, maintain, test, and debug embedded software for aerospace and avionics systems. Define requirements, support DO-178 software lifecycles, collaborate with cross-functional engineering teams, and contribute to system architecture, certification, and hardware optimization. The role requires expertise in embedded C/C++ development and aerospace standards, with up to 10% travel and an initial 90-day fully onsite period in Phoenix.

Designs and validates electromagnetic interference and compatibility compliance from component through system level. Responsibilities include developing interference, shielding, and isolation models; performing EMI/EMC testing and troubleshooting; designing specialized RF test apparatus; creating work instructions, qualification procedures, reports, and analyzing test data. Requires collaboration across engineering teams, occasional travel, off-shift work, and active Top Secret clearance with SCI access eligibility.

Deploys, integrates, hardens, and operates modular C-UAS data and software platforms in secure DoD environments. Builds data pipelines across classification boundaries and disconnected conditions, integrates mission systems, manages Kubernetes-based infrastructure, supports accreditation, and handles observability, incident response, upgrades, and backup recovery. The role also documents solutions, trains mission teams, represents field needs to engineering, and mentors junior forward-deployed data engineers. Most work is remote with occasional travel to restricted environments and SCIFs.

Build and support complex features across C#/.NET back-end services and React front ends. Responsibilities include technical design, API and data modeling, secure and tested coding, production troubleshooting, code reviews, mentoring, documentation, and improving engineering practices. Collaborate with Product, QA, DevOps, Technical Leads, and architecture teams while balancing delivery, maintainability, performance, accessibility, observability, and security.

Design, implement, test, and modernize backend services and integrations (TypeScript/Node.js and C++). Lead large projects, write technical specifications and API contracts, enforce coding standards, coach engineers, and drive legacy-to-modern migrations within online banking and core systems.

Build and lead high-performance browser features in modern C++ and Chromium, including tracker blocking, subscription integrations, and responsiveness monitoring. Own complex projects from proposal through post-mortem, solve ambiguous technical problems, make architecture decisions, collaborate asynchronously with product and design, and use metrics to evaluate outcomes in a large-scale consumer codebase.

Build and maintain scalable, cloud-native APIs and high-value core system components using .NET and related technologies. Lead software architecture and testing discussions, enhance core offerings, collaborate cross-functionally, and ensure quality through code reviews, unit testing, functional testing, telemetry, and performance tuning. Mentor teammates and contribute to continuous technical and process improvement.

Develop and integrate C/C++ ground support equipment software, simulators, test tools, and core applications in a Linux-based classified environment. Responsibilities include requirements and design documentation, testing, peer reviews, configuration management, hardware/software interface support, system integration, deployment, and troubleshooting. Higher-level duties may include technical leadership, mentoring, schedule support, and customer or program discussions. The role is fully onsite in Chandler, Arizona, requires an active Secret clearance, and follows a 9/80 schedule.

Design, build, test, and maintain full-stack web applications using .NET/C# and SQL. Optimize T-SQL, create technical documentation, write user stories, conduct unit testing, estimate work, and collaborate with users and teams for enhancements and issue resolution.

Leads the architecture, design, integration, verification, and technical oversight of spacecraft Command and Data Handling electrical systems. Responsibilities include flight computers, data buses, telemetry, command systems, harnesses, requirements, interface documentation, design reviews, risk mitigation, manufacturing coordination, cost and schedule development, and hardware/software integration. The role provides technical leadership across avionics, software, GNC, and mission operations while mentoring engineers and supporting program execution.

Design and develop low-latency, high-throughput distributed database kernels for massively parallel analytics. Responsibilities include architecture, modern C++ development, MPI/OpenMP query execution, SIMD and hardware optimization, distributed networking, database internals, in-database machine learning, vector indexing, performance tuning, code reviews, mentoring, and resolving scalability issues across large-scale clustered systems.

Design and develop low-latency, high-throughput distributed database kernels for massively parallel analytics. Responsibilities include query execution, columnar storage, transaction management, cluster coordination, hardware-aware optimization, SIMD vectorization, RDMA networking, in-database machine learning, vector indexing, performance tuning, architecture reviews, code reviews, mentoring, and resolving scalability issues.

Develop user interface components for ArcGIS Pro using C# and WPF, work in an agile team, and design software solutions for raster and imagery processing.

You will develop and maintain components of the LLVM based toolchain, collaborating with the community while ensuring platform-specific optimizations and tests.

Designs and develops complex applications, authors technical specs, mentors junior developers, implements UI and backend code, unit tests and debugs, ensures quality/security/compliance, and produces technical documentation.

Develop and optimize ultra-low-latency, high-performance trading infrastructure in modern C++. Implement and tune order execution, market data connectivity, multi-threaded systems, and risk modules. Profile and benchmark real-time systems, collaborate with quants and traders, and maintain robust, fault-tolerant continuous trading operations.