Top Senior Software Engineer Jobs

Design and implement high-performance C++ (C++11) libraries and APIs using STL, Boost, and Qt on Linux. Optimize software for hardware performance and HPC (MPI/OpenMP), extend and integrate with existing internal frameworks, follow prescribed designs, and collaborate within an engineering team. Seismic/geoscience and open-source experience are a plus.

Onsite senior .NET software engineer responsible for full lifecycle application development (60%), maintaining and fixing existing applications (30%), and other tasks (10%). Role requires strong C#, ASP.NET, MVC, JavaScript, Oracle, and Windows server experience. Local Phoenix candidates only; background check required.

Develop, enhance, and deploy high-performance desktop trading applications using C#/.NET and WPF. Collaborate with account management, support, and implementation teams to analyze requirements, refactor for performance, implement architectural standards, and provide day-to-day production support and deployments.

Onsite Senior Software Engineer in Phoenix responsible for full-lifecycle application development (60%), fixing and enhancing existing applications (30%), and miscellaneous tasks (10%). Must clear background check and be a local, authorized U.S. worker.

Develop and migrate Captiva processes (7.1 -> 7.7) using Captiva Designer and .NET. Work with Documentum Content Server, SQL, Java, DQL, and administer Captiva. Support WebSphere/Tomcat, Linux and Windows cluster environments, perform shell scripting, participate in SDLC, design/architecture reviews, and collaborate with global stakeholders.

Design, build, test, debug, and publish iOS mobile applications. Work with cross-functional teams on requirements, design docs, and full development lifecycle. Troubleshoot production issues, generate reports, produce technical documentation, and mentor junior engineers.

Senior software developer responsible for designing, coding, debugging and supporting scalable .NET applications. Must have strong C# and SQL Server experience, REST/SOAP integration knowledge, multi-threading and network programming expertise, and excellent communication and problem-solving skills.

Designs and develops complex, cloud-native software solutions. Defines architecture and technical approach, ensures code quality and performance, mentors junior engineers, collaborates with stakeholders, participates in Agile delivery, and contributes to CI/CD and security practices.

Develop complex C++ and Java applications with multimedia streaming (RTP/RTSP), build Android applications/services, work on Linux, participate across the software development lifecycle, troubleshoot issues, measure performance, and use scripting for automation and tooling.

The Software Engineer 3 will develop custom analytics and tools, collaborating with data scientists and analysts, while focusing on machine learning and big data solutions.

We are seeking a Software Engineer focused on building resilient infrastructure systems for AI drug discovery, enhancing developer productivity and ensuring compliance with biopharma standards.

Own and deliver end-to-end full-stack features for a React frontend and Spring Boot backend. Build/version REST APIs, scale microservices on AWS, optimize PostGIS queries, implement real-time UI updates, support on-call incident response, and mentor engineers.

Lead design and build core backend services and infrastructure for autonomous construction equipment, including fleet management, task orchestration, monitoring, tooling for testing and deployments, and collaboration with frontend, ML, and robotics teams.

Design, develop, test, and maintain software applications for mission-critical systems, ensuring high performance and security in a collaborative environment.

Design, develop, and enhance software products, focusing on scalable data platforms and requiring expertise in various programming and big data technologies.

Design, develop, test, and maintain front-end and back-end components for an enterprise Postgres/Java/React system. Integrate APIs, implement CI/CD and containerized deployments, participate in full SDLC activities, code reviews, architecture sessions, and ensure accessibility and security compliance while collaborating with cross-functional agile teams.

The Senior Software Engineer will develop features end-to-end for an AI-driven platform, enhance customer experience through feedback, and ensure high code quality while collaborating across teams.

Develop and maintain ultra-low-latency trading infrastructure in C/C++ on UNIX. Work across distributed systems, concurrency, OS, networks, and architecture; collaborate on large codebases and trading system components (feed handlers, OMS, order execution).

Lead the design of foundational architecture and implement backend services and APIs for a fast-growing AI-native tax solution.

As a Mid Level Software Engineer, you will develop and enhance software systems, contribute to innovative solutions, and perform testing and design analysis, focusing on RF signal processing and large data set manipulation.

Design, develop, test, and deploy .NET solutions (APIs and web apps). Build and consume RESTful services, work with SQL and NoSQL databases, use cloud (Azure/AWS) and Docker, apply unit/integration/performance testing, participate in code reviews, define features via spikes, and architect scalable, high-performance systems. Support occasional after-hours and on-call rotation.

Design, develop, and maintain software solutions, manage the complete software development process, and collaborate with cross-functional teams to deliver high-quality features.

This role involves leading technical projects, optimizing software performance, mentoring engineers, and enhancing user experiences, with a focus on full stack development.

Design and build internal investigation, review, and enforcement tooling and underlying platform APIs, storage, and services. Integrate LLMs (Claude) to scale human review, implement guardrails (permissions, audit trails, data-access controls), instrument metrics, and partner with policy, operations, legal, privacy, and data science to improve reviewer workflows and safety outcomes.

The Software Engineer Level 4 will develop analytics using various software languages, collaborate with development teams, and oversee analytic approaches across systems.