Top Senior Software Engineer Jobs in Tucson, AZ

Design, develop, and field high-performance Ground Control Station and C2 software using C++/Qt/QML and QGroundControl. Lead architecture and technical direction, mentor engineers, define APIs/ICDs, debug integration/latency issues, support field tests, implement post-mission debrief tools, and ensure interoperability with C2 standards.

Design and implement Wi‑Fi 6 (802.11ax) and 802.11s mesh networking software for enterprise access points. Develop HMAC components, optimize throughput/latency/airtime, integrate on NXP-based Embedded Linux platforms, maintain hostapd/wpa_supplicant/mac80211, debug with packet captures, and collaborate with RF/firmware/QA teams for product releases.

Build and maintain scalable, high-performance web applications and data-visualization platforms using React, Redux, Vite, and TypeScript. Collaborate with cross-functional teams to design features, write clean code and tests, debug, contribute to APIs, mentor junior engineers, and apply modern development practices including CI/CD and accessibility considerations.

The Senior Staff Software Engineer will architect Affirm's lakehouse analytics platform, lead data governance efforts, mentor engineers, and collaborate across teams to optimize data solutions using Snowflake and other big data tools.

As a Senior Software Engineer, you will enhance core communication systems by developing features across the stack and integrating with third-party services, ensuring reliability and scalability while debugging production issues.

As a Senior Software Engineer on the Data Platform team, you'll enhance the data infrastructure, develop ETL pipelines, maintain data quality, collaborate across teams, and mentor junior engineers.

The Senior Software Engineer will drive the retail technology initiatives at Toast, focusing on payment solutions and enhancing customer experiences. Responsibilities include collaborating on high-impact opportunities, technical decision-making, and adapting to customer needs.

The Sr. Software Engineer designs, implements, and maintains scalable cloud services, contributes to team processes, and acts as a subject matter expert while leading projects and mentoring others.

The Senior Software Engineer for Support AI will develop voice and chat systems for customer support, driving projects from concept to production, while collaborating across teams and improving AI capabilities through integration and data insights.

The Cloud Software Engineer will design and operate distributed systems for ClickHouse's Observability platform, ensuring reliability and efficiency while working with various engineering and infrastructure teams.

Develop and maintain ClickHouse Cloud interfaces and dashboards, collaborating with multi-disciplinary teams to enhance user experience and system reliability.

Design and maintain high-quality software solutions for an eCommerce platform, focusing on back-end systems and collaborating with various teams.

Design and build applications using Python, manage component design, optimize performance, and collaborate with clients on innovative products.

Design and build agent-powered mission consoles, collaborate with stakeholders to improve user workflows, and maintain agentic workflows for mission outcomes.

As a Senior Software Engineer, you will design and build a cutting-edge identity search platform and implement AI systems for defense applications, working closely with cross-functional teams to enhance user workflows and support national security.

The Engineering Manager for Developer Productivity will lead a remote team to enhance developer productivity, focusing on AI integration, tooling evaluation, and team development while collaborating with cross-functional partners.

Join as an early founding full-stack engineer to architect, build, and deploy a scalable platform serving AI-driven voice applications. You will own frontend and backend development, design infrastructure with the CTO, and deliver reliable production systems for enterprise customers.

Lead development of a new iOS mobile product: implement LiDAR/AR scanning, floor-plan rendering, offline-first sync with FastAPI backend, prototype visualizations, integrate backend/ML work, and own subsystems end-to-end on a small, fast-moving team using AI coding agents.

As a Software Engineer, you will build features, improve the product development cycle, and ensure code quality while collaborating with teams and solving complex problems.

Designs, develops, and deploys AI-driven, cloud-native applications on Azure. Builds RAG knowledge systems, AI agents, secure APIs, and orchestrated workflows using C#, .NET, Azure services, Docker, and CI/CD. Collaborates with stakeholders, ensures observability and security, supports production incidents, and provides documentation and knowledge transfer.

Design and implement cloud solutions for clients, leading teams, solving technical challenges, and utilizing modern technologies like Kubernetes and AI.

The Senior Software Engineer will enhance efficiency in procurement for the Department of War by developing web applications, managing technical delivery, and mentoring team members.

Design, scope, and implement scalable full‑stack ecommerce solutions. Improve platform performance and usability, collaborate with Product and Design, run experiments, ship features, and ensure seamless integration across the product ecosystem.

The Senior Software Engineer will lead projects for the Forms platform, designing and building features across web, mobile, and backend systems while mentoring other engineers and improving platform scalability and reliability.

The Staff Software Engineer will lead technical strategy, ensure system availability, and develop backend systems at scale, collaborating across teams to drive capacity modeling and operational quality.