Top Senior Software Engineer Jobs in Tucson, AZ

Lead the technical vision for complex systems, drive architectural strategies, write production-ready code, and align teams for public sector compliance.

The role involves designing and building backend services for mobile app user acquisition, focusing on microservices, data pipelines, optimization, and collaboration with data scientists on ML integration.

Design, build, and scale backend services, APIs, and integrations powering student-university interactions. Own reliability, performance, security, automation, ETL/ingestion, and CI/CD. Collaborate cross-functionally, mentor teammates, and influence product direction while operating in cloud-native, distributed microservices environments.

Design, develop, secure, and deploy high-scale resilient software and web applications. Participate in all SDLC phases, support cloud (AWS) deployments, resolve escalated support issues, and ensure compliance with corporate/security policies while working on global and government-targeted environments.

Design, develop, test, and maintain scalable front-end and back-end services and APIs. Lead technical design, perform code reviews, troubleshoot production issues, document systems, implement automated tests, and collaborate with cross-functional teams to deliver reliable shipping infrastructure.

Lead design, development, and verification of avionics tools; provide technical leadership, mentor teams, drive RCCA and Lean methods, collaborate cross-functionally, and develop/maintain software (primarily C# and Python) for commercial and military programs.

As a Full Stack Software Engineer, you will develop and maintain robust backend systems using Ruby on Rails, collaborating with cross-functional teams to enhance the real estate platform's performance and user experience.

Build and maintain end-to-end features across frontend and backend; collaborate with product, operations, sales, and marketing; scope, prototype, test, deploy, and maintain services; write maintainable code and exhaustive tests; participate in code reviews; mentor teammates; estimate and prioritize work; operate effectively in an asynchronous remote environment.

As a Staff Software Engineer on the Developer Platform team, you will enhance CI/CD pipelines, improve developer experience, and productionize AI tooling while mentoring teammates and collaborating with engineering leaders.

Design, build, and improve Elasticsearch distributed-systems components for scalable, concurrent, and consistent indexing. Maintain cluster coordination for performance and resilience, push system scale limits, investigate performance and concurrency issues, support operations/support engineers, and lead projects involving multiple engineers from design through delivery.

Design, build, and optimize scalable Java-based microservices and RESTful APIs. Ensure performance, uptime, and engineering standards through design and code reviews, testing, and collaboration with product and support teams. Contribute to domain-driven service design and API consistency.

Lead design, development, and maintenance of scalable backend services for Payouts. Drive architecture, ensure performance and reliability, mentor engineers, enforce engineering best practices, and collaborate with product and support teams to deliver customer-facing REST APIs.

Lead the design and development of Pinecone's API and interfaces for AI agents, focusing on automation and observability while collaborating with cross-functional teams.

Volunteer senior engineer to develop a cross-platform medical/wellness app (web, iOS, Android). Own full SDLC: design, coding, testing, data models, pipelines, deployments, and collaborate in Agile processes. Attend weekly standups and commit at least 4 hours weekly.

The Senior Software Developer II - Full Stack will design and develop scalable systems, leading projects while mentoring junior staff and engaging with stakeholders. The role emphasizes technical leadership, problem-solving in software development, and innovative processes in cloud and AI technologies.

Design and maintain core components of Docker Desktop, improve installation and update processes, ensure system reliability, and collaborate across teams.

Serve as an embedded Linux expert on customer projects: design and refactor real-time architectures, develop Linux kernel drivers, debug low-level hardware/software issues, optimize kernel performance, collaborate with customers and internal teams, lead technical efforts, produce high-quality deliverables, and create technical proposals to support product lifecycle and certification.

The Senior Software Engineer will design and maintain MediaWiki's backend components, ensuring quality and operational excellence across the platform while mentoring team members and aligning with WMF strategies.

Design, develop, and operate scalable, low-latency backend Guidance services for navigation. Solve complex guidance scenarios, build customizable solutions for OEMs and niche customers, and create tooling and AWS-based infrastructure to support mapping and navigation features.

Develop, design, and maintain production software for autonomous mission management of a satellite constellation. Contribute to architecture, implement scalable algorithms in Python and Go, support production operations, on-call rotations, launches, and cross-team integration for automated constellation operations.

Frontend-focused senior software engineer to lead and implement Search features in a high-traffic React/TypeScript app. Collaborate with backend, product, and design to build end-to-end features, optimize UX and performance, work with mapping/data visualizations, and participate in architecture, on-call rotations, and mentoring.

Lead design, development, and maintenance of SmithRx frontend features using JavaScript and React while ensuring high-quality code and scalability. Collaborate with product teams and mentor junior engineers.

Design and implement scalable Salesforce solutions, lead development teams, manage integrations, and mentor junior developers while ensuring security and compliance standards are met.

The Senior Software Engineer will design and maintain scalable applications for Loan Origination and Servicing, focusing on backend architecture and system design to enhance decision-making and workflows.

Design and build AI-augmented test tooling and automated test infrastructure across mobile, web, and backend. Integrate testing into engineers' workflows (IDE, CI, monitoring, chatops), define quality gates, instrument AI usage and costs, ensure secure handling of PHI, and produce reusable libraries, documentation, and training to help teams adopt automated quality workflows.