Top Senior Software Engineer Jobs in Phoenix, AZ

Lead full software development lifecycle: design, develop, test, deploy and maintain reliable distributed applications. Collaborate cross-functionally, perform code reviews and automated testing, and deliver performant technical solutions aligned with business goals.

Develop and integrate system software and RF for avionics (TCAS, transponder, ADS-B, DME). Lead teams to produce SW requirements, DAL A development, verification/validation, flight and lab testing, certification documentation (SSA, FHA, SRTM, MOPS, TSO deviations), and interface with customers and FAA. Use C/C++/Assembly, version control, CI/CD, and engineering tools to manage builds, testing, and hardware-in-the-loop integration.

Design and develop safety-critical real-time embedded software for avionics flight control systems. Implement and debug C/C++ code, work in lab environments, follow DO-178 processes, use DOORS for requirements, and support surveillance/data-collection software (preferred).

The Senior iOS Engineer will lead key engineering decisions, enhance the iOS app, participate in product discussions, and maintain complex app architecture. Responsibilities include shipping production code and supporting user experience improvements.

The Lead Software Engineer will design and develop a secure SaaS product, collaborate with teams, ensure performance standards, participate in code reviews, and engage in the full software development lifecycle, focusing on energy efficiency solutions.

Design and implement production-grade backend services and platform APIs in Go. Build Kubernetes-native components (controllers, operators, CRDs, webhooks), integrate with CI/CD, observability, and security systems, and apply AI/agentic programming to automate platform workflows and improve developer productivity. Troubleshoot distributed systems and participate in architecture reviews.

As a Senior iOS Engineer at Speechify, you'll lead key engineering decisions, ship production code, maintain the app architecture, and enhance user experiences for a growing user base.

Responsible for data collection to support model training, finding audio data sources, operating cloud infrastructure, and collaborating on dataset roadmap.

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.

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.

The Senior Software Engineer at Carvana will drive large-scale projects, develop scalable solutions, collaborate with teams, and mentor junior developers, primarily using C# and JavaScript technologies.

The Senior Full Stack Software Engineer will develop and scale the platform using TypeScript, React, and AWS while collaborating with the engineering team.

Design, build, and maintain blockchain and payments infrastructure; develop scalable microservices and secure RESTful APIs to transfer value across blockchain and banking protocols; integrate with banks and fintech; own system design, testing, deployment, and troubleshooting; ensure reliability, code quality, and strong test coverage while collaborating with product and engineering teams.

Lead design, develop, test, and deploy cloud-native Java/Spring Boot microservices for energy-focused enterprise SaaS. Own architecture, code quality, troubleshooting, observability, integrations (messaging, APIs, databases), and collaborate with QA/DevOps/Product using Agile practices to deliver scalable, production-ready solutions.

The Lead Java Software Engineer will design, develop, and deploy cloud-based enterprise applications, focusing on performance, security, and collaboration with cross-functional teams. The role requires hands-on leadership in the software development lifecycle, code quality, and continuous improvement in a remote environment.

Lead the design and development of robotic automation systems in manufacturing, collaborate with teams, integrate software and hardware, and improve robotic systems.

The role involves leading engineering decisions, shipping production code, enhancing the iOS app architecture, and collaborating on product discussions to enhance user experiences.

Design, develop, modify, and maintain complex C#/.NET applications in an Agile, test-driven environment. Lead architecture and development plans, perform performance and scalability analysis, implement CI/CD and automated testing, mentor engineers, estimate scope/resources, and coordinate with business and cross-functional teams to deliver reliable solutions.

Develop and sustain mission-operational software product lines, create new capabilities, and collaborate across subsystem teams. Work on C++/OO codebases in Red Hat Enterprise Linux, support DevSecOps and test automation efforts, and participate in Agile processes. Requires security clearance and travel (25% and a 4-week training in Redondo Beach).

Design, develop, and deliver scalable software systems and APIs across the full lifecycle. Lead architecture, integrate AI/ML components, implement microservices/serverless and CI/CD, ensure security, observability, and performance, mentor engineers, and collaborate with product and business stakeholders to meet timelines and quality standards.

The role involves backend engineering, supporting the Benefits module, troubleshooting production issues, mentoring junior engineers, and ensuring system reliability.

Design, develop, and test real-time bare-metal firmware and DSP algorithms for mixed-signal ICs; build host-side Python test/demo applications; document designs/APIs; collaborate with hardware, tools, SQA, and field engineers; support customer integration and validation efforts.

The role involves designing, developing, testing, and deploying complex solutions on the Salesforce platform, providing technical leadership, and ensuring solutions meet functional and non-functional requirements.

Design, develop, and maintain secure, scalable APIs and backend services for digital payment experiences. Collaborate with product, UX, and engineering teams to translate requirements into microservices-based solutions; drive architecture, code quality, CI/CD, observability, and operational excellence; mentor engineers and stay current on emerging technologies to improve platforms and customer experiences.

Design, build, and maintain observability infrastructure, developer tooling, and AI-assisted anomaly detection across a 100% AWS microservices platform. Define instrumentation standards, Terraform modules, SLIs/SLOs, and FinOps dashboards; integrate observability into the internal developer platform and drive operational readiness and cost visibility for engineering teams.