> Markdown version of [/jobs/ext/3894415-senior-full-stack-developer-hybrid](https://www.wearedevelopers.com/jobs/ext/3894415-senior-full-stack-developer-hybrid). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Full Stack Developer (Hybrid) - **Company:** Cigna - **Location:** Newton, MA, United States (Remote available) - **Experience:** Expert - **Salary:** $130,200.0 - $217,000.0 - **Contract:** Permanent contract - **Skills:** .NET Framework, Application Programming Interfaces (APIs), Agile Methodology, Artificial Intelligence, Amazon Web Services, Applications Architecture, Automation of Tests, Cloud Computing, Software Quality, Code Review, Continuous Integration, Data Systems, Integrated Development Environments, Internet Service Provider, Python (Programming Language), NoSQL, Object-Oriented Software Development, Software Engineering, Software Systems, TypeScript, Test-Driven Development (TDD), Spring Cloud, ReactJS, Build Management, Information Technology, Restful APIs, Software Version Control, Golang, Microservices - **Published:** October 23, 2026 - **Apply:** https://www.techcareers.com/job.asp?id=3466759103&tx=FL535FFL&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role * Bachelor's degree in Computer Science or a related field. * 8+ years of hands-on software engineering experience, including full-stack application development. * 5+ years of experience developing and implementing AI-driven services. * Experience working in a startup or similarly fast-paced development environment. * Strong experience developing cloud-native solutions, REST APIs, and microservices. * Experience partnering with business and technical stakeholders to translate requirements into technical solutions. * Strong troubleshooting skills, including issue triage, root cause analysis, and solution implementation. * Ability to independently manage development efforts while collaborating across cross-functional teams., * Experience developing software within Agile environments. * Strong understanding of object-oriented design and development. * Experience with AWS and technologies such as Go, React, TypeScript, .NET, and Python. * Experience working with distributed, relational, NoSQL, and/or vector databases. * Experience using test-driven development, CI/CD, source control, and peer code reviews. * Strong communication skills with the ability to work effectively with both technical and non-technical stakeholders. * Ability to balance strategic thinking with attention to detail in a fast-moving environment. If you will be working at home occasionally or permanently, the internet connection must be obtained through a cable broadband or fiber optic internet service provider with speeds of at least 10Mbps download/5Mbps upload. ## Description Join a team focused on turning innovative ideas into real-world solutions. As a Senior Full Stack Developer, you'll design and build scalable, cloud-native applications that deliver better user experiences and support evolving business needs. You'll work across the full technology stack, from modern front-end experiences to APIs, microservices, AI-driven services, and data. This is a hands-on role for an experienced engineer who enjoys solving complex problems, exploring new technologies, and helping teams build reliable software at speed. Responsibilities * Build scalable, reliable full-stack applications that deliver strong user experiences. * Develop modern solutions using Go, React, TypeScript, .NET, Python, and AI-enabled technologies. * Design and build cloud-native solutions on AWS, including REST APIs and microservices. * Partner with business and technical teams to turn requirements into practical software solutions. * Help shape application architecture, technical design, data solutions, and technology decisions. * Use automated testing, continuous integration, source control, code reviews, and modern development practices to improve software quality and delivery. * Stay hands-on throughout design, development, deployment, and support while helping Agile teams solve complex technical problems and continuously improve.