Senior Full Stack Developer (Hybrid)

Cigna Healthcare•Newton, MA

3d•$130,200 - $217,000•Hybrid

About The Position

The Senior Full Stack Developer will design and build scalable, cloud-native applications that improve user experiences and support evolving business needs. This hands-on role spans the full technology stack, including front-end experiences, APIs, microservices, AI-driven services, and data. The developer will solve complex problems, explore new technologies, and help teams build reliable software at speed. The role involves developing on AWS and working with technologies including Go, React, TypeScript, .NET, Python, and AI-enabled technologies. The developer will collaborate with business and technical teams, contribute to architecture and technical decisions, and participate throughout design, development, deployment, and support. The position is hybrid; for occasional or permanent work from home, a cable broadband or fiber internet connection with at least 10 Mbps download and 5 Mbps upload is required. The anticipated annual salary range is $130,200–$217,000, depending on relevant factors including experience and geographic location. The role is also anticipated to be eligible for an annual bonus plan.

Requirements

Bachelor’s degree in Computer Science or a related field.
At least 8 years of hands-on software engineering experience, including full-stack application development.
At least 5 years of experience developing and implementing AI-driven services.
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 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.

Nice To Haves

Experience developing software within Agile environments.
Experience using test-driven development, CI/CD, source control, and peer code reviews.
Strong communication skills and ability to work effectively with technical and non-technical stakeholders.
Ability to balance strategic thinking with attention to detail in a fast-moving environment.

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.
Help Agile teams solve complex technical problems and continuously improve.
Troubleshoot issues through triage, root cause analysis, and implementation of solutions.
Independently manage development efforts while collaborating across cross-functional teams.