Senior Full Stack Developer- Senior Advisor

Cigna Health and Life Insurance Company; Newton (MA); Remote; USD 130,000 - 217,000; Full time

Benefits offered by this job

Health benefits

401(k)

Paid time off

Job summary

The Cigna Group is seeking a senior full-stack software engineer in the United States to drive AI-enabled delivery of scalable, cloud-native applications. You will partner with business and technical teams to advance best practices, design robust REST APIs and microservices, and apply event-driven patterns to support rapid growth.

You will own hands-on development across Go, React, TypeScript, .NET and Python, maintain high observability, and mentor teams within an Agile environment.

Qualifications

• 8+ years of software engineering experience.
• Full-stack hands-on engineering experience.
• Experience with AI-driven services.

Responsibilities

• Collaborate with business and technical partners to implement software engineering best practices.
• Develop scalable, high-performance applications with strong observability and reliability.
• Architect REST APIs and microservices using Go, React, TypeScript, .NET and Python.
• Apply event-driven patterns and evaluate tradeoffs for optimal solutions.
• Lead and participate in Agile development, CI/CD and proof-of-concept initiatives.

Skills

Go

React

TypeScript

.NET

Python

AWS

Git

Education

Bachelor’s degree in computer science

Tools

GitHub

GitLab

CI/CD

AWS

Job description

Job Description and Responsibilities: Demonstrate a startup mindset by adapting quickly, driving innovation, and executing with speed to deliver impactful solutions. Collaborate with business and technical partners to implement software engineering best practices that reduce risk and promote reusability. Serve as a full-stack engineer, leveraging AI-driven productivity tools including spec-driven development and modern coding approaches-to accelerate delivery and improve code quality. Contribute to concept development, architecture refinement, and software design aligned with the organization’s strategic technology objectives. Develop scalable, high-performance applications with strong observability to ensure reliability and operational efficiency. Deliver high-quality, customer-focused software that enables exceptional user experience. Architect solutions using diverse technologies and data stores applying event-driven patterns and evaluating tradeoffs to recommend optimal approaches. Act as a hands-on contributor within Agile development teams; support design, development, deployment, and maintenance activities. Lead and support proof-of-concept initiatives for new tools, technologies, and frameworks, fostering innovation and experimentation. Build and deliver cloud-native solutions, including REST APIs and microservices architectures, designed to scale with evolving business needs. Maintain deep involvement in implementation to ensure technical excellence and alignment with design objectives. Identify design challenges and deliver effective, scalable solutions while making informed user experience and functionality decisions. Drive transformation initiatives and continuous improvement efforts to enhance processes and promote a culture of innovation. Participate in collaborative concept definition, architectural refinement, software design, and realization of products that support the strategic technology needs of the organization. Build scalable, high-performance applications with strong observability, ensuring systems are reliable and efficient. Function as a hands-on member of a development team, and guide the team in designing, developing, deploying, and maintaining processes using Agile methodologies. Design and conduct proof of concepts for new software tools, technologies, and frameworks, encouraging creative problem-solving and experimentation. Maintain deep levels of involvement in the implementation process. Key Responsibilities & Experience Analyze project documentation to translate business requirements into technical specifications Gather and refine project requirements in collaboration with stakeholders Assess and estimate development timelines and deliverables Develop and implement code using Test-Driven Development (TDD) and Continuous Integration (CI) practices Design and develop scalable applications using modern technologies, including Go, React, TypeScript, .NET, and Python Manage and optimize large-scale datasets, with a focus on performance and efficiency Utilize caching strategies and work with distributed, relational, NoSQL, and vector databases Architect, deploy, and maintain cloud-based solutions leveraging AWS Employ Git, GitHub, and GitLab for source control, collaboration, and peer code reviews Requirements 8+ years of software engineering experience 8+ years in a full-stack hands on engineering experience 5+ years of experience developing and implementing AI-driven services Demonstrated experience working in a startup environment Proven experience operating within Agile development environments Strong background in cloud-native solutions, REST APIs, and microservices architecture Technical & Functional Skills Strong understanding of object-oriented design and development Ability to independently manage development efforts while collaborating across cross-functional teams Demonstrated ability to balance strategic thinking with strong attention to detail Experience partnering with stakeholders to define requirements and translate them into technical solutions Core Competencies Excellent communication skills, with the ability to engage both technical and non-technical stakeholders Strong troubleshooting capabilities, including issue triage, root cause analysis, and solution implementation Ability to thrive in fast-paced, dynamic environments High attention to detail with a commitment to delivering quality software Effective time management and prioritization skills Education Bachelor’s degree in computer science or a related field 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. For this position, we anticipate offering an annual salary of 130,200 - 217,000 USD / yearly, depending on relevant factors, including experience and geographic location. This role is also anticipated to be eligible to participate in an annual bonus plan. At The Cigna Group, you’ll enjoy a comprehensive range of benefits, with a focus on supporting your whole health. Starting on day one of your employment, you’ll be offered several health-related benefits including medical, vision, dental, and well-being and behavioral health programs. We also offer 401(k), company paid life insurance, tuition reimbursement, a minimum of 18 days of paid time off per year, paid holidays, and leaves of absence. For more details on our employee benefits programs, click here. About The Cigna Group Doing something meaningful starts with a simple decision, a commitment to changing lives. At The Cigna Group, we’re dedicated to improving the health and vitality of those we serve. Through our divisions Cigna Healthcare and Evernorth Health Services, we are committed to enhancing the lives of our clients, customers and patients. Join us in driving growth and improving lives. Qualified applicants will be considered without regard to race, color, age, disability, sex, childbirth (including pregnancy) or related medical conditions including but not limited to lactation, sexual orientation, gender identity or expression, veteran or military status, religion, national origin, ancestry, marital or familial status, genetic information, status with regard to public assistance, citizenship status or any other characteristic protected by applicable equal employment opportunity laws. If you need a reasonable accommodation to complete the online application process, please email [e-mail] for assistance. Please note that this email inbox is dedicated to accommodation requests only and cannot provide application updates or accept resumes. The Cigna Group has a tobacco-free policy and reserves the right not to hire tobacco/nicotine users in states where that is legally permissible. Candidates in such states who use tobacco/nicotine will not be considered for employment unless they enter a qualifying smoking cessation program prior to the start of their employment. These states include: Alabama, Alaska, Arizona, Arkansas, Delaware, Florida, Georgia, Hawaii, Idaho, Iowa, Kansas, Maryland, Massachusetts, Michigan, Nebraska, Ohio, Pennsylvania, Texas, Utah, Vermont, and Washington State. Qualified applicants with criminal histories will be considered for employment in a manner consistent with all federal, state and local ordinances. Doing something meaningful starts with a simple decision, a commitment to changing lives. At The Cigna Group, we’re dedicated to improving the health and vitality of those we serve. Through our divisions Cigna Healthcare and Evernorth Health Services, we are committed to enhancing the lives of our clients, customers and patients. Join us in driving growth and improving lives.