Full-Stack Developer (AWS, TS, React)

Capnexus is a global technology partner delivering end-to-end software solutions for companies across multiple industries, including insurance and fintech. Evolving from Capstone Integrated Solutions, with strong roots in retail software development, we combine deep engineering expertise with a build-as-a-service approach, enabling our clients to design, develop, and scale high-quality digital products efficiently. 

Our teams consist of experienced professionals who specialize in building scalable, cloud-native solutions, with a strong focus on outcomes, delivery, and long-term partnerships. We provide a full spectrum of services including product development, system architecture, integration, implementation, and ongoing support, allowing our clients to rely on a single, dedicated team to drive their technology initiatives forward. 

Who You Are and What You'll Do:  

Capnexus is looking for a Senior Full Stack Engineer to join a high-impact insurance project. You will work within a multinational, diverse team building scalable, cloud-native solutions for a modern insurance platform. 

This role is ideal for an engineer who thrives in serverless environments, enjoys working across the stack, and is comfortable collaborating in a fast-paced, distributed setting.  

Responsibilities: 
 

• Design, develop, and maintain scalable full stack applications using React.js and TypeScript 

• Build and optimize backend services using AWS Lambda (serverless architecture) 

• Develop and integrate APIs using AWS AppSync, GraphQL and WebSockets for real-time features 

• Work with DynamoDB and PostgreSQL for efficient data modeling and storage 

• Collaborate with cross-functional teams (engineering, product, QA) in a distributed, multinational environment 

• Ensure high performance, scalability, and reliability of applications in AWS 

• Contribute to architecture decisions and best practices across the stack 

Qualifications: 

• 5+ years of professional experience in software development 

• Strong hands-on experience with TypeScript and React.js 

• Proven experience building backend services with AWS Lambda (must-have) 

• Solid experience with AWS ecosystem (e.g., API Gateway, AppSync, S3, CloudWatch) 

• Knowledge of Infrastructure as Code (Terraform, CloudFormation) 

• Experience working with DynamoDB and PostgreSQL 

• Experience with real-time technologies (WebSockets or similar) 

• Understanding of serverless architecture and microservices principles 

• Experience with REST and/or GraphQL APIs 

• Familiarity with CI/CD pipelines and Git-based workflows 

• Strong problem-solving skills and ability to work independently in a remote/distributed team 

Nice to Have: 

• Experience with AI tools, AI agents, or LLM integrations (e.g., Qwen or similar) 

• Bachelor’s degree in Computer Science or a related field 

• AWS certifications (e.g., Solutions Architect, Developer Associate, or similar) 

• Experience in insurance domain 

 

 

“Our Culture”:  

At Capnexus, the central principles that we all adhere to, and t