Sr. Software Engineer - Back-End Serverless Developer (U.S. Remote - Occasional Office Visits Required)

Unison is a company that powers the business of government with AI-infused software, helping federal processes run smoother and smarter. They are seeking a skilled Back-End Serverless Developer proficient in AWS-based application development and modern API architectures to design and maintain GraphQL APIs and collaborate with cross-functional teams.

Responsibilities:

• Design, develop, and maintain GraphQL APIs using Typescript with AWS API Gateway, Lambda and DynamoDB
• Develop and maintain infrastructure as code using AWS CDK and AWS SDK
• Deploy releases and hotfixes to production environments
• Debug issues in production or development environments
• Write unit/integration tests as part of each feature/bug fix
• Collaborate cross-functionally with front-end engineers and product stakeholders to deliver robust and maintainable systems
• Apply AWS best practices for security, performance, monitoring, and cost optimization
• Participate in code reviews, contribute to engineering standards, and support continuous improvement across the team

Requirements:

• 5+ years of professional experience in back-end software development
• Strong proficiency with TypeScript
• Knowledge of GraphQL and schema design
• Experience with AWS DynamoDB, API Gateway, Lambda, and Event Bridge
• Solid understanding of distributed systems, API design, Serverless architecture, and Database design
• Experience with CI/CD pipelines and version control workflows
• Able to perform root cause analysis on issues within the application
• Experience working in Agile/Scrum environments with cross-functional teams
• DynamoDB Single Table Design
• OpenSearch
• Amazon SageMaker for ML model deployment and integration
• AWS CodePipeline for CI/CD automation
• Test Driven Development (TDD)
• FedRAMP or other certification knowledge