Sr. Software Engineer - Back-End Serverless Developer (U.S. Remote)

Overview About Unison: Unison's products power the business of government to work smoother and smarter, making critical federal processes and acquisitions simpler and more effective. Trusted by over 200,000 federal employees and government contractors, our AI-infused software and deep domain expertise help contract shops, cost engineers, 1102s, program managers, and budgeting professionals cut through friction, keep compliance airtight, and sharpen decisions. Our federal focus brings efficiency, transparency, and clarity to complex data, regulations, and workflows, empowering agencies and executives to spend more minutes on mission and achieve strategic objectives. Unison is how federal business gets done. Role Overview: We are seeking a skilled Back-End Serverless Developer with strong experience in Serverless AWS-based application development and modern API architectures. The ideal candidate is proficient in TypeScript, GraphQL, AWS Serverless, Infrastructure as Code (IaC), and DevOps. Responsibilities 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. Qualifications Qualifications: • 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 Preferred Knowledge (Nice-to-Have): • 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 What We're Looking For: • Someone who is detail-oriented and comfortable taking ownership of features from design to deployment. • A developer who enjoys solving complex architecture challenges in a cloud-first environment. • A collaborative team member who values quality, reliability, and maintainable code. • A team member that reflects our foundational behaviors: Client service, flexibility, respect, stewardship, commitment, initiative, and teamwork. Why Join Unison: Unison has pioneered the creation of innovative software for federal agencies, program offices, and government contractors worldwide. We believe that there is power in moving in unison. Our culture and values reflect this belief and are central to achieving our mission of powering the business of government. Rather than chasing short-lived tech trends, Unison delivers proven software that simplifies the complexities of federal business. Our technology combines innovative thinking with precise federal know-how, addressing critical details others overlook. Designed with purpose and engineered to endure, our software provides consistent performance, allowing federal agencies and contractors to stay focused on their missions. Unison provides equal employment opportunities to all employees and applicants for employment without regard to race, color, national origin, sex, gender identity, sexual orientation, religion, disability status, age, genetics, veteran status, or any other characteristic protected by federal, state, or local laws. Apply tot his job