Senior Software Engineer FS (LOC)

Ad Hoc LLC is a technology company that empowers organizations to deliver scalable, impactful digital services. The Senior Software Engineer - Full Stack will design, develop, and deploy full stack features, impacting the long-term goals of the program while mentoring junior engineers and ensuring high engineering quality standards.

Responsibilities:

• Design, develop, and deploy full stack features across both server-side components and user-facing interfaces, working in Python, Java, Angular, and AWS services within a cloud-native microservice architecture
• Own end-to-end delivery of complex features from story refinement through production deployment, including API design, data integration, frontend implementation, and automated testing
• Enforce engineering quality standards including mandatory peer code review, SonarQube quality gate compliance, and resolving security findings in-sprint rather than deferring them
• Implement UI designs from Figma specifications using federal Design System components, ensuring WCAG 2.1 AA accessibility standards are met across all frontend work
• Lead technical design discussions, author Architecture Decision Records, and present system diagrams and design documents to engineers, product owners, and federal stakeholders
• Diagnose and resolve production issues across systems you own, using incidents as opportunities to improve system resilience and inform team knowledge
• Actively mentor junior and mid-level engineers, providing code review feedback and guidance that builds technical capability across the team
• Contribute to CI/CD pipeline hygiene, infrastructure-as-code standards via Terraform, and GitLab pipeline optimization
• Participate in technical interviews and candidate evaluations
• May lead small, less critical, or temporary team structures and projects

Requirements:

• 7+ years of relevant engineering experience and a Bachelor's degree, or equivalent additional experience in lieu of a degree
• Must meet federal suitability requirements and pass a background investigation as a condition of employment
• Expert-level proficiency in at least one of: backend engineering (Python, Java), frontend engineering (Angular, JavaScript), or cloud infrastructure (AWS, Terraform)
• Strong working knowledge across the full stack including PostgreSQL, Elasticsearch, containerized microservices, and AWS services (ECS, RDS, S3, Lambda, CloudWatch)
• Proficiency in Angular, HTML/CSS, and JavaScript for frontend development, including implementation of Design System components from Figma specifications
• Experience building and consuming versioned RESTful APIs with published OpenAPI specifications
• Hands-on experience with CI/CD pipelines in GitLab and infrastructure-as-code using Terraform
• Working knowledge of WCAG 2.1 AA accessibility standards and their application across frontend and backend development
• Strong written and verbal communication skills, able to translate technical decisions for non-technical audiences including federal agency stakeholders
• Prior experience with federal agency digital services or government contracting environments
• Experience with event-driven architectures using AWS SNS/SQS and Lambda/Step Functions
• Familiarity with consumer-driven contract testing using Pact or API contract governance across microservices
• Experience with SAFe or scaled Agile delivery frameworks including PI planning and ART coordination
• Exposure to third-party integrations such as Pay.gov, login.gov, or identity/authentication platforms
• Experience mentoring engineers in a cross-functional federal delivery environment