Senior Full Stack Software Engineer (Technical Lead) LOC 811

Ad Hoc LLC is a technology company that empowers organizations to deliver scalable, impactful digital services. They are seeking a Senior Full Stack Software Engineer (Technical Lead) to serve as a senior technical contributor and engineering leader, combining hands-on software development with technical leadership and mentorship within a cross-functional delivery team.

Responsibilities:

• Lead the design, development, and deployment of complex frontend and backend solutions within a cloud-native microservice architecture
• Provide technical leadership across engineering initiatives, helping teams break down work, identify risks, evaluate tradeoffs, and deliver against program goals and timelines
• Facilitate technical design discussions, author Architecture Decision Records (ADRs), and present system designs and recommendations to engineers, product owners, and federal stakeholders
• Serve as a mentor and coach for junior and mid-level engineers through code reviews, pair programming, technical guidance, and knowledge-sharing activities
• Establish and reinforce engineering best practices, including peer code reviews, testing standards, accessibility requirements, security compliance, and maintainable software design
• Build and consume RESTful APIs using versioned OpenAPI specifications while contributing to backend services, frontend applications, and system integrations
• Enforce engineering quality standards, including SonarQube quality gate compliance, automated testing, and remediation of security findings within development cycles
• Partner closely with product managers, designers, delivery leads, and stakeholders to align technical solutions with customer and business objectives
• Drive continuous improvement initiatives across software engineering processes, tooling, CI/CD pipelines, infrastructure automation, and team workflows
• Diagnose and resolve complex production issues while leading root-cause analysis efforts and implementing long-term improvements to reliability and performance
• Contribute to infrastructure-as-code standards, Terraform automation, GitLab pipeline optimization, and cloud modernization efforts
• Support technical hiring activities through interviews, candidate assessments, onboarding, and engineering team development
• Act as a technical lead for project workstreams, feature teams, or temporary delivery teams, coordinating engineering efforts and helping ensure successful delivery outcomes

Requirements:

• 7+ years of relevant software 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
• Strong experience building and supporting modern full stack applications, including frontend and backend development responsibilities
• Expert-level proficiency in backend technologies such as Python or Java
• Strong frontend development experience with Angular, JavaScript, TypeScript, HTML, and CSS
• Experience building and consuming versioned RESTful APIs with published OpenAPI specifications
• Strong working knowledge of PostgreSQL, Elasticsearch, and modern data integration patterns
• Hands-on experience with containerized microservices and AWS cloud services, including ECS, RDS, S3, Lambda, and CloudWatch
• Experience with CI/CD pipelines using GitLab and source control management using Git
• Working knowledge of WCAG 2.1 AA accessibility standards and their application within digital products
• Strong written and verbal communication skills, including the ability to explain technical concepts and decisions to non-technical audiences and federal stakeholders
• Prior experience supporting federal civilian agencies or government digital services programs
• Experience with infrastructure-as-code using Terraform
• Familiarity with event-driven architectures utilizing AWS SNS, SQS, Lambda, and Step Functions
• Experience with consumer-driven contract testing, API governance, or distributed microservice architectures
• Exposure to SAFe or scaled Agile delivery frameworks, including PI Planning and ART coordination
• Experience integrating with platforms such as Login.gov, Pay.gov, identity providers, or authentication services
• Proven experience mentoring engineers and leading technical initiatives within cross-functional delivery teams