Harmonia Holdings Group, LLC

About the Company

Harmonia is a rapidly growing company that delivers powerful advanced technologies to help federal government clients harness the power of data to ensure mission success. Harmonia's growth has been fueled by a skilled, technical employee base that delivers differentiated solutions for AI and machine learning, cybersecurity, cloud optimization, IT modernization, and data science and analytics. Harmonia proudly supports federal customers in the National Security, Federal Civilian, and Federal Health markets. Harmonia offers competitive compensation and a dynamic, productive work environment. Benefits include comprehensive medical, dental, vision, and life insurance options, 401(k) matching, and flexible PTO.

Listed Jobs

Company Name

Harmonia Holdings Group, LLC

Job Title

Senior Full Stack Web Developer

Job Description

**Job Title:** Senior Full Stack Web Developer **Role Summary** Lead full stack development for scalable, secure, cross-platform web applications. Collaborate in Agile teams to troubleshoot complex systems and optimize performance while interfacing with stakeholders to deliver cloud-based solutions. **Expectations** Bachelor’s degree in Computer Science or related field (or 8 years’ equivalent experience). Minimum 7 years’ front-end/back-end development experience. AWS cloud application development (2+ years Angular/React, 4+ years advanced programming languages). Active government clearance required. **Key Responsibilities** - Design, develop, test, and integrate web applications using RESTful APIs and cloud services (AWS). - Build scalable, high-performance AWS cloud-based applications. - Collaborate with teams to implement Agile methodologies for continuous improvement. - Optimize web application speed, scalability, and user experience. - Develop front-end (HTML/CSS/JS, Angular/React) and back-end microservices. - Interface with stakeholders to refine requirements and improve system functionality. - Resolve technical design, implementation, or performance challenges. **Required Skills** - AWS CloudFormation/Infrastructure as Code. - AWS services (Lambda, API Gateway, S3, CloudFront, WAF). - Advanced programming languages (Java, Python, Node.js). - Web services/APIs (SOAP/REST). - SQL database proficiency (PostgreSQL preferred). - Mock unit/integration testing. - Agile development (Scrum/Kanban). - CI/CD tools (AWS Fargate preferred). **Required Education & Certifications** Bachelor’s degree in Computer Science or 8 years’ equivalent work experience. Active Public Trust, Secret, Top-Secret, or equivalent U.S. government clearance.

Mclean, United states

Hybrid

Senior

14-09-2025