Job Title: Full Stack Developer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * The Opportunity: We are seeking a motivated Full Stack Developer to join our IT software development team. This is a hands-on technical role focused on building and maintaining modern web applications in an AWS cloud environment. The ideal candidate is someone who enjoys coding, problem-solving, and working with cutting-edge technologies rather than managing or directing others. Responsibilities: • Design, develop, and maintain full stack web applications from frontend to backend • Write clean, efficient, and well-documented code • Build and integrate RESTful APIs and microservices • Implement responsive and intuitive user interfaces • Deploy and maintain applications in AWS cloud infrastructure • Collaborate with team members on code reviews and technical discussions • Troubleshoot and debug applications across the entire stack • Participate in agile development processes (sprints, standups, retrospectives) • Stay current with modern development practices and emerging technologies Qualifications: Required: • 5-7 years of professional software development experience • Proven experience building full stack web applications and seeing them through from development to production deployment. • Hands-on experience with cloud platforms, particularly AWS Technical Skills: • Frontend: Proficiency in modern JavaScript frameworks (React, Vue.js, or Angular) • Backend: Strong experience with at least one modern backend language/framework: o Node.js/Express o Python/Django/Flask/Go o Java/Spring Boot o C#/.NET Core • Database: Experience with both SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, DynamoDB) databases • AWS Services: Familiarity with core AWS services (EC2, S3, Lambda, RDS, etc.) • Version Control: Proficient with Git and collaborative development workflows • API Development: Experience building and consuming RESTful APIs • DevOps Basics: Understanding of CI/CD pipelines, containerization (Docker), and automated testing Soft Skills: • Strong problem-solving and analytical abilities • Self-motivated with ability to work independently • Good communication skills for team collaboration • Eagerness to learn new technologies and adapt to changing requirements • Attention to detail and commitment to code quality Desired: • Active Secret or Top-Secret clearance • T5 level background investigation (possesses or must be able to obtain) • Bachelor's degree in Computer Science, Software Engineering, or related field (or equivalent experience) • Experience with Infrastructure as Code (Terraform, CloudFormation) • Knowledge of containerization and orchestration (Docker, Kubernetes, ECS) • Familiarity with serverless architecture (AWS Lambda, API Gateway) • Experience with modern frontend build tools (Webpack, Vite) • Understanding of security best practices and OWASP principles • Experience with Agile/Scrum methodologies • Exposure to TypeScript • Knowledge of automated testing frameworks (Jest, Pytest, JUnit, etc.) This position is contingent on funding and may not be filled immediately. However, this position is representative of positions within CACI that are consistently available. Individuals who apply may also be considered for other positions at CACI. What You Can Expect: A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation. An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality. A focus on continuous growth. Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy. Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. Since this position can be worked in more than one location, the range shown is the national average for the position. The proposed salary range for this position is: $98,500-$206,800 CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

• Own the design construction, development, testing, implementation, and technology delivery for business needs throughout the company • Responsible for technical aspects of the entire process of agile development for large complex projects • May supervise or coordinate activities of other personnel as necessary within Agile development cycle • Design, code/develop, test, and implement complex systems • Design solutions to solve complex business problems, considering operational and functional aspects of the solution demonstrating an in-depth understanding of the business function and related functions • Define solution scope to deliver early business value • Ensure objectives are clear to all team members • Lead and monitor the work of other development staff • Mentor Software Engineers to allow for skill/knowledge development through advice, coaching, and training opportunities • Utilize advanced technical knowledge to influence GTS system architecture and future technological vision • Drive constructive change, simplifying and improving the performance of critical systems, improving maintainability, and providing leadership

• Define and own the product vision, strategy, and roadmap for Clinical AI tools with no PM layer above you. • Architect, implement, and continuously improve the RAG infrastructure powering clinical decision support. • Design and iterate on prompt strategies, system instructions, and guardrails to produce reliable, clinically appropriate outputs. • Deploy and maintain scalable, HIPAA-compliant AI infrastructure on AWS. • Work with healthcare data sources and integrate AI outputs into clinical workflows. • Own the relationship with clinicians and clinical operations directly with no PM intermediary. • Partner with backend and frontend engineers to integrate AI capabilities into the broader product. • Actively track developments in applied AI research and bring relevant advances to bear on the product. • Translate technical AI concepts for clinical and operational stakeholders and write actionable documentation.

Harmonia Holdings Group, LLC is an award-winning, rapidly growing federal government contractor committed to providing innovative, high-performing solutions to our government clients and focused on fostering a workplace that encourages growth, initiative, creativity, and employee satisfaction. Title: Junior Full Stack Developer Location: Remote Terms: Full-time Clearance: Qualified candidates must be US citizens and have a minimum of a Public Trust clearance At Harmonia, we believe that our people are our greatest asset. We cultivate a dynamic workplace that encourages professional growth, initiative, and creativity while prioritizing employee engagement and satisfaction. By fostering a culture of collaboration and continuous improvement, we not only attract and retain top talent but also drive meaningful outcomes for the agencies we serve. Our commitment to excellence, innovation, and a thriving employee experience allows us to consistently exceed expectations, making Harmonia a trusted partner in advancing critical government missions. Harmonia is seeking a Junior Full Stack Developer to join our team. Responsibilities: - Will be part of a fast-paced Agile DevOps team contributing and collaborating within your scrum team continuously. - Partake in analysis of software requirements and architect solutions. - Perform analysis, design, coding, testing, implementation, and maintenance of software solutions. - Provide Full Stack software development support for User Interfaces, REST APIs, Data Access Layers. - Ensure software developed passes and completes stages within the CI pipeline. Requirements: - Qualified candidates must be US citizens and have a minimum of a Public Trust clearance - Bachelor's degree in Computer Science, Information Technology Management or Engineering, or other comparable Certifications or experience. - Minimum of 2 years of experience in the Information Technology field focusing on development projects, DevSecOps and application development specifically. - Strong development & design experience (at least 1 year) deploying enterprise applications on AWS· - Experience in large-scale, high-performance enterprise big data application development on complex heterogeneous environments in AWS. - Experience with Java Spring Boot and JPA. - Experience with Frontend UI development with JavaScript frameworks such as jQuery, React, Angular, Vue. - Experience with developing data access layers with Database schemas using JPA. - Experience in Web Based Full Stack Development. - Experience developing in a Docker and Docker Compose environment. - Experience writing automated test such as unit, integration, functional, 508, performance, and end-to-end. - Experience developing in environments that utilize CI/CD tools for build, test, secure and deploy. - Excellent communication skills. - Strong analytical and creative problem-solving skills. - Must be a U.S. Citizen. - Must have a minimum of a Public Trust clearance. Desired Qualifications: - Experience working with AWS tools and environments. - Experience developing in a microservices architecture. - Automated Test-Driven Development (ATDD) frameworks Selenium, Nightwatch, Cucumber, JUnit/TestNG. - Experience with secure development, coding, scanning using tools such as Fortify, SonarQube, ZAP and Twistlock/Anchore. - Preferred experience with Jira or a similar scrum management tool. - Experience with Asynchronous messaging preferably with Kafka. Other tools/protocols such as JMS, AMQP, RabbitMQ acceptable. - Experience deploying microservices to Kubernetes platforms such as OpenShift, EKS, AKS. - Experience developing Web Services using SOAP/XML and REST/JSON. - Writing queries with relational databases. - Web technologies - HTML, CSS, JavaScript, JSON, jQuery. - Experience with database tools such as Liquibase, Flyway, ElasticSearch, Solr/Lucene. - Experience working with Jenkins Continuous integration tools and DevOps automation. ___________________________________________________________________________________________________________ Here at Harmonia we are pleased to have been repeatedly recognized for our outstanding work culture, the innovative work we do, and the employees on our team who make a difference each day. Some of these recognitions include: - Recognized as a Top 20 "Best Place to Work in Virginia" - Recipient of Department of Labor's HireVets Gold Medallion - Great Place to Work Certification for five years running - A Virginia Chamber of Commerce Fantastic 50 company - A Northern Virginia Technology Council Tech 100 company - Inc. 5000 list of fastest growing companies for eleven years - Two-time SBA SBIR Tibbett's Award winner - Virginia Values Veterans (V3) Certification We recognize that every bit of our success is the result of our teams of hard-working, motivated, and innovative professionals who are proud to call themselves part of the Harmonia family! In addition to competitive compensation, a family-focused culture, and a dynamic, productive work environment, we offer all full-time employees a variety of benefits including, but not limited to - Traditional and HSA- eligible medical insurance plans - 100% employer-paid dental and vision insurance options - 100% employer-sponsored STD, LTD, and life insurance - 5% 401(k) company matching - Flexible-schedules and teleworking options - Paid holidays and PTO Accrual Plans - Paid Parental Leave - Professional development and career growth opportunities - Team and company-wide events, recognition, and appreciation-- and so much more! Check out our LinkedIn, Facebook, and Instagram to find out a little more about who we are and if we are the right next step for your career! Harmonia is an Equal Opportunity Employer providing equal employment opportunity to all employees and applicants for employment without regard to race, color, religion, national origin, age, gender, gender identity, sexual orientation, disability, or genetics. Harmonia does and will take affirmative action to employ and advance in employment individuals with disabilities and protected veterans. To perform the above job successfully, an individual must possess the knowledge, skills, and abilities listed; meet the education and work experience required; and must be able to perform each essential duty and responsibility satisfactorily. Other duties in addition to those listed may be assigned as necessary to meet business needs. Reasonable accommodation will be made to enable an applicant with a disability to successfully apply for and/or perform the essential duties of the job. If you are in need of an accommodation, please contact HR@harmonia.com.