Senior Full Stack Web Developer

Harmonia Holdings Group LLC
medical insurance, life insurance, vision insurance, parental leave, paid time off, paid holidays, 401(k)
United States, Maryland, Baltimore
Jul 08, 2025
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. Harmonia Holdings Group, LLC has been on the Inc. 5000 list of fastest growing companies in the United States for the past 10 years and was selected in 2019 as a Virginia Chamber of Commerce Fantastic 50 company. Every bit of our success is the result of a team of incredibly talented, dedicated, and hard-working professionals who are the heart and soul of Harmonia! Position Summary: We have an exciting opportunity for a Senior Full Stack Web Developer to join our team. To perform this 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 the below, may be assigned as necessary to meet business needs. Responsibilities: Ability to understand complex systems and how to troubleshoot and make them highly available Maintain a collaborative spirit and work with a team to build products in an Agile fashion Demonstrate a work ethic that focuses on continuous improvement where you are giving and receiving constant constructive feedback Design, develop, test, and integrate custom web applications and solutions interfacing with restful services Develop an AWS cloud-based web application Interface with customer management and SMEs Develop scalable and secure cross-platform web applications Resolve complex design, implementation, and/or performance issues Optimize web pages for maximum speed and scalability with a focus on the user experience Develop front end applications using HTML/CSS/JavaScript, and other front end development frameworks such as Angular and React Work as part of a development team for the development of both front-end web application and back-end microservices Support all development and delivery activities, from requirements definition and specification to deployment and delivery to production Consult with project teams and end users to identify new requirements and areas for improvement Required Qualifications: Bachelor's degree in computer science or a related field, or substitute eight years of equivalent work experience. At least seven (7) years of recent hands-on front-end and back-end development experience Two (2) years of experience using Angular or React framework Four (4) years of experience using an advanced programming language (ie: Java, Python, Node.js) Four (4) years of Web application, SOA, web service (SOAP or RESTful) development and deployment Infrastructure as Code (IaC) with AWS CloudFormation. Hands-on experience with coding and application deployment to Amazon Web Services (AWS) cloud ecosystem (ie: AWS Lambda, API Gateway, S3, CloudFront, WAF) Must be proficient in mock unit and integration testing Experience working in an Agile environment (Scrum, Kanban) Experience in developing innovative, scalable, secure, cross-platform enterprise applications Experience in Cloud application development, preferred AWS Strong interpersonal communication skills to establish and maintain an effective working relationship with development teams and customers Solid relational database experience with SQL programming. Preferred - PostgreSQL Active Clearance: Public Trust, Secret, Top-Secret or any other type of government clearance. Preferred Qualifications: Experience with CI/CD products is a plus - AWS Fargate Strong interpersonal communication skills to establish and maintain an effective working relationship with development teams and customers Additional Requirements: In order to meet the clearance requirements for this opportunity, candidates must be authorized to work in the United States. Ability to pass a US Public Trust background investigation for access to the client site and computing systems. All candidates will be subject to a complete background check to include, but not limited to, Criminal History, Education Verification, Professional Certification Verification, Verification of Previous Employment, and Credit History. Local to the Washington, DC (DMV) area, this role is a hybrid position. ___________________________________________________________________________________________________________ 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 w/ Wellness Incentives for employees and family 100% employer-paid dental and vision insurance options 100% employer-sponsored STD, LTD, and life insurance Veterans Cohort Gym membership reimbursement 401(k) matching Dollar-for-dollar 501(c)(3) donation matching Flexible-schedules and teleworking options Paid holidays and Flexible Paid Time Off Adoption Expense Reimbursement Paid Parental Leave Professional development and career growth opportunities and paid training days Employer-sponsored Employee Assistance Program for employee and family Team and company-wide events, recognition, and appreciation-- and so much more! Check out ourLinkedIn,Facebook, andInstagramto 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 contactHR@harmonia.com.