3547 Software Developers jobs in Elkridge

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Do you thrive in challenging environments where your talent makes a real impact? We're seeking passionate Software Engineers at all levels, from fresh talent to seasoned veterans, to join our team and drive innovation. If you're looking for what's next (or you already know what you want!), we would love to learn more about your career and future goals. Once we have a good idea of what you're looking for, we can do all the leg work in researching, digging and connecting you with opportunities that are closely aligned. Throughout the process, we are by your side providing valuable insight, assistance and encouragement. With 45+ clients in the IC/DoD, we are your one-stop-shop for the best job of your life!

What you'll do, across all levels:
- Craft high-quality Java or Python applications and systems.
- Partner with diverse teams to ideate, design, and deliver impactful features.
- Champion code quality, ensuring applications are performant and responsive.
- Diagnose and fix issues, becoming a problem-solving powerhouse.
- Be a continuous learner, exploring new technologies and methodologies.

What you'll need, at all Levels:
- Java or Python proficiency.
- Object-oriented programming expertise.
- Software development methodologies understanding.
- Passion for problem-solving.

Junior: Bachelor's in Computer Science or related field (preferred) and up to 2 years of software development experience.

Mid-Level: Bachelor's in Computer Science or related field (preferred) and 3-5 years of software development experience.
- Proven ability to design and implement robust solutions.
- Web application framework and RESTful API experience (preferred).

Senior:
- Bachelor's in Computer Science or related field (preferred) and 6+ years of software development experience.
- Expertise in software architecture and design patterns.
- Leadership experience and mentoring abilities.
- DevOps experience (a plus).

Clearance requirement: TS/SCI w/FS Poly **REQUIRED** for consideration. No CCAs, sponsorships or upgrades.

Location/telework: Various worksites across MD: Fort Meade, Annapolis Junction, Columbia, Hanover, and more. Telework is sparse, but approved for some missions.

Apply @ or contact our MD team for more info: ,

We look forward to exploring opportunities with you!

Please note: We are constantly expanding our network of opportunities and do our best to keep our openings current as they open and close. We encourage you to apply and connect with us even if a directly matching role isn't currently listed (or available), as new opportunities arise frequently. Due to the large volume of applications we receive daily, we are not able to individually follow-up to confirm receipt of submitted information or provide other status updates. You will hear from us if there is a match!

Reviewed & reposted (03/12/2025)

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) yearsof 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

Experience working with federal government and live in NY area strongly desired Position is Subject to Contract Award May work remote with possibility of occasional travel to Brooklyn, NY Proof of Work Authorization Required Experience working with federal government and live in NY area strongly desired Position is Subject to Contract Award May work remote with possibility of occasional travel to Brooklyn, NY Position Description The full stack developer is responsible for planning, designing, coding, testing, troubleshooting, integrating, and maintaining applications in a .NET environment. They will also support security management, performance monitoring, and enhancements. Education And Experience Bachelors of Science in Computer Science, or related field 5+ years of experience with full stack development Extensive experience in large scale design and implementation projects Experience with developing inclusive and accessible user interfaces Masters in Computer Science or related field (desired) Experience working with education systems or Department of Education (desired) Certifications Microsoft Certified: Application Developer Associate or equivalent Responsibilities Design and implement adaptable and innovative features across the full technology stack (frontend, backend and database) Develop modular, scalable and reusable code focused on performance and security Collaborate with UI/UX designer and business analyst to create intuitive interfaces Contribute to system architecture and code reviews Ensure the technology stack aligns with DOE standards and cybersecurity standards with seamless integration with modern tools Skills Expertise in software analysis, design, estimation, development, testing, enhancements, support, and related activities through different stages of SDLC process. Proficient working with .NET 9+ Framework, C#, SQL Server, Angular/React, REST APIs, Azure DevOps, Git Familiarity with enterprise data integration and authentication frameworks Strong understanding of responsive design and accessibility standards (WCAG 2.1+) Ability to work collaboratively with cross functional teams as well as independently Ability to clearly communicate risks, obstacles, and issues Seniority level Seniority level Mid-Senior level Employment type Employment type Full-time Job function Job function Engineering and Information Technology Referrals increase your chances of interviewing at Think Tank Inc. by 2x Washington, DC $120,000 - $70,000 2 weeks ago Junior Full Stack Software Engineer (Part-Time/Internship) Annapolis Junction, MD 50,000 - 120,000 4 months ago Columbia, MD 80,000 - 140,000 4 months ago Herndon, VA 72,900 - 127,600 6 hours ago Fort Meade, MD 70,000 - 100,000 1 week ago We're unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI. #J-18808-Ljbffr

At ICANotes, we believe in fostering a culture of continuous improvement and learning. We prioritize adaptability over inflexible processes and encourage cross-functional teams to work together and collaborate to achieve shared objectives. We promote transparency and open communication within teams and stakeholders while fostering a culture of trust, respect, and accountability among team members. Position Overview: We're seeking an experienced and motivated Full-Stack Developer with the ability to work independently with minimal supervision. Someone who can design, develop and implement highly scalable multi tenanted SaaS applications using full-stack open-source technologies. At ICANotes, we believe in fostering a culture of continuous improvement and learning, with a focus on agile methodologies. We prioritize adaptability over inflexible processes and encourage cross-functional teams to work together and collaborate to achieve shared objectives. We promote transparency and open communication within teams and stakeholders, while fostering a culture of trust, respect, and accountability among team members. This is a onsite work position involving in-person days in our office in downtown Baltimore, MD Responsibilities: Work independently in a small team of developers in the design, development, and deployment of a scalable application running on AWS. Highly motivated with a sense of urgency in delivering highly complex multi tenanted SaaS solutions with a focus on quality. Ability to work independently through all stages of SDLC from design discussion to implementation to testing to production deployment. Write clean modularized code with unit and functional tests. Ability to troubleshoot issues in production environments. Participate in code reviews and help deliver solutions with minimum production issues. Passionate about technology and bringing new ideas to the team. Is a multitasker with the ability to work efficiently and effectively within deadlines without compromising quality. Experience working with a startup or enjoy working in a startup like environment with ambiguity and speed. Qualifications: Requires non-sponsored authorization to work in the US, either US citizen or Permanent Resident. Bachelor's Degree with a concentration in Computer Science or related is preferred. At least 4 years of experience working as a Full-Stack Developer. Proficient in node.js and HTTP-related servers. Experience with MySQL, Postgres, Typescript, HTML, and SaaS. Proficient in front-end development with Angular/React. Experience with Docker and a basic understanding of micro-services. Experience with a cloud provider: AWS, Azure, etc. Ability to investigate and analyze information/problems and to draw conclusions. Strong analytical and problem-solving skills. Preferred Skills: Experience using APIs to interact w/ AI endpoints. Experience with NestJS, RxJS, Nx, Kubernetes, and Terraform. Healthcare (medical, dental, vision) - company pays for up to 75% of health insurance for both employee and dependents - some plans with HSA options Basic term and optional term life insurance Short-term disability (paid for by the company) and long-term disability 401(k) and employer-matched retirement plan Paid time off that includes 8 sick leave days per year (80 hour annual rollover), 6 personal days per year (rollover all), and 12 vacation days per year (rollover all) Note: This job description is not intended to be all-inclusive. Employee may perform other related duties as negotiated to meet the ongoing needs of the organization. #J-18808-Ljbffr

• Bachelor's degree in Computer Science or related discipline from an accredited college or university is required. Four (4) years of additional experience may be substituted for a Bachelor's degree.
• Back-end Java 8+
• Spring/Spring Boot/Spring Cloud

• DevOps
• Kibana/Logstash
• MongoDB
• Docker / Docker Compose / Docker Swarm
• RESTful web services
• Angular/TypeScript/GWT
• Drools

• Attractive total compensation package to include competitive salary and medical benefits!
• Office perks such as free soft drinks and snacks (both healthy and not-so-healthy)
• Praxis swag (annual gift certificate to purchase top brand Praxis apparel)
• 401K contribution/match.
• 4 weeks Paid Time Off + 10 holidays
• Training is a priority! Take advantage of our endless in-house training opportunities - or seek out vendor offered (paid) training opportunities like conferences, certification courses and seminars.
  • Conferences (recently attended by Praxis employees): AWS Summit, IoT World, Black Hat and DefCon.
  • Training & Certifications: Splunk, AWS, Big Data/Cloudera, VMWare, Scrum Master.the list of certifications goes on and on!
  • Praxis University: Cyber Research, Data Analytics, IoT, AWS and RedHat course offerings and hands-on training.
• Tuition reimbursement!
• Opportunity for career advancement - Grow with the company!
• Employee Discounts!
• We truly believe the right work-life balance can exist, and it's here at Praxis. Our work is extremely important, but your job is just a part of who you are. When you enjoy your life outside of our walls, you're at your best the next time you walk through our doors. We do all we can to assure that happens every day.

Full Stack Developer (Annapolis Junction, MD) **Active TS/SCI w/Polygraph REQUIRED** Please do not apply if you do not currently possess this level of clearance. --- Telework: Up to 2 days/week Job Description: Full Stack Developer with back-end Java 8+ skills. Support will focus on software engineering of the tool suite, which delivers critical intelligence around the world at mission speed. The team works with cutting edge technology to manage high-volume and time-sensitive data throughput in response to Intelligence Community and world-wide partner needs. Support includes both sustainment of the existing tools and development of new features and functionality based on high-priority mission needs. Responsibilities will include: developing distributed software; updating software code and fixing bugs; deploying applications; installing and configuring complex software; monitoring and maintaining the system for required levels of performance; automating system operations activities; and troubleshooting and resolving issues and outages. Candidates will be required to work a rotating pager schedule for emergency 24/7 call-in support as required (roughly 1 week out of every 4-6 weeks). Staff may charge 12 additional hours (4 hours per system with 3 systems covered) for the week they are on call in addition to hours worked. Required Experience: Back-end Java 8+ Spring / Spring Boot / Spring Cloud Desired Experience: DevOps Kibana / Logstash MongoDB Docker / Docker Compose / Docker Swarm RESTful web services Angular Drools --- Excellent benefits package including 25 days PTO, 11 paid holidays, 100% employer-paid healthcare for employees and dependents - available day 1, 8% 401(k) employer match - immediate vesting. Disclaimer: The salary range provided is an estimate based on current market conditions and may be adjusted based on factors such as experience, skills, and qualifications. The final salary offer will be determined after a thorough review of the candidate's background and alignment with the role. Please note that this range is subject to change and should be considered as a guideline rather than a definitive figure. Shield Consulting Solutions is an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law. This is a full time position Visit Careers at Shield Consulting Solutions Share this job Leave this field blank Leave this field blank Personal Information * First name * Last name * Email * Address * City * State * Zip code * Phone number Attachments * Attach your Resume Attach Paste Attach a Cover letter Attach Relevant Certifications Attach Other Information * Do you hold an active TS/SCI with Full Scope Polygraph security clearance? Yes No * What is the highest level of education you have completed? How did you hear about this position? * Please enter who you were referred by * Please enter how you heard about this position #J-18808-Ljbffr

• Develop and maintain high-performance, scalable web and mobile applications using Angular, Ionic, Capacitor, and Node.js
• Implement reusable components such as AuthGuard for routing, token handling, refresh tokens, and session expiry logic
• Integrate micro-front-end architecture across multiple products and services
• Implement Heap Analytics to track user interactions and behaviors without compromising performance
• Collaborate with cross-functional teams to ensure consistent component integration across platforms
• Participate in code reviews and perform unit and integration testing
• Troubleshoot application issues and ensure analytics data integrity
• Optimize front-end performance and analytics data collection strategy

• Strong experience with Angular
• Hands-on experience with Ionic and Capacitor for mobile development
• Proficiency in Node.js for backend development
• Experience with micro-front-end architecture and reusable component development
• Familiarity with session management and authentication (token-based)
• Heap Analytics integration or similar analytics tools
• Strong debugging, testing, and performance optimization skills

• Experience migrating from Ruby on Rails to modern stacks (nice to have)
• Familiarity with cross-platform design patterns and development strategies