> Markdown version of [/jobs/ext/3044972-software-developer-3-swd3](https://www.wearedevelopers.com/jobs/ext/3044972-software-developer-3-swd3). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Developer 3 (SWD3) - **Company:** RealmOne - **Location:** Columbia, MD, United States - **Experience:** Experienced - **Salary:** $230,000.0 - $287,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), XML Schema, Fourth-Generation Programming Language, Agile Methodology, Amazon Web Services, Software Applications, C++ (Programming Language), Configuration Management, Computer Engineering, Common Object Request Broker Architecture, Data Dictionary, Software Debugging, Software Design Documents, Linux, Document Management Systems, Django Web Framework, Eclipse (Software), Middleware, Perl (Programming Language), Network Interface Controllers, Hibernate (Java), Integrated Development Environments, Internet Communications, Java GUIs, Spring Framework, JDeveloper, Python (Programming Language), PostgreSQL, Object-Oriented Software Development, Open Source Technology, Ruby on Rails, Regression Testing, Software Tools, Service-Oriented Architecture, Simple Object Access Protocol (SOAP), Software Engineering, Product Software Implementation Methods, Software Requirements Analysis, Subversion, Web Application Frameworks, Extensible Markup Language (XML), Zope, Scripting, Git, AngularJS, Information Technology, Extreme Programming, Free and Open-Source Software, Operational Systems, Enterprise Service Bus, Docker, Programming Languages - **Published:** September 24, 2026 - **Apply:** https://jobs.localjobnetwork.com/apply/add/88418638/1 ## About the Role * Master's Degree in Computer Science or Computer Engineering from an accredited college or university is required. A bachelor's degree and two (2) additional years of software related experience OR six (6) additional years of software related experience may be substituted for a master's degree. * Fifteen (15) years experience in software application design and development performing coding, debugging, testing and troubleshooting throughout the application development process. * Twelve (12) years experience leading teams of software design and development for collection systems and components is required. Certifications: * Requires DoD 8570 compliance Information Assurance Technical (IAT) Level II certification. Position requires active Security Clearance with appropriate Polygraph ## Description We are looking for a senior software developer looking to join a small, dedicated team taking an important operational system to the next level. This program currently supports a modern and expanding tech stack that include Java / Java Spring, AWS, Angular, Hibernate, PostgreSQL, Docker/Swarm (converting to Podman) and JHipster, a free and open-source application generator. Java is required, but you will be able to come up to speed on some of the other technologies and needed. This is NOT maintenance. The program is getting new requirements as its success continues. Current incumbent staff are there to provide guidance and a productive, dynamic work environment, but looking for candidates who are self-starters and enjoy expanding their knowledge and responsibility. This task is part of an 8-year program that will have legs and allow growth and long term stability at an easy to access location., * Use object oriented techniques, programming languages, and standard methodologies, including classic development, waterfall, and agile methods (Extreme programming). * Perform deployment, installation, maintenance, quality control monitoring, and implementation of software at Government specified locations. * Maintain processes to log and track customer service requests. * Maintain/develop software products to be used on a variety of platforms. * Uses Configuration Management (CM) tools, such as Subversion/Trac or Git * Codes in eXtensible Mark-up Language (XML)/W3C XML Schema to C++ Compiler (XSD) * Applies middleware technologies, such as enterprise service bus (ESB), CORBA, or Internet Communications Engine (ICE) * Uses Integrated Development Environments (IDEs), such as JBuilder and/or Eclipse * Design, develop, and document system and subsystem-level code. This includes support for system requirements, preliminary design, detailed design and specifications, data dictionaries, interface control/design documents, user help information/manuals, maintenance information/manuals, operations information/manuals, program code, quality assurance activities, and test. * Develop customer requirements and information needs into software specifications that can be implemented * Maintain/modify software code to add new features, correct errors, adapt to new hardware, or to improve system performance. * Integrate with other signal repositories when prioritized by the Government. * Perform system and unit level testing. This includes test plans and procedures, documentation of test results and development of special test code. Plan/conduct regression tests after each code modification, upgrade enhancement. * Use object oriented techniques, programming languages, and standard methodologies, including classic development, waterfall, and agile methods (Extreme programming). * Proficient with Linux/UNIX is required. * Development experience (C++, JAVA, XML/XSD), scripting language experience, (Python or Perl), JAVA GUI development experience and Web framework experience (i.e. Ruby on Rails, Django, SpringFramework, or Zope) is required * Performs system and unit level testing. This includes test plans and procedures, documentation of test results and development of special test code. Plans/conducts regression tests after each code modification, upgrade enhancement. * Develops and applies advanced methods, theories and research techniques in the investigation and solution of complex and advanced software applications and problems. Conducts, technically directs and evaluates projects or major phases of significant projects, coordinating the efforts of engineers and technical support staff in the performance of assigned projects. Conducts investigations and test of considerable complexity. Reviews literature, patents and current practices relevant to the solution of assigned projects. Evaluates vendor capabilities to provide required products or services. Provides technical consultation to other organizations. * Interacts with project customers and stakeholders to report project status, and manage subsystems requirements. * Researches, evaluates, and assesses software tools and technologies such as Free and Open Source Software (FOSS), Government-off-the-shelf (GOTS), Commercial-off-the-shelf (COTS), and incorporates those findings into the overall software system design. * Implements Service Oriented Architecture (SOA)/middleware technologies, such as ESB, CORBA, Simple Object Access Protocol (SOAP), and ICE. ## Related Videos - [One Pipeline, Three Regulator - SBOM Compliance for the Developer](https://www.wearedevelopers.com/videos/100169-one-pipeline-three-regulator-sbom-compliance-for-the-developer) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) ## Related Articles - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers) - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)