Senior Back-End Developer

Job Description About Our Company: Delmock Technologies, Inc. (DTI), is a leading HUBZone business in Baltimore, known for delivering sophisticated IT and Health solutions with a commitment to ethics, expertise, and superior service. Actively engaged in the local community, DTI creates opportunities for talented residents while maintaining a stellar reputation as an award‑winning contractor, earning accolades like the Government Choice Award for IRS Systems Modernizations. Location: This position is hybrid, based in Lanham, Maryland. Candidates must be local to Lanham, MD or willing to relocate. Role: Delmock Technologies Inc. is seeking a Back‑End Developer to help transform our federal client’s organization and accelerate mission execution through emerging and disruptive technologies, innovative business models, retooled program operations and industry‑driven solutions. Responsibilities: Develop and consume web‑based, RESTful APIs utilizing Java and Spring. Work within Kubernetes (OpenShift, AWS EKS or others), Service Mesh (ISTIO or others), Microservices architecture. Ensure Swagger and OpenAPI documentation is created for RESTful services. Ensure JavaDocs are completed. Perform database system development with working knowledge of Relational Databases (Oracle, Postgres or other) and NoSQL Databases (ex: MongoDB, DynamoDB, etc). Handle large data sets and scale their handling and storage. Design, build, and implement software applications, remediate defects, support activities to set up/validate infrastructure environments in support of the Application team. Author developer‑friendly documentation (e.g., API documentation, deployment operations). Communicate technical concepts to a non‑technical audience. Conduct alternative analysis on software approved within the application boundary. Create and maintain code comments, Wikis, and other development artifacts in support of the application team. Create and/or provide input for design artifacts for inclusion in design documents. Follow Test‑Driven Development (TDD) paradigm by creating and maintaining unit tests. Ensure design conforms to technical solution of the platform and program. Operate in a DevOps environment comprised of Maven, Jenkins, SonarQube, NPM. Quickly research and learn new programming tools and techniques. Assist automation test team with development of automation regression tests, as needed. Assist performance team with development of stubs and simulators, as needed. Remediate defects and provide Tier3 level support. Support packaging of software as required. Use version control systems, specifically Git and GitHub. Use and work with open‑source solutions and community. Coach, train, and mentor other developers, both IRS and contractor, in all aspects of software development, as needed. Encourage and support collaborative work amongst all team members, both IRS employees and contractor employees. Ensure IRS developers and/or tech advisors are engaged with all software development tasks regularly. Produce clear, concise, centralized, organized, and easily accessible documentation for current and future reference utilizing existing IRS tools, for example OneNote and README files. This includes system architecture diagrams, flow diagrams, class diagrams, sequence diagrams, Swagger docs, JavaDocs and other diagrams as appropriate, structured in a systems‑level, holistic documentation suite. Minimum Requirements: Bachelor's degree in computer science, Information Technology, or a related field. 5 years of experience with the following: Java Development: JDK1.8 and 11, MDC, Filters, Loggers, Concurrency, Security, JPA, JUnit, etc. Spring Projects: MVC, Boot, WebFlux, Cloud, Test, Security, Cache, JPA, etc. Persistence: Relational Databases (Ex: Oracle, PostgreSQL), NoSQL Databases (ex: MongoDB, DynamoDB, etc) DevOps: Maven, Jenkins, SonarQube, Nexus, Git Experience with scalable search technology (e.g., ElasticSearch, Solr). Working knowledge of Business Objects Enterprise (BOE) and Red Hat JBoss Enterprise Application Platform (JBoss EAP). Experience working with Agile methodologies. Preferred: Swagger and OpenAPI Splunk Excel, PowerPoint Clearance: Active IRS MBI (Minimum Background Investigation) Clearance. Recently ranked as high as #3 among HUBZone Companies in a GOVWIN survey, DTI offers a dynamic environment for those passionate about impactful projects, community involvement, and contributing to a top‑ranking Federal project support team. At DTI, we balance continuous growth and innovation with a strong dedication to corporate social responsibility. Join our talented team and be part of a company that values both professional excellence and community impact. Explore the exciting career opportunities awaiting you at DTI! #J-18808-Ljbffr