About Our Company: Delmock Technologies, Inc. (DTI), is a leading HUBZone business in Baltimore, known for delivering sophisticated IT (Information Technology) 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 (Internal Revenue Service) 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: Develops and consumes web-based, RESTful APIs utilizing Java and Spring. Works within Kubernetes (OpenShift, AWS EKS or others), Service Mesh (ISTIO or others), Microservices architecture. Ensures Swagger and OpenAPI documentation is created for RESTful services. Ensures JavaDocs are completed. Performs database system development with working knowledge of Relational Databases (Oracle, Postgres or other) and NoSQL Databases (ex: MongoDB, DynamoDB, etc). Handles large data sets and scaling their handling and storage. Designs, builds, and implements software applications, remediates defects, support activities to setup / validate infrastructure environments in support of Application team. Authors developer-friendly documentation (e.g., API documentation, deployment operations). Communicates technical concepts to a non-technical audience. Conducts alternative analysis on software approved within the application boundary. Creates and maintains code comments, Wikis, and other development artifacts in support of the application team. Creates and/or provides input for design artifacts for inclusion in design documents. Follows Test-drive development (TDD) paradigm by creating and maintaining unit tests. Ensures design conforms to technical solution of the platform and program. Operates in a DevOps environment comprised of Maven, Jenkins, SonarQube, NPM. Quickly researches and learns new programming tools and techniques Assists automation test team with development of automation regression tests, as needed. Assists performance team with development of stubs and simulators, as needed. Remediates defects and provides Tier 3 level support. Supports packaging of software as required. Uses version control systems, specifically Git and GitHub Uses and works with open-source solutions and community. Coaches, trains, and mentors' other developers, both IRS and contractor, in all aspects of software development, as needed. Encourages and supports collaborative work amongst all team members, both IRS employees and contractor employees. Ensures IRS developers and/or tech advisors are engaged with all software development tasks regularly. Produces clear, concise, centralized, organized, and easily accessible documentation for current and future reference utilizing existing IRS tools, for example OneNote and README files. This should include system architecture diagrams, flow diagrams, class diagrams, sequence diagrams, Swagger docs, JavaDocs and other diagrams as appropriate. This documentation should be written so that future technical resources can easily assimilate and understand the referenced topic. This documentation should be consolidated and contained within a systems-level, holistic documentation suite, with a hierarchical structure that is easy to navigate and understand at both the high and detailed level. Format, location, and paradigm of this documentation to be collaboratively defined along with AD management and tech advisors. 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, HTTP Filters, Loggers, Concurrence, 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!