Senior Software Engineer

Belay Technologies has been voted Baltimore Business Journal's (BBJ) Best Places to Work 2026! Belay Technologies is seeking a Senior Software Engineer to join our intel team. Join a high-impact, mission-driven team as a Full-Stack Software Engineer, supporting a mature and well-established technical organization. You’ll be a member of a small 3-4 person team, which plays a critical role within a broader 20+ person development organization.

Together, the team supports a robust web-based platform that integrates diverse publicly available information (PAI) sources into a powerful analytical tool used by hundreds of mission customers. In this role, you'll contribute across the stack, developing ingest pipelines, building scalable REST APIs, and enhancing user-facing visualizations.

The platform supports large-scale data ingestion, complex queries, and interactive analysis. You'll collaborate closely with other sub-teams on the project to ensure end-to-end functionality and performance. We're looking for a developer who is excited to contribute to all aspects of this system and who also brings an interest in improving team processes and tooling, particularly in ways that help us integrate new data sources more efficiently and deliver faster.

This long-running software effort is known for its technical stability, team cohesion, and deep integration into mission-critical systems, offering you the opportunity to make meaningful contributions in a fast-paced, collaborative environment.

Responsibilities

Drive the continual evolution of a mature software system, encompassing code quality, testing, documentation, and Jira ticket management, while leading the end-to-end design and implementation of data processing workflows. Leverage established design patterns and AI platforms to streamline code development, data transformation, and schema management, ensuring the product’s long-term scalability and maintainability.

Understand API-driven microservice design patterns, NoSQL databases, dataflow tools (Apache Ni. Fi), and modern web frameworks. Contribute to all parts of the data processing lifecycle, from collection to processing to storage, and facilitate presentation to analysts in our UI. Manage and optimize data storage, retrieval, and performance using Elasticsearch and the Dgraph graph database, with some MongoDB and Redis used as well.

Maintain a team player mentality as a collaborative member of a fast-paced, structured team; and provide mentorship and guidance to team members in best practices for data processing and software engineering. Collaborate with analysts, product owners, and fellow engineers to ensure solutions meet operational needs. Help identify and implement process improvements to support faster delivery of new data sources and overall team efficiency.

Skills Requirements : Extensive software engineering experience in Java, and in developing Java-based REST APIs. Experience with NoSQL databases (e.g., Elasticsearch, MongoDB, Redis, Dgraph, etc.) Proficiency in at least two of the following: Spring Boot Rest APIs and Spring Libraries (Spring Security, Spring Data, etc.)

Data wrangling and dataflow (i.e., incorporating aspects of data discovery, mining, analysis, cleaning, exploration, modeling, structuring, transforming, enriching, and validating). Proficiency in dataflow tools such as Apache Nifi. Familiarity with Git for version control, and Maven and/or npm for build automation. Proficient working in a Linux development environment.

Demonstrated willingness and ability to learn new tools, technologies, and workflows. Experience using Atlassian task-tracking and documentation tools like Jira and Confluence, or similar platforms. Excellent communication and teamwork skills. Nice to Haves : Experience with various corporate data formats. Leveraged AI platforms to assist in hybrid automated/manual data transformation, code development, and schema management.

Familiarity with CI/CD tools (e.g., GitLab) and automated testing (e.g., JUnit). Advanced knowledge of containerization and orchestration platforms, including Docker/Podman and Kubernetes. Proficient in JSON and JSON Schemas or a similar schema framework, with a strong background in data modeling concepts and techniques.

Experience with AWS services (EC2, S3, SQS, SNS, Lambdas, etc.) Scripting with Bash, Python, and/or Groovy. Knowledge of event-driven or messaging technologies such as Kafka or RabbitMQ. Frontend development experience with modern JavaScript and a GUI framework like Vue.js. Experience with production TAO capabilities and operations.

Candidates should have the following qualifications: TS/SCI Clearance with polygraph 12 yrs., B.S. in a technical discipline or 4 additional yrs. in place of B.S.

Perks and Benefits

8 weeks paid leave - 4 weeks of personal leave, 3 Yay! days, take off on your birthday,11 paid holidays and optional leave up to 6 days through Belay's volunteer program 10% matching in 401(k) contributions vested on day one $5,000 annual training/tuition Student Loan Repayment Program 100% company-funded HSA Rich medical coverage (100% coinsurance) Dental coverage including orthodontia Up to $420,000 in life insurance, premiums 100% company funded Amazon Prime, gym reimbursement, monthly lunches, games and prizes Pet adoption program, generous referral bonus program, fun events, and more!

At Belay, we are committed to creating an environment where you can thrive both professionally and personally. We believe in transparency and fairness in compensation. Several factors influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, education, specific skills and competencies and certifications.

Belay offers a competitive total compensation package that includes benefits and perks, a flexible work-life balance, and career development. Salary Range: $190,000 to $240,000 Belay Technologies is a certified Service-Disabled Veteran-Owned Small Business located in Columbia, Maryland (Baltimore/Washington area). Belay Technologies specializes in systems automation and full stack development.

Belay Technologies provides leading technology and engineering solutions to the DoD, as well as state-of-the-art commercial products. We hire software engineers, web designers, test engineers, systems engineers, systems administrators, database engineers and other tech services. We are an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.