Mid-Level Software Engineer

Belay Technologies; Laurel (MD); On-site; USD 70,000 - 190,000; Full time

Benefits offered by this job

Paid parental leave

401(k) matching

Tuition assistance

Life insurance

Health benefits

Job summary

Belay Technologies seeks a Software Engineer (Sustainment) to join our intel team in the Baltimore/Washington area. You will maintain, modernize, and support enterprise applications across Java, Spring Boot, JavaScript, Oracle SQL, and Linux, working on both modern and legacy stacks.

The role requires TS/SCI clearance with polygraph, a Bachelor’s degree (or 10 years of relevant experience), and experience with Docker, AWS, GitLab, and Agile practices.

Qualifications

• TS/SCI clearance with polygraph required.
• Bachelor’s degree or 10 years of software development experience in similar scope may substitute for degree.
• Experience with Java development and Oracle databases (SQL).
• Experience with Angular and JavaScript frameworks.
• Experience with Linux and containerized deployments (Docker).
• Able to work within core hours 10AM-2PM; exceptions considered case-by-case.

Responsibilities

• Maintain, enhance, and modernize backend services with Java and Spring Boot.
• Develop and troubleshoot software using JavaScript and other languages as needed.
• Work with Oracle databases and SQL for data interactions.
• Learn and apply additional languages, frameworks, and tools as requirements evolve.
• Update dependencies to keep applications secure and maintainable.
• Collaborate with customers, developers, and systems engineers to deliver solutions.
• Participate in Agile ceremonies and sprint planning.
• Support deployments and operations in Linux/Docker environments.
• Contribute to long-term stability and performance of critical enterprise apps.

Skills

Java development

JavaScript development

Linux experience

SQL development

Agile experience

Education

Bachelor's degree in Computer Science or related field

Tools

Docker

AWS

GitLab

Angular

Oracle

Job description

Belay Technologies has been voted Baltimore Business Journal's (BBJ) Best Places to Work 2026!

Belay Technologies is seeking a Software Engineer (Sustainment) to join our intel team. This position is ideal for a hands‑on engineer who enjoys working across multiple technologies and technical disciplines. The selected candidate will support a diverse portfolio of Commercial Off-the‑Shelf (COTS) and Government Off-the‑Shelf (GOTS) enterprise applications utilizing both modern and legacy technology stacks. Responsibilities may include application development, system integration, application configuration and customization, cloud modernization, and production sustainment. Success in this role requires adaptability, strong technical problem‑solving skills, and the ability to quickly learn new technologies as mission priorities evolve. The ideal candidate is a versatile software developer with experience building and supporting enterprise applications. You should be comfortable working with Java, JavaScript, Oracle databases, and SQL, and have the aptitude and willingness to learn additional programming languages, frameworks, and technologies based on the needs of the products and applications you support.

Primary Responsibilities:

• Maintain, enhance, and modernize backend services developed using Java and Spring Boot.
• Develop, maintain, and troubleshoot software using JavaScript and other programming languages and technologies as required by the product.
• Work with Oracle databases and SQL to develop, troubleshoot, optimize, and support application data and database interactions.
• Learn and apply additional programming languages, frameworks, tools, and technologies as required by evolving application and mission needs.
• Update software requirements, libraries, frameworks, and dependencies to ensure applications remain secure, supported, and maintainable.
• Analyze and implement code changes resulting from dependency, framework, and technology upgrades.
• Perform application maintenance activities, including troubleshooting, root‑cause analysis, issue identification, and defect resolution.
• Design and implement code enhancements and technical improvements based on customer, program, and operational requirements.
• Collaborate with customers, software developers, systems engineers, and other stakeholders to deliver timely and effective solutions.
• Participate in Agile ceremonies and contribute to sprint planning, estimation, technical discussions, and continuous improvement activities.
• Support application deployments, troubleshooting, and operational activities within Linux and Docker‑based environments.
• Contribute to the long‑term stability, reliability, security, performance, and modernization of mission‑critical enterprise applications.

Technology Stack:

• Java
• JavaScript
• AWS
• MySQL
• Linux
• Maven
• SprinGoot
• Docker
• Angular
• Git
• GitLab
• Atlassian Tool Suite
• Oracle
• Node.JS
• Maven

Candidates should have the following qualifications:

• TS/SCI Clearance with polygraph
• A bachelor’s degree and six (6) years of experience in software development/ engineering in programs and contracts of similar scope, type, and complexity. Ten (10) years of software development experience may be substituted in lieu of a bachelor’s degree.
• Experience with Java development.
• Experience working with Oracle databases, including SQL development.
• Experience with a JavaScript framework such as Angular.
• Experience developing in the Linux operating system.
• Experience with Docker for containerized application deployment and management.
• Must be able to work between the core hours of 10AM-2PM. Exceptions will be considered on a case‑by‑case basis.

Candidates are desired to have the following skills:

• AWS experience
• Experience in an Agile development environment
• Experience in an Agile development environment
• Experience working with the Atlassian Tool Suite
• Experience with Python
• Experience with GitLab for version control

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: $70,000 to $190,000

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.