Senior Software Engineer

Belay Technologies has been voted Baltimore Business Journal's (BBJ) Best Places to Work 2019, runner up in 2020 and a finalist in 2021!

Belay Technologies is seeking a Senior Software Engineer to join our intel team.  We are seeking a Back-End Software Engineer with deep expertise in Kotlin and Spring Boot to build and maintain our modern microservices architecture. This position will be hybrid in Columbia, MD. This is not just a Java-to-Kotlin role—we need engineers who understand how to leverage Kotlin's strengths, such as coroutines, to build scalable and efficient systems.

Responsibilities :

Design, develop, and optimize back-end services using Kotlin 1.9+ and Spring Boot 3.2

• Implement efficient data access using Spring Data JPA, MySQL / PostgreSQL, and Flyway for database migrations

Secure applications with Spring Security, OAuth2, JWT, and AWS Cognito

Build and integrate cloud services using the AWS SDK for Kotlin (Cognito, S3)

Improve database performance using P6Spy for SQL query logging and tuning

Write clean, well-tested code with JUnit and an H2 in-memory database for testing

Optimize API calls with OkHttp and validate structured data using Json-Schema-Validator

Maintain high performance and reliability with Spring Session JDBC for session management

Candidates should have the following qualifications :

Ability to be cleared for a security clearance

Bachelor's Degree in a technical field such as Computer Science, Engineering Etc.

Strong Kotlin experience (not just Java) and knowledge of coroutines for concurrency

Deep understanding of Spring Boot 3.2+ and modern microservices development

Proficiency in SQL databases (MySQL or PostgreSQL) and Spring Data JPA

Experience securing APIs using OAuth2, JWT, and AWS Cognito

Familiarity with cloud-based architectures (AWS SDK for Kotlin)

Solid grasp of unit and integration testing with JUnit & H2 database

Performance tuning experience with P6Spy and Hibernate JPAModelGen

Candidates are desired to have the following skills :

Experience with distributed systems and event-driven architectures

Familiarity with GraphQL or other API architectures

Hands-on experience with CI / CD pipelines and containerized deployments

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 $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.

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