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Overview
Belay Technologies has been voted Baltimore Business Journal's 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
Required 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
Desired 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!
Salary and About Belay Salary Range: $70,000 to $240,000
About Belay Technologies Belay Technologies is a certified Service-Disabled Veteran-Owned Small Business located in Columbia, Maryland. 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, sex, national origin, disability, veteran status or other characteristics protected by law.
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Belay Technologies has been voted Baltimore Business Journal's 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
Required 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
Desired 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!
Salary and About Belay Salary Range: $70,000 to $240,000
About Belay Technologies Belay Technologies is a certified Service-Disabled Veteran-Owned Small Business located in Columbia, Maryland. 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, sex, national origin, disability, veteran status or other characteristics protected by law.
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