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Java Backend Developer

  • Ottawa, ON
  • On-site
  • Posted Sep 18, 2026
  • 1 position

$105,000–$120,000 / year

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Employment type
Full-time
Experience level
Mid-level · 3+ years
Minimum education
Bachelor’s degree
Apply by
Oct 14, 2026
Posting language
English
Working hours
40 hours per week
Seniority
Entry level

Job summary

Develop, customize, and modernize BSS systems while building high-performance and scalable software architectures. Engage in the full software lifecycle and provide technical support during pre-sales and scrum events.

Job details

Ottawa’s tech sector is growing, and so are the opportunities! If you’re exploring your next role in tech, Work in Ottawa can help you learn about leading employers and exciting careers in Canada’s capital. Led by Invest Ottawa, the city’s lead economic development agency, this initiative works alongside tech companies, recruiters and search firms, and community partners to spotlight the incredible innovation happening here and help connect great people with great opportunities. We are excited to partner with Compax to attract top talent for a Java Backend Developer position. This job posting is a new position within our organization. About CompaxDigital Do you love working agile and are an absolute team player? Are you a Java Backend Developer with heart and soul? Would you like to work in an environment where you can contribute, implement your ideas and challenge yourself on a daily basis? If yes, welcome to Compax! We are an international software company active in the areas of Telco, IoT, Media, and Tolling. We offer our customers tailor-made software solutions so that they can get the best out of their business. We are a hierarchy-less company and work in agile Scrum teams with 5-6 members. Your Role Back-end Java developer for ongoing development, customization & modernization of BSS system for existing and new customers Building high-performance and scalable software architectures in the Java environment and integrate them into partner systems Active involvement in the entire software lifecycle, from requirements analysis to deployment Active customer contact in the areas of technical support in pre-sales stage, requirement engineering, refinements and other scrum events We Wish You Bring To Us Relevant academic degree (bachelor degree minimum) Work experience as software developer (3 years minimum) Knowledge in high-performance and scalable software architecture Agile mindset and knowledge about agile development methods like Scrum Reliable, accurate and independent way of working - you keep calm even in hectic times High initiative to support team members, positive collaboration with others Fluent written and spoken English skills, French skills will be a plus Experience in Telecommunication industry would be a big plus Technical Stack You Should Already Be Familiar With Java 11 or above, Spring-boot, Maven, Gradle, JPA, PostgreSQL, REST-API, SOAP This Extra Knowledge Will Be a Plus Docker, Kubenetes, CI/CD(Jenkins), AWS, Rancher, JSF, Oracle, JIRA, MQ (Kafka, Active MQ, Rabbit MQ) Tools We Commonly Use At Compax eclipse/InteliJ, Git, Maven, dbeaver Work in Ottawa utilizes a secure, closed AI environment for the initial screening of resumes, ensuring your data remains safe while helping us efficiently identify top candidates. We encourage all applicants to apply, even if you do not meet every requirement if you possess relevant skills, enthusiasm, and eagerness to grow, we want to hear from you! To enhance your visibility, consider including relevant keywords in your resume. If you require any accommodation during the hiring process, please reach out to Recruiting@compax.at. Work in Ottawa is an initiative of Invest Ottawa, the economic development agency with a mandate of facilitating economic growth and job creation for the city of Ottawa. As a hub for innovation and growth, Ottawa is home to a vibrant tech job market that beckons top talent from around the globe Ottawa’s leading employers are on the lookout for professionals like you. If you’re ready to elevate your career, our city’s dynamic job market offers a wealth of opportunities. Connect with top companies and find your place among the best in Ottawa’s tech scene.

What you’ll do

Develop, customize, and modernize BSS systems while building high-performance and scalable software architectures. Engage in the full software lifecycle and provide technical support during pre-sales and scrum events.

Requirements

Requires a minimum of a bachelor's degree and at least 3 years of experience as a software developer. Candidates must be proficient in Java 11+ and Spring Boot with an agile mindset.

Listed skills

  • Kubernetes · Preferred
  • CI/CD · Preferred
  • PostgreSQL · Preferred
  • Docker · Preferred
  • Scrum · Preferred
  • Amazon Web Services · Preferred
  • Java · Preferred
  • Spring Boot · Preferred

Other relevant skills

Identified from the job description. Confirm important requirements above.

  • Java
  • Spring Boot
  • Maven
  • Gradle
  • JPA
  • PostgreSQL
  • REST-API
  • SOAP
  • Docker
  • Kubernetes
  • CI/CD
  • AWS
  • Kafka
  • Scrum
  • Software Architecture
  • Requirement Engineering

Job areas

  • Software
  • Technology
  • Engineering