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Java Backend Developer

Ottawa, ON
On-site
Posted Sep 23, 2026
1 position

$105,000–$120,000 / year

Opens an external site

Employment type: Full-time
Experience level: Mid-level · 3+ years
Minimum education: Bachelor’s degree
Posting language: English
Working hours: 40 hours per week

Job summary

The developer will be responsible for the ongoing development, customization, and modernization of BSS systems for customers. They will also actively participate 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.

What you’ll do

Requirements

Candidates must hold at least a bachelor's degree and have a minimum of 3 years of experience in software development. Proficiency in Java, Spring-boot, and agile methodologies is required, along with strong communication skills.