Elm On Senior java developer Jobs – 23 Openings This Week

Senior Software Developer
RBR Ltd. —Ottawa, ON
- $120,000–$155,000 a year
- Full-time
- DevOps
- Laboratory experience
- Java
- Paid sick leave
Quick apply
Senior Software Developer
Nanometrics Inc —Ottawa, ON
- $115,000–$140,000 a year
- Full-time
- Hybrid work
- Computer Science
- DevOps
- Engineering
- Dental care
- Paid time off
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Senior Analytics Developer
Warner Bros. Discovery —Kanata, ON
- $83,000–$125,000 a year
- Java
- SQL
- AI
- Wellness program
- Designated paid holidays
Senior Software Developer
Warner Bros. Discovery —Kanata, ON
- $109,700–$159,700 a year
- Full-time
- Computer Science
- Engineering
- Java
- Wellness program
- Designated paid holidays
Senior Software Developer (Backend)
AMETEK, Inc. —Ottawa, ON
- $80,000–$120,000 a year
- Computer Science
- Engineering
- Java
- Employee assistance program
Senior Software Developer in Test
Barracuda Networks Inc. —Ottawa, ON
- $106,000–$140,000 a year
- Hybrid work
- Azure
- Java
- SQL
Quick apply
Applied AI Backend Sr. Software Developer - Ottawa, ON
Trend Micro —Ottawa, ON
- $105,000–$130,000 a year
- Full-time
- Hybrid work
- Azure
- Computer Science
- CAD
- Wellness program
- Disability insurance
Senior ISTAR Software Engineer
General Dynamics Mission Systems - Canada —Nepean, ON
- $85,000–$100,000 a year
- Full-time
- Hybrid work
- Computer Science
- Engineering
- Java
- Dental care
- Tuition reimbursement
Quick apply
Applied AI Backend Software Developer - Ottawa, ON
Trend Micro —Ottawa, ON
- $105,000–$130,000 a year
- Full-time
- Hybrid work
- Azure
- Computer Science
- CAD
- Wellness program
- Disability insurance

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Senior Software Developer

RBR Ltd. -
Ottawa, ON

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Job details

Full-time
$120,000–$155,000 a year

Qualifications

Spring Boot
DevOps
Laboratory experience
J2EE
Java
Databases
OOP
Bachelor's
Usability
REST
UX
GitHub
APIs
IT
UI
SQLite
AI
Spring framework
HTML
Design patterns

Full job description

About RBR: Making waves since 1973

At RBR, we’ve been designing cutting-edge instruments to measure our blue planet for over 50 years. Built to withstand the harshest environments on Earth, our instruments are deployed from the ocean’s deepest trenches to the polar ice caps, capturing essential data on water temperature, salinity, pH, and more. This data empowers researchers in the global fight against climate change, and our technology supports groundbreaking science with partners like Fisheries and Oceans Canada, Woods Hole, the Scripps Institution, and the British Antarctic Survey.

At RBR, we care deeply about our work, each other, the environment, and the global communities we serve. We value teamwork, continuous improvement, and having fun along the way. From weekly lunches to social events, we’re a crew that thrives on complex, exciting challenges that have a meaningful impact on the blue planet! Ready to make waves with us? Apply below!

About the Role

As the Senior Software Developer, you’ll be joining a small, collaborative software team at RBR. Your primary focus will be Ruskin, RBR’s flagship cross-platform desktop application (Mac and Windows) that connects to, configures, and deploys our full instrument lineup, and integrates with other internal systems to keep everything in one place. A secondary focus is our calibration software ecosystem, including a standalone calibration application currently being spun out of Ruskin into its own product.

You’ll work closely with every engineering discipline at RBR, which means your code has a direct impact on the physical instruments our customers rely on. This is a full-stack role with real breadth: from UI and databases through to low-level instrument communications and release engineering. You’ll own 3–4 projects at a time, seeing them from requirements through to delivery, and interfacing directly with other teams to make it happen.

This is a fast-moving environment where priorities shift by the hour, the right person finds that energising, not frustrating.

What you'll build:

️ Next-gen architecture

Evolve Ruskin’s sophisticated multi-layered Java-based desktop platform and design scalable systems for processing sensor data
Drive the software roadmap and long-term architectural vision
Contribute to and improve our CI/CD pipelines, build system, and release planning
Build and improve automated testing and DevOps processes, everyone on this team chips in here
Real-time systems & instrument communication

Develop robust communication protocols between Ruskin and RBR’s instrument lineup
Optimise database and storage interactions
Architect and maintain instrument communication frameworks

Calibration software & APIs

Build and maintain calibration software systems and REST APIs using Spring/Spring Boot
Develop and improve our standalone calibration application (currently being spun out of Ruskin)
Integrate calibration workflows with QA, manufacturing, and lab operations

User experience

Design intuitive UIs for both researchers (customers) and RBR’s internal Calibration team
Balance functionality with usability for mission-critical desktop applications
Bring a UI/UX lens to design discussions, we want someone who thinks about the end user, not just the code

Team & support

Provide internal support to Engineering, Production, and Calibration teams
Action support tickets from external users and the global oceanographic community
Review and test code changes from other developers, QA is a shared responsibility, not a separate function
Provide technical mentorship and conduct design and code reviews

Global & scientific impact

Support researchers deploying instruments worldwide and contribute to open science
Provide developer-level support to the global oceanographic community
Ensure data accuracy through reliable, well-integrated calibration systems

What you bring:

Hands-on Java development experience (J2SE, J2ME, or J2EE) - you’ve built real software and can show it

Experience developing desktop applications (Windows and/or macOS) - this is not a SaaS or cloud role
Comfort spanning the full stack: UI through to backend, data, and external system integrations
A track record of contributing to QA and testing - not handing it off to someone else
Some exposure to DevOps practices and build automation; you’ve created or improved automated processes
Strong OOP fundamentals, design patterns, and cross-platform development experience

Nice to haves:

UI frameworks: SWT, Swing, or JavaFX for desktop; HTML and REST for where we’re headed
SQLite for database experience; Spring or Spring Boot signals awareness of our modern Java direction
Eclipse IDE familiarity
UI/UX sensibility — even informal experience thinking about usability and design
Familiarity with AI development tools (GitHub Copilot, ChatGPT, Claude, Gemini, etc.) or a genuine interest in working with them — this is a real differentiator for us
Experience architecting complex, multi-tiered systems integrating hardware, databases, APIs, and user interfaces

Salary range: $120,000–$155,000
The final salary and job level will depend on your experience and qualifications. We know great talent shows up at different points in a career - whether you’re earlier in your journey or bring senior-level experience, we encourage you to apply. Depending on fit, the role level may shift accordingly.

Why you'll love working at RBR

20 days of vacation, plus a company-wide holiday shutdown and paid sick days
Benefits from day 1 & RRSP contribution matching
Bonus program
Annual fitness reimbursement program
Greener commuting incentive program (bike-to-work, carpool, or transit passes)
EV reimbursement program + on-site charging stations
Charitable donation matching
Weekly lunches (on us!)
Team events and social activities
Collaborative, supportive work environment
Work alongside passionate experts spanning multiple disciplines
Direct impact on climate science and ocean research

At RBR, we celebrate and support diversity in our workplace. As an equal-opportunity employer, we welcome people from all backgrounds and aim to find the most talented person for each role. Accommodations are available upon request at every stage of the selection process.

AI statement: At RBR, we may use artificial intelligence (AI) tools during parts of our hiring process. These tools may be used to support note-taking, scheduling, and/or organizing candidate information. Final hiring decisions are made by our people.

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About RBR: Making waves since 1973

About the Role

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