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About Voyis: 

Voyis designs and manufactures high performance underwater optical sensors (lasers, cameras, lights)for underwater vehicles that expand capability and enhance understanding in underwater surveys and exploration. Our products have enabled our customers to survey more than 10,000km of ocean floor across all 7 continents, helping people better understand those remote, challenging environments.  

Our mission is to push the limits of what’s possible subsea and enable every underwater vehicle to see the depths like we see the surface. All our products are proudly designed and built in Waterloo. 

What you’ll do: 

We're looking for a Full Stack Developer to join us on a fixed 6-month contract to help build and scale our desktop application platform. You'll work across the entire stack — from crafting polished, responsive user interfaces to architecting data pipelines that handle large volumes of image assets. This role is ideal for an experienced developer who can hit the ground running, own features end-to-end, and deliver high-quality work within a defined timeframe. 

Core responsibilities include: 

• Design, build, and maintain cross-platform desktop applications using Electron, TypeScript and React 

• Architect and optimize database schemas and queries to support large-scale data operations 

• Build efficient systems for ingesting, storing, processing, and retrieving large image datasets (caching, lazy loading, thumbnailing, streaming) 

• Profile and optimize application performance (memory usage, rendering, IPC communication, startup time) 

• Design robust, fault-tolerant code that anticipates and gracefully handles critical failures — protecting against data loss, corruption, and inconsistent state, with recovery mechanisms  

• Write clean, well-tested, maintainable code and participate in code reviews 

• Contribute to technical architecture decisions and help shape engineering best practices 

Your qualifications:  

• 5+ years of professional Full Stack development experience 

• Strong proficiency in TypeScript and modern JavaScript  

• Production experience building and shipping Electron applications, including packaging, and native OS integration 

• Solid experience with relational and/or NoSQL databases (e.g., PostgreSQL, SQLite, MongoDB) — schema design, indexing, query optimization 

• Experience managing large binary datasets, particularly images: storage strategies, compression, format handling, and efficient retrieval at scale 

• Experience with a modern frontend framework (React) 

• Comfortable with Git-based workflows and CI/CD pipelines 

• Able to onboard quickly and deliver independently with minimal ramp-up — this is a fixed-term engagement. 

Bonus Points for:  

• UI/UX experience — strong design sensibility, ability to build interfaces that are both polished and performant, and familiarity with accessibility fundamentals 

• Experience with image processing libraries or GPU-accelerated rendering 

• Knowledge of Electron performance patterns (process isolation, worker threads, native modules) 

• Experience with local-first or offline-first architectures and data synchronization 

• Familiarity with design tools (Figma) and design systems 
  

Yearly Salary Range: $100,000-120,000

Why Join Voyis:

Voyis is a small, highly capable team of engineers and problem-solvers building technology used in some of the world’s most demanding environments. Our work has supported expeditions to iconic sites such as the Titanic and Endurance, and every team member has a visible impact on both our products and our customers.

This posting is intended to fill an existing vacancy. Applications are reviewed by our team and we may use artificial intelligence (AI) to assist in screening or assessing candidates. This role requires legal authorization to work in Canada without sponsorship.

At Voyis we value diversity and we’re proud to be an equal opportunity workplace. We are committed to creating an inclusive environment for all. We thank everyone who applies and for their interest in working for Voyis, however, only candidates selected for an interview will be contacted. No telephone or walk-in inquiries please.

To learn more about life at Voyis, check out voyis.com and follow us on LinkedIn.