At CoLab, we help mechanical engineering teams bring life-changing products to market years sooner. CoLab is the AI platform for driving stronger engineering decisions. Every design review in CoLab builds a knowledge repository of design feedback, decisions, and lessons learned - which AI agents draw from to flag issues on future designs before they compound.

The more your team works in CoLab, the smarter it gets and the faster you arrive at the ideal design. John’s, Newfoundland, CoLab has grown quickly from our first customer in 2019 to a rapidly scaling company. We're looking for a Senior Backend Developer to join our Build Operator team.

It's becoming the intelligence layer across CoLab, helping engineering teams search company knowledge, surface design decisions, answer complex questions, and generate insights from years of engineering work. That means building scalable retrieval pipelines, evolving our AI search infrastructure, integrating structured and unstructured engineering data, and developing the services that power intelligent experiences across the platform. You'll help build capabilities like company-wide knowledge retrieval, dynamic reporting, AI-generated dashboards, and personalized engineering insights that become embedded throughout CoLab.

You'll spend far more time thinking about data architecture, search quality, retrieval systems, and scalable services than building user interfaces. You're an experienced backend engineer who enjoys building systems that make complex information useful. You like thinking about how data is organized, retrieved, and transformed into something customers can trust.

Whether you’re designing APIs, optimizing distributed systems, or improving search relevance, you care about building infrastructure that quietly powers exceptional product experiences. You don't need previous experience building AI products,



but you're excited about applying modern AI technologies to solve real customer problems. You prefer working primarily on frontend applications You like difficult infrastructure and data problems You're curious about AI, search, and knowledge systems You balance technical excellence with pragmatism and collaboration Build APIs and services that enable AI-powered experiences throughout the platform Improve search quality, data pipelines, and knowledge retrieval performance Design systems that organize company knowledge across business units, engineering domains, and manufacturing processes Collaborate closely with AI, Product, Design, and Engineering to deliver customer-facing capabilities Improve reliability, observability, and performance across backend infrastructure Mentor teammates through architecture discussions, code reviews, and technical leadership 7+ years building production backend software Strong experience with Python and contemporary backend development Experience building APIs, distributed systems, and cloud-native applications Strong understanding of databases, system architecture, and scalable backend design Experience working with structured and unstructured data Comfortable making architectural decisions in evolving product environments Excellent communication skills with both technical and non-technical teammates Bonus Points Experience building AI-powered applications or LLM workflows Experience with vector databases or search infrastructure (TurboPuffer experience is a plus) Experience building enterprise SaaS platforms This is a full-time, permanent position with competitive compensation and stock options We offer extended health benefits, unlimited paid vacation, and RRSP matching John’s, Newfoundland, with flexible hybrid and remote options.

This role can be performed remotely from anywhere in Canada.

Equity

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We encourage you to help us break that statistic and apply even if you don’t meet every single qualification–your potential is what matters most to us. #

📌 Senior Backend Developer (C#, .net) (Winnipeg)
🏢 CoLab Software
📍 Winnipeg