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FOSSA · IT - Software Development

Applied AI Software Engineer

Canada, Toronto 120000.00 - 200000.00 CAD / Year · Job Posted February 18, 2026
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Job Description

As an applied AI software engineer on our team, you'll be working on researching, designing, prototyping, and implementing our next generation of software at FOSSA. While still working closely with the entire Engineering and Product departments, the R&D team focuses on more experimental software development that will define the future of our company. Our current focus is around using a combination of static analysis, deterministic algorithms, along with LLM interactions, to provide our users with reliable, time-saving, and automated solutions to keeping their projects and the dependencies they use as healthy as possible The R&D team follows a lightweight process that lets the team move fast and learn from experiments quickly. Come help us create the future of FOSSA!

Job Responsibility

  • Work closely with our R&D business unit to research, plan, design, prototype, and build the future of FOSSA
  • Own user-impacting functionality from conception to completion
  • Build and scale the most valuable prototypes into production
  • Have significant ownership in our technical architecture and R&D roadmap
  • Primarily work in Typescript, but touch a variety of codebases in other languages, such as Rust, Haskell, or Go
  • Contribute to structured analysis of various languages (Java, Python, others) our customers use
  • Experiment with LLMs and context engineering and benchmark the results to ensure we accomplish maximal value and consistency from them

Requirements

  • Experience working on greenfield projects as part of small teams
  • Experience building and deploying software in high-velocity environments
  • Experience building and supporting scalable SaaS products and features
  • Experience with relational databases and writing performant SQL queries
  • Experience interacting with LLM APIs as a service
  • Enjoy combining the latest technologies and tools with best practices to accelerate development
  • Passionate about getting creative with AI to work around its shortcomings in creating automated solutions to complex problems
  • Interest in the art of programming languages (design, compilers and syntax parsing, etc)
  • Comfortable navigating complex domains and building intuitive software for them
  • Thrive in an environment that prefers prototypes over proposals
  • Proactive in sharing ideas and informed opinions with others
  • Attention to detail and quality to anticipate edge cases ahead of time
  • A growth mindset and willingness to learn new things
  • 6+ years of experience working as a backend or fullstack engineer

What we offer

  • Amazing team culture and environment
  • Named by Built In as Best Start-up to work for 2024, 2025 and Forbes 2022
  • Competitive salary and equity package
  • Unlimited PTO
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