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Senior Software Engineer I

Greenhouse


Job Location:

Ontario - Canada

Yearly Salary: CAD 117500 - 164500
Posted: 20 September 2026 (6 hours ago)
Application Deadline: 18 December 2026
Vacancies: 1 Vacancy

Job Summary

Greenhouse is searching for a Senior Full Stack Engineer to join our Employer Experience & Talent Discovery team. This team builds the experiences and signals that help employers find the right talent faster while creating the foundation for a trusted talent discovery ecosystem.

In this role youll contribute to Talent Matching Talent Rediscovery and related employer-facing experiences. Youll work across the stack to build product capabilities and the search and matching systems behind them with a particular focus on OpenSearch or Elasticsearch and practical applications of AI to matching ranking and search relevance.

Who will love this job
  • A mentor youre passionate about guiding and developing your peers sharing your knowledge leading projects and contributing to the teams collective success
  • A doer youre driven to get things done act with agility and adapt seamlessly to dynamic environments
  • A pragmatic architect you evaluate trade-offs between performance relevance maintainability and cost choosing patterns that simplify complexity for the long term
  • A problem solver you think about the bigger picture connect the dots and efficiently resolve technical and product challenges
  • An excellent communicator you explain technical processes clearly including to non-engineers and work well with Product Design Data and Applied ML partners
  • A search and matching builder you enjoy turning complex retrieval and ranking problems into intuitive trustworthy product experience
What youll do
  • Collaborate closely with Product Managers and Designers to define requirements and drive product development from conception to launch
  • Build and improve full-stack experiences for Talent Matching Talent Rediscovery and related talent discovery workflows
  • Design and ship search-backed capabilities using OpenSearch or Elasticsearch including indexing strategies query design relevance tuning ranking improvements and semantic retrieval patterns
  • Develop matching systems that combine keyword structured and semantic signals applying AI/ML techniques such as embeddings similarity search classification and ranking to improve match quality and consistency
  • Partner with Applied ML and cross-functional engineering teams to evaluate trade-offs across relevance latency reliability infrastructure cost and user trust
  • Mentor and guide junior and mid-level engineers conduct thorough code reviews and contribute to team engineering practices
You should have
  • 5 years of experience writing production code
  • Deep experience with OpenSearch or Elasticsearch in production including indexing query design relevance tuning and performance trade-offs
  • Experience with Ruby C# Java or Python; Ruby on Rails preferred
  • Strong JavaScript or TypeScript fundamentals including React
  • Full-stack experience across backend systems APIs data modeling and modern frontend development
  • Experience building search ranking recommendation or matching systems
  • Practical experience applying AI or ML techniques in production such as embeddings semantic search classification or ranking
  • Experience collaborating with Product and Design in ambiguous user-facing problem spaces
  • Experience with analytical databases a plus
  • Your own unique talents! Your background has given you a unique perspective and set of transferable skills that arent always in alignment with a given role - but those are qualities we value at Greenhouse. If you dont meet 100% of the qualifications outlined above we still strongly encourage you to apply

Applicants must be legally eligible to work in Canada as of the start date chosen by the Company.

For purposes of processing or administering your employment relationship personal information that you provide to the Company may be transferred to and accessed by an affiliate in the United States or elsewhere or to agents and contractors (such as payroll companies insurance companies information technology consultants etc.) that provide services to the Company.

The national pay range for this role is $117500 - $164500 CAD. Individual compensation will be commensurate with the candidates experience and qualifications. Certain roles may be eligible for additional compensation including stock option awards bonuses and merit increases. Additionally certain roles have the opportunity to receive sales commissions that are based on the terms of the sales commission plan applicable to the role.

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Who we are

At Greenhouse we live by our mission through using our own product to help us hire the right person for the job every time. Were committed to designing and responsibly using AI tools to transform how we work while keeping people at the center. We are a remote-first company and have shared office spaces in New York City and Ireland and optional co-working spaces that give us flexibility to do our best work anywhere. We take an active role in our growth through a performance review program thats committed to providing actionable feedback and a bonus structure that rewards great performance. We believe that bringing together a variety of perspectives makes us a stronger company and we nurture leaders who create an inclusive culture and invest into employee resource groups that celebrate our differences and life experiences. Were proud to have built anaward-winning culture thats been recognized as Fortunes Best Places to Work and Inc.s Best Workplaces multiple years in a row.

Greenhouse Software is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race color religion sex (including pregnancy sexual orientation or gender identity) national origin age disability genetic information veteran status or any other characteristic protected by applicable local laws regulations and ordinances. If you need assistance and/or a reasonable accommodation during the application process reach out to

Emails about job opportunities at Greenhouse Software are only offered by employees with @ email addresses. See this page on our website if you suspect a phishing scam.


Required Experience:

Senior IC


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