Senior Full-Stack Engineer, AI-Powered Search & Matching

Greenhouse Software; Argentina; Remote; ARS 181,565,000 - 272,348,000; Full time

Benefits offered by this job

Remote-first company

Job summary

Greenhouse Software seeks an experienced engineer to join as an independent contractor in Argentina for approximately 12 months. You will work on Talent Matching and Rediscovery, building full-stack experiences and search-backed capabilities using OpenSearch or Elasticsearch.

You’ll collaborate with a distributed US & Canada team, deliver scalable production code, and apply AI/ML techniques to improve relevance and ranking.

Qualifications

• 5+ years of production code experience.
• 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.
• Deep experience with OpenSearch or Elasticsearch in production, including indexing, query design, relevance tuning, and performance trade-offs.
• Experience building search, ranking, recommendation, or matching systems.
• Practical experience applying AI or ML techniques in production (embeddings, semantic search, ranking).
• Experience collaborating with Product and Design in ambiguous, user-facing problem spaces.
• Experience with analytical databases is a plus.

Responsibilities

• Collaborate with Product Managers and Designers to define requirements and build product experiences from conception through delivery.
• 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, query design, relevance tuning, ranking, and semantic retrieval.
• Develop matching systems that combine keyword, structured, semantic, and AI/ML signals to improve match quality.
• Partner with Applied ML and cross-functional engineering teams to evaluate trade-offs across relevance, latency, reliability, infrastructure cost, and user trust.
• Build evaluation, observability, testing, and feedback mechanisms to continuously improve matching quality.
• Develop clean, efficient, maintainable, and scalable production code for core services.
• Contribute to code reviews and engineering practices.
• Additional projects as needed within the scope of the engagement.

Skills

5+ years production code

Ruby, C#, Java, Python

JavaScript/TypeScript, React

Full-stack development

OpenSearch/Elasticsearch production

AI/ML techniques in production

Collaboration with product/design

Analytical databases (a plus)

Tools

OpenSearch

Elasticsearch

Ruby on Rails

React

TypeScript

Job description

Greenhouse Software seeks an experienced engineer to join as an independent contractor in Argentina for approximately 12 months. You will work on Talent Matching and Rediscovery, building full-stack experiences and search-backed capabilities using OpenSearch or Elasticsearch.

You’ll collaborate with a distributed US & Canada team, deliver scalable production code, and apply AI/ML techniques to improve relevance and ranking.