Senior Software Developer, Search

MaintainX is the world's leading AI-powered maintenance and asset management platform, serving 14,000+ customers including Duracell, Shell, Cintas, and Brenntag. We raised $150M in Series D funding led by Bessemer Venture Partners and Bain Capital Ventures, bringing our total funding to $254M. We were named to the Forbes 2025 Cloud 100, the definitive ranking of the top 100 private cloud companies in the world. We're growing fast and hiring the talent to match. MaintainX is the world leading mobile-first workflow management platform for industrial and frontline workers. We are a modern IoT enabled cloud based tool for maintenance, safety, and operations on equipment and facilities. MaintainX powers operational excellence for 12,000+ businesses including Duracell, Univar Solutions Inc., Titan America, McDonalds, Brenntag, Cintas, Michaels, and Shell. We recently completed a $150 million Series D round, bringing our total funding to $254 million and valuing the company at $2.5 billion. What You'll Do: Design and build MaintainX’s end-to-end search and retrieval platform — from indexing pipelines and ranking systems to AI-facing query layers. Partner with product and domain experts to model search across core entities like work orders, assets, and procedures, ensuring high-relevance results. Ship fast, iterate fast, launch early versions, gather feedback, and improve rapidly. Operate and optimize distributed systems, ensuring reliability, performance, and scalability under real-world load. Drive architectural decisions, balancing correctness, performance, and long-term maintainability. Own integrations between search systems and upstream data sources. Explore semantic search, vector retrieval, and AI-enhanced relevance using modern ML tooling. On-call duties (currently business hours) About You: Hands-on experience designing, building, and operating production-grade search systems end-to-end — including indexing, query execution, relevance tuning, and infrastructure — using technologies such as Elasticsearch, OpenSearch, Lucene, Solr, or similar. Understanding of embeddings, chunking, and retrieval strategies. Familiarity with search-specific tuning: analyzers, BM25, shard sizing, cluster health, and relevance optimization. Comfort taking systems from implementation to deployment and production operation, working across backend services, data pipelines, and integration points as needed. An expert level of English, both spoken and written, is required, as the individual will need to lead platform engineering managers across multiple teams, present technical priorities to executive stakeholders, and align with engineering leaders outside Québec on a daily basis. Nice to Have: Experience evaluating and improving search relevance using both qualitative analysis and quantitative metrics. Experience shipping AI-powered or LLM-integrated backend systems Comfortable using modern AI tools like GPT, Copilot, or Cursor to boost productivity and streamline development. Understanding of multi-tenancy and data security, including ACLs, field-level access controls, and secure index partitioning. Experience building observability and success metrics into systems to monitor performance, usage, and impact. What’s in it for you: Competitive salary and meaningful equity opportunities. Healthcare, dental, and vision coverage. 401(k) / RRSP enrollment program. Take what you need PTO. A Work Culture where: You’ll work alongside folks across the globe that reflect the MaintainX values: Smart Humble Optimists. We believe in meritocracy, where ideas and effort are publicly celebrated. Our mission is to deliver one platform for maintenance, repair & operations teams to keep the physical world running. We believe the greatest asset in any organization is the people. That’s why we built an intuitive, mobile-first solution to help boost productivity and collaboration across teams and locations. MaintainX is committed to creating a diverse environment. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Our mission is to deliver one platform for maintenance, repair & operations teams to keep the physical world running. We believe the greatest asset in any organization is the people. That’s why we built an intuitive, mobile-first solution to help boost productivity and collaboration across teams and locations. MaintainX is committed to creating a diverse environment. All qualified applicants will receive consideration for employment without regard to race, colour, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

Design and build an end-to-end search and retrieval platform, including indexing pipelines and ranking systems. Optimize distributed systems for reliability and scalability while integrating search systems with upstream data sources.

Requires hands-on experience building production-grade search systems using technologies like Elasticsearch or Solr. Candidates should understand embeddings, retrieval strategies, and search-specific tuning such as BM25 and shard sizing.

• Competitive Salary • Equity Opportunities • Healthcare • Dental Coverage • Vision Coverage • 401(k) / RRSP Enrollment Program • Paid Time Off

Identified from the job description. Confirm important requirements above.

• Elasticsearch
• OpenSearch
• Lucene
• Solr
• Vector Retrieval
• Semantic Search
• Distributed Systems
• Indexing Pipelines
• Relevance Tuning
• Backend Development
• Data Pipelines
• Multi-tenancy
• LLM Integration
• Observability
• API Design
• ML Tooling

• Software
• Technology
• Engineering
• Data & Analytics

Minimum experience

5+ years

Posting language

English

Working hours

40 hours per week

Location requirements

Country, Canada