More jobs:
Job Description & How to Apply Below
About Delta Intelligent Building Technologies (Canada) Inc. (formerly known as Delta Controls) Delta Intelligent Building Technologies (Canada) Inc. is a leading building controls manufacturer. For over three decades, we have provided innovative building automation solutions for commercial, healthcare, education, and leisure facilities.
Job Summary We're looking for an Intermediate Graph Developer to help build a next-generation semantic graph data platform - a “digital twin” layer for buildings, equipment, and their relationships.
This platform will power AI-assisted querying and insights by ingesting RDF-based semantic data, exposing it through APIs and query interfaces, and supporting both cloud and on-prem deployments (with future extensibility to edge environments).
Duties and Responsibilities Graph Data & Semantic Modeling Design and evolve a labeled graph model for entities, relationships, and properties
Apply RDF, JSON‑LD, and built‑environment ontologies
Extend domain models as needed for real‑world building systems
Storage Layer & Performance Work with graph databases or RDF stores
Enable efficient traversal queries across large, multi‑building datasets
Ensure scalable and portable architecture
RDF Ingestion & Validation Implement ingestion for Turtle, JSON‑LD, and RDF/XML formats
Maintain triple integrity and query ability after import
Add robust error handling and optional SHACL validation
Support incremental ingestion workflows
Query Interface Build and validate a SPARQL‑compatible (or equivalent) query endpoint
Support multi‑hop queries and scoped aggregation (per‑building vs global)
Enable natural follow‑up query patterns (e.g., narrowing results by floor or system type)
REST API Development Create clean, well‑documented REST endpoints for entity access and CRUD operations
Support JSON‑LD and pagination for large datasets
Security & Permissions Integrate external identity/authorization systems
Enforce consistent access control across APIs and query layers
Data Updates & Enrichment Build event‑driven update mechanisms
Support AI‑assisted classification and enrichment with provenance tracking
Attachments & Metadata Link documents and media (PDF, DWG, images, spreadsheets, etc.) to graph entities
Store and expose searchable metadata for attachments
Deployment & Operations Deliver containerized services (Docker Compose + Kubernetes‑ready)
Support AWS/GCP + on‑prem deployments
Implement health checks, TLS, and environment‑based configuration
Required
Skills and Abilities
3+ years of backend software engineering experience building data‑intensive services
Experience in Python object‑oriented programming (OOP), Terraform Infrastructure as Code (IaC), and Amazon Web Services (AWS) cloud services
1–2+ years of experience with graph databases, RDF triple stores, or semantic systems
Working knowledge of RDF, JSON‑LD, URIs, and SPARQL (or equivalent graph query patterns)
Experience building REST APIs with clear contracts and robust error handling
Experience deploying services on AWS or GCP, with interest in on‑prem deployments
Strong performance mindset, including indexing, query profiling, and debugging slow queries
Preferred
Skills and Abilities
Familiarity with building and equipment domain modeling, including spaces, equipment, points, and relationships
Experience with SHACL validation and RDF ingestion pipelines
Experience designing multi‑environment systems (cloud, on‑prem, edge) with consistent APIs and feature gating
Exposure to AI‑enabled data systems, including agents, retrieval systems, provenance, and grounding strategies
Work Location:
Hybrid (3 days on‑site, 2 days remote) City: Surrey Type: Full‑time, Permanent Salary: $95,000 to $120,000 CAD
This range reflects the minimum and maximum target payable for the base salary of new hires across all Canadian locations. Actual compensation may vary outside this range and is dependent on various factors.
Why work for us?
Employee & safety centric culture
Flexible hours and scheduling available
Competitive total compensation along with generous vacation allowances
Three weeks of vacation
In‑house & external training provided along with education support and opportunities for growth
Company funded annual personal development budget
Financial perks & planning such as group RRSP & company match
Employer paid premiums for extended healthcare and family‑focused benefits (health, vision and dental)
Travel insurance coverage and access to the Employee Assistance Program (EAP)
Wellness - onsite fitness center & company reimbursement for personal gym memberships
Internal Recognition & Service Awards
Employee Referral bonuses
Transit accessible with free onsite parking
Regular company events such as "Food Truck Fridays", Lunch & Learn and other planned activities
#J-18808-Ljbffr
Note that applications are not being accepted from your jurisdiction for this job currently via this jobsite. Candidate preferences are the decision of the Employer or Recruiting Agent, and are controlled by them alone.
To Search, View & Apply for jobs on this site that accept applications from your location or country, tap here to make a Search:
To Search, View & Apply for jobs on this site that accept applications from your location or country, tap here to make a Search:
Search for further Jobs Here:
×