Senior Software Engineer

Allpax•Oakville, ON

3d•$116,000 - $135,000•Hybrid

About The Position

ZPI, the developer of the industry leading Zarpac Performance Index (ZPI) manufacturing performance improvement software, is seeking a Senior Backend Engineer to help evolve and operate our existing .NET‑based backend platform as it expands into cloud and edge deployment models. This position is primarily based in-office, with the flexibility to work from home up to three days per week. This role is intentionally focused on building on our current architecture, not replacing it. You will work primarily in a .NET backend environment, supporting cloud‑hosted services and edge‑deployed components, while collaborating closely with a React‑based web frontend.

Requirements

7 to 10 years of experience building and maintaining backend services, preferably in .NET or similar ecosystems
Experience deploying .NET services in cloud or hybrid environments
Comfort working within an established codebase and improving it incrementally
Experience operating production systems (debugging, reliability, performance)
Solid understanding of APIs, data flow, and service boundaries
Ability to reason about distributed systems and real‑world failure modes

Nice To Haves

Experience with edge, on‑prem, or intermittently connected systems
Familiarity with CI/CD, monitoring, and operational tooling
Infrastructure‑as‑Code exposure (tool choice is less important than concepts)
Experience collaborating closely with frontend teams (React or similar)

Responsibilities

Design, build, and maintain backend services and APIs within an existing .NET codebase
Implement background services, schedulers, and data‑processing components
Own data ingestion, persistence, and service‑to‑service communication
Improve and extend current systems with a focus on stability, clarity, and maintainability
Deploy and operate services in cloud and hybrid environments
Help shape how our existing backend runs in the cloud, without forcing premature vendor lock‑in
Own CI/CD pipelines, releases, monitoring, and production support
Make architectural and operational decisions that the entire team can understand and maintain
Design and maintain edge‑side services or agents, built using the same core backend technologies where possible
Support: Data collection and buffering near devices, Secure and reliable communication with cloud services
Design edge ↔ cloud contracts that align with our current backend model
Handle real‑world constraints such as intermittent connectivity, versioning, and staged deployments