Expert C# Software Developer — Backend APIs & Services — Montreal

Abbeal SAS; Montreal (administrative region); Hybrid; CAD 110,000 - 140,000; Full time

Job summary

Abbeal SAS seeks an Expert C# Software Developer to design and implement robust backend APIs and microservices in a hybrid Montreal setup. You will work on API gateways and an event-driven architecture with emphasis on security and observability.

The role targets senior developers with 10+ years C# experience, hands-on with API gateways, and strong skills in Grafana, Prometheus, and OpenTelemetry. Montreal, hybrid with on-site days.

Qualifications

• 10+ years proven C# expertise.
• Experience with microservices and event-driven APIs.
• Hands-on with API gateways (Apigee, Kong, Traefik).

Responsibilities

• Design and build robust APIs and backend services in C#.
• Develop and maintain reusable microservices in an event-driven architecture.
• Ensure observability with Grafana/Prometheus/OpenTelemetry and strong security (OIDC/OAuth2/SAML 2.0).
• Collaborate on API gateways and partner integrations for scalable solutions.

Skills

C# expertise

Microservices

Event-driven APIs

API gateways

Grafana

Prometheus

OpenTelemetry

OIDC/OAuth2/SAML 2.0

Tools

Apigee

Kong

Traefik

Job description

Expert C# Software Developer — Backend APIs & Services — Montreal

A mobility player is looking for an expert C# developer to build API integration services and reusable microservices. Long-term engagement, hybrid Montreal.

A mobility player is evolving its partner integration platform and is looking for an expert C# software developer.

Context

The team builds API integration services for its mobility partners: API gateways, reusable microservices, an API and events portal.

The role

You design and build robust APIs and backend services in C#, within an event-driven microservices architecture, with strong observability and security requirements.

Profile

• Proven C# expertise and related frameworks (10+ years)
• Microservices architecture, event-driven APIs, API gateways (Apigee, Kong, Traefik)
• Observability (Grafana, Prometheus, OpenTelemetry)
• API security (OIDC, OAuth2, SAML 2.0)

Terms

• Montreal, hybrid (a few days per month on-site)