Staff Full-Stack Engineer: .NET, React & AI

Finlink Group; Aurora; On-site; CAD 110,000 - 170,000; Full time

Benefits offered by this job

Discretionary bonus

Health benefits

On-site parking

Team events

Career growth

Job summary

Finlink Group is seeking a Staff Full-Stack Engineer to own product delivery across the full technology stack, leveraging .NET, React, and AI-enabled tooling. You will design, build, and operate scalable, AI-centric systems powering multiple brands from a shared foundation.

You will work hands-on on features, lead technical initiatives, and ensure production-grade quality with strong emphasis on observability, security, and rapid yet reliable delivery.

Qualifications

• Extensive production-grade full-stack experience.
• Strong .NET/C#, REST APIs, and Next.js/React with SSR and SSE.
• Design/operate highly available, high-throughput systems at scale.
• Hands-on with MongoDB, PostgreSQL, Redis; select storage per workload.
• Experience building event-driven architectures with Kafka.
• Proven delivery of third-party and B2B API integrations.
• Deep API security knowledge: OAuth, HMAC, idempotency, replay protection, auditing.
• Familiar with AI-assisted development tools and coding agents.
• Experience with monitoring, observability, CI/CD, and incident triage (Sentry).

Responsibilities

• Own end-to-end delivery of product features from concept to production.
• Build and maintain third-party and B2B integrations on a shared platform.
• Leverage AI coding agents to accelerate delivery while preserving quality.
• Design, build, and operate highly available, high-performance distributed systems.
• Mentor teams, establish patterns, and remove technical roadblocks across workstreams.
• Monitor production, investigate issues, and improve reliability and deployment processes.

Skills

Full-stack expertise

NET/C#

React/Next.js

API design

Kafka

OAuth/HMAC security

AI-assisted development

CI/CD/Sentry

Tools

MongoDB

PostgreSQL

Redis

SSE

Job description

Finlink Group is seeking a Staff Full-Stack Engineer to own product delivery across the full technology stack, leveraging .NET, React, and AI-enabled tooling. You will design, build, and operate scalable, AI-centric systems powering multiple brands from a shared foundation.

You will work hands-on on features, lead technical initiatives, and ensure production-grade quality with strong emphasis on observability, security, and rapid yet reliable delivery.