NestJS Developer

Iris Software Inc.; Toronto; Hybrid; CAD 100,000 - 140,000; Full time

Job summary

Iris Software Inc. is seeking a NestJS Developer in Toronto, ON for a long-term, hybrid role. The position requires strong backend engineering experience and hands-on NestJS expertise, with emphasis on API design and event-driven systems.

The role involves working with NX monorepos, Kafka-based messaging, and MongoDB for low-latency workloads, plus building BFF/API orchestration across multiple upstream services.

Qualifications

• 5-10 years backend engineering experience.
• Strong hands-on expertise with NestJS (modules, DI, guards, interceptors, pipes, validation, Swagger/OpenAPI).
• Experience with NX monorepos (shared libs, dependency graph, affected builds/tests).
• Advanced TypeScript/Node.js skills and API/event contract design.

Responsibilities

• 5-10 years of backend engineering experience.
• Develop and maintain backend services using NestJS and TypeScript.
• Design and implement API contracts and event-driven architectures.
• Work with Kafka or equivalent for messaging and retries, idempotency, and schema evolution.
• Build and optimize MongoDB-backed data workloads.
• Create BFF/API orchestration layers across multiple upstream services.

Skills

NestJS

TypeScript

Node.js

Kafka

MongoDB

API design

NX monorepos

Event-driven

Tools

NX monorepos

Job description

Iris's Fortune 100 direct client is looking for NestJS Developer

Position: NestJS Developer

Employment Type: Long term

Location: Toronto, ON

Hybrid : 4 days office , 1 day work from home

Client : Banking

Key Responsibilities:

• 5-10 years of backend engineering experience.
• Strong hands-on expertise with NestJS (modules, DI, guards, interceptors, pipes, validation, Swagger/OpenAPI).
• Practical experience with NX monorepos (shared libs, dependency graph, affected builds/tests).
• Advanced TypeScript/Node.js skills and API/event contract design.
• Experience with event-driven systems (Kafka or equivalent), including retries, idempotency, and schema/version evolution.
• Solid MongoDB experience for low-latency operational workloads.
• Experience building BFF/API orchestration layers across multiple upstream services

About Iris Software Inc.

With 4,000+ associates and offices in India, U.S.A. and Canada. Iris Software delivers technology services and solutions that help clients complete fast, far-reaching digital transformations and achieve their business goals. A strategic partner to Fortune 500 and other top companies in financial services and many other industries, Iris provides a value-driven approach - a unique blend of highly-skilled specialists, software engineering expertise, cutting-edge technology, and flexible engagement models. High customer satisfaction has translated into long-standing relationships and preferred-partner status with many of our clients, who rely on our 30+ years of technical and domain expertise to future-proof their enterprises. Associates of Iris work on mission-critical applications supported by a workplace culture that has won numerous awards in the last few years, including Certified Great Place to Work in India; Top 25 GPW in IT & IT-BPM; Ambition Box Best Place to Work, #3 in IT/ITES; and Top Workplace NJ-USA