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Posted 3 months ago

Backend Developer – TypeScript/Node.js, NestJS & Kafka

@ Astra North Infoteck Inc.

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Toronto, Ontario

Contract8+ years experience
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SIGNALS

Overview

Astra North Infoteck Inc. is hiring a senior backend engineer on contract in Toronto, hybrid with four days a week in the office, to help modernize a legacy platform into a cloud-native architecture. The work covers NX monorepo services, NestJS microservices and a BFF gateway, event-driven integration with Kafka, and MongoDB and Snowflake data patterns. The posting requires 8+ years of software engineering experience, although its qualifications section lists 5-10 years of backend experience.

Responsibilities:

  • Build and scale NestJS services in an NX monorepo
  • Develop a NestJS BFF gateway with JWT and OBO token exchange
  • Build Kafka ingestion services and async event workers
  • Contribute to MongoDB and Snowflake data-layer design
  • Maintain shared libraries and API and event contracts

Requirements summary:

  • 8+ years of software engineering experience (5-10 years backend in qualifications)
  • Strong hands-on NestJS and TypeScript/Node.js expertise
  • Practical NX monorepo experience
  • Event-driven systems experience with Kafka or equivalent
  • Solid MongoDB experience for operational workloads
  • Ability to read C# and/or Java legacy code (preferred)

Tools & skills

NestJSNXKafkaMongoDBSnowflakeAzure Entra IDGraphQLKubernetesOpenShift
Source and dates

Source type not verified · zoho

Employer posting date
2026-08-18
First seen by our source
2026-10-11
Source record updated
2026-10-11

These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.

Job details

SenioritySenior
DepartmentSoftware development
Experience8+ years
Travelair: none · ground: none
Work settingOffice
PositionMostly sitting
Physical demandsphysical low · computer high

Summary and details written by AI from the posting; the employer’s posting is the authority.

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Astra North Infoteck Inc.

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Job description

Senior Software Engineer – NX, NestJS, TypeScript/Node.js, Kafka & MongoDB

Toronto, ON - Hybrid (4 Days WFO)

Experience: 8+ years in software engineering| with strong hands-on experience in TypeScript/Node.js| NestJS| and NX monorepo delivery

Role Summary

We are hiring a senior engineer to help deliver the AVA Modernization program| moving a legacy platform to a cloud-native architecture using NX monorepo| NestJS services| event-driven integration| and MongoDB/Snowflake data patterns. This is a hands-on role with architecture influence across BFF| microservices| ingestors| and workers.

Key Responsibilities

• Build and scale services within a single NX monorepo using shared libraries and dependency-aware CI/CD.

• Develop and evolve a NestJS BFF Gateway for multiple frontends| including JWT validation and OBO token exchange with Azure Entra ID.

• Implement internal NestJS microservices with clear domain ownership and independent deployment.

• Build ingestion services that consume external events| transform payloads| persist operational data| and publish internal domain events.

• Develop async workers that process internal events for side effects (notifications| indexing| jobs) without tight service coupling.

• Contribute to data-layer design:

• MongoDB for operational/current-state reads

• Snowflake for analytical/reporting workloads

• Create and maintain shared libs/ contracts (DTOs| event payloads| auth utilities| API clients| validation rules).

• Ensure strong testing| observability| performance| and production reliability standards.

Required Qualifications

• 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.

• Experience building BFF/API orchestration layers across multiple upstream services.

• Solid MongoDB experience for low-latency operational workloads.

• Strong communication and collaboration skills in cross-functional delivery teams.

Preferred Qualifications

• Ability to navigate and analyze C# and/or Java codebases at a working level a significant portion of source-of-truth analysis will involve reading and interpreting existing legacy code in these languages to understand current business logic and inform how it should be reshaped to fit the new architecture.

• Experience with Azure Entra ID and OAuth/OBO flows.

• Exposure to GraphQL supergraph integrations from BFF layers.

• Snowflake or similar analytical platform experience.

• Experience migrating legacy services to containerized/cloud-native architectures.

• Kubernetes/OpenShift delivery exposure.


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