🎁 Before you apply, rehearse this interview. Create your free WorkMundi account and get an Interview Training on HelpsYouSpeak — no cost, no card. I want my training →
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. Requirements Top 3 Required Skills: 1. IBM Financial transaction 2. Payment flow 3. Support Modernization Detailed Job Description: ? Design, develop, and maintain applications built on IBM Financial Transaction Manager (FTM) to support core payments processing. ? Contribute to the development of payment flows supporting transaction processing. ? Build and support integrations Location Toronto , ON Work location On site Salary $ 10,000 MONTH monthly Terms of employment Full time Starts as soon as possible vacancies 1 vacancy Source Talent.com #633398841857345225 Various locations Toronto, ON
Here's where they are and how to stand out in your next interview.
24.795Jobs
9.577IN
74%EN
That number includes positions in India (9,577), Poland (3,429), the United States (1,753), Singapore (787), and Brazil (779). If you're looking to move or work remotely, check which countries match your goals — then filter WorkMundi by location to see what's actually hiring near you.
Most developer ads you'll see are written in English: 18,397 of the 24,795. That doesn't tell you whether the job itself requires you to speak English or work in English daily, so read each posting carefully. Don't assume the language of the ad matches the language of the team.
The employers posting the most developer roles are Link Group (369 jobs), Upvanta (257), jobgether (226), and OfferZen (212). If you're applying to any of these, research their hiring patterns. They move fast and post often, which means they're either scaling hard or replacing people who didn't fit.
In your interview, expect this: 'Walk me through the last time you had to debug something that took you more than an hour. What was it, what did you try first, and what would you do differently?' Hiring managers ask this to see if you think systematically or just try random fixes. Have a real example ready with specifics.