MERN Stack Developer

Tata Consultancy Services; Toronto; On-site; CAD 100,000 - 120,000; Full time

Job summary

Tata Consultancy Services Canada Inc. is actively seeking a Senior Full-Stack Software Engineer to help drive the roadmap for Group Benefits Experience assets, the core digital gateway for Clients and Members in Canada.

This role emphasizes architecture, modern engineering practices, and building healthy teams in a fast-paced, outcome-driven environment. You will work across React front ends, Node.js back ends, GraphQL, RESTful services, MongoDB, and .NET/Java ecosystems, leveraging cloud

Qualifications

• Experience designing, developing, and maintaining scalable web applications.
• Experience building back-end services and APIs using Node.js with solid API design and maintainability.
• Exposure to .NET and/or Java ecosystems, with ability to contribute to modernization efforts.

Responsibilities

• Shape and evolve end-to-end architecture in partnership with Architecture, Product and Platform teams.
• Design, build, and operate scalable, secure, high-performing solutions across React front ends, Node.js APIs, GraphQL, REST, MongoDB, and .NET/Java ecosystems.
• Develop modern front-end components using React.js with responsive, accessible, and reusable UI patterns.
• Build, manage, and evolve back-end services and APIs using Node.js, including RESTful and asynchronous patterns.
• Drive engineering excellence with testing, CI/CD, automation, and observability.

Skills

React

Node.js

Agile methodologies

Cloud platforms

SQL/NoSQL

Git

Code reviews

Tools

Azure Kubernetes

Terraform

MongoDB Atlas

K9s

GitHub Actions

New Relic

Moogsoft

Job description

Job Description

Tata Consultancy Services (TCS) is an equal opportunity employer, and embraces diversity in race, nationality, ethnicity, gender, age, physical ability, neurodiversity, and sexual orientation, to create a workforce that reflects the societies we operate in. Our continued commitment to Culture and Diversity is reflected in our people stories across our workforce and implemented through equitable workplace policies and processes.

Tata Consultancy Services (BSE: 532540, NSE: TCS) is the technology partner of choice for industry-leading organizations worldwide. Since its inception in 1968, TCS has upheld the highest standards of innovation, engineering excellence and customer service.

It has set an aspiration to become the world's largest AI-led technology services company and is enabling its clients to transform themselves across the full AI stack, from infrastructure to intelligence.

Rooted in the heritage of the Tata Group, TCS is focused on creating long term value for its clients, its investors, its employees, and the community at large. With a highly skilled workforce spread across 56 countries and 194 service delivery centers across the world, the company has been recognized as a top employer in six continents. With the ability to rapidly apply and scale new technologies, the company has built long term partnerships with its clients. Many of these relationships have endured into decades and navigated every technology cycle, from mainframes in the 1970s to artificial intelligence today.

We are seeking a Senior Full‑Stack Software Engineer to help drive the roadmap for our Group Benefits Experience assets, our primary digital gateway for Clients and Members managing their benefits and health, and a core part of how Canadians experience Manulife online.

This is an opportunity for an experienced engineer who is passionate about technical excellence, architecture, and building strong, healthy engineering teams in a fast-paced, outcome-driven environment. You’ll bring clarity amid shifting priorities, take ownership of complex engineering work, enable sustainable delivery without compromising quality, and help foster a culture that embraces modern engineering practices, including the thoughtful use of AI.

Job Responsibilities :-

Technical Leadership & Architecture

• Shape and evolve the end-to-end architecture in partnership with Architecture, Product and Platform teams, influencing technical strategy to modernize our stack and deliver incremental, high-value outcomes.
• Design, build, and operate scalable, secure, and high-performing solutions across React front ends, Node.js and Express.js APIs, GraphQL, RESTful services, MongoDB, and .NET/Java ecosystems, ensuring long-term maintainability and performance.
• Develop and maintain modern front-end components using React.js, with a focus on clean design, responsiveness, accessibility, performance, and reusable UI patterns.
• Build, manage, and evolve back-end services and APIs using Node.js, including RESTful and asynchronous patterns that support scalable digital experiences.
• Debug and resolve technical issues across the full stack, identifying root causes and implementing durable, maintainable solutions.

Engineering Excellence & Delivery

• Elevate engineering maturity by driving best practices in testing, deployment, CI/CD, automation, and operational excellence, using telemetry and observability tools such as New Relic and Moogsoft to continuously improve reliability and system performance.
• Deliver high-quality software through disciplined craftsmanship, balancing speed with innovation while consistently raising the bar on code quality.
• Write clean, modular, efficient, and scalable code with strong attention to maintainability, security, performance, and long-term platform health.
• Take ownership of engineering tasks and outcomes, working independently where needed while staying aligned with team goals, standards, and delivery commitments.
• Contribute to secure and reliable deployment practices, including awareness of CI/CD pipelines, cloud deployment patterns, and production readiness standards.
• Collaborate deeply across engineering, quality, product, architecture, security, and other cross-functional teams to define, refine, and implement new features that deliver meaningful customer and business value.
• Partner with engineers through pairing, mentoring, and thoughtful code reviews to build a strong, inclusive, and high-performing engineering culture.
• Contribute to and leverage open source and inner source ecosystems, creating reusable capabilities and sharing knowledge that scales across teams.
• Work effectively in Agile and Scaled Agile environments, contributing to planning, delivery, continuous improvement, and team-level execution.

AI-Enabled Innovation & Ownership

• Champion the responsible use of AI tools to accelerate development, reduce manual effort, and enhance decision-making while maintaining high standards for safety, quality, and compliance.
• Bring curiosity, ownership, and pride to your work, continuously learning, improving, and delivering impactful solutions that benefit customers, colleagues, and the broader engineering organization.

What We Are Looking For

• Experience designing, developing, and maintaining scalable, secure, responsive, and performant web applications.
• Experience building and managing back-end services and APIs using Node.js, with a solid understanding of service design, API contracts, error handling, and maintainability.
• Exposure to .NET and/or Java ecosystems, with the ability to contribute to modernization efforts across legacy and modern technology stacks.
• Extensive experience with cloud platforms and modern engineering tooling, including Azure Kubernetes, APIM, K9s, Terraform, MongoDB Atlas, and related deployment patterns.
• Familiarity with SQL databases in addition to experience with NoSQL platforms such as MongoDB.
• Experience with version control systems such as Git, including branching strategies, pull requests, and code review practices.
• Ability to write clean, modular, scalable, and efficient code with minimal supervision.
• Ability to work independently, take ownership of tasks, and drive outcomes through ambiguity while collaborating effectively with the broader team.
• Experience designing scalable, secure product solutions and reusable engineering assets.
• Ability to drive engineering maturity across test automation, CI/CD (GitHub Actions), deployment practices, observability, and operational excellence.
• Strong risk-aware mindset with the ability to balance technical delivery, quality, security, and risk at all times.
• Experience working in Agile or Scaled Agile environments is preferred.
• Experience mentoring and coaching engineers, with a commitment to building your own skills through continuous learning and exploration.
• Experience building responsible AI agents, skills, and integrating AI-enabled capabilities into development pipelines is an asset.

Salary Range - CA$ 100,000 - CA$ 120,000 Per Year

TCS does not use artificial intelligence tools for candidate screening or evaluation. This post is for a current vacancy. The hiring process includes an initial screening, followed by a technical evaluation and managerial discussion.

Tata Consultancy Services Canada Inc. is committed to meeting the accessibility needs of all individuals in accordance with the Accessibility for Ontarians with Disabilities Act (AODA) and the Ontario Human Rights Code (OHRC). Should you require accommodation during the recruitment and selection process, please inform Human Resources.

Thank you for your interest in TCS. Candidates that meet the qualifications for this position will be contacted within a 2-week period. We invite you to continue to apply for other opportunities that match your profile.