Senior Full Stack Engineer; Tech Lead

Position: Senior Full Stack Engineer (Tech Lead)

Born digital, UST transforms lives through the power of technology. We walk alongside our clients and partners, embedding innovation and agility into everything they do. We help them create transformative experiences and human‑centered solutions for a better world.

Role Description Senior Full Stack Engineer (Tech Lead)

We are seeking a Senior Full Stack Engineer (Tech Lead) with strong technical leadership and hands‑on engineering depth to own delivery end‑to‑end and raise engineering standards across the team.

The Opportunity

• Software Engineering Excellence
• Design, build, and own high‑quality services and user interfaces using React and the broader front‑end ecosystem (Type Script, Webpack/Vite, testing frameworks, linting/tooling).
• Lead and perform code reviews, ensuring readability, maintainability, testability, performance, and security.
• Champion CI/CD, automated testing, observability, and secure‑by‑design engineering practices.
• Ensure solutions meet scalability, reliability, accessibility, and compliance requirements.
• Front End & React Technology Leadership
• Provide expert‑level guidance during design discussions, code reviews, and developer syncs to ensure React choices align with product vision and long‑term architecture.
• Advise on component design, shared libraries, performance tuning, and UI patterns that support long‑term scalability.
• Drive adoption of modern React techniques; mentor developers to elevate React proficiency and engineering craft.
• Collaborate with Product/UX to deliver user‑centric and accessible designs.
• Project & Delivery Leadership
• Lead complex engineering initiatives from discovery through production release, ensuring predictable, high‑quality delivery.
• Develop and maintain technical plans, delivery roadmaps, and mitigation strategies for technical risks/dependencies.

What You Need

• 10+ years of software engineering experience.
• 2+ years of full stack development experience on JVM / Spring Boot platforms.
• Demonstrated experience leading delivery with distributed teams across regions/time zones (example: 3 developers, 1 QA, 1 BA in staggered working hours model).
• Required Technical Skills
• JavaScript, Type Script
• React

JS with testing (Jest / Vitest)

• Angular

JS with testing (Karma / Jasmine) (legacy exposure acceptable)

• CSS / HTML with best practices for accessibility and security
• Build/CI tooling:

Jenkins, Gradle

• Backend:

Spring Boot

• Database:

MongoDB

• UI frameworks:

Bootstrap, Material UI

• Strong understanding of secure coding practices to prevent vulnerabilities across UI and API layers.
• Required Behavioral / Professional Skills
• Strong technical leadership with ability to set architectural direction and influence engineering standards.
• Ability to learn new tools/technologies quickly and apply them effectively.
• Strong problem‑solving skills able to tackle complex challenges using experience, creativity, and multiple sources of information.
• Excellent communication skills, with the ability to convey complex concepts clearly and concisely.
• Nice to Have (Preferred)
• Experience building or maintaining a React design system / component library.
• Experience with observability tooling (monitoring/logging/tracing) and performance optimization.
• Experience working closely with security teams or implementing application security controls.

Compensation and Benefits

Role

Location:

Ontario

Compensation Range: $115,000 - $144,000

Full‑time, regular employees accrue a minimum of 10 days of paid vacation per year, receive 6 days of paid sick leave each year (pro‑rated for new hires throughout the year), paid holidays, and are eligible for paid bereavement leave and jury duty. They and their dependents residing in Canada are eligible for supplemental healthcare coverage, as well as company‑paid Employee Only basic life insurance and accidental death and dismemberment coverage.

Equal

Employment Opportunity

At UST, we strive to provide a work environment free of discrimination and harassment. We are an equal opportunity employer and employment decisions are based on merit and business needs. Our Human Rights Policy further illustrates our stand on this. We are committed to following fair employment practices that provide equal opportunities to all employees. We do not discriminate or allow harassment on the basis of race, color, religion, disability, gender, national origin, sexual orientation, gender identity, gender expression, age, genetic information, military status, or any other legally protected status.

At UST, we value diversity and believe that a diverse workplace builds a competitive advantage.

Contact & Recruiting

If you require accommodations, please contact Your accessibility is important to us. We use AI technology in our hiring process to verify candidate identity and ensure assessment integrity.

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