Software developer Jobs in Old toronto, ON

About the opportunity

We’re seeking a Senior Software Engineer who can own medium‑to‑large features end‑to‑end, mentor teammates, and make pragmatic technical decisions. You’ll work across Java, MS SQL Server, and React to deliver scalable, accessible experiences.

What you'll get to do

Own feature development end‑to‑end (Java → MS SQL → React), from design to production.

Translate product goals into technical plans; de‑risk unknowns early and manage scope.

Lead design discussions for your features; define APIs, data models, and module boundaries.

Champion testing strategy (unit / integration / e2e) and observability for your areas.

Tune MS SQL Server performance (index strategies, query plans, stored procedures).

Advance the React codebase using modern patterns and accessibility best practices.

Improve CI / CD pipelines, developer tooling, and build / release hygiene.

Mentor SEs through pairing and code reviews; raise the quality bar.

Contribute to incident response and postmortems; drive prevention for your domain.

Database :

MS SQL Server (performance tuning, indexing, stored procedures, migrations)

Tooling / Practices :

GitHub, CI / CD, automated testing, feature flags, monitoring / logging, containers (plus), AWS (plus)

Skills and experience we value

5+ years of professional software development with strong Java and React experience.

Proficiency with MS SQL Server and measurable performance improvements in past work.

Track record of owning features end‑to‑end and making sound engineering trade‑offs.

Strong system design, debugging across the stack, and CI / CD experience.

Excellent communication and collaborative problem solving.

Experience mentoring junior engineers and elevating team practices.

What would make you really stand out

Deep TypeScript, testing libraries, and WCAG 2.2 AA accessibility practices.

Containers / orchestration (Docker / Kubernetes) and cloud platforms (AWS).

Security best practices (OWASP) and / or background in payroll / HCM.

#LI-Hybrid

What’s in it for you

Dayforce is fueled by the diversity of our talented employees. We are an equal opportunity employer and consider and embrace ALL individuals and what makes them unique. We believe our employees should be happy and healthy, with peace of mind and a sense of fulfillment.

We encourage individuals to apply based on their passions.

Dayforce encourages personal and professional growth. We offer excellent time away from work programs, comprehensive wellness initiatives and recognition through competitive pay and benefits.

With a commitment to community impact, including volunteer days and our charity, Dayforce Cares we provide opportunities for you to thrive both in your career and personal life. Our focus is not just on your job but on supporting you to be the best version of yourself.

Fraudulent Recruiting

Beware of fraudulent recruiting. Legitimate Dayforce contacts will use an @dayforce.com email address. We do not request money, checks, equipment orders, or sensitive personal data during the recruitment process. If you have been asked for any of the above, or believe you have been contacted by someone posing as a Dayforce employee, please refer to our fraudulent recruiting statement found here : https : / / www.dayforce.com / be-aware-of-recruiting-fraud

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