KEV builds mission-critical financial software for K–12 schools at scale. Our platform provides real-time control and visibility into every dollar collected, replacing fragmented workflows with secure, up-to-date systems. Trusted by 27,000 K–12 schools and districts managing over $8B annually, KEV operates at the intersection of payments, accounting, and reporting.

We are headquartered in Toronto with teams across North America and are investing in cloud-native, data-driven technology. If you want to build high-impact SaaS products that solve hard problems, scale with purpose, and make your work matter in public education, KEV is the place to do it. At KEV, our engineering teams build and operate mission-critical SaaS platforms that support more than 27,000 K12 schools and over 1 million users across North America.

We are hiring a Senior Developer to help design, evolve, and scale the core systems that power KEV's financial platform. You will work across frontend and backend services to deliver secure, high-performance software that supports complex financial workflows. You will contribute to architectural decisions, system design, and platform evolution as KEV continues to grow.

This role requires deep experience building and operating SaaS software at scale. You will design systems that remain reliable under real-world load, handle sensitive financial data with care, and support distributed architectures as usage grows. You will collaborate closely with Product, Design, and Engineering peers to translate real school needs into scalable, durable solutions that earn long-term trust.

Lead system design and architectural decisions, including event-driven patterns where appropriate, to ensure reliable, high-performance systems across complex, high-volume workloads. Drive the design and development of user-facing experiences using modern frontend frameworks such as React, while shaping backend services and APIs built with C# and ASP.NET. Ensure frontend and backend systems are aligned, performant, and built for long-term maintainability.





Build and maintain software that processes financial transactions with a strong focus on correctness, traceability, and security. Ensure financial workflows are resilient, failures are handled predictably, and customer trust is protected. Data and Performance at Scale Design and optimize relational data models and SQL queries that support high-volume production workloads.

Balance performance, data integrity, and maintainability as systems evolve.

Quality Engineering

Write clean, maintainable, and well-tested code, applying shift-left practices such as unit and integration testing to catch issues early. Contribute to improving engineering standards, development workflows, and technical decision-making across the team. Communicate clearly about technical constraints, risks, and progress to support predictable delivery. 8+ years of professional experience building and operating production SaaS software, with significant experience in full stack or backend-heavy roles.

Deep expertise in C# and ASP.NET, with a strong track record designing and evolving API-driven systems in distributed environments. Strong grounding in object-oriented design, design patterns, and SOLID principles, with the ability to apply them pragmatically in large, evolving codebases. Strong frontend experience building modern web applications using React, JavaScript, HTML, and CSS, with a focus on performance and usability.

Experience building or operating financial systems, payments platforms, or transaction-heavy applications where correctness, security, and traceability are critical. Strong working knowledge of SQL and relational databases,



including schema design, query optimization, and data integrity in high-volume production systems. A disciplined approach to engineering quality, with experience applying shift-left testing practices, code review standards, and operational rigor to improve reliability.

A clear, pragmatic communicator who can explain complex technical decisions and influence direction across teams. Meaningful health and dental benefits Retirement savings support, including RRSP matching in Canada and 401(k) contributions in the U.Hybrid and flexible work environment Flexible PTO with close to 4 weeks of vacation and a company-wide holiday closure Note: We set standard base pay ranges for all roles based on function, level, and country location, benchmarked against similar stage growth companies. Final offer amounts are determined by multiple factors, including skills, depth of work experience and relevant licenses/credentials, and may vary from the amounts listed above.

Make a real difference every day – Your work supports children, parents, and schools across North America. We create solutions that simplify lives and strengthen communities, rooted in impact. The KEV Way – A culture of questioning, improving, and innovating to help our schools and students.

Celebrate

Community and Culture – Club KEV, Voice of Customer Series, Monthly Townhalls, and KEVite Awards. KEV Group is pleased to accommodate individual needs in accordance with the Accessibility of Ontarians with Disabilities Act, 2005 (AODA), within our recruitment process. KEV Group is an equal opportunity employer who agrees not to discriminate against any employee or job applicant because of race, color, religion, national origin, sex, physical or mental disability, or age.

KEV may use AI-enabled tools to support components of our recruitment process. These tools are used to support human decision making. Visit our website for more information and details about working at KEV. #

📌 Senior Fullstack Engineer (Frontend) (Toronto)
🏢 KEV Group
📍 Toronto