Senior Developer - ESC

ESC Corporate Services Ltd.; Toronto; Hybrid; CAD 79,000 - 118,000; Full time

Benefits offered by this job

Great Place to Work

Hybrid work schedule

Career development opportunities

Job summary

ESC Corporate Services Ltd. in Toronto, ON, seeks a Senior Developer to modernize core apps with accessibility at the forefront. You will guide technical direction, lead C#/.NET development, and ensure WCAG 2.1/2.2 AA compliance across front-end and back-end components.

The role requires 5+ years of experience, strong API and data tooling skills, and a commitment to accessible, scalable software delivered in a hybrid work environment.

Qualifications

• 5+ years of software development experience.
• Deep knowledge of WCAG principles and ARIA.
• Strong C#/.NET/ASPX expertise with API work.
• Experience with NuGet, NHibernate, EF, Azure DevOps, SQL, testing.
• Ability to guide accessibility across design, code, and testing.

Responsibilities

• Lead design, development, and maintenance of enterprise apps in C#/.NET.
• Drive accessibility-first development meeting WCAG 2.1/2.2 AA.
• Modernize front-end components for responsive, accessible UIs.
• Perform accessibility testing and remediate issues.
• Embed accessibility in design, code reviews, and testing lifecycle.
• Collaborate with Product/QA/DevOps and mentor peers.

Skills

C#/.NET

ASPX

API development

WCAG accessibility

AI-assisted development

Education

Degree in Computer Science or related field

Tools

NuGet libraries

NHibernate ORM

Entity Framework

Azure DevOps

SQL scripting

Unit testing frameworks

Job description

Company Name: ESC Corporate Services Ltd. Location: Toronto, Ontario Status: Full-time Permanent Vacancy Salary Range: The annual salary for this position ranges from $78,500 - $117,500. Exact compensation may vary based on qualification, experience, and education. Closing Date: September 9, 2026

We are ESC, an experienced provider that delivers solutions uniting public records data, customer authentication, corporate services, collateral management, asset recovery, and accounts receivable management which support registration, due diligence, and lending practices of clients across Canada. Our people are what drives our innovation, growth, and well-being. We are seeking a Senior Developer to play a key role in modernizing our core applications with a strong focus on accessibility and compliance with Web Content Accessibility Guidelines (WCAG 2.1/2.2 AA). In this role, you will contribute to a large-scale, multi-year initiative to redesign and enhance our front-end applications to ensure they are fully accessible, scalable across devices, and compliant with contractual requirements. As a senior member of the team, you will bring deep expertise in .NET development, apply accessibility best practices, and help guide both technical direction and team capability in this critical area.

What you’ll do:

• Lead the design, development, and maintenance of enterprise applications using C#/.NET.
• Drive accessibility-first development, ensuring all solutions meet WCAG 2.1/2.2 AA standards.
• Develop and modernize front-end components to support responsive, scalable, and accessible user experiences across devices.
• Conduct accessibility testing (automated and manual, including screen readers) and remediate identified issues.
• Embed accessibility standards into the full development lifecycle, including design, code reviews, and testing.
• Collaborate with cross-functional teams (Product, BA, QA, DevOps) to deliver compliant, high-quality releases.
• Mentor junior and intermediate developers, providing guidance on technical development and accessibility best practices.

What you’ll bring:

• Degree in Computer Science or related field, or equivalent technical experience At least 5 years of software development work experience.
• Deep, working knowledge of WCAG principles (Perceivable, Operable, Understandable, Robust) and WAI-ARIA.
• Excellent communication skills Highly proficient in C#/.NET/ASPX (recent experience required) Familiarity with writing and consuming APIs Experience with Nuget libraries, the nHibernate ORM and Entity Framework Working knowledge of Azure Dev Ops, SQL Scripting for MS SQL and unit testing frameworks for .NET would be an asset
• Demonstrated ability to effectively utilize AI-assisted development tools as part of the software development lifecycle, including design, coding, testing, and debugging, while exercising sound technical judgment and responsible AI practices.

What we offer:

• At ISC, we believe in progress with purpose and are proudly certified as a Great Place to Work.
• We’re committed to creating a supportive, inclusive, and engaging environment where people can thrive.
• Here’s what you can expect when you join our team: We believe in progress with purpose.
• Innovative technology Growth through strategic partnerships Investment in new products
• We support your growth. Career development opportunities Education support We care about people.
• Competitive salary and benefits package Hybrid work schedule Recognition programs Help us put public records at our customers’ fingertips with your customer-centric approach.

A little more about us:

ESC is a wholly owned subsidiary of ISC. ISC is the leading provider of registry and information management services for public data and records. Throughout our history, we've excelled at delivering value to government, industry, and our community. We are the partner of choice for governments and private sector organizations seeking solutions across the information management spectrum. Headquartered in Canada, ISC is a leading provider of registry and information management services for public data and records. Throughout our history we have delivered value to our clients by providing solutions to manage, secure and administer information through our Registry Operations, Services and Technology Solutions segments. ISC is focused on sustaining its core business while pursuing new growth opportunities. As an award-winning employer, ISC is committed to driving innovation and creating opportunities for growth. We are proud to support and invest in our diverse team of passionate people, and foster a culture of well-being.

ISC welcomes applications from people with disabilities.

Accommodations are available on request for candidates taking part in the selection process.