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Senior Software Developer

@ Hays

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Toronto, Ontario

$115k–$130k/yrFull-time7+ years experience

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SIGNALS

Overview

Hays is hiring a Senior Software Developer (Full Stack) for a technology client building diagnostic and monitoring solutions. The role modernises core platforms, combining web applications, backend services, cloud technologies and hardware integrations. Full-time.

Pay:

$115,000–$130,000 a year

Responsibilities:

Modernise and re-architect core diagnostic and monitoring platforms
Design and develop scalable web, backend and cloud solutions
Integrate software with hardware platforms
Collaborate with product management, hardware engineering and business stakeholders

Requirements summary:

Bachelor's degree in Computer Science or Software Engineering, or equivalent experience
7+ years of commercial software development experience
Strong Node.js, C# and C++ enterprise development experience
Proficiency with JavaScript/TypeScript, HTML5 and SPA frameworks
Experience designing and consuming RESTful APIs

Tools & skills

Node.js C#C++JavaScript TypeScript HTML5

Source and dates

Employer career site / ATS feed · careerpage

Employer posting date: 2026-09-24
First seen by our source: 2026-10-11
Source record updated: 2026-10-11

These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.

Job details

Seniority	Senior
Department	Software development
Experience	7+ years
Hours per week	40 (estimated)
Work setting	Office
Position	Mostly sitting
Physical demands	physical low · computer high
Languages	English
Education	Bachelor’s degree (required)
Fields of study	Computer Science, Software Engineering

Summary and details written by AI from the posting; the employer’s posting is the authority.

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Hays

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Field	Value
Open jobs on Jobsy	248

Job description

Your new company

Our client is a well-established technology organization focused on developing advanced diagnostic and monitoring solutions. They are investing heavily in modernising their software platforms and engineering capabilities to support the next generation of connected hardware and cloud-enabled solutions. This is an exciting opportunity to join a highly collaborative team where innovation, technical excellence, and continuous improvement are at the core of everything they do.

Your new role

As a Senior Software Developer (Full Stack), you will play a critical role in modernising and re-architecting core diagnostic and monitoring platforms. Working closely with product management, hardware engineering teams, and business stakeholders, you will design and develop scalable software solutions that combine web applications, backend services, cloud technologies, and hardware integrations.

What you'll need to succeed

Bachelor's degree in Computer Science, Software Engineering, or equivalent industry experience.
7+ years of commercial software development experience.
Strong experience developing enterprise applications using Node.js, C#, and C++.
Proficiency with JavaScript/TypeScript, HTML5, and modern SPA frameworks.
Experience designing and consuming RESTful APIs; exposure to gRPC or MQTT is considered an asset.

What you'll get in return

You will have the opportunity to lead the modernisation of critical technology platforms while working alongside experienced software engineers, architects, and product teams. The organisation offers a collaborative environment, exposure to cutting-edge technologies, complex technical challenges, professional growth opportunities, and a competitive compensation package.

What you need to do now

If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.

If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion on your career.

This posting is for an existing vacancy with the organization.

AI may be used to screen, assess or select applicants for the position.

#LI-DNI
#1126853 - Lauren Gillard

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