Markham, On Sr full stack developer Jobs – 152 Openings This Week

Senior Full Stack Developer
telMAX —Markham, ON
- $95,000–$115,000 a year
- Full-time
- Computer Science
- Engineering
- No university degree
- Dental care
- Vision care
Quick apply
13d
RQ10933 - Sr. Software Developer - Full Stack
Source Code —Toronto, ON
- $72.14–$108.22 an hour
- Full-time
- Azure
- Computer Science
- DevOps
Quick apply
4d
RQ09843 - Sr. Software Developer - Full Stack
Source Code —Toronto, ON
- Full-time
- DevOps
- Databases
- APIs
Quick apply
Senior Full-Stack Developer
Priceline.com —Toronto, ON
- $140,000–$160,000 a year
- Full-time
- Hybrid work
- Computer Science
- Java
- Databases
- Disability insurance
- Dental care
2d
RQ09380 - Sr. Software Developer - Full Stack
Source Code —Toronto, ON
- Full-time
- Hybrid work
- Azure
- Oracle
- DevOps
Quick apply
RQ11157 - Sr. Software Developer - Full Stack
Source Code —Toronto, ON
- $72.14–$108.22 an hour
- Full-time
- Azure
- Oracle
- DevOps
Quick apply
12d
Senior Full Stack Developer (Contract Role)
Capco —Toronto, ON
- $118,000–$152,000 a year
- Contract
- Java
- Agile
- Communication skills
Quick apply
12d
RQ09244 - Sr. Software Developer - Full Stack
Source Code —Toronto, ON
- Full-time
- Hybrid work
- Oracle
- Java
- SQL
Quick apply
Senior Software Developer, Full Stack (Centah)
Financeit —Toronto, ON
- $140,000–$150,000 a year
- Full-time
- Hybrid work
- SQL
- AWS
- Bachelor's
- Dental care
- Vision care
Quick apply
RQ00638 - Sr. Software Developer - Full Stack
Source Code —Toronto, ON
- $76.97–$92.36 an hour
- Full-time
- Hybrid work
- Java
- APIs
- In-person
Quick apply
RQ10070 - 3 x Sr. Software Developer - Full Stack
Source Code —Toronto, ON
- Full-time
- Azure
- Oracle
- DevOps
Quick apply
RQ09800 - Sr. Software Developer - Full Stack
Source Code —Toronto, ON
- Full-time
- Hybrid work
- Azure
- Maintenance
- SQL
Quick apply
RQ09714 - Sr. Software Developer - Full Stack
Source Code —Toronto, ON
- Full-time
- Hybrid work
- Azure
- Java
- APIs
Quick apply
Senior Software Developer (Full-stack JavaScript)
Scotiabank —Toronto, ON
- SQL
- JavaScript
- APIs
- Tuition reimbursement
RQ09943 - Sr. Software Developer - Full Stack
Source Code —Toronto, ON
- Full-time
- Azure
- Oracle
- DevOps
Quick apply
Senior Full Stack Developer
Intone Networks —Toronto, ON
- Contract
- Azure
- Databases
- SQL
RQ09528/ RQ09623 - Sr. Software Developer - Full Stack
Source Code —Toronto, ON
- Full-time
- Oracle
- DevOps
- Java
Quick apply
RQ10490 - Sr. Software Developer - Full Stack
Source Code —Toronto, ON
- Full-time
- Azure
- DevOps
- Java
Quick apply
Full Stack Developer (Node/Python + AI stack)
Cognizant —Toronto, ON
- $60,300–$95,500 a year
- Full-time
- Hybrid work
- DevOps
- System design
- AWS
5d
Senior Full-Stack Developer
1Valet —Toronto, ON
- $120,000–$130,000 a year
- Full-time
- Remote
- Azure
- SQL
- APIs
Quick apply

I want to receive the latest job alerts for sr full stack developer in markham, on

By signing in to your account, you agree to SimplyHired's Terms of Service and consent to our Cookie and Privacy Policy.

Explore jobs in more locations

sr full stack developer jobs near markham, on

Senior Full Stack Developer

telMAX -
Markham, ON

Quick apply

Job details

Full-time
$95,000–$115,000 a year
13 days ago

Qualifications

Go
Computer Science
Software Engineering
Engineering
DHCP
Distributed systems
REST
Computer networking
APIs
Linux
GraphQL
Debugging

Full job description

SENIOR FULL STACK DEVELOPER

About telMAX Inc.:

Based in York Region, telMAX is a private equity-backed all fibre digital infrastructure platform that provides a 21st century alternative to traditional telecom networks. Recognized for four consecutive years as Canada’s Fastest ISP with an industry-leading net promoter score of over fifty, telMAX is continuing its rapid growth plan to bring its all-fibre network to residential and business customers across Southern Ontario.

Your Position & How You Will Contribute:

Reporting to the Head of Network & Systems, the Senior Full Stack Developer owns the internal platform that connects our network to everything else. This is not a greenfield project — there is a real codebase, real integrations, and real dependencies that the business runs on every day. Your job is to make it better: cleaner, faster, more reliable, and easier for the team to build on. The platform touches nearly every part of the operation: customer communications, billing automation, NOC workflows, provisioning, field ops tooling, and reporting. You will be the most senior technical voice on a small, capable team, working directly alongside contractors and setting the standard for how the work is done.

Responsibilities & Key Duties:

Platform Ownership: Maintain, extend, and improve the internal Go codebase that integrates our network elements, enterprise systems, and operational workflows.
Integration Architecture: Own the API and database integration layer across a broad and evolving set of systems — including OSS/BSS platforms, network elements, and third-party commercial services.
Technical Standard-Setting: Set the bar for code quality, design patterns, and development practices on the team. Review contractor contributions and provide clear, actionable feedback.
Delivery: Ship features and improvements with the discipline to scope, estimate, and follow through.
Collaboration: Work closely with the Business Systems Analyst, the Visibility & OSS team, and other internal stakeholders to translate operational needs into working software.

What You Bring:

Technically Grounded: Able to wtite clean Go and knows why. Understands how distributed systems fail and builds things that are easier to debug when they do.
Integrations Experience: Has connected real systems to each other — APIs, databases, queues, webhooks. Comfortable designing integrations that hold up when the external system behaves unexpectedly.
Domain Curiosity: Telecom, ISP, or network operations experience is a strong asset. Genunie interest about how IP networks, provisioning systems, and billing automations intersect – and the initative to learn the domain.
Ownership Mentality: Not precious about the codebase inherited. Tales responsibility for making it better, cleaner, better documented, easier to build on without rewriting everything first. Leaves things in better shape than they were found.
Clear Communicator: Able to explain a technical restraint to someone who does not write code and a busiess requirement to someone who does. Keeps stakeholders informed without over-communicating.

Experience:

Strong Go development experience in a production environment. Comfort across the stack — API design, database integration, job scheduling, lightweight front-end where required.
Experience integrating with external APIs at scale: REST, GraphQL, webhooks, or similar.
Familiarity with Linux environments, containerization, and deployment basics.
Exposure to telecom or ISP systems is a significant asset: OSS/BSS platforms, provisioning systems (Kea DHCP, PON EMS), network element APIs, or billing automation.
Experience in a small team where you wore multiple hats and shipped without a lot of process overhead.
Contractor or vendor code review experience is an asset.

Education:

Degree or diploma in Computer Science, Software Engineering, or equivalent practical experience. Credentials are an asset, not a requirement.

ImPACT Values

Performance & Commitment

We hold ourselves to the highest standards, delivering exceptional results through dedication, accountability, and continuous improvement. Our commitment to excellence drives us to push boundaries, take ownership, and always follow through.

Agility & Collaboration

We move fast, adapt with courage, and work together to solve challenges. Through empowerment and open communication, we foster a culture where bold ideas thrive. We leverage our collective strengths, achieve shared success and deliver exceptional results for our customers and teams.

Customer Centricity

In every decision we make, we think through the customer’s lens. We know that anticipating and exceeding their expectations isn’t just good service—it’s the foundation of who we are. By staying deeply connected to our customers’ needs, we build loyalty, enhance our reputation, spark positive word-of-mouth and drive company growth.

Trust & Integrity

We build trust by acting with integrity, respect, and transparency in everything we do. We communicate with each other openly and presume positive intentions. By upholding these principles, we strengthen relationships, create a culture of respect, and empower teams to succeed together.

Why You Should Join telMAX:

We are a growing, dynamic organization
We offer a competitive variable compensation package
Hybrid positions
Benefits (Medical, Dental, and Vision)
Health Spending Account (HSA)
RRSP matching program

Equity Statement

telMAX Inc. is an equal opportunity employer committed to fostering an inclusive and accessible workplace, welcoming applications from all individuals. In accordance with the Accessibility for Ontarians with Disabilities Act (AODA), accommodations are available on request for candidates during the selection process as well as throughout employment.

Quick apply

Refine Your Search

sr full stack developer jobs in markham, on

Senior Full Stack Developer

RQ10933 - Sr. Software Developer - Full Stack

RQ09843 - Sr. Software Developer - Full Stack

Senior Full-Stack Developer

RQ09380 - Sr. Software Developer - Full Stack

RQ11157 - Sr. Software Developer - Full Stack

Senior Full Stack Developer (Contract Role)

RQ09244 - Sr. Software Developer - Full Stack

Senior Software Developer, Full Stack (Centah)

RQ00638 - Sr. Software Developer - Full Stack

RQ10070 - 3 x Sr. Software Developer - Full Stack

RQ09800 - Sr. Software Developer - Full Stack

RQ09714 - Sr. Software Developer - Full Stack

Senior Software Developer (Full-stack JavaScript)

RQ09943 - Sr. Software Developer - Full Stack

Senior Full Stack Developer

RQ09528/ RQ09623 - Sr. Software Developer - Full Stack

RQ10490 - Sr. Software Developer - Full Stack

Full Stack Developer (Node/Python + AI stack)

Senior Full-Stack Developer

I want to receive the latest job alerts for sr full stack developer in markham, on

Related Searches

Explore jobs in more locations

Job seeker tools

Employer Tools

Browse

Stay Connected