toronto, on stack developer contract Jobs – 124 Openings This Week

Senior Software Engineer
Soneil Spark —Brampton, ON
- $105,000–$125,000 a year
- Full-time
- SQL
- AWS
- APIs
- Dental care
- Paid time off
Quick apply
5d
Senior Full Stack Developer
Procom —Toronto, ON
- Immediate opening
- Azure
- Java
- SQL
Quick apply
2d
MEAN Stack Developer
SysDataTek —Toronto, ON
- Full-time
- Remote
- Azure
- AWS
- JavaScript
- Flexible schedule
Full Stack Developer
Berkshire Hathaway Group, Reinsurance Division —Toronto, ON
- From $95,000 a year
- Contract
- Hybrid work
- DevOps
- SQL
- JavaScript
Quick apply
1d
Front-End Developer | Oakville
SearchVelocity —Oakville, ON
- Computer Science
- Engineering
- Bachelor's
GenAI Full Stack Developer (PL854)
Paralucent —Toronto, ON
- Full-time
- Hybrid work
- Azure
- DevOps
- System design
Quick apply
RQ10933 - Sr. Software Developer - Full Stack
Source Code —Toronto, ON
- $72.14–$108.22 an hour
- Full-time
- Azure
- Computer Science
- DevOps
Quick apply
Software Developer - Integration
Genetec —Toronto, ON
- Full-time
- Remote
- Computer science
- Azure
- Computer Science
- Tuition reimbursement
Quick apply
Full-Stack Senior Developer | Oakville
SearchVelocity —Oakville, ON
- Computer Science
- Engineering
- Bachelor's
Java Full Stack Developer
Atlantis IT group —Toronto, ON
- Contract
- Java
- AWS
- JavaScript
Quick apply
RQ09613 - Int. Software Developer - Full Stack
Source Code —Toronto, ON
- Full-time
- DevOps
- JavaScript
- Software development
Quick apply
RQ00551 - Software Developer - Full Stack
Source Code —Toronto, ON
- Full-time
- Hybrid work
- JavaScript
- HTML
Quick apply
Full Stack Engineer - Research Systems
eBay Inc. —Toronto, ON
- $110,400–$147,400 a year
- Full-time
- Java
- Administrative experience
- JavaScript
- Paid time off
Java Developer
Tata Consultancy Services —Mississauga, ON
- DevOps
- Java
- SQL
RQ11157 - Sr. Software Developer - Full Stack
Source Code —Toronto, ON
- $72.14–$108.22 an hour
- Full-time
- Azure
- Oracle
- DevOps
Quick apply
Full Stack .NET Developer
Atlantis IT group —Toronto, ON
- Contract
- Azure
- Oracle
- Databases
Quick apply
RQ10841 - Sr. Software Developer - Full Stack
Source Code —Toronto, ON
- $72.14–$108.22 an hour
- Full-time
- Oracle
- DevOps
- Java
Quick apply
Intermediate .NET Backend Developer
RX Music —Toronto, ON
- Contract
- SQL
- APIs
Senior Frontend Engineer (Full Stack, Frontend-Lead)
BMO Financial Group —Toronto, ON
- $75,900–$141,900 a year
- Full-time
- JavaScript
- APIs
- Agile
- Tuition reimbursement
- Life insurance
Senior Full Stack Developer
VassuTech —Markham, ON
- $100,000–$140,000 a year
- Full-time
- Hybrid work
- APIs
- Agile
- Communication skills
Quick apply
2d
Database Developer
Deluxe Media —Toronto, ON
- Full-time
- Oracle
- Computer Science
- Engineering
Senior Full-Stack Developer
Method Integration Inc. —Toronto, ON
- $110,000–$140,000 a year
- Full-time
- Hybrid work
- AWS
- QuickBooks
- APIs
- Dental care
- Vision care
RQ10329 React/ Elasticsearch Developer
Source Code —Toronto, ON
- Full-time
- Agile
- Communication skills
Quick apply
Senior Software Developer
Royal Bank of Canada —Toronto, ON
- Full-time
- Azure
- Computer Science
- Engineering
2d
Full-Stack Senior Developer | Team Lead | Oakville
SearchVelocity —Oakville, ON
- Computer Science
- Engineering
- Bachelor's

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Senior Software Engineer

Soneil Spark
Brampton, ON

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Job details

Permanent | Full-time
5 days ago

Benefits

Casual dress
Dental care
Paid time off
Employee assistance program
Vision care
Flexible schedule
On-site parking

Skills

CI/CD
Cloud infrastructure
Go
Node.js
React
Internet of things
NoSQL
SQL
AWS
Docker
REST
GitHub
APIs
S3
TypeScript
Communication skills
Python
React Native

Full job description

Location: Onsite Department: Engineering Reports To: Engineering Manager

About the Role

We're looking for a Senior Software Engineer to join our engineering team and take ownership of the backend systems powering our platform. You'll work closely with our existing frontend team, product, and leadership to design, build, and scale services that are reliable, secure, and ready to grow with the business. This is a senior-level, high-ownership role for someone who can operate independently, make sound architectural calls, and mentor other developers along the way.

While this role leans backend-heavy, you'll be comfortable moving across the stack when needed — our frontend is covered, but we value engineers who understand the full picture.

What You'll Do:

Design, build, and maintain backend services and APIs that power our core platform, with a focus on reliability, performance, and maintainability
Own and evolve our data layer — schema design, query optimization, and data integrity across relational databases
Architect systems for scale: think through concurrency, caching, queuing, and failure modes before they become problems
Collaborate with frontend engineers to define clean API contracts and ensure smooth integration between services and UI
Deploy, monitor, and maintain services in a cloud environment (AWS or equivalent), including CI/CD pipelines and infrastructure-as-code where applicable
Write clear technical documentation — specs, architecture decisions, API docs — that the rest of the team (and future hires) can actually use
Participate in code review, set technical standards, and mentor junior/intermediate developers
Work cross-functionally with product and leadership to translate business requirements into technical roadmaps
Troubleshoot and resolve production issues, with an eye toward root cause rather than quick patches
Contribute to technical decision-making around tooling, architecture, and process as the team and product scale

What We're Looking For:

7+ years of professional software engineering experience, with a strong track record in backend development
Deep expertise in at least one modern backend language (Go, Node.js/TypeScript, Python, or similar) — Go experience is a strong plus
Solid experience designing and consuming RESTful APIs understanding of API security and versioning best practices
Well versed in using AI platforms to code (i.e. Claude Code, Codex, Cursor)
Strong database fundamentals — schema design, indexing, query performance, both SQL and NoSQL exposure
Hands-on experience with cloud infrastructure (AWS preferred) — EC2, Lambda, RDS, S3, or equivalent services
Comfortable working with containerization and CI/CD pipelines (Docker, GitHub Actions, CircleCI or similar)
Experience designing systems for scale and reliability — caching strategies, async processing, rate limiting, observability/monitoring
Working knowledge of frontend frameworks (React/Next.js or React Native) — you don't need to live here, but you should be able to read the room
Proven ability to work independently, own a problem end-to-end, and make pragmatic architectural decisions with limited oversight
Strong written communication skills — comfortable producing specs, documentation, and roadmap material
Experience mentoring other engineers or acting as a technical lead on a small team

Nice to Have:

Experience with IoT, device communication protocols, or hardware-integrated systems
Familiarity with EV charging infrastructure or protocols such as OCPP/OCPI
Experience working in an early-stage or startup environment where you're wearing multiple hats
Exposure to building internal tooling, admin dashboards, or CMS-style platforms

Pay: $105,000.00-$125,000.00 per year

Benefits:

Casual dress
Dental care
Employee assistance program
Flexible schedule
On-site parking
Paid time off
Vision care

Work Location: In person

Quick apply

Refine Your Search

stack developer contract jobs in toronto, on

Senior Software Engineer

Senior Full Stack Developer

MEAN Stack Developer

Full Stack Developer

Front-End Developer | Oakville

GenAI Full Stack Developer (PL854)

RQ10933 - Sr. Software Developer - Full Stack

Software Developer - Integration

Full-Stack Senior Developer | Oakville

Java Full Stack Developer

RQ09613 - Int. Software Developer - Full Stack

RQ00551 - Software Developer - Full Stack

Full Stack Engineer - Research Systems

Java Developer

RQ11157 - Sr. Software Developer - Full Stack

Full Stack .NET Developer

RQ10841 - Sr. Software Developer - Full Stack

Intermediate .NET Backend Developer

Senior Frontend Engineer (Full Stack, Frontend-Lead)

Senior Full Stack Developer

Database Developer

Senior Full-Stack Developer

RQ10329 React/ Elasticsearch Developer

Senior Software Developer

Full-Stack Senior Developer | Team Lead | Oakville

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