Toronto On Full time backend developer rest api sql Jobs – 26 Openings This Week

Senior Software Engineer
Soneil Spark —Brampton, ON
- $105,000–$125,000 a year
- Full-time
- Software troubleshooting
- System design
- SQL
- Dental care
- Paid time off
Quick apply
Full-Stack Developer
Method Integration Inc. —Toronto, ON
- $70,000–$95,000 a year
- Full-time
- Hybrid work
- Computer Science
- Software troubleshooting
- Java
- Dental care
- Vision care
Java Backend Developer
Recutify Inc. —Toronto, ON
- $120,000–$130,000 a year
- Full-time
- SQL
- AWS
Quick apply
Full Stack Developer
KenWave Solutions —Mississauga, ON
- Full-time
- Computer Science
- Software troubleshooting
- Engineering
Quick apply
Full Stack Developer
Kumaran Systems —Toronto, ON
- Full-time
- Azure
- Windows
- SQL
Senior Full Stack Developer
CGI —Toronto, ON
- $95,000–$145,000 a year
- Full-time
- Software troubleshooting
- English
- AWS
Quick apply
Senior Backend Developer
Royal Bank of Canada —Toronto, ON
- Full-time
- Software troubleshooting
- SQL
- Agile
Lead Java Full Stack Developer
Citi —Mississauga, ON
- $120,800–$170,800 a year
- Full-time
- Hybrid work
- Azure
- Computer Science
- Engineering
Senior Fullstack Developer
DATA Communications Management Corp —Richmond Hill, ON
- $90,000–$110,000 a year
- Full-time
- Azure
- Computer Science
- Software troubleshooting
- Dental care
- Vision care
Quick apply
Senior Full Stack Developer (.NET)
Tri-global Solutions Group Inc. —Toronto, ON
- Up to $103 an hour
- Contract
- Hybrid work
- Azure
- Computer Science
- Engineering
5d
Senior Backend Engineer (.NET & AI/ML)
Zonda Home —Toronto, ON
- $110,000–$130,000 a year
- Full-time
- Remote
- Azure
- DevOps
- AWS
- Wellness program
- Designated paid holidays
Quick apply
Senior Backend Engineer
Douglas Online Technologies Canada —Toronto, ON
- $140,000–$185,000 a year
- Full-time
- Software troubleshooting
- SQL
- Team management
Quick apply
8d
AI .Net Developer
CGI —Toronto, ON
- $80,000–$130,000 a year
- Full-time
- Hybrid work
- Azure
- Computer Science
- Engineering
Quick apply
Senior Software Engineering Specialist
CGI —Toronto, ON
- $95,000–$145,000 a year
- Full-time
- Computer science
- Azure
- Software troubleshooting
Quick apply
Senior Software Developer
Autodesk —Toronto, ON
- $107,000–$157,300 a year
- Full-time
- Software troubleshooting
- Engineering
- System design
Sr. AI Java Developer
CGI —Toronto, ON
- $80,000–$130,000 a year
- Full-time
- Hybrid work
- Azure
- Computer Science
- AWS
Quick apply
Backend Engineer — Real-Time Sports Data (Go / ClickHouse / AI-Native)
Betstamp —Toronto, ON
- Full-time
- Hybrid work
- SQL
- C++
- Linux
8h
Technology Lead
Infosys —Mississauga, ON
- Full-time
- Azure
- Software troubleshooting
- Maintenance
Quick apply
GIS Developer
Bridgenext Digital Engineering —Toronto, ON
- $115,000–$150,000 a year
- Full-time
- Computer Science
- Software troubleshooting
- Java
6d
QA Automation Engineer
Luxoft —Toronto, ON
- $100,000–$110,000 a year
- Azure
- Computer Science
- Engineering

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full time backend developer rest api sql jobs near toronto on

Senior Software Engineer

Soneil Spark
Brampton, ON

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Job details

Permanent | Full-time
$105,000–$125,000 a year

Qualifications

Performance tuning
Software engineering
Go
Cloud architecture
Node.js
Continuous Delivery (CD) implementation
Software troubleshooting
Internet of things
RESTful API
Relational databases
Infrastructure as Code (IaC)
Content management systems
System design
NoSQL
Data and database experience
SQL
Cloud engineering experience
AWS
Docker
Decision making
Back-end development
Mentoring
Query optimization
GitHub
APIs
S3
React.js
Root cause analysis
Business requirements
AI
Cross-functional collaboration
Software development or architecture experience
TypeScript
Communication skills
Python
React Native
Software architecture
Debugging
Cross-functional communication
Pipeline

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

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full time backend developer rest api sql jobs in toronto on

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Backend Engineer — Real-Time Sports Data (Go / ClickHouse / AI-Native)

Technology Lead

GIS Developer

QA Automation Engineer

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