This is a 3 month fixed term salaried contract, located in Ontario Canada. Preferably in Toronto ... This role spans backend systems engineering, database query development, and frontend contribution ...
This is a 3 month fixed term salaried contract, located in Ontario Canada. Preferably in Toronto ... This role spans backend systems engineering, database query development, and frontend contribution ...
RQ00687 - Sr. Software Developer
Toronto, ON · Hybrid
CA$87.38 - CA$104.86/hr
RQ00687 - Sr. Software Developer 9+ month contract (188 business days) - possible extension ONSITE ... years working with backend data and BMC ITSM v9+ features. * 8+ years of experience mapping ...
Quick apply
RQ00687 - Sr. Software Developer
Toronto, ON · Hybrid
CA$87.38 - CA$104.86/hr
RQ00687 - Sr. Software Developer 9+ month contract (188 business days) - possible extension ONSITE ... years working with backend data and BMC ITSM v9+ features. * 8+ years of experience mapping ...
Full-Stack Engineer (Contract - Part-Time)
Toronto, ON · On-site +1
$100K - $150K/yr
AWS SDK), and API backend (BFF) * Develop, improve, and fix custom API backend as required * SPA ... Full Stack Development: 2 years (Required) * DevOps: 1 years (Preferred) Employment Type:
Full-Stack Engineer (Contract - Part-Time)
Toronto, ON · On-site +1
$100K - $150K/yr
AWS SDK), and API backend (BFF) * Develop, improve, and fix custom API backend as required * SPA ... Full Stack Development: 2 years (Required) * DevOps: 1 years (Preferred) Employment Type:
Net Software Developer (with particular focus on back end development) to join their collaborative ... contract after that. \n \n \n
Net Software Developer (with particular focus on back end development) to join their collaborative ... contract after that. \n \n \n
React Native Developer (Remote, Open Roster Contractor Opportunity) Please note: this is an open ... Understanding of backend frameworks like Express, Node.js, NestJS, or Laravel etc. * Experience ...
React Native Developer (Remote, Open Roster Contractor Opportunity) Please note: this is an open ... Understanding of backend frameworks like Express, Node.js, NestJS, or Laravel etc. * Experience ...
RQ00685 - Sr. Software Developer - Full Stack 6-month contract (126 business days) - possible ... Cloud-Native & Serverless Backend Expertise: Proven experience designing and building highly ...
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RQ00685 - Sr. Software Developer - Full Stack 6-month contract (126 business days) - possible ... Cloud-Native & Serverless Backend Expertise: Proven experience designing and building highly ...
Technology Developer
Mississauga, ON · On-site
Description We are seeking a hands-on senior software engineer who can solve complex backend and ... Write and maintain automated unit, integration, contract, API and end-to-end tests while promoting ...
Technology Developer
Mississauga, ON · On-site
Description We are seeking a hands-on senior software engineer who can solve complex backend and ... Write and maintain automated unit, integration, contract, API and end-to-end tests while promoting ...
... website backend (Windows/Linux, Apache, PHP, Docker) * Preparing e-commerce website data (MySQL ... company contract, pricing with vendors and customers * Provide software support to various ...
... website backend (Windows/Linux, Apache, PHP, Docker) * Preparing e-commerce website data (MySQL ... company contract, pricing with vendors and customers * Provide software support to various ...
Software Developer
London, ON · On-site
... website backend (Windows/Linux, Apache, PHP, Docker) * Preparing e-commerce website data (MySQL ... company contract, pricing with vendors and customers * Provide software support to various ...
Quick apply
Software Developer
London, ON · On-site
... website backend (Windows/Linux, Apache, PHP, Docker) * Preparing e-commerce website data (MySQL ... company contract, pricing with vendors and customers * Provide software support to various ...
Full-Stack Developer
Toronto, ON · On-site
Design and maintain reliable APIs and backend services that connect ODAIA's data, machine learning ... contracts. * Strong software engineering fundamentals, including modular design, clear interfaces ...
Quick apply
Full-Stack Developer
Toronto, ON · On-site
Design and maintain reliable APIs and backend services that connect ODAIA's data, machine learning ... contracts. * Strong software engineering fundamentals, including modular design, clear interfaces ...
Software Developer
Medical
Dental
Retirement
Mid-morning you might drop into a backend slice: a Go service endpoint or a Python data pipeline ... API contract decision. Afternoons often involve a code review - either giving feedback to a ...
Software Developer
Medical
Dental
Retirement
Mid-morning you might drop into a backend slice: a Go service endpoint or a Python data pipeline ... API contract decision. Afternoons often involve a code review - either giving feedback to a ...
Software Engineer - Remote
Toronto, ON · Remote
Contract Location: Remote Job Summary: We are looking for experienced software engineers to help ... Work on challenging software engineering tasks across backend, full-stack, infrastructure, and ...
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Software Engineer - Remote
Toronto, ON · Remote
Contract Location: Remote Job Summary: We are looking for experienced software engineers to help ... Work on challenging software engineering tasks across backend, full-stack, infrastructure, and ...
Python Developer - Fully Remote | Upto $50/hr
Toronto, ON · Remote
CA$50/hr
Software Engineer Expert Type: Contract Compensation: $40-$50/hour Location: Remote Role ... Experience with APIs , backend systems, and debugging. * Familiarity with Docker , Linux , and ...
Quick apply
Python Developer - Fully Remote | Upto $50/hr
Toronto, ON · Remote
CA$50/hr
Software Engineer Expert Type: Contract Compensation: $40-$50/hour Location: Remote Role ... Experience with APIs , backend systems, and debugging. * Familiarity with Docker , Linux , and ...
Senior API and Integration Engineer
Medical
Dental
Retirement
Reporting to the Sr. Director, Pension Application Developer, the Senior API and Integration ... Guide API versioning, contract stability, schema evolution, backward compatibility, and deprecation ...
Senior API and Integration Engineer
Medical
Dental
Retirement
Reporting to the Sr. Director, Pension Application Developer, the Senior API and Integration ... Guide API versioning, contract stability, schema evolution, backward compatibility, and deprecation ...
Principal Software Engineer
Toronto, ON · Hybrid
Medical
Dental
Vision
Life
Retirement
PTO
This role is backend-leaning - you'll spend most of your time on server-side architecture, data ... Take ownership in developer experience by improving/automating CI/CD and other day to day ...
Principal Software Engineer
Toronto, ON · Hybrid
Medical
Dental
Vision
Life
Retirement
PTO
This role is backend-leaning - you'll spend most of your time on server-side architecture, data ... Take ownership in developer experience by improving/automating CI/CD and other day to day ...
RQ11288 - Sr. Software Developer
Toronto, ON · On-site
RQ11288 - Sr. Software Developer 1-year contract (250 business days) - possible extenion ONSITE 5 ... Build and enhance data-driven applications and backend services * Design and execute unit ...
Quick apply
RQ11288 - Sr. Software Developer
Toronto, ON · On-site
RQ11288 - Sr. Software Developer 1-year contract (250 business days) - possible extenion ONSITE 5 ... Build and enhance data-driven applications and backend services * Design and execute unit ...
Staff Software Engineer
Toronto, ON · Hybrid
Medical
Dental
Vision
Life
Retirement
PTO
This role is backend-leaning - you'll spend most of your time on server-side architecture, data ... Take ownership in developer experience by improving/automating CI/CD and other day to day ...
Staff Software Engineer
Toronto, ON · Hybrid
Medical
Dental
Vision
Life
Retirement
PTO
This role is backend-leaning - you'll spend most of your time on server-side architecture, data ... Take ownership in developer experience by improving/automating CI/CD and other day to day ...
Senior Software Engineer, Full Stack
Toronto, ON · Hybrid
Medical
Dental
Vision
Life
Retirement
PTO
This role is backend-leaning - you'll spend most of your time on server-side architecture, data ... Take ownership in developer experience by improving/automating CI/CD and other day to day ...
Senior Software Engineer, Full Stack
Toronto, ON · Hybrid
Medical
Dental
Vision
Life
Retirement
PTO
This role is backend-leaning - you'll spend most of your time on server-side architecture, data ... Take ownership in developer experience by improving/automating CI/CD and other day to day ...
Be Seen First
Senior Java Engineer (React)
Toronto, ON · On-site
CA$70 - CA$120/hr
Medical
Dental
Vision
Life
Retirement
PTO
Senior Java Engineer Type: 6-month contract + opportunity to extend Location: 1 Queen Street East ... Design, develop, and maintain backend services using Java and Spring Boot. * Contribute to ...
Quick apply
Be Seen First
Senior Java Engineer (React)
Toronto, ON · On-site
CA$70 - CA$120/hr
Medical
Dental
Vision
Life
Retirement
PTO
Senior Java Engineer Type: 6-month contract + opportunity to extend Location: 1 Queen Street East ... Design, develop, and maintain backend services using Java and Spring Boot. * Contribute to ...
RQ11209 - Sr. Software Developer - Full Stack
Toronto, ON · Remote
CA$88.52 - CA$106.30/hr
RQ11209 - Sr. Software Developer - Full Stack 9-month contract (170 business days) - possible ... Backend Integration: Utilizing Oracle REST Data Services (ORDS) to create RESTful APIs for ...
Quick apply
RQ11209 - Sr. Software Developer - Full Stack
Toronto, ON · Remote
CA$88.52 - CA$106.30/hr
RQ11209 - Sr. Software Developer - Full Stack 9-month contract (170 business days) - possible ... Backend Integration: Utilizing Oracle REST Data Services (ORDS) to create RESTful APIs for ...
Contract Back End Developer information
What is a contract back end developer?
What are the key skills and qualifications needed to thrive as a contract back end developer?
What are some common challenges faced by contract back end developers when integrating with existing systems?
What is the difference between Contract Back End Developer vs Contract Front End Developer?
| Aspect | Contract Back End Developer | Contract Front End Developer |
|---|---|---|
| Required Skills | Server-side languages (e.g., Java, Python), databases, API development | HTML, CSS, JavaScript, UI frameworks |
| Work Environment | Backend systems, server management, database integration | Client-side interfaces, user experience design |
| Common Certifications | None specific, but backend certifications (e.g., AWS, Oracle) are common | None specific, but front end certifications (e.g., React, Angular) are common |
Contract Back End Developers focus on server-side logic, databases, and API development, while Contract Front End Developers work on user interfaces and client-side functionality. Both roles require technical skills but differ in their focus areas within software development.
How much do contract back end developers get paid?
Is a contract back end developer in demand?
What are the most commonly searched types of Back End Developer jobs in Ontario?
The most popular types of Back End Developer jobs in Ontario are:
What are popular job titles related to Contract Back End Developer jobs in Ontario?
For Contract Back End Developer jobs in Ontario, the most frequently searched job titles are:
What job categories do people searching Contract Back End Developer jobs in Ontario look for?
The top searched job categories for Contract Back End Developer jobs in Ontario are:
What cities in Ontario are hiring for Contract Back End Developer jobs?
Cities in Ontario with the most Contract Back End Developer job openings:

CA$75/hr
Full-time
Re-posted 17 days ago
Job description
WHY DEPT?
We are pioneers at heart. What this means, is that we are always leaning forward, thinking of what we can create tomorrow that does not exist today. We were born digital and we are a new model of agency, with a deep skillset in tech and marketing. That's why we hire curious, self-driven, talented people who never stop innovating.
Our culture is big enough to cope and small enough to care. Meaning, that with people across 20+ countries, we're big enough to provide you with the best tools, global opportunities, and benefits that help you thrive. While acting small by investing in you, your growth, your team, and giving you the autonomy to solve our clients' problems, no matter where you are in the world.Â
This is a 3 month fixed term salaried contract, located in Ontario Canada. Preferably in Toronto.
The Role:
We are seeking a Full Stack Rust Engineer to join the team as a hands-on contributor building and maintaining production Rust applications. This role spans backend systems engineering, database query development, and frontend contribution - with the center of gravity firmly on backend Rust development in a distributed, containerized environment. This is a build-and-ship role. The successful candidate writes production Rust, debugs production Rust, and owns the quality and performance of the systems they deliver.
What You'll Do:
- Design, develop, and maintain production Rust applications, including backend services, APIs, and system-level components
- Write and optimize complex SQL queries for performance and correctness at scale
- Debug and troubleshoot Rust applications in production environments, including memory safety issues, concurrency bugs, and performance regressions
- Contribute to frontend development using React where needed, including integration with micro frontend architectures
- Participate in the design and implementation of microservice and distributed system architectures
- Write and maintain comprehensive test suites: unit tests, integration tests, and end-toend tests following established best practices
- Deploy, monitor, and maintain services in containerized Kubernetes environments
- Implement and maintain observability (logging, metrics, tracing) and alerting for missioncritical distributed systems
- Communicate technical decisions and trade-offs clearly to team members at all levels
- Mentor junior engineers on Rust best practices, systems design, and production engineering discipline
- Leverage agentic coding assistive tools (e.g., Cursor, Claude CLI) responsibly to accelerate development while maintaining code quality and security standards
What You Bring:
- 5+ years of experience creating and managing Rust applications in production environments
- Strong command of Rust's ownership model, lifetime system, trait system, and error handling patterns
- Experience with the async Rust ecosystem (Tokio, async-std, or equivalent runtimes)
- Proficiency with common Rust web frameworks and libraries (Actix, Axum, Warp, or equivalent)
- Demonstrated ability to debug Rust applications in production: diagnosing panics, memory issues, deadlocks, and performance bottlenecks
- Strong systems/backend engineering experience in a production setting - this is not a prototyping or research role
- Experience designing and building APIs, background workers, data pipelines, or other backend services that run reliably at scale
- SQL and Data Strong experience creating scalable and efficient SQL queries, including complex joins, window functions, indexing strategy, and query plan analysis
- Experience working with relational databases (PostgreSQL, MySQL, or equivalent) in production
- Familiarity with testing best practices in Rust and broader software engineering
- Experience writing and maintaining unit tests, integration tests, and ideally propertybased or fuzz tests
- Understanding of CI/CD pipelines and how testing fits into a production deployment workflow
- Knowledge of Kubernetes and containerized environments: deploying, scaling, and troubleshooting services running in containers
- Experience with observability and alerting in mission-critical distributed systems: structured logging, distributed tracing (OpenTelemetry, Jaeger, or equivalent), metrics (Prometheus, Grafana, or equivalent), and alerting configuration
- Ability to communicate effectively with team members at all levels - engineers, product managers, and leadership
- Willingness and ability to mentor junior engineers: code review, pair programming, and knowledge sharing on Rust and systems engineering topics
The anticipated hourly range for this position is $75 hourly. Rate is based on a range of factors that include relevant experience, expertise, and organizational impact. This is based on a 40-hour workweek and leveling. Keep in mind, we're flexible.Â
WE SUPPORT YOU BEING YOU:Â
DEPT is an equal opportunity employer (EOE). We believe our work is its best when our people feel safe and free to be themselves. We're committed to an inclusive and barrier-free recruitment and selection process and workplace, regardless of anyone's lived experience, race, color, religion, sex, national origin, age, disability, and genetic information. So tell us about any accommodations you need. It's totally confidential and only used to make sure you feel fully supported at every step.
DEPT participates in E-Verify, meaning your Form I-9 information will be sent to the federal government to confirm you are authorized to work in the U.S.Â
We are a B Corp-certified company passionate about purpose-driven work. Â Our hope is that you can feel good about the contributions DEPT is making to the world and we always have an open door for your ideas in making the world a better place.Â
DEPT is a pioneering technology and marketing services company that creates integrated end-to-end digital experiences for brands such as Google, KFC, Philips, Audi, Twitch, Patagonia, eBay and more. Its team of 2,500+ digital specialists across 30+ locations on 5 continents delivers pioneering work on a global scale with a boutique culture.Â
Learn more about DEPT
DIVERSITY, EQUITY, & INCLUSION
At DEPT, we take pride in creating an inclusive workplace where everyone has an equal opportunity to thrive. We actively seek to recruit, develop, nurture, and retain talented individuals from diverse backgrounds, with varying skills and perspectives.
Not sure you meet all qualifications? Apply, and let us decide! Research shows that women and members of underrepresented groups tend not to apply for jobs when they think they may not meet every requirement, when in fact they do. We believe in giving everyone a fair chance to shine.Â
We also encourage you to reach out to us and discuss any reasonable adjustments we can make to support you throughout the recruitment process and your time with us.
Want to know more about our dedication to diversity, equity, and inclusion? Check out our efforts here.
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