back-end developer jobs in Toronto

Design, build, and maintain backend financial and payments systems flows (e.g., core banking, ACH, wire, card, and digital asset transaction processing). Influence software architecture and lead design decisions for the Platform, with particular focus on payments and money-movement systems. Develop, test, and launch new features and releases for the...

Hybrid, 3-4 days in office, Downtown Toronto This permanent role is suitable for a engineer with 8 to 15 years of career experience (5-10 as a senior engineer). Experienced with: Microservice architecture and containerization Kafka cloud or local Large mission critical online applications design and infrastructure configuration Relational and non-relational...

We’re building a relationship-oriented bank for the modern world. We need talented, passionate professionals who are dedicated to doing what’s right for our clients.At CIBC, we embrace your strengths and your ambitions, so you are empowered at work. Our team members have what they need to make a meaningful impact and are truly valued for who they are and...

Become a key part of our team as a Back End Developer in a hybrid work environment situated in Downtown Toronto. Your microservice skills and database experience will drive key application projects. This permanent position is perfect for an engineer with 8 to 15 years of experience, particularly those with 5 to 10 years in senior engineering roles. You'll...

We are looking for a Backend Engineer on 1 yr contract for one of our healthcare clients in Toronto.This is a hands on role ideal for an engineer who enjoys learning modern backend patterns and growing their technical depth in a regulated, mission driven environment.Required Skills:Strong experience designing, building, and operating backend services and...

Job SummaryInfosys is seeking a Back End Developer. This position will interface with key stakeholders and apply technical proficiency across different stages of the Software Development Life Cycle including Requirements Elicitation, Application Architecture definition and Design; play an important role in creating the high level design artifacts; deliver...

We’re building a relationship-oriented bank for the modern world. We need talented, passionate professionals who are dedicated to doing what’s right for our clients. At CIBC, we embrace your strengths and your ambitions, so you are empowered at work. Our team members have what they need to make a meaningful impact and are truly valued for who they are...

We are looking for a Senior Back-End Software Developer, skilled in cloud application architecture and API creation. Your role will focus on ensuring the performance and reliability of enterprise applications. As a key team member, you'll bring 8+ years of experience to design and maintain cloud-based systems. You will manage data flow, translate technical...

About the job RQ07898:Senior Back End Developer Responsibilities: Responsible for managing the interchange of data between the server and the users. Required to translate technical systems specifications into working, tested applications. This includes: developing detailed programming specifications, writing and/or generating code, compiling data-driven...

Elevate your career as a Senior Back End Software Developer with the Labour and Transportation Cluster in Toronto, ON. This onsite role focuses on advanced programming skills, specifically in PL/I and DB2. This position demands extensive experience in software development and analysis, with a strong focus on database requirements and coding standards. You...

We’re building a relationship-oriented bank for the modern world. We need talented, passionate professionals who are dedicated to doing what’s right for our clients.At CIBC, we embrace your strengths and your ambitions, so you are empowered at work. Our team members have what they need to make a meaningful impact and are truly valued for who they are and...

We’re building a relationship-oriented bank for the modern world. We need talented, passionate professionals who are dedicated to doing what’s right for our clients. At CIBC, we embrace your strengths and your ambitions, so you are empowered at work. Our team members have what they need to make a meaningful impact and are truly valued for who they are...

Movable Ink scales content personalization for marketers through data-activated content generation and AI decisioning. The world’s most innovative brands rely on Movable Ink to maximize revenue, simplify workflow and boost marketing agility. Headquartered in New York City with close to 600 employees, Movable Ink serves its global client base with...

Being part of Air Canada is to become part of an iconic Canadian symbol, recently ranked the best Airline in North America. Let your career take flight by joining our diverse and vibrant team at the leading edge of passenger aviation.We’re seeking a creative and detail-oriented Back-end developer to play a critical role in ensuring our systems operate...

Job Title: Senior Software Engineer (Java)Location: Toronto, ON (Downtown)Work Arrangement: Hybrid – 2–3 days onsite per weekDuration: 8+ month contract with a strong possibility of extension or permanent conversionSchedule: Monday–Friday, core business hours (9 AM–5 PM)Key ResponsibilitiesDrive large-scale engineering projects from design through...

Elevate your career as a Senior Back End Developer specializing in C++ and Python within the innovative geoscience sector in Toronto, ON. This hybrid role requires collaborative efforts to create cloud-based modeling workflows. Join a reputable client leading in geoscience advancements while developing scalable Python back-end services and modern...

We’re building a relationship-oriented bank for the modern world. We need talented, passionate professionals who are dedicated to doing what’s right for our clients. At CIBC, we embrace your strengths and your ambitions, so you are empowered at work. Our team members have what they need to make a meaningful impact and are truly valued for who they are...

At EY, we're all in to shape your future with confidence.We'll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to go.Join EY and help to build a better working world.The opportunityEY Electronic Publishing Services Inc. provides tax research and information to EY and also operates as a commercial...

Research and Development Full Time Toronto, ON Hybrid Full-Time Role ABOUT MIMOSA DIAGNOSTICS Build Code That Saves Lives. MIMOSA Diagnostics isn’t just another health-tech startup. We are closing the gap in health equity by putting tools into the hands of clinicians worldwide. Our technology helps patients everywhere, including minority populations in...

About The Role What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products — from data pipelines and model-serving infrastructure to scalable microservices that...