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Senior Backend Python Developer at Apexon – Toronto | Jobyssey

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Senior Backend Python Developer

Senior Backend Python Developer

Apexon · Toronto, Canada · 3 weeks ago

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Seniority: Senior
Category: Backend
Experience: 5+ years

api aws azure cloud distributed-systems docker gcp microservices mysql python rabbitmq rdbms

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Apexon is hiring a Senior Backend Python Developer in Toronto to build secure, scalable microservices for a core banking platform — designing REST APIs, optimizing performance, and owning initiatives end-to-end using Python, MySQL, RabbitMQ, and Docker, while mentoring junior engineers.

We're looking for a Senior Backend Python Developer to join a high-performing engineering team building secure, scalable, and high-performance solutions within a core banking platform.

The ideal candidate will have strong experience in Python, microservices, distributed systems, REST APIs, SQL/MySQL, messaging, and system design, with a proven ability to own large initiatives end-to-end.

5+ years of Software Development experience

RDBMS concepts – Transactions, Isolation Levels, Locking & Deadlocks

RabbitMQ or similar Message Brokers

Docker / Containerized Applications

Strong System Design & Technical Design experience

Nice to Have

Cloud experience – AWS, Azure, or GCP
Payroll Provider integrations
Experience working on high-volume transaction processing systems

What You'll Do

Design and develop scalable backend services and microservices
Develop and maintain RESTful APIs
Own large initiatives from technical design through production delivery
Create technical design specifications and contribute to architecture decisions
Optimize application performance to meet SLAs
Participate in sprint planning, estimation, and technical discussions
Conduct code reviews and promote engineering best practices
Mentor junior engineers and collaborate with cross-functional teams

Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field

Degree must be from a Canadian or US university

5+ years of professional software development experience

Strong communication and problem-solving skills

Ability to independently own features and projects end-to-end