Apexon is a digital engineering services company helping organizations build modern, scalable technology solutions. In this role, you’ll have the opportunity to work with experienced engineering teams on high-impact financial technology platforms and distributed systems .
We are looking for a Senior Software Engineer to design and build highly scalable, secure, and high-performance solutions for a core banking platform .
You’ll join a cross-functional engineering team building and enhancing a distributed, microservices-based platform that processes high volumes of financial transactions. This role offers an chance to contribute to system architecture, technical design, product design, and end-to-end feature delivery .
What You’ll Do Design, develop, and deliver high-quality backend features and enhancements
Own the end-to-end delivery of large-scale initiatives spanning 3+ months
Create and contribute to technical and system design specifications
Participate in sprint planning, estimation, and technical discussions
Design and build secure, scalable, distributed systems
Optimize application and system performance to meet defined SLAs
Conduct peer code reviews and promote engineering best practices
Mentor junior engineers and contribute to a strong engineering culture
Collaborate closely with product, engineering, and cross-functional teams




What You Bring 7+ years of professional software development experience
Strong experience with microservices architecture and distributed systems
Strong proficiency in Python ; experience with another object-oriented language is also considered
Strong SQL skills and experience with MySQL
Solid understanding of RDBMS concepts , including transactions, isolation levels, locking, and deadlocks
Experience with RabbitMQ or similar message brokers
Experience with Docker and containerized environments
Experience with GitHub or similar source-code repositories
Comfortable working in Unix/Linux environments
Strong communication, collaboration, and problem-solving skills
Nice to Have Experience integrating with Payroll Providers and Time & Attendance platforms
Experience with cloud computing platforms
Experience working in financial services, banking, or other high-volume transaction environments
Education Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field
Degree must be from a Canadian or U.S. university
Additional Information Benefits: Currently, benefits are not available in Canada; a advantages proposal has been submitted to leadership
We are an Equal Opportunity Employer
We are committed to providing an accessible, inclusive, and collaborative work environment

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📌 Python Developer (Ontario)
🏢 Apexon
📍 Ontario