Intermediate Backend (Python) Software Developer to design, build and maintain secure, scalable APIs and integrations on an API gateway platform within the banking and financial services industry (Hybrid, Calgary AB)[2026-98]
Our banking client is seeking a Intermediate Backend (Python) Software Developer to design, build and maintain secure, scalable APIs and integrations on an API gateway platform within the banking and industry (Hybrid, Calgary AB)[2026-98].
Overview:
This is a backfill on a small team (1-5), building API products and solutions that integrate into the gateway and broader ecosystem.
Must-Haves:
- 6+ years of experience as a Software Developer
- Proven experience developing and maintaining REST APIs for secure, scalable and performant integrations
- Experience using CI/CD pipelines, with automated testing using PyTest
- Strong written and verbal communication skills, able to explain technical solutions and influence stakeholders to reach consensus
- Prior experience working within Canadian banking environments
Nice-to-Haves:
- Experience with SOAP APIs
- Experience with API gateway platforms and API products
- Experience developing automated test harnesses
- Experience leading technical discovery and ideation sessions
Responsibilities:
- Design, code, unit test and integrate new features as defined by the technical product owner and team
- Build and maintain APIs and API products that support secure, scalable integrations
- Lead ideation and technical discovery sessions, proposing digital solutions to advance platform capabilities
- Assist in developing automated test harnesses to ensure high-quality code
- Monitor, diagnose and resolve operational and performance issues to keep production services highly available
- Collaborate with cross-functional teams to integrate APIs and solutions into the gateway and broader ecosystem
- Complete deployment, maintenance, support and business documentation
Overview:
This is a backfill on a small team (1-5), building API products and solutions that integrate into the gateway and broader ecosystem.
Must-Haves:
- 6+ years of experience as a Software Developer
- Strong JavaScript (Node.js, Next.js) and Python development experience
- Proven experience developing and maintaining REST APIs for secure, scalable and performant integrations
- Experience using CI/CD pipelines, with automated testing using PyTest
- Strong written and verbal communication skills, able to explain technical solutions and influence stakeholders to reach consensus
- Prior experience working within Canadian banking environments
Nice-to-Haves:
- Experience with SOAP APIs
- Experience with API gateway platforms and API products
- Experience developing automated test harnesses
- Experience leading technical discovery and ideation sessions
Responsibilities:
- Design, code, unit test and integrate new features as defined by the technical product owner and team
- Build and maintain APIs and API products that support secure, scalable integrations
- Lead ideation and technical discovery sessions, proposing digital solutions to advance platform capabilities
- Assist in developing automated test harnesses to ensure high-quality code
- Monitor, diagnose and resolve operational and performance issues to keep production services highly available
- Collaborate with cross-functional teams to integrate APIs and solutions into the gateway and broader ecosystem
- Complete deployment, maintenance, support and business documentation
Disclaimer:
AI may be used in evaluating candidates.
This posting is for an existing vacancy.
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Intermediate Backend (Python) Software Developer to design, build and maintain secure, scalable APIs and integrations on an API gateway platform within the banking and financial services industry (Hybrid, Calgary AB)[2026-98] employer: S.I. Systems Ltd.
Join a dynamic team in Toronto's vibrant financial services sector, where innovation meets collaboration. As a Senior Go Developer, you'll not only enhance your technical skills but also enjoy a supportive work culture that prioritizes mentorship and professional growth. With a hybrid work model and a focus on best practices, this role offers a unique opportunity to lead impactful projects while contributing to the evolution of payment applications.
