Full Stack Python Developer

Are you a full stack developer who wants to build reliable, production-grade features on complex financial data, from backend services to client reporting?

We’re hiring an Intermediate Full Stack Python Developer to join an established financial software company building portfolio management software for banks and institutional clients.

The role owns each feature from start to finish: understanding the business need, planning how it fits across the front end, backend, and data layer, and seeing it through testing and release.

Who You Are A developer who takes full ownership of the features they deliver and remains the point of reference for them long after release

Comfortable working in unfamiliar areas of the system, approaching new domains, layers and tools with curiosity rather than hesitation

Attentive to how software behaves once it is live, writing code that is maintainable, observable and straightforward to troubleshoot under production conditions

Someone who uses AI coding tools with discipline, treating agents as assistants to be directed and verified, with clear limits on what they can access

Receptive to feedback and generous with knowledge, contributing to a team where everyone supports one another across the stack

Inclined to understand the business problem first, asking the questions needed to clarify a requirement before deciding how to build it

Work Type

Location: Toronto, ON (Hybrid, 3 days per week)

Vacancy Type: This role is a newly created position

What You’ll Do

Own product features end-to-end, analyzing requirements with stakeholders, designing the approach across the front end, backend, and data layer, and carrying the work through testing and release

Divide your time across the full stack, with the greater share on backend services and significant, ongoing involvement in front-end development

Design, build, and maintain Python services and APIs using FastAPI within a microservices architecture hosted on Azure

Develop maintainable user interfaces in React and TypeScript that present financial data and reporting to end users

Work within complex PostgreSQL data schemas, applying sound practices for data integrity and the protection of personally identifiable information

Build and maintain features that aggregate data from overnight and real-time feeds across multiple financial systems into end-user reporting

Investigate and resolve data issues in production, including identifying and optimizing slow-running queries

Build logging and maintainability into your applications so that critical production systems can be monitored and troubleshot effectively

Direct AI coding agents such as Claude through implementation, use GitHub Copilot within code review, and configure your own agent tooling within the established architecture

What We’re Looking For

3+ years of professional software development experience, with a track record of delivering production features

Solid Python backend experience with FastAPI or a comparable web framework, including RESTful API design, or strong backend experience in C#/.NET and readiness to work in Python

Hands-on experience building production interfaces with React and TypeScript

Strong SQL skills and relational database experience, ideally with PostgreSQL, including data modeling, query analysis, and performance tuning A sound understanding of microservices architecture and of how services, data feeds and integrations interact in a production system

Practical experience with AI coding assistants or agents such as Claude Code, GitHub Copilot or Cursor, including providing context, reviewing generated code and verifying results, or clear readiness to adopt them quickly

Proficiency with Git and modern delivery practices, including code review and automated testing The ability to translate business requirements into a clear implementation plan and to explain reasoning and trade-offs to technical and non-technical colleagues

Nice to have

Experience in FinTech, wealth management or portfolio management software

Experience with Azure services and CI/CD pipelines in Azure DevOps

Experience with production monitoring, log analytics, or support of business-critical systems

What Makes This Role Exciting

End-to-End Ownership: You’ll take each feature from the first requirements conversation to release, with responsibility across the whole system rather than a single layer

Complex Financial Data: The work draws on data from many financial systems, arriving both overnight and in real time

Freedom in Tooling: There are no restrictions on AI tools, and new ones are evaluated as soon as they appear A Growing Scope: Developers are increasingly involved in how their work is deployed, monitored, and supported, giving you room to grow beyond writing code

Base Salary: $100,000 – $120,000

Paid Time Off: Competitive vacation and personal days to maintain a healthy work-life balance

Health Benefits: Medical, dental, and vision benefits to support your overall well-being

We’re proud to support diversity and inclusion. Need accommodation during the hiring process? Just let us know — we’re here to support you!

AI Use Disclosure: STACK IT uses AI-enhanced tools to support initial candidate screening and interview note analysis. All assessments and hiring decisions remain human-led