Senior Software Engineer – Full Stack

Haventreebank; Toronto; On-site; CAD 85,000 - 110,000; Full time

Job summary

Haventree Bank in Toronto is seeking a Senior Software Engineer (Full Stack) to design and build end-to-end solutions for customer-facing applications. The ideal candidate will possess strong experience in Java, Spring Framework, and front-end technologies like React. Responsibilities include developing scalable APIs, leading technical discussions, and mentoring junior engineers.

This is an opportunity to make a significant impact within a growing team committed to improving financial solutions for Canadians.

Qualifications

• 4+ years of experience building full-stack applications in production.
• Hands-on expertise with React for web and React Native for mobile.
• Experience with CI/CD pipelines and automated testing.

Responsibilities

• Design, develop, test, and scale full-stack applications.
• Build and maintain RESTful APIs using Spring Boot.
• Lead technical discussions and mentor junior engineers.

Skills

Full-stack application development

Java and Spring Framework

React and React Native

Strong problem-solving skills

Education

Bachelor’s or Master’s degree in Computer Science or related field

Tools

Azure

SQL/NoSQL databases

Terraform

GitHub

Job description

Haventree Bank is a private Canadian Schedule 1 bank specializing in alternative mortgage programs and insured GIC deposits. We help hardworking Canadians from coast‑to‑coast achieve homeownership by offering flexible mortgage solutions. Our insured GIC deposits offer competitive rates and are available through a variety of wealth management platforms.

About Haventree Bank

Headquartered in Toronto, Ontario, Haventree Bank (Haventree) is a mission driven alternative mortgage lender. The name Haventree is representative of the bank’s mission to help its customers find a place of refuge and to lay down new roots for the future. Haventree exists to be a catalyst of financial security and upward mobility for Canadians who are underserved by the traditional financial system.

Position Summary

Haventree is looking for a Senior Software Engineer (Full Stack) to join our fast‑growing team. In this role, you will design and build end‑to‑end solutions that power our customer‑facing web and mobile applications. You will work across both backend and frontend layers, developing scalable APIs and building high‑quality user experiences. You will be responsible for delivering high‑quality, scalable full‑stack solutions while leading technical discussions, setting engineering standards, and mentoring other engineers. You will drive full lifecycle development—from system design and architecture to implementation and deployment—ensuring best practices across backend services and frontend/mobile applications. As a senior engineer, you'll proactively identify areas for improvement, propose innovative solutions, and ensure the maintainability, scalability, and performance of the codebase. You will prioritize testability, observability, and security throughout the development process.

Major Duties & Responsibilities

• Design, develop, test, refactor, and scale full‑stack applications, including backend services and frontend/mobile interfaces
• Build and maintain RESTful APIs and microservices using Spring Framework (Spring Boot)
• Develop responsive and performant web applications using React and mobile applications using React Native
• Collaborate with cross‑functional teams (product, design, engineering) to understand user needs and deliver impactful solutions
• Lead technical design and architecture discussions across both backend and frontend domains
• Maintain high code quality through code reviews, automated testing, and best practices
• Mentor junior engineers and contribute to a culture of continuous learning and improvement
• Drive adoption of modern engineering practices, including CI/​CD, monitoring, and observability

Qualifications & Experience

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field
• 4+ years of experience building full‑stack applications in a production environment at scale
• Strong experience with Java and Spring Framework (Spring Boot) for backend development
• Hands‑on expertise with React (web) and React Native (mobile development)
• Familiarity with Azure, SQL/NoSQL databases, Terraform, GitHub, and CI/​CD pipelines
• Solid understanding of scalable system architecture and modern web/mobile application design patterns
• Experience with testing frameworks across the stack (unit, integration, and UI testing)
• Strong problem‑solving skills and ability to work in a fast‑paced, collaborative environment
• Start‑up or high‑growth environment experience is a plus

While we thank everyone for their interest in Haventree Bank, please note that only candidates selected for an interview will be contacted. Haventree Bank is committed to providing accommodation when needed. If you require an accommodation, we will work with you to meet your needs.

Equal Opportunity

Haventree Bank embraces equal opportunity, diversity, and inclusion. Please let us know if you require any accommodations during the recruitment and selection process by contacting [e-mail].