Backend engineer scaling Redis and Valkey cache infrastructure for Affirm’s financial technology platform. Automating operations, migrations and self - service workflows for mission - critical data services.
About the role
- Software Engineer building mission-critical full-stack applications for Fitch Ratings. Working with modern technologies in a collaborative environment to deliver insights to financial analysts and decision-makers.
Responsibilities
- Design and build full-stack applications – Develop robust, scalable applications using Java/Springboot, Python (FastAPI/Flask), and ReactJS following best practices and design patterns
- Own the complete development lifecycle – Write clean, maintainable code, implement CI/CD pipelines with GitHub Actions, deploy to Kubernetes, and ensure quality through testing and code reviews
- Work with diverse data technologies – Build solutions using RDBMS (PostgreSQL, Oracle) and NoSQL (MongoDB) databases, optimize queries, and ensure data integrity
- Collaborate across teams – Partner with product managers, analysts, and other engineers to understand requirements and deliver solutions that meet business needs
- Drive engineering excellence – Apply SOLID principles and design patterns, conduct code reviews, solve performance challenges, and contribute to technical standards
- Maintain and improve systems – Troubleshoot production issues, optimize performance, and ensure reliability of applications at scale
- Stay current with technology – Learn and experiment with emerging technologies, share knowledge with the team, and contribute to continuous improvement
Requirements
- Full-Stack Engineering Experience – 10+ years of hands-on experience building enterprise applications and modern web technologies in production environments
- Software Engineering Fundamentals – Strong understanding of OOP concepts, design patterns, SOLID principles, algorithms, data structures, and ability to write clean, maintainable code
- Backend Development – Proficiency in Java, Spring Boot, Maven, and Python (Pandas, FastAPI, Flask) for building enterprise applications, data processing, and API development
- Frontend Development – Experience with ReactJS, Node.js, TypeScript/JavaScript, and modern web development practices
- Database Technologies – Hands-on experience with RDBMS databases (e.g., Oracle, PostgreSQL) and NoSQL databases (e.g., MongoDB)
- DevOps & Cloud – Experience with CI/CD pipelines, GitHub Actions, Kubernetes (K8s), shell scripting (Bash) for automation, and AWS cloud platform
- Outstanding collaboration and communication skills – Proven success with cross-functional teams, ability to articulate complex technical concepts to diverse audiences, and emotional intelligence to navigate organizational dynamics
Benefits
- Impactful work - Build applications used by analysts worldwide with direct visibility to your contributions
- Modern technology stack – Work with Java, Python, React, AWS, Kubernetes, and emerging AI technologies
- Continuous learning – Training, certifications, conferences, and clear paths to senior/principal/architect tracks
- Flexible environment – Work from our Toronto office with hybrid flexibility, competitive compensation, comprehensive benefits, and work-life balance
- Innovation culture – Experiment with new technologies, contribute ideas, and help shape technical decisions
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