Senior Backend Engineer (Python & Systems Architecture

About this role

Design and implement scalable backend services and APIs in Python
Own API architecture, service boundaries, and integration patterns
Design efficient, maintainable and scalable database schemas
Contribute to overall system architecture and technical direction
Ensure security best practices across application and infrastructure layers
Work closely with frontend developers and contribute where needed
Improve CI/CD pipelines, deployment processes, and operational reliability
Participate in technical planning, and documentation
Participate in code reviews, testing
Troubleshoot complex production issues and performance bottlenecks

The ideal candidate is a highly experienced Backend Engineer who is able to design, build and scale production-grade systems.  This role is heavily backend-focussed, but requires strong collaboration across architecture, infrastructure and frontend teams.Senior-level Python development experience
Strong API design experience (OpenAPI, REST)
Deep understanding of database design and data modelling (MySQL)
Strong system design and distributed systems knowledge
Familiarity with modern frontend frameworks and TypeScript (Angular experience strongly preferred)
Strong understanding of application and infrastructure security
DevOps experience, including CI/CD and deployment workflows
Experience with Agile/Scrum/Jira/Git
Team player with a positive mindset and ability to work independently and take ownership of projects
Good command of English
Must be eligible to work in the EU and a resident in Budapest, Hungary
Nice to Have:Experience with SQLAlchemy
Experience with AWS services and infrastructure
Infrastructure-as-code experience, especially CloudFormation

Opportunity to join a dynamic entrepreneurial team committed to a common mission and an open mind for new ideas and methodologies
Ability to work directly with the largest financial institutions on IT and data management projects as part of a supportive team
Training and education initiatives to enhance personal and professional development
Possibility to work from home
Competitive compensation and benefits package
Flexible working environment (1 mandatory office day)
Intensive onboarding training and mentoring
Team building and off-site events
Official weekend workdays are granted as extra holidays
Clear communication throughout the company
iQuant Solutions is an equal opportunities employer