Senior Backend (Python/Django) Engineer - Splint Invest team

We at Holycode are currently looking for an experienced Senior Backend (Python/Django) Engineer to join our team, Splint Invest. 

Splint Invest is an ambitious FinTech mobile app that leverages technology to empower our users’ financial journeys. Our ecosystem includes websites, mobile applications, web servers and multiple third-party integrations, each contributing to a seamless and secure user experience as well as allowing us to make data-driven marketing and business decisions.

What you'll work on

• Build and scale the backend of our FinTech mobile application using Python/Django.
• Own and run the platform: from development and deployment to monitoring and incident management.
• Drive architecture decisions and lead solution discovery across the engineering team.
• Work closely with DevOps to handle releases, migrations, infrastructure scaling, and security.
• Lead integrations with external services: payment providers, KYC/EMI providers, etc.
• Conduct code reviews, participate in design discussions, and enforce engineering best practices.
• Support and mentor other engineers as a lead-by-example team player.

• 6+ years of backend development experience, including deep knowledge of Python/Django.
• 2+ years of informal or formal experience mentoring other developers (not a must)
• Solid grasp of DevOps processes – you’re comfortable owning infrastructure and deployments.
• Strong understanding of databases (PostgreSQL), REST APIs, system design, and security best practices.
• Experience working in fast-paced, cross-functional teams, ideally in a startup or scale-up.
• Proactive, structured, and self-managed work style – you're not waiting for someone to hand you a Jira ticket.
• Fluent in English; excellent communicator across both technical and non-technical teams.

Bonus if you have

• Experience with AWS Fargate or similar container orchestration platforms.
• Familiarity with tools like GitLab CI/CD, Sentry, or similar observability stacks.
• Experience with compliance-heavy environments (e.g., FinTech, RegTech).
• You've previously been a founding engineer, tech lead, or had product/infrastructure ownership.

Benefits:

• High-growth company in which you can find exciting and trend-setting challenges
• Amazing product to work on
• Familial working atmosphere in an open-minded multinational team
• All necessary equipment – up to you to decide what you prefer
• The budget for professional improvement (courses, conferences, books…)
• Budget for the mastery of the English language during the working hours
• Nice office in Belgrade
• Fully stocked kitchen (tea, coffee, fruits, soft drinks, snacks…)
• Tournaments of table tennis, table soccer, and darts in our office
• Skilled and senior co-workers
• Opportunities to build products that really make a difference
• Opportunities to learn and grow with us

If you are looking for an environment where you can grow professionally, learn from the best in the field, balance work and life habits and have a pleasant and enthusiastic environment, please submit your CV in English.