Backend Engineer
We are looking for a Backend Engineer to help architect and build our platform from the ground up. The focus is API request optimization and database performance — designing efficient service APIs, tuning PostgreSQL schemas and queries, and scaling event-driven systems with Kafka on AWS. We care about strong backend fundamentals more than any single language: our services are mostly Go and Python, and we are happy for you to pick up Go on the job.
Responsibilities
- API Performance
Design and optimize service APIs — request paths, latency, throughput, and reliability
- Database Optimization
Tune PostgreSQL schemas, queries, indexes, and data models for performance at scale
- Service Development
Build and maintain backend services (the stack is primarily Go and Python)
- Architecture
Work with event-driven systems and message queues (specifically Kafka)
- Cloud Operations
Manage and scale infrastructure within AWS
- Team Collaboration
Participate in code reviews and help set the standard for development practices and CI/CD processes
Requirements
- Location: based in Belgrade or Novi Sad, Serbia
- 3–5 years of professional backend development experience
- Strong backend fundamentals in any modern server-side language — Go experience is welcome but not required
- API Design: Proven experience designing and optimizing high-performance APIs
- Database Skills: Strong PostgreSQL — schema design, query tuning, and optimization
- AWS Expertise: Hands-on experience with cloud architecture and deployment
- Communication: Strong analytical and written communication skills for a collaborative environment
Nice to have
- Experience with Docker, Kubernetes, or Terraform
- Familiarity with Fintech / Financial Services industry standards
- Knowledge of Microservices and CI/CD tools (like ArgoCD)
- Experience with security best practices and cloud monitoring/logging
What will be your next steps?
Quick non-technical conversation
Our initial conversation is a brief, non-technical discussion to understand your background and career aspirations. We're keen to learn about your communication style and how you approach teamwork and decision-making.
60 to 90 minutes technical interview
This in-depth technical assessment, lasting 60 to 90 minutes, is designed to evaluate your specific skills and expertise. We will present you with challenges relevant to our client’s requirements.
Client interview
In this stage, you will meet directly with the client for a final technical discussion. This interview will be similar in format to our internal technical assessment, allowing the client to see firsthand how your expertise aligns with their specific project needs and team.
Offer
Congratulations on successfully completing our evaluation process. We are pleased to extend an offer and recommend you to our clients.
Apply for this role
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