Senior Software Engineer (Python, Rust) (Edtech)

TL;DR

Senior Software Engineer (Python, Rust): Designing and implementing backend services within a microservices architecture with an accent on high-performance Rust and scalable Python (FastAPI) services. Focus on optimizing system reliability, evolving inter-service communication patterns, and integrating AI-driven capabilities like RAG and vector databases.

Location: Hybrid in Istanbul, Bulgaria, or Serbia (2 days office, 3 remote), or Remote in other locations. Employment is limited to full-time legal agreements in Bulgaria, Serbia, and Turkey.

Company

An all-in-one platform for education and research leveraging machine intelligence and data science to improve digital education efficiency and access.

What you will do

• Design and implement backend services in Rust within a microservices architecture.
• Maintain and evolve existing Python services using FastAPI.
• Write maintainable, testable, and performant code while participating in code reviews.
• Collaborate with QA and DevOps to improve reliability, observability, and performance.
• Contribute to architectural decisions regarding language choice, communication patterns, and data modeling.

Requirements

• 5+ years of professional backend development experience.
• Solid production experience with Rust (minimum of 3 years).
• Strong Python proficiency (FastAPI, asyncio, mypy, pydantic).
• Deep understanding of microservices and communication (Kafka, RabbitMQ, NATS, gRPC/REST).
• Proficiency in PostgreSQL (indexes, transactions, query plans).
• English B2 or higher.

Nice to have

• Experience migrating Python services to Rust under real load.
• Exposure to vector databases such as Qdrant.
• Experience integrating LLM APIs (OpenAI, Anthropic).
• Familiarity with LangChain, LangGraph, and RAG.

Culture & Benefits

• Flexible schedule (typically 09:00-19:00 CET/EET).
• Choice of work equipment (laptop, monitor, etc.).
• English classes via iTalki ($130 monthly).
• Newborn bonus (€500 per child) and patent remuneration.
• Paid leave and hybrid/remote work options.