Backend Developer

Octet Turkey; Sarıyer; Vor Ort; TRY 420.000 - 700.000; Vollzeit

Zusammenfassung

Octet is a financial technology company delivering cash flow management solutions. Octet Türkiye operates under Turkish financial regulations and focuses on scalable, high-performance software systems.

The team emphasizes modern architectures, automated testing, and integration with AI-powered workflows. The role targets senior developers with strong C#/.NET expertise, OOP/SOLID practices, and experience with microservices, queues, and databases.

Qualifikationen

• Bachelor's degree in Computer Engineering, Software Engineering, or related field.
• 5+ years of professional software development experience.
• Strong hands-on experience with C# and .NET.
• Solid knowledge of OOP, SOLID, clean code, and design patterns.
• Experience with asynchronous programming, RESTful APIs, and SOAP services.
• Experience with message queues and event-driven systems (RabbitMQ or Kafka).
• Experience with Redis, Elasticsearch, EF Core, MS SQL Server, and/or PostgreSQL.
• Experience in modular monolith and microservices architectures.
• Ability to write scalable, maintainable, and high-performance code.
• Familiarity with automated testing and TDD/BDD.

Kenntnisse

C# and .NET

OOP / SOLID / design patterns

Async programming / RESTful / SOAP

Message queues (RabbitMQ / Kafka)

Databases (Redis / Elasticsearch / EF 

SQL databases (MS SQL Server / Postgre

Modular monolith & microservices

Testing / TDD & BDD

AI-assisted development tools

Ausbildung

Bachelor’s degree in Computer Engineering, Software Engineering, or related field

Tools

RabbitMQ

Kafka

Entity Framework Core

MS SQL Server

PostgreSQL

Redis

Elasticsearch

Jobbeschreibung

Octet is a financial technology company that enables businesses to manage their cash flow much more easily and efficiently. Octet Türkiye operates within the scope of Law No. 6493 on Payment and Securities Settlement Systems, Payment Services, and Electronic Money Institutions, in accordance with the decision dated 26.01.2017 and numbered 7222.

Within the scope of the Personal Data Protection Law No. 6698, you may access the “Information Notice on the Processing of Personal Data” regarding your rights arising from the processing of your data on our website.

Qualifications

• Bachelor’s degree in Computer Engineering, Software Engineering, or a related field.
• 5+ years of professional software development experience.
• Strong hands-on experience with C# and .NET.
• Solid knowledge of OOP, SOLID principles, clean code, and design patterns.
• Experience with asynchronous programming, RESTful APIs, and SOAP services.
• Experience with message queues and event-driven systems, preferably RabbitMQ or Kafka.
• Experience with Redis, Elasticsearch, Entity Framework Core, MS SQL Server, and/or PostgreSQL.
• Experience in modular monolith and microservices architectures.
• Ability to write scalable, maintainable, and high-performance code.
• Familiarity with automated testing and TDD/BDD practices.

Nice to Have

• Ability to effectively use AI-assisted development tools in day-to-day software development workflows,
• Hands-on experience with LLM-based applications or AI-powered projects,
• Experience with RAG, embeddings, vector databases, and model-agnostic persistent memory architectures,
• Experience developing control mechanisms for custom agents, including authorization, validation, tool access, and human-in-the-loop approval workflows,
• Experience with payment systems or high-volume transactional applications.