Senior Backend Developer

Nakitera; Fatih; On-site; TRY 500,000 - 800,000; Full time

Job summary

Nakitera is recruiting for a backend engineer to design, develop, and maintain scalable JVM-based services in the fintech space. You will work on payment system integrations and AI-powered development workflows, contributing to secure, reliable backend platforms.

The role requires 5+ years of Java/Spring Boot experience, strong OOP and design principles, and familiarity with messaging systems. Experience in fintech is a plus. This is an on-site position in Turkey’s Marmara region.

Qualifications

• Bachelor’s degree in Computer Engineering, Software Engineering, or a related field.
• Solid understanding of OOP and design principles (SOLID, Clean Code, pragmatic design patterns).
• 5+ years of backend experience with Java and Spring Boot.
• Hands-on experience with AI-powered software development processes and SDD.
• RESTful API design and development experience.
• Familiarity with SOAP and XML technologies.
• Experience with RabbitMQ, Kafka, or similar messaging systems.
• Experience in payments/fintech domain is a strong plus.
• Experience with Unit Test Frameworks.
• Experience with AI-assisted coding tools is a plus.

Responsibilities

• Design, develop, and maintain scalable, high-performance backend services.
• Develop and enhance robust backend systems and APIs.
• Build and manage integrations related to payment systems and financial services.
• Apply clean code and design principles to ensure high code quality.
• Maintain and optimize existing systems for performance, reliability, and scalability.
• Troubleshoot, debug, and improve system stability.
• Contribute to technical documentation and knowledge sharing within the team.

Skills

OOP design principles

RESTful API design

SOAP/XML familiarity

Messaging systems

AI-powered development

Unit testing

AI-assisted coding tools

Payments/fintech domain

Education

Bachelors in Computer Engineering or Software Engineering

Tools

Java

Spring Boot

RabbitMQ

Kafka

Job description

With its Fintech 2.0 vision, Nakitera is digitizing your financial processes.

Nakitera brings together management, operational efficiency, payment diversity, data security, and customer loyalty solutions on a single platform. It simplifies businesses' financial processes, reduces operational burdens with innovative technologies, and maximizes efficiency.

Whether you are a small business or a large corporation, discover our end-to-end solutions for all your financial needs, explore the future of B2B fintech experience, and take your business processes into the future!

Qualifications

• Bachelor’s degree in Computer Engineering, Software Engineering, or a related field,
• Solid understanding of Object‑Oriented Programming (OOP) and design principles (SOLID, Clean Code, pragmatic design patterns),
• 5+ years of backend experience with Java and Spring Boot (or similar JVM‑based frameworks),
• Hands‑on experience with AI‑powered software development processes, including Spec‑Driven Development (SDD), AI‑assisted coding, and modern AI‑native development approaches,
• Hands‑on experience with RESTful API design and development,
• Familiarity with SOAP and XML technologies,
• Experience with RabbitMQ, Kafka, or similar messaging systems,
• Experience in the payments/fintech domain is a strong plus,
• Experience with Unit Test Frameworks,
• Experience with AI‑assisted coding tools (e.g., Cursor, GitHub Copilot, Claude, ChatGPT) is a plus.

Responsibilities

• Design, develop, and maintain scalable, high‑performance backend services,
• Develop and enhance robust backend systems and APIs,
• Build and manage integrations related to payment systems and financial services,
• Apply best practices such as clean code and design principles to ensure high code quality,
• Maintain and optimize existing systems for performance, reliability, and scalability,
• Troubleshoot, debug, and improve system stability,
• Contribute to technical documentation and knowledge sharing within the team.