Senior Backend Engineer

Türkiye·IstanbulRemoteFull-timesenior

EngineeringBackend Developer

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Quick Summary

Overview

We are looking for a Senior Backend Engineer with strong technical and communication skills to contribute throughout the development lifecycle of products in various exciting domains,

Technical Tools

EngineeringBackend Developer

We are looking for a Senior Backend Engineer with strong technical and communication skills to contribute throughout the development lifecycle of products in various exciting domains, which are realized with Commencis’ expertise in a fast-paced team environment.

If you are curious by nature, adaptive, collaborative, and always one step ahead, then join us and be a Commencer!

Design, develop, and maintain scalable and high-performance backend systems using Java and Spring Framework (Spring Boot, Spring MVC, Spring Data, Spring Security, etc.)

Contribute to system architecture decisions and lead the design of both monolithic and microservices-based solutions

Develop and maintain Backend-for-Frontend (BFF) layers and core backend services to support scalable applications

Strong understanding of design principles, design patterns, and architectural best practices (DDD, TDD, and layered architecture)

Build and maintain RESTful APIs and ensure high availability and performance

Collaborate with cross-functional teams including product, design, and QA to deliver high-quality solutions

Ensure code quality through code reviews, best practices, and clean code principles

Write and maintain unit and integration tests

Troubleshoot, debug, and optimize existing systems

Participate in CI/CD processes and support deployment activities

Mentor junior developers and contribute to team knowledge sharing

Stay up to date with emerging technologies and industry best practices

BSc/MSc/PhD degree in Computer Science or a related field, or equivalent practical experience

At least 5 years of professional experience in backend development with Java Strong experience with Spring Framework (Spring Boot, Spring MVC, Spring Data, Spring Security, etc.)

Strong understanding of OOP principles, design patterns, and scalable system design

Experience with microservices architecture and distributed systems

Hands-on experience with relational and non-relational databases (e.g., PostgreSQL, MySQL, MongoDB, Redis)

Familiarity with message brokers (e.g., Kafka, RabbitMQ) is a plus

Basic knowledge of front-end technologies such as JavaScript, HTML5 and CSS3

Strong unit test and debugging skills

Proficiency in code versioning tools such as Git

Familiarity with CI/CD pipelines and DevOps practices is a plus

Strong sense of analytical thinking and problem-solving skills

Excellent attention to detail

Highly effective time management and multitasking skills

Strong verbal and written communication skills in English

Experience with AI technologies and a strong interest in learning and applying them in real-world use cases

Proficiency in AI-assisted development practices, with the ability to effectively integrate AI tools into daily software development workflows.

Experience or domain knowledge in banking and financial services is considered a plus

Why Commencis?

We want people to thrive at Commencis. Here’s what Commencers like about working here:

Competitive Compensation & Benefits: We offer a competitive salary, private health insurance, pension and retirement plans through a company-backed pension system, meal card, commute compensation, work-from-home support, and a paid birthday off.

Happier Weekdays: We offer flexible working hours, including a remote working option. Enjoy online events, guest speakers, office refreshments, a meeting-light culture, and many more perks to enhance your weekdays.

Never Stop Learning: We support learning and development programs for almost anything. Additionally, we provide access to leading online e-learning platforms like Udemy and various libraries.

Community & Socials: We are a tight-knit community that loves gathering together. Our social activities include happy hours, workshops, a New Year party, breakfast & lunch get-togethers, movie nights, and our Summer Festival.

Open Culture: We maintain a flat organizational structure with a culture of direct and open communication. We value Commencers’ voices and address any suggestions and questions you may have.

About Commencis

Join us in paving the way for a thriving digital society!

Commencis has more than two decades of expertise in the world of experience design, software engineering and cloud technologies. Our products and solutions are used by leading brands in financial services, insurance, airlines and retail in more than 20 countries.

We help our clients around the globe to commence their next evolution and pave the way for a thriving digital society. We love discovering what’s next. We value collaboration, curiosity, and an open mindset at work.

If you share the same passion with our fellow Commencers, then let us unleash your world-class potential!

We will process your personal data as part of our recruitment procedures. To find out more, please consult our Candidate Privacy Notices.