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Senior Software Engineer (Scale-Up Phase / Air Defence Command

Company:
Atos
Location:
Cankaya, Ankara, Turkey
Posted:
September 14, 2026
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Description:

Atos is a global leader in digital transformation with c. 78,000 employees and annual revenue of c. € 10 billion. European number one in cybersecurity, cloud and high-performance computing, the Group provides tailored end-to-end solutions for all industries in 68 countries. A pioneer in decarbonization services and products, Atos is committed to a secure and decarbonized digital for its clients. Atos is a SE (Societas Europaea) and listed on Euronext Paris.

The purpose of Atos is to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence. Across the world, the Group enables its customers and employees, and members of societies at large to live, work and develop sustainably, in a safe and secure information space.

We are growing our team for the next phase of our strategic defense industry project, further strengthening our position in the sector through our newly renewed long-term contract and are looking for Senior Software Engineers based in Ankara.

If you have strong experience in software development and would like to work on impactful projects, we would be happy to hear from you.

If you want to take part in shaping large-scale, cutting-edge solutions in the defense industry, this role is for you!

Technical Requirements

B.Sc. degree in Computer Engineering, Computer Science or a related field

8+ years of proven experience in software development

Strong debugging, performance optimization, and problem-solving skills.

Strong proficiency in C# and .NET Framework development.

RESTful API design and integration (XML, JSON, etc.)

Extensive experience with Angular (v10+) and TypeScript. Experience with React is also considered valuable.

Experience with ORM frameworks and concepts, including concurrency management, loading strategies, validation, and caching.

Experience with source control and configuration management tools (e.g., Git, Azure DevOps, TFS, ClearCase).

Familiarity with Continuous Integration and DevOps concepts

Solid understanding of object-oriented programming (OOP), SOLID principles, and design patterns.

Experience working in Agile/Scrum development environments.

Ability to perform code reviews and mentor junior developers.

Experience with front-end architecture, component-based development.

Nice To Have Areas Of Experience

Experience with defence projects compliant with IEEE 12207

Java

WPF / Silverlight (XAML)

Entity Framework, NHibernate

WCF services implementation

Key-value stores (HBase, Cassandra, Redis, etc.)

Messaging queue technologies (RabbitMQ, MSMQ, etc.)

Responsibilities

Analyze user requirements and create software specifications

Actively participate in the design, development, and maintenance of software applications

Design and document technical solutions

Develop and maintain applications in line with Atos processes and industry standards

Perform unit testing, code reviews, and refactoring

Support release deployments and resolve post-production issues

Participate actively in team collaboration, knowledge sharing, and technical discussions.

Provide timely support to customer needs, troubleshoot issues, and deliver solutions

Write clear technical documentation and present complex information effectively

General Skills And Attributes

Strong communication and collaboration skills

Reliable, responsible, and self-motivated team player

Solid problem-solving and analytical mindset

Proactive in adapting to changing project needs

Passionate about continuous learning and self-improvement

High sense of ownership, accountability, and urgency

Willingness to travel abroad when needed

Having a valid National Security Clearance (MoD, Turkey) is a plus

What We Offer

GPTW Certified Company

Competitive Compensations And Benefits

Flexible benefit program

Private health insurance

Life insurance

Performance Bonus

Accolade bonus

Referral bonus

Transportation allowance

Meal allowance

Kindergarten allowance

Buddy program

Flexible working hours at Atos or home office

Company SIM card

Days of annual leave above the legal minimum

Atos University Access – Professional and personal development through continuous education and certification

Wellbeing days

Friendly working environment

BYOD - Bring your own mobile device campaign

#FT

Thanks for taking time to review our job ad. If you believe this is the right match, please do not hesitate to apply with your CV in English.

We are eager to learn more about our applicants!

At Atos, our ambition is to be a diverse and inclusive company where people are truly free to be themselves. They can thrive, achieve their personal goals and innovate without limitations. We welcome everyone to apply.

Here at Atos, we want all our employees to feel valued, appreciated, and free to be who they are at work. Our employee lifecycle processes are designed to prevent discrimination against our people regardless of gender identity or expression, sexual orientation, religion, ethnicity, age, neurodiversity, disability status, citizenship, or any other aspect which makes them unique. Across the globe, we have created a variety of programs to embed our Atos culture of inclusivity, and work hard to ensure that all our employees have an equal opportunity to contribute and feel that they are exactly where they belong.

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