Senior Software Engineer

İstanbul & Ankara, Turkey Hybrid

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We are looking for a “Senior Software Engineer” who will be responsible for developing complex technologies with C#, Net Core, ASP.NET Core and Angular for our growing Software Development Team. If you are passionate these technologies, we believe that this position is just for you!


Who we are :

Sestek is a global technology company helping organizations with Conversational Solutions to be data-driven, increase efficiency and deliver better experiences for their customers. Sestek’s AI-powered solutions are built by a team of 100+ engineers working on text-to-speech, speech recognition, natural language processing and voice biometrics technologies. Recently we have been acquired by Unifonic, a leading Communications Platform as a Service (CPaaS) provider. We are now an international organization of 500+ young people.


What we expect :

  • Object-oriented programming, SOLID principles, Domain Driven Design, Multi-threading, Aspect oriented programming
  • Microservice architecture, REST services, messaging
  • Writing Automated Tests (unit/integration tests)
  • Clean, readable and maintainable coding, continuous refactoring
  • Following open-source projects and trends, trying to be in
  • Good command of the English language

Who we are looking for :

  • Bachelor’s degree in a related field,
  • Minimum 4 years of experience
  • C#
  • ASP.NET Core, REST API development, Entity Framework Core
  • JavaScript, Typescript, HTML
  • Single Page Applications (Angular)
  • Relational and Non-relational/NoSQL databases
  • Experience in Azure/AWS Cloud
  • Experience in Kubernetes, Docker, Ansible, and Jenkins

These are some additional information : 

Work Methodology

  • Issue tracking: Azure DevOps (TFS)
  • Knowledge Repository: SharePoint, CRM, Azure DevOps (git)
  • Agile Management: SCRUM
  • Code Reviews: TFS
  • Unit Tests: 
  • Integration Tests: 
  • Build Server: Jenkins
  • Static Code Analysis: SonarQube, Fortify
  • Version Control System: Git
  • DevOps Processes:  Training & Consultancy
  • Tester(s): 
  • Freedom to choose tools: 
  • One command build possible? 
  • Up and running within 2 h 
  • Commit on the first day? 

Job Profile

  • Meetings: %5
  • Document Writing %5
  • Client Support %10
  • Maintenance, Bug Fixing %30
  • New Features %50

One – On – One

  • Regular Employee Evaluation 
  • Project Change Possible? 
  • Who chooses architecture? SW Architects & Developers
  • Who chooses technology? SW Developers
  • Who chooses conventions? SW Developers

What we can offer you :

  • A chance for being part of a company specialized in artificial intelligence
  • Flat organizational structure and an energetic team
  • Flexible/hybrid working style and you can work in Ankara or İstanbul office
  • Private health insurance, meal card, transportation allowance
  • Monthly budget for external activities with your colleagues
  • Incentive for graduate and postgraduate studies
  • Training opportunities for technical and personal development as well as support for certificate programs related to the field of profession
  • Birthday celebrations, parties and happy hours, “Welcome to Spring/Fall” events
  • Breakfast and healthy snacks at office all day long.


At Sestek, we believe in the power of diversity, and inclusive organizational culture. All candidates are considered equally regardless of their race, religion, color, age, sex, sexual orientation, gender identity or expression, national or ethnic origin, marital status, family status, disability, genetic characteristics.

If you would like to know more about our culture, please feel free to visit our LinkedIn Page.


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**Please make sure that the CV you submit does not contain special categories of personal data (referencing race, ethnic background, political opinion, philosophical belief, religion, sect or other beliefs, outward appearance, subscription to an association or union, health, sexual life, conviction, and security measures about you). We kindly ask you to ensure that your CV does not include any personal data that you prefer not to process and that you do not attach any files that contain personal data. **

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