Senior Full Stack Engineer

Ciklum is looking for a Senior Full Stack Engineer to join our team full-time in Ukraine.

We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.

About the role:

As a Senior Full Stack Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. 

Client for this project is a leading global provider of audit and assurance, consulting, financial advisory, risk advisory, tax, and related services. We are developing an innovative automation platform for the client. It is a globally operating, complex system that is built to enhance and unify the process of collecting, processing and providing Tax and Financial services. The platform is actively used on a daily basis and the team continues to add new features that automate the business flows.
Built from the ground up on a fresh codebase, we have been actively developing it. There is no legacy code, and we use the ultra-modern technology stack.

Responsibilities:

• Back-end development of new functionality
• Participating in code and architectural reviews, documenting architecture
• Communicating with stakeholders: PMs, developers, architects, QA engineers and other colleagues
• Proactive position in solution development, processes improvements
• Delivering the product roadmap and planning for the future
• Handle complex problems that might arise during solution development and provide field support with creative and rapid solutions
• Ensure that the highest coding standards are met and write highly testable, automatable and performant code over the whole SDLC

Requirements:

• More than 4 years of experience in commercial software development
• Excellent knowledge of computer science and computing theory:
  • OOP, DDD, SOLID, TDD, BDD
  • Database theory (RDBMS, NoSQL)
  • Algorithms and data structures
  • Design, architectural and enterprise patterns
• Understanding of network protocols and conventions (e.g. HTTP, REST), authentication and authorization flows and practices
• Experience with NoSQL (e.g. Mongodb, DynamoDB)
• Knowledge of key-value storages (e.g. Redis, Memcached)
• Basic knowledge of containerization and orchestration (Docker, Kubernetes)
• Excellent knowledge and experience with C# and .NET
• Commercial experience with:
  • .NET Framework, .NET Core, ASP.NET (Core, MVC, WebAPI)
  • ORM (e.g. Entity Framework, Dapper)
  • RDBMS (especially SQL Server)
  • Messaging systems (e.g. RabbitMQ, ServiceBus)
  • Cloud providers (e.g. Azure)
  • Testing frameworks (e.g. NUnit, XUnit, MSTest)
  • Web Servers
  • Version control systems (e.g. GIT)
  • Upper-intermediate English or above

Desirable:

• Experience with Search Engines (e.g. ElasticSearch, Azure Search)
• Experience with REST API development for mobile application
• Experience with integration with 3rd party solutions

What`s in it for you?

• Strong community: Work alongside top professionals in a friendly, open-door environment
• Growth focus: Take on large-scale projects with a global impact and expand your expertise
• Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications
• Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies
• Flexibility: Enjoy radical flexibility – work remotely or from an office, your choice
• Care: We've got you covered with company-paid medical insurance, mental health support, and financial & legal consultations

About us:

At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you'll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.
As one of Ukraine's largest IT companies and a top employer recognized by Forbes, we've spent over 20 years delivering meaningful tech solutions. We proudly support diverse talent and military veterans, recognizing their unique skills and perspectives they bring to shaping the future.

Want to learn more about us? Follow us on Instagram, Facebook, LinkedIn.

Explore, empower, engineer with Ciklum

Interested already? We would love to get to know you Submit your application. We can't wait to see you at Ciklum.