Description

Ciklum is looking for a Senior Full-Stack .NET Developer 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 .NET Developer, become a part of a cross-functional development team engineering experiences of tomorrow. This role requires strong SQL proficiency and a willingness to quickly learn CI/CD practices and Azure cloud services if not already experienced. This full-time position emphasizes collaboration, cross-training, and delivering high-quality solutions in an agile environment.

Responsibilities

Design, develop, and maintain robust, scalable software solutions Collaborate with cross-functional teams to deliver features and resolve technical challenges Write clean, efficient, and maintainable code following best practices Participate in code reviews, testing, and debugging to ensure high-quality deliverables Optimize applications for performance, scalability, and security Stay current with industry trends and contribute to continuous improvement Work in an agile environment with regular sprints and deployments

Requirements

Advanced knowledge of React (., building responsive UIs, state management with Redux or Context API, performance optimization, hooks, and component lifecycle) Experience working with .NET backends (., familiarity with .NET Core/.NET Framework, C#, for web APIs and services) Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience) 6+ years of professional software development experience (mid-senior level) Strong proficiency in SQL (., writing complex queries, database design, and optimization with relational databases like SQL Server or PostgreSQL) Excellent problem-solving skills and attention to detail Strong communication and teamwork abilities Willingness to learn and adopt new technologies quickly, including CI/CD Azure pipelines (Azure DevOps) and Azure services (., App Services, Functions) if not already proficient Experience with version control systems (., Git) Knowledge of RESTful APIs, microservices architecture, and containerization (., Docker) Familiarity with agile methodologies and tools like Jira or Azure DevOps

Desirable

Proficiency in full-stack development, including for backend services (., , API development) and modern JavaScript/TypeScript ecosystems CI/CD tools for full-stack workflows, Azure for hosting .NET and React applications

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