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, you will become a part of a cross-functional development team, engineering experiences of tomorrow.With almost 100 million active users across 25 countries, they’re a global food tech company As a recently formed team, they have many opportunities and ideas for sharing value back to the customers within their continuously expanding platform. They're looking for talented and trusted engineers to help them impress their customers.Responsibilities:Back-end development to meet customer’s business needs and implement components according to modern software development environment (cloud-based platforms, microservice architecture, etc.)Front-end development to meet customer’s business needsTaking part in the decision-making process in design application architecture, solution development, architecture, and code reviewDevelop and review feature design documents and provide inputs/updates to specifications for the solutionDesign and implement a set of various types of tests (unit, integration, functional, etc.)Proactive position in solution development, process improvementsWorking in an international distributed team in an Agile environmentCommunicate with PMs, engineers, Architects, QA, and other colleagues and stakeholdersDelivering the product roadmap and planningTo use high coding standards, software best practices and write highly testable, automatable and performant code over the whole SDLCRequirements:Experience in software development for more than 5 yearsExcellent knowledge in Computer Science, Computing TheoryParadigm & Principles (OOP, SOLID, DDD, TDD, BDD)Database theory (RDBMS, NoSQL)Code testing practicesAlgorithmsData structuresArchitectural, Enterprise and Design PatternsSecurity patterns, Reverse engineering resistance, Common attack types (OWASP)Understanding of network interactionsprotocolsconventions (e.g., REST, RPC)authentication and authorization flowsstandards and practices (e.g., oAuth, JWT)Excellent knowledge and experience in C# and .NET (5+ years)Good knowledge of Vue.jsPractical commercial experience with:REST API development.NET Framework, .NET Core, ASP.NET (Core, MVC, WebAPI)Testing frameworks (e.g.NUnit, XUnit, MSTest) (more than 2 years)ORM (e.g. Entity Framework, Dapper) (more than 2 years)RDBMS (e.g. SQL Server, MySQL/MariaDB, PostgreSQL) (more than 3 years)What`s in it for you?Strong community: Work alongside top professionals in a friendly, open-door environmentGrowth focus: Take on large-scale projects with a global impact and expand your expertiseTailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certificationsEndless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologiesFlexibility: Enjoy radical flexibility – work remotely or from an office, your choiceCare: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultationsAbout 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.