Ciklum is looking for a Senior GoLang 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 GoLang Developer, become a part of a cross-functional development team engineering experiences of tomorrow. Responsibilities: As one of our Go engineers, you will be responsible for working closely with our point-of-sale partners, be comfortable communicating with non-technical people, and have a proactive approach to problem solving. Uphold Code Quality & System Reliability – Write clean, effective, and idiomatic Go, ensuring our codebase is maintainable and scalable. Participate in pair programming and code reviews, providing and receiving constructive feedback to uphold our standards. Act as a Technical Bridge to Partners – Serve as a key technical point of contact for our POS partners. Clearly communicate integration requirements, troubleshoot issues, and translate complex technical concepts for non-technical stakeholders to ensure smooth, successful partnerships. Champion 'Working Out Loud' – In our hybrid environment, proactively share your work, progress, and challenges in Slack and through clear documentation. Contribute to a culture of transparency and collective ownership, ensuring the entire team stays informed. Practice Test-First Development – Apply TDD and automated testing practices to guide design, prevent regressions, and ensure fast, reliable feedback loops across the system. Diagnose & Resolve Production Issues – Investigate and solve complex technical problems within our live systems. Collaborate with the team to debug integration failures, identify root causes, and implement lasting solutions that improve system performance, stability, and visibility Requirements: Commercial Go Experience – A track record of writing clean, maintainable, and idiomatic Go in a professional environment Distributed Systems Knowledge – Solid understanding of microservice architectures and hands-on experience with asynchronous, event-driven communication patterns API Development & Integration – Strong experience designing, building, and consuming APIs, particularly for third-party integrations XP Practices & Mindset – Experienced in eXtreme Programming practices, including pair programming, collective ownership, and short feedback cycles Test-Driven Development (TDD) – Strong advocate of a test-first approach; hands-on experience applying TDD consistently to guide design, improve code quality, and prevent regressions Automation Testing – Commitment to quality through comprehensive automated testing (unit, integration, contract, and end-to-end), ensuring fast, reliable feedback loops Coaching & Mentoring – Skilled in coaching peers on TDD, pairing, and XP principles to improve team practices and uplift engineering culture Technical Communication – Excellent communication skills, with a demonstrable ability to explain technical subjects and integration requirements clearly to non-technical partners Remote Collaboration – Experience working effectively in an asynchronous, remote team environment, with a habit of "working out loud." Desirable: Docker and Kubernetes AWS DynamoDB gRPC and Protocol Buffers GitHub Actions 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. 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. #LI-AD1