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Senior Backend Developer (remote, fulltime) at CoolGames. We are looking for a Senior Backend Developer specializing in Golang to help build and maintain the systems powering our HTML5 casual games. As a critical member of an agile and collaborative team, you will be involved from initial design through ongoing maintenance, ensuring our backend infrastructure remains robust, scalable, and secure.. About CoolGames. At CoolGames, we’re proud to be a leading international HTML5 game studio, working with some of the world’s biggest ‘Big Tech’ game platforms, such as Netflix, Discord, Facebook and Microsoft Play. We also work with famous games IP such as Battleship, Angry Birds and Monopoly.  . CoolGames is part of Keesing, the world’s largest Braintainment company. Keesing is a financially strong publisher of engaging sudokus, crosswords and many other puzzles & games with a presence in over 20 countries, and headquartered in The Netherlands. . With the CoolGames HQ in Amsterdam, supported by our global remote teams, we offer market-competitive salaries, the chance to contribute to successful casual games that are played by millions and work directly with some of the biggest brands in the world. We believe in creativity, collaboration and delivering world-class gaming experiences, while giving you the choice to either join our Amsterdam studio or become part of our remote teams.. If you want to grow your career in a profitable, internationally recognized company, work closely with world-famous partners and be part of a highly professional international team - CoolGames is the right place for you.. About the role. As a Backend Developer at CoolGames, you'll design, develop, and maintain reliable and scalable backend systems using Golang, supporting our portfolio of casual web games. Your work will directly impact millions of players worldwide.. Your responsibilities will include:. . Designing, implementing, and maintaining backend services;. . Collaborating closely with designers, QA engineers, developers, and producers to refine requirements;. . Managing deployments, infrastructure-as-code, and continuous integration pipelines;. . Contributing to the ongoing stability, scalability, and security of our cloud services;. . Participating actively in code reviews, technical design proposals, and team processes;. . Championing and implementing security best practices;. . Monitoring and improving system performance and reliability.. . About you. You're proactive, enthusiastic, and eager to tackle challenging problems. You have strong technical skills, enjoy collaborating closely with your team, and are committed to continuous learning and improvement.. . At least 5 years of professional backend development experience;. . Strong proficiency in Golang;. . Solid knowledge of Linux environments and infrastructure best practices;. . Experience with Ansible and Docker;. . Experienced with Agile methodologies;. . Strong communication skills with excellent English proficiency;. . Experience with Git and automation pipelines;. . Experience with at least one major cloud provider (AWS, GCP, Azure);. . Passion for game development;. . Strong technical design skills with eye for detail;. . Understanding of network communication protocols.. . Nice to have:. . Familiar with GitLab CI/CD;. . Familiar with JavaScript/TypeScript and Node.js;. . Familiar  with Terraform and AWS;. . Familiar with Nakama. . Company Location: Netherlands.