Senior Full Stack Engineer

WHY CHOOSE SNGULAR?¿Es este su próximo empleo? Descúbralo leyendo la descripción completa a continuación y no dude en enviar su candidatura. People come to SNGULAR attracted by the opportunity to work on cutting-edge projects — and they stay because they collaborate with top professionals in a supportive, people-first culture. People First: Our number one value is \"People before results\". We believe that your voice, ideas, and perspective truly matter. Continuous Growth: With a start-up spirit and the structure of a global company (we're already 1,300+ strong), you'll have real opportunities to learn, earn new certifications, and evolve your career in the direction you choose. Amazing Benefits: Including flexible work models, a Wellbeing Pack for your mental and physical health, and plenty of initiatives to support your professional and personal balance. We work with respect, equality, humility, and teamwork — and we never forget to have fun while doing things right YOUR MISSION We are looking for a Senior Full Stack Engineer to join one of our strategic international projects with an international client based in the USA, a leading global partner of Atlassian. The company is currently migrating its suite of apps for Jira, Confluence, and Bitbucket from the existing Connect framework to the new Forge framework developed by Atlassian. You'll play a key technical role in designing and implementing new features while leading the migration of existing apps to Forge — ensuring scalability, performance, and best development practices in a fully agile environment. WHAT YOU'LL DO Design, develop, and maintain scalable web applications using Node.js and React. Lead the migration of Atlassian apps from Connect to Forge, ensuring seamless transitions and high-quality code. Collaborate closely with distributed teams across time zones in an agile environment (Scrum/Kanban). Participate in code reviews, architectural discussions, and technical planning. Work with relational databases (PostgreSQL, MySQL, etc.) to ensure data integrity and performance. Provide technical guidance and mentorship to other engineers. Stay up to date with Atlassian technologies and contribute to continuous improvement initiatives. WHAT WE'RE LOOKING FOR Must-have Skills 8+ years of experience in software development. Strong expertise in Node.js and React. Experience working with relational databases. Proven track record working in agile environments. Excellent communication and teamwork skills, especially in international setups. High level of English proficiency (B2–C1) — essential for daily communication with global teams and clients. Nice-to-have Skills Experience working with Atlassian tools (Jira, Confluence, Bitbucket). Familiarity with Atlassian Forge or app development for the Atlassian ecosystem. Knowledge of cloud environments and CI/CD pipelines. PERKS & BENEFITS Continuous learning access: Individual training budget, professional certifications, unlimited Udemy access, language classes, and internal learning programs. Work flexibility: Flexible schedule, remote work options, and the possibility of working from any of our Sngular Hubs. Extra days off: 22 vacation days + your birthday off + 2 days to attend tech events + December 24th and 31st off. Wellbeing Pack: Financial support for your physical and mental wellbeing. Flexible compensation plan tailored to your needs. Team-building activities and events throughout the year. Welcome Pack when you join the team. Choose your equipment: Windows or Mac. Extra initiatives with bonus opportunities: refer professionals, speak at events, publish technical articles, and more And last but not least: because we're truly Sngular xohynlm Every Friday we have a Virtual Gathering, along with parties and spaces where you can express yourself, propose ideas, and actively take part in making things happen.