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Senior Full-Stack Developer
Belgrade, Serbia
Big Stars is an end-to-end product engineering company based in Belgrade, Serbia. We create a space where people take initiative and go big.
We focus on:
- turning outdated systems into high-performing engines
- creating clean products that users actually love
- designing stable and secure environments
- building complex tech products
✅ Responsibilities:
✔️ Design, implement, and optimize robust solutions to enhance our proprietary payments platform, ensuring high performance, scalability, and security.
✔️ Develop and maintain complex integrations with payment providers, banks, and other third-party systems, ensuring seamless data flow and alignment with technical and regulatory requirements.
✔️ Actively participate in all stages of creating new features, from initial concept and technical design to implementation and final delivery.
✔️ Contribute to the development and ongoing evolution of our fintech payments solution, ensuring innovation and adaptability to market needs.
✔️ Collaborate in agile development cycles with bi-weekly sprints, utilizing practices such as SCRUM, grooming, and sprint planning to consistently deliver product value.
✔️ Identify opportunities for technical and process improvements, driving efficiency and innovation throughout the software lifecycle.
✔️ Work closely with design, product, and business teams to ensure features meet user expectations and support business objectives.
✔️ Develop and maintain complex integrations with payment providers, banks, and other third-party systems, ensuring seamless data flow and alignment with technical and regulatory requirements.
✔️ Actively participate in all stages of creating new features, from initial concept and technical design to implementation and final delivery.
✔️ Contribute to the development and ongoing evolution of our fintech payments solution, ensuring innovation and adaptability to market needs.
✔️ Collaborate in agile development cycles with bi-weekly sprints, utilizing practices such as SCRUM, grooming, and sprint planning to consistently deliver product value.
✔️ Identify opportunities for technical and process improvements, driving efficiency and innovation throughout the software lifecycle.
✔️ Work closely with design, product, and business teams to ensure features meet user expectations and support business objectives.
✅ Requirements:
✔️ 5+ years of commercial experience in web development.
✔️ 3+ years of hands-on experience with Node.js.
✔️ 3+ years of frontend development experience using React.
✔️ Solid experience with NextJS, NestJS, Apollo, and Material UI.
✔️ Strong proficiency in TypeScript.
✔️ Commercial experience working with high-load SQL or NoSQL databases.
✔️ Familiar with REST, GraphQL, and WebSockets.
✔️ Understanding of TDD and writing effective automated tests.
✔️ Experience with microservice architecture principles.
✔️ Proficient with Git version control workflows.
✔️ Hands-on experience with RabbitMQ and Redis.
✔️ Experience with MongoDB and MySQL.
✔️ Advanced level of English, both written and spoken.
✔️ 3+ years of hands-on experience with Node.js.
✔️ 3+ years of frontend development experience using React.
✔️ Solid experience with NextJS, NestJS, Apollo, and Material UI.
✔️ Strong proficiency in TypeScript.
✔️ Commercial experience working with high-load SQL or NoSQL databases.
✔️ Familiar with REST, GraphQL, and WebSockets.
✔️ Understanding of TDD and writing effective automated tests.
✔️ Experience with microservice architecture principles.
✔️ Proficient with Git version control workflows.
✔️ Hands-on experience with RabbitMQ and Redis.
✔️ Experience with MongoDB and MySQL.
✔️ Advanced level of English, both written and spoken.
✅ We offer excellent benefits, including but not limited to:
🏢 Modern office in New Belgrade
✈️ Relocation package for international candidates
🌴 24 vacation days annually
🤒 6 sick days without medical certificate
🏥 Premium Health Insurance (coverage up to 5,000 EUR annually)
🏋️ Sports package (FitPass membership)
🗣️ Language classes: Serbian (company-covered)
🍔 Company covered lunch provided 5 days a week
🎉 Special occasion gifts: birthday, wedding, newborn
📚 Learning & Development budget
🌍 Corporate events: international parties, team buildings, activities
📈 Career growth opportunities in a fast-growing company
🏢 Modern office in New Belgrade
✈️ Relocation package for international candidates
🌴 24 vacation days annually
🤒 6 sick days without medical certificate
🏥 Premium Health Insurance (coverage up to 5,000 EUR annually)
🏋️ Sports package (FitPass membership)
🗣️ Language classes: Serbian (company-covered)
🍔 Company covered lunch provided 5 days a week
🎉 Special occasion gifts: birthday, wedding, newborn
📚 Learning & Development budget
🌍 Corporate events: international parties, team buildings, activities
📈 Career growth opportunities in a fast-growing company
Big Stars paves the way to excellence by helping people grow.
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