Senior Full-Stack Developer

Description

We are seeking a Senior Full-Stack Developer to join our team and enhance our proprietary payments platform. This role involves designing, implementing, and optimizing robust solutions to ensure high performance, scalability, and security. You will be responsible for developing and maintaining complex integrations with third-party systems and actively participating in all stages of new feature creation within our fintech payments solution. Collaboration within agile development cycles is key, as is identifying opportunities for technical and process improvements.

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.

Requirements

5+ years of commercial experience in web development. (required)
3+ years of hands-on experience with Node.js. (required)
3+ years of frontend development experience using React. (required)
Solid experience with NextJS, NestJS, Apollo, and Material UI. (required)
Strong proficiency in TypeScript. (required)
Commercial experience working with high-load SQL or NoSQL databases. (required)
Familiar with REST, GraphQL, and WebSockets. (required)
Understanding of TDD and writing effective automated tests. (required)
Experience with microservice architecture principles. (required)
Proficient with Git version control workflows. (required)
Hands-on experience with RabbitMQ and Redis. (required)
Experience with MongoDB and MySQL. (required)
Advanced level of English, both written and spoken. (required)

Benefits

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

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