We are looking for an experienced Full-Stack Engineer to join EU-based Client’s Technical Team for the development of a new portal and extension of an existing backend platform. The portal will enable small and mid-sized businesses to book staffing services fully online, supporting the company’s transition to a scalable B2B self-service platform.
Project — a customer-facing portal and backend platform that enables end-to-end online booking of staffing services, integrating web and mobile solutions while scaling existing production systems.
Must have:
Strong backend development experience with Ruby on Rails. Experience designing and building REST APIs and backend integrations. Solid knowledge of PostgreSQL, including data modeling and performance optimization. Experience working with scalable system architectures. Ability to work with and extend existing production systems. Experience with Git / GitHub workflows. Familiarity with AWS-based infrastructure. Upper-Intermediate English and better. Good to have:
Experience with React, React Native. Knowledge of TypeScript / JavaScript. Experience building or integrating microservices. Experience with Rust or C++ for performance-critical processing. Responsibilities:
Design, develop, and extend backend services using Ruby on Rails. Build and maintain scalable APIs supporting the new customer portal and mobile integrations. Improve and optimize PostgreSQL data models and database performance. Contribute to the evolution of a microservices-based architecture. Collaborate with frontend and mobile developers to support React Native integrations. Work with existing production systems, ensuring reliability, maintainability, and scalability. Support the development of performance-critical services where applicable. We offer:
Competitive salary with the regular review. Medical Insurance after 3 months probation period (can be used in Ukraine). Vacation (up to 20 working days). Sick leaves (10 working days). National Holidays as a time off (11 days). Online English courses. Accountant assistance and legal support. Flexible working schedule, remote, office-based or hybrid format. Fully-equipped office space located in the city center (ready for work in blackouts). Direct cooperation with the customer. Dynamic environment with low level of bureaucracy and great team spirit. Challenging projects in diverse business domains and a variety of tech stacks. Communication with Top/Senior level specialists to strengthen your hard skills. Online/offline teambuildings. Volunteering culture development and support.
