This is us At Avenga, we believe that human creativity empowers technology that matters. Operating globally, our 6000+ specialists provide a full spectrum of services, including business and tech advisory, enterprise solutions, CX, UX and Ul design, managed services, product development, and software development. This is the job In Ukraine within the Oil & Gas industry, we are actively seeking a professional to strengthen our team. This role involves designing, developing, and delivering end-to-end features using Node.js and React, taking ownership of the full development lifecycle from requirements gathering to deployment and production support. This is you 5+ years of experience in full-stack software development; Proficient in React, Redux, and Redux Toolkit; High level of development with Node.js (latest LTS) and Express.js; Experience working with PostgreSQL and libraries such as pg-promise Solid with Redis for caching and performance optimization; Experience designing and consuming REST APIs; Strong understanding of software design principles, testing, and best practices; Experience working in Agile development environments; Strong problem-solving and communication skills; Upper-Intermediate level of English. Nice-to-have skills: Knowledge of MongoDB. This is your role Design, develop, and deliver full-stack features using Node.js and React; Own the full development lifecycle, from requirements gathering to deployment and production support; Build and maintain frontend applications using React, Redux, and Redux Toolkit; Develop scalable backend services and REST APIs with Node.js (latest LTS) and Express.js; Work with PostgreSQL (pg-promise) and Redis for data storage, caching, and performance optimization; Contribute to software architecture, ensuring scalable and maintainable solutions; Participate in code reviews, Agile ceremonies, and cross-team collaboration; Ensure code quality through testing, debugging, and adherence to engineering best practices. At Avenga, everyone matters. We provide equal opportunities in recruitment, career development, and leadership, regardless of race, ethnicity, gender identity, sexual orientation, disability, age, religion, or any other characteristic. We are committed to fostering a work environment where our diverse community of employees, candidates, and business partners actively shapes our growth. By bringing together people from different backgrounds and experiences, we build a workplace where everyone feels free to be themselves while honoring the boundaries of others.