UKEESS Software House is looking for a Middle FullStack JavaScript Engineer (React/NodeJS) to join our team for a full-time position (remotely in Ukraine or in Lviv’s office).
About the Project and Team
Our customer is the world’s largest family history and consumer genetics company. With more than 60+ billion digitized global historical records, 100 million family trees, and 18 million people in a growing DNA database, our client helps customers discover their family stories and gain actionable insights about their health and wellness. Are you passionate about dedicating your work to enriching people’s lives? Join us!
Our team owns a major portion of customer-facing web applications, serving over 3.5 million daily views. We focus on delivering a fast, engaging, and intuitive search experience to help users make meaningful genealogical discoveries. We work with a vast dataset of over 60 billion historical records, leveraging data aggregation techniques, efficient caching strategies, and orchestrated components to ensure performance and scalability. Our mission is to surface the most relevant insights quickly, making the exploration of family history as seamless and impactful as possible.
Responsibilities will include: * To partake in the design, architecture, and development of advanced software solutions * Write key algorithms to maximize scalability and reliability * Guide micro-service REST API design * Develop new features and run A/B tests * Implement high-end solutions for web applications * Perform high-quality code reviews * Perform code and architecture refactoring * Diagnose complex problems involving multiple systems and technologies
Requirements: * 3+ years of commercial experience with NodeJS and React * Recent and proficient experience with building RESTful services in a microservices environment * Proficient experience with TypeScript, JavaScript * Proven knowledge of both functional and object-oriented programming * Recent experience and a strong understanding of global state management (Redux preferred) * Deep understanding of asynchrony and memory management in JS * Applied knowledge of different logging and caching strategies for the aggregation layer * Strong understanding of data structures and design patterns * Applied knowledge of bundlers and JS compilers * Proven knowledge of web security * Deep understanding of rendering and state management in React * Basic knowledge of cloud infrastructure, availability, load balancing, and DNS * Experience with cloud providers (AWS preferred) * Experience with CI/CD * English: Upper-Intermediate level at least (both spoken and written)
Nice to have skills: * Experience with optimizing for accessibility standards (screen readers) * Experience with high-load customer-facing applications * Hands-on experience with RTK, RTK Query * Experience with Redis * Applied knowledge of web performance and SEO optimization * Recent experience or good understanding of the micro-frontend pattern * Experience with Relational databases
If you’re excited about this role, but your experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyway. You may be the right candidate for this role!
What do we offer our new colleague? * Full-time position in a highly professional team * Competitive compensation (based on market data, but also depending on the technical level of the candidate) * Flexible work schedule * Individual approach to professional growth * Free English classes (online) * 3 health packages to choose from * Annual paid vacation and state holiday celebration * Lack of bureaucracy and micromanagement * Foreign business trips (after the war)
Our office in Lviv has generators and stable communication in case of “no electricity”. Also, you will have the: * Modern, comfortable office facilities (a barbecue zone, kitchens, lounge rooms, coffee machines, etc.) * On-site parking lot and charge station for Electric Cars * Corporate gifts, celebrations, and fun activities * Sports activities: ping-pong, soccer, workout
Suppose you have a passion for solving challenging problems, building scalable, robust systems, love working with the latest technologies in a fast-paced, flexible environment, and are excited at the prospect of having a significant impact on products with more than 3 million paying subscribers. In that case, we want to talk to you! ;-)
