Senior Back - end Engineer (node.js)

Senior Back-End Engineer

OBRIO is an IT company with Ukrainian roots inside the Genesis business ecosystem. Our team consists of more than 300 talented professionals whose ambitions and striving for success help us build the best products on the market. We have offices in Kyiv and Warsaw. We are developing Nebula—the biggest brand in the spiritual niche. Nebula has over 65 million users worldwide and has been ranked as the № 1 lifestyle app of the day in the Apple Store and Play Market in the USA, Canada, and Australia several times. Nebula is available on iOS, Android, and Web.

Our mission is to make people happier by improving the quality of their relationships. Here are some details we would like to share with you:

• Nebula is #1 in its niche in terms of downloads and revenue targets;
• 65 million users worldwide;
• Users from 50+ countries;
• 4.8—our average AppStore rating (with more than 215 thousand ratings).
• OBRIO's achievements and team's expertise were shared in Tier-1 international and Ukrainian media, organizations, and brands such as Forbes Ukraine, TechCrunch, VECTOR, The Next Web, Tech.eu, Entrepreneur Media, Fast Company, AIN, IT Arena, MEGOGO, DOU, Projector Institute.
• OBRIO—a Forbes-recognized lovemark brand with the highest eNPS.

Who are we looking for?

We are looking for a Senior Back-End Engineer to join our Chat Team and play a key role in shaping the backend strategy, architecture, and performance of our real-time communication solutions.

This position is designed for an experienced engineer who is ready to step beyond execution: drive complex technical decisions, influence architecture at scale, and prepare for a future transition into a leadership role. You will be deeply involved in building efficient, scalable, and reliable solutions that power seamless interactions between users and experts.

This is a highly impactful role with direct influence on the quality of our online chat experience, the adoption of modern tools and practices in backend development, and the foundation for a high-performing engineering team.

Your impact:

• Design, build, and scale backend architecture focused on chat-related services;
• Ensure high code quality and maintainability through thorough code reviews and technical guidance;
• Collaborate closely with product managers, QA engineers, data analysts, and DevOps to deliver integrated, cross-functional solutions;
• Make informed technology decisions to optimize system performance and scalability;
• Implement and champion CI/CD best practices to improve development efficiency;
• Participate actively in sprint planning and drive sound, strategic technical decisions.

About you:

• You have 4+ years of backend development experience;
• You are highly skilled in Node.js, PostgreSQL, Redis, and RabbitMQ;
• You excel at collaborating with teams and motivating engineers to deliver their best work;
• You have a proactive, solution-oriented mindset and can navigate ambiguity effectively.

Nice-to-Have: Experience with Grafana, ELK stack, MongoDB, and Go is a plus.

Why OBRIO is the best place to work?

• Unleash Your Ambitions: Our company was built by ambitious people who never settle for less. By joining OBRIO, you'll have the chance to unleash your own ambitions and achieve your career dreams.
• We don't just give you opportunities for growth and development, we give you maximum autonomy and believe we can't do without you and your active thinking.
• Collaborate in a Team Environment: We believe that success is a team effort. When you join OBRIO, you'll have the chance to collaborate with talented individuals who share your passion for achieving outstanding results.
• At OBRIO, we've gathered influential experts, all of whom are open to sharing their knowledge and ready to help solve issues based on their experience. This is the company where you can quickly reach your potential and advance your career.

Our benefits:

• Work from the comfort of your home or from one of our offices in Kyiv or Warsaw. The choice is yours!
• Enjoy 20 annual vacation days and unlimited sick leave, all covered by the company;
• Don't worry about getting the right equipment, we've got you covered if necessary;
• Stay healthy with access to a corporate doctor online, and health insurance options in Ukraine or a fixed amount towards insurance abroad after your probation period;
• Keep learning with our extensive corporate library, internal online meetings, and lectures;
• Grow your skills with our training compensation program;
• Take advantage of our supportive corporate culture, including assistance with relocation, advice on legal stay abroad, housing support, and help for third-country nationals;
• Have fun with our online events and team-building activities

Here's what our hiring journey looks like: Initial Screening Team Interview Skills Assessment Final Check Job Offer.

Let's team up and reach for the stars together!