Senior/Lead Backend Engineer (Node.js) at Skelar | Kyiv

We invite you to join our dynamic team at Zeely AI as a Senior Node.js Developer. As part of our innovative team, you will contribute to developing cutting-edge products characterized by clean, efficient code, and audacious solutions. Your expertise will directly impact our stakeholders, influencing pivotal decisions and propelling product growth.Zeely AI ha…

United Tech is an innovative global IT product company dedicated to transforming the landscape of real-time social connectivity. With a user base spanning North America, Europe, LATAM, and MENA, we specialize in developing next-generation mobile and web applications focused on live streaming and social networking. Our platforms facilitate large-scale, interactive, and engaging connections, positioning us at the forefront of a market projected to surpass $206 billion by 2030. Established in Ukraine, we are rapidly expanding our global footprint.About the Role: We invite you to be a part of our dynamic team as we build a state-of-the-art global video chat platform. You will have the unique opportunity to contribute to the initial stages of product development, shaping its architecture and backend without the constraints of legacy systems. This role allows you to make impactful decisions, engage with cutting-edge technologies, and develop a scalable cross-platform solution for both web and mobile applications.

About UsFlosum is a thriving, self-sustained B2B SaaS innovator renowned for delivering a top-tier Salesforce-native DevSecOps, Data Protection, and Security platform. Our solutions are a trusted choice for Fortune 500 companies operating in some of the world's most regulated sectors, including financial services, healthcare, government, and insurance.Unlike typical startups that prioritize rapid scaling and superficial metrics, we have achieved profitability through our own strategic efforts. As a Salesforce Summit Partner and recipient of an Innovation Award, we proudly stand alongside major players in the enterprise software sector.Our platform is exclusively built on Salesforce, catering to enterprises that demand uncompromising standards in security, compliance, and reliability.Purpose of This RoleAs we embark on an ambitious growth trajectory, enhancing our product offerings, expanding our platform capabilities, and boosting our delivery speed, we seek seasoned Node.js developers who can take ownership of substantial aspects of our architecture and deliver production-quality code relied upon by our enterprise clients daily.This position is not merely a staff augmentation role. You will collaborate closely with engineering leadership, product managers, and our CEO. Your decisions will carry significant weight, your insights will be valued, and the quality of your work will be visible to the customers who depend on our platform.Your ContributionsDevelop high-performance back-end services and APIs that drive enterprise-grade SaaS applicationsDesign scalable, secure Node.js microservices and integrations within the Salesforce ecosystemCreate modern front-end solutions using Vue.js and TypeScript for demanding enterprise usersBuild CI/CD pipeline tools, automation frameworks, and infrastructure to enhance developer productivityImplement real-time data processing and event-driven architectures to manage sensitive enterprise data at scale

SKELAR is a venture builder dedicated to creating international product-oriented IT companies following the principles of the venture capital world. Together with co-founders, we assemble strong teams to launch product-focused IT businesses and excel in global markets.Currently, we are in search of a Senior Backend Engineer for our partner company.This platform focuses on personal and spiritual growth, built on Christian values. We assist individuals in finding answers to life’s most significant questions: from a deeper understanding of faith to enhancing relationships through personalized plans. Our users have access to lessons, interactive quizzes, and video materials, creating a holistic learning experience.Our strategy is to become a global platform where tens of millions of Christians, hundreds of organizations, and thousands of mentors and pastors can interact.Key Achievements We Are Proud Of:Users love us: our average rating on App Store, Google Play, and Trustpilot is 4.7/5.We are rapidly growing: our team has increased fourfold in the last year.We are a partner of Meta, confirming the high level of our product and the trust of technological leaders.We are evolving at an incredible pace, providing every team member the opportunity to grow rapidly alongside the company—both professionally and personally. The company supports learning through mentoring, internal educational initiatives, and access to external courses.It is worth noting that we extensively integrate AI tools into all processes. We are already utilizing integrations with MCP servers in daily tools, AI Code Review, and automation of key routine tasks. This allows us to focus on creativity and innovation instead of routine tasks.

Join our dynamic team at Sigma Software Group as a Senior TypeScript/Node.js Developer, where you'll play a pivotal role in the development of an innovative advertising platform tailored for the Swedish market. You'll work with cutting-edge technologies to build scalable, high-performance applications while collaborating with a talented team of professionals. Your expertise will help shape the future of digital advertising.

Innovecs provides digital services to clients across the US, UK, EU, Israel, Australia, and Ukraine. The company develops software for industries including supply chain, healthtech, collaboration technology, and gaming. Solutions are designed to meet each client’s changing business requirements. Innovecs has earned recognition for its growth and workplace culture. The company appeared on the Inc. 5000 list of fastest-growing private US companies for five consecutive years and is ranked among the top global outsourcing providers by IAOP. Additional honors include the Global Good Awards for Employee Engagement & Wellbeing, a gold award at the Employer Brand Management Awards, and a place in the Global Top 100 Inspiring Workplaces Ranking.

Join TechBiz Global, a leader in recruitment services, as we partner with top-tier clients to deliver exceptional talent solutions. We are on the lookout for a dynamic Full Stack Developer proficient in Node.js and React to enhance one of our client’s innovative teams. If you are eager to advance your career in a cutting-edge environment, this role is tailored for you.Key Responsibilities:Design and develop our company website from scratch utilizing React and Node.js.Create responsive, user-centric interfaces that effectively represent our brand and services.Implement backend API services and database structures using Node.js.Ensure high standards of code quality, performance optimization, and cross-browser compatibility.Work closely with design and business stakeholders to translate their requirements into robust technical solutions.Deploy and manage website infrastructure in cloud environments.Integrate analytics, SEO best practices, and performance monitoring into the website.

About Softermii:Softermii is a leading outsourcing and outstaffing company with over 11 years of expertise in developing web and mobile applications. With a diverse team of over 120 professionals across six countries, we have successfully navigated challenges like the COVID-19 pandemic and ongoing conflicts, ensuring the sustainability of our projects and the security of our workforce. Our commitment to growth remains steadfast.We are continuously expanding our portfolio with innovative projects in sectors including:HealthcareReal EstateLivestream E-commerceFintech (Wealth Tech, Capital Trading)Real-Time Communications (RTC)Moreover, we are proud to develop two proprietary solutions that enhance our customers' experience with faster applications for video or audio calls and a real estate application featuring 3D visualization.Company Mission:At Softermii, we believe in transforming ideas into valuable products without limitations.Our Vision:We are dedicated to delivering solutions that not only meet our clients' needs but also empower them to excel in their industries.

Oversee comprehensive software development processes including architecture, design, coding, building, deployment, monitoring, and operations.Contribute to a global, distributed product vertical leveraging Node.js technology.Develop microservices and craft robust APIs.Own the continuous delivery pipeline, ensuring seamless services for millions of users worldwide.Address and resolve challenges related to system scaling and integration with third-party services.

Oversee the complete software development lifecycle: from architecture and design to development, deployment, monitoring, and operational support.Contribute to a distributed product line utilizing Node.js technology.Design and implement microservices, as well as develop efficient APIs.Assume responsibility for continuous delivery, catering to millions of users globally.Address challenges related to system scalability and integration with external third-party services.

Join our dynamic team at supportyourapp as a Middle Full-Stack Web Engineer specializing in Node.js and Vue.js. We are looking for a passionate individual who is fluent in Ukrainian and is excited about building innovative web applications. In this fully remote position, you will collaborate with a talented team to deliver high-quality software solutions.

Our Mission and VisionAt Solidgate, we are dedicated to empowering exceptional entrepreneurs to create outstanding internet companies. Our goal is to support the builders of the digital economy with the financial infrastructure they truly deserve. We are on an ambitious journey to become the world's leading payments orchestration platform.About the Team and RoleAs a Node.js Engineer on the Launch Team, you will be instrumental in powering the backend for Digital Onboarding. Your primary mission will be to ensure that Solidgate collaborates with compliant merchants while delivering a fast, seamless, and scalable onboarding experience.Your challenge will be to construct the quickest path from “I’m interested” to “I’m live.”What Makes This Role UniqueYou will significantly decrease Time-to-Live, positively influencing growth.You will help define the evolving Node.js stack (free from legacy constraints).You will design robust, durable, and scalable systems that target an impressive 99.99% uptime.You’ll harness AI to expedite shipping and integrate AI-driven features into our products.Technology StackOur Launch Team is at the forefront of Solidgate's Node.js stack development. We not only implement tools but also establish the standards, practices, and engineering culture that other teams aspire to follow. Currently, we utilize:Fastify - a lightweight, high-performance web servergRPC + Protobuf - for typed service-to-service communicationPostgreSQL + Drizzle ORM - a reliable data layer with a modern query builderKafka (@platformatic/kafka) - for streaming-first, event-driven architectureVitest - for unit and functional testingWe also implement custom solutions, including distributed locks, metrics, streamers, and more. Discover our complete technology stack here.The tech stack is continuously evolving, providing real influence without any legacy baggage, just modern Node.js supported by mature architectural principles inspired by the Golang ecosystem.Your ResponsibilitiesDevelop and maintain backend services for a seamless onboarding process.Collaborate with cross-functional teams to ensure high-quality deliverables.Optimize application performance and reliability.Leverage modern development practices and tools to enhance efficiency.

SKELAR is a dynamic venture builder dedicated to creating international product IT companies guided by the principles of venture investing. Together with co-founders, we assemble strong teams to launch product-focused IT businesses and excel in global markets.We are currently seeking a Junior/Middle Backend Engineer to join our partner company.This platform is designed for personal and spiritual development, based on Christian values. We assist individuals in finding answers to life's most significant questions, from deepening their faith to enhancing relationships with loved ones through personalized plans. Our users gain access to lessons, interactive quizzes, and video materials that create a comprehensive learning experience.Our strategy is to become a global platform where tens of millions of Christians, hundreds of organizations, and thousands of mentors and pastors can interact.Key Achievements We Are Proud Of:Users love us: average ratings in the App Store, Google Play, and Trustpilot are 4.7/5.We are growing rapidly: our team has quadrupled in the past year.We partner with Meta, which affirms the high quality of our product and the trust of technology leaders.We are evolving at an incredible pace, and every team member has the opportunity to grow rapidly alongside the company, both professionally and personally. The company supports learning through mentoring, internal educational initiatives, and access to external courses.Notably, we extensively integrate AI tools into all processes. We already utilize integrations with MCP servers in everyday tools, AI Code Review, and automation of key routine tasks. This allows us to focus on creativity and innovation rather than routine.

SKELAR is a prominent Ukrainian venture builder dedicated to developing international tech businesses. Together with our co-founders, we assemble strong teams poised to achieve success in global markets.Currently, SKELAR manages numerous businesses across various niches, from EdTech to marketplaces. Our companies consistently rank among Ukraine's top startups and product companies, achieving high positions in the App Store and developing platforms used by millions worldwide. Major media outlets, including TechCrunch and Wired, feature SKELAR's businesses.We take pride in our robust team of over 1,000 specialists, each bringing exceptional expertise and ambitious goals. Our people are our most valuable asset, and we aim to build businesses with the best talent available.Storyby is an entertainment tech company that transforms original ideas into captivating stories told through novels, vertical films, and immersive audiobooks. Over 10 million people globally engage with our content.In the Storyby ecosystem, we offer three key products:AlphaNovel – a platform for novels and immersive audiobooks featuring over 20,000 works.StorybyWriter – a publishing platform for more than 25,000 authors, bringing the strongest stories to life for DramaShorts.DramaShorts – a streaming service for vertical cinema with 1 million fans monthly, featuring in-house productions across Europe and the USA.We are currently expanding our team and looking for a Backend Engineer who will be a vital part of our team, helping the business grow and reach new heights.Your responsibilities will include:— Implementing and maintaining API endpoints for web and mobile: HTTP Cloud Functions, validation, OpenAPI/Swagger.— Optimizing performance: profiling, caching, and ensuring correct indexing for swift operation.— Ensuring quality and reliability: unit and integration testing (Jest), logging, tracing, alerts.— Conducting code reviews and upholding engineering standards in a monorepo (Nx, esbuild, CI).— Engaging in foundational infrastructure work using Terraform and participating in incident analysis.What we value:— You possess 3+ years of backend development experience with Node.js and TypeScript/JavaScript.— You have a strong understanding of SQL beyond basic SELECT queries, including indexing, profiling, and optimization.

Risora, part of skelar, is seeking a Full-Stack Engineer with strong experience in Node.js and TypeScript. This role is based in Kyiv and centers on building and maintaining web applications and services. Role overview This position involves working on both the backend and frontend, using Node.js and TypeScript as the primary technologies. Collaboration is a key part of the job, with a focus on delivering features that improve the user experience. What you will do Develop and support web applications and related services using Node.js and TypeScript Work closely with team members to deliver new features Share ideas and contribute to collaborative problem-solving Requirements Hands-on experience with Node.js and TypeScript in a full-stack setting Interest in creating user-focused web applications Enjoys teamwork and knowledge sharing

Join our dynamic team at supportyourapp, a leading Ukrainian IT company, dedicated to crafting innovative desktop applications for macOS and iOS. With 15 outstanding products under our belt, we specialize in enhancing user experiences through file sharing, music and video conversion, copyright-free image downloads, and optimizing computer performance by freeing up RAM.As a Full-Stack Web Engineer, you will play a pivotal role in managing our company’s website, driving the development of new features around trials, checkout processes, and product launches. You will work closely with our product and marketing teams to ensure swift delivery of enhancements while maintaining the integrity of our existing architecture.Technical Stack:Frontend: SvelteKit, Vue.js, TailwindCSSBackend: Node.js, Go, PHPInfrastructure: Docker, S3, Cloudflare

Role overview Vacancies seeks a Senior Frontend Developer in Kyiv to help grow our product team. This position focuses on expanding development capacity and improving the quality and scalability of our frontend architecture. The team values developers who bring strong Vue experience, care about clean code, and approach design thoughtfully. What you will do Work closely with the team to deliver new product features Refactor and improve existing frontend codebases Boost product performance and scalability Share ideas to enhance both code and workflow Own tasks and ensure they are completed Who thrives here Developers with deep Vue expertise People who show initiative and ownership Those who care about clean, maintainable architecture Individuals able to work independently and move projects forward without sacrificing quality The product Since 2020, the team has built a global platform connecting people across backgrounds, religions, and cultures. Over 1 million visitors use the site each month, with users from the USA, Australia, and other countries. The platform ranks among the top 5 in its category, recognized for high-quality video and a seamless experience even during peak traffic, maintaining 99.99% uptime. The product is ad-free, focusing on genuine connections supported by advanced UX/UI. Features include AI-powered content moderation, strong data protection, and tools for building authentic global relationships. The next milestone: reaching the top 3 among international web-based social networking services.

Join our dynamic team as a Senior Java Developer where your expertise will drive innovative solutions and enhance our software capabilities. In this role, you will be responsible for designing, developing, and maintaining robust Java applications. You will collaborate with cross-functional teams to deliver high-quality software that meets both functional and non-functional requirements.

Join us as a Senior Python Developer where you will play a pivotal role in enhancing our software solutions. You will collaborate with cross-functional teams to design, develop, and maintain high-quality applications. Your expertise in Python and deep understanding of software development principles will be essential in driving innovation within our projects.