Backend Engineer (Node.js) at Storyby | Kyiv

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.

SKELAR is a Ukrainian venture builder dedicated to creating international tech enterprises. Together with co-founders, we assemble strong teams to conquer global markets.Storyby is an innovative entertainment tech company that transforms original ideas into captivating stories through novels, vertical films, and immersive audiobooks, engaging over 10 million readers, viewers, and listeners worldwide.Within the Storyby ecosystem, we offer three distinct products:DramaShorts – a vertical film streaming service boasting 1 million monthly fans, featuring original productions in Europe and the USA.AlphaNovel – a platform for novels and immersive audiobooks, housing over 20,000 titles.StorybyWriter – a publishing platform supporting over 25,000 authors; we adapt the strongest stories for DramaShorts.We are committed to supporting the Ukrainian film industry, producing films featuring Ukrainian actors and production teams.We are currently seeking a User Acquisition Manager to join our dynamic team.Key Responsibilities:— Develop, manage, and optimize advertising campaigns on Meta Ads;— Monitor and track key performance indicators, including budget pacing, ARRPU, CAC, ROAS, and ROI;— Drive channel growth, scale efforts significantly, and launch new sources.What Matters to Us:— At least 1 year of experience with Meta Ads;— Data-driven decision-making approach, strong analytical skills, and the ability to interpret large datasets and draw insights;— Experience managing budgets of $100k+/month;— Creativity and the ability to generate high-quality ideas and hypotheses.Preferred Qualifications:— Experience with advertising platforms such as TikTok Ads, AppLovin, Meta Ads, and Mintegral;— Familiarity with AppsFlyer, Adjust, Tableau, and Airtable;— Proficiency in English at a B2 level.SKELAR Foundation is a charitable initiative created by our employees, focused on developing and funding projects that address the impacts of war and aid in Ukraine's recovery.SKELAR is an environment that fosters personal growth for individuals capable of creating successful companies. We refer to these companies as the next big everything, believing in their power and scalability. We aim to continue developing tech businesses, conquering global markets, and working towards Ukraine's victory.

SKELAR is a venture builder dedicated to creating international product IT companies based on the principles of venture investment. We collaborate with co-founders to assemble strong teams, launch product IT businesses, and succeed in global markets.One of our rapidly growing businesses is Storyby - an entertainment tech venture that transforms novels into short series. Storyby is committed to revolutionizing storytelling in the digital age, providing innovative opportunities for collaboration and creative expression.Currently, we have two products:Our app Alphanovel has empowered independent authors to publish their works to a million-strong audience and monetize their creations.Our application Dramashorts has begun to recoup its investments in just days, with over 50 films available, including 8 exclusive features.Storyby - a Ukrainian entertainment tech company, is building the 'Netflix of romantic stories.' We are experiencing rapid growth and are looking for a talented Video Editor to craft captivating trailers and narratives from our films.Key Responsibilities:Editing 6-8 trailers per month, resizing and converting 3-4 films monthly from vertical to horizontal format.Re-editing individual film episodes.Editing marketing videos in an interview style with actors — 1-2 videos per month (15-20 minutes each).Operational tasks: preparing content for upload to the platform and archiving materials.AI dubbing of films, AI video, and sound generation.Required Qualifications:At least 1 year of experience in editing studio video content (Adobe Premiere Pro or Adobe After Effects).Skills in graphics and special effects.A portfolio showcasing your work.Proficiency in English at B1 level or higher (written).Preferred Qualifications:Familiarity with AI tools (Veo3, Kling, Sora+).In addition to our businesses, we are developing our own charitable foundation to support social initiatives.

SKELAR is a leading Ukrainian venture builder dedicated to creating international tech businesses. Alongside our co-founders, we assemble robust teams to triumph in global markets.Currently, SKELAR operates a diverse portfolio of businesses across various niches, from EdTech to marketplaces. Our companies consistently rank among the top startups and product companies in Ukraine, achieving high ratings in the AppStore and developing platforms used by millions. Our achievements have been featured in prominent media outlets, including TechCrunch and Wired.We take pride in our strong team of over 1,300 professionals who possess exceptional expertise and ambitious goals. Our people are our most valuable asset, and we strive to build businesses alongside the best talents in the market.We are currently seeking a Creative Marketing Manager for Storyby.Storyby is an entertainment tech company that transforms original ideas into captivating narratives across novels, vertical films, and immersive audiobooks. Over 10 million people worldwide engage with our content.The Storyby ecosystem includes three main products:DramaShorts - Streaming vertical cinema with 1,000,000 fans monthly (in-house production in Europe and the USA).AlphaNovel - A platform for novels and immersive audiobooks with a library of over 20,000 works.StorybyWriter - A publishing platform for over 25,000 authors, where we adapt the strongest stories into DramaShorts.We are looking for someone who can transform our bestsellers into viral marketing strategies and lead the creative development of AlphaNovel on Meta.Your role will not be based on standard marketing challenges but on a deep understanding of content: you will analyze our top novels as distinct products, developing a unique visual strategy for each that ensures a consistent success rate for creative campaigns.Joining our team now means:Being a strategic owner of the direction: You will have the full autonomy to develop the Meta channel, where your decisions will directly impact business scaling and budgets.Operating at a large scale: You will lead Meta sourcing for a product with over 6 million...

Our Mission and VisionAt Solidgate, our mission is straightforward: to empower exceptional entrepreneurs in building outstanding internet companies. We exist to support the builders — those who are shaping the digital economy — with the robust financial infrastructure they need. Our ambitious goal is to become the leading payments orchestration platform globally.About the Team and RoleWe are in search of a talented Backend Engineer eager to transition to Go and join our team dedicated to creating products that minimize fraud-related risks for our clients. You'll be working on our innovative Representment product, which has the potential to save our merchants significant amounts of money.If you excel in a high-performing team that prioritizes speed, ambition, and ownership, then this is your opportunity. Our culture is rigorous, transparent, and highly collaborative. It may not be for everyone — but if you're ready to elevate your game alongside equally motivated colleagues, this is where you belong.Explore our technology stack here.Your ResponsibilitiesDevelop dispute management systems. Create services that gather dispute data from payment systems and convert it into actionable insights for merchants.Integrate with leading global payment providers. Collaborate with platforms like Stripe, Adyen, and PayPal.Build scalable financial infrastructure. Contribute to systems that facilitate invoicing, billing, reconciliation, and other financial functions.Launch new payment products. Collaborate with partners such as Visa, Mastercard, and AMEX to deliver innovative solutions.Enhance the Representment product. Develop APIs and interfaces that allow merchants to upload dispute evidence and submit it directly to payment schemes.Ideal Candidate ProfileDemonstrates strong ownership and a clear technical perspective (you have mastered one backend language and are ready for a new challenge).Produces production-ready systems, not just individual features.Possesses a solid understanding of high-load system design.Confident in testing (unit tests, integration tests).

TENTENS Tech is a dynamic IT partner of SKELAR, a Ukrainian venture builder focused on creating international tech businesses.We design social discovery platforms catering to over 20 million users globally. Our rapid pace and scale are driven by deep expertise in analytics, high-load systems, and performance marketing.Our team at TENTENS Tech comprises over 250 professionals, where each member acts like a CEO in their role, contributing to our collective success. We operate with a 10/10ths mindset: we stay focused on our goals, ask the right questions along the way, and never settle for 'good enough'—only maximum performance and continuous improvement. If you resonate with this description and are ready to accelerate with us, let's connect!We are currently seeking a Backend Engineer (PHP) to elevate our performance standards together.

Join Skelar, a leading venture builder dedicated to crafting innovative IT products that resonate on a global scale.We are currently seeking a Senior/Lead Backend Engineer to spearhead our martech initiatives within our partner company, Duomo. This platform is designed for personal and spiritual development, rooted in Christian values, providing users with customized plans to address pivotal life questions.At Duomo, we strive to create a global community where millions of Christians, organizations, mentors, and pastors can connect and grow together.Our achievements speak volumes:Users love us: Our average ratings across App Store, Google Play, and Trustpilot stand at an impressive 4.7/5.Rapid growth: Over the past year, our team has expanded fourfold.Trusted by Meta: Our partnership with Meta underscores the quality and trustworthiness of our product.We are evolving rapidly, offering every team member the opportunity to grow both professionally and personally. Our commitment to learning includes mentorship, internal education initiatives, and access to external courses.Additionally, we are integrating AI tools throughout our processes, using MCP server integrations, AI Code Review, and automation to enhance creativity and innovation.

About UsAt Ideals, we are a pioneering global B2B SaaS company, acclaimed as the most highly rated and customer-centric brand in the secure business collaboration arena. With over 2,000,000 users spanning 300,000 companies worldwide, we empower teams to navigate high-stakes processes and make critical decisions with enhanced efficiency, reduced stress, and superior quality.Ideals Virtual Data Room (VDR): A secure platform for document sharing and collaboration, essential for due diligence, fundraising, corporate reporting, licensing, clinical trials, and various intricate transactions.Ideals Board: A collaborative platform designed for board and leadership teams to make decisions more quickly, safely, and in compliance with regulations.The RoleWe are on the lookout for a Senior Backend Engineer (.NET) to join our Orion Team, a vital component of our organization. This team is responsible for the essential file management backbone of the Ideals VDR, which includes:File conversion pipelinesAdvanced watermarking solutionsAI-driven document classification systemsHigh-performance document viewing experiencesTeam Composition: Our team consists of 2 Backend Engineers, 2 Frontend Engineers, 2 QA Engineers, an Engineering Manager, a Tech Lead, an Architect, a Product Manager, a Designer, and a Content Manager.Technology Stack: Our technology stack includes .NET Framework 4.7, .NET 8, ASP.NET Core, Entity Framework, Web API, MS SQL Server / PostgreSQL, AWS, Docker/Kubernetes, ArgoCD, and Git.Your ResponsibilitiesEngage in all phases of the Software Development Life Cycle (SDLC) as part of a cross-functional product team, including but not limited to requirements analysis, design, implementation, testing (unit, integration, and service tests), deployment, and operational management of new product features, as well as addressing change requests, defect resolution, spikes, and proof-of-concept development.Maintain high-quality standards in all deliverables.

SKELAR is a Ukrainian venture builder that constructs international tech businesses. Together with our co-founders, we assemble strong teams to conquer global markets.Storyby is an entertainment tech company that transforms original ideas into stories featured in novels, vertical films, and immersive audiobooks. Over 10 million people worldwide read, watch, and listen to our content.Within the Storyby ecosystem, we have three primary products:DramaShorts — a vertical cinema streaming platform with 1 million fans monthly (produced in Europe and the USA).AlphaNovel — a novel and immersive audiobook platform boasting a library of over 20,000 works.StorybyWriter — a publishing platform for more than 25,000 authors; we adapt the strongest stories for DramaShorts.We are committed to supporting Ukrainian cinema: our films feature Ukrainian actors and are produced locally.Currently, we are seeking a User Acquisition Manager to join our dynamic team.Key Challenges:— Develop, manage, and optimize advertising campaigns across Meta Ads; — Monitor and analyze key performance indicators including budget pacing, ARRPU, CAC, ROAS, and ROI; — Further develop and exponentially scale the channel while launching new sources.What We Value:— At least 1 year of experience with Meta Ads;— Data-driven decision-making approach. Strong analytical skills and the ability to interpret large volumes of information;— Experience managing budgets of $100k+/month;— Creativity and the ability to generate high-quality new ideas and hypotheses.Preferred Qualifications:— Experience with advertising platforms such as TikTok Ads, AppLovin, Meta Ads, Mintegral;— Familiarity with AppsFlyer, Adjust, Tableau, Airtable;— English proficiency at B2 level.SKELAR Foundation is a charitable initiative established by our employees. Through this initiative, we create and finance projects aimed at overcoming the consequences of war and supporting the recovery of Ukraine.SKELAR provides an environment for individuals capable of building successful companies. We refer to such companies as the next big everything. We believe in their power and scalability. We continue to develop tech businesses, conquer global markets, and strive for Ukraine's victory

TENTENS Tech is a partner IT company of SKELAR, a Ukrainian venture builder focused on creating international tech businesses.We develop social discovery platforms for over 20 million users worldwide, driven by deep expertise in analytics, high-load systems, and performance marketing.Our team at TENTENS Tech consists of over 250 professionals, each acting as a CEO in their role and contributing to collective success. We adhere to the 10/10ths philosophy: we stay focused on our goals, ask the right questions along the way, and never settle for "good"—we strive for excellence and beyond. If you resonate with this description and are ready to accelerate with us, let's connect!We are currently seeking a Backend Engineer (PHP/Go) to help elevate our performance standards.

SKELAR is a pioneering venture builder committed to creating international product-based IT companies in line with the principles of venture capital. We partner with co-founders to assemble robust teams that launch innovative IT businesses and succeed in global markets.Among our thriving ventures is Storyby, an entertainment technology company transforming novels into captivating short series. Storyby is dedicated to revolutionizing storytelling in the digital age, providing new avenues for collaboration and creative expression.We currently operate two major products:The Alphanovel app empowers independent authors to publish their works to a million-strong audience, enabling them to earn revenue.The Dramashorts app has seen rapid engagement, featuring over 50 films, including 8 exclusive titles.We proudly support the Ukrainian film industry, with all our films produced with Ukrainian actors and production teams. This focus has driven our significant growth, tripling in size within the last six months.We are currently seeking a Creative Marketing Manager to join our marketing team of 25, responsible for creating standout trailers and narratives from our films.Key Challenges:Developing captivating creative concepts that resonate with millions.Analyzing the fast-paced and dynamic market of romantic novels.Identifying emotional hooks that engage a broad audience.Responsibilities Include:Generating ideas for advertising campaigns to attract new users through performance channels.Collaborating with designers, marketers, and product teams to swiftly and effectively launch new concepts.Preparing briefs for designers.Staying updated with industry news and trends to craft modern, relevant creatives that capture attention.Analyzing audience behavior to create more targeted and compelling creatives.Facilitating brainstorming sessions, actively participating in team discussions and idea generation.Evaluating the effectiveness of creative outputs and suggesting improvements or redesigns.

TENTENS Tech is looking for a Backend Team Lead to support its MarTech initiatives in Kyiv. This leadership position centers on guiding backend development and helping the team achieve higher performance. What you will do Lead and mentor backend engineers working on MarTech projects Guide technical decisions and support the team’s growth Promote high standards and help the team reach new levels of performance About TENTENS Tech TENTENS Tech partners with SKELAR, a Ukrainian venture builder focused on building international tech businesses. The company’s main products are social discovery platforms used by more than 20 million people worldwide. The team includes over 250 members who are encouraged to take ownership and show initiative. TENTENS Tech values focus, thoughtful questions, and a drive to exceed expectations. Ambition and a commitment to excellence are at the core of the company culture.

SKELAR is a Ukrainian venture builder dedicated to creating international tech businesses. Together with our co-founders, we assemble strong teams to compete successfully in global markets.Storyby is an entertainment tech company that transforms original ideas into stories through novels, vertical films, and immersive audiobooks. Over 10 million people globally read, watch, and listen to our content.Within the Storyby ecosystem, we offer three products:DramaShorts — a streaming platform for vertical cinema with 1 million fans monthly (produced in Europe and the USA).AlphaNovel — a platform for novels and immersive audiobooks featuring a library of over 20,000 works.StorybyWriter — a publishing platform for over 25,000 authors; we adapt the strongest stories for DramaShorts.We proudly support Ukrainian cinema: our films feature Ukrainian actors and production.Currently, we are seeking a Paid Ads Specialist (Meta) to join our dynamic team.Key Responsibilities:— Develop, manage, and optimize advertising campaigns on Meta Ads; — Monitor and track key performance indicators, including budget pacing, ARRPU, CAC, ROAS, and ROI; — Enhance and scale the channel while launching new sources.Essential Qualifications:— Minimum of 1 year of experience with Meta Ads;— Data-driven decision-making approach with strong analytical skills to analyze large datasets and derive actionable insights;— Experience managing budgets of $100k+/month;— Creativity and a knack for generating high-quality ideas and hypotheses.Preferred Qualifications:— Experience with advertising platforms such as TikTok Ads, AppLovin, Meta Ads, Mintegral;— Familiarity with AppsFlyer, Adjust, Tableau, Airtable;— Proficiency in English at a B2 level.SKELAR Foundation is a charitable organization founded by employees of the company. Through this initiative, we create and fund projects that help address the consequences of war and support the recovery of Ukraine.SKELAR is an environment for self-realization for people capable of building successful companies. We invite you to be part of this journey.

Join our dynamic team in Kyiv as a Lead Backend Developer, working full-time in our office. We offer a convenient shuttle service from the nearest metro station.About the RoleAs the Lead Backend Developer, you will play a pivotal role in our innovative ground control station team, enhancing the functionality and user experience of our VTOL systems. You will be at the forefront of drone technology, collaborating closely with stakeholders from the Flight Control, AI, and System Test departments to expand and improve our ground control software.Your contributions will support Quantum Systems' mission to revolutionize decision-making through aerial data intelligence.Your Daily Responsibilities:Design and implement new features for our cutting-edge ground control station software.Maintain and enhance existing ground control station software.Optimize user interface and user experience tailored for drone applications.Oversee testing procedures and conduct flight tests.

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 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.

Role overview Wix Payments seeks a Backend Engineer based in Kyiv to strengthen the systems behind payment processing for Wix users. The focus is on backend development, supporting smooth and reliable transactions across the platform. What you will do Design, build, and maintain backend features for the Wix Payments platform Collaborate with colleagues from other teams to deliver dependable payment services Help improve the stability and efficiency of transaction processing Impact This role directly supports secure and seamless payment flows for Wix users. Enhancements made here will influence the reliability and performance of payment operations throughout the platform.

TENTENS Tech, a partner IT company of SKELAR, is at the forefront of building international tech businesses from Ukraine.We create innovative social discovery platforms that serve over 20 million users globally. Our impressive pace and scale are fueled by deep expertise in analytics, high-load systems, and performance marketing.Our team at TENTENS Tech consists of over 250 professionals, each acting as a CEO in their role and contributing to our collective success. We operate with a 10/10ths mentality: we keep our sights on our goals, ask the right questions along the way, and never settle for 'good enough' — we strive for excellence and beyond. If you resonate with this mindset and are ready to accelerate with us, we want to meet you!We are currently seeking a Backend Team Lead to help elevate our standards of excellence.

TENTENS Tech is a strategic partner of SKELAR, a Ukrainian venture builder dedicated to developing international tech businesses.We create social discovery platforms for over 20 million users globally. Our pace and scale are supported by deep expertise in analytics, high-load systems, and performance marketing.Today, the TENTENS Tech team consists of more than 250 professionals, each acting like a CEO in their role and contributing to our collective success. We operate with a 10/10ths mindset: aiming for excellence, asking the right questions along the way, and never settling for 'good enough'—we strive for maximum impact and beyond. If this resonates with you and you’re ready to accelerate with us—let’s connect!We are currently seeking a Backend Team Lead to help elevate our results.

Role Overview SKELAR is hiring an Engineering Manager in Kyiv. This role leads a team of engineers, guiding projects from planning through delivery. The manager sets direction for engineering efforts, supports team growth, and encourages strong collaboration across disciplines. What You Will Do Oversee engineering projects, ensuring timely and high-quality delivery Mentor and develop engineers, helping them grow their skills Promote best practices in engineering and team communication Foster a culture of creativity and shared problem-solving Location This position is based in Kyiv.