Integration Engineer specializing in JavaScript SDK & APIs

Join our dynamic team at ruby-labs as a Senior Recruiter, where you will play a pivotal role in shaping our workforce. As a Senior Recruiter, you will be responsible for sourcing, attracting, and hiring top talent across various disciplines. Your expertise will help drive our company's growth and success by identifying candidates who align with our values an…

About UsAt Ruby Labs, we pride ourselves on being a pioneering technology firm dedicated to developing and managing cutting-edge consumer products. Our expertise spans various sectors, including health, education, and entertainment. Our innovative teams are at the forefront of creating consumer-centric solutions, and we are continually seeking passionate professionals to join our journey. Discover more about our vision and mission on our About Us page.About the RoleWe are on the lookout for a skilled Senior Data Analyst to become a vital part of our fast-expanding team, specifically for our new job application platform designed to simplify the job search experience for professionals.In this role, you will be responsible for gathering, categorizing, and analyzing data to produce actionable reports that facilitate informed decision-making across the organization. Your ability to uncover insights, pinpoint growth opportunities, establish critical benchmarks, and ensure that we deliver a product that meets our customers' needs will be paramount.You will take full charge of data pipelines, analytics, and insights, ensuring that all decisions are supported by accurate data. You will thrive in a professional, dynamic environment where precision is critical, consistently validating that our data is both meaningful and actionable.Why Join Us?Work on an exceptional product: Our platform is innovative, rapidly growing, and changing how individuals transition between professional roles.Make a tangible impact: Your insights will drive product decisions, influence the development roadmap, and enhance user experiences.Confront meaningful challenges: From analyzing user intent across millions of interactions to optimizing conversion funnels, you will tackle complex and engaging problems daily.Grow with us: This is an ambitious journey filled with potential, ideal for someone eager to develop alongside a cutting-edge product and market.Key ResponsibilitiesCollaborate with Product Owners and Data Teams to align on objectives.Develop new dashboards and enhance existing reports, including Product Reports.Conduct user behavior and “aha moment” analyses.Analyze data to generate actionable insights, identify trends and patterns, and provide recommendations to maximize KPIs.

ruby-labs is hiring a Junior Next.js Developer to join its team in Ukraine. This position is designed for someone early in their web development journey who wants to build practical experience on active Next.js projects. Curiosity and a drive to learn are highly valued here. Role overview In this role, you will join experienced developers working on web applications using Next.js. The team encourages sharing ideas and collaborating closely, so expect to contribute both code and input as you grow your skills. Real product development will be part of your day-to-day work, offering plenty of opportunities to learn by doing. What you will do Work with senior developers on projects built with Next.js Share ideas and contribute code in a team environment Develop your abilities while supporting ongoing product work Requirements Interest in web development and modern JavaScript frameworks Some experience with Next.js or a strong motivation to learn it Located in Ukraine Comfortable working in a team and open to feedback

About UsAt Ruby Labs, we are a pioneering technology firm dedicated to the creation and management of groundbreaking consumer products. Our diverse portfolio spans the health, education, and entertainment sectors. We pride ourselves on our innovative teams who are shaping the future of consumer-driven products. Join us in our mission and discover more about our journey at https://rubylabs.com/about-us/.Role OverviewWe are seeking a proactive QA Engineer with a strong focus on manual testing and API validation to ensure the stability of our payments platform amidst frequent releases and urgent hotfixes. Our team operates in a Kanban environment, allowing for flexibility and continuous delivery. You will be responsible for clarifying project scope, creating efficient test coverage, and ensuring rapid delivery without compromising essential payment routes.Your key responsibilities will include risk-based testing of payment flows, end-to-end API validation (including webhooks), and maintaining effective regression and smoke checklists that balance speed with reliability.

ruby-labs is looking for a Junior Motion Designer in Ukraine to help bring creative projects to life through animation and video. This position focuses on producing engaging motion graphics and video content that support a range of digital initiatives. What you will do Create animations and motion graphics for digital platforms Develop video content that matches project objectives Collaborate with team members to deliver polished visual assets Offer new ideas and creative approaches to design challenges Requirements Creative mindset with a strong interest in motion design Openness to learning and building new skills Comfort working with feedback and collaborating with others Located in Ukraine

Join our dynamic team at ruby-labs as a Middle Full-Stack Developer. We are looking for a talented individual who is passionate about technology and eager to contribute to innovative projects. You will work with a team of skilled developers to deliver high-quality applications that meet the needs of our clients.Your responsibilities will include developing and maintaining web applications, collaborating with designers and other developers, and ensuring the performance and scalability of applications. If you thrive in a fast-paced environment and enjoy tackling challenging problems, this is the opportunity for you!

About UsAt Ruby Labs, we pride ourselves on being a pioneering tech firm dedicated to the development and management of cutting-edge consumer products. Our team is passionate about creating impactful solutions in the health, education, and entertainment sectors, and we are continually seeking enthusiastic individuals to become part of our innovative journey. Discover more about our mission and vision at: https://rubylabs.com/about-us/About the RoleWe are on the lookout for a CRO Manager to enhance the optimization of our reverse lookup products. This position is perfect for an individual equipped with a strong background in conversion rate optimization who is eager to expand their expertise while collaborating with seasoned growth leaders.The ideal candidate will possess an AI-driven mindset, adept at integrating structured experimentation, product analytics, and contemporary AI tools to elevate performance across our user funnels, thereby contributing to sustainable product growth.You will uncover optimization opportunities, design and execute experiments, and utilize AI-driven insights to refine user experiences, boost conversion rates, and bolster overall product performance.Partnering closely with the Senior Growth Manager, you will oversee all phases of the CRO process—from research and hypothesis formulation to testing, analysis, and rollout—emphasizing quality execution, organization, and continuous learning.This role demands a proactive approach; you will actively engage in experiments, ensure their precise implementation, and translate insights into tangible improvements.

About UsAt Ruby Labs, we are a premier technology organization dedicated to developing and managing cutting-edge consumer products. Our company thrives on innovation and offers a wide array of opportunities across the health, education, and entertainment sectors. Our dynamic teams are at the forefront of creating consumer-centric solutions, and we are continually seeking enthusiastic individuals to join our mission. Discover more about our journey at: https://rubylabs.com/about-us/About the RoleWe are in search of a seasoned Senior Data Analyst or Lead Data Analyst with extensive expertise in subscription billing analytics and robust technical proficiency in ClickHouse (with a preference for Tinybird experience). In this role, you will take ownership of analytics related to billing and payments: constructing and refining datasets and queries, defining key billing metrics, and producing dashboards that our product, finance, and operations teams depend on daily.Key ResponsibilitiesDevelop and sustain data pipelines using Tinybird and ClickHouse to enhance dashboards and enable self-service analytics.Enhance ClickHouse queries to ensure optimal performance and accuracy.Create and uphold primary billing metrics including gross/net revenue, refunds, chargeback rates, dispute rates, approval rates, churn, LTV, MRR/ARR, and cohort retention.Design and refine dashboards and visualizations for internal stakeholders including Billing, Finance, Product, Support, and Risk teams.Analyze anomalies and data-quality issues (such as spikes in refunds, increasing dispute rates, or drops in approval rates), conducting root-cause analysis and recommending corrective actions.Collaborate with engineering teams on data instrumentation and event tracking to ensure the integrity of billing data.Document logical processes (including metric definitions, table structures, and pipeline operations) and implement quality assurance measures (tests/monitoring).QualificationsMandatory strong experience in subscription billing, encompassing payments, renewals, refunds, and disputes/chargebacks.Advanced knowledge of SQL, including complex joins, window functions, incremental logic, and performance-oriented query writing.Hands-on experience with ClickHouse, focusing on query optimization and data modeling for analytics tasks.Experience in building fundamental ETL/ELT pipelines (scheduling, incremental loads, validation, monitoring).Familiarity with Git workflows (pull requests, code reviews, version control of SQL/data logic).

We are seeking a passionate and experienced Senior Next.js Full Stack Engineer to join our dynamic team at ruby-labs. In this pivotal role, you will be responsible for developing and maintaining high-quality web applications using Next.js and other modern technologies. Your expertise will contribute to creating exceptional user experiences and driving the success of our projects.As a Senior Engineer, you will collaborate closely with cross-functional teams, mentor junior developers, and ensure best practices are followed in coding and software development processes.

About UsAt Ruby Labs, we are at the forefront of technology innovation, crafting and managing cutting-edge consumer products. Our diverse portfolio spans the health, education, and entertainment sectors, fostering an environment where creativity and passion thrive. Join us in shaping the future of consumer-driven products. Discover our journey here.About the RoleWe seek a talented Senior Product UI/UX Designer (Engineer) who will take the helm in ensuring the highest standards of UI/UX quality across our entire product range. This pivotal role demands an exceptional professional who will serve as the authoritative figure on UI/UX, guaranteeing that all interfaces, flows, and interactions are not only clear and modern but also intuitive and compliant with leading UX principles.Your expertise will be critical, as all UI/UX modifications will require your review and approval prior to deployment. You will be fully responsible for the user experience delivered to our audience.In this position, you will create UX directly in code. Rather than generating static mockups, you will construct and showcase design solutions using Tailwind and existing UI components. Collaborate closely with Product, CRO, and Engineering teams to transform concepts into production-ready UX solutions.

Join Our Team at Ruby LabsAt Ruby Labs, we are at the forefront of technology, dedicated to designing and managing groundbreaking consumer products in health, education, and entertainment. We pride ourselves on fostering a diverse and innovative environment where passionate professionals can thrive. Discover more about our vision and journey at https://rubylabs.com/about-us/.Role OverviewWe are seeking a Senior User Acquisition Manager to spearhead the execution quality, operational frameworks, and performance metrics within our User Acquisition Department. This hands-on leadership position will report directly to the Head of User Acquisition. You will oversee a team of 3-6 User Acquisition Managers of varying experience levels, holding full accountability for the team’s KPIs, execution precision, ROI, and overall results.Your expertise in creating robust operational processes and maintaining high standards of execution quality will be crucial. This role demands not just theoretical knowledge but a deep, hands-on approach to leadership.The position is high-impact and comes with significant responsibility, where efficiency, results, and ROI will define your success.Key ResponsibilitiesTeam Leadership & Development: Inspire, mentor, and develop a team of User Acquisition Managers, fostering continuous improvement in knowledge, execution quality, and overall performance.Hands-On Performance Management: Engage actively in daily operations; be prepared to dive into ad accounts to troubleshoot, optimize performance, launch campaigns, and exemplify best practices.Budget Management: Oversee a substantial advertising budget exceeding $1M monthly across all networks, ensuring disciplined expenditure, controlled scaling, and performance stability.Core Channel Expertise: Exhibit exceptional proficiency in Facebook Ads, taking primary responsibility for driving user acquisition through this channel.Analytics and Data-Driven Insights: Collaborate with the Analytics team to leverage performance data, identifying insights and growth opportunities while addressing inefficiencies.

About KPMGKPMG is a prestigious global network of independent firms specializing in audit, tax, and advisory services. Recognized as one of the top 50 employers by Forbes (2023 - 2024), KPMG Ukraine also ranks in the top 5 for young professionals in the audit and consulting industry, as reported by the UGEN branding agency (2023 - 2025). In March 2025, KPMG Ukraine proudly aligned with the Veterans-Friendly Business Principles, demonstrating our commitment to supporting veterans.Why Join Our Team?Engaging practices tailored for individuals who value meaningful work;Access to a variety of internal and external training programs for professional growth;Comprehensive health insurance, including expanded options for veterans;Psychological support services, offering 20 prepaid sessions for KPMG employees and additional support for veterans and mobilized individuals;Five extra paid health care days;A generous vacation policy of 29 calendar days;Participation in well-being webinars;Flexibility to work in a hybrid format, with options for remote work or in our modern office in the city center;Official salary with tax deductions.Your Role:Manage the recruitment process to ensure timely and cost-effective hiring of experienced professionals;Conduct direct searches, pre-screen CVs, and perform reference checks;Assess and select candidates while coordinating interviews with hiring managers;Extend job offers to successful candidates and manage the hiring process;Facilitate welcome training sessions for new employees.Your Qualifications:A minimum of 3 years of recruitment experience;Exceptional communication, interpersonal, and conflict resolution abilities;Strong analytical skills with a goal-oriented mindset;Able to work independently as well as collaboratively within a team.KPMG Ukraine is dedicated to fostering a work environment that encourages career development for all. We uphold a zero-tolerance policy towards discrimination based on age, gender, sexual orientation, or disability. We believe that diverse perspectives lead to innovative solutions, and we are excited to welcome individuals from various backgrounds.Join us at KPMG Ukraine to showcase your unique talents and realize your potential!

About UsRuby Labs stands at the forefront of technology, pioneering and managing cutting-edge consumer products. Our company thrives in various sectors, including health, education, and entertainment. Our dynamic teams are reshaping the landscape of consumer-driven innovations, and we are constantly in search of dedicated individuals eager to make an impact. Discover more about our journey at: https://rubylabs.com/about-us/About the RoleWe are on the lookout for a visionary Head of Product & Growth who will take full ownership of our subscription product's Average Revenue Per User (ARPU), aiming for a remarkable 15% increase each quarter. Your role will extend beyond just driving revenue; you'll be instrumental in optimizing team efficiency, rolling out valuable features, and spearheading product innovations swiftly.Your leadership scope will encompass all operations outside of Marketing, granting you the freedom to refine processes and take comprehensive responsibility for team dynamics. At Ruby Labs, outstanding contributions are not only acknowledged but also generously rewarded—making this an exceptional opportunity for those eager for significant financial rewards tied directly to impactful results.Key ResponsibilitiesLead ARPU growth initiatives targeting a minimum 15% increase each quarter, overseeing all operational components outside of Marketing.Craft the long-term vision and strategy for the product, utilizing market insights, user analytics, and industry best practices to sustain ARPU growth.Prioritize and execute the product roadmap and backlog with a singular focus on revenue amplification, feature deployment, and market readiness.Inspire and manage cross-functional teams to ensure the effective delivery of features, enhancements, and strategic initiatives that maximize monetization efforts.Steer the comprehensive launch process for new features and product upgrades, ensuring swift execution and measurable ARPU enhancements.Develop and refine processes for product development and team operations to optimize efficiency, quality, and speed.Make informed, data-driven resource allocation decisions to prioritize high-revenue potential projects and features.Ensure alignment between product decisions, ARPU targets, and overall business objectives, maintaining transparent communication across the organization.Cultivate a performance-oriented team culture that champions accountability, rapid iteration, and continuous improvement.

Join Our Team as a Project OwnerAt Ruby Labs, we are at the forefront of technology, creating and managing cutting-edge consumer products across various sectors including health, education, and entertainment. We pride ourselves on our innovative teams that are shaping the future of consumer-driven solutions. We are always on the lookout for talented individuals who are passionate about making a difference. Discover more about our journey at: https://rubylabs.com/about-us/Your RoleWe are seeking a Project Owner who transcends traditional project management. As the operational cornerstone of a dynamic product team, you will oversee delivery, structure, and process excellence while leveraging AI tools to enhance team efficiency.This position is ideal for someone who is driven by efficiency, possesses a systems-thinking mindset, and utilizes AI not just as a concept, but as a practical tool for daily execution. Mastery of Notion will be essential, as you manage task boards, documentation, reporting, and automation, continually striving to optimize team operations.If you require constant direction to identify improvements, this role may not suit you.Key ResponsibilitiesOwnership of Delivery & Execution. Guarantee that every project has a designated owner, timeline, and completion criteria, while monitoring progress consistently to identify blockers and risks early on.Process Management. Take charge of Notion task boards, ensuring they are well-maintained, accurately reflect status, and are properly managed across all teams.Task Quality Assurance. Uphold a Definition of Ready standard, ensuring that every task has clear specifications, acceptance criteria, and dependencies before entering a sprint, with weekly audits to maintain quality.AI & Automation Integration. Proactively automate repetitive processes utilizing Notion AI and other automation tools, creating systems that minimize manual tasks across various functions.Reporting & Visibility. Develop and sustain concise reports on team performance and project status, providing weekly updates to leadership without any surprises.

Join our innovative team at ruby-labs as a Forward-Deployed Engineer. In this dynamic role, you will work closely with clients to deploy cutting-edge solutions, ensuring they harness the full potential of our technology. If you are passionate about tackling complex challenges and delivering high-impact results, we want to hear from you!

Join our dynamic team at ruby-labs as the Head of User Acquisition. In this pivotal role, you will lead our user acquisition strategies and drive growth through innovative marketing techniques. You will work closely with cross-functional teams to develop and execute comprehensive campaigns that attract and retain users.

About UsAt Ruby Labs, we are at the forefront of technology, dedicated to crafting and managing innovative consumer products. Our expansive portfolio spans health, education, and entertainment sectors, offering a multitude of opportunities for talented individuals. Our visionary teams are not just shaping the future of consumer-oriented products; they are revolutionizing it. To learn more about our journey, visit: https://rubylabs.com/about-us/About the RoleWe are on the lookout for a Senior Growth Product Manager to spearhead ARPU (Average Revenue Per User) enhancement by enriching product value and amplifying user engagement within our subscription offerings. Your mission will be clear and measurable: to achieve a 15% quarterly increase in ARPU by fostering improvements in retention, engagement, and overall perceived product value.Ideal candidates will be data-driven, innovative product leaders with a proven track record in optimizing retention and engagement metrics. At Ruby Labs, we prioritize results over efforts; success is gauged by the measurable impact you create rather than the hours you commit.If you thrive on delivering outcomes and are eager to make a significant impact on both our products and your professional journey, this is the ideal environment for you to flourish.

About UsRuby Labs is an innovative technology company dedicated to developing and managing cutting-edge consumer products. We provide a broad spectrum of opportunities within the health, education, and entertainment sectors. Our creative teams are at the forefront of consumer-driven innovations, and we are eager to welcome passionate individuals into our vibrant community. Discover more about our journey at: https://rubylabs.com/about-us/About the RoleWe seek a dynamic and strategic Intellectual Property Attorney who will spearhead our IP and competitive legal strategies across our diverse digital product offerings. This role transcends conventional legal protection and reactive enforcement; you will leverage legal frameworks as strategic tools to protect our assets, actively monitor market activities, and apply legal pressure to maintain our competitive edge.Your position will require a high degree of autonomy and discretion, working closely with our leadership team to identify risks, enforce rights, and establish robust legal leverage in fast-paced digital markets.Key ResponsibilitiesDefend and enforce intellectual property and trademark rights across applications, websites, marketing funnels, branding, and visual identity.Proactively identify, document, and evaluate infringements, imitation trends, and borderline practices aimed at capitalizing on our products.Oversee takedown processes, cease-and-desist letters, platform complaints, and other enforcement measures with a strong emphasis on efficiency and effective results.Formulate legal strategies that not only are formally sound but also materially hinder infringing competitors’ operations.Create and implement structured legal enforcement strategies that elevate the costs associated with non-compliance for bad actors.Continuously assess the market and digital ecosystems to pinpoint emerging risks and opportunities for legal advantage.Collaborate with product, marketing, and executive teams to embed IP protection early in branding, naming, and product development processes.Manage external counsel as necessary while retaining strategic control internally.QualificationsDemonstrated expertise in intellectual property law, with a focus on digital products.Exceptional analytical and strategic thinking abilities.Strong communication skills, both written and verbal.Proven track record in managing IP litigation or enforcement actions.Ability to work independently and as part of a team in a fast-paced environment.Legal degree from an accredited institution and admission to practice law.

Role Overview Ruby Labs is hiring a Head of Product based in Ukraine. This leadership position shapes product strategy and guides development, always keeping business goals and customer needs in focus. The Head of Product manages the full product lifecycle, from the earliest concepts through to launch, and builds a collaborative, innovative team culture. What You Will Do Direct product strategy and oversee development processes Ensure product direction aligns with company objectives and customer needs Manage the entire lifecycle for each product, from initial idea to launch Promote innovation and teamwork within the product group Collaborate with engineering, marketing, and sales teams to deliver products that fit market needs and delight users What We Look For Strong background in market analysis and user experience Experience applying agile methodologies to product development Proven ability to lead cross-functional teams and drive product success