Head of User Acquisition

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 …

Role overview ruby-labs is hiring an Integration Engineer specializing in JavaScript SDK and APIs. The main focus is on enhancing and maintaining integration solutions that connect our products with client systems. This position involves regular collaboration with teams throughout the company. The Integration Engineer will help design, build, and refine features that address client needs and contribute to a stronger user experience. Key responsibilities Improve and maintain integration solutions using JavaScript SDK and APIs Work closely with internal teams to support client requirements Contribute to the design and development of features that enhance the user experience Location This role is based in Ukraine.

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 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.

KPMG is a leading international network of independent firms providing audit, tax, and advisory services. Discover more about KPMG in Ukraine via this link.KPMG Ukraine has been recognized as one of the top 50 employers by Forbes for 2023-2024 and ranked among the top 5 employers for young professionals in audit and consulting, according to a student survey conducted by the branding agency UGEN in 2023-2024. In March 2025, KPMG Ukraine joined the cohort of leading companies that signed the Principles of Business Friendly to Veterans. We are also listed among taxpayers with a high level of voluntary compliance with tax legislation (the so-called "White Club").We are currently seeking a Compliance Specialist (AML) to join our internal legal team to help uphold the highest standards of quality, ethics, and integrity.Why Join Us?We Offer:Engaging work in teams that create meaningful impact;Access to internal and external training that promotes professional development;Participation in national reconstruction projects;Psychological support services (increased consultations for mobilized persons, veterans, and their families);Health insurance (expanded coverage options for veterans);29 calendar days of vacation;5 additional paid health days;Wellness webinars, yoga classes, book clubs, women's community, and blood donor community;Charitable activities and volunteering, support for vulnerable groups, animal care, and a green office;Official salary with tax deductions;Exciting challenges and transparent growth conditions;Contributions and donations towards victory.Main Responsibilities:KYC/AML checks: conducting due diligence on clients (KYC).Training and process improvement: organizing staff training on financial monitoring and enhancing internal policies and procedures.Updating internal documentation: reviewing and updating policies, procedures, and guidelines related to financial monitoring/compliance.

nix collaborates with a global leader in corporate brand protection and domain management. The client supports Fortune 500 companies and large enterprises by providing domain registration, online brand monitoring, and anti-counterfeiting services. Their work centers on securing digital assets at scale. A new project is underway to combine two legacy client portals into a single platform. The team aims to preserve all current features during the transition. The technology stack includes PHP (Laravel), RabbitMQ, MySQL, and Nuxt.js (Vue.js), all deployed on AWS. Role overview The Senior Automation QA Engineer (Java) will architect and build a comprehensive test automation framework from scratch. This framework will support regression, API, and end-to-end testing for the unified platform. What you will do Design and implement a test automation framework using Java Develop tests for regression, API, and end-to-end scenarios Ensure coverage across the new unified platform Project stack PHP (Laravel) RabbitMQ MySQL Nuxt.js (Vue.js) AWS

KPMG, a leading international firm in audit and consulting, is on the lookout for a talented Motion Graphic Designer with strong graphic design skills. If you have a passion for contemporary visual communication, enjoy bringing ideas to life through animation, and aspire to work on large-scale projects for an esteemed global brand, we would love to hear from you!Your Responsibilities: Create dynamic animated videos for social media and internal communications.Develop video creatives and animated advertising materials for platforms such as Facebook, Instagram, and LinkedIn.Edit videos for our YouTube channel.Design static graphics (social media visuals, banners, etc.) that align with our brand identity.Qualifications: Proficient in After Effects, Premiere Pro, Photoshop, and Illustrator.Experience in animation, video editing, and visual storytelling.Possess a modern aesthetic sense and the ability to tailor trends to corporate identity.Have a portfolio showcasing motion design work and at least 2 years of professional experience.Demonstrate responsibility towards deadlines and commitment to delivering high-quality projects.Preferred Skills: Ability to generate creative ideas and suggest visual solutions.Intermediate English proficiency.Experience with PowerPoint.

Role overview KPMG Ukraine is hiring a System Engineer in Kyiv. This role focuses on designing, implementing, and maintaining complex systems for a range of clients. Collaboration with cross-functional teams is central to the work, with an emphasis on meeting varied client needs and supporting process improvements.

KPMG is a prestigious global network of independent professional services firms that deliver Audit, Tax, and Advisory solutions. Operating under the KPMG brand, our member firms across the globe are committed to providing exceptional professional services. With a presence in 143 countries and territories, we employ over 273,000 partners and staff dedicated to upholding our reputation for excellence.As a DevSecOps Engineer at KPMG, you will join a dynamic team that thrives on innovation and collaboration. We seek a proactive individual who possesses a solid foundation in coding, artificial intelligence, project management, and architectural principles. You will play a pivotal role in engaging with clients on diverse advisory projects, utilizing your expertise to drive impactful solutions.

KPMG is a globally recognized network of independent professional services firms specializing in Audit, Tax, and Advisory services. Operating under the KPMG brand, member firms of KPMG International Limited deliver unparalleled professional services across 143 countries and territories, with a workforce exceeding 273,000 partners and employees worldwide. Each KPMG firm operates as a distinct legal entity, responsibly managing its own obligations and liabilities.Our team at KPMG comprises highly qualified lawyers with extensive experience in guiding both foreign and domestic investors through the complexities of investment projects in Ukraine. We provide expert advice on a range of challenging corporate matters, including restructuring, currency control, and banking & finance issues.

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!

SKELAR is a Ukrainian venture builder dedicated to creating international tech businesses. Together with our co-founders, we assemble strong teams to excel in global markets.Currently, SKELAR operates a dozen businesses across various niches, from EdTech to marketplaces. Our companies rank among the top startups and product companies in Ukraine, achieving high placements in the App Store and developing platforms used by millions. SKELAR's businesses have been featured in prominent media like TechCrunch and Wired.We pride ourselves on a strong team of over 1,000 experts with exceptional expertise and ambitious goals. Our people are our most valuable asset, which is why we strive to build businesses together with the best talent in the market.We are currently seeking a General QA Engineer to join our team:Brighterly is an online mathematics school for children. We are building an educational ecosystem to be the “home page” for learning mathematics for kids and their parents. Brighterly is developing the next EdTech unicorn on a market with a potential of $130 billion.Tech stack: https://skelar-tech.github.io/Brighterly/Key responsibilities include:Impacting functionality quality through manual testing of the platform (primarily web-based)Participating in building the automation framework using PlaywrightReviewing task requirements before development to ensure we do not break existing functionalityMonitoring the quality of daily releasesOffering ideas for improving the testing process to identify issues earlyEstablishing efficient QA processes for a global productWhat we value:Ability to document bugs, create structured cases, checklists, and reports that are easy to reproduceExperience with bug tracking systems (Jira, YouTrack, ClickUp, Testomat.io, etc.)Understanding of APIs and approaches to testing them

Join Kyivstar as a Data Analyst and be at the forefront of data-driven decision-making. In this pivotal role, you will analyze complex data sets to provide insights that will shape business strategies and enhance operational efficiency.

Empower the Digital Economy with SolidgateAt Solidgate, we are dedicated to empowering exceptional entrepreneurs to create outstanding internet companies. Our mission is to provide the financial infrastructure needed to fuel the builders and innovators shaping the digital economy. We are on a relentless journey to become the leading payments orchestration platform worldwide.Why Join Us?Work on a backend-driven product featuring intricate logic and a modern tech stack.Our AQA Tech Stack: Java, TestNG, Selenide, Retrofit, Testomatio.Emphasize quality from the very first line of code — it’s not an afterthought.Automation-first Culture: We believe in quality ownership by every engineer, searching for true engineers, not just testers.Testing at Scale: Our platform operates over 200 individual auto-test suites per service, generating more than 150,000 test results daily.AI-driven Code Review: Reduce boilerplate code, enhance deployment speed, and concentrate on solving real challenges rather than battling repetitive code.The Role and Team DynamicsWe are seeking a Middle / Senior Automation QA Engineer to enhance our Integrations Team, ensuring the reliability of Solidgate’s payment integrations with global payment providers.Your primary responsibility will be testing integrations with payment providers, including card payments and alternative payment methods (APMs). You will validate payment flows, assess provider responses, evaluate business logic, and ensure robust error handling for reliable integrations across various scenarios.Your ContributionsEstablish Test Coverage: Analyze functional requirements, risks, and technical specs to prioritize and focus on critical product aspects effectively.Create Meaningful Test Artifacts: Develop comprehensive automation plans and logical test scenarios to ensure coverage of essential functional areas and pinpoint critical defects.Build Reliable Automated Tests: Design and implement stable automated tests that deliver timely feedback within the CI/CD pipeline.

About Ajax Systems Ajax Systems designs and manufactures security solutions used by over 4.5 million people and 330,000 professionals in more than 180 countries. The company offers a portfolio of 280 devices for intrusion detection, video surveillance, fire safety, and automation, protecting homes and businesses of all sizes. Ajax Systems is based in Kyiv and continues to grow rapidly each year. Quality Assurance at Ajax Reliability and stability are essential for security systems. The QA Department at Ajax Systems is involved in every stage of product development, manufacturing, and ongoing improvement. QA engineers here do more than routine testing. They investigate issues across hardware, software, and system integrations. Testing often involves simulating real-world extremes: movement by people and animals, harsh weather, temperature swings, and even controlled fire or flooding events. Role Overview: Middle Manual QA Engineer This position is part of the Automation Department in Kyiv. The team is looking for someone with strong manual QA skills to help ensure the quality and reliability of Ajax Systems’ expanding product line.

About the Role Vacancies is looking for a Manual QA Engineer based in Kyiv. This position centers on backend testing and verifying email functionality to help maintain product quality and reliability.

YOUR MISSIONAs a vital member of the Glovo Brands Ads team, the Account Manager Brands will contribute significantly to our commitment to delivering innovative advertising solutions that enhance brand visibility, consideration, conversion, and loyalty.YOUR RESPONSIBILITIESGenerate additional revenue for Glovo by developing and selling advertising products.Execute advertising campaigns designed to elevate brand sales, visibility, and awareness within and beyond the Glovo app.Prepare comprehensive campaign reports while offering strategic recommendations driven by data insights.Leverage data analysis to optimize brand activations effectively.Develop success stories to reinforce partnership strategies across diverse categories and regions.

Ajax Systems — a leading international technology firm and the largest manufacturer of security systems in Europe. Our products are trusted by over 4.5 million end users and 330 thousand PRO users across more than 180 countries. Ajax provides comprehensive solutions to safeguard residential and commercial properties of various sizes. Currently, our portfolio includes 280 devices for intrusion protection, video surveillance, fire safety, comfort, and automation. Each year, we demonstrate exponential growth in both team size and user base worldwide.The security systems we develop demand heightened standards of reliability and stability. This is why our QA Department at Ajax Systems supports product development through all stages, from inception to manufacturing and ongoing enhancement. Our team identifies bugs in hardware, software, or system interactions. We are not just a group of 'clickers'; we are creative engineers who test new devices under various extreme conditions: simulating human and animal movements, recreating complex weather scenarios, managing temperature fluctuations, and conducting controlled fires and flooding.

KPMG is a leading global network of professional firms specializing in Audit, Tax, and Advisory services. Operating in 143 countries and territories, we collectively employ over 265,000 professionals, working diligently to provide clients with exceptional service. The KPMG brand represents the member firms of KPMG International Limited, offering a unified approach to professional services worldwide.At KPMG, we prioritize three core principles: delivering high-quality services, understanding our clients' challenges, and maintaining integrity in our operations. These values guide our professionals as they provide audit, tax, and advisory services that exemplify global consistency and unwavering integrity. Our commitment to our people, clients, and communities is foundational to our reputation as the premier firm in the industry.We are currently seeking an experienced Director of IT Consulting to lead our engagement team in delivering transformative results for our clients. This pivotal role involves spearheading projects, nurturing team development, and cultivating strong client relationships. As a key member of the IT Advisory group, you will offer expertise in areas such as digital transformation, IT strategy, system selection, and IT governance.