Junior Quality Assurance Engineer

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.

SKELAR is an innovative venture builder dedicated to establishing international IT firms that align with venture capital investment standards. Collaborating with our co-founders, we curate robust and proficient teams aimed at launching technology enterprises destined for global success.We are in search of a passionate Product Manager to join our partner company, Duomo.Duomo is a transformative application grounded in Christian principles, designed to assist individuals in integrating Scripture into their daily lives, fostering inner peace. Our ambition is to develop a premier church-tech product for those in pursuit of spiritual renewal.To realize this bold vision, we are seeking a Middle Product Manager who will take full ownership of Duomo's evolution and enhance user experiences.Your Responsibilities:Oversee product areas from inception to completion: problem discovery → solution → delivery → outcome.Lead the product development strategy, balancing quick wins and long-term investments.Enhance key product metrics (activation, engagement, LTV) through experimentation and iterative processes.Translate user insights into clear product objectives and quantifiable results.Collaborate closely with Design, Engineering, and Content teams to convert ideas into impactful business results.Qualifications:Minimum of 2 years of experience as a Product Manager in a B2C environment.Ability to deconstruct a vague vision (“make the app more engaging”) into a sequence of testable, measurable hypotheses.Before launching any features, you grasp the user behaviors you aim to influence and how these changes affect key metrics like LTV, activation, or retention.Focus on outcomes over outputs: You feel compelled to question features that do not drive measurable metrics or lack a clear hypothesis.Thrives in a fast-paced environment characterized by speed, ambiguity, and accountability.What Will Drive Your Success:Your success measurement reflects the changes experienced by users and the business.You consistently question, “What problem are we solving?”

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).

Hello!We are on the lookout for a talented Junior/Middle Software Engineer specializing in Go to join Guru Apps (part of Universe Group) – a thriving iOS ecosystem with over 100 million downloads across 186 countries (including Cleaner Guru, Scan Guru, and Visify) and an impressive average rating of 4.6 on the App Store.This is an opportunity focused on progressive development, as nearly all new backend services and products within our ecosystem are launched using Go, featuring high-load capabilities in production, complex business logic, and direct impact on a million-strong audience.You’ll fit right in if you’re eager to:Develop new backend services in Go for products with a global audience while working on Core systems that serve all ecosystem products.Design high-load solutions and witness their real-world performance in production— from initial release to scaling under millions of loads.Take full engineering ownership – from architectural decisions to releases, stability, and ongoing service evolution.Enhance your technical expertise by working with high-load architectures and modern tech stacks (Go, Kubernetes, AWS, Prometheus, OTEL), integrating cutting-edge approaches in backend development.Make a tangible impact on the product – we value engineering insights and technical suggestions, with your contributions directly reflected in products that reach millions.Collaborate within an ambitious team of like-minded peers who don’t just write code but build scalable solutions, sharing knowledge and best practices across the Universe Group.Thrive in a fast-paced decision-making environment – minimal bureaucracy, extensive collaboration, and real influence without lengthy approvals.Challenges you will tackle with your future colleagues:Development of analytical and marketing platforms, which form the basis of user attribution, event processing, and product and business decision-making...

Important: This position requires relocation to our Milan office.About SatispaySatispay is on a mission to transform everyday payments, making them simple, equitable, and accessible for everyone. Our vision extends beyond the present as we strive to shape the future of financial transactions.We are a movement that empowers millions, united by a common goal to confront significant challenges. Our agile approach allows us to innovate rapidly, think creatively, and learn collaboratively as we push boundaries.If you seek to make a meaningful impact alongside a talented team, you have come to the right place.Key ResponsibilitiesAs a Senior Backend Software Engineer within the Business Team, you will significantly influence the future of digital welfare payments. Your responsibilities will encompass everything from employer benefits to sophisticated products, supporting the entire journey for both employers and employees to ensure lasting satisfaction. You will guide the technical direction, maintain quality, and ensure the timely delivery of complex systems that enable numerous employers to manage their corporate welfare efficiently. Here’s what you can expect in your daily tasks:Develop Multi-Service Solutions: Conduct thorough technical analyses for medium-to-large projects affecting various services in the Employer domain. Design comprehensive, highly available solutions, emphasizing scalability, security, and maintainability for products central to welfare.Guarantee Technical Quality: Implement strong testing strategies, balancing both automated and manual coverage while managing gradual rollouts with vigilant monitoring to ensure precise welfare distributions.Identify and Resolve Blockers: Proactively foresee and address technical obstacles, promoting knowledge sharing throughout the organization. Tackle the unique challenges posed by B2B registration workflows and high-volume benefit allocations while ensuring code quality through active reviews.Take Ownership: Own your projects from inception to completion, delivering features that genuinely address user needs—from the moment an employer signs up to when an employee utilizes their welfare benefits—through seamless and efficient back-end integration.

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.

SKELAR is a Ukrainian venture builder dedicated to creating international tech businesses. Together with our co-founders, we assemble strong teams aimed at succeeding in global markets.Currently, SKELAR manages a variety of businesses across different niches, from EdTech to marketplaces. Our companies frequently appear in the rankings of the top startups and product companies in Ukraine, achieving the highest positions in the App Store and developing platforms used by millions of people. Our ventures have also been featured in global media outlets like TechCrunch and Wired.We take pride in our robust team of over 1,000 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 Middle/Senior Lawyer who is ready to immerse themselves in business processes, work with contracts, and develop the legal function alongside our team.Key Responsibilities:Providing legal support for the operational activities of companies (Ukrainian jurisdiction).Preparing, analyzing, and negotiating contracts (primarily in foreign jurisdictions).Conducting KYC of counterparties.Participating in the enhancement/optimization of related processes in the area of contracts and KYC.Collaborating with internal teams to support business processes and ensure legal compliance (including conducting training).Providing legal support to the charity fund.Consulting on legal risks, regulatory changes, and current issues.Participating in the development of internal procedures for contract management and document flow.

Ajax Systems is a leading technology company that takes pride in its comprehensive approach, from conceptualizing innovative ideas to research and development, and ultimately, mass production and sales. We specialize in manufacturing state-of-the-art physical devices, which encompass a variety of sensors and hubs. Our dedicated team is responsible for crafting the firmware, developing the server infrastructure, and launching mobile applications. With offices in both Kyiv and Lviv, we ensure that all technical and product-related decisions are made locally, fostering a collaborative environment.We have successfully launched and continually enhance Malevich OS, the core of our hubs. We are on the lookout for passionate Embedded Engineers eager to join us in elevating our systems. The quest for innovation never ceases, as we strive to introduce new functionalities, sensors, and features to further enhance our offerings.

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.

Join Playtech as a Junior QA Engineer, where you will play a vital role in ensuring the quality and performance of our cutting-edge gaming products. In this entry-level position, you'll work closely with our development team to identify issues, create test plans, and execute software testing procedures. This is an excellent opportunity for recent graduates or individuals looking to start their careers in software quality assurance.

Join our dynamic team at ajax as a Junior Image Quality Engineer in Kyiv. In this role, you will play a pivotal part in enhancing image quality standards across our products. You will collaborate with cross-functional teams to ensure high-quality visual outputs that exceed customer expectations.

Role overview Playtech seeks a Junior Quality Assurance Engineer based in Kyiv. This entry-level position centers on testing gaming software and supporting quality assurance activities. The role helps the team deliver reliable releases and uphold product standards. What you will do Collaborate with experienced QA team members to test gaming products Assist in confirming that software meets Playtech’s quality benchmarks Develop practical skills using different testing methods and tools Take part in team discussions and contribute to ongoing improvements Learning opportunities Build hands-on experience in software quality assurance Work closely with professionals in the gaming industry Gain exposure to Playtech’s technologies and internal processes

Join Our Team at IdealsIdeals is a renowned global B2B SaaS provider celebrated for being the most customer-focused brand in the secure business collaboration space. With over 2 million users across 300,000 companies worldwide, we empower organizations to manage high-stakes processes and make significant decisions with greater ease and efficiency.Ideals Virtual Data Room (VDR): Facilitating secure document sharing and collaboration for due diligence, fundraising, corporate reporting, licensing, clinical trials, and other intricate transactions.Ideals Board: A platform designed for board and leadership collaboration, ensuring faster, safer, and compliant decision-making.Your MissionWe are in search of a Backend Software Engineer (.NET) with AI skills who will be pivotal in developing and scaling our secure, high-load VDR services while also exploring the integration of AI patterns into our product features.Your success will be gauged by your strong backend fundamentals—reliability, performance, scalability, and maintainability—and your capability to implement AI features safely and efficiently using reusable, well-architected components.This role is hands-on within a mature product environment where engineering excellence, observability, and sustainable architecture are paramount.Key ResponsibilitiesBackend Engineering:Design, develop, and maintain high-quality production-grade .NET services.Utilize .NET Framework 4.7, .NET 8, ASP.NET, Web API, and Entity Framework.Create and refine data models with MS SQL Server and PostgreSQL.Deploy and manage services on AWS, leveraging Docker, Kubernetes, and ArgoCD.Ensure service reliability and performance through:Defining clear SLIs, SLOs, and capacity planning.Implementing caching, retries, backoff strategies, and circuit breakers.Establishing secure multi-tenant access control.Take ownership of services from design through implementation, deployment, monitoring, and support.

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.

Atto Trading is a pioneering quantitative trading firm specializing in a diverse portfolio of signal-driven high-frequency strategies across cash equities and futures markets.We are on the lookout for a passionate Trading Operations Engineer to join our vibrant team. With our expansion into new markets, this is a thrilling time to become part of our international collective of experts specializing in trading, statistics, engineering, and technology. Our disciplined methodology, paired with rapid market feedback, enables us to swiftly transform innovative ideas into tangible profits. We foster an environment of collaborative learning, empowering us to tackle the most challenging problems together.As a compact firm, we maintain agility and uphold the highest standards of integrity, creativity, and dedication.Our Trading Activities:We actively trade stocks and futures across major US exchanges, including NASDAQ, NYSE, ARCA, Cboe, CME, CFE, and more.Position Highlights:Seize a unique opportunity to integrate software engineering with real-world finance right from day one.In this position, you will apply your engineering expertise directly to live trading and financial markets.Benefits of Joining Us:Continuous investment in the latest technology stack.A creative approach to selecting the hardware and software tools essential for your work.Join a dedicated team committed to ongoing learning and improvement.No external clients; you will be the sole user of the products you develop.Make a significant impact on the company’s bottom line while holding a crucial position within the organization.Key Responsibilities:Oversee and manage Atto Trading’s automated trading systems, ensuring seamless operations.Automate and refine trading support workflows and pipelines utilizing Python and Bash scripting.Collaborate with software engineering teams to enhance and maintain trading infrastructure and internal monitoring systems. Work alongside traders, engineers, brokers, and exchanges to resolve intraday issues in real time. Support daily risk operations by generating reports and executing established risk procedures.Document production incidents and maintain detailed logs and monitoring protocols.Assist in new market deployments by coordinating with internal teams on infrastructure and connectivity.Manage and maintain enterprise systems concerning pipeline scheduling, software releases, and operational monitoring.Qualifications:Proficient in Python programming with the ability to produce clean, reliable code with minimal oversight.Solid foundational knowledge of Linux (command line, basic system understanding).Expertise in data visualization, manipulation, and processing for operational insights.Meticulous attention to detail with a rigorous, analytical mindset.Ability to thrive in a dynamic and fast-paced environment.

Join Ajax Systems, a prominent international technology company and Europe's leading manufacturer of security systems. With over 4.5 million end users and 330,000 PRO users across more than 180 countries, our products are trusted worldwide. Ajax offers comprehensive solutions for protecting residential and commercial properties of various scales. Our portfolio boasts 280 devices designed for intrusion protection, video surveillance, fire safety, comfort, and automation. Each year, we experience exponential growth in both our team size and the number of users globally.Our Research & Development department is responsible for device development and consists of four key departments: System, Device, Automation, and QA.The Device Department focuses on creating devices for security and automation, tackling significant challenges in the following areas:- Low-Power: Devices must operate for extended periods on standard batteries;- Cost Efficiency: Mass-market products should remain in the mid-price range;- DFM (Design for Manufacturing) and DFH (Design for Human): Circuitry, enclosures, and components must be easily replicable in hundreds of thousands of devices without compromising quality.Our development primarily utilizes STM32 (as well as other MCUs and SoCs) with Embedded C, and we have assembled a strong team of talented hardware and Embedded C engineers, industrial designers, and mechanical developers.

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.