Manual QA Engineer - Backend & Email Testing

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.

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.

We are seeking a skilled Middle Manual QA Engineer to join our dynamic team. In this role, you will play a critical part in ensuring the quality and functionality of our web applications. Your expertise in manual testing will help us deliver exceptional products to our users.

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.

Precoro Inc. is a Ukrainian fintech company helping organizations automate procurement and strengthen oversight. With more than 1,000 clients in over 80 countries, Precoro delivers measurable value and cost savings for businesses worldwide. Role overview Precoro is hiring a Manual Quality Assurance Engineer for the Integrations Module team in Kyiv. This group focuses on integrations with NetSuite and hotglue, collaborating closely with QA, Development, and Product Management. The position plays a key role in maintaining product quality and supporting a global client base. What you will do Manually test complex product modules to ensure reliability and performance. Investigate production issues using Sentry and databases to identify and resolve problems. Create, update, and maintain test cases and related documentation. Work with Product Managers and Developers to uphold high quality standards. Requirements Minimum 2 years of experience as a QA Engineer. Strong skills in web testing. Practical experience with SQL. Ability to analyze issues, find root causes, and recommend solutions quickly. Experience with both structured and adaptable release processes. Nice to have Experience using Sentry or similar error monitoring tools. Basic understanding of automation principles. What Precoro offers Trust as a foundation: Ideas and initiatives are welcomed, and the company does not practice micromanagement.

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.

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.

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.

Hello, let’s get to know each other better. We are Quarks, a technological company that develops niche products in the areas of Social Discovery & Relationship Wellness. We focus on creating safe and effective solutions for dating and relationship development.Additionally, Quarks is:A team of over 250 QuarksRecognized as a top employer in 2024 by DOUAn eNPS score of 80.4%Having offices in Kyiv, with hubs in Lviv and WarsawOur flagship product, Kismia, is a dating application with over 80 million users across more than 20 locations worldwide. We are also engaged in developing services for marketing, analytics, and moderation.Currently, we are looking for a QA Engineer to join our Internal PaaS team, responsible for development, architecture, QA, DevOps, and other processes that form the technological foundation of our products.We are also open to hiring veterans—creating an environment where you can not just be part of the team, but also grow.Your future tasks:Testing the web application at various stages of the development life cycle (primarily front-end)Identifying, documenting, and tracking defects (bug tracking)Monitoring and supporting already implemented functionalitiesPreparing and updating test documentation (checklists, test cases)Participating in refinement, planning, and estimation processesCollaborating closely with a cross-functional team: developers, AQA, designers, analysts, and PMsWhat we value in this role:At least 1 year of experience in manual testing of web applicationsStrong knowledge of testing theory (types, levels, techniques, etc.)Understanding of the software development life cycle (SDLC)Practical skills in using DevToolsExperience with requirements and technical documentationFamiliarity with tools: Jira, Confluence, TMSBasic understanding of client-server architectureIt would be a plus:Experience in automated testing

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

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 Ajax Systems, a leading international technology company and Europe's foremost 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 for their reliability and innovation. We offer comprehensive solutions for protecting residential and commercial properties of all sizes. Our portfolio features 280 devices designed for intrusion protection, video surveillance, fire safety, comfort, and automation. Our team is expanding rapidly, showcasing significant growth in both personnel and global user base each year. Our QA Department plays a crucial role in ensuring the reliability and stability of our security systems, supporting products throughout their development, manufacturing, and ongoing evolution. Our engineers are not just testers; they are creative problem-solvers who rigorously assess new devices under extreme conditions — simulating human and animal movements, replicating challenging weather scenarios, and conducting controlled fire and flood tests.

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.

Ajax Systems is a leading international technology company and Europe's largest developer and manufacturer of Ajax security systems integrated with smart home functionalities. Our comprehensive ecosystem comprises 180 devices, mobile and desktop applications, and robust server infrastructure. Each year, we experience exponential growth in our team size and user base worldwide. Currently, we boast over 4,100 employees, safeguarding 3.5 million users across more than 187 countries.Our Research and Development (R&D) team is responsible for device development and is divided into four core departments: System, Device, Automation, and Quality Assurance (QA).Given the heightened demands for reliability and stability in security systems, the QA Department at Ajax Systems plays a crucial role throughout the product lifecycle—from development through production to ongoing enhancements. Our QA engineers are not just testers; they are creative problem-solvers who identify bugs in hardware, software, or system interactions. They rigorously test new devices under extreme conditions, simulating human and animal movements, recreating challenging weather scenarios, temperature fluctuations, and conducting controlled fire and flooding tests.We are seeking a passionate individual to join our device quality assurance team in Kyiv.

Quantum-Systems is at the forefront of developing next-generation unmanned systems for aerial, land, and maritime applications. From advanced aerial drones to underwater and ground platforms, our systems integrate cutting-edge hardware with AI-driven software, delivering seamless control and real-time data analytics. Trusted by clients in defense, security, and the public sector globally, we are redefining versatility and mission execution efficiency.Quantum-Systems is a committed partner to Ukraine, with a local office established in 2022.We are currently seeking a Test Engineer to ensure the operational effectiveness of our equipment, identifying defects and maintaining quality control prior to release or further repair. This is a vital role that guarantees the reliability of our technology.This position is full-time and office-based. Candidates must be located in Kyiv.Your Daily Mission:Conduct functional testing of equipment within defined parameters.Maintain comprehensive logs throughout the testing process.Identify, describe, and classify discrepancies.Verify devices post-repair or component replacement.Test modules: power supplies, network interfaces, sensors, buttons, and ports.Work with diagnostic software and measuring tools.Conduct load and stress tests as required.Collaborate with service engineers to clarify defects and facilitate equipment repairs.Adhere to internal testing and quality standards.

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.

Join Ajax Systems, a leading international technology company and the largest manufacturer of security systems in Europe. We provide comprehensive solutions to protect residential and commercial properties of all sizes. Our portfolio includes over 280 devices for intrusion protection, video surveillance, fire safety, comfort, and automation. With significant annual growth in both team size and user base worldwide, we are on an exciting trajectory.We are looking for a passionate Image Quality QA Lead to join our Video Department, where your expertise will help ensure exceptional product quality and performance.

SKELAR is a Ukrainian venture builder focused on creating international tech businesses. Together with co-founders, we assemble strong teams to conquer global markets.Currently, SKELAR manages a diverse portfolio of businesses across various niches, from EdTech to marketplaces. Our startups consistently rank among the top in Ukraine, achieving high standings in app stores and developing platforms used by millions worldwide. Our businesses have been featured in renowned media such as TechCrunch and Wired.We are seeking an Email Marketing Manager for our partner business TENTENS Tech. This role will be pivotal in developing retention strategies for our products and systematically increasing user return rates.TENTENS Tech is a Ukrainian IT company specializing in streaming and social discovery platforms. The TENTENS Tech team boasts a successful track record of launching numerous platforms, enjoyed by millions of users across all continents (except Antarctica, for now).Key Challenges:Develop and implement a comprehensive Retention Marketing strategy.Generate, prioritize, validate, launch, and analyze numerous hypotheses regarding retention channel logic.Systematically enhance key product metrics related to user activation, retention, and return.Advance recommendation logic for email, SMS, and web push notifications within our proprietary ESP system.Launch and develop new user retention channels.Conduct regular user and market research to identify new growth opportunities.Be responsible for the strategic development of the area and actively participate in setting departmental goals.What We Value:At least 2 years of experience in email or retention marketing.Analytical thinking and the ability to make data-driven decisions (collecting, analyzing, and interpreting data for product improvement and strategic planning).Skills in creating technical tasks for development.Successful cases of achieving business objectives through product hypothesis validation.Strong competency in working with product metrics and performance indicators.

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.

Playtech seeks a Junior Quality Assurance Engineer in Kyiv to help uphold software quality across its gaming products. This position plays a key part in supporting the Quality Assurance team’s efforts to maintain high standards. Key responsibilities Collaborate with developers and project managers to identify and resolve software issues Assist in testing new features and updates ahead of release Support the ongoing reliability and quality of Playtech’s gaming solutions Role overview This role focuses on hands-on testing and teamwork. Junior Quality Assurance Engineers contribute to the smooth delivery of new features and help ensure Playtech’s games meet quality expectations.