Senior Data Engineer in AdTech Sector

Role overview Speechify seeks a Senior Software Engineer to focus on Windows and desktop applications. This role is based in Kyiv, Ukraine. The position centers on building software that helps users interact with technology in meaningful ways. What you will do Design and develop applications for Windows and other desktop platforms Create solutions that deliver a smooth and dependable user experience Work on improving performance and optimizing applications Help build features that influence how people use technology in daily life

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 our dynamic team as a Senior Full Stack Engineer where you will engage in exciting projects that enhance the digital landscape. Your expertise in both front-end and back-end development will play a critical role in delivering high-quality software solutions. Collaborate with a team of talented professionals, leveraging the latest technologies to drive innovation and efficiency.

Join our dynamic team in Kyiv, Ukraine, where you will work full-time in our modern office. We provide a convenient shuttle service from the nearest metro station for your ease.About the RoleAs a Senior Embedded Software Engineer, you'll play a pivotal role within our Architecture team, focusing on the development and implementation of essential features that enable our drones to operate safely and autonomously in the skies. Collaborating with our elite team of seven members, you'll push the boundaries of drone technology while working closely with stakeholders in Germany and the US across System Architecture and Hardware Development.Your Daily Responsibilities:Develop, maintain, and optimize the Quantum-Systems autopilot firmware and its associated stack.Design, conceptualize, implement, and test new autopilot functionalities.Export flight control and navigation algorithms from MATLAB/Simulink and integrate them into the autopilot's embedded framework.Implement, maintain, and optimize BSP/peripheral and external sensor drivers for real-time operating systems.Document and maintain autopilot firmware for flight tests, including creating flight test tickets, supporting flight tests, and analyzing post-flight data.Create unit tests and debug/troubleshoot the codebase to ensure comprehensive code coverage and functionality testing.Oversee the firmware update ecosystem, including bootloaders and firmware updates.Assist in the implementation and maintenance of production tools.

Join our innovative team at Nix as a Senior DevOps Engineer, where you'll play a pivotal role in optimizing our AWS Edge infrastructure and supporting Serverless Applications. This key position focuses on enhancing collaboration with our Frontend Development Teams and ensuring seamless end-to-end content delivery for an expanding portfolio of public websites. Your expertise will enable application teams to adopt modern Serverless Application Designs, delivering highly cached and SEO-optimized content with minimal latency to users worldwide. We seek a candidate with extensive knowledge in public cloud environments, HTTP content delivery, Edge Architecture, and JavaScript optimization.

Role Overview auto1 is hiring a Senior Java Engineer in Kyiv. This role focuses on building and improving Java applications that support our clients' needs. The team values collaboration and technical skill, and works together to deliver reliable software. What You Will Do Develop and maintain Java-based applications as part of a skilled engineering team Mentor junior developers and support their technical growth Contribute to architectural discussions and technical decisions Help ensure software products meet quality standards before release What We Look For Strong experience with Java development Ability to work well in a team and share knowledge with others Interest in shaping technical solutions and making architectural choices Experience mentoring or guiding less experienced engineers is a plus Location This position is based in Kyiv.

Join a forward-thinking team at Superhuman, offering a hybrid work model for this internship. This flexible structure allows team members to enjoy focused work while also collaborating in person, promoting trust, innovation, and a robust team culture.Interns must be based in Ukraine and can work remotely, with opportunities to gather in our Kyiv office throughout the internship.About SuperhumanGrammarly is now part of Superhuman, an AI productivity platform dedicated to unlocking extraordinary potential in everyone. The Superhuman ecosystem integrates with over 1 million applications and websites, delivering tools like Grammarly’s writing assistant, Coda’s collaborative workspaces, Mail’s inbox management, and Go, the AI assistant that anticipates needs and provides contextual help. Established in 2009, Superhuman serves over 40 million individuals, 50,000 organizations, and 3,000 educational institutions globally, helping them eliminate busywork and concentrate on what truly matters. Discover more at superhuman.com and learn about our values here.The OpportunityAs we pursue our ambitious objectives, we seek Software Engineering Interns to join our Engineering team for a three-month period during the summer of 2026 (June 23 - September 11, 2026). Interns will engage in diverse projects across front-end, back-end, full-stack, and mobile engineering. In this role, you will face exciting technical challenges and gain valuable experience delivering features to millions of users.Our engineers and researchers enjoy the freedom to innovate and drive significant advancements, influencing our product roadmap. As we grow, the complexity of our technical challenges is rapidly increasing, covering our interfaces, algorithms, and infrastructure. Explore more insights from our team on our technical blog.As a Software Engineering Intern, you will be instrumental in overcoming Superhuman’s key Engineering challenges. Responsibilities include:Contributing to an end-to-end Engineering project aligned with your team’s strategic objectives.Delivering code within your first few weeks.Adapting swiftly in a dynamic environment and offering your unique insights to enhance product direction.

Design, develop, deploy, and manage over 130 modules and multiple applications daily.Enhance your skills by taking a hands-on approach to tackle complex challenges.Elevate standards and spearhead technological advancements to ensure AUTO1 remains at the forefront of innovation.Collaborate closely with diverse product and development teams to bring new, cutting-edge features to fruition. You will have opportunities to explore various technologies and areas of software development.

Join our dynamic Guru Apps team as a Middle+/Senior Software Engineer, where you'll actively engage in the implementation of innovative product experiments alongside our dedicated team.Guru Apps is a multi-product company within Universe Group, focusing on developing global iOS applications in utility and AI niches.Our products streamline the digital routines of millions of users worldwide, offering solutions from memory cleaning to document management on mobile devices, as well as AI tools for image editing and content creation.Over the years, we have achieved remarkable milestones:— Over 100 million downloads— Expanded to 185 countries— Consistently ranked #1 in the App Store, outpacing giants like Google, Netflix, and Instagram— Leading in our niches and setting quality standards in utility and AI categories— Launched our own R&D laboratory, producing at least two new products each year and developing proprietary AI technologies— ⭐ Maintaining an average rating of over 4.6 in the App StoreAt Guru Apps, we prioritize speed, experimentation, and a fervent ambition to build global products infused with Ukrainian innovation. To discover what it's like to work in a community that unites like-minded individuals aspiring to create a Ukrainian unicorn, check out our video about Guru Apps.This role extends beyond coding; you'll collaborate within an R&D-like team to create end-to-end products. Together with your peers, you'll simplify the lives of marketing teams and perform magic on routine and complex processes.You will be part of a team led by the MarTech Team Lead, alongside 3 Backend Engineers and a Frontend Engineer. Read this article by your future manager, detailing unique challenges and solutions that allow the team to optimize their time and accelerate business growth.

At AppsFlyer, we place data at the core of our operations, processing over 150 billion events daily, and we’re rapidly expanding. Our dedicated team builds the essential frameworks that support this growth. Unlike conventional Data Engineering teams, we function as a Software Development team, creating internal services and tools for Data Engineers and other Software Development teams. We are at the forefront of transitioning from a Data Lake to a Data Mesh architecture, providing: Massive-scale data ingestion services Data operations within a Mesh architecture Tools that empower other teams to create reliable, cost-effective, and high-performing data pipelines By working at the intersection of Software Engineering, Data Engineering, and DevOps, we design, build, and maintain the core services that drive AppsFlyer’s data ecosystem.

Role overview Wix.com Ltd. seeks an AI-Native Software Engineer for its Kyiv office. The position centers on building and refining AI technologies that power the Wix platform and serve a global audience. What you will do Build and integrate AI-driven features within Wix products Collaborate with engineers and specialists to deliver reliable solutions Take part in projects that shape the future of web development at Wix Team and culture Work alongside experienced professionals who value practical problem-solving and new ideas. The team supports open communication and shared learning to strengthen both the platform and each member’s skills.

Join SKELAR, a pioneering Ukrainian venture builder focused on creating international tech businesses. Together with our co-founders, we assemble talented teams to succeed in global markets.At SKELAR, we have multiple businesses operating in diverse niches — from EdTech to marketplaces. Our companies are featured among the top startups and product firms in Ukraine, consistently ranking high in the App Store and developing platforms that millions of people use. Our innovations have been covered by major media outlets such as TechCrunch and Wired.We take pride in our strong team of over 1000 professionals, each bringing exceptional expertise and ambitious goals. Our people are our most valuable asset, which is why we strive to build businesses with the best talents available.Every successful venture starts with a single line of code. Are you ready to write the next chapter with us?We are launching a new business.With over 1.8 billion people learning foreign languages, less than 10% can speak them fluently. We are developing an interactive communication environment — the AI Language Tutor — allowing users to speak and learn without the fear of judgment.Our goal is to create a product that learns alongside the user — gathering data to personalize the approach and motivate further learning. We believe in tailored learning experiences rather than one-size-fits-all solutions, leveraging algorithms to help users learn in their own ways and achieve effective results.This product is yet to be built. If you thrive on creating something from the ground up, let’s embark on this journey together!Being among the first five team members means you will play a crucial role in defining the direction of this business. We invite you to join us on this exciting adventure.You will lead the development of our key asset — the AI tutor mobile application. From inception to execution, you will lay the groundwork for the mobile architecture, write the initial lines of the MVP code, and establish release processes. Given that real-time voice interaction with AI is central to our product, your primary technical challenge will be to ensure a seamless, fast, and stable user experience.

Join us at Superhuman, where we embrace a vibrant hybrid work model that balances focused individual work with collaborative in-person sessions. This unique approach cultivates trust, sparks innovation, and strengthens our team culture.About SuperhumanSuperhuman, the parent company of Grammarly, is an AI-driven productivity platform dedicated to unlocking everyone's superhuman potential. We integrate AI seamlessly into the tools people already use, connecting with over 1 million applications and websites. Our product suite includes Grammarly's writing assistance, Coda's collaborative workspaces, Mail's inbox management, and Go, our proactive AI assistant that understands context and provides automatic help. Since our founding in 2009, Superhuman has empowered over 40 million users across 50,000 organizations and 3,000 educational institutions worldwide, helping them eliminate busywork and concentrate on what truly matters. Discover more at superhuman.com and explore our values here.The OpportunityTo meet our ambitious objectives, we are seeking talented Full-Stack Software Engineers to be a part of our engineering teams.As an engineer at Superhuman, you will have the freedom to innovate and drive breakthroughs that will influence our product roadmap. Our technical challenges are evolving rapidly as we scale our interfaces, algorithms, and infrastructure. For more insights, check out our technical blog.In this role, you will take on a pivotal position in enhancing user acquisition and conversion. You will develop innovative features and infrastructure that highlight our product's value, encouraging millions of users to make Superhuman their indispensable writing companion. We welcome you to share your knowledge, experiences, and aspirations with us to ensure the best fit for our team. What is your superpower?Your responsibilities will include:Commencing code development and deployment in your first week, delivering impactful features within your initial months.Building and maintaining production services with high activity on the back-end while crafting rich user interfaces on the front-end.Aiming for high availability for both consumer and enterprise customers.Gaining expertise in infrastructure as code (IaC).Collaborating with internal teams such as Core, Enterprise, Trust, and Data to create delightful user experiences.

Join dev2 as a Senior Principal Java Engineer and become a key player in our innovative development team. In this fully remote role, you will leverage your extensive experience in Java programming to design, develop, and implement high-quality software solutions. Your expertise will drive our projects forward, ensuring best practices in software development and architecture.As a Senior Principal Engineer, you will also mentor junior developers, contribute to technical discussions, and influence our technology stack decisions. If you are passionate about Java and looking for a challenging opportunity to make a significant impact, we want to hear from you!

Our Mission and VisionAt Solidgate, we are dedicated to empowering exceptional entrepreneurs to create outstanding internet companies. Our goal is to support the builders of the digital economy with the financial infrastructure they truly deserve. We are on an ambitious journey to become the world's leading payments orchestration platform.About the Team and RoleAs a Node.js Engineer on the Launch Team, you will be instrumental in powering the backend for Digital Onboarding. Your primary mission will be to ensure that Solidgate collaborates with compliant merchants while delivering a fast, seamless, and scalable onboarding experience.Your challenge will be to construct the quickest path from “I’m interested” to “I’m live.”What Makes This Role UniqueYou will significantly decrease Time-to-Live, positively influencing growth.You will help define the evolving Node.js stack (free from legacy constraints).You will design robust, durable, and scalable systems that target an impressive 99.99% uptime.You’ll harness AI to expedite shipping and integrate AI-driven features into our products.Technology StackOur Launch Team is at the forefront of Solidgate's Node.js stack development. We not only implement tools but also establish the standards, practices, and engineering culture that other teams aspire to follow. Currently, we utilize:Fastify - a lightweight, high-performance web servergRPC + Protobuf - for typed service-to-service communicationPostgreSQL + Drizzle ORM - a reliable data layer with a modern query builderKafka (@platformatic/kafka) - for streaming-first, event-driven architectureVitest - for unit and functional testingWe also implement custom solutions, including distributed locks, metrics, streamers, and more. Discover our complete technology stack here.The tech stack is continuously evolving, providing real influence without any legacy baggage, just modern Node.js supported by mature architectural principles inspired by the Golang ecosystem.Your ResponsibilitiesDevelop and maintain backend services for a seamless onboarding process.Collaborate with cross-functional teams to ensure high-quality deliverables.Optimize application performance and reliability.Leverage modern development practices and tools to enhance efficiency.

Design, develop, test, deploy, monitor, and maintain our comprehensive service-oriented platform, which comprises over 50 RESTful microservices.Leverage your hands-on experience and proactive problem-solving attitude to tackle intricate challenges.Elevate our technological capabilities and drive innovations to keep AUTO1 at the forefront of the automotive industry.Set a strong example for your team, pushing boundaries and striving for excellence.Engage with diverse engineering and product teams to uphold high business standards while exploring other technologies and software development domains.

Speechify seeks an iOS Core Product Software Engineer based in Kyiv, Ukraine. The position centers on creating and refining iOS applications that support users in reading more easily and effectively. Teamwork is a key part of the day-to-day, with frequent collaboration across different specialties. Role overview This engineer will play a direct role in shaping the core iOS experience for Speechify’s users. The work involves both building new features and enhancing existing ones, always with a focus on reliability and usability. What you will do Design, develop, and test new features for Speechify’s iOS apps Work with cross-functional teams to deliver reliable software Contribute to the deployment of high-quality solutions for a global user base

Join our innovative team at Sigma Software Group as a Data Engineer! In this dynamic role, you will leverage your expertise in data architecture and engineering to design and implement robust data solutions that drive informed decision-making across various projects.As a Data Engineer, you will collaborate with cross-functional teams to understand data requirements, develop data pipelines, and ensure data integrity and accessibility. Your work will empower stakeholders to derive valuable insights and contribute to the overall success of our projects.

Superhuman embraces a flexible hybrid working model for this position, allowing team members to enjoy focused work time while also benefiting from in-person collaboration that nurtures trust, innovation, and a robust team culture.About SuperhumanSuperhuman, which includes Grammarly as part of its offerings, is an AI-driven productivity platform dedicated to unlocking the superhuman potential in everyone. Our suite of applications seamlessly integrates AI into daily workflows, connecting with over a million applications and websites. Our flagship products feature Grammarly’s writing assistance, Coda’s collaborative workspaces, Mail’s inbox management, and Go, the proactive AI assistant that offers contextual help automatically. Since our founding in 2009, Superhuman has empowered more than 40 million individuals, along with 50,000 organizations and 3,000 educational institutions worldwide, to eliminate busywork and concentrate on what truly matters. Discover more at superhuman.com.The OpportunityAs we pursue ambitious goals, we are seeking a Site Reliability Engineer (SRE) to join our infrastructure team. This role will focus on developing software to guarantee the reliability of our backend systems, collaborating closely with engineers in charge of these systems, and strategizing for our future expansion. You will collaborate with our existing production engineering teams in the EU as we shift from a “you build it, you own it” paradigm.At Superhuman, engineers and researchers are encouraged to innovate and discover breakthroughs, which directly impacts our product roadmap. As we scale our interfaces, algorithms, and infrastructure, the complexity of our technical challenges is rapidly increasing. Explore more insights from our team on our technical blog.As an SRE, your responsibilities will include:Scaling our Kubernetes-based control plane that handles billions of events daily.Enhancing our automation mechanisms to respond effectively to workload demands.Implementing Machine Learning systems across the organization.