Mid-Level Big Data Engineer

Join our dynamic team as a Senior Data Engineer in the AdTech unit, where you will drive innovation and enhance data-driven decision-making processes. You will work collaboratively with cross-functional teams to develop robust data pipelines and optimize data architectures.

Role Overview Miratech is looking for a Senior Data Engineer in Kyiv. This role focuses on designing, building, and maintaining scalable data architectures that support business growth. The position involves working closely with teams across the company to deliver reliable data solutions. What You Will Do Design and develop data architectures that can scale with business needs Build and maintain data processing pipelines Work with cross-functional teams to deliver data solutions that support business insights Optimize data workflows for performance and reliability Ensure data integrity throughout all processes

TENTENS Tech is a dynamic IT partner of SKELAR, a Ukrainian venture builder dedicated to creating international tech businesses.We specialize in developing social discovery platforms for over 20 million users globally. Our momentum and scale are driven by deep expertise in analytics, high-load systems, and performance marketing.Currently, our team at TENTENS Tech consists of more than 250 talented individuals, each operating as a CEO in their role and contributing to the collective success. We embrace a 10/10ths work style: focusing on our goals, asking the right questions along the way, and never settling for 'good'—always striving for excellence and beyond. If this resonates with you and you're ready to accelerate with us, let's connect!We are seeking a Senior/Lead Data Engineer to spearhead the development of a high-load Data Platform that processes over 2500 data streams and up to 9 PB of data monthly.In this role, you will be the technical driving force of the direction and will build a platform that provides teams with scalable, reliable, and user-friendly access to data.

Ajax Systems is a leading international technology firm and the largest manufacturer of security systems in Europe. With over 4.5 million end-users and 330,000 professional users across more than 180 countries, our Ajax products provide comprehensive solutions for safeguarding residential and commercial properties of all sizes.Our portfolio includes 280 devices designed for intrusion protection, video surveillance, fire safety, and automation solutions. Each year, we showcase significant growth in both our team size and user base worldwide.Ajax Systems operates a complete production cycle, from ideation and prototyping to mass manufacturing and global sales. Each department plays a critical role in meeting the operational needs of our business. Our professionals are engaged at every stage, from the production line in Ukraine to the logistics center in Poland, from where our products are shipped to distributors around the globe.As the Senior Data Engineer Team Lead, you will be responsible for the strategic design, development, and management of complex data processing solutions within an enterprise environment. Your primary goal will be to ensure reliable, secure, and scalable data for analytics, machine learning, and business applications.

Join our dynamic team at Miratech as a Senior Network Data Analyst, where you will leverage your expertise to analyze and optimize network performance. Your analytical skills will directly contribute to enhancing our engineering efforts, ensuring our data infrastructure remains robust and efficient.This role is perfect for someone passionate about data analytics and networking, looking for part-time opportunities to make significant impacts in a growing company.

Storyby, a part of skelar, seeks a Senior Data Analyst in Kyiv. This role centers on applying analytical expertise to guide business strategy and inform key decisions across the organization. What you will do Work with large datasets to identify trends and patterns relevant to the business Produce insights that drive company objectives and support growth Communicate findings clearly to stakeholders from different teams Support product development and improve operational efficiency through thorough data analysis Impact Analysis and recommendations in this role will directly shape Storyby's product direction and contribute to ongoing improvements in how the company operates.

Join our innovative team at resorcer.com as a Senior Mechanical Design Engineer, where you will leverage your expertise in SolidWorks to contribute to cutting-edge projects. Our company is part of a global engineering and manufacturing consortium, dedicated to enhancing Ukraine's manufacturing capabilities through modernization and technological advancement.In this role, you will be pivotal in the design and development of specialized machinery for ammunition and energetics handling. You will create detailed machine assembly drawings for intricate press-type operations, ensuring high standards of quality and safety.

Join Sigma Software Group as a Data Engineer specializing in the interior design sector. In this role, you will leverage your expertise in data management and engineering to develop solutions that enhance data utilization within the design industry. Collaborate with a dynamic team to deliver innovative data-driven insights that will shape our projects and drive business decisions.

We are seeking a highly skilled Senior Data Analyst to join our dynamic team at Sigma Software Group in Kyiv. In this role, you will leverage your analytical expertise to transform data into actionable insights, driving strategic decisions and enhancing operational efficiency.The ideal candidate will possess a profound understanding of data mining, statistical analysis, and data visualization techniques. You will collaborate closely with cross-functional teams to understand their data needs and deliver comprehensive analytical solutions.

Join Atto Trading, a leading quantitative trading firm established in 2010, renowned for our innovative high-frequency trading strategies. As we continue to grow our international team, we are eager to welcome a skilled Data Engineer who will be instrumental in the development of our extensive Data Lake, catering to an increasing array of research and production datasets. Our collaborative culture fosters learning and innovation, empowering our team to tackle complex challenges and drive profitability through rapid market responsiveness.Key Responsibilities:Design and manage high-performance, scalable on-premise data storage systems optimized for extensive data access and analytics tasks.Configure and oversee compute clusters for distributed data processing.Develop capacity and scalability plans to support annual data growth exceeding 100TB.Create efficient monitoring and alerting systems to anticipate growth trends and manage critical situations proactively.Build, automate, and maintain various data pipelines to ensure smooth data flow.Enhance existing and establish new data checks to ensure data integrity.Implement a comprehensive on-premise Data Lake connected to VAST storage for normalized market data across multiple sources including:US Equities, US Futures, and SIP feedsAdditional market data sources as they become availableSecurity Definition data for various marketsPrivate column dataDevelop and manage end-to-end data pipelines with monitoring to ensure data quality and governance.Analyze existing data models and usage patterns to identify bottlenecks and optimization possibilities.Create metadata and catalog layers for efficient data discovery.Design event-driven architectures for near real-time market data processing.Oversee ETL/ELT data pipelines using tools like Prefect or Airflow, ensuring robustness and clear operational ownership.Guarantee fault tolerance, scalability, and availability across our systems.Collaborate with traders, quantitative researchers, and other stakeholders to enhance the usability and performance of the Data Lake.

Join Delivery Hero as a Senior Data Analyst and play a pivotal role in shaping our data-driven strategies. In this position, you will analyze complex data sets, derive actionable insights, and contribute to impactful business decisions. Collaborate with cross-functional teams to enhance our analytics capabilities and drive innovation in our operations.

Welcome to Liven! We are crafting a global ecosystem of self-regulation products that empower individuals to disengage from emotional autopilot and cultivate better relationships with themselves.Within our ecosystem, we offer:Self-discovery Companion — an app chosen by over 2.5 million users. It provides a space for self-exploration through AI coaching, mood tracking, audio practices, and bite-sized learning.Online Coaching — sessions with certified experts to navigate complex situations.Supplements — for physical recovery and body support.We are on a continuous expedition with ambitious plans to expand our ecosystem.Liven is a company for the curious. We are driven by curiosity — an intrinsic need to ask questions, dig deeper, and not shy away from the unknown challenges.Our passion lies in creating products and solutions that genuinely help. Our curiosity and experimental culture exist to discover better ways to support and guide individuals on their self-discovery journeys.Currently, we are seeking a Data Engineer / Analytics Engineer at Liven.In this role, you will be responsible for establishing the company’s robust data foundation, designing storage architecture, and providing analytical teams with quality, ready-to-use data.Challenges Awaiting You:— Ensuring the continuous provisioning of necessary data to analytical teams across various business domains (marketing, product, operations) through stable integrations (using Airbyte and custom solutions);— Organizing long-term DWH architecture (data layer development, modeling, ensuring data integrity);— Developing and optimizing our ELT processes and data transformations within BigQuery using Dataform, as well as implementing reliable process orchestration (with plans to transition to Airflow/Astronomer);What We Value:— Excellent SQL knowledge and a deep understanding of modern analytical warehouse construction concepts;— Practical experience with cloud data ecosystems (ideally GCP, BigQuery) and data transformation tools (Dataform/dbt);

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.

Join Ajax Systems, a leading international technology company and the largest manufacturer of security systems in Europe. Our products are trusted by over 4.5 million end-users and 330,000 PRO-users across more than 180 countries. Ajax offers comprehensive solutions for the protection of residential and commercial properties of all sizes, with a portfolio featuring 280 devices for intrusion prevention, video surveillance, fire safety, and automation. Each year, we experience exponential growth in our team and our global user base.At Ajax Systems, we operate a full-cycle production process: from idea generation and prototyping to mass production and global sales. Each department addresses specific operational needs of the business. Our specialists are involved at every stage, from our production line in Ukraine to our logistics center in Poland, from where products are dispatched to distributors worldwide.As a Middle Data Engineer, you will be responsible for the development, maintenance, and optimization of data processing streams and solutions under the guidance of a Senior Data Engineer (Lead). Your primary goal will be to ensure reliable, high-quality, and scalable data for analytics, machine learning, and business applications.

Join our dynamic Data Team at Wix as a DevOps Engineer, where you will play a pivotal role in optimizing our infrastructure and enhancing our data processing capabilities. You will collaborate with cross-functional teams to improve deployment automation, maintain system reliability, and ensure the scalability of our services.

Role overview Miratech is seeking a Senior DevOps Engineer based in Kyiv. This position centers on designing, building, and refining cloud infrastructure. The role involves integrating and deploying applications to support smooth, reliable delivery. What you will do Create and enhance cloud infrastructure to meet business requirements Implement and maintain continuous integration and continuous deployment (CI/CD) pipelines Collaborate with engineering, QA, and product teams to streamline deployment processes Optimize systems for stability, scalability, and efficiency Requirements Proven experience building and managing cloud infrastructure Familiarity with CI/CD tools and workflows Strong collaboration skills and an interest in solving technical challenges with others Proactive mindset and ability to adapt to shifting priorities

Role overview Miratech is hiring a Senior Network Engineer/Analyst in Kyiv. This role focuses on designing, implementing, and maintaining network infrastructures. The position sits within the engineering department and collaborates with teams across the company to support reliable network operations and strong performance.

Our Mission and VisionAt Solidgate, we are driven by a clear mission: to empower exceptional entrepreneurs in building outstanding internet companies. We strive to support the innovators who are shaping the digital economy by providing them with the financial infrastructure they need. Our ambitious goal is to establish ourselves as the world's leading payments orchestration platform.About the Team and RoleAs a member of the Billing team, you will take charge of the Taxes module, a vital component of our billing system responsible for tax calculations and reporting across various jurisdictions.The product has surpassed the MVP stage and is currently in active use by our customers. With the foundational logic established and a high demand for our services, your focus will be on scaling both functionality and reliability.This position is particularly exciting as you will not be maintaining legacy code; instead, you will be building and shaping a critical system almost from the ground up. You will have a clear path to leadership, overseeing the direction of the Taxes module, making architectural decisions, and expanding your team.Your team will consist of a Product Owner, one Senior Engineer, an Automation QA, and a Tax Manager.Discover our technology stack here.What You Will OwnYou will focus on:Developing tax calculation and reporting logicIntegrating third-party tax providersEnhancing system resilience and uptimeMaking architectural decisions and setting technical directionMentoring engineers as the team growsIn the initial months, your efforts will be directed towards delivering essential tax functionalities and establishing a robust foundation for future product and team expansion.We prioritize automated testing over manual QA—unit, integration, functional, and end-to-end tests are integral to our shipping and scaling processes.You Are a Great Fit If You Have4+ years of backend engineering experience1.5+ years of commercial experience in Go developmentA strong understanding of high-load system designSolid experience with PostgreSQLExperience with cloud technologies and microservices architecture

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.