Jobs

Level: Middle Engagement: Long-term contract Location: Europe (EU / EEA / UK), remote Working hours:EU business hours, shifted 2–3 hours later to ensure daily overlap with US West Coast (PST/PDT) mornings

ABOUT THE CLIENT

Our client is a leading enterprise data platform company building an open, high-performance data lakehouse for AI and analytical workloads. The platform combines an intelligent SQL query engine, an AI-ready semantic layer, and an open catalog built on Apache Iceberg — enabling Fortune 500 companies across finance, energy, manufacturing, and logistics to unify, query, and govern data at massive scale across cloud and on-premise sources.

ABOUT THE ROLE

We are looking for a Middle-level Software Engineer to work on the core query engine of a large-scale distributed data platform. You will develop features across query planning, optimization, and execution, contribute to performance-critical components, and help evolve the platform's ability to process massive analytical workloads across heterogeneous data sources.

This is a systems-level, backend engineering role focused on distributed data processing internals — not application development or CRUD services.

RESPONSIBILITIES

• Develop and maintain features across the query engine — planning, optimization, execution, and data access layers.
• Write high-quality, performance-conscious code in Java and/or C++.
• Work with SQL semantics, query plans, and execution operators over large-scale distributed data.
• Integrate with columnar formats, open table formats, and connectivity drivers used across the platform.
• Contribute to CI/CD pipelines and automated testing — participate in build, test, and release workflows in Jenkins.
• Deploy and validate work in Kubernetes (GKE / EKS / AKS) across GCP, AWS, and Azure using Docker.
• Debug complex issues spanning query planning, distributed execution, memory management, and I/O.
• Collaborate closely with US-based engineering teams on design reviews, code reviews, and technical decisions.

REQUIRED QUALIFICATIONS

• Education: B.S. or M.S. in Computer Science, Computer Engineering, or a related technical field.
• Programming: Strong proficiency in Java or C++, with solid OOP and software design fundamentals. Candidates comfortable with both are especially valued.
• SQL & Data: Strong SQL skills and solid understanding of relational and analytical data systems, including query execution concepts.
• Data processing systems experience: Hands-on experience with data processing systems — query engines, distributed databases, ETL/ELT frameworks, or analytical platforms.
• Engineering experience: 3+ years in backend/systems software engineering.
• CI/CD & DevOps basics: Practical experience with Jenkins pipelines and modern development workflows.
• Containers: Working knowledge of Docker and basic Kubernetes (running workloads, debugging pods, kubectl fluency).
• Cloud: Comfortable operating in at least one major cloud (GCP, AWS, or Azure).
• Version Control: Confident with Git / GitHub workflows.
• English: Upper-Intermediate or higher (B2+) — daily written and verbal communication with a US-based engineering team.
• Availability: Able to work EU hours with a 2–3 hour shift toward US West Coast time to ensure daily overlap with the client team.

DESIRED SKILLS

• Experience with Apache Arrow (columnar in-memory format).
• Familiarity with Apache Calcite (SQL parsing, planning, optimization framework).
• Exposure to Gandiva or LLVM-based expression compilation.
• Experience with open table formats — Apache Iceberg, Delta Lake, or Hudi.
• Familiarity with distributed computing frameworks (e.g., Apache Spark, Kafka) and MPP SQL query engines(e.g., Presto, Trino, or similar).
• Understanding of query planning, optimization, and execution internals.
• Experience with data connectivity drivers: JDBC, ODBC, Arrow Flight.
• Kubernetes on managed services (GKE / EKS / AKS) and multi-cloud exposure.
• IaC tools such as Terraform.
• Experience with performance profiling and optimization of latency-sensitive systems.
• Please note: We can consider only candidates currently residing in the EU, EEA, or the UK.

Level: Middle Engagement: Long-term contract Location: Europe (EU / EEA / UK), remote Working hours:EU business hours, shifted 2–3 hours later to ensure daily overlap with US West Coast (PST/PDT) mornings

ABOUT THE CLIENT

Our client is a leading enterprise data platform company building an open, high-performance data lakehouse for AI and analytical workloads. The platform combines an intelligent SQL query engine, an AI-ready semantic layer, and an open catalog built on Apache Iceberg — enabling Fortune 500 companies across finance, energy, manufacturing, and logistics to unify, query, and govern data at massive scale across cloud and on-premise sources.

ABOUT THE ROLE

We are looking for a Middle-level SDET to design and maintain automated tests for a large-scale distributed data platform. You will validate the correctness, performance, and reliability of the query engine, connectivity layer, and backend services across all major clouds.

This is a data-heavy, backend-focused role. We are not looking for web/UI QA engineers — the work centers on validating distributed query execution, data correctness at scale, connectivity drivers, and backend microservices.

RESPONSIBILITIES

• Develop and maintain automated tests in Python / pytest for backend services, REST APIs, and distributed data components.
• Write end-to-end, integration, and regression tests covering SQL query execution, data correctness, and platform APIs.
• Support performance and load testing with JMeter, including workloads over JDBC / ODBC / Arrow Flightdrivers.
• Validate data-intensive scenarios — query plans, result correctness across data sources, metadata consistency, and behavior under concurrency.
• Contribute to CI/CD test pipelines in Jenkins — configure, maintain, and troubleshoot.
• Provision and manage test environments in Kubernetes (GKE / EKS / AKS) across GCP, AWS, and Azure using Docker.
• Investigate failures across the stack — query engine, distributed services, drivers, infrastructure — and drive them to resolution with engineering.
• Collaborate with US-based developers on testability and quality gates.

REQUIRED QUALIFICATIONS

• Education: B.S. or M.S. in Computer Science, Computer Engineering, or a related technical field.
• Programming: Strong proficiency in Python, including pytest, with a solid grasp of OOP and software design principles.
• SQL & Data: Strong SQL skills and solid understanding of how relational and analytical data systems work.
• Data-intensive testing experience: Hands-on experience testing data-intensive systems — query engines, ETL/ELT pipelines, streaming platforms, or analytical databases. Candidates with only web/UI QA backgrounds are not a fit.
• Testing experience: 3+ years in backend/system test automation or SDET roles.
• CI/CD & DevOps basics: Practical experience with Jenkins pipelines and deploying/maintaining test environments.
• Containers: Working knowledge of Docker and basic Kubernetes (running workloads, debugging pods, kubectl fluency).
• Cloud: Comfortable operating in at least one major cloud (GCP, AWS, or Azure).
• Version Control: Confident with Git / GitHub workflows.
• English: Upper-Intermediate or higher (B2+) — daily written and verbal communication with a US-based engineering team.
• Availability: Able to work EU hours with a 2–3 hour shift toward US West Coast time to ensure daily overlap with the client team.

DESIRED SKILLS

• Experience testing REST APIs and backend microservices at scale.
• Familiarity with distributed computing frameworks (e.g., Apache Spark, Kafka) and MPP SQL query engines(e.g., Presto, Trino, or similar).
• Understanding of modern data lakehouse concepts, open table formats (Apache Iceberg), and data warehousing.
• Experience with data connectivity drivers: JDBC, ODBC, Arrow Flight.
• Performance testing with JMeter or comparable load-testing tools.
• Kubernetes on managed services (GKE / EKS / AKS) and multi-cloud exposure.
• IaC tools such as Terraform.
• Understanding of query plan generation, query acceleration / materializations, and metadata integrity in distributed data systems.
• Please note: We can consider only candidates currently residing in the EU, EEA, or the UK

We are looking for a Computer Vision Engineer to design and implement visual intelligence systems that power personalized digital experiences across connected devices and mobile applications.

This is a hands-on role focused on applied computer vision - from model design and training to on-device deployment. You will work at the intersection of deep learning, image and video processing, and product integration, collaborating closely with backend engineers, ML engineers, and product managers to bring vision-driven features into production and continuously optimize them for real-world usage and resource-constrained environments.

Responsibilities:

• Design, train, and deploy computer vision models for use cases such as object detection, classification, segmentation, and visual analysis;
• Build and maintain data pipelines for image and video processing, including annotation, augmentation, and dataset versioning workflows;
• Optimize models for inference on edge and mobile devices (quantization, pruning, distillation, hardware-accelerated runtimes);
• Collaborate with product and engineering teams to translate product ideas into vision-powered features;
• Implement model observability, monitoring, and retraining workflows for models running in production;
• Contribute to the architecture of a modern ML platform within a cloud-native microservices environment;
• Work with backend and mobile teams to expose model outputs via APIs and integrate them into customer-facing experiences;
• Evaluate emerging CV/AI research and assess promising methods for future implementation.

Requirements:

• 3+ years of experience in applied computer vision or machine learning with a strong CV focus;
• Strong knowledge of:
  • Deep learning for vision: CNNs, object detection and segmentation architectures (e.g. YOLO, Faster R-CNN, U-Net), and modern vision transformers;
  • Python and ML libraries such as PyTorch, TensorFlow, OpenCV;
  • Building, deploying, and maintaining CV models in production.
• Familiarity with:
  • Model optimization and on-device inference (ONNX, TensorRT, TensorFlow Lite, Core ML, OpenVINO);
  • MLOps tools (e.g. MLflow, TFX, Airflow, Vertex AI);
  • Data and video pipelines (e.g. Kafka, BigQuery, FFmpeg, GStreamer);
  • Model serving frameworks (e.g. FastAPI, TensorFlow Serving, TorchServe).
• Experience with cloud platforms (GCP, AWS, or Azure) and container-based deployments;
• Comfortable collaborating with product, engineering, and analytics teams;
• Bonus: Experience with edge AI, mobile ML, multi-modal models, or real-time video processing at scale.

We Offer:

• Remote work and flexible working hours.
• Legal support.
• Paid sick leaves.
• Paid vacations.
• Medical insurance. 
• Free English classes.

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications, and regulatory technologies. 

We are looking for an Internal Engagement Manager (Gamification) to join our team!

Requirements

• 3+ years of experience in Employee Experience, Product Management, Engagement, Gamification, Internal Communications, Employer Branding or a related field.
• Portfolio of Engagement Initiatives: Proven experience designing and launching digital engagement initiatives, gamification mechanics, interactive campaigns, or specialist recognition programs. Ability to showcase successful projects or case studies is highly preferred.
• Gamification Expertise: Strong understanding of gamification principles and mechanics (e.g., quests, achievements, points, levels, leaderboards) and the ability to apply them to drive specialist engagement and support business objectives.
• Cross-Functional Project Management: Experience leading end-to-end initiatives and collaborating with Product, Engineering, Design, HR, and Communications teams to successfully deliver new features, campaigns, or specialist experiences.
• Product Discovery & User Research: Experience conducting specialist research through interviews, surveys, workshops, or feedback sessions, translating insights into product improvements, and validating new ideas through experimentation.
• English Intermediate+.

Will be plus

• Experience designing loyalty, rewards, or gamification systems: Understanding of behavioral psychology principles and motivation frameworks that drive user engagement and participation.
• Knowledge of behavioral psychology or motivational frameworks: Understanding of how reward and loyalty programs work, whether in e-commerce, digital products, or internal specialist recognition initiatives.
• Experience with digital platforms and engagement products: understanding of the fundamental principles of UX/UI and digital product development, with the ability to collaborate effectively with Product Design, and Engineering teams.

Responsibilities

– Develop and execute the strategic roadmap for gamification and recognition programs, driving specialist engagement while strengthening Business group culture and reinforcing the values.
– Design and improve quests, achievements, rewards, and engagement mechanics.
– Develop and optimize the internal recognition framework.
– Analyze user behavior, engagement metrics, and platform adoption.
– Conduct user research and validate new engagement hypotheses.
– Coordinate implementation across Product, Engineering, Design, HR, Internal Communications, and other cross-functional teams
– Continuously improve gamification mechanics based on data and specialist feedback.

What are the conditions and bonuses?

☘️An exciting and challenging job in a fast-growing product company, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and other;

🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed;

📍Beautiful offices in Warsaw, Limassol work remotely or on-site with comfort and enjoy the opportunity to build a network of connections with professionals day by day;

🧑🏻‍💻Laptop & all necessary equipment for work according to the ecosystem standards;

🏖Paid vacations, personal events days, days off;

🫖Paid sick leave;

👨🏻‍⚕️Medical insurance;

💵Referral program enjoy cooperation with your colleagues and get the bonus;

📚Educational support by our L&D team: internal and external trainings and conferences, courses on Udemy;

🗣Free internal English courses;

🧘Sport benefit;

🦄Multiple internal activities: online platform for employees with quests, gamification and presents for collecting bonuses, RedCore talks club for movie and book lovers, board games cozy evenings, special office days dedicated to holidays;

🎳Company events, team buildings.

Promin Apps is a product-first company on a mission to help people feel better, move more, and live healthier lives — physically and emotionally.
At the intersection of AI, data, behavioral science, and personalization, we build thoughtful digital products that support fundamental lifestyle changes — from yoga and fitness to better habits and mental well-being.

Now, we’re looking for a Manual QA Engineer — someone who will ensure product quality across web, mobile, and web funnel experiences while continuously improving our QA processes.

Why this role:

• Product with purpose: Yogio helps people improve their well-being through expert-designed programs and a deeply personalized experience.
• Strong user love: Our product is rated 4.7/5 on Trustpilot, and every day we hear from users about the positive impact it has had on their health and lives. It’s a constant reminder that our work truly matters.
• Exceptional team: Learn from leaders who’ve built and scaled successful B2C products.
• Fast pace: Ship features in days, not months, and quickly see the impact of your work.
• High ownership: Thrive in a flat, data-driven culture where good ideas matter more than hierarchy.
• AI-powered work: Automate routine tasks with AI and focus on solving meaningful product challenges.
• Room to grow: Expand your ownership and influence as the company continues to scale.
   

What you will do:

• Own the full testing cycle from idea to release across the Web App, iOS and Android apps, and Web Funnel.
• Perform web, mobile, cross-browser, and cross-platform testing.
• Maintain test documentation, regression checklists, and internal release notes.
• Identify and localize defects and manage them through task-tracking systems.
• Test analytics events and create basic dashboards independently or together with data analysts.
• Collaborate with the technical team, PMM, analysts, and marketing.
• Continuously improve QA processes through automation, AI tools, and optimized regression coverage.
• Use product analytics to assess the impact and priority of issues.

What we’re looking for:

• At least 3 years of hands-on experience in manual testing of web and mobile applications.
• Expertise with cross-browser testing and tools such as BrowserStack.
• Confident use of DevTools, SQL, and API testing tools such as Postman.
• Understanding of client-server architecture and HTTP/HTTPS.
• Experience with analytics and tracking tools such as Amplitude and GTM.
• Familiarity with error-monitoring systems such as Sentry and traffic interception tools such as Charles, Fiddler, or mitmproxy.
• Experience using AI tools such as GPT, Claude, and MCP.
• Strong attention to detail, critical thinking, ownership, and product mindset.
• Ability to write clear bug reports, prioritize testing under deadlines, and communicate constructively with the team.
• English at B1 / Intermediate level or higher.

Nice to have:

• Experience with AI-assisted test automation.
• Experience with release management, GitLab, and pipelines.

What we offer:

• Work from anywhere with a fully remote setup that adapts to your lifestyle.
• Flexible working hours that align with your most productive rhythm.
• Basic benefits package, including paid vacation, sick leave, and more.
• Personal and professional support, with advocacy available when you need a hand.
• Access to a curated corporate library filled with resources to fuel your continuous learning and development.

We believe work should have meaning. At Promin, you won’t be building “just another app.” You’ll make something that matters — with people who genuinely care.

Sounds like you? Let’s talk. Send over your CV and let’s explore what we can build together.

We’re looking for a .NET Engineer to join a product team developing a platform for voice communications and Microsoft Teams integrations.

You’ll work primarily on the backend, building services that support Teams calls, meetings, recordings, and communication data. A key part of the role is integrating the product with Microsoft Teams and ensuring these integrations remain stable and reliable in production.

What you’ll do

• Build and enhance backend services with C#, .NET, and ASP.NET Core
• Develop integrations with Microsoft Teams
• Work extensively with Microsoft Graph API and Teams communication APIs
• Implement functionality related to calls, meetings, recordings, and communication data
• Create and maintain REST APIs and integrations with external services
• Investigate and fix production issues related to Teams and voice functionality
• Help improve the platform’s performance, reliability, and scalability
• Contribute to architectural discussions and technical improvements

What we expect

• 3+ years of commercial experience with C# / .NET
• Strong experience building backend applications with ASP.NET Core
• Proven commercial experience integrating products with Microsoft Teams
• Hands-on knowledge of Microsoft Graph API
• Experience with Teams calls, meetings, recordings, or communication APIs
• Experience building integrations with third-party systems and APIs
• Solid understanding of SQL, databases, and backend architecture
• Ability to troubleshoot and solve technical issues independently

• English — B2+

   

Good to have

• Microsoft Graph Communications / Calls & Meetings APIs
• Experience with Teams compliance recording or call-recording solutions
• Previous work with VoIP, telephony, voice, or contact center products
• Knowledge of real-time audio or media processing
• WebRTC, SIP, RTP
• SignalR / WebSockets
• Azure

You’re a backend-oriented .NET Engineer who has already worked with Microsoft Teams integrations in a commercial environment and understands the challenges of communication-focused products.

Beyond strong .NET skills, we’re looking for someone familiar with the practical side of calls, meetings, recordings, and voice integrations, including supporting and troubleshooting them in production.

What’s In It for You?

• Career Growth – Opportunities to develop and advance.
• Performance Reviews – Regular feedback and support.
• Work Anniversaries – Special gifts to celebrate milestones.
• Flexible Work – Hybrid or remote (Lviv office available).
• Mentorship – Guidance from experienced professionals.
• Accounting Support – We handle the paperwork.
• Paid Time Off – 18 vacation days + 5 sick days per year.
• Extra Leave – 10 additional days off annually.
• Free Office Lunches – Enjoy meals on us.
• Team Events – Gatherings, gifts, and a welcoming atmosphere.

We are a fast-growing international iGaming company with 1,000+ professionals and a portfolio of successful products operating across Tier 1–3 markets worldwide.

Driven by innovation, data, and operational excellence, we create engaging player experiences and continue to expand our global presence. Our teams work in a dynamic, fast-paced environment where ownership, collaboration, and continuous growth are at the core of everything we do.

We are looking for an experienced Head of VIP  to lead the end-to-end VIP player lifecycle and drive the commercial performance of the VIP segment.

This is a senior leadership role responsible for managing the entire player journey across PreVIP → VIP → High Roll → Reactivation, ensuring sustainable revenue growth, player retention, and operational excellence.

Key Responsibilities

• Own and manage the full VIP lifecycle, including Active VIP, Recovery, Reactivation, and High Roll segments.
• Drive VIP revenue growth by increasing player activity, deposits, retention, and lifetime value.
• Monitor and optimize key performance metrics, including churn, downgrade, reactivation, and VIP base stability.
• Lead the High Roll function, ensuring effective management, retention, and development of high-value players while balancing commercial opportunities and player risk.
• Oversee the PreVIP pipeline, improving conversion into the VIP segment and accelerating the progression of high-potential players.
• Execute retention initiatives and promotional offers in partnership with the Retention team, ensuring they translate into measurable financial results.
• Evaluate the effectiveness of VIP offers and campaigns, providing actionable feedback to improve segmentation and commercial performance.
• Lead and develop multiple management layers, 
• Set objectives, monitor KPIs, and drive operational excellence across all teams.

• Oversee the relevance and effectiveness of VIP communications across all touchpoints, ensuring a consistent player experience.

   

Areas of Responsibility

• VIP Revenue (IN / IN-OUT)
• Active VIP player base
• VIP Retention and Churn
• Reactivation performance
• PreVIP to VIP conversion
• Player engagement, deposit behavior, and lifetime value

• Financial performance of the VIP segment

   

Nice to Have

• Experience managing a PreVIP function.
• Experience designing and optimizing operational processes.

• Proven track record of scaling VIP operations and growing revenue through player lifecycle management.

   

What We Offer

• Fully remote work.
• Competitive compensation package with a fixed salary and a monthly performance-based KPI bonus.
• Paid vacation and sick leave.
• Professional onboarding and continuous support.
• Career growth opportunities within a fast-growing international company.
• Access to a corporate psychologist, including individual and group sessions.
• Monthly professional development training with our Learning & Development Department to strengthen your leadership and professional skills.
• A dynamic international environment where your leadership and results have a direct impact on business success.

Think you're the right fit? We'd be excited to get to know you! Apply now and become part of our growing international team.🚀

We are looking for a technical support engineer in Bratislava.

Servers.com, powered by Nexcess, delivers specialized Infrastructure as a Service solutions for organizations where performance, scalability, and reliable execution are essential. As part of Nexcess, Servers.com contributes deep infrastructure expertise to a broader cloud technology organization serving businesses worldwide.
 

Our platform provides compute, storage, and networking services across the US, Europe, and Asia, with access to premium server hosting solutions in more than 26 data centers globally. We support leading enterprises and high-growth companies across industries including Big Data, AdTech, FinTech, Gaming, iGaming, Blockchain, and Streaming.

Requirements:
– your English is sufficient for e-mail correspondence;
– you are attentive to details, able to search and analyze information;
​– you have a deep understanding of how the Internet and networks work;
​– experience with Linux operating systems (Ubuntu, CentOS, Debian);
​– knowledge of working in the Linux terminal.​

We will welcome you to our team if you want to learn:
– system administration of servers from anywhere in the world;
– diagnose hardware, software and network server issues;
– work with hardware monitoring;
– work with cloud technologies.

We offer:
– work in a team of professionals at international level;
– comfortable working conditions: schedule without night shifts, no overtime, no phone support, smooth integration into the workflow;– mentor assistance, learning modern IT technologies;
– individual vocational training plan for 12+ months;
– opportunity to practice and improve your English;
– сompetitive salary and all necessary equipment;
– remote work from Bratislava with the possibility to use our co-working space;
– support of legalization in Slovakia if needed.

We are looking for a Network Engineer to join us.

Servers.com, powered by Nexcess, delivers specialized Infrastructure as a Service solutions for organizations where performance, scalability, and reliable execution are essential. As part of Nexcess, Servers.com contributes deep infrastructure expertise to a broader cloud technology organization serving businesses worldwide.
 

Our platform provides compute, storage, and networking services across the US, Europe, and Asia, with access to premium server hosting solutions in more than 26 data centers globally. We support leading enterprises and high-growth companies across industries including Big Data, AdTech, FinTech, Gaming, iGaming, Blockchain, and Streaming.

Key tasks:

• providing network equipment administration at multiple data centers;
• performing the routine and emergency maintenance works on network equipment;
• dealing with requests from external and internal clients;

• directly participating in internal projects (developing network, connecting new locations, implementing new equipment, automation).

   

Requirements:

• proficiency in LAN/WAN principles;
• strong understanding of dynamic network protocols (BGP/OSPF);
• understanding L2-networking: VLANs, xSTP family, LACP, Redundancy (LACP/VRRP/etc);
• ability to perform basic network troubleshooting;
• English level sufficient for reading technical documentation and communicating with customers (Intermediate at least);

• ability to learn, communication skills, willingness to take in and analyze large amounts of new information (mostly technical in English).

   

Will be a plus:

• experience with network equipment from Extreme, Juniper or Nokia;
• EVPN and/or MPLS knowledge;
• certifications from network equipment and software vendors;

• experience in telecom and/or datacenter networking.

   

What do we offer:

• work in a team of professionals at international level;
• mentor assistance, learning modern IT technologies;
• opportunity to practice and improve your English;
• сorporate English Program Compensation;
• comfortable working conditions: schedule without night shifts, no overtime, no phone support, smooth integration into the workflow;
• excellent pay and all necessary equipment;
• remote work from Bratislava with the possibility to use our co-working space;
• relocation support to Slovakia;
• support of legalization in Slovakia if needed.

Level: Middle Engagement: Long-term contract Location: Europe (EU / EEA / UK), remote Working hours: EU business hours, shifted 2–3 hours later to ensure daily overlap with US West Coast (PST/PDT) mornings

About the Client

Our client is a leading enterprise data platform company building an open, high-performance data lakehouse for AI and analytical workloads. The platform combines an intelligent SQL query engine, an AI-ready semantic layer, and an open catalog built on Apache Iceberg — enabling Fortune 500 companies across finance, energy, manufacturing, and logistics to unify, query, and govern data at massive scale across cloud and on-premise sources.

About the Role

We are looking for a Middle-level Software Engineer to work on the core query engine of a large-scale distributed data platform. You will develop features across query planning, optimization, and execution, contribute to performance-critical components, and help evolve the platform's ability to process massive analytical workloads across heterogeneous data sources.

This is a systems-level, backend engineering role focused on distributed data processing internals — not application development or CRUD services.

Responsibilities

• Develop and maintain features across the query engine — planning, optimization, execution, and data access layers.
• Write high-quality, performance-conscious code in Java and/or C++.
• Work with SQL semantics, query plans, and execution operators over large-scale distributed data.
• Integrate with columnar formats, open table formats, and connectivity drivers used across the platform.
• Contribute to CI/CD pipelines and automated testing — participate in build, test, and release workflows in Jenkins.
• Deploy and validate work in Kubernetes (GKE / EKS / AKS) across GCP, AWS, and Azure using Docker.
• Debug complex issues spanning query planning, distributed execution, memory management, and I/O.
• Collaborate closely with US-based engineering teams on design reviews, code reviews, and technical decisions.

Required Qualifications

• Education: B.S. or M.S. in Computer Science, Computer Engineering, or a related technical field.
• Programming: Strong proficiency in Java or C++, with solid OOP and software design fundamentals. Candidates comfortable with both are especially valued.
• SQL & Data: Strong SQL skills and solid understanding of relational and analytical data systems, including query execution concepts.
• Data processing systems experience: Hands-on experience with data processing systems — query engines, distributed databases, ETL/ELT frameworks, or analytical platforms.
• Engineering experience: 3+ years in backend/systems software engineering.
• CI/CD & DevOps basics: Practical experience with Jenkins pipelines and modern development workflows.
• Containers: Working knowledge of Docker and basic Kubernetes (running workloads, debugging pods, kubectl fluency).
• Cloud: Comfortable operating in at least one major cloud (GCP, AWS, or Azure).
• Version Control: Confident with Git / GitHub workflows.
• English: Upper-Intermediate or higher (B2+) — daily written and verbal communication with a US-based engineering team.
• Availability: Able to work EU hours with a 2–3 hour shift toward US West Coast time to ensure daily overlap with the client team.

Desired Skills

• Experience with Apache Arrow (columnar in-memory format).
• Familiarity with Apache Calcite (SQL parsing, planning, optimization framework).
• Exposure to Gandiva or LLVM-based expression compilation.
• Experience with open table formats — Apache Iceberg, Delta Lake, or Hudi.
• Familiarity with distributed computing frameworks (e.g., Apache Spark, Kafka) and MPP SQL query engines (e.g., Presto, Trino, or similar).
• Understanding of query planning, optimization, and execution internals.
• Experience with data connectivity drivers: JDBC, ODBC, Arrow Flight.
• Kubernetes on managed services (GKE / EKS / AKS) and multi-cloud exposure.
• IaC tools such as Terraform.
• Experience with performance profiling and optimization of latency-sensitive systems.
  Please note: We can consider only candidates currently residing in the EU, EEA, or the UK.
  Please note: We can consider only candidates currently residing in the EU, EEA, or the UK

Level: Middle Engagement: Long-term contract Location: Europe (EU / EEA / UK), remote Working hours: EU business hours, shifted 2–3 hours later to ensure daily overlap with US West Coast (PST/PDT) mornings

About the Client

Our client is a leading enterprise data platform company building an open, high-performance data lakehouse for AI and analytical workloads. The platform combines an intelligent SQL query engine, an AI-ready semantic layer, and an open catalog built on Apache Iceberg — enabling Fortune 500 companies across finance, energy, manufacturing, and logistics to unify, query, and govern data at massive scale across cloud and on-premise sources.

About the Role

We are looking for a Middle-level SDET to design and maintain automated tests for a large-scale distributed data platform. You will validate the correctness, performance, and reliability of the query engine, connectivity layer, and backend services across all major clouds.

This is a data-heavy, backend-focused role. We are not looking for web/UI QA engineers — the work centers on validating distributed query execution, data correctness at scale, connectivity drivers, and backend microservices.

Responsibilities

• Develop and maintain automated tests in Python / pytest for backend services, REST APIs, and distributed data components.
• Write end-to-end, integration, and regression tests covering SQL query execution, data correctness, and platform APIs.
• Support performance and load testing with JMeter, including workloads over JDBC / ODBC / Arrow Flight drivers.
• Validate data-intensive scenarios — query plans, result correctness across data sources, metadata consistency, and behavior under concurrency.
• Contribute to CI/CD test pipelines in Jenkins — configure, maintain, and troubleshoot.
• Provision and manage test environments in Kubernetes (GKE / EKS / AKS) across GCP, AWS, and Azure using Docker.
• Investigate failures across the stack — query engine, distributed services, drivers, infrastructure — and drive them to resolution with engineering.
• Collaborate with US-based developers on testability and quality gates.

Required Qualifications

• Education: B.S. or M.S. in Computer Science, Computer Engineering, or a related technical field.
• Programming: Strong proficiency in Python, including pytest, with a solid grasp of OOP and software design principles.
• SQL & Data: Strong SQL skills and solid understanding of how relational and analytical data systems work.
• Data-intensive testing experience: Hands-on experience testing data-intensive systems — query engines, ETL/ELT pipelines, streaming platforms, or analytical databases. Candidates with only web/UI QA backgrounds are not a fit.
• Testing experience: 3+ years in backend/system test automation or SDET roles.
• CI/CD & DevOps basics: Practical experience with Jenkins pipelines and deploying/maintaining test environments.
• Containers: Working knowledge of Docker and basic Kubernetes (running workloads, debugging pods, kubectl fluency).
• Cloud: Comfortable operating in at least one major cloud (GCP, AWS, or Azure).
• Version Control: Confident with Git / GitHub workflows.
• English: Upper-Intermediate or higher (B2+) — daily written and verbal communication with a US-based engineering team.
• Availability: Able to work EU hours with a 2–3 hour shift toward US West Coast time to ensure daily overlap with the client team.

Desired Skills

• Experience testing REST APIs and backend microservices at scale.
• Familiarity with distributed computing frameworks (e.g., Apache Spark, Kafka) and MPP SQL query engines (e.g., Presto, Trino, or similar).
• Understanding of modern data lakehouse concepts, open table formats (Apache Iceberg), and data warehousing.
• Experience with data connectivity drivers: JDBC, ODBC, Arrow Flight.
• Performance testing with JMeter or comparable load-testing tools.
• Kubernetes on managed services (GKE / EKS / AKS) and multi-cloud exposure.
• IaC tools such as Terraform.
• Understanding of query plan generation, query acceleration / materializations, and metadata integrity in distributed data systems.
  Please note: We can consider only candidates currently residing in the EU, EEA, or the UK

About the Role

Trialt is expanding its Statistical Programming team to support international Phase I-IV clinical trials across a range of therapeutic areas. Our programmers work on projects for pharmaceutical, biotechnology, medical device and CRO clients across the US and Europe. Depending on the project and individual experience, you may join a client-dedicated assignment or work within a full-service biometrics team. Project assignments are based on your experience, expertise and current business needs.

What You Will Do

• Independently develop and validate SDTM and ADaM datasets.

• Produce and QC complex tables, listings and figures.

• Interpret protocols, SAPs, dataset specifications and mock shells.

• Take ownership of programming activities for an assigned study or workstream.

• Review deliverables produced by other programmers and provide technical guidance.

• Investigate data issues, SAS log findings and validation findings.

• Support submission deliverables and study documentation.

• Estimate tasks, monitor timelines and communicate project status.

• Participate in client meetings and technical discussions.

• Collaborate with biostatisticians, data managers, medical writers and project teams.

Required Qualifications

• Solid statistical programming experience within clinical research.

• Strong SAS programming skills, including DATA Step, PROC SQL and SAS Macro Language.

• Hands-on experience with SDTM, ADaM and TLF production and QC.

• Strong working knowledge of CDISC standards and controlled terminology.

• Understanding of traceability from source data through SDTM and ADaM to statistical outputs.

• Ability to work independently with protocols, SAPs, specifications and study documentation.

• Ability to manage programming activities for an assigned study or workstream.

• Strong communication, organisation and problem-solving skills.

• English at Upper-Intermediate level or higher.

Strong Pluses

• Previous experience as a Lead Programmer or readiness to take programming ownership.

• Experience with Define-XML, aCRF, SDRG and ADRG.

• Experience using Pinnacle 21 or similar validation tools.

• Experience supporting regulatory submissions.

• Experience with R or Python.

• Previous experience in an international CRO, FSP or sponsor environment.

Working Model

• Fully remote position.

• Full-time engagement.

• Long-term cooperation.

About the Company

We are a leading research and development company, recognized as one of the largest organizations in Ukraine specializing in fine organic synthesis and the development of advanced synthetic methodologies for organic compounds. Our scientific research contributes to cutting-edge innovations in the pharmaceutical and biotechnology industries, with projects that meet international standards.

Our culture is built around professional excellence, respect, teamwork, social responsibility, care for the scientific community, and proactivity.

We are looking for an experienced Lead Monitoring Engineer (SCOM) to architect, implement, and maintain a proactive enterprise monitoring platform based on Microsoft System Center Operations Manager (SCOM) 2022. Your mission will be to build a monitoring ecosystem capable of identifying and preventing service disruptions before they impact business operations or end users.

Responsibilities

• Design, deploy, configure, and maintain Microsoft SCOM 2022, including Management Servers, Gateways, Operational Database, and Data Warehouse.
• Build and support proactive monitoring for a hybrid Microsoft infrastructure, including:
  • Windows Server 2019+
  • Microsoft Exchange (On-Premises)
  • Microsoft 365 / Office 365 services
• Configure hardware monitoring for physical servers.
• Optimize monitoring quality by:
  • Establishing performance baselines
  • Reducing alert fatigue
  • Creating synthetic transactions and health checks
• Develop and maintain custom PowerShell scripts for automation, monitoring, and custom metric collection.
• Design monitoring standards, dashboards, alerts, and reporting to improve infrastructure visibility and reliability.
• Troubleshoot performance and infrastructure issues across enterprise environments.

Required Qualifications

• 3–5 years of enterprise Windows Server administration experience.
• 1–2 years of hands-on experience with enterprise monitoring solutions, preferably:
  • Microsoft SCOM (2012 R2 / 2016 / 2019 / 2022), or
  • Strong experience with Zabbix, PRTG, or Prometheus and a solid understanding of enterprise monitoring concepts.
• Deep knowledge of Windows internals, including:
  • WMI
  • Event Viewer
  • Performance Monitor (PerfMon)
  • Windows Registry
  • Performance troubleshooting (CPU, Memory, Disk I/O, Network)
• Good understanding of Microsoft Exchange architecture, including:
  • Database Availability Groups (DAG)
  • Mailbox databases
  • Transport queues
• Strong PowerShell scripting skills for automation and custom monitoring.
• Basic Microsoft SQL Server administration, including:
  • Indexes
  • Database file placement
  • High Availability concepts

Nice to Have

• Microsoft certifications such as:
  • MCSA / MCSE (Windows Server)
  • MCSE: Cloud Platform and Infrastructure
  • MCTS: System Center Configuration/Operations Manager
• Modern Microsoft certifications:
  • Microsoft Certified: Windows Server Hybrid Administrator Associate (AZ-800 / AZ-801)
  • Microsoft 365 Certified: Administrator Expert (MS-102)
• ITIL 4 Foundation certification or knowledge of Event Management and Incident Management processes.
• Basic XML knowledge for customization of SCOM Management Packs.

What We Offer

• A unique opportunity to design and build an enterprise monitoring platform from scratch, with significant architectural ownership.
• Work in a complex, enterprise-scale Microsoft infrastructure supporting mission-critical scientific operations.
• Official employment with full social benefits and a competitive, fully transparent salary.
• 24 calendar days of paid annual leave.
• Standard 40-hour work week.
• Fully remote work environment.
• Comprehensive medical insurance.
• Access to on-site dental and massage services (where applicable).
• Challenging and meaningful technical projects.
• Continuous learning, certification, and professional development opportunities.

Headway Inc is a global tech company, revolutionizing lifelong learning by creating digital products for over 150 million users worldwide. Our mission is to help people grow. We’re proud to be ranked 4th among the World’s Top EdTech Сompanies by TIME magazine. We believe lifelong learning should be accessible, personalized, and impactful to each individual. That’s how we change the world and why we bring together exceptional minds.
 

The core of our achievements is our team. We believe in people and shared values SELECT. That’s why we’re looking for a Marketing Design Lead to join our new team transforming the EdTech industry.
 

What product & team will you be working on?
 

Nibble is an all-around knowledge app for adult learners. It offers short, interactive lessons on different topics, from art to math. Nibble has been featured as App of the Day in over 50 countries, including the US, the UK, and Canada.
 

You'd join Nibble's marketing team as the lead of Paid Media Design, shaping the ideas that drive business goals, while working closely with User Acquisition and Creative Marketing.
 

This team has already grown into a fully functional unit: currently 4 in-house + project-based designers, making performance work for Meta, TikTok, Google, and others, across different foreign markets and locales, with new ones joining all the time.
 

The foundation is already there: the team, the scope, the way things run. What's missing is someone to hold it all and take it further.
 

Why do we need you?
 

Creative is king. It's what turns user acquisition's reach into results, and as the lead, you're the one who shapes how we grow our spend.
 

In practice, your team is contributing to:

• CAC and pROAS. A steady stream of fresh, tested creative is what keeps acquisition efficient as audiences get tired of seeing the same thing.
• How fast we can grow. Every new channel or locale is waiting on creative before it can really start spending — you're the one who sets that pace.
• What it costs to make. The more thoughtfully you automate and reuse what already works, the more the team can take on.

To make that happen, this team needs someone to lead it, and you're exactly who we're looking for.

In your first 6–12 months, we'll know you've succeeded when:

• Scaling strategies work, and spend grows with them. Winning approaches get identified and scaled.
• New platforms get their own playbook. Every new channel or locale launches with a tailored creative approach that performs fast.
• Your team handles launches, new locales, busy weeks. Capacity is planned for it.
• AI-first, craft still holds. Automation covers repeatable work, freeing headspace for bold ideas while quality stays consistent.
• Your team knows why their work matters, with room to chase new ideas.

What do your responsibilities look like?

• Hold the line on quality and safety. You're the one making sure every piece of creative, across channels and locales, meets the bar and stays within the rules (platform policy, AI disclosure, brand safety).
• Turn goals into a plan people can run with. Growth and paid media targets become quarterly creative OKRs, broken down into concrete goals for each person on the team.
• Run three hubs efficiently. Localization, motion, creative design: you decide how capacity gets shared between them, how much lands with your in-house team versus contractors, and how scaling and localization cycles get planned.
• Invest in your people. Reviews, onboarding, PDPs, regular 1:1s: real attention that helps people grow.
• Stay curious about what's next. New creative strategies, doubling down on what's already working, testing new tools, and giving newer things like UGC, in-house production, and AI-made creative a real home inside the team.

Who are you?

• You've done the production. 3+ years in performance creative for paid social, with hands-on experience running production on Meta, TikTok, or Google inside a performance loop.
• You've led people. 1+ years with direct reports, running the full cycle: 1:1s, PDPs, performance reviews.
• Numbers are part of how you see the work. CTR, pROAS, CAC, hook rate shape your brief as much as any visual does.
• You've scaled creative before. Concept frameworks that produce multiple executions, a refresh cadence, and reuse across formats and placements are familiar territory.
• You forecast capacity like a resourcing lead. Demand forecasting, scope assessment, closing gaps through contractors or hiring are second nature.
• AI is already part of how you think about production. You build with it, alongside engineers.
• You know the platforms cold. Meta, Google, TikTok, including ad policy and AI-disclosure requirements.
• You run on OKRs. Quarterly planning that cascades into focus areas people actually care about.

What do we offer?

• Work within an ambitious team on a socially impactful education product.
• An office with a reliable shelter, generators, satellite internet, and other amenities.
• Access to our corporate knowledge base and professional communities.
• Personal development plan.
• Compensation for English language learning, external training, and courses.
• Medical insurance and full sick leave compensation.
• Company doctor and massage in the office.
• Sports activities: running, yoga, boxing, and more.
• Corporate holidays: we go on a week-long paid holiday to rest and recharge twice a year. Besides that, we provide 20 paid vacation days per year.
• Supporting initiatives that help Ukraine. 

Are you interested? Send your CV!

Meet the YozmaTech

YozmaTech isn’t just another tech company – we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.

We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.

Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family – you’ll feel right at home with us.

Our client is building an innovative AI-powered platform that transforms how the world’s largest companies manage their real estate assets. The solution leverages the latest advancements in artificial intelligence and large language models (LLMs) to automate complex workflows, analyze massive datasets, and provide instant, intelligent answers to business-critical questions.

Their clients are large global enterprises managing thousands of real estate properties worldwide. Traditionally, real estate departments rely on manual processes and third-party services that can take weeks or months to deliver results. With this platform, these processes are automated and accelerated — what used to take months now takes minutes.

Bonus Points:
🔹Work with cutting-edge AI and LLM technologies
🔹Opportunity to solve complex, real-world enterprise problems
🔹High impact work used by global enterprise clients
🔹Full ownership across the full development lifecycle
🔹Fast-paced learning environment with modern technologies
🔹Small, agile, and highly collaborative engineering team

Key Requirements:
🔹 3+ years of experience as a Full Stack Developer;
🔹 Strong commercial experience with Node.js (NestJS preferred) or .NET with readiness to transition to Node.js/NestJS;
🔹 Frontend development experience with Angular 18+;
🔹 Strong proficiency in TypeScript / JavaScript;
🔹 Hands-on experience integrating AI/LLM features (OpenAI API, ChatGPT-based features, etc.);
🔹 Experience using AI tools for development (Cursor, GitHub Copilot, ChatGPT, Claude, etc.);
🔹 Solid understanding of relational and/or NoSQL databases;
🔹 Familiarity with cloud infrastructure and CI/CD pipelines;
🔹 Ability to independently deliver complex end-to-end features;
🔹 Up-to-date knowledge of modern frameworks and willingness to learn quickly;
🔹 English – Upper-Intermediate or higher.

What you will do:
🔹 Develop and maintain full-stack features across frontend and backend components;
🔹 Build and integrate AI/LLM-powered functionality into the platform;
🔹 Design scalable and efficient backend services and APIs;
🔹 Work with databases, including schema design and query optimization;
🔹 Collaborate with product and engineering team to deliver end-to-end solutions;
🔹 Participate in architectural decisions and system design;
🔹 Contribute to infrastructure and CI/CD improvements;
🔹 Ensure code quality through best practices, code reviews, and testing;

Interview stages:
🔹 HR Interview;
🔹 Technical Interview;
🔹 Interview with VP R&D - (30 min)
🔹 Culture Fit Interview with HR (Client-side HR) - (30 min)
🔹 Reference Check;
🔹 Offer;

Why Join Us?

At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products – and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.
From day one, you’ll get:
🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

We’ll keep it respectful, clear, and personal from start to offer.
You’ll always know what project you’re joining – and how you can grow with us.

Everyone’s welcome

Diversity makes us better. We create a space where you can thrive as you are.

Ready to build something meaningful?

Let’s talk. Your next big adventure might just start here.