Senior Data Scientist - Threat Intelligence Team

Join our innovative Threat Intelligence team at Nordsec as a Senior Data Scientist. In this pivotal role, you will analyze complex data sets to enhance our cybersecurity measures and protect our clients from emerging threats. You will leverage advanced analytical techniques and machine learning algorithms to derive insights that inform strategic decisions.

Join SKELAR, a pioneering Ukrainian venture builder committed to crafting international tech businesses. Working alongside our co-founders, we assemble talented teams aimed at achieving victory in global markets.Currently, SKELAR boasts a diverse portfolio of businesses across various sectors such as EdTech and marketplaces. Our startups are consistently recognized among Ukraine's top startups and product companies, achieving high rankings in the PlayStore and developing platforms utilized by millions. Our businesses have been featured in renowned media outlets like TechCrunch and Wired.We take pride in a robust team of over 1,000 experts with exceptional expertise and ambitious goals. Our people are our most valuable asset, and we strive to build businesses with the finest talents available in the market.We are currently seeking a Strong Middle/Senior Android Developer.PawChamp is a mobile application and online platform designed for pet parents—dog owners—providing them with resources to train their pets and learn more about dog care through 24/7 expert chats, our AI companion Pawchie, and educational materials developed with canine professionals. We deliver personalized daily lessons covering all aspects of dog training from basic commands to behavioral problem-solving. Our strategic goal is to become a leader in the global online dog training market, catering to all needs of pet parents and their dogs beyond just training.Recognized as Product of the Day on Product Hunt in October 2025.PlayStore rating: 4.2Intro video about the product: Watch hereChallenges awaiting you:- Support and enhance existing functionality; - Implement new features while adhering to agreed architectural approaches; - Ensure product stability and high quality through Unit and Integration testing; - Collaborate closely with a cross-functional team: from discussing logic with the Product Owner to aligning contracts with Backend and refining UI/UX with designers; - Involve in task decomposition, estimation, and collaborative sprint planning; - Actively influence improvements in workflows, technology stack selection, and development approaches within the team;What we value:Must have:4+ years of experience in Android development...

Join MicroStrategy as a Senior Customer Success Manager, where you will play a pivotal role in ensuring our customers achieve their desired outcomes through our innovative analytics platform. In this position, you will leverage your expertise in customer relationship management and your fluency in German to foster strong client partnerships and drive adoption of our solutions.

Join the forefront of online security with the world's leading VPN provider.If you are an inquisitive problem-solver eager to innovate, become a part of the team spearheading Threat Protection Pro, the NordLynx protocol, and the fastest VPN available—empowering users with enhanced privacy, security, and control over their data.Your contribution? Enabling millions to reclaim their online security, privacy, and data.Our Threat Intelligence team is committed to delivering precise and timely insights regarding potential threats to our products. Our diverse team of experts spans various disciplines, including Data Science, Malware Research, Development, and Privacy, all working towards a unified objective through the application of data feeds, heuristics, algorithms, and machine learning.Key ResponsibilitiesDesign and implement solutions to complex problems while conducting research, debugging, and data analysis across various sources;Create scalable, reliable code and document your contributions and explorations;Research, develop, and deploy data science solutions to production;Develop custom machine learning metrics to monitor model performance;Analyze validation/testing outcomes, provide explanations, and refine model designs accordingly;Collaborate with team members to plan deliverables;Perform code reviews to ensure quality;Maintain open communication regarding project progress;Mentor colleagues and share knowledge within the team;Propose enhancements to existing solutions.Core QualificationsDemonstrated experience in data science and/or mathematical modeling;Strong understanding of statistical methods (e.g., Monte Carlo, hypothesis testing, bootstrap, Bayesian inference);Extensive knowledge and practical experience with machine learning algorithms: linear regression, random forest, gradient boosted trees, neural networks, k-means, etc.;Proficiency in Python and hands-on experience with the PyData stack (e.g., Pandas, NumPy, etc.);

Join our dynamic team at fusionconsulting as a Senior SAP Project Training Coordinator. In this pivotal role, you will leverage your expertise in SAP and proficiency in German to design and deliver comprehensive training programs for our clients. Collaborate closely with project stakeholders to ensure effective knowledge transfer and skill development, facilitating seamless transitions during system implementations.Your contributions will directly impact user adoption and the success of SAP projects, making your role crucial to our clients’ success.

About Nordsec Nordsec builds privacy technology used by millions worldwide. The team works on projects such as Threat Protection Pro and the NordLynx protocol, aiming to strengthen online security and data privacy. Role Overview: Mobile Affiliate Manager Based in Warsaw, the Mobile Affiliate Manager will join a team focused on expanding Nordsec’s reach through mobile affiliate partnerships. This position calls for a strategic thinker who enjoys solving problems and shaping the success of key privacy products. What You’ll Do Drive affiliate initiatives for mobile platforms Contribute to projects like Threat Protection Pro and NordLynx protocol Help users worldwide improve their online security, privacy, and data management Who We’re Looking For Proactive approach to work Strong strategic thinking skills Problem-solving mindset Interest in privacy technology and mobile platforms This mid-senior level role offers the chance to make a real difference in how millions manage their privacy online.

Role overview Nord Security is seeking a Mobile Affiliate Manager based in Warsaw. This position centers on expanding the affiliate marketing program, with a particular focus on mobile channels. Success in this role depends on a solid grasp of both affiliate management and mobile marketing, along with the ability to drive business growth. What you will do Develop and maintain strong partnerships with affiliates Optimize mobile affiliate campaigns to improve performance Monitor and analyze campaign data to inform decisions Contribute to team efforts aimed at achieving growth and engagement targets Requirements Professional experience in affiliate marketing, with an emphasis on mobile channels Skill in interpreting performance metrics and making data-driven adjustments to campaigns Ability to collaborate effectively with internal teams and external partners

About Us:Planner 5D serves as a global nexus for home design, bringing together over 100 million users across 230 territories (including two users from Antarctica each month!). Our platform transforms the home renovation journey from concept to implementation, streamlining the process through our state-of-the-art software. You don't need to be a professional designer to enhance your living or workspace; we believe in making the customization of dream homes accessible to everyone.Our cross-platform services include Web, iOS, Android, Windows, and MacOS, ensuring seamless synchronization for our users. Planner 5D is not just software; it's a vibrant community of passionate professionals from diverse backgrounds, collaborating across time zones with a unified goal of revolutionizing the home design industry.We are continually seeking like-minded talent who are eager to take initiative and drive innovation within our expanding suite of tools. Join us in shaping the future of home design!We are on the lookout for a skilled Android Engineer to develop next-generation mobile experiences for millions of users. You will collaborate with AI-driven 3D design tools, enhance performance, and test new features to push the boundaries of possibility. If you appreciate clean and reliable code, thrive in a strong team environment, and are passionate about modern technologies, we invite you to join us in shaping the future of home design!

Join AECOM as an Associate Director focusing on Primary Substations in our Transmission and Distribution (T&D) sector. In this pivotal role, you will lead high-impact projects, manage project teams, and ensure the successful delivery of substations that meet our clients' needs. Your expertise will not only drive project excellence but also foster innovative solutions in the energy sector.

Join our dynamic team as an Angular Developer, where you will be instrumental in developing and modifying code for the front-end of a brokerage platform. Collaborate closely with full-stack and back-end developers to create comprehensive solutions using Java and Angular.Contribute to system architecture changes.Implement new features using Angular.Refactor existing code to enhance performance.Develop integrations with RESTful services.Optimize application performance and implement security solutions.Assist with technical design and documentation.

About UsNRB - Trasys International is a vibrant and globally recognized organization committed to being a reliable partner for EU Institutions. With a robust 30-year history of delivering high-quality solutions, our mission is to facilitate our clients' digital transformation by providing exceptional talent for various challenges. We are continuously seeking skilled professionals eager to engage in stimulating international projects, delivering outstanding results in diverse cultural environments. Our service offerings encompass modernization of solutions, digital workspaces, cloud technologies, and IT security. Headquartered in Brussels, we have a strong presence across Europe including offices in Luxembourg, Amsterdam, Athens, Stockholm, and Geneva.Are You the Right Fit?We are currently seeking a Senior Data Architect based in Warsaw, Poland, to join our long-term initiative within the realms of cybersecurity, public sector, and law enforcement for a European Institution. In this pivotal role, you will oversee business architecture, guide solution designs, and enhance collaboration among business architects and project teams to align with the customer's strategic vision.Important Note: This position requires 80-100% hybrid presence at the client’s headquarters in Warsaw, necessitating candidates to be located within 2-3 hours of ground transportation from Warsaw.Your Responsibilities Will Include:Analyzing business processes, capabilities, functional requirements, and user stories.Translating requirements and user stories into system design and specifications.Modeling and documenting Application and Data Architectures, including logical data models, system roles, use cases, acceptance criteria, system logic, and UI prototypes in collaboration with GUI specialists.Managing non-functional requirements.Identifying potential solution options.Providing development, consultancy, and support services for information systems under Time and Means conditions.Maintaining Application and Data Architectures throughout the systems lifecycle.Presenting and explaining software designs to business experts and product owners.

Join Penumbra, where innovation, collaboration, and proactive thinking are not just values, but the very essence of our work culture. We empower every team member to flourish and make a significant impact in the healthcare landscape. If you seek a role that values your contributions and supports your professional growth, consider becoming part of a team dedicated to saving lives and enhancing health outcomes.As a prominent MedTech leader, Penumbra is committed to delivering state-of-the-art solutions for critical conditions such as stroke, pulmonary embolism, deep vein thrombosis, and acute limb ischemia. With our headquarters in Alameda, California, we proudly employ over 4,500 individuals globally and achieved revenues around $1.2 billion in 2024.

Responsibilities:Collaborate effectively with engineers and artists to enhance and optimize the asset production pipeline.Develop and maintain tools for efficient asset management within the engine.Create innovative shaders and refine existing ones to meet project needs.Optimize assets, shaders, and workflows in accordance with specified hardware requirements.Identify and resolve technical bugs and issues promptly.Foster a collaborative and team-oriented work environment.Document processes and tools to support pipeline efficiency.Qualifications:Minimum of 3 years of professional experience as a Technical Artist in the game development industry.Proficient in Unreal Engine 5 with a strong command of Blueprints and Editor Utility Widgets.Basic programming skills in at least one language (Python, C#, C++).Experience in shader programming, including familiarity with UE4/UE5 Material system, HLSL, GLSL, etc.Background in art tools production.Self-motivated with excellent problem-solving abilities and a collaborative mindset.Intermediate or higher proficiency in English.

Who We AreEstablished in 2017, Unit8 is a dynamic and rapidly expanding AI and data analytics consulting firm based in Europe. We are committed to addressing complex challenges in traditional sectors such as automotive, chemicals, finance, manufacturing, and pharmaceuticals. Collaborating with some of the largest organizations across Europe, we tackle operational, financial, manufacturing, and R&D challenges directly impacting business outcomes. Since our inception, we've successfully executed over 350 projects and expanded to a talented team of more than 170 individuals across 9 offices in Germany, Switzerland, Poland, Spain, the US, and the Middle East.Our MissionUnit8 aims to foster the adoption of AI and Data Science in non-digital industries, facilitating their digital transformation. We dedicate resources and time to projects that resonate with our values, including pro-bono initiatives and engineering for good.Are You the Team Member We Are Looking For?Unit8 is searching for a Senior Consultant to enhance our expanding Data & AI Consulting Practice in Warsaw. This role is pivotal in supporting our data scientists and engineers by offering comprehensive consulting services that span from technical operations to strategic insights. You will have the opportunity to lead the implementation of cutting-edge machine learning models and data science technologies to address real-world challenges. Your responsibilities will encompass the entire project lifecycle, from business development to implementation and client relationship management. You will be an integral part of our team, contributing to the growth of our consulting practice within a thriving AI and Advanced Analytics service provider.What You’ll DoYour responsibilities will evolve based on client and internal needs.In general, you will:Advise clients on their journey to becoming data-driven organizations by evaluating their data and machine learning capabilities, identifying impactful use cases, and defining a strategic implementation roadmap.Engage with clients to understand their data-related challenges, addressing both technical and business inquiries.Collaborate with data scientists, data engineers, and IT architects to deliver impactful data-driven solutions and machine learning applications.Provide guidance on implementing critical enablers such as data governance, model governance, MLOps, and analytics centers of excellence.Work directly with the head of our Data & AI Consulting practice within a small, high-performing team to co-develop growth strategies.

About The Role: PayU is seeking a highly skilled Senior AML & Risk Analyst to join our dynamic team. In this pivotal role, you will oversee the onboarding and reverification process for PayU Merchants across the EMEA region, ensuring compliance and risk management during the post-sales phase. Your responsibilities will include managing the integration of new products, updating data, and implementing additional configurations.You will work in close collaboration with our Compliance and Risk Team, adhering to Know Your Customer (KYC) procedures and Anti-Money Laundering (AML) regulations. As a Senior AML/KYC Analyst, you will also play a key role in mentoring and sharing industry knowledge with fellow team members, fostering a culture of continuous improvement and compliance excellence.

Join MyDr, a pioneering team of technology enthusiasts dedicated to revolutionizing the healthcare sector. We develop sophisticated software solutions for Electronic Medical Documentation and holistic clinic management, bringing the Polish healthcare system into the modern age for both practitioners and patients.Our flagship solution, MyDr EDM, is trusted by over 10,000 clinics, including those partnering with the National Health Fund (NFZ). It delivers a comprehensive suite of functionalities that enhances daily operations in medical facilities—from advanced scheduling and essential appointment tools (e-prescriptions, e-referrals, and e-sick leaves) to cutting-edge telemedicine solutions and seamless integration with the government P1 Platform.Additionally, we proudly offer dr100, a specialized program tailored for dental practices, featuring unique tools such as interactive dental diagrams and dedicated modules for periodontal, prosthetic, and orthodontic needs.Since our founding in 2017, MyDr has established itself as a leader in cloud-based EDM solutions within Poland's medical software market, consistently innovating to meet the evolving needs of healthcare providers.

Join Nord Security and help create a safer digital future.At Nord Security, we empower individuals and businesses to reclaim their online security, privacy, and data. Our innovative solutions range from VPN services and password managers to advanced threat intelligence and eSIMs for travelers, transforming complex challenges into trusted solutions used by millions globally.In this role, your contribution will be vital in enabling users to take control of their online life.We believe that successful products leverage smart and innovative web technologies while fostering personal growth, initiative, and a comprehensive understanding of our users and their challenges.We are seeking a skilled Data Analyst to join our Product Team within the web department. You will be instrumental in developing the next generation of user acquisition platforms, facilitating seamless discovery, learning, and purchasing of Nord Family products. Your role will revolve around deriving actionable insights from data, spotting opportunities, and validating experiments that convert business challenges into sustainable, future-ready solutions.

Are you a seasoned dealmaker with a passion for creating impactful collaborations that enhance performance? Do you have a knack for spotting synergistic opportunities and nurturing robust, long-lasting relationships in various partnership frameworks? If this resonates with you, we invite you to become a vital part of our dynamic Marketing Partnerships Team at Incogni! As a member of the New Partnerships Squad, you will have the thrilling chance to influence our partnership strategy across a broad spectrum, including affiliate partnerships and diverse performance-based marketing initiatives. In this role, you will play a crucial part in expanding Incogni's outreach and boosting customer acquisition by engaging with a variety of new partners. This position grants you the freedom to explore innovative partnership models and refine your negotiation skills, all while contributing to our growth.

Role Overview Sika AG is looking for a Technical Sales Consultant to join the Concrete Technology Segment in Warsaw. This position combines sales responsibilities with technical support for clients in the concrete industry. The role centers on building strong relationships with engineers and contractors, helping them select and apply the right solutions for their projects. What You Will Do Drive sales of products and services within the concrete technology sector. Provide technical guidance and support to clients, ensuring their needs are met. Work closely with engineers and contractors to recommend and implement effective solutions. Help strengthen customer satisfaction and long-term loyalty through reliable service and expertise. Location This role is based in Warsaw.

Nord Security is seeking a Senior UX/UI Designer to join the Saily team in Warsaw. This position centers on shaping the user experience and interface for mobile applications. The main goal is to design interfaces that are both intuitive and visually appealing, supporting user engagement and satisfaction. Role overview This role involves working closely with cross-functional teams to develop and refine mobile app interfaces. The Senior UX/UI Designer translates user needs and research insights into practical design solutions, always keeping the end user in mind. What you will do Collaborate with teams across disciplines to create and improve mobile app interfaces Turn research findings and user needs into effective design concepts Conduct user research to better understand behaviors and preferences Gather feedback and use it to iterate on designs, raising product quality Requirements Proven experience designing UX/UI for mobile applications Ability to convert user insights into engaging, user-friendly designs Comfortable receiving feedback and iterating to improve results Strong collaboration skills with product, engineering, and other teams