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Talan

Full-time|On-site|Warsaw

Join Talan as an AI Data Scientist and be at the forefront of innovation in artificial intelligence and data analysis. In this role, you will leverage your expertise to analyze complex datasets, develop predictive models, and contribute to cutting-edge AI projects that drive business solutions. Collaborate with cross-functional teams to transform data into a…

Apr 30, 2026

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Data Scientist at QED | Warsaw

QED

Full-time|On-site|Warsaw

QED (https://qed.ai) is an innovative tech firm dedicated to enhancing public health and ensuring food security in Sub-Saharan Africa. Our mission involves developing cutting-edge digital infrastructure and artificial intelligence solutions that bridge the gap between humanitarian aid and scientific research. This includes in-situ nutrient analysis of crops, soils, and foods, along with national-scale surveillance of diseases such as HIV and malaria across multiple African nations. Our organization is proudly supported by various philanthropic and governmental entities, including the Gates Foundation, the Polish Ministry of Agriculture, and the Global Fund.We are excited to invite a talented Data Scientist to our Warsaw team, focusing on ScanSpectrum (https://scanspectrum.qed.ai), a revolutionary low-cost handheld spectrophotometry kit designed to evaluate the quality parameters of food and agricultural products.

Feb 18, 2026

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Data Scientist (Customer Experience) at altersolutions | Warsaw

altersolutions

Full-time|On-site|Warsaw

Join our innovative project aimed at revolutionizing business processes through cutting-edge artificial intelligence and advanced technologies. This initiative leverages intelligent data management and supports automated decision-making while ensuring efficiency, security, and scalability.ResponsibilitiesDesign and implement sophisticated algorithms for generative AI models that improve human-machine interaction in targeted industries.Perform comprehensive analysis of extensive datasets to extract valuable insights, trends, and patterns aligned with the objectives of the joint venture.Develop and train generative AI models, ensuring their reliability and performance through thorough evaluation methods.Collaborate with a skilled team, learning and contributing to the transition from traditional language models to state-of-the-art Large Language Models (LLMs) and fine-tuning methods such as LoRA and QLoRA.Keep updated with the latest advancements in AI and generative models (including open source), proposing and implementing creative solutions to enhance our technology's capabilities.Gain a profound understanding of the shipping and industrial sectors to customize generative AI solutions that tackle specific challenges and opportunities within these domains.

Jul 30, 2025

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Data Scientist - Knowledge Graph & Identity

Samba TV

Full-time|On-site|Warsaw

At Samba TV, we are revolutionizing the way audiences experience streaming and broadcast video worldwide through our cutting-edge data and technology. Our mission is to enhance the viewing experience by empowering media companies to connect with their audiences effectively, while enabling advertisers to engage viewers and accurately measure their reach across multiple devices. With a unique global perspective rooted in our extensive data and AI-driven insights, we have an incredible story to tell.As a Data Scientist on our Knowledge Graph & Identity team in Warsaw, you will take ownership of delivering impactful data science projects from inception to completion with minimal supervision. We are seeking a dependable, self-sufficient contributor who possesses deep expertise in one of Samba's key areas—knowledge graphs, identity spine, measurement, or audience modeling. You will have the technical prowess to create production-ready solutions leveraging modern machine learning (ML) and artificial intelligence (AI) methodologies. Your role will involve close collaboration with your peers, product teams, and engineering, as well as mentoring junior data scientists within the team.

Mar 10, 2026

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Data Scientist at WPP Media | Warsaw, Poland

WPP Media

Full-time|On-site|Warsaw, Poland

About WPP MediaWPP is recognized as the trusted growth partner for the world's leading brands. By leveraging exceptional talent, reliable data, and top-tier partnerships through our innovative marketing platform, WPP Open, we empower clients to navigate change, seize opportunities, and achieve transformative growth.WPP Media, as WPP's AI-driven media operating unit, integrates media, data, and partnerships to provide scalable creative personalization. Through WPP Open and powered by Open Intelligence, our clients gain transparent insights into the effectiveness of their media investments.Explore more at wppmedia.com.WPP is committed to creative transformation, utilizing the power of creativity to forge better futures for our people, our planet, our clients, and our communities. Visit wpp.com for additional insights.At WPP Media, we value our culture and people, which drives us to deliver exceptional experiences for our clients and one another. As part of our team, embracing the core values of WPP and WPP Media is essential:Be Extraordinary by Leading Collectively to Inspire Transformational Creativity.Create an Open environment by Balancing People and Client Experiences through Cultivating Trust.Lead Optimistically by Championing Growth and Development to Mobilize the Enterprise.

Mar 17, 2026

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AI Scientist - Warsaw

Mistral AI

Full-time|On-site|Warsaw

About Mistral AIAt Mistral AI, we harness the transformative capabilities of artificial intelligence to streamline processes, optimize time management, and foster creativity and learning. Our innovative technology is crafted to integrate effortlessly into everyday workflows.We are committed to democratizing AI through the development of high-performance, optimized, open-source models, products, and solutions. Our extensive AI platform caters to both enterprise and personal requirements, featuring offerings such as Le Chat, La Plateforme, Mistral Code, and Mistral Compute, all designed to deliver cutting-edge intelligence to users.Our vibrant and collaborative team is passionate about AI’s potential to revolutionize society. Comprising a diverse workforce that thrives in competitive settings, we are dedicated to fostering innovation. Our teams are distributed across France, the USA, the UK, Germany, and Singapore, embodying a spirit of creativity and teamwork.Join us in shaping the future of AI at a pioneering company. Together, we can drive significant change. Explore our culture further at https://mistral.ai/careers.Mistral AI participates in the E-Verify programYour Role• Innovate and develop groundbreaking methods to advance the capabilities of large language models.• Engage with diverse use cases (e.g., reasoning, coding, agents) and modalities (e.g., text, image, speech).• Construct tools and infrastructure to facilitate large-scale training, evaluation, and analysis of AI models.• Collaborate cross-functionally with scientists, engineers, and product teams to deploy AI systems that make a tangible impact.Your Profile• You possess strong software engineering skills in at least one programming language (e.g., Python, Rust, Go, Java).• You have hands-on experience with AI frameworks (e.g., PyTorch, JAX) or distributed systems (e.g., Ray, Kubernetes).• You demonstrate high engineering competence, capable of designing complex software and ensuring its production usability.• You are a self-motivated individual who excels both autonomously and as part of a team.Ideal Qualifications• You have practical experience in training large transformer models in a distributed environment.• You are adept at navigating the full machine learning lifecycle, from data preparation to model deployment.

Oct 8, 2025

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Data Scientist at evolution | Warsaw

evolution

Full-time|On-site|Warsaw

Join our dynamic team at evolution as a Data Scientist. In this pivotal role, you will harness the power of data to drive strategic decision-making and enhance our product offerings. Collaborate with cross-functional teams to analyze complex datasets, identify trends, and develop predictive models that will help shape the future of our business.

Aug 13, 2025

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Mid-Level Data Scientist at Samba TV | Warsaw

Samba TV

Full-time|On-site|Warsaw

At Samba TV, we are redefining the way viewers engage with content. Our innovative technology and robust data analytics empower media companies to connect with their audiences effectively, and advertisers to track and measure viewer interactions seamlessly across multiple devices. By harnessing a wealth of insights driven by AI and a global dataset, we aim to transform the viewing experience for everyone.As a Mid-Level Data Scientist joining our Knowledge Graph & Identity team in Warsaw, you will take charge of the complete execution of critical data science initiatives with minimal supervision. Your expertise in one of Samba's core areas—be it knowledge graphs, identity management, audience measurement, or modeling—will be crucial. You will utilize modern machine learning and AI techniques to develop production-ready solutions. Collaboration with peers, product managers, and engineering teams will be key, alongside mentoring junior data scientists to foster growth within the team.

Mar 5, 2026

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Data Scientist - Knowledge Graph & Identity at Samba TV | Warsaw

Samba TV

Full-time|On-site|Warsaw

Samba TV is a leading innovator in the streaming and broadcast video landscape, leveraging our proprietary data and advanced technology. Our mission is to revolutionize the viewing experience worldwide. By harnessing our extensive data, media companies can effectively connect with audiences for new shows and movies, while advertisers can engage viewers and accurately measure reach across diverse devices. Our unique narrative and insights, driven by global data and AI, offer an unparalleled perspective on culture.As a mid-level Data Scientist on the Knowledge Graph & Identity team at Samba TV in Warsaw, you will take ownership of significant data science projects, delivering solutions with minimal oversight. You are a dependable and autonomous contributor, possessing deep expertise in one of Samba's core areas—knowledge graphs, identity spine, measurement, or audience modeling—and the technical skills necessary to develop production-ready solutions utilizing modern machine learning and AI techniques. Collaborating closely with peers, product teams, and engineering, you will also play a vital role in mentoring junior data scientists within the team.

Mar 9, 2026

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Senior Data Scientist - Threat Intelligence Team

Nordsec

Full-time|On-site|Warsaw

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.

Mar 26, 2026

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Polish AI Data Specialist

RWS

Contract|Remote|Warsaw

Join our team as an AI Data Specialist and contribute to the enhancement of AI-generated content in Polish. Job Type: FreelanceLocation: Remote workWork Schedule: Part-time - 10+ hours per week, with flexibility to work at your convenience.Start Date: ImmediateDuration: To be confirmedCompensation: Varies based on location Shape the Future of AIIf you are a student, recent graduate, parent at home, gig worker, or a professional seeking flexible remote opportunities, this role is perfect for you. Get involved in the development and safety of cutting-edge AI models! Key ResponsibilitiesAs an AI Data Specialist, you will engage in a range of data-related activities, including:- Collecting, evaluating, and annotating data.- Conducting pairwise comparisons.- Performing counting tasks.- Tagging and labeling objects across various content formats (audio, video, images, and other data). Qualifications- Native-level proficiency in Polish- Proficient in English: Fluent or advanced (B2–C2 level)- Background in AI & Data (Preferred): Experience in machine learning tasks, data collection, preprocessing, evaluation, quality assurance, and annotation. What We Provide- Flexible work schedule- Opportunity for additional income- Timely remuneration- Ideal role for students, part-time workers, or parents at home

Feb 20, 2026

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Senior Data Scientist - Threat Intelligence Team

Nord Security

Full-time|On-site|Warsaw

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.);

Apr 12, 2026

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AI Data Engineer

Telemedi

Full-time|On-site|Warsaw, Masovian Voivodeship, Poland

Join one of Poland's foremost telemedicine platforms as an AI Data Engineer, where you will be the architect of our analytics layer. Your role involves designing and implementing intelligent workflows that transform raw operational data into dynamic, self-validating reports. You will analyze business processes to determine which tasks can be automated using AI, then build and maintain these solutions. You'll be the driving force behind initiatives aimed at streamlining reporting, ensuring it aligns with AI capabilities, and shaping the future of our analytics.

Mar 23, 2026

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AI & Data Presales Specialist

Inetum Polska

Full-time|On-site|Warsaw

The AI & Data Presales Specialist plays a crucial role in steering the complete presales lifecycle for data, analytics, and AI initiatives. This journey spans from initial qualification and discovery phases to solution design, proposal development, and seamless handover to the delivery team. This position demands exceptional client engagement abilities, a solid understanding of contemporary data and AI platforms, and the skill to articulate compelling value propositions and solution narratives. Collaboration is key, as you'll work closely with Specialized Sales, Solution Architects, and Subject Matter Experts (SMEs) to formulate winning proposals that direct clients towards tangible, measurable results.Key ResponsibilitiesOpportunity Qualification & Deal ShapingEvaluate opportunity alignment, customer readiness, stakeholder dynamics, decision-making processes, potential risks, and actionable next steps alongside Specialized Sales.Design commercial strategies, set project boundaries, delivery models, and clarify risk and assumptions.Customer Discovery & Requirements DefinitionLead discovery workshops and interviews with both business and technical stakeholders.Document functional and non-functional requirements, constraints, success metrics, and KPIs.Transform insights into an organized use-case backlog and define the Minimum Viable Product (MVP).Solution Narrative & Architecture CoordinationCraft and sustain the solution storyline, including phased roadmaps, trade-offs, and alternative pathways.Collaborate with Solution Architects and SMEs to establish the solution approach, input for sizing, delivery model, and maintain a risk and assumptions register.Presales Deliverables & Proposal OwnershipGenerate high-caliber presales documentation: executive presentations, proposals/Statements of Work (SoWs), RFP responses, and compliance matrices.Guarantee clarity, structure, and consistency throughout all written communications.Facilitate internal reviews, maintain bid cadence, and conduct readiness checkpoints to ensure alignment between Sales and Architecture.Value Engineering & Business Case DevelopmentDevelop and revise ROI/TCO models, benefit hypotheses, and measurement strategies.Align the value proposition with customer KPIs and strategic objectives.

Mar 12, 2026

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AI Data Engineer at Telemedi | Warsaw, Poland

Telemedi

Full-time|On-site|Warsaw, Masovian Voivodeship, Poland

Join Telemedi as an AI Data Engineer!Telemedi is a pioneering company in the healthcare sector, committed to employing programmers, doctors, and experts across various fields to develop cutting-edge solutions that enhance patient care. Our mission is to leverage technology to provide everyone with convenient and immediate access to medical services.In the role of AI Data Engineer, you will collaborate with us to innovate within the telemedicine and insurance industries.Your Responsibilities:Design and implement autonomous workflows that transform raw data into self-validating reports.Map business processes and determine which aspects can be automated using AI.Build and maintain the analytics layer of our telemedicine platform.Replace manual reporting systems in Excel with intelligent, repeatable pipelines.Construct architectures for data validation systems and monitor the quality of AI outputs.The first three responsibilities will constitute 80% of your work time.

Apr 10, 2026

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Business Development Manager - Data & AI

Inetum

Full-time|On-site|Warsaw

As a Business Development Manager at Inetum, you will tap into your creativity and innovative thinking to drive international sales within the Data & AI sectors. This role allows for the implementation of your unique ideas while adhering to project schedules. We value independence and experience, especially in international sales, all within a supportive and non-corporate atmosphere.Your key responsibilities will include:Marketing and selling our IT services in international markets, primarily targeting the UK, Germany, and Nordic regions.Enhancing the company's international sales capabilities, focusing on acquiring new clients and collaborating with Business Partners.Crafting and delivering compelling proposals to potential clients.Negotiating contracts and agreements for our IT services.Conducting analyses of customer and market needs, defining requirements, and generating innovative ideas to boost sales.Developing and executing sales strategies tailored for foreign markets.Generating and converting leads, including those from our Marketing and Lead Generation Team, into satisfied clients.Establishing long-term partnerships with clients and business partners.

Feb 16, 2026

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Senior Data & AI Consultant at Unit8 | Warsaw, Poland

Unit8

Full-time|On-site|Warsaw, Masovian Voivodeship, Poland

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.

Mar 13, 2026

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Technical Product Manager (Data / AI) - Temporary Contract

Applaudo Studios

Full-time|On-site|Warsaw

Join Applaudo Studios as a Technical Product Manager specializing in Data and AI. In this crucial role, you will drive product development and strategy while collaborating with cross-functional teams to deliver innovative solutions. You will leverage your expertise in data analytics and artificial intelligence to enhance our product offerings and meet client needs.

Apr 6, 2026

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Sales Manager/Sales Director (Data/AI) at Inetum2 | Warsaw

Inetum

Full-time|On-site|Warsaw

Join Inetum as a Sales Manager/Sales Director specializing in Data & AI, where you will strategically align our offerings with client business objectives, driving new customer acquisition and cultivating a robust partner-driven pipeline across the UK, DACH, and Nordic regions. Your Role:Lead new business development initiatives in the UK, DACH, and Nordics, focusing on securing new clients and fostering partner-led opportunities.Manage the complete sales process: from prospecting and discovery to value proposition, proposal, negotiation, and contract signing.Maintain a healthy sales pipeline through proactive prospecting and effectively converting inbound leads into qualified opportunities and closed deals.Collaborate with delivery and pre-sales teams to craft tailored solutions, estimates, and commercial models (T&M, managed services, fixed-price as applicable).Develop and present client-specific value propositions that highlight business outcomes, ROI logic, and implementation strategies.Oversee commercial negotiations and finalize contracts for Data & AI consulting and delivery services.Formulate and implement territory and market sales strategies, including segmentation, ideal customer profiles (ICPs), target account lists, and partner plans.Establish and nurture long-term relationships with clients and partners, including alliances, referrals, and co-selling initiatives.Gather market insights to enhance service offerings and generate innovative go-to-market strategies.

Feb 16, 2026

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Data Platform Engineer

QED AI

Full-time|On-site|Warsaw

QED AI is an innovative technology firm dedicated to enhancing public health and food security in Sub-Saharan Africa. By developing cutting-edge digital infrastructure and leveraging AI, we operate at the critical intersection of humanitarian aid and scientific research. Our initiatives include monitoring diseases such as HIV, malaria, and tuberculosis, as well as conducting nutrient analyses for crops and soils across various African nations. Our funding sources include prestigious philanthropic and governmental organizations such as the Global Fund, Gates Foundation, and the CDC.We are seeking a mid/senior Data Platform Engineer (Backend) to join our dynamic team in Warsaw. Ideal candidates will possess the following:Proven experience in designing and maintaining data pipelines utilizing ETL and/or ELT methodologies, with a critical eye on trade-offs rather than adhering to a single pattern.Solid understanding of data pipeline reliability, including concepts of idempotency, backfills, and the management of late or corrected data.Ability to structure data systems into distinct layers (e.g., raw, cleaned, curated) and articulate their varying functions and guarantees.Experience with making informed decisions between batch, micro-batch, and streaming methods based on latency, accuracy, and operational complexity.Strong foundation in software engineering principles, version control, writing clean code and tests, robust design, and a grasp of basic data structures and algorithms.Ability to conceptualize logical software architectures and communicate clearly, both verbally and in writing.Eagerness to engage with a diverse range of problems and technologies.Willingness to participate in regular design sessions, code reviews, and collaborate effectively within teams.Experience with UNIX-based or OSX-Darwin development environments.Working proficiency (≥C1) in English, both spoken and written (minimum typing speed of 45 words per minute).Interest in collaborating with individuals from different cultural backgrounds.Demonstrated emotional resilience and social intelligence.A genuine passion for your work and a generally optimistic outlook, while recognizing the value of constructive skepticism.Additional skills that are advantageous but not mandatory include:Understanding of analytical data modeling concepts, including hierarchical and dimensional modeling.

Dec 22, 2025

Data Scientist - Knowledge Graph & Identity at Samba TV | Warsaw

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