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Data Scientist at Paystone
Warsaw, Masovian Voivodeship, Poland - Full Time
Skills Needed
Sql, Python, Machine Learning, Churn Prediction, Segmentation, Lifetime Value Modelling, Recommender Systems, Production Ml, Api Integration, Ai Coding Tools, Model Monitoring, Evaluation Frameworks
Specialization
Requires over 5 years of experience as a Data Scientist or ML Engineer with strong proficiency in SQL and Python. Candidates should have a proven track record of deploying production ML models and familiarity with AI coding agents.
Experience Required
Minimum 5 year(s)
Product Manager (Gamification) at Sylvan Shores Health & Wellness
Warsaw, Masovian Voivodeship, Poland - Full Time
Skills Needed
Product Management, Gamification, Product Roadmap, User Stories, Backlog Prioritization, Data Analytics, Market Analysis, Cross Functional Leadership, Software Development Knowledge, Web Technologies, Igaming Industry Expertise, Product Lifecycle Management
Specialization
Candidates must have at least 2 years of Product Management experience specifically within the iGaming or gambling industry. A strong technical background in software development and proficiency in data-driven market analysis are required.
Experience Required
Minimum 2 year(s)
Pracownik/Pracowniczka Sklepu - pełny etat at Wheelhouse East Inc
Jasienica, Lower Silesian Voivodeship, Poland - Full Time
Skills Needed
Customer Service, Cashier Operations, Merchandising, Inventory Management, Teamwork, Polish Language Proficiency, Time Management, Attention To Detail
Specialization
Candidates should be willing to work in shifts and weekends, demonstrating commitment and teamwork skills. While not mandatory, one year of professional experience and sanitary-epidemiological certifications are preferred.
Specialist, Fund/Client Accounting II at BNY
Wrocław, Lower Silesian Voivodeship, Poland - Full Time
Skills Needed
Fund Accounting, Expense Management, Financial Operations, Microsoft Excel, Analytical Thinking, Financial Data Interpretation, Professional Communication, Process Improvement, Collaboration, Budgeting
Specialization
Candidates must have a Bachelor's degree in Accounting, Finance, or a related field and at least 2 years of experience in fund accounting or financial operations. Proficiency in Microsoft Excel and a strong understanding of fund structures and regulatory requirements are required.
Experience Required
Minimum 2 year(s)
Kwalifikowany Pracownik Ochrony Galerii w Centrum Warszawy (K/M) at Securitas USA Corporate Services
Wilanów, Holy Cross Voivodeship, Poland - Full Time
Skills Needed
Physical Security, Intervention Actions, Patrolling, Emergency Response, Security Supervision, Observation
Specialization
Candidates must be registered as Qualified Physical Security Workers and have a clean criminal record. Physical fitness and the ability to perform duties in a standing and moving capacity are essential.
Service Technician at Konecranes
Wrocław, Lower Silesian Voivodeship, Poland - Full Time
Skills Needed
Electrical Troubleshooting, Lifting Equipment Maintenance, 3 Phase Motors, Frequency Converters, Control Systems, Working At Heights, Technical Consulting, Customer Relationship Management, Technical Documentation
Specialization
Requires a minimum of secondary electrical education and experience with drive devices and control systems. Must hold a valid SEP certification up to 1 kV and a Category B driver's license.
Experience Required
Minimum 2 year(s)
SPRZEDAWCA / SPRZEDAWCZYNI JYSK Sierpc 1/2 ETATU (2550 PLN) at JYSK
Sierpc, Masovian Voivodeship, Poland - Full Time
Skills Needed
Sales, Customer Service, Teamwork, Communication, Merchandising, Inventory Management, Relationship Building, Initiative
Specialization
Seeking sales-oriented individuals with strong communication skills and a commitment to high-quality customer service. Candidates must be flexible with working hours, including Saturdays and trading Sundays.
Business Intellignece Expert with QlikView - Freelance, part-time at Netguru
, , Poland - Full Time
Skills Needed
Qlikview, Data Analysis, Bi Solution Migration, Bi Consulting, English Proficiency
Specialization
Candidates must have proven expertise in QlikView and experience with BI migrations. They must be located within the European Union and possess a good command of written and spoken English.
Experience Required
Minimum 5 year(s)
HR Intern at GATES CORPORATION
Legnica, Lower Silesian Voivodeship, Poland - Full Time
Skills Needed
Hr Administration, Onboarding, Internal Communication, Employee Documentation, Ms Excel, Ms Powerpoint, Organizational Skills, English Proficiency, Polish Proficiency
Specialization
Candidates should be students or graduates in HR, Business Administration, Psychology, or a related field. Fluency in both Polish and English (minimum B1) and proficiency in MS Office are required.
Staff I Product Manager at Blackline Systems Corporation
Krakow, Lesser Poland Voivodeship, Poland - Full Time
Skills Needed
Product Management, Project Management, Agile Methodologies, Scrum, Kanban, Roadmap Development, Feature Design, Stakeholder Management, Market Research, Competitive Intelligence, B2b Product Management, Enterprise Application Business, Analytical Skills, Problem Solving, Communication, Collaboration
Specialization
Requires 6+ years of product management experience, with at least 4 years in enterprise applications and a bachelor's degree or equivalent experience in accounting. Proficiency in Agile methodologies and deep familiarity with Office of Finance transactional systems are essential.
Experience Required
Minimum 5 year(s)
Płatny staż w dziale IT - Administrator CAD/PLM (k/m) at Bosch Group
Warsaw, Masovian Voivodeship, Poland - Full Time
Skills Needed
Cad Administration, Plm, Ai Integration, Server Administration, Powershell, Bash, C++, C#, Python, Autocad, Inventor, Vault, Analytical Thinking, English Proficiency
Specialization
Candidates should be students of IT, mechanical engineering, or related fields with an analytical approach to problem-solving. Basic knowledge of CAD tools, scripting (PowerShell/Bash), and English communication skills are required.
Housekeeping Supervisor at Radisson Hotel Group
Gdansk, pomorskie, Poland - Full Time
Skills Needed
Teamwork, Communication, Attention To Detail, English Language, Personal Culture, Problem Solving, Leadership, Hospitality Management
Specialization
Requires at least 2 years of experience in a similar role or the hospitality industry. Candidates must possess strong communication skills, English proficiency, and a positive 'Yes I Can!' attitude.
Experience Required
Minimum 2 year(s)
Lead Consultant with Hungarian at ADP
Warsaw, Masovian Voivodeship, Poland - Full Time
Skills Needed
Sap Payroll, Kronos/Workforce Manager, Client Consultation, Business Blueprinting, Agile Methodology, Project Management, Quality Assurance, Data Mapping, User Acceptance Testing, Mentoring, Technical Documentation, Risk Management, Analytical Thinking, Time Management, Microsoft Visio, Stakeholder Management
Specialization
Candidates must have a Bachelor's degree and configuration experience in SAP Payroll or Kronos/Workforce Manager across multiple countries. Strong consulting skills and the ability to handle multiple client projects simultaneously are required.
Experience Required
Minimum 5 year(s)
Senior AI Engineer (All Genders) at zooplus SE
Krakow, Lesser Poland Voivodeship, Poland - Full Time
Skills Needed
Python, Backend Engineering, Llm Application Development, Prompt Engineering, Api Design, Ai Observability, Ai Safety, Azure Openai, Openai, Bedrock, Langchain, Rag, Graph Databases, Infrastructure As Code, Java, Kotlin
Specialization
Requires strong Python backend engineering skills and proven experience shipping LLM-powered applications to production. Candidates should be proficient in prompt engineering, API design, and AI safety controls.
Experience Required
Minimum 5 year(s)
Senior Python Developer at Endava
Gdansk, Pomeranian Voivodeship, Poland - Full Time
Skills Needed
Python, Django Rest, Flask, Fastapi, Sql, Git, Aws, Azure, Gcp, Agile, Scrum, Kanban, Ci/Cd, Rest, Json, Oop
Specialization
Requires over 5 years of Python experience and a mandatory background in Capital Markets or Financial Services. Candidates must be proficient in architectural patterns, cloud platforms, and have upper-intermediate English skills.
Experience Required
Minimum 5 year(s)
Junior Claims Enforcement Specialist at UniCredit
Warsaw, Masovian Voivodeship, Poland - Full Time
Skills Needed
Documentation Handling, Debt Enforcement, Case Management, Teamwork, English B2, Polish C1, Office Administration, Reporting, Analysis, Self Organization
Specialization
Candidates need at least one year of office experience in document handling and registration. Proficiency in English (B2) and Polish (C1) is required, along with a focus on accuracy and results.
Talent Acquisition Specialist at Colibrix One
Warsaw, Masovian Voivodeship, Poland - Full Time
Skills Needed
End To End Recruitment, Candidate Sourcing, Interviewing, Workable Ats, Linkedin Recruiter, Stakeholder Management, Offer Negotiation, Reference Checks, Employer Branding, Data Handling, Russian Language, English Language
Specialization
Requires proven experience in talent acquisition, preferably within the fintech or iGaming sectors, and knowledge of EU markets. Fluency in Russian and professional proficiency in English are mandatory.
Experience Required
Minimum 2 year(s)
Pracownik/Pracowniczka Sklepu (niepełny etat) at Wheelhouse East Inc
Jabłonna, Łódź Voivodeship, Poland - Full Time
Skills Needed
Customer Service, Cashier Operations, Merchandising, Teamwork, Time Management, Polish Language Proficiency, Attention To Detail
Specialization
Candidates should be willing to work in shifts and weekends with a strong commitment to teamwork and accuracy. While not mandatory, one year of professional experience and sanitary-epidemiological certifications are preferred.
Platform Engineer / 1 at Inetum
Lublin, Lublin Voivodeship, Poland - Full Time
Skills Needed
Linux, Bash, Git, Puppet, Ansible, Tcp/Ip, Dns, Bgp, Containerization, Tomcat, Nginx, Haproxy, Ipvs, English, Polish, Analytical Thinking
Specialization
Candidates must be proficient in Linux, Bash scripting, and networking concepts, with experience in configuration management tools like Puppet or Ansible. Fluency in both English and Polish is required, while certifications in RHEL or ITIL are considered a plus.
Experience Required
Minimum 2 year(s)
Koordynator ds. Marketingu (K/M) at METRO/MAKRO
Warsaw, Masovian Voivodeship, Poland - Full Time
Skills Needed
Hr Administration, Personnel Documentation Management, Payroll Support, Ms Office, English Communication, Sap Hr, Oracle, Employee Benefits Administration
Specialization
Candidates need at least one year of experience in a similar HR role and proficiency in MS Office. Communicative English and familiarity with SAP HR or Oracle systems are highly valued.
Data Scientist at Paystone
Warsaw, Masovian Voivodeship, Poland -
Full Time


Start Date

Immediate

Expiry Date

04 Sep, 26

Salary

0.0

Posted On

06 Jun, 26

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

No

Skills

SQL, Python, Machine Learning, Churn Prediction, Segmentation, Lifetime Value Modelling, Recommender Systems, Production ML, API Integration, AI Coding Tools, Model Monitoring, Evaluation Frameworks

Industry

Financial Services

Description
🚀 Join Paystone and Shape the Future of Customer-Driven Growth! 🚀 At Paystone, we build products that help small businesses grow through better customer experiences. We’re focused on using data and AI to power smarter decisions, stronger relationships, and measurable business impact. Rooted in our values of thinking people first, solving impactful problems, and building a better future, we’re investing in intelligent systems that bring machine learning directly into the hands of our customers. Your Role: Data Scientist We’re looking for a remote Data Scientist to help build and ship machine learning models that power real product experiences. You’ll work closely with Product, Engineering, and BI to turn data into systems that drive segmentation, churn prediction, lifetime value modelling, and personalized recommendations. This is an end-to-end role where you’ll help define problems, build models, and support production delivery. Why Paystone? Impact: Build models that directly influence customer experiences and business outcomes. Flexibility: People-first approach focused on outcomes, not location or hours. Innovation: Work at the intersection of machine learning, product thinking, and AI-assisted development. Collaboration: Partner closely with Product, Engineering, and BI in a fast-moving, supportive environment. What You’ll Do: Partner with Product and BI to turn business goals into well-scoped ML problems with clear success criteria and guardrails Build and productionize models for segmentation, churn, LTV, and recommendations Design evaluation frameworks including offline benchmarks and online feedback loops to ensure models are measured, not assumed Collaborate with Engineering on production design considerations like latency, payload structure, fallbacks, and failure modes Monitor model performance over time, detect drift, and own retraining and iteration cycles Use product telemetry and user feedback to drive continuous model and feature improvements Work alongside AI coding agents to accelerate development (pipelines, tests, refactoring, exploration) while maintaining human oversight Communicate results, trade-offs, and recommendations clearly across technical and non-technical teams Who You Are 5+ years as a Data Scientist, Applied Scientist, or ML Engineer Strong SQL and Python skills with production ML experience Experience with churn, segmentation, LTV, or recommender systems Comfortable working with production systems and APIs Familiar with AI coding tools and agentic workflows Strong communicator who can simplify technical concepts Nice to Have Experience in loyalty, CRM, or retail analytics LLM or AI agent experience Building internal tools or ML infrastructure French/English bilingual If you’re excited about building practical, impactful ML systems that ship into real products, we’d love to meet you.
Responsibilities
Build and productionize machine learning models for segmentation, churn, LTV, and personalized recommendations. Collaborate with Product, Engineering, and BI teams to turn business goals into scalable ML systems and monitor their performance.
Data Scientist at Paystone
Warsaw, Masovian Voivodeship, Poland - Full Time
Skills Needed
Sql, Python, Machine Learning, Churn Prediction, Segmentation, Lifetime Value Modelling, Recommender Systems, Production Ml, Api Integration, Ai Coding Tools, Model Monitoring, Evaluation Frameworks
Specialization
Requires over 5 years of experience as a Data Scientist or ML Engineer with strong proficiency in SQL and Python. Candidates should have a proven track record of deploying production ML models and familiarity with AI coding agents.
Experience Required
Minimum 5 year(s)
Product Manager (Gamification) at Sylvan Shores Health & Wellness
Warsaw, Masovian Voivodeship, Poland - Full Time
Skills Needed
Product Management, Gamification, Product Roadmap, User Stories, Backlog Prioritization, Data Analytics, Market Analysis, Cross Functional Leadership, Software Development Knowledge, Web Technologies, Igaming Industry Expertise, Product Lifecycle Management
Specialization
Candidates must have at least 2 years of Product Management experience specifically within the iGaming or gambling industry. A strong technical background in software development and proficiency in data-driven market analysis are required.
Experience Required
Minimum 2 year(s)
Pracownik/Pracowniczka Sklepu - pełny etat at Wheelhouse East Inc
Jasienica, Lower Silesian Voivodeship, Poland - Full Time
Skills Needed
Customer Service, Cashier Operations, Merchandising, Inventory Management, Teamwork, Polish Language Proficiency, Time Management, Attention To Detail
Specialization
Candidates should be willing to work in shifts and weekends, demonstrating commitment and teamwork skills. While not mandatory, one year of professional experience and sanitary-epidemiological certifications are preferred.
Specialist, Fund/Client Accounting II at BNY
Wrocław, Lower Silesian Voivodeship, Poland - Full Time
Skills Needed
Fund Accounting, Expense Management, Financial Operations, Microsoft Excel, Analytical Thinking, Financial Data Interpretation, Professional Communication, Process Improvement, Collaboration, Budgeting
Specialization
Candidates must have a Bachelor's degree in Accounting, Finance, or a related field and at least 2 years of experience in fund accounting or financial operations. Proficiency in Microsoft Excel and a strong understanding of fund structures and regulatory requirements are required.
Experience Required
Minimum 2 year(s)
Kwalifikowany Pracownik Ochrony Galerii w Centrum Warszawy (K/M) at Securitas USA Corporate Services
Wilanów, Holy Cross Voivodeship, Poland - Full Time
Skills Needed
Physical Security, Intervention Actions, Patrolling, Emergency Response, Security Supervision, Observation
Specialization
Candidates must be registered as Qualified Physical Security Workers and have a clean criminal record. Physical fitness and the ability to perform duties in a standing and moving capacity are essential.
Service Technician at Konecranes
Wrocław, Lower Silesian Voivodeship, Poland - Full Time
Skills Needed
Electrical Troubleshooting, Lifting Equipment Maintenance, 3 Phase Motors, Frequency Converters, Control Systems, Working At Heights, Technical Consulting, Customer Relationship Management, Technical Documentation
Specialization
Requires a minimum of secondary electrical education and experience with drive devices and control systems. Must hold a valid SEP certification up to 1 kV and a Category B driver's license.
Experience Required
Minimum 2 year(s)
SPRZEDAWCA / SPRZEDAWCZYNI JYSK Sierpc 1/2 ETATU (2550 PLN) at JYSK
Sierpc, Masovian Voivodeship, Poland - Full Time
Skills Needed
Sales, Customer Service, Teamwork, Communication, Merchandising, Inventory Management, Relationship Building, Initiative
Specialization
Seeking sales-oriented individuals with strong communication skills and a commitment to high-quality customer service. Candidates must be flexible with working hours, including Saturdays and trading Sundays.
Business Intellignece Expert with QlikView - Freelance, part-time at Netguru
, , Poland - Full Time
Skills Needed
Qlikview, Data Analysis, Bi Solution Migration, Bi Consulting, English Proficiency
Specialization
Candidates must have proven expertise in QlikView and experience with BI migrations. They must be located within the European Union and possess a good command of written and spoken English.
Experience Required
Minimum 5 year(s)
HR Intern at GATES CORPORATION
Legnica, Lower Silesian Voivodeship, Poland - Full Time
Skills Needed
Hr Administration, Onboarding, Internal Communication, Employee Documentation, Ms Excel, Ms Powerpoint, Organizational Skills, English Proficiency, Polish Proficiency
Specialization
Candidates should be students or graduates in HR, Business Administration, Psychology, or a related field. Fluency in both Polish and English (minimum B1) and proficiency in MS Office are required.
Staff I Product Manager at Blackline Systems Corporation
Krakow, Lesser Poland Voivodeship, Poland - Full Time
Skills Needed
Product Management, Project Management, Agile Methodologies, Scrum, Kanban, Roadmap Development, Feature Design, Stakeholder Management, Market Research, Competitive Intelligence, B2b Product Management, Enterprise Application Business, Analytical Skills, Problem Solving, Communication, Collaboration
Specialization
Requires 6+ years of product management experience, with at least 4 years in enterprise applications and a bachelor's degree or equivalent experience in accounting. Proficiency in Agile methodologies and deep familiarity with Office of Finance transactional systems are essential.
Experience Required
Minimum 5 year(s)
Płatny staż w dziale IT - Administrator CAD/PLM (k/m) at Bosch Group
Warsaw, Masovian Voivodeship, Poland - Full Time
Skills Needed
Cad Administration, Plm, Ai Integration, Server Administration, Powershell, Bash, C++, C#, Python, Autocad, Inventor, Vault, Analytical Thinking, English Proficiency
Specialization
Candidates should be students of IT, mechanical engineering, or related fields with an analytical approach to problem-solving. Basic knowledge of CAD tools, scripting (PowerShell/Bash), and English communication skills are required.
Housekeeping Supervisor at Radisson Hotel Group
Gdansk, pomorskie, Poland - Full Time
Skills Needed
Teamwork, Communication, Attention To Detail, English Language, Personal Culture, Problem Solving, Leadership, Hospitality Management
Specialization
Requires at least 2 years of experience in a similar role or the hospitality industry. Candidates must possess strong communication skills, English proficiency, and a positive 'Yes I Can!' attitude.
Experience Required
Minimum 2 year(s)
Lead Consultant with Hungarian at ADP
Warsaw, Masovian Voivodeship, Poland - Full Time
Skills Needed
Sap Payroll, Kronos/Workforce Manager, Client Consultation, Business Blueprinting, Agile Methodology, Project Management, Quality Assurance, Data Mapping, User Acceptance Testing, Mentoring, Technical Documentation, Risk Management, Analytical Thinking, Time Management, Microsoft Visio, Stakeholder Management
Specialization
Candidates must have a Bachelor's degree and configuration experience in SAP Payroll or Kronos/Workforce Manager across multiple countries. Strong consulting skills and the ability to handle multiple client projects simultaneously are required.
Experience Required
Minimum 5 year(s)
Senior AI Engineer (All Genders) at zooplus SE
Krakow, Lesser Poland Voivodeship, Poland - Full Time
Skills Needed
Python, Backend Engineering, Llm Application Development, Prompt Engineering, Api Design, Ai Observability, Ai Safety, Azure Openai, Openai, Bedrock, Langchain, Rag, Graph Databases, Infrastructure As Code, Java, Kotlin
Specialization
Requires strong Python backend engineering skills and proven experience shipping LLM-powered applications to production. Candidates should be proficient in prompt engineering, API design, and AI safety controls.
Experience Required
Minimum 5 year(s)
Senior Python Developer at Endava
Gdansk, Pomeranian Voivodeship, Poland - Full Time
Skills Needed
Python, Django Rest, Flask, Fastapi, Sql, Git, Aws, Azure, Gcp, Agile, Scrum, Kanban, Ci/Cd, Rest, Json, Oop
Specialization
Requires over 5 years of Python experience and a mandatory background in Capital Markets or Financial Services. Candidates must be proficient in architectural patterns, cloud platforms, and have upper-intermediate English skills.
Experience Required
Minimum 5 year(s)
Junior Claims Enforcement Specialist at UniCredit
Warsaw, Masovian Voivodeship, Poland - Full Time
Skills Needed
Documentation Handling, Debt Enforcement, Case Management, Teamwork, English B2, Polish C1, Office Administration, Reporting, Analysis, Self Organization
Specialization
Candidates need at least one year of office experience in document handling and registration. Proficiency in English (B2) and Polish (C1) is required, along with a focus on accuracy and results.
Talent Acquisition Specialist at Colibrix One
Warsaw, Masovian Voivodeship, Poland - Full Time
Skills Needed
End To End Recruitment, Candidate Sourcing, Interviewing, Workable Ats, Linkedin Recruiter, Stakeholder Management, Offer Negotiation, Reference Checks, Employer Branding, Data Handling, Russian Language, English Language
Specialization
Requires proven experience in talent acquisition, preferably within the fintech or iGaming sectors, and knowledge of EU markets. Fluency in Russian and professional proficiency in English are mandatory.
Experience Required
Minimum 2 year(s)
Pracownik/Pracowniczka Sklepu (niepełny etat) at Wheelhouse East Inc
Jabłonna, Łódź Voivodeship, Poland - Full Time
Skills Needed
Customer Service, Cashier Operations, Merchandising, Teamwork, Time Management, Polish Language Proficiency, Attention To Detail
Specialization
Candidates should be willing to work in shifts and weekends with a strong commitment to teamwork and accuracy. While not mandatory, one year of professional experience and sanitary-epidemiological certifications are preferred.
Platform Engineer / 1 at Inetum
Lublin, Lublin Voivodeship, Poland - Full Time
Skills Needed
Linux, Bash, Git, Puppet, Ansible, Tcp/Ip, Dns, Bgp, Containerization, Tomcat, Nginx, Haproxy, Ipvs, English, Polish, Analytical Thinking
Specialization
Candidates must be proficient in Linux, Bash scripting, and networking concepts, with experience in configuration management tools like Puppet or Ansible. Fluency in both English and Polish is required, while certifications in RHEL or ITIL are considered a plus.
Experience Required
Minimum 2 year(s)
Koordynator ds. Marketingu (K/M) at METRO/MAKRO
Warsaw, Masovian Voivodeship, Poland - Full Time
Skills Needed
Hr Administration, Personnel Documentation Management, Payroll Support, Ms Office, English Communication, Sap Hr, Oracle, Employee Benefits Administration
Specialization
Candidates need at least one year of experience in a similar HR role and proficiency in MS Office. Communicative English and familiarity with SAP HR or Oracle systems are highly valued.
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