Fullstack Software Engineer Senior Level jobs in Warsaw – Page 40 | RoboApply Jobs

Fullstack Software Engineer Senior Level jobs in Warsaw· Page 40

Results 781–800 of 813 for “Fullstack Software Engineer Senior Level” in Warsaw.

813 jobs found

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WPP Media logo
On-site|On-site|Warsaw, Poland

Join WPP Media as a Senior Paid Social Media Specialist, where you'll harness your expertise to drive impactful social media campaigns across a global platform. Collaborating with diverse teams in the U.S., Europe, and Asia, you will play a crucial role in launching and optimizing campaigns on platforms such as Meta, TikTok, Snapchat, and Pinterest. Your res…

Feb 5, 2026
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Radisson Hotel Group logo
Full-time|On-site|Warszawa

We are currently seeking a Senior Technical Department Employee to join our dynamic team at the Radisson Blu Sobieski Hotel in Warsaw!Our Technical Department is dedicated to ensuring that everything operates smoothly, delivering experiences that exceed expectations and creating unforgettable moments for our guests. This role encompasses much more than just changing light bulbs! Your main responsibilities will include:Executing minor renovation and maintenance tasks (e.g., ongoing maintenance and minor repairs within the building, troubleshooting plumbing issues)Diagnosing faultsConducting periodic technical assessments of the building's conditionRectifying identified irregularitiesPreparing reportsCollaborating with other departments

Feb 27, 2026
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CD Projekt Red logo
Full-time|On-site|Warsaw

Join CD Projekt Red as a Senior Shared Technology Quality Assurance Analyst and play a crucial role in ensuring the quality and efficiency of our innovative projects. You will work closely with cross-functional teams to design, implement, and execute test plans while contributing to the development of cutting-edge gaming technologies.

Mar 2, 2026
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Nordsec logo
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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SKELAR logo
Full-time|On-site|Kyiv, Lviv, Warsaw

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...

Apr 6, 2026
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MicroStrategy Incorporated logo
Full-time|On-site|Warsaw

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.

Apr 9, 2026
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Nord Security logo
Full-time|On-site|Warsaw

At Saily, we are on a mission to simplify secure data access for travelers globally.Forget about roaming fees and cumbersome SIM cards. Experience fast, secure mobile data in over 200 countries with the team behind Lonely Planet's leading eSIM—engineered for adventurers and powered by NordVPN.Your role? Enabling seamless connectivity for individuals on the go.Key ResponsibilitiesIndependently plan and forecast PPC initiatives within your domain.Ensure exceptional quality in campaign setups and all utilized materials.Conduct regular data quality checks across tracking points and promptly address any discrepancies with relevant teams.Oversee multi-team projects by crafting and managing PPC campaign strategies.Prioritize tasks proactively, aligning deadlines and deliverables with business objectives while mentoring junior staff.Monitor daily performance through various platforms including Google Analytics and Looker across all team activities.Deliver insightful reports on key metrics regularly and on demand, tailoring analysis to stakeholder needs.Stay updated on PPC and marketing trends, and share actionable insights with the team.

Apr 12, 2026
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Nord Security logo
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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fusionconsulting logo
Full-time|On-site|Warsaw

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.

Mar 22, 2026
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margo-group logo
Full-time|On-site|Warsaw

About margo-group margo-group is a global company focused on commerce media. The team builds technology that connects shoppers and brands across the open internet, using commerce intelligence and AI-driven decision-making. The company values different perspectives, encourages ongoing innovation, and works to create an inclusive workplace where everyone can help shape the future of digital commerce.

Apr 17, 2026
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Ergomed logo
Full-time|On-site|Warsaw

Join Ergomed as a Senior Specialist/Manager in Regulatory Intelligence and Analytics, where you will play a pivotal role in shaping our regulatory strategies and leveraging analytics to ensure compliance and drive innovation. You will work closely with cross-functional teams to analyze regulatory trends, develop insights, and support our global operations.

May 1, 2026
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AECOM logo
Full-time|On-site|Warsaw

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.

Mar 24, 2026
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Superhuman logo
Full-time|Hybrid|Warsaw, Poland

Superhuman provides a vibrant hybrid work environment for this position. This adaptable model allows team members to enjoy focused work time while also engaging in face-to-face collaboration, nurturing trust, innovation, and a strong team culture. Applicants for this role must reside in Warsaw. About Superhuman Superhuman, which now encompasses Grammarly, is a cutting-edge AI productivity platform dedicated to unleashing the superhuman potential within individuals. Our suite of applications and agents integrates with over one million platforms and services, enhancing productivity wherever users work. Our offerings include Grammarly's writing enhancement tools, Coda's collaborative workspaces, Mail's inbox management, and Go, our proactive AI assistant that intuitively understands context to provide timely assistance. Founded in 2009, Superhuman is committed to helping over 40 million users, 50,000 organizations, and 3,000 educational institutions worldwide eliminate mundane tasks and concentrate on what truly matters. Discover more at superhuman.com and explore our core values here. The Opportunity To drive our ambitious objectives forward, we are in search of a Technical Support Specialist to become an integral part of our Support Engineering team within the Customer Care department. This role will be pivotal in revolutionizing the customer experience through innovative support strategies. In this capacity, you will significantly contribute to the enhancement of Superhuman's and Coda's product offerings while retaining and expanding our revenue-generating customer base by immersing in the technical landscape. As a Technical Support Specialist, your responsibilities will include: Providing timely, empathetic, and solution-oriented support, placing user needs at the forefront of every interaction. Assisting with inquiries regarding accounts, subscriptions, and products, ensuring accuracy, efficiency, and a seamless user experience. Troubleshooting technical challenges related to Superhuman's and Coda’s products, guiding users toward effective resolutions via email and live chat. Reproducing and escalating technical issues to engineers, contributing to the overall improvement of the user experience. Occasionally organizing calls with Enterprise clients to diagnose and resolve complex issues associated with SSO, SCIM, or the enterprise deployment of Superhuman's products or Coda Docs. Delivering a smooth, frustration-free support experience that enhances user satisfaction and loyalty. Collaborating with cross-functional teams to refine support processes, share insights, and drive product enhancements.

Mar 20, 2026
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NRB - Trasys International logo
Contract|Hybrid|Warsaw, Mazowieckie, Poland

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.

Feb 16, 2026
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Sperasoft logo
Full-time|On-site|Warsaw, Masovian Voivodeship, Poland

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.

Mar 9, 2026
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Unit8 logo
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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Nordsec logo
Full-time|On-site|Warsaw

Join Saily, where we simplify the process of obtaining secure data plans for travelers.Experience no roaming fees and eliminate the need for plastic SIM cards. With our service, enjoy fast, secure mobile data in over 200 countries. Be a part of the team behind Lonely Planet's leading eSIM, crafted for adventurers and powered by NordVPN.Your contribution? Ensuring individuals remain securely connected, no matter their location.

Mar 6, 2026
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autodoc3 logo
Full-time|On-site|Warsaw

Join autodoc3 as a Senior Customs Classification Specialist and play a crucial role in ensuring compliance with international trade regulations. You will be responsible for classifying products accurately for customs purposes, advising on duty rates, and collaborating with various departments to facilitate smooth customs processes. Your expertise will help us enhance our logistics operations and minimize delays.

Mar 24, 2026
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PayU logo
Full-time|On-site|Poznań, Warsaw, Poland

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.

Feb 3, 2026
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Nord Security logo
Full-time|On-site|Warsaw

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.

Apr 12, 2026

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