Mid Level Python Developer jobs in Warsaw – Page 4 | RoboApply Jobs

Mid Level Python Developer jobs in Warsaw· Page 4

Results 61–80 of 422 for “Mid Level Python Developer” in Warsaw.

422 jobs found

61 - 80 of 422 Jobs
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Sperasoft logo
Full-time|On-site|Warsaw, Masovian Voivodeship, Poland

Sperasoft is in an exciting phase of growth, and we are seeking a talented and seasoned Lead Level Artist to enhance our existing environment art team. We have established a strong foundation, and we need a creative leader who can elevate the quality of our work through both their contributions and by inspiring team members around them.This role goes beyond …

Apr 13, 2026
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hyperexponential logo
Full-time|On-site|Warsaw

Join hyperexponential as an Associate Software EngineerAt hyperexponential, we are revolutionizing the insurance industry with our innovative AI-powered platform, which supports critical decision-making in a $7 trillion market. Our platform is designed to enhance how insurers evaluate risks and determine pricing, ensuring that pivotal choices—like the successful launch of rockets or the deployment of autonomous vehicles—are made with confidence.Traditionally, insurance relies on outdated methodologies for making billion-dollar decisions. We aim to change that by integrating data, artificial intelligence, and expert insights to streamline the process from submission to decision, enabling insurers to act swiftly and intelligently.Backed by prestigious investors such as a16z, Highland Europe, and Battery Ventures, we are on a global expansion trajectory. Our platform has gained the trust of nearly 50 of the world's largest insurers, experiencing zero churn and facilitating billions in premiums through our system.What began as a singular product has rapidly transformed into a robust, multi-product platform that enhances every aspect of pricing and underwriting. AI is central to our operations—whether it's developing the world's first domain-specific AI peer programmer for insurance or creating workflows that redefine industry standards.At hyperexponential, it’s not just about titles; it’s about the impact and the challenges you tackle. You will collaborate with peers who inspire you to do your best work in an environment built to last.If this resonates with you, we invite you to join us in shaping the future.About the Kernel TeamThe Kernel team is integral to hyperexponential’s platform, responsible for the execution engine that processes pricing models with safety, reliability, and scalability. Our work supports the critical decisions made by insurers, ensuring that complex pricing logic operates seamlessly while also maintaining the performance and reliability essential for mission-critical underwriting workflows.In this role, you will contribute to the Kernel team by developing well-defined features, tests, and internal tools while gaining a comprehensive understanding of how the execution engine functions from start to finish. You will collaborate closely with seasoned engineers to grasp the architecture, diagnose issues, and gradually take on more responsibility.

Apr 2, 2026
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TSMG logo
Contract|On-site|Warsaw

The Data Center Coordinator plays a pivotal role in managing electronic devices and operating servers on a daily basis while overseeing data transfer operations both regionally and globally. Key responsibilities include monitoring the availability of physical assets, ensuring compliance with operational processes, managing inventory through dashboards, and collaborating with software, hardware, and logistics teams.This position demands proactive communication with a diverse range of stakeholders to ensure efficient execution of tasks, address customer inquiries, and provide regular updates on project status. The coordinator will also monitor cloud-based data transfer processes, identify discrepancies, perform routine system checks, and escalate issues when required.As a central point of contact, the Data Center Coordinator will work closely with international teams to standardize global processes, facilitate discussions, and anticipate business needs. The role requires strong problem-solving skills, the ability to prioritize tasks based on urgency, and occasionally attending meetings outside standard working hours.

Jan 29, 2025
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Joinus logo
Full-time|On-site|Warsaw

Joinus is seeking a talented and motivated Mid-Level Facebook Media Buyer to join our dynamic marketing team in Warsaw. In this role, you will be responsible for developing, executing, and optimizing Facebook advertising campaigns that drive engagement and conversions. You will work closely with cross-functional teams to align advertising strategies with overall business goals.

Dec 16, 2024
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Nord Security logo
Full-time|On-site|Warsaw

Join our dynamic Marketing department at Nord Security, where we strive to ignite enthusiasm for our innovative products. With over twenty specialized teams, our talented and analytical workforce is dedicated to driving customer acquisition and maximizing our monetization strategies.Main ResponsibilitiesCompose compelling and effective copy aimed at conversion for various platforms including landing pages, paid advertisements, app store listings, newsletters, and social media channels.Collaborate closely with the Conversion Rate Optimization (CRO) team to create copy variations for A/B testing and website experimentation.Utilize a data-driven mindset: Analyze qualitative and quantitative data to determine the most effective tone for headlines, whether engaging or straightforward.Implement SEO strategies: Develop content that is optimized for search engines while maintaining a natural and engaging narrative.Manage multiple projects efficiently in a fast-paced environment, ensuring timely delivery and prioritization of tasks.Stay informed on the latest trends in cybersecurity and competitor strategies to keep our messaging relevant and ahead of the curve.Core RequirementsFluent in English with native-level proficiency.Minimum of 2 years experience in conversion copywriting, particularly in consumer technology preferred.A focus on performance: You excel in concise writing that compels action over elaborate prose.Ability to manage stakeholders effectively, transforming vague requests into clear value propositions.Understanding of testing methodologies: Familiarity with A/B testing processes and the ability to pivot based on data insights.Versatility in writing styles: Able to adapt quickly to different tones and formats while working independently and collaboratively.Resilience: Capable of handling constructive feedback and iterating rapidly.Strong analytical skills: A mix of creative problem-solving and practical reasoning.

Apr 12, 2026
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Telemedi logo
Full-time|Remote|Remote — Warsaw, Masovian Voivodeship, Poland

Welcome to the new era of software development at Telemedi! We are at the forefront of transforming the development process. By harnessing cutting-edge technologies combined with technical expertise and exceptional commitment, we strive to build more, faster, and better than ever before.Our developers utilize Cursor AI (cursor.com) — an IDE that completely changes the programming paradigm. In just a few hours, we accomplish what would take other developers several days. We expect you to do the same.Join us if:You are eager to work in a product-driven company where your contributions lead to tangible results.You thrive in a dynamic environment filled with activity.You take ownership of your work and the team’s outcomes.You embrace challenges and can navigate complex applications with ease.You enjoy understanding the business side and communicate effectively across teams.You create high-quality applications and features quickly and efficiently.You are confident in your technical skills and can enhance application standards, including improving legacy code.You are proactive in optimizing processes within your surroundings.Your responsibilities include:Participating in the development of IT solutions from start to finish (here, IT is not a “silo”).Enhancing web applications (adding new features, bug fixing, refactoring).Contributing to the design of new solutions and development infrastructure.Engaging in code reviews and ensuring the quality of created solutions.Constantly raising the standards of development processes.Collaborating closely with the team (Developers, PMs/POs, QAs).Maintaining high programming quality and a swift task delivery pace (both individually and as a team).Requirements:Experience with modern AI tools in programming (such as Cursor/Windsurf - GitHub Copilot is not sufficient). While prior experience isn't mandatory, a solid understanding and practice with the paradigm are essential.A minimum of 3 years of commercial experience working with PHP, specifically with Symfony or a similar framework.A minimum of 1 year of commercial experience with React.js framework, including some experience with TypeScript.Practical knowledge of design patterns and best programming practices (SOLID, KISS, DRY, etc.).Proficiency with version control systems, such as Git.A sense of ownership, independence, and responsibility for assigned tasks.Attention to detail and diligence in work (both individually and in a team).Fluency in Polish.Preferred qualifications:Familiarity with performance and optimization issues related to web applications.

Jan 14, 2025
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Tietoevry logo
Full-time|On-site|Warsaw

Role Overview Tietoevry is looking for an Automation Tester with Python skills to join the team in Warsaw. This role focuses on strengthening software testing by designing and building automated test solutions. The work supports product quality and performance across projects. What You Will Do Develop and maintain automated test scripts using Python Work closely with team members to plan and execute testing strategies Contribute to the improvement of testing processes and tools About the Team Collaborate with colleagues who value quality and continuous improvement. The team aims to advance testing practices and deliver reliable software.

Apr 14, 2026
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Larian Studios logo
Full-time|On-site|Warsaw

Larian Studios creates acclaimed role-playing games, including Baldur’s Gate 3 and Divinity: Original Sin 2. The team is recognized for its focus on crafting memorable experiences for players. Role overview The Warsaw studio is growing and seeks a Level Designer to join the team. This position involves working on new projects and shaping the environments and experiences that define Larian’s next titles. What you will do Contribute to the design and creation of levels for upcoming RPGs Work closely with other team members to build engaging worlds Help define the next chapter in Larian’s portfolio Location This role is based in Warsaw.

Apr 22, 2026
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Nordsec logo
Full-time|On-site|Warsaw

Join NordLayer, where we are revolutionizing cybersecurity for modern businesses.Our dynamic platform is designed to empower teams while alleviating security concerns. Trusted by over 11,000 global organizations, NordLayer seamlessly integrates with any technology stack, ensuring user protection across borders.Your role: As a DevOps Engineer, you will play a pivotal part in securing the infrastructure and enhancing CI/CD processes within our organization. Work closely with seasoned engineers and cross-functional teams to adopt DevOps best practices, support scalable cloud solutions, and optimize software delivery. This role offers a fantastic opportunity to advance your career in a vibrant environment dedicated to infrastructure automation and innovation.

Jan 26, 2026
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Veeam Software logo
Full-time|On-site|Warsaw, Poland

Join Veeam Software as a Junior/Middle QA Engineer and be part of a dynamic team dedicated to ensuring the highest quality of our innovative software solutions. In this role, you will collaborate with developers and product teams to identify and resolve issues, contributing to the continuous improvement of our products.

Apr 2, 2026
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Nordsec logo
Full-time|On-site|Warsaw

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.

Apr 28, 2026
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Nord Security logo
Full-time|On-site|Warsaw

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

Apr 28, 2026
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SoftwareMind logo
Full-time|On-site|Warsaw

Role overview This Level 3 Application Support Engineer position at SoftwareMind centers on supporting complex software applications for clients in the telecommunications industry. Based in Warsaw, the role addresses advanced technical issues and helps maintain strong performance and reliability standards across client systems. What you will do Investigate and resolve challenging application problems reported by telecommunications clients Collaborate with development teams to identify root causes and implement effective solutions Support ongoing service delivery by ensuring applications operate smoothly and efficiently Impact This role plays a key part in delivering dependable software solutions for telecommunications clients, directly supporting the quality and reliability of their services.

Apr 28, 2026
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Nord Security logo
Full-time|On-site|Warsaw

Join Nord Security in Shaping a Safer Cyber Future!At Nord Security, we empower individuals and businesses to reclaim their online security, privacy, and data. Our innovative solutions range from VPN services to password management, threat intelligence, and travel eSIMs, all designed to address complex challenges and earn the trust of millions across the globe.In this role, you will play a vital part in helping people take ownership of their online lives.Main ResponsibilitiesDesign, develop, and maintain secure infrastructure and tools that facilitate agile software development and automated releases.Document DevOps processes and establish standards to guide operations and maintenance.Ensure secure designs for platforms, infrastructure, and delivery mechanisms.Automate security controls across cloud environments, enhancing policy enforcement and container security while minimizing manual efforts.Collaborate with Security and Platform teams to bolster security measures.Identify and automate manual processes for increased efficiency.Mentor fellow engineers, fostering a robust technical security culture and establishing a strong Web Security team across our product offerings.Lead initiatives for improving cloud security posture using CSPM tools, focusing on automation and remediation workflows.Implement supply-chain security controls and Kubernetes security guardrails.Enable and manage cloud-native security controls across CI/CD pipelines and Kubernetes environments.

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

Join Nord Security in Shaping a Safer Cyber Future!At Nord Security, we are dedicated to empowering individuals and businesses to reclaim control over their online security, privacy, and data. Our innovative solutions, ranging from VPNs and password managers to threat intelligence and eSIMs for travel, are trusted by millions around the globe.In this exciting role, you will play a crucial part in helping people navigate their digital lives securely.Key ResponsibilitiesBring a human touch to all communications, showcasing authenticity to engage employees and attract top talent in Poland.Implement a comprehensive, multi-channel employer branding strategy to enhance awareness and engagement for Nord Security within Poland.Plan and execute daily activities that align with our branding objectives.Collaborate closely with internal designers, copywriters, and production teams to create compelling communication narratives.Generate high-quality initiatives to promote the growth of our employer brand through various internal and external channels.Conduct in-depth research on competitors, employees, and brand awareness, focusing on growth opportunities.Oversee participation and budget allocation for various technology and talent conferences in Poland, ensuring a significant presence.Prepare and present reports to analyze and monitor branding progress.

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

Join Nord Security in Shaping a Safer Cyber Future!At Nord Security, we empower individuals and businesses to reclaim their online security, privacy, and data. Our innovative products, including VPNs, password managers, and threat intelligence solutions, are trusted by millions globally.As our digital lives expand, your contribution will help users take ownership of their online experience.We believe that innovative web technologies can optimize user experience. Our success hinges on professional development, initiative, and a profound understanding of our users and their challenges.We are seeking a talented Data Analyst to join our Product Team in the web department. You will play a pivotal role in developing cutting-edge user acquisition platforms that facilitate the discovery, learning, and purchasing of Nord Family products. Your expertise in data-driven insights will help identify opportunities and validate experiments, turning business challenges into sustainable, forward-thinking solutions.

Dec 10, 2025
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Nord Security logo
Full-time|PLN 14.5K/yr - PLN 20.7K/yr|On-site|Warsaw

Join Our Innovative Team at NordLayer!At NordLayer, we are revolutionizing cybersecurity, ensuring that businesses can scale securely. Our toggle-ready platform empowers modern teams to operate efficiently without the burden of security concerns. Trusted by over 11,000 companies across the globe, NordLayer seamlessly integrates with any tech stack to provide comprehensive user protection worldwide.Your Role: Play a vital role in safeguarding businesses and advancing network security solutions for the future.Key Responsibilities:Design, develop, and maintain automated end-to-end testing frameworks for both API and UI.Collaborate with the Test Automation team to enhance a shared testing library.Identify, document, and work with the engineering team to troubleshoot software defects.Partner closely with product, engineering, and QA teams to ensure top-notch product quality.

Apr 12, 2026
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inetum2 logo
Full-time|On-site|Warsaw

Join our dynamic team at Inetum2 as a Senior Fullstack Software Engineer, where you'll be at the forefront of developing innovative software solutions. In this role, you will leverage your expertise in both frontend and backend technologies to build scalable applications that enhance user experience. Collaborate with cross-functional teams to design, develop, and maintain high-quality software products.

Sep 24, 2025
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Sperasoft logo
Full-time|Remote|Remote — Warsaw, Masovian Voivodeship, Poland

Sperasoft seeks a Rendering Developer to strengthen the visual quality of its games. This is a remote role based in Warsaw, Masovian Voivodeship, Poland. The position centers on building advanced graphics engine features for both PC and console titles. Regular collaboration with engineers, artists, game designers, and QA specialists is part of daily work. Key responsibilities Design and develop graphics engine components for PC and console platforms. Implement and optimize rendering systems, addressing both high-level and low-level needs. Write clean, efficient, and maintainable C++ code. Contribute to technical decisions and influence the rendering architecture. Participate in all stages of game development, from prototyping through release. Mentor and support other engineers as needed.

Apr 23, 2026

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