Senior Python Engineer (CX) at altersolutions | Warsaw

Join Netguru, a leading partner in digital commerce, as we empower top-tier brands to modernize their B2B solutions, marketplaces, and retail ecosystems. Since our inception in 2008, we have been at the forefront of technology innovation, utilizing AI-driven personalization and exceptional engineering and design expertise. As a certified B Corporation®, we proudly serve renowned clients such as IKEA, VW, OLX, Delivery Hero, Żabka, Wolt, Careem, and Vinted.What to Expect as a Netguru Freelancer:At Netguru, we offer the flexibility you crave. You have the autonomy to decide when, where, and how you work on projects, ensuring a perfect fit with your skills. We provide numerous opportunities across various industries, allowing you to enhance your experience and expand your skill set.Furthermore, our freelancers can enjoy the perks of full-time collaboration, becoming integral members of our team.Ready to leave your mark? Join us in creating beautiful software that makes a difference.Location: Preferably Warsaw, PolandWork Model: Hybrid - At least once a week at the Client's office in WarsawContract Type: B2BCompensation: Up to 100 PLN/h (NET)Contract Duration: Start Date: 13/04/2026, End Date: 09/10/2026Language Requirement: Polish C1

Company Overview:Twisto, a Param Company, is a forward-thinking financial services provider revolutionizing payment methods in Central and Eastern Europe. Our innovative app empowers users with complete control over their financial transactions, enabling them to defer or split purchases, share expenses, pay invoices, and shop using both virtual and physical cards. We are committed to providing transparency, convenience, and competitive exchange rates both locally and globally. Our mission is to continuously innovate and expand our offerings to simplify everyday financial tasks for our customers.Your Future Responsibilities:We are seeking a dedicated Python Engineer to join our dynamic team! In this role, you will collaborate with Engineering Managers, Product Analysts/Managers, and fellow engineers to enhance user stories, define requirements, and assist in prioritizing and executing tasks throughout the software development life cycle.Key Responsibilities:Design, develop, and maintain Python applications with an emphasis on writing clean, reliable, and maintainable code.Transform business requirements into viable technical solutions.Implement new features, conduct code reviews, provide technical support, and resolve bugs.Contribute to system architecture design and ensure that technical documentation remains current.Engage actively in code reviews and promote high engineering standards within the team.Effectively communicate with stakeholders and team members regarding technical solutions and project updates, both verbally and in writing.Our technology stack is constantly evolving, but currently includes the following tools: Languages: Python.Tools: Kubernetes, Terraform, Docker, AWS Cloud, Grafana, Firebase.Methodologies: Agile, Scrum; we operate on 14-day sprints, with stand-ups conducted online via Slack.

We are seeking a talented Python Developer to join our dynamic team at SoftwareMind in Warsaw. As a mid-senior level developer, you will be instrumental in designing and implementing innovative solutions that leverage Python technologies. You will collaborate with cross-functional teams to deliver high-quality software that meets our clients' needs.If you are passionate about software development and eager to work in a fast-paced environment, we want to hear from you!

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.

Role overview SoftwareMind seeks a Python Developer with an infrastructure focus to support the systems behind core software products. The position centers on building and maintaining technical foundations that keep products reliable and integrations seamless. Collaboration is key in this role. You will work alongside teams from different parts of the company to ensure infrastructure remains strong and operations run without disruption. What you will do Develop and maintain infrastructure using Python Support systems that enable core product functionality Work with other teams to ensure smooth integrations Location This position is based in Warsaw.

About Us:Planner 5D is a worldwide leader in home design, connecting over 100 million users across 230 countries (including a couple from Antarctica!). Our platform simplifies the home renovation journey from initial concept to final execution, making the process remarkably straightforward with our innovative software. You don't need to be a professional designer to transform your home or workspace; we empower everyone to realize their dream spaces through accessible design tools.Our cross-platform capabilities span Web, iOS, Android, Windows, and MacOS, ensuring seamless synchronization for all users. Planner 5D is not just software; it’s a thriving community of dedicated professionals from diverse backgrounds, all working together across various time zones to revolutionize the home design industry.We are continually on the lookout for talented individuals who are passionate about taking ownership and driving innovation within our expanding suite of tools. Join us as we shape the future of home design.We are currently seeking a Senior Python Engineer to join our dynamic team and contribute to building production-ready systems that will directly enhance our product offerings.

About WPP MediaWPP is the creative transformation company, harnessing creativity to shape a brighter future for our people, planet, clients, and communities. For further details, visit wpp.com.WPP Media operates as WPP’s global media collective, where we unify the best platforms, talent, and partnerships to unlock boundless growth opportunities in an ever-evolving media landscape. Visit wppmedia.com for more information.At WPP Media, we value the strength of our culture and our people, which empowers us to provide exceptional experiences for our clients and each other. In this role, you will play a vital part in upholding WPP and WPP Media’s core values:Be Extraordinary by Leading Collectively to Inspire Transformational Creativity.Create an Open environment by Balancing People and Client Experiences while Cultivating Trust.Lead Optimistically by Championing Growth and Development to Mobilize the Enterprise.Role Summary and ImpactAs a key member of the Global Operations Centre (GOC), you will collaborate with diverse teams across the United States, Europe, and Asia to deliver impactful solutions in a vibrant, multicultural setting. We are on the lookout for a skilled Backend Engineer to join our Data & Technology Solutions team. In this role, you will be essential in designing, developing, and maintaining scalable backend systems that drive our innovative marketing technologies, including the WPP Open AI platform. If you are passionate about crafting high-performance APIs, engaging with large datasets, and shaping the future of AdTech, we would love to connect with you.

softwaremind seeks a Senior Python Developer for its Warsaw office. This position centers on designing and building software solutions in Python, with a strong emphasis on teamwork and collaboration across different disciplines. The goal is to deliver applications that align with client needs and project objectives. Key responsibilities Develop and implement software solutions using Python Collaborate with cross-functional teams to deliver applications Mentor junior developers and share technical expertise Contribute to improvements in development processes and practices Requirements Extensive experience in Python programming Ability to work effectively with colleagues from diverse backgrounds Interest in mentoring and supporting less experienced team members Dedication to producing high-quality software Location This role is based in Warsaw.

Transform your passion for luxury into a professional opportunity. Explore the realm of prestigious brands and make a tangible impact in the fashion, beauty, jewelry, and automotive industries. Join CXG, a global leader in customer experience, and collaborate with luxury icons such as Louis Vuitton, Dolce & Gabbana, Bentley, Prada, Versace, and many more.About the Role:As a luxury brand evaluator, you will step into the world of exclusive boutiques to discreetly assess customer service quality and provide critical feedback that helps brands enhance their offerings. Your insights will shape the future of luxury—whether you're visiting boutiques, shopping online, or returning products.• Flexibility - each visit lasts about 20 minutes, allowing you the freedom to complete multiple assignments.• Frequent opportunities - undertake several missions each month and work with some of the world's most prestigious brands.Our Luxury Partners:Fashion and Haute CoutureLouis Vuitton, Saint Laurent, Balenciaga, Versace, Prada, Moncler, Fendi, Bottega Veneta, Ferragamo, COS, Bally, Dolce & GabbanaJewelry and WatchesTiffany & Co., De Beers, Piaget, IWC, Boucheron, PandoraCosmetics and SkincareGuerlain, Sephora, L’Oréal, GivenchyAutomotiveBentley, Jaguar, Genesis, Maserati, VespaYour Responsibilities: Select assignments – match missions to your preferences and interests. Visit luxury boutiques or evaluate online – engage in conversations with store staff or assess online shopping experiences. Pay close attention – analyze the ambiance, service quality, and overall customer experience. Provide honest feedback – complete surveys on our platform and share your insights. Benefits:• Collaborate with exclusive brands across various industries.• Flexibility – complete assignments according to your schedule.• Compensation for your time and opinions, as well as the possibility of reimbursement for purchases.• User-friendly platform for managing missions and providing feedback.How to Join the CXG Community: Register: Create an account at live.cxg.com and confirm your email. Complete your profile: Fill in all details and verify your profile. Obtain certification: Pass a general certification test to access missions. Apply for missions: Browse and select assignments from prestigious brands. Start evaluating: Influence the shaping of the future luxury market. Compensation:• Evaluations without purchase: Compensation details to be specified...

Engage in the development and maintenance of AlgoSec applications.Implement automation using Python and Ansible for enhanced operational efficiency.

Location: Poland About Us: RTB House stands at the forefront of marketing technology, delivering cutting-edge solutions to leading brands and agencies around the globe. Our proprietary ad-buying engine is the world's first to utilize Deep Learning algorithms exclusively, empowering advertisers to achieve remarkable results at every stage of their marketing funnel. We are on the lookout for a Backend Python Developer to become an integral part of our internal team at RTB House. In this role, you will engage in the development of applications and tools that directly enhance our real-time bidding operations. Collaborating with seasoned engineers and product teams, this position offers a fantastic opportunity for developers eager to expand their skill set, tackle real-world challenges, and create robust software that makes a tangible impact.

Join Our Team at Visit.org!Are you a dynamic and enthusiastic individual looking to make a difference? Visit.org is seeking a dedicated Freelance In-Person Event Host based in Warsaw, Poland. In this role, you will lead engaging social impact events for our corporate partners, helping to foster meaningful experiences that benefit local communities.What Drives UsAt Visit.org, we believe in the power of collaboration and innovation. Our goal is to empower organizations and their employees to create lasting change through engaging activities. We are excited about tackling challenges creatively and making a real impact.About Visit.orgVisit.org is a pioneering enterprise SaaS company that enhances workforce engagement through meaningful purpose-driven initiatives. With our extensive content available in over 90 countries, we provide businesses with the tools they need to promote employee and client engagement. Join reputable clients like Colgate, ADP, IBM, and Adobe in transforming social responsibility into action.Your Role & Responsibilities:Lead interactive team-building activities that support a positive cause.Welcome and inspire participants while collaborating with nonprofits to facilitate impactful events.

About The Dot CollectiveWe are an innovative consultancy operating across the UK and EU, dedicated to engineering excellence and empowering individuals to create a meaningful impact.Our projects leverage modern technology stacks and are typically executed using agile scrum methodologies.About YouAre you driven by a passion for data and its transformative potential? Do you thrive on making significant contributions in a short time frame? If so, you may be the perfect fit for our team.

Join the forefront of digital security with Nord Security!As a part of our innovative team, you'll contribute to the development of cutting-edge tools like Threat Protection Pro and the NordLynx protocol, ensuring that millions regain control over their online privacy and security.Your Role: As a Senior Software Engineer, you will design and maintain services that enhance our Threat Intelligence capabilities.Main Responsibilities:Design, code, and maintain data curation and ingestion services for the Threat Intelligence team.Develop and implement architectural solutions for distributed computing pipelines and microservices.Participate actively in code reviews and knowledge sharing to uphold high technical standards.Create new services to ensure the availability of quality data feeds.Maintain coding standards and ensure your code is maintainable, readable, and secure.Encourage innovation and develop ideas that enhance our cybersecurity products.Provide technical leadership and mentorship to team members.

Join Visit.org as a Freelance Event Specialist in Warsaw, Poland, where you'll play a pivotal role in orchestrating in-person events that make a difference. We are seeking a dedicated, entrepreneurial, and experienced individual passionate about social impact and capable of thriving in a dynamic startup environment. This role will require you to manage logistics for exciting team-building activities that benefit local nonprofits, ensuring a meaningful experience for participants.Visit.org connects companies with curated social impact experiences across over 90 countries. We empower HR, CSR, and event leaders with scalable, culturally appropriate engagement opportunities that resonate with purpose-driven initiatives. Our esteemed clients include Colgate, Paramount, Visa, Ancestry, and Tommy Bahama, among others.

Join TransPerfect, a premier provider of tailored video game services, where we deliver a comprehensive suite of solutions such as translation, functional and localization game testing, certification testing, focus group and playtesting, player support and community management, cybersecurity and penetration testing, tool development, art design, game writing, GDPR consultancy, and voice-over recording. With a client roster comprising over 1000 renowned global game developers and publishers, we are dedicated to embracing the latest technological advancements while immersing ourselves in the vibrant gaming culture and trends.We are proud of our flexibility and commitment to providing thorough services, ensuring that our clients' games receive meticulous attention from initial concept through to launch and beyond. Our international offices enable us to cultivate an extensive understanding of all aspects of gaming culture. As passionate gamers ourselves, we channel our love for the industry into our work, equipping us with the vital insights needed to connect games with wider audiences around the globe.If you share our passion for gaming and are eager to collaborate with a dynamic team of professionals, we would love to hear from you!Position OverviewThe German Localization Games Tester is tasked with ensuring the linguistic accuracy and quality of localized content by conducting manual testing across various gaming platforms. You will collaborate with a game testing team to identify and rectify issues affecting game localization by making text modifications, documenting bugs, performing regression testing, and more.Key ResponsibilitiesConduct thorough testing of video games to pinpoint localization issues that may affect the overall user experience.Revise text files to rectify grammatical errors, spelling mistakes, consistency issues, mistranslations, and other linguistic challenges.Follow established Test Cases and/or Checklists to perform targeted testing and execute relevant testing procedures.Report and verify issues discovered during testing, utilizing various databases.Draft bug reports in adherence to company standards and client requirements.Collaborate as part of a team, sharing insights and testing information through designated communication channels.Fulfill any additional tasks as assigned within the project scope.

Join our dynamic team as an Italian Localization Games Tester in Warsaw! This freelance opportunity allows you to dive into the exciting world of video games while ensuring that every detail resonates with native players.About TransPerfect Games: We are a premier provider of tailored video game services, delivering a multitude of solutions such as translation, functional and localization game testing, certification testing, focus group and playtesting, player support, community management, cybersecurity, tool development, art design, game writing, GDPR consultancy, and voice-over recording. With a clientele that includes over 1,000 renowned global game developers and publishers, we are committed to enhancing the gaming experience for players worldwide.As a Game Localization QA Tester, your role will involve collaborating with development teams to identify and rectify issues in exciting titles ranging from indie gems to blockbuster AAA games. If you are enthusiastic about gaming and possess the skills to ensure linguistic accuracy and cultural relevance, we want to hear from you!

Location: Warsaw, Poland — Hybrid (4 days on-site / 1 day remote)Contract: B2B · 25–40 k PLN net / month + RSUsFresha: Innovating the Beauty & Wellness SectorBecome a part of Fresha, the premier marketplace platform revolutionizing the beauty and wellness industry on a global scale. With a network of over 120,000 businesses and 450,000 stylists who trust our platform, we've facilitated more than 1 billion appointments worldwide. Fresha provides an integrated platform for bookings, point-of-sale, marketing, and more, connecting consumers with local services.Your Role as a Backend EngineerAt Fresha, we harness the power of AI not merely as a coding assistant, but as a catalyst for feature delivery. We equip every engineer with cutting-edge tools (Claude, GitHub Copilot, Cursor) to eliminate technical burdens—allowing you to dedicate your efforts to delivering high-impact product features. We seek engineers who can adeptly utilize these tools to propel our 6-week development cycles, accelerating the transition from concept to code, while ensuring the technical integrity and security of the final user experience.Are you poised to make a tangible impact in a dynamic, self-directed environment? We invite you to join our exceptional cross-functional product team in Warsaw as a Backend Engineer.Key Responsibilities:* Collaborate intimately with Product, Design, Frontend, Infrastructure, and Mobile engineers to transition features from discovery to deployment and beyond.* Take ownership of features from concept to observability: encompassing technical design, implementation, testing, and deployment.* Design, develop, and sustain efficient, scalable, and robust Ruby/Elixir code.* Work within a polyglot technology stack (Ruby, Elixir, GraphQL, TypeScript, gRPC) and modern messaging systems (Kafka).* Operate within a Kubernetes-driven framework as we progress towards a microservices architecture.* Apply Domain-Driven Design principles to build high-quality, impactful products from inception to delivery.

Join TransPerfect Games, a premier provider of customized video game services, where we offer a diverse range of solutions encompassing translation, functional and localization game testing, certification testing, focus group and playtesting, player support, community management, cybersecurity, penetration testing, tool development, art design, game writing, GDPR consultancy, and voice-over recording.We collaborate with over 1000 esteemed global game developers and publishers, and we are currently seeking Game Localization QA Testers who possess native proficiency in Vietnamese. In this dynamic role, you will assist clients with testing issues, working on exciting projects from small independent studios to AAA titles from industry giants!If you are:passionate about gaming,meticulously detail-oriented,capable of identifying errors in terminology, grammar, punctuation, and linguistic style in your native language,open to learning and receptive to constructive feedback,committed to delivering top-notch and timely testing to enhance our clients' games,an experienced gamer eager to contribute to creating exceptional gaming experiences,we invite you to engage with us! This is your chance to transform your passion into a career in the gaming industry!Important Information:This role is offered on a mandate contract.You must have the right to work in Warsaw, supported by relevant documentation. Candidates must be Polish citizens, EU citizens, permanent residents, or possess a valid work permit/Visa.This is an onsite position, requiring you to work at our Warsaw office during core business hours (Monday to Friday, 8 hours daily). Candidates should reside in the Warsaw area or be within commuting distance.Position Overview:The Game Localization QA Tester will be integral to our testing team, identifying and resolving localization issues to enhance the gaming experience.