Backend Software Engineer I jobs in Krakow – Browse 61 openings on RoboApply Jobs

Backend Software Engineer I jobs in Krakow

Open roles matching “Backend Software Engineer I” with location signals for Krakow. 61 active listings on RoboApply Jobs.

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companyTripadvisor, Inc. logo
Full-time|Hybrid|Krakow

About TripadvisorAt Tripadvisor, we believe in connecting travelers with experiences that are truly worth sharing. As a leading global platform, we are committed to becoming the most trusted source for travel guidance, enabling people to find the best accommodations, restaurants, and activities through our comprehensive range of brands including Tripadvisor, Viator, and TheFork.Our Experiences Engineering team, distributed across Europe, is pivotal in managing our platform and mobile applications, along with their supporting infrastructure. We create the systems that empower operators to enhance their businesses and facilitate third-party access to our diverse inventory. Our tools are designed to support our customer service teams in delivering exceptional service to travelers and operators around the globe.We are currently seeking a Software Engineer I to join our dynamic and expanding team. This position is available to candidates situated within a reasonable commuting distance (generally within 1.5 hours) of our Kraków office. We embrace a flexible work model that prioritizes remote work while also valuing essential in-person collaboration moments, including periodic gatherings at your nearest office for team engagement and planning.At Tripadvisor Experiences, we foster a friendly and enjoyable work environment focused on achieving results. Our engineers collaborate closely with product managers and designers throughout the entire software development lifecycle—from conceptual design to coding, testing, deployment, and beyond. Most of our engineers push code to production every few days, participating in a daily release cycle.Our engineers thrive on versatility, tackling a variety of technical challenges. This role has a backend focus, with opportunities to engage in frontend projects occasionally. While a willingness to learn is crucial, prior expertise in frontend development is not required; we provide training on that aspect during your onboarding process.The technologies we utilize include Java, React, TypeScript, GraphQL, Kubernetes, SQL, and NoSQL databases, all running on AWS infrastructure.

Mar 2, 2026
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companyARQ logo
Full-time|On-site|Krakow

Join the ARQ Team!At ARQ, we are revolutionizing the fintech landscape. Our aim is to transform global financial interactions, creating a seamless infrastructure for value transfer across borders. As we embark on this exciting journey, every new team member plays a crucial role in shaping our innovative products, company culture, and future growth. If you are passionate about tackling significant challenges and making a global impact while being part of a talented team, ARQ is the perfect place for you!Your RoleAs a Backend Engineer, you will be responsible for designing, developing, and maintaining robust backend systems that support our cutting-edge financial products. You'll work closely with a skilled team to craft solutions that promote financial inclusion and help users manage their finances more effectively.Key ResponsibilitiesFocus on developing new systems as well as enhancing existing ones.Engage in projects including building REST APIs, creating microservices, and evolving essential systems like card payments, treasury management, and cryptocurrency liquidity.Utilize Java 25 for backend development alongside a PostgreSQL database.Leverage Spring Boot to ensure quick and efficient delivery of solutions.Adopt a pragmatic approach to developing business logic, focusing on writing clean, maintainable code, and employing methodologies like TDD, DDD, and continuous integration and delivery.QualificationsA minimum of 5 years of experience in backend development with a strong command of Java.A Bachelor's degree or higher in Computer Science, Mathematics, Physics, or related engineering/science fields.A quick learner with a driven, results-oriented mindset and exceptional communication skills (fluent in English, both verbal and written).Proven experience in developing complex products utilized by millions in high-growth startup environments.

Mar 2, 2026
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companyKaseya logo
Full-time|On-site|Krakow, Poland

About Kaseya Kaseya provides IT infrastructure and security management solutions for Managed Service Providers (MSPs) and internal IT teams worldwide. Our products help organizations manage and secure IT operations efficiently. Backed by Insight Venture Partners (www.insightpartners.com), Kaseya has grown steadily, serving clients in over 20 countries and managing more than 15 million endpoints. Learn more about our solutions at www.Kaseya.com. Role Overview The Software Engineer I will join the R&D team in Krakow, Poland, focusing on Kaseya's Backup product. This entry-level position centers on backend development and cloud-based systems. What You Will Do Work with experienced engineers to develop, test, and maintain backup services Gain hands-on experience with cloud platforms, containers, and CI/CD pipelines Participate in code reviews and receive mentorship Contribute to systems with high standards for reliability, performance, and scalability Team and Culture Kaseya values transparency and clear expectations. The team is committed to exceeding customer needs and supporting each other's growth.

Apr 17, 2026
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companyNordsec logo
Full-time|On-site|Krakow

Join our innovative team at Nordsec as a Mid-Senior Backend Engineer specializing in Go. In this role, you will be responsible for designing and implementing robust backend solutions that drive our platform's performance and scalability. Collaborate with cross-functional teams to enhance our technology stack and deliver high-quality software solutions. Your expertise will contribute to our mission of providing secure and efficient digital services.

Mar 23, 2026
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companydolarapp logo
Full-time|On-site|Krakow

Join Our Team as a Backend EngineerAt dolarapp, we are seeking a skilled Backend Engineer to design, develop, and maintain robust backend systems that support our cutting-edge financial solutions. You'll work with a dynamic team dedicated to driving financial inclusion and revolutionizing how people manage their finances.Your Role & ResponsibilitiesEngage in greenfield development and the enhancement of existing systems.Develop REST APIs, engineer microservices, and improve critical business systems such as card payments, treasury management, transaction booking, and crypto liquidity.Utilize a technology stack centered around Java 25 with a Postgres database.Leverage Spring Boot for rapid and efficient delivery.Adopt a pragmatic approach to developing business logic with a focus on clean, maintainable code, using methodologies like TDD, DDD, and CI/CD.QualificationsA minimum of 5 years of experience in backend development, particularly with Java.Bachelor's Degree or higher in Computer Science, Mathematics, Physics, or related Engineering/Science fields.A quick learner with a driven attitude and excellent communication skills in English, both verbal and written.Proven experience in creating complex products used by millions in fast-paced startups.Why Work With Us?Attractive salary package.Sign-on stock options to share in the company’s success.Discretionary performance-related bonuses in the form of stock options.Paid annual leave.Ownership of the development process with a focus on customer impact.Access to the latest technologies.Collaborative team environment to foster skill development.

Jan 24, 2025
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company
Full-time|On-site|Krakow

Join Saily, where we are revolutionizing mobile connectivity for travelers. Say goodbye to roaming fees and plastic SIM cards, and enjoy ultra-fast, secure mobile data across over 200 destinations. With millions of paying customers and hundreds of thousands of travelers engaging with Saily at any moment, we are dedicated to enhancing the travel experience.At Saily, we cultivate an AI-native Product Engineering culture. Here, every engineer is a builder, tasked with solving customer challenges from conception to deployment. Our AI agents handle repetitive coding tasks, empowering engineers to focus on impactful solutions. Every team member is encouraged to contribute ideas for improvement, ensuring that our focus remains on providing our customers with a seamless, connected journey.We prioritize growth over comfort, contributions over hierarchy, and impact over process. At Saily, we equip talented individuals with context, autonomy, and advanced AI tools to excel in their roles.

Apr 12, 2026
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companyNFQ Technologies logo
Full-time|On-site|Krakow

NFQ serves as a pivotal technology partner for HomeToGo, where a passionate team of software engineers and data science experts spearheads the innovation that fuels a marketplace showcasing the world’s largest selection of vacation rentals. As we expand HomeToGo’s tech team in Lithuania, we are on the lookout for top-tier talent to join our dynamic organization.HomeToGo, the premier marketplace for vacation rentals, boasts millions of listings from trusted partners like Booking.com, Vrbo, and TripAdvisor. Whether you’re searching for vacation homes, cabins, beach houses, apartments, condos, houseboats, castles, or farm stays, HomeToGo seamlessly integrates pricing, destination, dates, and amenities to help travelers find their ideal accommodation for any journey around the globe.Established in 2014, HomeToGo operates localized applications and websites in 25 countries across Europe, North America, South America, Australia, and Asia-Pacific. The company's portfolio also includes recognizable brands such as Agriturismo.it, AMIVAC, Casamundo, CaseVacanza.it, e-domizil, EscapadaRural, Tripping.com, and Wimdu.We are seeking a Senior Software Engineer (PHP) to join our Distribution Team, responsible for developing systems that connect HomeToGo with a multitude of partners—from individual agents to major industry players like Google, TUI, and Amadeus. In this role, you'll design and maintain diverse channels that fuel our growth, integrating our B2B tools and public channels into a cohesive, high-performance ecosystem that distributes millions of vacation rentals worldwide. You will collaborate with a team of PHP and React (TypeScript) Software Engineers focused on delivering self-service software projects with a strong emphasis on data quality. Our engineers engage throughout the entire software lifecycle and work with a wide array of technologies. Moreover, you will be part of a supportive team of intelligent, dedicated, and driven individuals who make the workplace enjoyable.

Feb 19, 2026
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companynfq logo
Full-time|On-site|Krakow

nfq is hiring a Senior PHP Software Engineer in Krakow. This position centers on building, maintaining, and improving software solutions using PHP. The work involves hands-on development with a focus on quality and reliability. Role overview This role calls for experience with PHP to support the full software lifecycle. The Senior PHP Software Engineer will contribute to both new development and ongoing enhancements of existing systems. Collaboration Work closely with colleagues from different teams to ensure products align with client needs. Communication and teamwork are important aspects of this position. What you will do Develop and maintain PHP-based software Enhance existing solutions for better performance and stability Collaborate with cross-functional teams on project delivery

Apr 29, 2026
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companyActiveCampaign logo
Full-time|On-site|Krakow

Join ActiveCampaign as a Staff Software Engineer and contribute to our mission of delivering exceptional customer experiences through innovative technology. As a Staff Software Engineer, you will play a pivotal role in developing robust software solutions that support our diverse clientele. You will collaborate with cross-functional teams to design, implement, and maintain high-quality software applications.

Mar 5, 2026
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companyQualtrics logo
Full-time|On-site|Krakow, Poland

At Qualtrics, we develop innovative software that empowers the world's leading brands to provide outstanding frontline experiences, cultivate high-performing teams, and create products that resonate with users. We are not just a platform; we are the pioneers and custodians of the Experience Management sector, serving over 18,000 clients around the globe. Building a new category demands resilience, tenacity, and a break from the norm—but most importantly, it requires cohesive, high-functioning teams committed to prioritizing our customers' needs.Joining our teams means becoming part of an agile group that is trusted to set bold objectives and swiftly work towards achieving them. We encourage strategic risks and tackle complex challenges collaboratively, ensuring the best solutions emerge through discussion and iteration. Growth opportunities abound here; whether ready or not, they will find you. From retail to government and healthcare, our mission is to restore humanity, connection, and empathy to business. Join over 6,000 colleagues worldwide who share our belief in the importance of work that matters.Senior Software EngineerThe Employee Experience (EX) TeamThe Employee Experience (EX) Team at Qualtrics comprises passionate engineers, the first fully operational in EMEA, focused on creating solutions that enable companies to understand and nurture their employees. We thrive on diagnosing and resolving intricate, ambiguous challenges for our customers, constantly innovating through AI-driven products to provide the best possible experiences. This team enjoys a high level of autonomy and ownership, empowered to influence product and technology roadmaps. Utilizing state-of-the-art tools and adopting a technology-agnostic stance allows us to work closely with clients and actual end-users. Our contributions have an impact on some of the largest employers globally, including Walmart, Nestle, JPMC, Coca-Cola, and KFC, all within a collaborative culture filled with enthusiastic individuals.Your ResponsibilitiesDesign and develop scalable, efficient, and user-friendly web-based solutions to address complex business challenges.Introduce new functionalities and enhance existing ones to maximize performance.Collaborate closely with fellow engineers, tech operations, and product managers, integrating feedback effectively.Engage in daily stand-up meetings, work alongside peers, prioritize feature development, and coordinate with...

Jan 6, 2026
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companyActiveCampaign logo
Full-time|On-site|Krakow

We are searching for a passionate and talented Software Engineer to join our Agent Development team at ActiveCampaign. In this role, you will be instrumental in designing and implementing innovative software solutions that enhance our customer experience and drive our mission forward.You will work closely with cross-functional teams to analyze requirements, develop applications, and ensure the best practices in software development are followed. This is an exciting opportunity to contribute to projects that impact our users directly.

Mar 5, 2026
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companyQualtrics logo
Full-time|On-site|Krakow, Poland

At Qualtrics, we develop innovative software solutions that empower the world’s leading brands to deliver outstanding frontline experiences, cultivate high-performing teams, and create products that resonate with users. Beyond just a platform, we are pioneers in the Experience Management sector, proudly serving over 18,000 clients worldwide. Establishing a new category demands tenacity, creativity, and a break from traditional methods—most importantly, it requires cohesive, high-performing teams dedicated to our customers' success.By joining our dynamic team, you will be part of an agile group that is encouraged to set ambitious goals and rapidly pursue them. We embrace strategic risks and collaboratively tackle complex challenges, iterating until we unveil the optimal solutions. Opportunities for personal and professional growth will come to you—whether you're ready or not. From retail to government and healthcare, our mission is to reintroduce humanity, connection, and empathy into business. Join over 5,000 professionals globally who believe this work is worth doing.

Jan 6, 2026
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companyPave logo
Full-time|On-site|Krakow, Poland

Who We AreAt Pave, we are revolutionizing compensation management by creating the industry’s most advanced platform. Our solution integrates the largest real-time compensation dataset with cutting-edge AI and machine learning capabilities. Trusted by over 8,500 companies, we empower organizations to make informed compensation decisions with confidence.Renowned companies such as OpenAI, McDonald’s, Instacart, Atlassian, Synopsys, Stripe, Databricks, and Waymo leverage Pave to turn compensation strategies into competitive advantages. Our platform manages over $190 billion in total compensation expenditures, and 70% of the Forbes AI 50 utilize Pave for compensation benchmarking.We are at the forefront of transforming compensation into a real-time and predictive process. With $160 million in funding from leading investors like Andreessen Horowitz, Index Ventures, Y Combinator, Bessemer Venture Partners, and Craft Ventures, we are poised for significant growth.The Communicate Team @ PaveOur Communicate team develops products that enable clear, transparent, and trustworthy communication of compensation to employees and candidates. As a member of this team, you will take ownership of essential experiences used daily by thousands to understand pay and rewards. This is a unique opportunity to join as a founding engineer on a high-impact product team, influencing not only what is built but also how our team operates, shaping our roadmap, and establishing the engineering culture from the ground up. In your role as a Senior Software Engineer, you will contribute to creating elegant, enterprise-grade product experiences for some of the world’s leading companies. The immediate focus is on enhancing enterprise capabilities and developing AI-driven compensation intelligence features that aid organizations in making informed pay decisions and provide employees with a clearer understanding of their compensation.

Mar 26, 2026
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companyQualtrics logo
Full-time|On-site|Krakow, Poland

At Qualtrics, we empower the world's leading brands to deliver outstanding frontline experiences, cultivate high-performing teams, and design products that resonate with users. More than just a platform, we are the pioneers and custodians of the Experience Management category, proudly serving over 18,000 clients globally. Building a category requires tenacity, creativity, and a willingness to challenge the status quo—but above all, it demands cohesive, high-functioning teams dedicated to our customers' success.Joining one of our teams means becoming part of a dynamic group that is encouraged to set ambitious goals and move swiftly to realize them. We embrace strategic risks and tackle complex challenges collaboratively, ensuring the best solutions emerge through discussion and iteration. Growth opportunities abound—whether you're ready or not, they'll find you. From retail to government to healthcare, we are on a mission to reintroduce humanity, connection, and empathy to the business world. Join over 6,000 individuals worldwide who believe this is work worth pursuing.Senior Software EngineerWhy We Have This RoleOur team consists of passionate engineers at the forefront of cloud computing and web scalability. We manage and analyze vast amounts of data while developing solutions utilized by millions daily. Our innovation simplifies complex research processes. Our teams have the autonomy to select the best technologies for each challenge, allowing for significant impact across our entire product stack—from web and mobile UI to data visualization, analysis, microservices APIs, and data storage and processing. How You’ll Find SuccessAs a Software Engineer at Qualtrics, you will thrive on constructing straightforward solutions to intricate scalability challenges. Designing systems within an agile framework to endure rapid growth and taking ownership of quality throughout the process is both a rewarding challenge and a key reason why Qualtrics is such an exciting place to work. How You’ll Grow Qualtrics offers a fast-paced, dynamic environment where you can expand your experience through impactful projects, cutting-edge tools and technologies, and collaborating with like-minded technical professionals.

Jan 6, 2026
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companyQualtrics logo
Full-time|On-site|Krakow, Poland

At Qualtrics, we empower the world's leading brands to create outstanding frontline experiences, cultivate high-performing teams, and develop products that resonate with people. We aren't just a software platform; we are pioneers in the Experience Management domain, proudly serving over 18,000 clients worldwide. Building a new category demands tenacity, innovation, and a commitment to breaking the mold, but most importantly, it requires cohesive, high-performing teams dedicated to our customers.When you join our team, you'll become part of a dynamic group with the autonomy to establish ambitious targets and swiftly pursue them. We encourage strategic risks and collaboratively tackle complex challenges, continuously iterating until the optimal solution emerges. Growth opportunities will find you—whether you're in retail, government, or healthcare, we're on a mission to restore humanity, connection, and empathy to business. Join over 6,000 passionate individuals globally who believe in the value of meaningful work.Why We Need YouOur team consists of highly motivated engineers at the forefront of cloud computing and web scalability. We manage and analyze terabytes of data while creating solutions that are utilized by millions daily. We build tools that simplify complex research processes, and our teams have the liberty to choose the best technologies for each challenge. In our collaborative environment, you will find numerous opportunities to influence our full-stack product, from web and mobile UI to data visualization and analysis, microservices APIs, and data storage and processing.Your Path to SuccessAs a Software Engineer at Qualtrics, your passion for crafting straightforward solutions to complex scalability issues is key. Developing systems within an agile framework to support rapid growth while ensuring quality at every level is a rewarding endeavor—one of the many reasons Qualtrics is an exciting place to advance your career.Your Growth JourneyQualtrics offers a fast-paced, dynamic environment where you'll have the chance to enhance your skills through impactful projects, leverage cutting-edge tools and technologies, solve challenging problems, and collaborate with like-minded, driven technical professionals.

Jan 6, 2026
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companyOpenX logo
Full-time|On-site|Krakow

About OpenX OpenX helps digital media companies grow their business by building advertising technologies and marketplaces that deliver strong value for publishers and advertisers. Our team brings deep experience in designing and running high-scale ad marketplaces. We look for creative professionals who are interested in market design, technical progress, operational quality, and excellent partner service to advance digital advertising. Role Overview: Software Development Engineer in Test II OpenX is hiring a Software Development Engineer in Test II for the Full-Stack team in Krakow, Poland. This role suits engineers who enjoy exploring new challenges and want to work on both frontend and backend systems as part of a collaborative team. Technologies We Use Frontend: JavaScript/TypeScript, React, Material UI API: Python Backend: Java, Go, Erlang, Elixir CI/CD: Cloudbuild, Spinnaker How We Work The team follows Scrum but adapts processes as needed. SDETs at OpenX work closely with peers across frontend and backend areas and participate in the QA Guild, which focuses on improving tools and processes across the company. Scale and Impact 100% cloud-based platform on Google Cloud Platform (GCP) Over 380 billion ad requests processed daily More than 120,000 CPU instances used each day Over 140 TB of RAM utilized daily 50+ petabytes of data processed every week More than 1,200 production deployments each month

Apr 16, 2026
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companyQualtrics logo
Full-time|On-site|Krakow, Poland

At Qualtrics, we develop innovative software solutions employed by the world’s leading brands to provide outstanding frontline experiences, cultivate high-performing teams, and design products that resonate with users. More than just a platform, we are the pioneers and custodians of the Experience Management category, proudly serving over 18,000 clients globally. Establishing a new category demands tenacity, resolve, and a rejection of conventional wisdom—but above all, it necessitates cohesive, high-performing teams committed to customer satisfaction.Joining our team means becoming part of an agile group empowered to set ambitious goals and swiftly execute them. We embrace strategic risks and collaboratively tackle complex challenges, fostering an environment where the best solutions emerge through collective iteration. Growth opportunities will come to you, whether you’re ready or not. Spanning various sectors from retail to government to healthcare, our mission is to reintroduce humanity, connection, and empathy into business. Be part of a vibrant community of over 5,000 individuals worldwide who believe in the importance of meaningful work.

Jan 6, 2026
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companynordsec logo
Full-time|On-site|Krakow

Join nordsec as a Senior Full-Stack Software Engineer and play a pivotal role in developing innovative software solutions. In this position, you will collaborate closely with cross-functional teams to design, build, and maintain robust applications that meet our clients' needs. If you're passionate about technology and eager to contribute to exciting projects, we want to hear from you!

Mar 16, 2026
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companyKaseya logo
Full-time|On-site|Krakow, Poland

Join Kaseya, a leading provider of IT management software, as a Software Engineer II specializing in Golang. In this dynamic role, you'll collaborate with a talented team to develop innovative software solutions that empower IT professionals globally. Your expertise in Golang will be crucial in enhancing our applications and ensuring the highest standards of quality and performance.

Mar 26, 2026
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companyKaseya logo
Full-time|On-site|Krakow, Poland

Are you passionate about software development and looking to take your career to the next level? Kaseya is seeking a talented Software Engineer II with expertise in Node.js to join our dynamic team in Krakow, Poland. In this role, you will contribute to the design and implementation of innovative software solutions that enhance our products and services.As a key member of our engineering team, you will work closely with cross-functional teams to deliver high-quality software that meets the needs of our diverse client base. This is a fantastic opportunity for a motivated individual who thrives in a fast-paced environment and is eager to learn and grow.

Mar 27, 2026

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