Mid-Level Backend Spark Developer

Join Our Team!At Xebia, we are dedicated to nurturing experts in the technology domain. With nearly twenty years of experience delivering innovative digital solutions globally, we have collaborated with prestigious brands such as UPS, McLaren, Aviva, and Deloitte, among many others.Our passion for cloud technologies has led us to forge partnerships with industry giants, including Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP). We proudly became the first AWS Premier Consulting Partner in Poland.Previously known as PGS Software, we joined the Xebia Group in 2021, a network of companies united by a mission to transform the tech landscape.Xebia embodies innovation, talented professionals, and technological excellence. Our commitment to being recognized as leaders in our field empowers us to take on global projects that challenge the norm.What sets us apart? It's our attention to detail, our commitment to knowledge sharing, and our belief in the potential of every individual. We invite you to come and experience our culture firsthand!Now that you've learned about us, we are eager to discover more about you!Send us your resume and let's start the conversation to welcome you to the #Xebia family.

Join Our Team!Welcome to Xebia, a dynamic environment where professionals thrive. For nearly 20 years, we have been at the forefront of delivering innovative digital solutions across diverse industries worldwide. Our esteemed clients include UPS, McLaren, Aviva, Deloitte, and many others.Our dedication to Cloud technology is unparalleled, as evidenced by our partnerships with leading Cloud service providers such as Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP). We take pride in being the first AWS Premier Consulting Partner in Poland.Previously known as PGS Software, we became part of the Xebia Group in 2021, joining a collective of companies committed to transforming the tech landscape.Xebia embodies innovation, expertise, and a commitment to excellence. We are recognized globally for our thought leadership and the opportunity to engage in groundbreaking projects.Our core mission is to establish ourselves as the authority in our field.What sets us apart? It’s our attention to detail, a commitment to knowledge, and a belief in the potential of every individual on our team. We invite you to experience our vibrant culture firsthand!Now, let’s focus on you!Send us your resume to initiate a conversation and become a part of #Xebia!Your Role:Designing, developing, and maintaining cross-platform mobile applications using Flutter.Implementing best practices for clean, reusable, and maintainable code.Optimizing app performance across various devices and screen sizes.Collaborating with product managers, designers, and backend engineers to define app requirements and deliver exceptional user experiences.Working closely with backend teams to integrate APIs and ensure seamless data flow, implementing third-party libraries, tools, and SDKs as necessary.

Join Our Team!Welcome to Xebia, where innovation and expertise thrive. With nearly 20 years of experience in delivering cutting-edge digital solutions across various industries globally, we've partnered with renowned brands like UPS, McLaren, Aviva, and Deloitte.We are deeply committed to Cloud-based technologies, collaborating with leading providers such as Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP). Proudly, we were the first AWS Premier Consulting Partner in Poland.As part of Xebia Group since 2021, we are a network of companies dedicated to making significant impacts in the tech landscape. Our culture promotes innovation, teamwork, and a commitment to excellence, allowing us to engage in groundbreaking projects worldwide.We believe in empowering our employees through knowledge and personal development, fostering an environment where every team member can thrive. We invite you to experience our unique culture firsthand!We look forward to learning more about you!Send us your resume and let’s start the conversation!

Role overview Box Inc. seeks a Mid-Level Python Developer based in Warsaw, Poland. The role focuses on building web applications that are both efficient and scalable. Work alongside a team of experienced developers, contributing directly through hands-on coding and participating in peer code reviews. Writing clean, maintainable Python code is central to this position. What you will do Develop and maintain web applications using Python Write code that remains clear, organized, and easy to support Participate in code reviews to help maintain quality standards Collaborate with teammates to address technical challenges Requirements Enjoys working through complex problems Proactive and willing to learn Comfortable contributing in a collaborative environment

Join our dynamic team at Jobs for Humanity as a Mid-Level Full-Stack Developer. In this role, you will play a pivotal role in developing and maintaining web applications that make a difference for job seekers around the world. You will work on both front-end and back-end development, collaborating with cross-functional teams to deliver high-quality software solutions.

The project involves enhancing the architecture of a system that supports clients in branches and partner locations.RESPONSIBILITIES:Participate in architectural changes to the system.Implement new functionalities using Angular 19 and Java 21.Refactor existing code for improved performance.Create integrations with REST services.Optimize performance and implement security solutions.Assist in designing and documenting technical specifications.

Oxylabs, headquartered in Warsaw, develops proxy and web data scraping solutions for a diverse client base, including Fortune 500 companies. The company’s team of over 500 professionals tackles large-scale technical challenges together. Role overview This remote mid-level PHP developer position centers on managing and enhancing the infrastructure behind Oxylabs’ data platforms. The systems you will help support are built to handle vast amounts of data and high-volume traffic. Key infrastructure details Ceph storage exceeding 6 petabytes Monthly data traffic of more than 60 petabytes Over 300,000 service requests each second Streaming upwards of 500,000 Kafka messages per second What you will do The work focuses on solving complex technical problems and strengthening the core systems that power Oxylabs’ data-driven products. Expect to contribute directly to the reliability and scalability of this infrastructure.

Join Box Inc. as a Mid-Level Java Engineer and take part in building innovative solutions that streamline processes and enhance user experiences. You will collaborate with a team of talented developers, contributing to the design, development, and maintenance of high-quality software applications.We value creativity, teamwork, and a passion for technology. If you are eager to tackle challenging problems and develop your skills in a supportive environment, we would love to hear from you!

Join altersolutions as a Mid/Senior Angular Developer in Warsaw, where you will have the opportunity to work on innovative projects and enhance your skills in a collaborative environment. You will be responsible for developing dynamic web applications using Angular, collaborating with cross-functional teams to design and implement user-friendly interfaces.

Join Our Team at NordLayer!At NordLayer, we are on a mission to deliver scalable cybersecurity solutions tailored for modern businesses.Our innovative platform empowers teams to operate efficiently without the burden of security concerns. Trusted by over 11,000 global companies, NordLayer seamlessly integrates with any technology stack to safeguard users across borders.Your Role: As a DevOps Engineer, you will play a crucial role in enhancing and automating our infrastructure and CI/CD processes. Collaborating with Senior Engineers and cross-functional teams, you will implement best practices in DevOps, support robust and scalable cloud solutions, and ensure smooth software delivery. This is a fantastic opportunity for professional growth in a dynamic environment while contributing to our infrastructure automation initiatives.Key Responsibilities:Implement and maintain Infrastructure as Code (IaC) using Terraform.Develop, manage, and optimize Terraform modules.Oversee and enhance AWS Cloud infrastructure, ensuring performance, scalability, and availability.Assist in establishing and maintaining monitoring and logging systems (e.g., ELK, Grafana, Thruk).Provide technical support for infrastructure, CI/CD pipelines, and deployment processes.Troubleshoot and resolve infrastructure-related issues to ensure seamless operations.Document and uphold DevOps workflows, processes, and system configurations.

Join Talan as a Mid-Level Business Analyst, where you will play a crucial role in bridging the gap between business needs and technology solutions. We are looking for a detail-oriented professional who can analyze business processes, identify areas for improvement, and collaborate with stakeholders to implement effective strategies.

Join a leading global food and beverage company that operates across 189 countries and boasts a portfolio of over 2000 brands, including bottled water, dairy products, breakfast cereals, coffee, confectionery, frozen food, pet foods, snacks, and baby food.We are in search of a Mid-Level Data Engineer to craft, develop, and sustain robust data systems that facilitate analytics, reporting, and machine learning initiatives. This position calls for a strong sense of ownership, proficient SQL capabilities, and experience handling extensive datasets within production settings.

About UsAt Remedy Product Studio, we are on the cutting edge of technology, focusing on Product Strategy, Technology Execution, Launch, and Investment. Our rapidly growing team excels in collaborating with and investing in leading start-ups and brands to develop and scale innovative digital products. We pride ourselves on our data-driven agile methodologies and high-performing teams, which form the backbone of our technology-first culture.We engage with startups to strategize, execute, launch, and invest in a variety of digital products, such as web applications, mobile apps, data science tools, and firmware for connected devices. Join us to be a part of this exciting journey!Your RoleWe are in search of a dynamic Mobile Engineer specialized in Flutter to join our innovative team. If you possess an insatiable curiosity and a passion for creating exceptional products, this is the perfect opportunity for you. Collaborate with our product managers and partners to design and develop outstanding mobile applications that will make a significant impact on the future of Remedy and its partners.

Role Overview InPost is hiring a Java Software Engineer (Mid-Senior Level) in Kraków. This role focuses on building and improving software solutions that support the company’s products and services. What You Will Do Develop and maintain Java-based applications Collaborate with team members to design and implement new features Write clear, maintainable, and efficient code Contribute to code reviews and help ensure high standards Who We’re Looking For Experience working with Java in a professional setting Comfort working in a collaborative team environment Commitment to delivering quality software This position is based in Kraków and offers the chance to work on projects that support InPost’s growth and innovation.

Join the forefront of digital privacy with the world’s leading VPN!Are you a passionate problem-solver who thrives on innovation? Become a vital member of the team that developed Threat Protection Pro, the NordLynx protocol, and the fastest VPN globally—empowering users with enhanced privacy, security, and control over their online presence.Your contribution? Enable millions of users to regain control of their online security, privacy, and data.The Low-Level Server Side Team is at the helm of delivering VPN server software that serves millions of users worldwide.

The Data Center Coordinator plays a pivotal role in managing electronic devices and server operations on a daily basis, ensuring smooth data transfer operations both regionally and globally. This position involves monitoring asset availability, ensuring adherence to processes, managing inventory through dashboards, and coordinating with software, hardware, and logistics teams.This role necessitates proactive communication with a diverse range of stakeholders to coordinate the execution of tasks efficiently, address customer inquiries, and provide regular updates on project progress. Key responsibilities include overseeing cloud-based data transfer processes, identifying discrepancies, performing routine system checks, and escalating issues as needed.As a central point of contact, the Data Center Coordinator collaborates with international teams to standardize global processes, facilitate discussions, and anticipate business requirements. The position demands strong problem-solving skills, the ability to prioritize tasks based on urgency, and occasionally attending meetings outside standard working hours.

At INGENIOUS.BUILD, we have crafted an exceptional platform tailored for businesses in the real estate and construction sectors globally. Our solution empowers organizations to effectively oversee every facet of their projects from inception to completion, both internally and in collaboration with other stakeholders.Joining INGENIOUS.BUILD presents an exciting opportunity to contribute to the development of the pioneering cloud application designed to manage the entire lifecycle of real estate construction projects. You will be instrumental in building what many consider the pinnacle of construction project management. This ambitious endeavor requires a bold spirit, and if you possess the right skills, you'll play a crucial role in shaping its future.If you have the necessary expertise, you'll be actively involved in its development. The journey ahead promises to be historic...About the Role:INGENIOUS.BUILD is on the lookout for a talented Mid-Level Frontend Developer to join our dynamic remote team. If you have robust programming capabilities, a deep-seated passion for application development, and a knack for problem-solving, we want to connect with you. In this position, you'll work alongside a small SCRUM team to ensure seamless system integration with other development teams.At INGENIOUS.BUILD, we prioritize minimizing meetings, allowing you to concentrate on your core expertise: development. We recognize the value of flexibility, thus offering adaptable working hours that cater to your productivity peaks. Our aim is to cultivate a collaborative workspace free from excessive bureaucracy, empowering each team member to make a meaningful impact on the product. Our culture is built on the foundations of experienced professionals who relish tackling challenging problems and sharing insights, ensuring a supportive and inspirational environment. We encourage curiosity, the questioning of assumptions, and cross-functional collaboration to drive successful outcomes.Your Contributions Will Include:Implementing robust solutions using Vue.js 3, TypeScript, and JavaScript.Optimizing and enhancing the codebase while identifying product improvements and collaborating with the team to fix bugs.Utilizing strong analytical skills and experience in developing large-scale SaaS applications such as CRM, CMS, and ERP systems.Committing to the continuous enhancement of our codebase, reducing legacy code, implementing tests, and ensuring up-to-date practices.Focusing solely on development while our DevOps team manages infrastructure, with pipelines established for linting, unit, integration, and end-to-end testing, all supporting automated deployments.Adopting our philosophy of writing code that is easy to test and reason about.

Join altersolutions as a Mid/Senior Java Developer and take part in exciting projects that shape the future of technology. In this role, you will leverage your expertise in Java development to create innovative solutions and enhance existing systems. You will collaborate with cross-functional teams to deliver high-quality software in a dynamic, fast-paced environment.

Join Us in Revolutionizing Password Security!At NordPass, we are dedicated to making password security seamless and straightforward. Our mission is to ensure that managing logins is both safe and easy. Be a part of the innovative team that powers NordPass—a trusted password manager used by over 7 million individuals and more than 10,000 companies worldwide to protect their sensitive information, including credentials and payment details.Your Role: As an Android Developer, you will play a pivotal role in enhancing our applications, enabling millions to secure their digital identities. You will contribute to developing intelligent and secure login solutions that empower users globally.