Senior Software Backend Engineer

Join 42dot as an Operating System Tool Software Engineer in Warsaw, Poland. We are looking for talented engineers to help us develop state-of-the-art software tools that enhance operating system functionalities. The ideal candidate will have a passion for technology and a keen eye for detail.

Join Point72 as a Software Engineer focused on Enterprise Systems, where you will play a crucial role in developing and maintaining innovative software solutions that drive our business operations. Collaborate with cross-functional teams to design, implement, and optimize software applications that enhance the efficiency and effectiveness of our enterprise systems.

At Euronet, we are not just developers of payment solutions; we are pioneers in transforming the global landscape of financial transactions. As a renowned leader in payment processing and cross-border transactions, our innovative offerings—from mobile wallets to real-time payment platforms—are driving digital transformation across more than 160 countries.We are excited to welcome a new member to our Project Delivery Team, focusing on the essential Implementation processes.Your Experience @ EuronetAs a valued #Euronetter, you will thrive in a culture that places a strong emphasis on trust, respect, and collaboration. Your efforts will be acknowledged, and your career path will be enriched through substantial professional development opportunities.Perks & Benefits That Matter:Comprehensive private health insurance packageFull-time indefinite employment contract (not a temporary agreement)Hybrid work model (3 days in the office, 2 days remotely each week)An international and professional work environmentOpportunities for professional advancementYour Impact:Assist Business Analysts in defining business needs, processes, and system requirementsDesign solutions based on detailed requirements, functional specifications, and gap analysisTranslate functional specifications into actionable solutions through integrations and configurationsProvide estimates and technical plans for configuration and quality assurance tasksConfigure systems to align with requirementsDocument all configuration activities and support the Change Management processCollaborate with Development teams for enhancement requests or bug fixesConduct training sessions for end users and ensure thorough handover processesIdeal Candidate Profile:Recent graduates with a degree in IT or a related technical fieldIf experienced, a background in Financial, Fintech, Banking, or Electronic Fund Transfer (EFT) industries is preferredPractical experience with any database (SQL, RDBMS, or NoSQL)Basic understanding of Linux and XMLProficient computer skills with an aptitude for learning new software and technologiesFluency in both English and PolishStrong analytical and time management abilitiesWillingness to collaborate within diverse teams, both nationally and geographicallyCapable of complex thinking in IT and business processesAbility to multitask effectivelyAdditional Skills That Will Help You Excel:Experience in software development, testing, or configurationKnowledge of any programming languageEuronet is proud to be an Equal Opportunity Employer, considering all qualified applicants without regard to race, color, religion, gender, sexual orientation, gender identity, national origin, age, disability, genetic information, protected veteran status, or any other characteristic protected by law.

Role Overview JetBrains s.r.o. creates tools that help developers work smarter. The team is looking for a Software Engineer with experience in CLion, embedded debugging, and tool integrations. This position is open in several locations: Belgrade, Berlin, Limassol, Madrid, Munich, Paphos, and Warsaw. What You Will Do Design and enhance features in CLion focused on embedded systems. Debug and optimize embedded applications for reliability and performance. Integrate different development tools to improve workflow efficiency. Work with teams across disciplines to define needs and deliver solutions. Who We’re Looking For This role suits engineers who enjoy solving complex problems and improving developer tools. Curiosity, creativity, and a strong interest in technology are valued here.

Waymo is at the forefront of autonomous driving technology, striving to become the world’s most trusted driver. Originating from the Google Self-Driving Car Project in 2009, our focus has been on developing the Waymo Driver—The World’s Most Experienced Driver™—to enhance mobility access and prevent traffic-related fatalities. The Waymo Driver is the driving force behind Waymo’s fully autonomous ride-hailing service, having completed over ten million rider-only trips while autonomously covering more than 100 million miles on public roads and tens of billions in simulated environments across 15+ U.S. states.The Waymo Mapping team is dedicated to creating a high-resolution map of the world to facilitate safe autonomous driving. Our innovative mapping process combines automated and manual techniques, along with robust infrastructure for data storage, processing, and distribution. We collaborate closely with various teams within Waymo that utilize map data.Your Responsibilities:Develop and enhance essential labeling tools and systems that drive mapping initiatives at Waymo.Partner with Mapping Operations, UX, and engineering teams to deliver outstanding internal tools.Collaborate with machine learning teams to integrate advanced models into our workflow, significantly increasing scalability.Construct backend infrastructure for the effective storage and processing of diverse map data.Utilize Google's ecosystem to build, deploy, and scale backend services that manage extensive mapping data.Expand systems to map urban environments, supporting Waymo’s rapid growth into new and complex cities.Your Qualifications:Bachelor’s degree or equivalent practical experience.A minimum of 3 years of relevant industry experience.Proficiency in C++ and large-scale data processing.A proactive approach to owning problems end-to-end, tackling various facets of complex systems.A strong passion for software engineering excellence.Preferred Qualifications:Hands-on experience with geospatial data.

JetBrains is seeking an AI Lead focused on Python tools. This position centers on advancing AI technologies across the company’s product suite, with the goal of improving both user experience and product capabilities. Role overview The AI Lead will guide the development and integration of AI features into JetBrains products. The role involves direct oversight of AI project initiatives and regular collaboration with teams from various disciplines. Expect to play a key part in shaping technical direction and ensuring that Python-powered solutions continue to set a high standard in the industry. What you will do Oversee AI-focused projects from conception through implementation Work closely with engineers, designers, and product managers to align AI features with product goals Drive innovation by applying Python expertise to create and refine AI solutions Locations This role is open to candidates based in Amsterdam, Belgrade, Berlin, Limassol, London, Madrid, Munich, Paphos, Prague, remote within Germany, Warsaw, and Yerevan.

Join our dynamic team at Nordsec as a Mid-Level Backend Engineer, specializing in developing robust security tools. In this role, you will design, implement, and maintain backend services that safeguard our digital assets and enhance user experiences.Your responsibilities will include collaborating with cross-functional teams, ensuring optimal system performance, and contributing to the architecture of our security infrastructure. We are looking for innovative thinkers who are passionate about coding and eager to tackle challenging problems.

As a trailblazer in online flash sales since 2001, Veepee stands as a cornerstone in the European e-commerce landscape, partnering with over 7,000 brands to deliver exceptional deals on a wide array of products for a limited time. With a remarkable turnover of 3.3 billion euros incl. VAT in 2024, Veepee boasts a dynamic workforce of 5,000 employees across 10 countries, operating in sectors such as fashion, home, wine, travel, and beauty. JOB DESCRIPTIONWe are excited to invite an experienced Backend/Full Stack Developer to join our innovative Logistics Tooling team at VeepeeTech. This pivotal role involves developing cutting-edge solutions that enhance warehouse operations and optimize the Veepee return process, ensuring an efficient and seamless experience for our customers.

Senior Software Engineer, Data Foundations ABOUT THE ROLE At Peloton, we view Data as a Product—a vital asset that drives every member interaction and influences business decisions. Our Datastores team is committed to offering a dependable, secure, and high-performing data persistence layer for application services throughout the organization. Our core principles include: 1. Safeguard the data, 2. Optimize for scalability, speed, and reliability, and 3. Minimize manual effort. We are seeking a Senior Software Engineer with extensive experience in constructing and managing data-intensive systems to join our Datastores team. This position is perfect for a backend engineer who has developed and maintained production systems heavily reliant on databases, caching layers, and data pipelines, and who is eager to advance their knowledge in scalable, cloud-native data infrastructures. You will collaborate at the intersection of application engineering and data platform reliability, working alongside service teams to enhance the storage, access, scalability, and observability of data across Peloton’s ecosystem. YOUR DAILY IMPACT AT PELOTON Your responsibilities will include: Designing, building, and maintaining backend systems that depend on scalable and highly available data persistence layers. Collaborating with service teams to refine database design, enhance query performance, and optimize data modeling. Contributing to automation efforts surrounding infrastructure provisioning using tools like Terraform and Backstage, while improving developer experience by creating self-service tools for databases and caching systems. Focusing on observability, performance insights, and autoscaling strategies for production datastores. Participating in architectural discussions regarding multi-regional data persistence and global scalability. This role merges hands-on backend engineering with significant exposure to cloud data systems and platform reliability challenges. WHAT YOU BRING We are looking for proficient backend engineers who are data-centric—those who have built systems where data performance, reliability, and modeling are crucial. 5+ years of software engineering experience in developing production backend systems. Strong familiarity with relational databases such as PostgreSQL or MySQL, including schema design, indexing, and query optimization. Experience with NoSQL datastores like DynamoDB, Redis, Elasticsearch, or Memcache. Exposure to data pipelines, event-driven architectures, and cloud technologies.

Join Securitas as a Monitoring Systems Operator in our Operational Center in Warsaw. You will play a pivotal role in ensuring the safety and security of our clients by monitoring various security systems and responding to alerts in real-time.As part of our team, you will be responsible for:Monitoring surveillance systems and security alarms.Responding promptly to security incidents and communicating effectively with emergency services as needed.Maintaining detailed logs of activities and incidents.Collaborating with team members to enhance security protocols.If you are detail-oriented, proactive, and committed to safety, we encourage you to apply.

Join our dynamic team as a Middle Embedded Software Engineer at Sigma Software Group in Warsaw! We are looking for a passionate engineer who is eager to contribute to innovative projects in embedded systems development. You will work in a collaborative environment, leveraging your skills to create high-quality software solutions.

Join Box as a Senior Software Engineer specializing in File Systems and play a pivotal role in enhancing our innovative content management platform. At Box, we empower organizations to thrive in the AI-first era by optimizing collaboration and workflow management. As part of the Content Capabilities team, you'll contribute to our ambitious goal of supporting the Box Content Cloud's exponential growth by developing new platform features that enable intuitive user experiences. Collaborate with a talented team to tackle complex challenges in content management and make a significant impact on productivity for millions of users at leading enterprises.

Join Box – The Future of Content ManagementBox, Inc. (NYSE:BOX) stands as the leader in Intelligent Content Management. Our innovative platform empowers organizations to enhance collaboration, manage the entire content lifecycle, secure vital documents, and transform business workflows through enterprise AI. Established in 2005, we simplify operations for renowned global organizations, including JLL, Morgan Stanley, and Nationwide. With our headquarters in Redwood City, CA, and offices worldwide, Box is at the forefront of the AI-first business era.At Box, you will play a pivotal role in advancing our platform. In a landscape where content drives daily operations across teams and departments—ranging from contracts to marketing assets—our mission is to infuse intelligence into content management, enabling customers to revolutionize workflows across their enterprises. As we harness the power of AI alongside enterprise content, we present an unmatched opportunity to reshape collaboration globally. Be a part of this significant transformation at Box!Why We Need YouThe Content Capabilities team is a newly established group with the ambitious vision of propelling the Box Content Cloud into its next wave of growth. We are dedicated to developing innovative platform capabilities that empower our product teams and customers to create unique, scalable experiences for millions of users. As we launch our first set of features, unlocking new use cases and significantly enhancing user collaboration on content, we invite a skilled Backend Software Engineer to join our team. You will have the opportunity to collaborate with a talented group of professionals, contributing to our roadmap of new capabilities and shaping the future of content management.

Larian Studios, renowned for our award-winning role-playing games, is on the lookout for a Tools Director to contribute to our next big projects. Join the creative minds that brought you Baldur’s Gate 3 and Divinity: Original Sin 2, and help us deliver the high-quality gaming experiences our fans cherish.

Project OverviewJoin our newly established team focused on OpenStack technologies as a pivotal member. Collaborate with an OpenStack Architect and a Principal Engineer to create and maintain robust private cloud platforms for our international clientele. This is an exceptional chance to influence the operational standards of a new unit, working with large-scale production environments while ensuring their stability, scalability, and security. Your ContributionDeploy, develop, and maintain OpenStack production environments.Execute platform upgrades and manage lifecycle operations using industry-standard methodologies.Automate infrastructure provisioning and configuration with Infrastructure as Code (IaC) tools.Troubleshoot complex issues across the OS and cloud platform layers.Design and maintain monitoring solutions to ensure system observability.Utilize scripting and coding to automate routine tasks and enhance system efficiency.Collaborate with the team to implement best practices for the new OpenStack division. 

Join Larian Studios, a multi-award-winning game development company renowned for crafting high-quality role-playing games like Baldur’s Gate 3 and Divinity: Original Sin 2. We are on the lookout for a talented Senior Tools Programmer to become an integral part of our team as we embark on exciting new projects. Your expertise will be pivotal in enhancing our development tools, ensuring that we continue to deliver the exceptional gaming experiences our fans expect.

Engage in operational and maintenance tasks, particularly within our Windows Server Guard system, addressing incidents, implementing changes, and handling non-standard tasks in our ITSM platform.Document the solutions you develop to build a knowledge base.Utilize your problem-solving skills to tackle technical challenges effectively.Conduct performance analysis to optimize system efficiency.

Waymo is revolutionizing transportation with its autonomous driving technology, aiming to become the world's most trusted driver. Originating from the Google Self-Driving Car Project in 2009, Waymo focuses on creating the Waymo Driver—The World’s Most Experienced Driver™—to enhance mobility access and prevent the tragic loss of lives due to traffic accidents. With over ten million rider-only trips and the experience of autonomously traveling more than 100 million miles on public roads, Waymo is leading the charge in the self-driving industry.The Waymo Onboard Infrastructure team is responsible for the foundational software and infrastructure of various components within the Waymo self-driving ecosystem. Our work includes everything from low-level system software to high-bandwidth data logging, inter-process communication (IPC), performance analysis, and comprehensive debugging. We collaborate closely with teams in Hardware, Compute, Sensor, Perception, Behavior, and Machine Learning to create the most efficient and low-latency self-driving solutions available.As a member of the System Software Team, you will focus on the primary compute node of Waymo's on-vehicle compute platform, an integrated embedded system. If you have a passion for building embedded systems with innovative compute hardware and enjoy collaborating with engineering teams that leverage your work, you will thrive in this role.

Location: Poland About Us: RTB House is an innovative global firm specializing in cutting-edge marketing technologies for leading brands and agencies worldwide. Our proprietary ad-buying engine is the first globally to harness the full potential of Deep Learning algorithms, empowering advertisers to achieve remarkable results at every stage of the customer journey. The Bidding Platform Team plays a pivotal role in our company's success. We collaborate to develop system modules and components that proficiently manage over 24 million queries per second, maintaining an impressive low latency of 50 ms. Your Responsibilities: Architect and develop a diverse range of modules and components within a system that efficiently handles over 24 million queries per second with minimal latency. Optimize developed software focusing on response time and resource utilization. Guarantee the reliability and scalability of implemented solutions. Design performance and correctness tests for new system components. Evaluate new technologies for potential application in production environments. Construct tools for monitoring and analyzing production system operations. Continuously enhance existing tools and processes for improved efficiency.