Distributed Systems Engineer

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.

Location: Poland About Us: RTB House is a leading global company that specializes in providing cutting-edge marketing technologies for renowned brands and agencies worldwide. Our unique ad-buying engine stands out as the world's first fully Deep Learning-powered platform, enabling advertisers to achieve exceptional results and meet their objectives throughout every stage of the marketing funnel. We are currently seeking talented engineers to join our Platform Engineering team within the Bidding Platform structure. If you have a passion for system-related topics such as deployment, monitoring, databases, and load balancing, along with experience in leading complex project specifications and coordinating team efforts, we want to hear from you! This is an excellent opportunity for those eager to tackle technically challenging and sophisticated solutions.

Location: Poland (Remote/Flexible) About Us: RTB House is a pioneering global technology company that specializes in cutting-edge marketing solutions for leading brands and agencies around the world. Our innovative ad-buying engine is the first globally to leverage Deep Learning algorithms exclusively, empowering advertisers to achieve remarkable outcomes and fulfill their objectives at every level of the marketing funnel. We are in search of Senior Engineers to join our Bidding Platform team, which forms the backbone of our RTB operations, processing over 20 million requests per second to engage in real-time auctions and deliver advertisements to audiences across more than 90 countries. If you are eager to tackle technically intricate challenges and develop robust solutions, this role is tailored for you! Your Responsibilities: Architect and spearhead the implementation of system modifications to enhance performance, scalability, and observability for global ad display and tracking. Create tools and optimizations that yield measurable advancements in critical user performance metrics. Develop, test, deploy, monitor, and maintain HTTP/gRPC services and batch jobs in Java and Python, ensuring compliance with high engineering standards across all aspects, including setup, configuration coding, and production monitoring. Offer technical leadership: tackle complex system challenges, engage in project planning and scoping, and uphold the highest coding standards through active participation in code reviews.

Join AECOM's Enterprise Capabilities as a Principal Engineer specializing in HV Substations Secondary in Poland!As a key member of our team, you will be responsible for creating and delivering designs for secondary electrical systems within transmission and distribution projects. Your duties will include, but are not limited to:Designing protection and control systems, which encompass relay settings, protection schemes, and interlock systems for substations.Preparing single line diagrams (SLDs), protection logic diagrams, metering layouts, and cable termination diagrams.Creating electrical interconnection diagrams, termination diagrams, cable schedules, and other essential documentation for the effective installation and operation of secondary systems.Conducting relay coordination studies (overcurrent, earth fault, motor protection, distance protection) including relay setting calculations and fault analysis.Performing power system studies, such as load flow analysis, short circuit studies, transient stability analysis, motor starting studies, and arc flash studies.Developing control and relay panel layouts, including general arrangement (GA) drawings, functional block diagrams, and bill of materials (BOMs).Designing SCADA communication schemes and ensuring system integration for protection systems to facilitate seamless interfacing between control and field devices.Reviewing and verifying design documentation to guarantee compliance with industry standards (IEC, IEEE) and utility specifications.Providing support during commissioning and testing phases, including Factory Acceptance Testing (FAT) and site integration of secondary systems.Creating algorithms to enhance system functionality, including fault detection, relay coordination, and stability improvement.Coordinating across disciplines, collaborating with other engineering teams to ensure the integration of secondary systems with primary infrastructure.Preparing external connection tables, cable schedules, and other design documentation as dictated by project specifications.

AECOM Enterprise Capabilities is currently in search of a highly skilled Principal Engineer specializing in HV Substations Primary to join our dynamic team in Poland.The role encompasses the preparation of innovative designs and deliverables associated with primary electrical systems for transmission and distribution projects. Responsibilities will include, but are not limited to:Designing primary substation systems, including AIS/GIS configurations, transformer installations, circuit breaker selection, busbar arrangements, switchgear layouts, and disconnectors for voltages up to 800kV.Creating single-line diagrams (SLDs), general arrangement (GA) layouts, equipment sizing, and layout plans for substations and transmission systems.Conducting short-circuit force calculations, busbar sizing, fault current analysis, and designing equipment protection to ensure system stability and safety.Designing earthing systems, including grounding layouts, ground grid systems, and lightning protection mechanisms for substations.Integrating HVDC and HVAC systems, including converter stations, ensuring seamless compatibility with the overall substation design.Developing transformer layouts, encompassing oil containment, busduct routing, and secondary system interfaces.Optimizing substation layouts for both new and upgraded facilities, considering constraints such as space, equipment accessibility, and construction requirements.Reviewing and enhancing control and protection systems for primary substations, ensuring alignment with secondary systems and compliance with grid operator regulations.Collaborating with civil teams to design and integrate foundations, steel structures, and electrical cable routes for full integration with primary systems.Producing equipment specification documents, bill of materials (BOM), and providing procurement support to ensure appropriate equipment selection based on project criteria.Preparing electrical interconnection diagrams, termination diagrams, cable schedules, and other documentation essential for the installation and operation of primary systems.Conducting detailed design and review of auxiliary systems, such as cooling systems, auxiliary power supplies, and battery systems for substations.Designing underground cable systems, including cable sizing, routing, and integration into existing networks, particularly for HV cables.Coordinating with external vendors and contractors to guarantee that the supply and installation of equipment align with design specifications and project needs.

AECOM is looking for a skilled Senior Engineer specializing in Transmission and Distribution (Primary). In this pivotal role, you will spearhead the design engineering for High Voltage Substation projects, ensuring that engineering deliverables related to primary circuits are produced on time and to the highest quality standards.Your focus will be on executing project design packages with technical precision while guiding and coordinating CAD designers and drafters in the development of comprehensive drawings and models. The position demands extensive hands-on experience in primary engineering for substations, coupled with effective project delivery in the transmission and distribution sectors.Key ResponsibilitiesDeliver comprehensive primary circuit engineering packages for HV Substation projects, aligning with project scope, timelines, and quality standards.Create and generate primary substation design deliverables, including Single Line Diagrams (SLD), substation layouts and equipment arrangements, busbar and conductor designs, electrical clearances and safety protocols, and earthing and lightning protection calculations.Ensure adherence to project specifications, client standards, and international guidelines (IEC / IEEE / AS).Prepare and uphold high-quality engineering documentation and design reports.

AECOM Enterprise Capabilities is in search of a Senior Engineer specializing in Transmission & Distribution (Secondary). This pivotal role involves overseeing the design and implementation of secondary engineering systems for High Voltage Substations, which encompasses protection, control, automation, and communication systems. The focus is on delivering superior engineering outputs throughout all phases of projects including Front End Engineering Design (FEED), Detailed Design, Construction, and Commissioning support, while ensuring adherence to technical standards, constructability, and reliable substation operations.Generate and present secondary design documentation for High Voltage Substations.Formulate protection and control philosophies, contributing to Basis of Design documentation.Execute engineering designs for AC/DC auxiliary systems, control circuits, interlocking, and automation interfaces.Assist in relay configuration and protection scheme design (distance, differential, overcurrent, busbar, transformer protection, etc.).Ensure designs are feasible, constructible, and consistent with project scope, timeline, and budget.Collaborate closely with the Project Engineer and/or Project Manager to facilitate engineering planning, monitor deliverables, and ensure technical coordination.Work in conjunction with primary, civil, and SCADA/telecom disciplines to guarantee an integrated and clash-free design.Provide limited technical support to junior engineers when required, without formal mentorship obligations.

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.

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.

We are seeking a highly skilled Senior Microsoft Platform/System Engineer to join our dynamic team at Altersolutions in Warsaw. In this role, you will leverage your deep expertise in Microsoft technologies to deliver innovative solutions that drive business success. Your contributions will be instrumental in enhancing our clients' systems and infrastructure.As a key member of our engineering team, you will collaborate with cross-functional teams to design, implement, and optimize Microsoft-based solutions. Your experience will help guide best practices and ensure the highest quality of service delivery.

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.

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.

Oversee the technical management of SimCorp Dimension along with associated enterprise applications.Diagnose and resolve incidents within stipulated operational timelines.Conduct routine software updates and maintenance tasks.Ensure technical documentation is maintained and regularly updated.

Become a part of Hostinger's exciting journey and experience rapid growth! At Hostinger, we are dedicated to revolutionizing online success, harnessing the power of AI while being driven by our passionate team. With over 900 skilled professionals and more than 4 million clients across 150 countries, we empower creators and entrepreneurs to realize their visions more swiftly and effortlessly than ever before.Our mission: To deliver intuitive tools that enable individuals and small businesses to thrive online with speed and ease.Our culture: Anchored by 10 foundational principles.Our recipe for success: A relentless focus on customer satisfaction, innovative solutions, and exceptional talent.Your role at HostingerWe are in search of a System Engineer to tackle genuine engineering challenges, ensuring the reliability of our systems and laying the groundwork that supports millions of websites globally.You will collaborate with fellow system, software, and network engineers who are passionate about optimizing performance, simplicity, and resilience. Together, you will design, implement, and enhance systems that not only function but also maintain speed and reliability under pressure.This position is not about following existing procedures—it's about creating them. You will delve into the intricacies, automate processes that hinder our progress, and share your insights to strengthen the entire team.Interested in learning more? Reach out to your team: Eimantas Šerpenskas, Head of Web Hosting Infrastructure

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.

Design, develop, and enhance API platforms and application security solutions using Java (JDK 21).Deploy and manage software solutions on the OpenShift platform.Create and maintain documentation to assist the organization in the implementation of developed solutions.Develop tools and procedures for effective monitoring, logging, and deployment optimization.Execute essential operations including patching and certificate management.

Role Overview Tietoevry is looking for a Regular or Senior Test Engineer with experience in embedded systems, Python, and audio technologies. This position is based in Warsaw and focuses on testing and quality assurance for embedded software solutions. What You Will Do Design, develop, and run test plans for embedded audio systems Work closely with the engineering team to ensure software meets quality and performance standards Contribute technical expertise to ongoing projects involving audio technology What We Look For Experience with embedded systems and Python Background in audio technology or testing audio solutions Ability to create and execute test plans

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 AECOM as a skilled Network Designer, specializing in the development and design of water and sewage systems. In this role, you will be responsible for creating innovative and efficient network solutions that meet the needs of our clients. Collaborate with a dynamic team of professionals to ensure the successful execution of projects, from conception through to completion.

WHAT IS BOXBox Inc. (NYSE:BOX) is at the forefront of Intelligent Content Management, revolutionizing how businesses manage their content and foster collaboration. Our innovative platform empowers organizations to secure critical content, streamline business workflows, and leverage enterprise AI to drive success in the AI-first era. Since our inception in 2005, we have simplified operations for leading global firms such as JLL, Morgan Stanley, and Nationwide, with our headquarters located in Redwood City, CA, and offices throughout the United States, Europe, and Asia.By becoming a part of Box, you will play a pivotal role in driving our platform's evolution. Content is the lifeblood of modern work, comprising the myriad files and information exchanged across teams and departments daily. Our mission is to infuse intelligence into content management, enabling our customers to transform their workflows entirely. With the integration of AI and enterprise content, the potential to reshape how organizations collaborate has never been more significant, and at Box, you'll be at the forefront of this transformation. WHY BOX NEEDS YOUAs Box continues to scale its AI capabilities and internal analytics, we are looking for experts to harness these tools to drive smarter business decisions.You will be responsible for designing and deploying AI agents and operational solutions that bolster both IT and business workflows. These agents will be crafted to minimize inaccuracies while prioritizing security in their modeling, data processing, and decision-making. Additionally, you will build and maintain MCP servers and developer tools that yield actionable data insights, facilitating prompt actions for teams. Ultimately, your contributions will link secure, reliable infrastructure with practical AI capabilities, enhancing informed and low-risk decision-making throughout the organization.WHAT YOU’LL DODesign, develop, and implement AI agents to automate and enhance IT and business workflows, ensuring reliable outputs.Establish model validation, monitoring, and fail-safe systems to identify and mitigate incorrect or risky agent behaviors.Architect secure data handling pipelines for data ingestion, storage, access control, and encryption to protect sensitive information.