Senior TypeScript Engineer

🏢 Summary: Senior TypeScript Engineer role focused on building and maintaining internal tools, web applications, and TypeScript libraries in a Deep Learning-powered AdTech environment. The position involves working with modern frameworks, shaping project tech stacks, and solving complex engineering challenges. Candidates will work with cloud technologies, testing practices, and scalable backend/frontend solutions. 🗂️ Requirements: Strong knowledge of TypeScript, Strong knowledge of Node.js, Experience with NestJS, Experience with React, Experience with Next.js, Experience with Google Cloud Platform, Experience with Docker, Minimum 5 years of professional experience, Knowledge of OOP principles, Knowledge of clean code and clean architecture, Familiarity with design patterns, Experience writing unit tests, Experience writing end-to-end tests, Very good knowledge of Git, Very good knowledge of Linux, Solid understanding of SQL, Communicative English 📃 Skills: TypeScript, Node.js, NestJS, React, Next.js, GCP, Docker, Git, Linux, SQL, OOP 🏢 Description: We Are: RTB House is a next-generation performance demand-side platform (DSP) that uses proprietary Deep Learning AI algorithms to help brands grow. The company is the market leader in driving performance using Deep Learning across the entire purchase funnel. Founded in 2012, and now operating in 90+ markets, RTB House has always been private-by-design. It embraces first-party advertising and a relentless approach to innovation. RTB House offers end-to-end Deep Learning-powered AdTech products and solutions to maximize conversion, drive new customer acquisition, create engagement, and fuel long-term demand for a global base of clients. As a Senior TypeScript Engineer, you will play a key role in designing, developing, and maintaining internal tools and libraries that support our teams across the organization. You will have the opportunity to work with the latest frameworks and libraries, shape the tech stack for each project, and tackle complex development challenges that require creativity and innovation. You Will: - Develop and maintain internal tools using a variety of technologies. - Build web applications (TypeScript) that support team workflows. - Design, develop, and maintain internal TypeScript libraries. - Select and adapt the most suitable libraries and frameworks for each project. - Solve complex development challenges with a creative, problem-solving approach. Desired Experience: - Strong knowledge of TypeScript and Node.js. - Experience with NestJS. - Hands-on experience with React / Next.js. - Experience with Google Cloud Platform (GCP). - Experience with Docker. - Minimum of 5 years of professional experience with the above technologies. - Knowledge of OOP principles, clean code, and clean architecture. - Familiarity with design patterns and the ability to apply them. - Experience in writing unit tests and end-to-end tests. - Very good knowledge of Git and Linux. - Solid understanding of SQL. - Communicative level of English. - Independence, proactivity, and eagerness to learn and grow. Nice to Have: - Knowledge of Google Analytics or Google Tag Manager. - Previous experience in the AdTech/Advertising industry. We Offer: - The opportunity to contribute to one of the most exciting online projects in Poland with global reach. - Hands-on experience in RTB, the fastest-growing and most innovative area of online advertising. - Development-focused tasks and a strong emphasis on continuous learning and skill improvement. Apply now! You don't need to tick every box to apply. If you are passionate about digital marketing, send us your CV, and we'll review it.

🏢 Summary: Senior TypeScript Engineer role focused on designing, developing, and maintaining internal tools and libraries to support organizational workflows. The position involves building TypeScript-based web applications, shaping the tech stack, and solving complex development challenges using modern frameworks and cloud technologies. The role emphasizes clean architecture, testing, and scalable solutions in a cloud environment. 🗂️ Requirements: Minimum 5 years of professional experience with TypeScript and Node.js, Strong knowledge of TypeScript and Node.js, Experience with NestJS, Hands-on experience with React or Next.js, Experience with Google Cloud Platform, Experience with Docker, Knowledge of OOP principles and clean architecture, Ability to apply design patterns, Experience writing unit tests and end-to-end tests, Very good knowledge of Git, Very good knowledge of Linux, Solid understanding of SQL, Communicative level of English 📃 Skills: TypeScript, Node.js, NestJS, React, Next.js, GCP, Docker, SQL, Git, Linux, OOP 🏢 Description: Location: Poland We Are: RTB House is a next-generation performance demand-side platform (DSP) that uses proprietary Deep Learning AI algorithms to help brands grow. The company is the market leader in driving performance using Deep Learning across the entire purchase funnel. Founded in 2012, and now operating in 90+ markets, RTB House has always been private-by-design. It embraces first-party advertising and a relentless approach to innovation. RTB House offers end-to-end Deep Learning-powered AdTech products and solutions to maximize conversion, drive new customer acquisition, create engagement, and fuel long-term demand for a global base of clients. As a Senior TypeScript Engineer , you will play a key role in designing, developing, and maintaining internal tools and libraries that support our teams across the organization. You will have the opportunity to work with the latest frameworks and libraries, shape the tech stack for each project, and tackle complex development challenges that require creativity and innovation. You Will: Develop and maintain internal tools using a variety of technologies. Build web applications (TypeScript) that support team workflows. Design, develop, and maintain internal TypeScript libraries. Select and adapt the most suitable libraries and frameworks for each project. Solve complex development challenges with a creative, problem-solving approach. Desired Experience: Strong knowledge of TypeScript and Node.js . Experience with NestJS . Hands-on experience with React / Next.js . Experience with Google Cloud Platform (GCP) . Experience with Docker . Minimum of 5 years of professional experience with the above technologies. Knowledge of OOP principles, clean code, and clean architecture. Familiarity with design patterns and the ability to apply them. Experience in writing unit tests and end-to-end tests. Very good knowledge of Git and Linux . Solid understanding of SQL . Communicative level of English . Independence, proactivity, and eagerness to learn and grow. Nice to Have: Knowledge of Google Analytics or Google Tag Manager . Previous experience in the AdTech/Advertising industry . We Offer: The opportunity to contribute to one of the most exciting online projects in Poland with global reach. Hands-on experience in RTB , the fastest-growing and most innovative area of online advertising. Development-focused tasks and a strong emphasis on continuous learning and skill improvement. Apply now! You don't need to tick every box to apply. If you are passionate about digital marketing, send us your CV, and we'll review it.

🏢 Summary: Senior TypeScript Engineer role focused on designing, developing, and maintaining internal tools and libraries using modern TypeScript-based technologies. The position involves building web applications, shaping the tech stack, and solving complex engineering challenges in a Deep Learning-driven AdTech environment. The offer includes work on globally scaled projects with strong emphasis on innovation and continuous development. 🗂️ Requirements: Strong knowledge of TypeScript, Strong knowledge of Node.js, Experience with NestJS, Experience with React, Experience with Next.js, Experience with Google Cloud Platform (GCP), Experience with Docker, Minimum 5 years of professional experience with listed technologies, Knowledge of OOP principles, Knowledge of clean code and clean architecture, Familiarity with design patterns, Experience writing unit tests, Experience writing end-to-end tests, Very good knowledge of Git, Very good knowledge of Linux, Solid understanding of SQL, Communicative level of English 📃 Skills: TypeScript, Node.js, NestJS, React, Next.js, GCP, Docker, Git, Linux, SQL, OOP, TDD 🏢 Description: We Are: RTB House is a next-generation performance demand-side platform (DSP) that uses proprietary Deep Learning AI algorithms to help brands grow. The company drives performance using Deep Learning across the entire purchase funnel and offers end-to-end Deep Learning-powered AdTech products and solutions to maximize conversion, drive customer acquisition, create engagement, and fuel long-term demand for a global client base. Description: As a Senior TypeScript Engineer, you will design, develop, and maintain internal tools and libraries that support teams across the organization. You will work with modern frameworks and libraries, shape the tech stack for each project, and solve complex development challenges requiring creativity and innovation. Responsibilities: - Develop and maintain internal tools using various technologies. - Build web applications (TypeScript) that support team workflows. - Design, develop, and maintain internal TypeScript libraries. - Select and adapt suitable libraries and frameworks for each project. - Solve complex development challenges with a problem-solving approach. Desired Experience: - Strong knowledge of TypeScript and Node.js. - Experience with NestJS. - Hands-on experience with React / Next.js. - Experience with Google Cloud Platform (GCP). - Experience with Docker. - Minimum of 5 years of professional experience with the above technologies. - Knowledge of OOP principles, clean code, and clean architecture. - Familiarity with design patterns and ability to apply them. - Experience in writing unit tests and end-to-end tests. - Very good knowledge of Git and Linux. - Solid understanding of SQL. - Communicative level of English. - Independence, proactivity, and eagerness to learn and grow. Nice to Have: - Knowledge of Google Analytics or Google Tag Manager. - Previous experience in the AdTech/Advertising industry. Benefits: - Opportunity to contribute to a high-impact online project with global reach. - Hands-on experience in RTB and innovative online advertising solutions. - Development-focused tasks with strong emphasis on continuous learning and skill improvement.

🏢 Summary: Mid+/Senior Software Engineer role focused on designing and developing internal automation and monitoring platforms supporting a real-time bidding system. The position involves building reusable components, internal Python libraries, and scalable microservices-based solutions with strong emphasis on API design and reliability. It offers hands-on work with modern backend technologies and cloud infrastructure in a high-impact environment. 🗂️ Requirements: Solid experience in backend development with Python, Experience building platforms, frameworks, or developer tools, Experience with relational databases and writing efficient SQL queries, Hands-on experience designing RESTful or GraphQL APIs, Experience with asynchronous programming, Understanding of microservices architecture and system design, Experience writing and maintaining unit and integration tests, Ability to design scalable and extensible systems 📃 Skills: Python, FastAPI, PostgreSQL, BigQuery, GraphQL, Ariadne, SQL, Pub/Sub, Pydantic, dataclasses, Pytest, Sentry, Prometheus, Grafana, GitHub, GCP, Kubernetes, REST 🏢 Description: Location: Poland We Are: RTB House is a global company that provides state-of-the-art marketing technologies for top brands and agencies worldwide. Its proprietary ad-buying engine is the first in the world to be powered entirely by Deep Learning algorithms, enabling advertisers to generate outstanding results and reach their goals at every stage of the funnel. We are looking for a Mid+/Senior Software Engineer to join our internal team at RTB House. You will work on applications and tools that directly support our real-time bidding business, collaborating with experienced engineers and product teams. This position is ideal for developers who want to grow their skills, solve real-world problems, and build reliable software that makes a visible difference. You Will: Design, develop, and maintain our internal Automation and Monitoring platforms. Design and build new, reusable components and 'steps' for our low-code automation platform, enabling teams across the company to build their own workflows. Contribute to the development of internal Python libraries and shared frameworks that are the foundation for other services. Write and maintain unit/integration tests to ensure platform reliability and code quality. Identify issues and propose improvements to enhance platform architecture, API design, and framework usability. Collaborate with other engineering teams to understand their needs and deliver new platform capabilities. Apply best practices in API design, microservices architecture, and building extensible systems. Desired Experience: Solid experience in backend development, ideally in building platforms, frameworks, or developer tools with Python. Familiarity with relational databases and ability to write efficient SQL queries. Deep understanding and hands-on experience in designing clean, extensible APIs (RESTful, GraphQL). Experience in asynchronous programming. Good understanding of system design concepts related to microservices architecture, scalability, and multi-tenant platforms. Experience with writing and maintaining tests. Problem-solving skills and the ability to work methodically through complex architectural challenges. Good communication skills and ability to work in a team. Selected Technologies: Backend: Python, FastAPI Databases: PostgreSQL, BigQuery GraphQL: Ariadne Messaging: Google Pub/Sub Data Handling & Validation: Pydantic, dataclasses Testing: Pytest Monitoring: Sentry, Prometheus, Grafana CI/CD: GitHub Actions Cloud: GCP, Kubernetes We Offer: Being part of a small team with a high degree of autonomy and decision-making Access to the latest technology in the developed solution Opportunity to build and improve our own products, where long-term quality and reliability truly matter Participation in one of the most interesting projects of the online industry in Poland and one of the fastest growing technology companies in Europe

🏢 Summary: Mid+/Senior Software Engineer role focused on building and maintaining internal automation and monitoring platforms that support real-time bidding systems. The position involves developing reusable components, internal Python libraries, and scalable APIs within a microservices architecture. The engineer will collaborate with cross-functional teams to deliver reliable, extensible backend solutions. 🗂️ Requirements: Solid backend development experience with Python, Experience building platforms, frameworks, or developer tools, Experience with relational databases and writing efficient SQL queries, Experience designing RESTful or GraphQL APIs, Experience with asynchronous programming, Understanding of microservices architecture and system design, Experience writing and maintaining unit and integration tests, Ability to design scalable and extensible systems 📃 Skills: Python, FastAPI, PostgreSQL, BigQuery, GraphQL, Ariadne, SQL, Pub/Sub, Pydantic, dataclasses, Pytest, Sentry, Prometheus, Grafana, GitHub, GCP, Kubernetes, REST, Microservices 🏢 Description: Location: Poland We Are: RTB House is a global company that provides state-of-the-art marketing technologies for top brands and agencies worldwide. Its proprietary ad-buying engine is the first in the world to be powered entirely by Deep Learning algorithms, enabling advertisers to generate outstanding results and reach their goals at every stage of the funnel. We are looking for a Mid+/Senior Software Engineer to join our internal team at RTB House. You will work on applications and tools that directly support our real-time bidding business, collaborating with experienced engineers and product teams. This position is ideal for developers who want to grow their skills, solve real-world problems, and build reliable software that makes a visible difference. You Will: Design, develop, and maintain our internal Automation and Monitoring platforms. Design and build new, reusable components and 'steps' for our low-code automation platform, enabling teams across the company to build their own workflows. Contribute to the development of internal Python libraries and shared frameworks that are the foundation for other services. Write and maintain unit/integration tests to ensure platform reliability and code quality. Identify issues and propose improvements to enhance platform architecture, API design, and framework usability. Collaborate with other engineering teams to understand their needs and deliver new platform capabilities. Apply best practices in API design, microservices architecture, and building extensible systems. Desired Experience: Solid experience in backend development, ideally in building platforms, frameworks, or developer tools with Python. Familiarity with relational databases and ability to write efficient SQL queries. Deep understanding and hands-on experience in designing clean, extensible APIs (RESTful, GraphQL). Experience in asynchronous programming. Good understanding of system design concepts related to microservices architecture, scalability, and multi-tenant platforms. Experience with writing and maintaining tests. Problem-solving skills and the ability to work methodically through complex architectural challenges. Good communication skills and ability to work in a team. Selected Technologies: Backend: Python, FastAPI Databases: PostgreSQL, BigQuery GraphQL: Ariadne Messaging: Google Pub/Sub Data Handling & Validation: Pydantic, dataclasses Testing: Pytest Monitoring: Sentry, Prometheus, Grafana CI/CD: GitHub Actions Cloud: GCP, Kubernetes We Offer: Being part of a small team with a high degree of autonomy and decision-making Access to the latest technology in the developed solution Opportunity to build and improve our own products, where long-term quality and reliability truly matter Participation in one of the most interesting projects of the online industry in Poland and one of the fastest growing technology companies in Europe

🏢 Summary: The offer is for a Mid+/Senior Software Engineer to build and enhance internal automation and monitoring platforms supporting a real-time bidding business. The role focuses on backend development, reusable components, internal frameworks, and scalable microservices-based systems. It involves close collaboration with engineering teams to deliver reliable, extensible, and high-quality platform solutions. 🗂️ Requirements: Solid backend development experience with Python, Experience building platforms, frameworks, or developer tools, Ability to design clean, extensible APIs (RESTful or GraphQL), Experience with relational databases and writing efficient SQL queries, Experience in asynchronous programming, Understanding of microservices architecture and system design, Experience writing and maintaining unit and integration tests, Knowledge of scalability and multi-tenant architectures 📃 Skills: Python, FastAPI, PostgreSQL, BigQuery, GraphQL, Ariadne, SQL, Pub/Sub, Pydantic, dataclasses, Pytest, Sentry, Prometheus, Grafana, GitHub, GCP, Kubernetes 🏢 Description: Location: Poland We Are: RTB House is a global company that provides state-of-the-art marketing technologies for top brands and agencies worldwide. Its proprietary ad-buying engine is the first in the world to be powered entirely by Deep Learning algorithms, enabling advertisers to generate outstanding results and reach their goals at every stage of the funnel. We are looking for a Mid+/Senior Software Engineer to join our internal team at RTB House. You will work on applications and tools that directly support our real-time bidding business, collaborating with experienced engineers and product teams. This position is ideal for developers who want to grow their skills, solve real-world problems, and build reliable software that makes a visible difference. You Will: Design, develop, and maintain our internal Automation and Monitoring platforms. Design and build new, reusable components and 'steps' for our low-code automation platform, enabling teams across the company to build their own workflows. Contribute to the development of internal Python libraries and shared frameworks that are the foundation for other services. Write and maintain unit/integration tests to ensure platform reliability and code quality. Identify issues and propose improvements to enhance platform architecture, API design, and framework usability. Collaborate with other engineering teams to understand their needs and deliver new platform capabilities. Apply best practices in API design, microservices architecture, and building extensible systems. Desired Experience: Solid experience in backend development, ideally in building platforms, frameworks, or developer tools with Python. Familiarity with relational databases and ability to write efficient SQL queries. Deep understanding and hands-on experience in designing clean, extensible APIs (RESTful, GraphQL). Experience in asynchronous programming. Good understanding of system design concepts related to microservices architecture, scalability, and multi-tenant platforms. Experience with writing and maintaining tests. Problem-solving skills and the ability to work methodically through complex architectural challenges. Good communication skills and ability to work in a team. Selected Technologies: Backend: Python, FastAPI Databases: PostgreSQL, BigQuery GraphQL: Ariadne Messaging: Google Pub/Sub Data Handling & Validation: Pydantic, dataclasses Testing: Pytest Monitoring: Sentry, Prometheus, Grafana CI/CD: GitHub Actions Cloud: GCP, Kubernetes We Offer: Being part of a small team with a high degree of autonomy and decision-making Access to the latest technology in the developed solution Opportunity to build and improve our own products, where long-term quality and reliability truly matter Participation in one of the most interesting projects of the online industry in Poland and one of the fastest growing technology companies in Europe

🏢 Summary: Mid+/Senior Software Engineer role focused on building and enhancing internal automation and monitoring platforms supporting a real-time bidding system. The position involves developing reusable components, internal Python libraries, and scalable APIs within a microservices architecture. The role emphasizes reliability, extensibility, and close collaboration with engineering teams to deliver robust platform capabilities. 🗂️ Requirements: Solid backend development experience with Python, Experience building platforms, frameworks, or developer tools, Knowledge of relational databases and writing efficient SQL queries, Experience designing RESTful or GraphQL APIs, Experience in asynchronous programming, Understanding of microservices architecture and scalability, Experience writing and maintaining unit and integration tests, Knowledge of system design for multi-tenant platforms 📃 Skills: Python, FastAPI, PostgreSQL, BigQuery, GraphQL, Ariadne, SQL, Pub/Sub, Pydantic, dataclasses, Pytest, Sentry, Prometheus, Grafana, GitHub, GCP, Kubernetes, REST, Microservices 🏢 Description: Location: Poland We Are: RTB House is a global company that provides state-of-the-art marketing technologies for top brands and agencies worldwide. Its proprietary ad-buying engine is the first in the world to be powered entirely by Deep Learning algorithms, enabling advertisers to generate outstanding results and reach their goals at every stage of the funnel. We are looking for a Mid+/Senior Software Engineer to join our internal team at RTB House. You will work on applications and tools that directly support our real-time bidding business, collaborating with experienced engineers and product teams. This position is ideal for developers who want to grow their skills, solve real-world problems, and build reliable software that makes a visible difference. You Will: Design, develop, and maintain our internal Automation and Monitoring platforms. Design and build new, reusable components and 'steps' for our low-code automation platform, enabling teams across the company to build their own workflows. Contribute to the development of internal Python libraries and shared frameworks that are the foundation for other services. Write and maintain unit/integration tests to ensure platform reliability and code quality. Identify issues and propose improvements to enhance platform architecture, API design, and framework usability. Collaborate with other engineering teams to understand their needs and deliver new platform capabilities. Apply best practices in API design, microservices architecture, and building extensible systems. Desired Experience: Solid experience in backend development, ideally in building platforms, frameworks, or developer tools with Python. Familiarity with relational databases and ability to write efficient SQL queries. Deep understanding and hands-on experience in designing clean, extensible APIs (RESTful, GraphQL). Experience in asynchronous programming. Good understanding of system design concepts related to microservices architecture, scalability, and multi-tenant platforms. Experience with writing and maintaining tests. Problem-solving skills and the ability to work methodically through complex architectural challenges. Good communication skills and ability to work in a team. Selected Technologies: Backend: Python, FastAPI Databases: PostgreSQL, BigQuery GraphQL: Ariadne Messaging: Google Pub/Sub Data Handling & Validation: Pydantic, dataclasses Testing: Pytest Monitoring: Sentry, Prometheus, Grafana CI/CD: GitHub Actions Cloud: GCP, Kubernetes We Offer: Being part of a small team with a high degree of autonomy and decision-making Access to the latest technology in the developed solution Opportunity to build and improve our own products, where long-term quality and reliability truly matter Participation in one of the most interesting projects of the online industry in Poland and one of the fastest growing technology companies in Europe

🏢 Summary: Software Engineer role focused on backend and microservices development, with responsibilities spanning fullstack features and internal tools. The position involves designing and maintaining APIs, system integrations, dashboards, and data-driven solutions in a large-scale AdTech environment. The role requires strong experience in Python and JavaScript technologies within distributed systems. 🗂️ Requirements: 4+ years of professional software development experience, Strong knowledge of Python, Strong knowledge of JavaScript, Experience with Node.js, Experience with HTML, Experience with CSS, Solid understanding of SQL databases, Solid understanding of NoSQL databases, Experience with Docker or containerization, Understanding of software design patterns, Knowledge of microservices architecture, Experience building APIs and system integrations, Fluent English 📃 Skills: Python, JavaScript, Node.js, HTML, CSS, SQL, NoSQL, Docker, Microservices, APIs 🏢 Description: We Are: RTB House is a next-generation performance demand-side platform (DSP) that uses proprietary Deep Learning AI algorithms to help brands grow. The company is the market leader in driving performance using Deep Learning across the entire purchase funnel. Founded in 2012, and now operating in 90+ markets, RTB House has always been private-by-design. It embraces first-party advertising and a relentless approach to innovation. RTB House offers end-to-end Deep Learning-powered AdTech products and solutions to maximize conversion, drive new customer acquisition, create engagement, and fuel long-term demand for a global base of clients. We are looking for a Software Engineer with solid experience in backend and microservices development to join our team. This person will help design, build, and maintain web applications, microservices and internal tools, while also contributing to frontend development when needed. You Will: Design, develop, and maintain microservices, APIs, and system integrations. Contribute to frontend and backend features as part of fullstack development. Support ongoing development requests from our ticketing system and publisher integrations. Build and maintain internal dashboards, reports, and data visualizations to support business teams. Collaborate with other engineers to ensure code quality, scalability, and efficiency. Desired experience: 4+ years of professional experience in software development. Strong knowledge of Python and JavaScript/Node.js. Experience with common web technologies (HTML, CSS) and frameworks. Solid understanding of SQL and NoSQL databases. Familiarity with Docker / containerization. Awareness of software design patterns and good coding practices. Fluent in English & Polish and comfortable working in a distributed, multidisciplinary team. We offer: Competitive Compensation: We offer an attractive salary package with significant growth opportunities Cutting-edge Technology: Engage with the latest technologies on large-scale, dynamic projects Wellbeing: extremely flexible working cooperation - you work when it is convenient for you and devote as much time as you can; you can work fully remotely Purpose-Driven Work: being at the heart of the system, your growing knowledge and competencies will be used in practical applications directly connected to business results

🏢 Summary: Senior Technical Researcher/Engineer role focused on researching, prototyping, and evaluating cutting-edge AdTech technologies for large-scale systems. The position combines deep technical research, programming, and experimentation to assess feasibility and integrate new solutions, including privacy mechanisms and mobile optimizations. You will build PoCs and collaborate cross-functionally to enhance performance, compliance, and ML-driven capabilities. 🗂️ Requirements: 5+ years experience as researcher or engineer, Strong programming skills, Ability to understand large-scale systems and architectures, Experience building Proof of Concepts, Ability to evaluate and integrate new technologies, Experience with privacy mechanisms and browser technologies, Experience with mobile platforms Android and iOS, Collaboration with cross-functional technical teams 📃 Skills: Python, Java, Scala, TypeScript, JavaScript, PyTorch, NumPy, Pandas, Jupyter, BigQuery, GCP, DeepLearning, MachineLearning, Android, iOS, GitHub 🏢 Description: Location: Poland We Are: RTB House is a global company that provides state-of-the-art marketing technologies for top brands and agencies worldwide. Its proprietary ad-buying engine is the first in the world to be powered entirely by Deep Learning algorithms, enabling advertisers to generate outstanding results and reach their goals at every stage of the funnel. You Will: As a Senior Technical Researcher/Engineer within the AdTech Technical Research Team , you'll play a pivotal role in exploring and understanding the latest technologies in the ad tech domain. You'll be responsible for conducting in-depth research, experimenting with new technologies, and collaborating with cross-functional teams to assess their potential for integration into our systems. Your role will involve a blend of programming, research, and analytical skills to evaluate the effectiveness and feasibility of various ad tech solutions. Desired Experience: 5+ years of experience as researcher or engineer. Strong technical proficiency: programming skills and the ability to understand large and complex systems and architectures. Openness and willingness to experiment & learn: readiness to take on new challenges, explore new technologies, and continuously expand knowledge in the ad tech domain. Independence & proactive attitude: ability to take initiative, make decisions, and act without excessive supervision while maintaining a high standard. Goal-oriented mindset: focus on achieving specific project goals and adaptability in a dynamic environment. Collaboration & communication: ability to work effectively with teammates and other teams, clearly sharing knowledge and cooperating with external organizations (e.g. major browser vendors, W3C, GitHub discussions). Ability to build Proof of Concepts (PoCs): creating prototypes and experimental solutions to evaluate effectiveness and utility. Selected Technologies & Projects: Python, Java, Scala, TypeScript/JavaScript PyTorch, NumPy, Pandas Jupyter Notebooks BigQuery, GCP Browser Engines Assessing new privacy mechanisms (e.g. Privacy Sandbox APIs) by building PoCs, testing, and suggesting improvements (via GitHub issues or meetings). The goal is to evaluate their feasibility, ensure compliance, and enhance user privacy. Exploring solutions for Android and iOS, including creating prototypes to improve performance on mobile platforms. This requires close collaboration with other teams and leveraging ML opportunities. Many more — including your own ideas! We Offer: Compensation: an attractive salary and career growth opportunities Technology: access to the latest technologies and real opportunity to use of them in a large-scale and highly dynamic projects; extensive and rich datasets Impact: your contribution will directly influence the company's business results and outcomes globally, while also giving you the chance to mentor less experienced colleagues in the team Wellbeing: extremely flexible conditions – you act when it is convenient for you and devote as much time as you can; you can operate fully remotely Culture: be part of a team of enthusiasts with wide experience in ML who willingly share their knowledge and learnings on a daily basis, no BS environment Apply now! You don't need to tick every box to apply. If you are passionate about digital marketing, send us your CV, and we'll review it.

🏢 Summary: Senior Engineer role focused on designing and leading high-performance, highly scalable components of a real-time bidding platform processing over 20 million requests per second. The position involves building, optimizing and maintaining distributed HTTP/gRPC services and batch jobs in Java and Python, while ensuring observability, reliability and top engineering standards. The role combines deep technical expertise with hands-on leadership in complex, cross-team projects. 🗂️ Requirements: Excellent understanding of complex IT systems from hardware to algorithms, Very good knowledge of Internet protocols (DNS, HTTP, cookies), Knowledge of concurrent programming and distributed systems, Ability to monitor, analyze and troubleshoot production systems, Ability to analyze and optimize system performance, Knowledge of high scalability and high availability concepts, Fluent English and Polish (C1) 📃 Skills: Java, Python, DNS, HTTP, gRPC, Aerospike, Memcached, GCP, BigQuery, MinIO, Kafka, Clickhouse, PostgreSQL, Elasticsearch, Kubernetes, Prometheus, Jenkins, Graphite 🏢 Description: RTB House is a global company that provides state-of-the-art marketing technologies for top brands and agencies worldwide. Its proprietary ad-buying engine is the first in the world to be powered entirely by Deep Learning algorithms, enabling advertisers to generate outstanding results and reach their goals at every stage of the funnel. We are looking for Senior Engineers to support our Bidding Platform organization which is the core of the RTB business, processing over 20 million requests per second to participate in real-time auctions and display advertisements to customers from 90+ countries. If you want to work on technically complex and demanding solutions, this is the opportunity for you! Our Senior Engineers are experts who combine deep technical expertise with a strong sense of ownership, and they take on Tech Lead roles in complex, cross-team projects. You will: Design and lead implementation of system changes that deliver high performance, scalability and observability for displaying and tracking ads world wide. Develop tools and optimizations to drive measurable improvements in critical user performance metrics. Implement, test, deploy, monitor and maintain (in all aspects, including setting up environment, writing configuration code, monitor production) HTTP / gRPC services and batch jobs in Java and Python, ensuring adherence to the high engineering standards. Provide hands-on technical leadership: solving complex system challenges, participating in planning and scoping of projects, and ensuring the implementation of the highest coding standards through participation in code reviews. Requirements: Excellent understanding of how complex IT systems work - from the hardware level, through software, to algorithms. Very good knowledge of fundamental Internet protocols and technologies (DNS, HTTP, cookies and others). Good knowledge of basic methods of creating concurrent programs and distributed systems (from thread level to geo-distributed clusters level). Practical ability to observe, monitor and analyse the operation of production systems (and draw valuable conclusions from it). The ability to critically analyze the solutions created in terms of performance (from estimating the theoretical performance of the designed systems to detecting and removing actual performance problems in production). General knowledge of issues (typical problems and methods of solving them) in the areas of 'high scalability' and 'high availability'. C1 level in English and Polish. Nice to have: Experience in the AdTech/Real Time Bidding space. Experience contributing to Real User Monitoring (RUM) systems. Selected technologies used: Java, Python Aerospike, Memcached Google Cloud Platform, BigQuery, MinIO Kafka, Clickhouse PostgreSQL Elasticsearch Kubernetes, Prometheus Jenkins, Graphite We Offer: Projects focused on extreme performance and high code quality – solid code reviews are our standard. Collaboration within an interdisciplinary, self-sufficient team (including DevOps, database experts, backend developers, product designers, and QA engineers). Hardware and software tailored to your preferences (e.g., MacBook, AI tool licenses). Flexible working conditions – no core hours, fully remote cooperation possible.