Senior Software Engineer (C++/Typescript)

🏢 Summary: Frontend Engineer role focused on building and maintaining player-facing desktop game client applications using Electron and modern web technologies. The position centers on creating dynamic, high-quality UIs powered by web APIs and collaborating closely with cross-functional teams. The work includes developing complex frontend features, APIs, and comprehensive testing within a modern web architecture. 🗂️ Requirements: 6+ years of experience with frontend technologies, 5+ years of experience with React, Strong hands-on experience with TypeScript and React, Experience building Electron desktop applications, Experience working with RESTful APIs and web-based APIs, Proficiency in unit, integration, and end-to-end testing, Understanding of modern web architecture, Experience with Git and modern build tools, Ability to build UI from Figma or similar design tools, Knowledge of accessibility standards (WCAG), Bachelor’s degree in Computer Science or related field 📃 Skills: JavaScript, TypeScript, React, Electron, HTML, CSS, REST, API, Storybook, Jest, RTL, Playwright, Git, Webpack, Vite, JSON, XML, Docker, GitHub, AWS, Datadog 🏢 Description: About the role: Our client is one of the largest game studios known for its very successful online MOBA and FPS franchises. You will be part of a Player Platform team responsible for building and maintaining core player-facing client applications used across all the clients’ products. On a daily basis you will be working on the player-facing portion of the Game Client desktop application powered by Electron. The tech stack is JavaScript, TypeScript, React, CSS and HTML. The majority of work will be around building out dynamic and polished UIs in the frontend that are powered by API data which requires solid experience of working with web-based APIs. We leverage Storybook for our component development and use Jest for testing. This role will be embedded into the team and you will collaborate with team members closely including engineers, QA, design and product. You may also work with other partner teams directly. Experience with working on desktop client applications is a plus. Please note, availability to attend afternoon/evening meetings is a requirement for this role as most of the team is located on the US West Coast (LA and Seattle) Responsibilities: Partner closely with Senior Engineers and Design to create and iterate on well crafted user experiences Build out complex Electron applications that support the Game Client development Work with partner teams and platforms to bring experience to life Quickly iterate on prototypes and new areas to find feasible solutions for the products we are building Create, manage and document RESTful APIs Write and execute unit, integration and end-to-end tests, participate in code reviews Required qualifications: 6+ years of experience with Frontend Technologies 5+ years of experience with React Bachelor's or higher degree in Computer Science, Software Engineering, or a related field Strong frontend focus with the skills to dive into backend when needed - comfortable across the stack, but passionate about crafting great user-facing experiences Deep hands-on programming experience with Typescript and React Good understanding of modern web architecture and technologies Attention to detail, including spacing, CSS animations, and user experience nuances Understanding of accessibility standards and guidelines (e.g., WCAG) Aptitude for debugging, analyzing issues, and implementing effective solutions Experience building frontend interfaces directly from design mockups in Figma or similar tools Familiarity with testing frameworks (e.g., Jest, RTL, Playwright) Experience with version control tools (e.g., Git) and build tools (e.g., Webpack, Vite) Proficiency in building RESTful APIs and handling data formats like JSON/XML Effective communication and teamwork skills Nice to have: Experience with building Electron desktop applications Experience with CI/CD - Docker, Github Actions Hands-on experience working with Public Cloud, preferably AWS Experience with observability and monitoring tools, preferably Datadog

🏢 Summary: Senior Software Engineer role focused on building and operating monetization systems for a large-scale live game. The position involves developing and maintaining highly available backend services, web UI surfaces, and client integrations with strong DevOps and reliability practices. You will work across the full stack to support purchasing, rewards, and progression systems with high reliability expectations. 🗂️ Requirements: Strong Java 21 expertise, Experience with distributed systems and service-oriented architecture, Proficiency in REST APIs and SQL databases, Experience with CI/CD systems, Working knowledge of C++ for client integration, Understanding of client-server interactions (HTTP/REST), Proficiency in HTML, CSS, and JavaScript, Experience with Linux environments, Scripting skills in Bash or Python, Experience with observability and monitoring tools, Version control experience, Experience in incident response and live operations 📃 Skills: Java, C++, SQL, REST, HTML, CSS, JavaScript, Linux, Bash, Python, Datadog, Git, Perforce, Jenkins, PagerDuty 🏢 Description: About the role: Our client is an established game studio renowned for its highly successful MOBA and FPS franchises. ​As a Senior Software Engineer on the Monetisations team, you will have the chance to build and operate key player-facing systems that support the purchasing, rewarding, and progression experiences within one of the world’s largest live games.​ You will be responsible for maintaining game systems that are healthy, reliable, and continually evolving. You will work across backend services, deployment pipelines, monitoring systems, and integration points with the Game Client with very high reliability and quality expectations. You must combine a DevOps mindset with the ability to contribute code across the full game technology stack.​By joining the team, you will help accelerate the delivery of upcoming strategic initiatives. You will work on a daily basis with an engineering team based in Dublin (Ireland), but occasional afternoon meetings with other teams based on the US West Coast (LA and Seattle) are also possible. This role requires engineers with strong Java backend skills, solid web UI skills, a DevOps mindset , and familiarity with C++ client integration Responsibilities: Maintaining and improving large-scale distributed systems that support players globally Automate operational processes and reduce team toil (scripts, pipelines, diagnostic tools) Improve observability, monitoring, alerting, and deployment workflows Working on highly available backend services with strong operational rigor Supporting and extending the existing Game Client experience (Web UI surfaces built with HTML/CSS/JS and C++ integration points) Contributing to KTLO efforts , including quality improvements, bug fixes, and feature updates Participating in live operations , including on-call rotation, incident investigation, stability improvements, release validation, and root-cause analysis Collaborating across product, QA, design, art, and data teams to support seasonal content, offers, store changes, and monetization updates Feature delivery within established systems , often spanning multiple pods or workstreams Required Core Technical Skills: Backend Strong Java 21 expertise (main language for service maintenance/development) Distributed systems debugging and service-oriented architecture REST APIs, SQL data stores CI/CD systems (Cloudbees Jenkins ) Game Client Working familiarity with C++ for client integration fixes Understanding of client-server interactions (HTTP/REST) and data flow paths Web Surfaces & UI HTML, CSS, Javascript DevOps Tooling & Reliability Engineering Linux , Bash / Python scripting Observability platforms ( Datadog ) Version Control expertise ( Git , Perforce ) Incident response and postmortem practices ( Pagerduty ) Behavioural Expectations: High ownership over production health and system reliability Clear communicator during high-pressure situations (e.g. live incidents) Autonomy in navigating legacy systems and ambiguous problem spaces Strong collaboration with backend, client, QA, and operations teams Player-first thinking – minimizing downtime, regressions, and impact on players Nice To Have: Experience in the gaming industry, particularly with online multiplayer games Experience working with cross-discipline organizations that build data products

🏢 Summary: Senior Mobile Architect role focused on defining and modernizing cross platform mobile SDKs for digital fraud prevention and customer authentication in financial services. The position involves driving architecture strategy, designing public APIs, ensuring security and performance, and leading SDK migration across iOS and Android. You will collaborate with cross functional teams to deliver scalable, secure, and high quality SDK solutions. 🗂️ Requirements: 10+ years experience in software engineering including mobile architecture, Experience designing and delivering mobile SDKs for external applications, Experience leading SDK modernization and migration without breaking integrations, Strong knowledge of API design, versioning, and backward compatibility, Experience with cross platform SDK packaging and distribution for Android and iOS, Knowledge of modular architecture and dependency management, Experience optimizing SDK performance and binary size, Understanding of mobile security practices and secure storage, Experience with observability tools and release engineering practices, Experience supporting CI CD and release processes 📃 Skills: Kotlin, Java, Swift, ObjectiveC, Gradle, Maven, AAR, XCFramework, SPM, CocoaPods, ProGuard, R8, CI/CD, Keychain, AndroidKeystore, SecureEnclave, Telemetry 🏢 Description: Project overview The project focuses on modernizing a cross platform mobile SDK used for digital fraud prevention and customer authentication in financial services. The goal is to design a scalable and secure architecture that simplifies partner integration, improves performance, and supports long term product growth. Team You will work in a cross functional distributed team that includes mobile engineers, architects, product owners, and security specialists. The team collaborates closely across platforms and regions, contributing to architecture decisions, roadmap planning, and design validation activities. Position overview We are looking for a Senior Mobile Architect who will define and drive the target architecture and modernization strategy for mobile SDKs across iOS and Android platforms. You will establish engineering standards, design public APIs, guide migration strategy, and collaborate with product and engineering teams to ensure consistent and high quality delivery. Technology stack Kotlin, Java, Swift, Objective C, Gradle, Maven, AAR, XCFramework, Swift Package Manager, CocoaPods, ProGuard, R8, CI CD pipelines, telemetry tools, Keychain, Android Keystore, Secure Enclave Responsibilities Define and evolve the target architecture for mobile SDKs across iOS and Android Design and maintain clear and stable public API contracts with versioning strategy Develop modernization roadmap and support incremental migration of existing SDKs Collaborate with engineering and product teams to align architecture with business goals Establish standards for SDK distribution, integration, and lifecycle management Ensure compatibility across platforms, OS versions, and partner environments Drive improvements in SDK stability, performance, and developer experience Optimize SDK footprint including binary size, startup impact, and resource usage Define and enforce security and data protection practices within the SDK Contribute to proof of concept implementations to validate architectural decisions Guide observability practices including logging, telemetry, and error tracking Support CI CD and release processes for consistent and reliable SDK delivery Requirements 10+ years of experience in software engineering including mobile architecture Hands on experience designing and delivering mobile SDKs used by external applications Experience leading modernization initiatives and migrating live SDKs without breaking integrations Strong understanding of API design including versioning and backward compatibility Experience with cross platform SDK packaging and distribution for Android and iOS Knowledge of modular architecture and dependency management strategies Experience optimizing SDK performance including binary size, startup time, and resource usage Understanding of mobile security practices including secure storage and certificate pinning Familiarity with privacy and compliance requirements in mobile applications Experience with observability tools and release engineering practices Strong communication skills and experience collaborating with multiple stakeholders Nice to have Experience in financial services, fraud prevention, or enterprise security solutions Familiarity with anti tampering techniques and runtime protection approaches Experience with remote configuration and feature flag systems Knowledge of platform specific background execution and system constraints Exposure to sensor based or behavioral data processing in mobile applications What We Offer: Vacation days : Up to 26 business days per year. 10 illness/special days off per year (fully paid, no medical papers needed) for all contract types Health and life insurance (Luxmed) MyBenefit platform with Multisport option Internal psychological support service English language classes from the first working day Access to external learning platforms : O’Reilly, LinkedIn Learning, Udemy, and a wide catalog of diverse internal training Flexible workplace : work from the office, from home, or choose a hybrid option Tech Skills Mentoring Program Opportunities to develop as a public speaker, mentor, or technical interviewer Fully paid idle (bench) when not involved in a project Certification reimbursement (AWS, GCP, Microsoft, etc.)

🏢 Summary: Experienced C++ Engineer role within the HERE SDK team, focused on building high‑performance native location-based applications for Android, iOS, and Linux. The position involves developing and optimizing cross-platform SDK components using modern C++ standards and contributing to globally deployed automotive navigation and mapping products. The role requires strong expertise in C++ and system-level programming, with emphasis on quality, performance, and collaboration in an Agile environment. 🗂️ Requirements: Bachelor’s/Master’s/PhD in Computer Science, Software Engineering or related technical field, Strong expertise in C++14, C++17 and C++20, Strong algorithm engineering skills, Experience with embedded development, Cross-platform development experience (Android, iOS, Linux), Strong knowledge of Standard Template Library (STL), Strong object-oriented programming practice, Good understanding of threading and IPC, Experience working in Agile teams, Very good written and spoken English, Experience using AI-assisted development tools responsibly 📃 Skills: C++, C++14, C++17, C++20, STL, Boost, Android, iOS, Linux, IPC, Protobuf, Databases, Git, Agile, GPS 🏢 Description: What's the role? The HERE SDK team provides a set of programming interfaces that enables developers to build immersive native applications while leveraging our powerful maps and services. With features such as routing, guidance, search, interactive 2D and 3D vector maps, the HERE SDK enables developers to build powerful native location‑based applications for platforms like Android, iOS and Linux. Our product is used by millions of customers in mobile phones and moving vehicles. To deliver the best product in the market, we are growing our engineering team and are searching for an excellent C++ Engineer! As a C++ Engineer, you will be a key member of our growing SDK engineering team. This is an experienced position that requires expertise in the C++14, C++17 and C++20 standard. You are motivated to explore and deliver the best possible solutions to our customers with very high quality. You should have a strong passion for technology and a strong customer-centric product sense. You should enjoy working outside the comfort zone and love learning new technologies. Who are you? Ideally, we would like you to have: Bachelor/Master/PhD in Computer Science, Software Engineering or similar technical degree Strong level in algorithm engineering Strong knowledge of C++14/17/20 improvements Experience with embedded development Cross-platform and platform specific development (Android, iOS, Linux flavors) Effective practice of the Standard Template Library Strong practice of object-oriented programming Good understanding of threading and IPC Excellent collaborative and communication skills Experience working in an Agile team Very good command of written and spoken English Experience using AI‑assisted development tools responsibly, with the ability to critically assess and take full ownership of AI‑generated suggestions in complex codebases The following would add extra value to your contribution in our team: Strong knowledge of Boost C++ libraries Experience with unit- and integration-testing Knowledge of location-based services such as mapping, navigation, GPS Emphasis on parallel / async programming Experience with protobuf/protopack Knowledge of Data Bases Experience in using git as a version control system Our culture is founded on openness, collaboration and honesty, with colleagues who are brilliant in their field, resilient, and above all, strive for the best. What we offer: Work on on globally deployed automotive navigation and mapping products Collaboration with an experienced, international engineering organization Truly international team of fantastic & talented people from 60+ countries worldwide, working from strong tech hubs located in Europe, the US, and Asia, along with multiple smaller locations Flexible working hours & a flexible approach to office vs. remote work Medical coverage for you and your family Yearly variable bonus This role is eligible for the Creative Tax Incentive scheme in Poland (KUP) Option to work on a B2B contract (please note: benefits, bonus and KUP do not apply in this case) Life at HERE in Poland comes with a competitive total rewards package designed to support your health, wellbeing, and performance. This includes a base salary, a Short-Term Incentive (STI) bonus (percentage based on role), a creative tax advantage for eligible positions, private medical care (including dental), life insurance, a meal allowance, vision reimbursement, a remote work allowance (if applicable), access to MyBenefit and Multisport programs, and various wellbeing initiatives. Paid time off, sick leave, and parental leave are provided in accordance with the Polish Labor Code. Who are we? HERE Technologies is a location data and technology platform company. We empower our customers to achieve better outcomes – from helping a city manage its infrastructure or a business optimize its assets to guiding drivers to their destination safely. At HERE we take it upon ourselves to be the change we wish to see. We create solutions that fuel innovation, provide opportunity and foster inclusion to improve people’s lives. If you are inspired by an open world and driven to create positive change, join us. Learn more about us on our YouTube Channel . Change is HERE. Apply Now.

🏢 Summary: Experienced C++ Engineer role focused on developing and enhancing a cross-platform SDK for native location-based applications (Android, iOS, Linux). The position involves building high-performance mapping, routing, and navigation features used in global automotive and mobile products. You will contribute to a growing engineering team delivering high-quality, scalable C++ solutions. 🗂️ Requirements: Degree in Computer Science, Software Engineering or related field, Strong proficiency in C++14/17/20, Strong algorithm engineering skills, Experience with embedded development, Cross-platform development experience (Android, iOS, Linux), Strong knowledge of STL, Strong object-oriented programming skills, Understanding of threading and IPC, Experience working in Agile teams, Very good English communication skills, Experience with AI-assisted development tools 📃 Skills: C++14, C++17, C++20, STL, OOP, Android, iOS, Linux, Embedded, Threading, IPC, Boost, UnitTesting, IntegrationTesting, ParallelProgramming, Async, Protobuf, Databases, Git, Agile 🏢 Description: What's the role? The HERE SDK team provides a set of programming interfaces that enables developers to build immersive native applications while leveraging our powerful maps and services. With features such as routing, guidance, search, interactive 2D and 3D vector maps, the HERE SDK enables developers to build powerful native location‑based applications for platforms like Android, iOS and Linux. Our product is used by millions of customers in mobile phones and moving vehicles. To deliver the best product in the market, we are growing our engineering team and are searching for an excellent C++ Engineer! As a C++ Engineer, you will be a key member of our growing SDK engineering team. This is an experienced position that requires expertise in the C++14, C++17 and C++20 standard. You are motivated to explore and deliver the best possible solutions to our customers with very high quality. You should have a strong passion for technology and a strong customer-centric product sense. You should enjoy working outside the comfort zone and love learning new technologies. Who are you? Ideally, we would like you to have: Bachelor/Master/PhD in Computer Science, Software Engineering or similar technical degree Strong level in algorithm engineering Strong knowledge of C++14/17/20 improvements Experience with embedded development Cross-platform and platform specific development (Android, iOS, Linux flavors) Effective practice of the Standard Template Library Strong practice of object-oriented programming Good understanding of threading and IPC Excellent collaborative and communication skills Experience working in an Agile team Very good command of written and spoken English Experience using AI‑assisted development tools responsibly, with the ability to critically assess and take full ownership of AI‑generated suggestions in complex codebases The following would add extra value to your contribution in our team: Experience leading technical teams Strong knowledge of Boost C++ libraries Experience with unit- and integration-testing Knowledge of location-based services such as mapping, navigation, GPS Emphasis on parallel / async programming Experience with protobuf/protopack Knowledge of Data Bases Experience in using git as a version control system Our culture is founded on openness, collaboration and honesty, with colleagues who are brilliant in their field, resilient, and above all, strive for the best. What we offer: Work on on globally deployed automotive navigation and mapping products Collaboration with an experienced, international engineering organization Truly international team of fantastic & talented people from 60+ countries worldwide, working from strong tech hubs located in Europe, the US, and Asia, along with multiple smaller locations Flexible working hours & a flexible approach to office vs. remote work Medical coverage for you and your family Yearly variable bonus This role is eligible for the Creative Tax Incentive scheme in Poland (KUP) Option to work on a B2B contract (please note: benefits, bonus and KUP do not apply in this case) Life at HERE in Poland comes with a competitive total rewards package designed to support your health, wellbeing, and performance. This includes a base salary, a Short-Term Incentive (STI) bonus (percentage based on role), a creative tax advantage for eligible positions, private medical care (including dental), life insurance, a meal allowance, vision reimbursement, a remote work allowance (if applicable), access to MyBenefit and Multisport programs, and various wellbeing initiatives. Paid time off, sick leave, and parental leave are provided in accordance with the Polish Labor Code. Who are we? HERE Technologies is a location data and technology platform company. We empower our customers to achieve better outcomes – from helping a city manage its infrastructure or a business optimize its assets to guiding drivers to their destination safely. At HERE we take it upon ourselves to be the change we wish to see. We create solutions that fuel innovation, provide opportunity and foster inclusion to improve people’s lives. If you are inspired by an open world and driven to create positive change, join us. Learn more about us on our YouTube Channel . Change is HERE. Apply Now.

🏢 Summary: Senior Frontend Software Engineer role focused on building and maintaining complex web applications that power competitive tournament systems and public-facing experiences. The position involves end-to-end ownership of frontend features, including graph-based workflows, account management, and tournament operations. You will collaborate cross-functionally to deliver high-quality, scalable, and performant UI solutions integrated with backend services. 🗂️ Requirements: 5+ years frontend development experience, 4+ years experience with React, 4+ years experience with TypeScript, Bachelor's degree in Computer Science or related field, Senior-level experience building production frontend applications, Hands-on experience with GraphQL, Hands-on experience with Next.js including SSR and CSR, Experience integrating frontend with backend services, Understanding of modern frontend architecture, Knowledge of state management patterns, Experience with component-based design, Understanding of accessibility standards (WCAG), Ability to work in distributed teams across time zones 📃 Skills: React, TypeScript, JavaScript, GraphQL, Next.js, SSR, CSR, REST, Spring, HTML, CSS, WCAG 🏢 Description: About the role: Our client is one of the largest game studios known for its very successful online MOBA and FPS franchises. You will be part of a team that builds the systems and tools that power competitive play - from internal operator tooling used to create and manage tournaments, to player-facing web experiences that support competition at scale. We’re looking for a Senior Frontend Software Engineer to help us design and build complex frontend applications that support tournament creation, account management, and competition workflows. This role will work across internal operator tools as well as contribute to our public-facing experiences. This is a hands-on senior role where you’ll be expected to take ownership of features end-to-end, collaborate closely with product and backend partners, and deliver high-quality, maintainable frontend code. You will work closely with the engineering team in Los Angeles and other locations in the US West Coast. Due to working across multiple time zones, flexibility to attend later meetings on a daily basis is an important factor for success in this role (up to 9-10PM CEST). Each team member is expected to proactively propose tools, designs, and implementation strategies. Responsibilities: Design, build, and maintain frontend applications that support tournament setup, configuration, and operations. Work on complex UI workflows for creating and managing graph-based tournament structures. Contribute to public-facing web experiences with a focus on performance, usability, and polish. Collaborate closely with backend engineers, product managers, and designers to translate requirements into robust UI solutions. Integrate frontend applications with backend services, including GraphQL APIs and Java Spring REST APIs. Participate fully in team rituals, including 2-week sprints, planning, refinement, and retrospectives. Take clear ownership of your work - asking questions early, surfacing risks, and caring deeply about the quality of the end results Required qualifications: 5+ years of experience with Frontend Technologies 4+ years of experience with React and Typescript Bachelor's or higher degree in Computer Science , Software Engineering, or a related field Senior-level experience building production frontend applications. Hands-on experience with GraphQL and Next.js , including both SSR and CSR patterns. Experience integrating frontend applications with backend services (experience consuming Java Spring REST APIs is a plus). Solid understanding of modern frontend architecture, state management, and component design. Comfortable working independently in a remote environment while staying engaged and communicative. Understanding of accessibility standards and guidelines (e.g. WCAG) Nice to have: Working with PaaS Vendors like Netlify Hands-on experience working with Public Cloud, preferably AWS (Lambda/Serverless). Familiarity with complex data visualization or workflow-heavy UIs. Experience working on consumer-facing web products at scale. Familiarity with trading card games (TCGs) and tournament formats (e.g., Swiss rounds, decklists, brackets), or a strong interest in competitive gaming, esports. Familiarity with testing frameworks (e.g. JEST, RTL. Playwright) Experience with observability and monitoring tools, preferably Datadog

🏢 Summary: Senior Fullstack Engineer role focused on building internal developer platforms, tools, and services that improve developer productivity, workflow automation, and system visibility in an enterprise environment. The position involves backend and frontend development, architectural decision-making, cloud infrastructure collaboration, and continuous improvement initiatives. The offer includes professional development opportunities, language courses, and a flexible benefits platform. 🗂️ Requirements: Completed degree in Computer Science, Data Science, Mathematics, or related technical field, 5+ years of fullstack software development experience, Strong knowledge of TypeScript, Strong knowledge of Node.js, Experience with NestJS, Experience building frontend applications with Vue or Nuxt, Understanding of event-driven architectures, Knowledge of Kafka, Experience with AWS cloud services, Experience with CI/CD pipelines, Knowledge of Terraform or AWS CDK, Ability to participate in system architecture and technical design discussions, English proficiency, Polish proficiency, Availability to work in a hybrid model in Katowice 📃 Skills: TypeScript, Node.js, NestJS, Vue, Nuxt, Kafka, AWS, ECS, EKS, EC2, IAM, Lambda, GitLab, Terraform, CDK, CI/CD 🏢 Description: Responsibilities We are looking for a practical and collaborative Senior Fullstack Engineer to join the Developer Experience (DX) team in a large enterprise environment. The role focuses on building internal developer platforms , tools, and services that improve developer productivity, system visibility, and workflow automation. You will play a key role in shaping engineering solutions, making technical decisions, and driving improvements across the developer ecosystem. Design and maintain backend services and APIs using TypeScript , Node.js , and NestJS , while making architectural decisions and evaluating trade-offs. Build and support frontend applications using Vue and Nuxt , ensuring good developer-facing UX. Develop internal tools and platforms that improve developer productivity , system visibility , and workflow automation. Evaluate technical solutions, balancing cost, performance, complexity, and maintainability . Collaborate with DevOps engineers on cloud infrastructure , CI/CD , and observability integration. Troubleshoot issues, perform root cause analysis , and drive continuous improvements. Build POCs to validate new technologies and drive experimentation. Benefits Motivizer Benefits Platform to choose and manage all your benefits in one place. You receive a budget (550 PLN monthly). You can choose medical care package, meal tickets, sports cards (we have Multisport and on preferential terms, we have membership cards to one of the most popular Gyms), cinema tickets, shop vouchers, discounts and many more. Language Courses – you'll have access to a multi-language learning platform enabling you to practice you language skills and learn new ones! Regular and systematic further training opportunities - both internally and from external providers. We support your ongoing learning and development. Cooperation within an internal community is our everyday reality. We have networking events, coding challenges, and company parties for different occasions. Qualifications Completed university degree in Computer Science , Data Science, Mathematics, or a related technical field. Strong background in fullstack software development (5+ years) with hands-on delivery of production systems. Solid command of TypeScript , Node.js , and backend frameworks such as NestJS . Practical knowledge of building frontend applications using Vue or Nuxt . Good understanding of event-driven architectures and messaging systems such as Kafka . Familiarity with cloud environments (AWS: ECS, EKS, EC2, IAM, Lambda) and how services are deployed and operated. Working knowledge of CI/CD pipelines (GitLab CI) and Infrastructure as Code (Terraform / AWS CDK) . Ability to work with technical design discussions, system architecture topics, and cross-team engineering challenges. Strong communication skills in English and Polish , with readiness to work in a hybrid model in Katowice . About OBI Smart Technologies WHO ARE WE: We are a joint venture between OBI and Reply Group, responsible for co-designing, building and operating mission-critical digital platforms for commerce, customer service, and omnichannel retail. OUR MISSION: " We unite technology leadership with deep retail vision to implement standardized processes and scalable digital products that drive efficient support for one of Europe’s largest DIY retailers. Leveraging proven best practices, we advance the internationalization of products and the digital mindset of our partners, delivering consistent and business-critical solutions to support the targets of our customer. "

🏢 Summary: Senior Mobile Developer role focused on building and maintaining an enterprise-grade mobile SDK for passwordless authentication used globally. The position involves low-level mobile engineering, security and cryptography implementation, and performance optimization across Android and iOS platforms. The role includes architectural decision-making and close collaboration with backend teams in an international environment. 🗂️ Requirements: 6+ years commercial experience in mobile development (Android and/or iOS), Strong knowledge of Kotlin and/or Swift, Practical experience in developing mobile SDKs, Cross-platform experience with Android and iOS, Knowledge of OS internals (memory, threading, security model), Experience with cryptography or threat modeling, Experience in performance optimization, Knowledge of concurrency and asynchronous programming, Experience with CI/CD for mobile applications, English proficiency min. B2, Polish proficiency min. C1 📃 Skills: Kotlin, Swift, Android, iOS, SDK, Cryptography, Concurrency, CI/CD, Threading, Memory, Security, Git 🏢 Description: Cześć! Dla naszego klienta, międzynarodowej firmy z branży usług informatycznych, poszukujemy Senior Mobile Developera, który dołączy do zespołu budującego nowoczesną platformę passwordless authentication, wykorzystywaną na milionach urządzeń na całym świecie. To rozwiązanie klasy enterprise, używane m.in. w sektorze finansowym i bankowym, które odpowiada za bezpieczne zarządzanie tożsamością użytkowników. Projekt koncentruje się na rozwoju zaawansowanego mobile SDK, które stanowi warstwę bezpieczeństwa działającą bezpośrednio na urządzeniu użytkownika. Będziesz mieć okazję pracować blisko systemu operacyjnego, w obszarze security, wydajności i low-level engineeringu, tworząc produkt używany przez innych developerów. Wspólnie z zespołem będziesz podejmować kluczowe decyzje architektoniczne mające wpływ na dalszy rozwój produktu. Lokalizacja: Gdańsk Model pracy: Hybryda lub zdalnie (sporadyczne wizyty w biurze) Forma zatrudnienia: B2B lub umowa o pracę Wynagrodzenie: B2B: 169 - 190 PLN/h + VAT || UoP: 20750 - 23000 PLN brutto Zakres obowiązków: rozwój i utrzymanie mobilnego SDK (Android/iOS), projektowanie i implementacja rozwiązań z zakresu bezpieczeństwa i kryptografii, praca z pamięcią, wielowątkowością i optymalizacją wydajności, integracja z mechanizmami systemowymi (lifecycle, permissions, system services), analiza zmian w systemach operacyjnych i dostosowywanie SDK do nowych wersji platform, udział w projektowaniu rozwiązań, security reviews oraz podejmowaniu decyzji architektonicznych, ścisła współpraca z zespołami backendowymi, praca w środowisku międzynarodowym (język angielski na co dzień). Oczekiwania: 6+ lat doświadczenia komercyjnego w tworzeniu rozwiązań mobilnych (Android i/lub iOS), bardzo dobra znajomość Kotlin i/lub Swift, praktyczne doświadczenie w tworzeniu mobile SDK, elastyczność i gotowość do działania cross-platformowo (zarówno w środowisku Androidowym, jak i iOS), solidna wiedza z zakresu: OS internals (memory, threading, security model) oraz lifecycle i zarządzania zasobami, doświadczenie z kryptografią lub threat modelingiem, doświadczenie w optymalizacji wydajności, praktyczna wiedza z zakresu concurrency i programowania asynchronicznego, znajomość procesów CI/CD dla aplikacji mobilnych, bardzo dobra znajomość języka angielskiego (min. B2), płynna znajomość języka polskiego (min. C1), umiejętność samodzielnej pracy i branie odpowiedzialności za tworzony produkt, nastawienie na bycie częścią zespołu i otwartość na feedback. Mile widziane: doświadczenie cross-platform (np. Kotlin Multiplatform, React Native, Flutter), znajomość narzędzi do profilowania (np. Instruments, Perfetto, Systrace), doświadczenie z komponentami sprzętowymi (TEE, Secure Enclave, KeyStore), wiedza z zakresu mobile security (RASP, root/jailbreak detection, anti-tampering, itp.), podstawowa znajomość UX / procesów projektowania produktów cyfrowych. Oferujemy: realny wpływ na rozwój produktu używanego globalnie przez miliony użytkowników, dużą samodzielność oraz szerokie możliwości rozwoju, pracę w płaskiej strukturze i możliwość proponowania własnych rozwiązań, środowisko nastawione na jakość i konstruktywny feedback, wsparcie przełożonego, program mentoringowy i regularne spotkania 1on1, współpracę w oparciu o kontrakt B2B lub umowę o pracę, elastyczne godziny pracy (start między 7:00 a 10:00), nowoczesny sprzęt (MacBook + urządzenia testowe), integracje zespołowe i warsztaty techniczne, pakiet benefitów (prywatna opieka medyczna, MultiSport, lekcje angielskiego), pracę zdalną ze sporadycznymi wizytami w gdańskim biurze.

🏢 Summary: Senior Fullstack Engineer role focused on building internal developer platforms, tools, and services to improve developer productivity, workflow automation, and system visibility in an enterprise environment. The position involves backend and frontend development, architectural decision-making, cloud infrastructure collaboration, and CI/CD integration using modern technologies. The role also includes troubleshooting, experimentation through POCs, and cross-team technical collaboration in a hybrid work model in Katowice. 🗂️ Requirements: Completed degree in Computer Science, Data Science, Mathematics, or related technical field, 5+ years of fullstack software development experience, Strong experience with TypeScript, Strong experience with Node.js, Experience with NestJS, Experience building frontend applications with Vue or Nuxt, Knowledge of event-driven architectures, Experience with Kafka, Familiarity with AWS cloud services, Experience with CI/CD pipelines, Knowledge of Infrastructure as Code, Ability to participate in system architecture and technical design discussions, English proficiency, Polish proficiency, Availability for hybrid work in Katowice 📃 Skills: TypeScript, Node.js, NestJS, Vue, Nuxt, Kafka, AWS, ECS, EKS, EC2, IAM, Lambda, GitLab, Terraform, CDK, CI/CD 🏢 Description: Responsibilities We are looking for a practical and collaborative Senior Fullstack Engineer to join the Developer Experience (DX) team in a large enterprise environment. The role focuses on building internal developer platforms , tools, and services that improve developer productivity, system visibility, and workflow automation. You will play a key role in shaping engineering solutions, making technical decisions, and driving improvements across the developer ecosystem. Design and maintain backend services and APIs using TypeScript , Node.js , and NestJS , while making architectural decisions and evaluating trade-offs. Build and support frontend applications using Vue and Nuxt , ensuring good developer-facing UX. Develop internal tools and platforms that improve developer productivity , system visibility , and workflow automation. Evaluate technical solutions, balancing cost, performance, complexity, and maintainability . Collaborate with DevOps engineers on cloud infrastructure , CI/CD , and observability integration. Troubleshoot issues, perform root cause analysis , and drive continuous improvements. Build POCs to validate new technologies and drive experimentation. Qualifications Completed university degree in Computer Science , Data Science, Mathematics, or a related technical field. Strong background in fullstack software development (5+ years) with hands-on delivery of production systems. Solid command of TypeScript , Node.js , and backend frameworks such as NestJS . Practical knowledge of building frontend applications using Vue or Nuxt . Good understanding of event-driven architectures and messaging systems such as Kafka . Familiarity with cloud environments (AWS: ECS, EKS, EC2, IAM, Lambda) and how services are deployed and operated. Working knowledge of CI/CD pipelines (GitLab CI) and Infrastructure as Code (Terraform / AWS CDK) . Ability to work with technical design discussions, system architecture topics, and cross-team engineering challenges. Strong communication skills in English and Polish , with readiness to work in a hybrid model in Katowice . About OBI Smart Technologies WHO ARE WE: We are a joint venture between OBI and Reply Group, responsible for co-designing, building and operating mission-critical digital platforms for commerce, customer service, and omnichannel retail. OUR MISSION: " We unite technology leadership with deep retail vision to implement standardized processes and scalable digital products that drive efficient support for one of Europe’s largest DIY retailers. Leveraging proven best practices, we advance the internationalization of products and the digital mindset of our partners, delivering consistent and business-critical solutions to support the targets of our customer. "

🏢 Summary: Senior C++ Engineer role focused on transforming ML and data science prototypes into high-performance, production-grade C++ applications for real-time, resource-constrained and cloud environments. The position involves optimizing, containerizing and deploying deterministic, low-latency systems with strong emphasis on reliability, performance and CI/CD practices. The offer includes flexible remote work within Poland, career development programs and comprehensive benefits. 🗂️ Requirements: 5+ years of experience in modern C++ (C++17/C++20), Strong knowledge of multithreading, concurrency and synchronization in Linux, Experience developing deterministic, low-latency real-time systems, Proficiency with CMake and Conan package management, Experience profiling and optimizing CPU and memory usage in Linux, Ability to write unit and automated tests, Experience debugging low-level communication issues, Hands-on experience with Docker in Linux production environments, Experience with CI/CD and release pipelines, Familiarity with Agile tools (Azure DevOps, JIRA, Confluence, Bitbucket), Fluent English (B2+ level) 📃 Skills: C++, C++17, C++20, Linux, Multithreading, Concurrency, CMake, Conan, Docker, CI/CD, Azure, JIRA, Confluence, Bitbucket, Python, MQTT, ZeroMQ, ProtoBuf, Kafka, HTTP, Bash, Kubernetes, TCP/IP, systemd 🏢 Description: We are seeking a Senior C++ Engineer to collaborate with Data Scientists and Machine Learning experts in transforming prototype algorithms into hardened, reliable, production-grade applications. In this role, you will convert research workflows into high-performance C++ systems capable of running on resource-constrained hardware or scalable cloud environments. Responsibilities Collaborate closely with Data Scientists and Machine Learning experts to turn prototype algorithms and data processing pipelines into hardened, reliable, production-grade "always-on" applications written in C++ Conversion of research and prototype ML/data-processing workflows (primarily Python-based) into high-performance, reliable C++ production systems Implementation of data quality safeguards, sanitization and required low-level interfaces for real-time inference on streaming data Optimization of code for predictable behavior, high reliability and efficient resource utilization (compute/memory/storage) on resource-constrained environments Support the development of high-performance, high-reliability solutions capable of running on resource-constrained hardware or in cost-effective, highly-scalable cloud applications Translation of real-world process dynamics, sensor behavior and system constraints into realistic online control solutions Documentation and communication of assumptions, results, limitations, risks and deployment considerations for discussion with the broader technical audience Requirements 5+ years of experience in modern C++ software development using C++17/C++20 Understanding of multithreading, concurrency, synchronization and performance optimization in Linux environments Background in developing deterministic, low-latency software for real-time systems Proficiency in CMake, modern C++ build systems and Conan package management for C++ Skills in profiling and optimizing CPU/memory utilization in constrained Linux environments Competency in writing unit tests and automated tests Proven capability to debug low-level communication issues and optimize performance under constrained environments Hands-on expertise designing, deploying and debugging containerized applications using Docker in Linux production environments Experience with CI/CD & Release pipelines: multi OS runners, artifact signing, SBOMs/vulnerability scanning Familiarity with Agile toolsets such as Azure DevOps, Atlassian tools like Confluence, JIRA and Bitbucket Fluent English communication skills at a B2+ level Nice to have Capability to independently deploy and manage cloud-native or edge-native microservices in Linux environments Flexibility to work closely with research, data science and platform engineering teams to bridge prototype and production environments Skills in Python and C++ interoperability Familiarity with industry IoT standards and protocols such as MQTT/SparkplugB, ZeroMQ, ProtoBuf, Kafka and HTTP Expertise in Linux, Bash/Shell scripting, Docker, TCP/IP networking, Kubernetes, systemd, logging, OTA/rollback strategies and advanced debugging techniques Background in deploying software in industrial environments, including remote diagnostics and field support Familiarity with .NET/C# We offer We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.