Senior Software Developer (GoLang) | Remote in Poland

🏢 Summary: Senior Software Developer role focused on building secure, high-availability payment infrastructure for banking and fintech products. The position involves backend engineering, architectural decision-making, API and transaction system development, and collaboration with banking partners in regulated environments. 🗂️ Requirements: 5+ years of professional software engineering experience, Experience in senior or lead engineering role, Proficiency in at least two: Go, Java, C/C++, Node.js, Experience building service-oriented backend systems, Experience with REST APIs, Experience with asynchronous processing flows, Experience with transaction handling systems, Experience with observability and monitoring, Experience with Oracle and/or PostgreSQL, Knowledge of schema design and query optimization, Experience with Linux environments, Experience with Docker and docker-compose, Knowledge of GitLab and CI/CD pipelines, Experience with PCI DSS or financial compliance standards, Ability to write technical documentation and design specifications, Professional English communication skills, Russian proficiency at minimum B2 level 📃 Skills: Go, Java, Spring, C, C++, Node.js, REST, Oracle, PostgreSQL, Linux, RHEL, Docker, GitLab, CI/CD, PCI, API 🏢 Description: About D8 Corporation D8 Corporation develops the Gate2Bank (G2B) family of payment products used by issuing and acquiring banks across Europe, the CIS, and the Middle East. Solutions include EMV 3-D Secure platforms, card tokenization services for Apple Pay, Google Pay, Samsung Pay, and Click to Pay, as well as a complete e-commerce acquiring stack including a Payment Gateway, 3DS Server, and Access Control Server. Our engineering team is headquartered in Riga, Latvia, where we build high-load, security-critical financial systems used by banks and payment providers internationally. Position Overview We are looking for a Senior Software Developer with strong backend engineering expertise and experience building secure, high-availability systems in regulated environments. You will work on mission-critical payment infrastructure, contribute to architectural decisions, collaborate directly with banking partners, and help shape the next generation of payment products. Requirements - 5+ years of professional software engineering experience, including significant experience in a senior or lead engineering role. - Strong proficiency in at least two of the following technologies: Go, Java (Spring), C/C++, Node.js. - Solid experience designing, developing, and operating service-oriented backend systems in production environments, including: - REST APIs - asynchronous processing flows - transaction handling - observability and monitoring - Hands-on experience with relational databases (Oracle and/or PostgreSQL), including: - schema design - query optimization - performance tuning - migration strategies - Comfortable working in Linux environments (RHEL family) and with containerized deployments using Docker and docker-compose. - Working knowledge of GitLab (or equivalent platforms) and CI/CD pipelines. - Experience developing systems with strict security and compliance requirements such as PCI DSS, financial regulations, audit requirements, or similar standards. - Strong architectural and analytical thinking with the ability to: - evaluate technical trade-offs - write clear technical documentation and design specifications - lead technical discussions with internal teams and customer-side stakeholders - Professional English communication skills (written and spoken) for technical documentation, API specifications, and customer-facing communication. - Upper-intermediate (minimum B2 level) proficiency in Russian (written and spoken). What We Offer - Competitive compensation package based on experience and expertise - Health insurance and standard social benefits - Paid vacation and additional paid leave benefits - Training and professional development budget - Opportunity to work on international fintech and banking products used across multiple regions - Modern engineering environment with a strong focus on quality, security, and technical excellence - Flexible and collaborative work culture with direct impact on architecture and product decisions - Long-term career growth opportunities within a stable and expanding international company

🏢 Summary: Senior Software Engineer role focused on developing a global passwordless authentication platform in the identity & security domain. The position involves backend and microservices development, designing scalable systems, and contributing to architecture decisions in an international environment. The offer includes hybrid work, flexible employment options, and influence on globally used security products. 🗂️ Requirements: Minimum 5 years of commercial experience as Fullstack or Backend Developer, Practical experience with Node.js, Very good knowledge of JavaScript, Very good knowledge of TypeScript, Very good knowledge of React, Experience with microservices architecture, Experience with AI tools in daily development work, Experience with SQL and/or NoSQL databases, Knowledge of HTTP and REST API, Knowledge of application testing, English proficiency minimum B2+, Polish proficiency minimum C1 📃 Skills: Node.js, NestJS, JavaScript, TypeScript, React, SQL, NoSQL, HTTP, REST, Claude, Cursor, Juni, OpenID, OAuth, SAML, AWS, GCP, CI/CD 🏢 Description: Pracuj nad rozwiązaniami, które zabezpieczają cyfrową tożsamość milionów użytkowników na całym świecie. Dla międzynarodowej firmy z branży usług informatycznych poszukiwany jest Senior Software Engineer do organizacji budującej nowoczesną platformę passwordless authentication, wykorzystywaną na szeroką skalę. Dołączysz do jednego z kilku zespołów odpowiedzialnych za rozwój kluczowych obszarów identity & security, takich jak uwierzytelnianie użytkowników, wykrywanie nadużyć, weryfikacja tożsamości czy orkiestracja procesów bezpieczeństwa. Nie jest to rola utrzymaniowa – zespoły aktywnie rozwijają produkty, tworzą nowe funkcjonalności i pracują nad rozwiązaniami wykorzystywanymi w skali globalnej. Będziesz mieć realny wpływ na decyzje techniczne i architekturę rozwijanych systemów. Lokalizacja: Gdańsk Model pracy: Hybryda (częstotliwość pracy w biurze do ustalenia) Forma zatrudnienia: B2B lub umowa o pracę Wynagrodzenie: - B2B: 170 - 190 PLN/h + VAT - UoP: 20.500 - 23.200 PLN brutto Zakres obowiązków: - rozwój i współtworzenie systemów w architekturze mikroserwisowej, - rozwój backendu - szukamy aktualnie osób specjalizujących się głównie w tym obszarze, - projektowanie i implementacja nowych funkcjonalności w obszarze identity & security, - udział w projektowaniu architektury systemu oraz podejmowaniu decyzji technicznych, - praca nad skalowalnością, wydajnością oraz niezawodnością systemu, - integracja pomiędzy różnymi komponentami platformy (m.in. authentication, risk, identity flows), - świadome wykorzystywanie narzędzi AI w codziennej pracy, - udział w code review, dbanie o jakość kodu oraz standardy wytwarzania oprogramowania, - praca w środowisku międzynarodowym (język angielski na co dzień). Oczekiwania: - min. 5 lat doświadczenia komercyjnego jako Fullstack / Backend Developer, - praktyczne doświadczenie z Node.js (mile widziany NestJS), - bardzo dobra znajomość JavaScript, TypeScript, React, - doświadczenie w pracy z architekturą mikroserwisową, - praktyczne doświadczenie w pracy z narzędziami AI (np. Claude, Cursor, Juni lub podobne), - umiejętność świadomego wykorzystywania AI w codziennej pracy, - doświadczenie z bazami danych (SQL i/lub NoSQL), - znajomość HTTP, REST API oraz nowoczesnych wzorców komunikacji, - wiedza z obszaru testowania aplikacji (frontend i/lub backend), - rozumienie działania implementowanych rozwiązań oraz ich konsekwencji architektonicznych, - 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 w obszarze security / identity, - znajomość OpenID, OAuth, SAML lub podobnych standardów, - znajomość chmury (AWS / GCP) oraz narzędzi CI/CD. 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 hybrydową z przewagą pracy zdalnej.

🏢 Summary: Senior Software Engineer role focused on developing a global passwordless authentication platform within identity and security domain. The position involves building and evolving microservices-based systems, contributing to architecture decisions, and implementing scalable, high-performance backend and/or frontend solutions. This is a product development role with real impact on globally used security solutions. 🗂️ Requirements: Minimum 5 years commercial experience as Fullstack, Backend or Frontend Developer, Strong knowledge of JavaScript and TypeScript, Commercial experience with React and/or Node.js, Experience working with microservices architecture, Practical experience with AI development tools, Experience with SQL and/or NoSQL databases, Knowledge of HTTP and REST API, Experience in frontend and/or backend testing, Very good English (min. B2+), Fluent Polish (min. C1) 📃 Skills: JavaScript, TypeScript, React, Node.js, NestJS, SQL, NoSQL, HTTP, REST, Microservices, AI, Testing 🏢 Description: Pracuj nad rozwiązaniami, które zabezpieczają cyfrową tożsamość milionów użytkowników na całym świecie! Dla naszego klienta, międzynarodowej firmy z branży usług informatycznych, poszukujemy Senior Software Engineera , który dołączy do organizacji budującej nowoczesną platformę passwordless authentication, wykorzystywaną na szeroką skalę. Dołączysz do jednego z kilku zespołów odpowiedzialnych za rozwój kluczowych obszarów identity & security, takich jak uwierzytelnianie użytkowników, wykrywanie nadużyć, weryfikacja tożsamości czy orkiestracja procesów bezpieczeństwa. Nie jest to rola utrzymaniowa – zespoły aktywnie rozwijają produkty, tworzą nowe funkcjonalności i pracują nad rozwiązaniami wykorzystywanymi w skali globalnej. Będziesz mieć realny wpływ na decyzje techniczne i architekturę rozwijanych systemów. Lokalizacja: Gdańsk Model pracy: Hybryda (częstotliwość pracy w biurze do ustalenia) Forma zatrudnienia: B2B lub umowa o pracę Wynagrodzenie: B2B: 170 - 190 PLN/h + VAT || UoP: 20.500 - 23.200 PLN brutto Zakres obowiązków: rozwój i współtworzenie systemów w architekturze mikroserwisowej, rozwój backendu - szukamy aktualnie osób specjalizujących się głównie w tym obszarze, projektowanie i implementacja nowych funkcjonalności w obszarze identity & security, udział w projektowaniu architektury systemu oraz podejmowaniu decyzji technicznych, praca nad skalowalnością, wydajnością oraz niezawodnością systemu, integracja pomiędzy różnymi komponentami platformy ( m.in . authentication, risk, identity flows), świadome wykorzystywanie narzędzi AI w codziennej pracy, udział w code review, dbanie o jakość kodu oraz standardy wytwarzania oprogramowania, praca w środowisku międzynarodowym (język angielski na co dzień). Oczekiwania: min. 5 lat doświadczenia komercyjnego jako Fullstack / Backend Developer, praktyczne doświadczenie z Node.js (mile widziany NestJS), bardzo dobra znajomość JavaScript, TypeScript, React, doświadczenie w pracy z architekturą mikroserwisową, praktyczne doświadczenie w pracy z narzędziami AI (np. Claude, Cursor, Juni lub podobne), umiejętność świadomego wykorzystywania AI w codziennej pracy, doświadczenie z bazami danych (SQL i/lub NoSQL), znajomość HTTP, REST API oraz nowoczesnych wzorców komunikacji, wiedza z obszaru testowania aplikacji (frontend i/lub backend), rozumienie działania implementowanych rozwiązań oraz ich konsekwencji architektonicznych, 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 w obszarze security / identity, znajomość OpenID, OAuth, SAML lub podobnych standardów, znajomość chmury (AWS / GCP) oraz narzędzi CI/CD. 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 hybrydową z przewagą pracy zdalnej.

🏢 Summary: Oferta dotyczy roli Senior Backend Engineer odpowiedzialnej za rozwój wysokowydajnej platformy inwestycyjnej i tradingowej obsługującej miliony użytkowników. Stanowisko obejmuje projektowanie architektury mikroserwisowej, rozwój backendu w Java i Go oraz optymalizację systemów działających pod dużym obciążeniem. Kandydat będzie współpracować z zespołami Product, DevOps i Engineering oraz uczestniczyć w decyzjach architektonicznych i mentoringu. 🗂️ Requirements: 8-12 lat doświadczenia w programowaniu backendowym, Bardzo dobra znajomość Java, Bardzo dobra znajomość Golang, Doświadczenie z JVM, Doświadczenie w projektowaniu systemów high scale i high throughput, Bardzo dobra znajomość architektury mikroserwisowej, Doświadczenie z REST API, Doświadczenie z integracjami systemowymi, Znajomość MongoDB, Znajomość PostgreSQL, Znajomość MySQL, Znajomość indeksowania, cachingu i optymalizacji wydajności, Znajomość Linux, Znajomość podstaw sieci i komunikacji między komponentami, Umiejętność analizy logów i troubleshootingu, Doświadczenie w branży finansowej lub fintech, Znajomość języka angielskiego na poziomie B2 📃 Skills: Java, Golang, JVM, REST, MongoDB, PostgreSQL, MySQL, Linux, Microservices, API, Caching, Networking, AWS, GCP, Azure, Oracle, CI/CD, DevOps 🏢 Description: Dołącz do jednej z najszybciej rozwijających się firm technologicznych z sektora finansowego, która tworzy nowoczesną platformę inwestycyjną i tradingową wykorzystywaną przez użytkowników na całym świecie. To organizacja stawiająca na wysoką jakość inżynierii, skalowalność oraz nowoczesną architekturę. Produkty obsługują miliony użytkowników, bardzo duży ruch i wymagają rozwiązań zapewniających wysoką dostępność oraz wydajność. Twoja rola Jako Senior Backend Engineer będziesz odpowiadać za projektowanie i rozwój kluczowych komponentów platformy oraz współtworzenie architektury systemów działających pod dużym obciążeniem. Do Twoich obowiązków będzie należeć: projektowanie, rozwój i utrzymanie backendu w Java i Go, tworzenie oraz rozwój architektury mikroserwisowej, projektowanie i rozwój wydajnych API oraz integracji z systemami wewnętrznymi i zewnętrznymi, optymalizacja wydajności aplikacji oraz rozwiązywanie problemów produkcyjnych, analiza logów, diagnostyka i troubleshooting złożonych problemów, współpraca z zespołami Product, DevOps oraz Engineering przy dostarczaniu nowych funkcjonalności, udział w code review oraz dbanie o wysoką jakość kodu, mentoring mniej doświadczonych programistów, udział w podejmowaniu decyzji architektonicznych i rozwoju platformy. Szukamy osoby, która posiada 8-12 lat doświadczenia w programowaniu backendowym, bardzo dobrą znajomość Java i Golang, praktyczne doświadczenie z JVM, doświadczenie w projektowaniu i rozwijaniu systemów o wysokiej dostępności oraz dużym ruchu (high scale, high throughput), bardzo dobrą znajomość architektury mikroserwisowej, doświadczenie z REST API oraz integracjami systemowymi, praktyczną znajomość baz danych (MongoDB, PostgreSQL, MySQL), w tym indeksowania, cachingu i optymalizacji wydajności, dobrą znajomość systemu Linux oraz podstaw działania sieci i komunikacji między komponentami aplikacji, umiejętność diagnozowania problemów, analizy logów oraz proponowania usprawnień technicznych, doświadczenie w branży finansowej lub fintech, znajomość języka angielskiego na poziomie min. B2. Mile widziane doświadczenie z rozwiązaniami DevOps oraz CI/CD, znajomość chmur publicznych (AWS, GCP lub Azure), doświadczenie z Oracle Cloud, znajomość wzorców architektonicznych, doświadczenie w obszarze tradingu, giełdy, kryptowalut lub High-Frequency Trading (HFT), wykształcenie techniczne, znajomość języka arabskiego.

🏢 Summary: Senior Backend Developer role focused on building and maintaining internal banking architecture tooling using Java and Node.js in a hybrid Krakow-based environment. The position involves developing backend services, APIs, web UI components, and AI-agent orchestration solutions to support enterprise-scale digital transformation. Candidates should have strong software engineering experience, database expertise, and knowledge of modern integration and automation practices. 🗂️ Requirements: 5+ years of software engineering experience, Strong expertise in Node.js, Strong expertise in Java, Experience with relational databases, Proficiency in PostgreSQL, Experience with JavaScript/TypeScript frameworks, Knowledge of agentic application engineering, Experience with MCP integration patterns, API design experience, Experience with tool/function calling, Production engineering mindset, Solution design skills, Fluent English, Legal right to work in the European Union 📃 Skills: Java, Node.js, PostgreSQL, JavaScript, TypeScript, MCP, API, SQL, AI, DevOps 🏢 Description: Empower innovative architecture tools — shape the future of banking technology! Krakow-based opportunity with hybrid work model (up to 3 remote days per week). As a Senior Backend Developer – Java and Node.js Platforms , you will be working for our client, a leading international bank. You’ll contribute to designing, building, and maintaining cutting-edge internal tooling that supports the bank’s Future State Architecture across CTO Platforms. Your work will enable seamless integration of data, workflows, and autonomous AI agents, helping redefine technology governance at scale and driving digital transformation. Your main responsibilities: Design, develop, and maintain reliable internal tooling supporting Future State Architecture (FSA) with a focus on security, resilience, and usability. Build backend services and APIs using Node.js and/or Java, integrating with PostgreSQL and other enterprise data sources. Develop web UI components utilizing modern JavaScript/TypeScript frameworks to deliver intuitive user workflows. Apply agentic engineering practices to orchestrate autonomous AI agents for building, testing, and deploying software. Implement secure, efficient integration patterns (e.g., MCP, API design, tool/function calling) across the architecture ecosystem. Collaborate with architects, platform engineers, and stakeholders to translate architectural needs into effective technical solutions. Ensure solutions adhere to client's engineering standards, including testing, performance, security, and operational readiness. Support continuous improvement initiatives through automation, code reviews, and operational support for live systems. You're ideal for this role if you have: At least 5 years of experience in software engineering, with strong expertise in Node.js and/or Java . Proficiency with relational databases , particularly PostgreSQL (data modeling, query optimization). Web UI development experience with modern JavaScript/TypeScript frameworks . Knowledge of agentic application engineering , including orchestration of autonomous AI agents. Experience with integration patterns such as MCP , API design , and tool/function calling . A production engineering mindset, emphasizing security, resilience, performance, and observability . Solution design skills for internal platforms and tooling. Excellent English communication skills and proven experience in stakeholder collaboration within a global environment. It is a strong plus if you have: Certifications or experience in automation, DevOps, or related fields. Additional familiarity with cloud services or enterprise architecture frameworks. Language Required for the role: Fluent English (spoken and written). Eligibility to work in: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Backend Developer role focused on designing and implementing core components of a high-performance trading platform in a cloud-native, microservices environment. The position involves building low-latency order management and event-driven distributed systems using Java/Kotlin on AWS. You will work within a Scrum team to deliver secure, scalable backend services for financial infrastructure. 🗂️ Requirements: Bachelor’s degree in Computer Science, IT or equivalent experience, 6+ years of experience in Java or Kotlin, Experience with Docker and Kubernetes, Strong knowledge of AWS cloud platform, Experience with CI/CD pipelines and automation, Knowledge of microservices architecture, Experience working with distributed systems, Competence in messaging systems, Experience with distributed caching, Understanding of monitoring and observability tools, English proficiency minimum B2 📃 Skills: Java, Kotlin, Kubernetes, Docker, Jenkins, GitLab, AWS, Microservices, CI/CD, Messaging, Caching, Scrum 🏢 Description: Employer: Swiss IT Company in Banking Infrastructure Rate: 6000 - 7500 Eur net per month Cooperation model: B2B Start date: ASAP Recruitment process:  3 steps (pre - screening, technical interview, technical task) Technology stack: Java or Kotlin, Kubernetes, Docker, Jenkins, Gitlab, AI Tools, AWS Team: 20-person Scrum team responsible for separate microservices We are currently looking for a Senior Backend Developer based in Poland (preferred locations: Wrocław, Poznań or fully remote). In this role, you will contribute to the design and implementation of strategic backend components within a high-performance financial technology platform. You will work on infrastructure responsible for order management, execution logic, smart routing mechanisms, and event-driven business services in a cloud-native environment. This is an opportunity to join a fast-growing, product-driven fintech organisation operating in a technically demanding domain with strong market demand and long-term growth potential. Your role is: -> Designing and implementing new releases of a core trading platform -> Contributing to architecture decisions around: low-latency order management execution algorithm smart order routing event driven and distributed systems -> Engineering and operating distributed services in cloud environments -> Collaborating closely with Product, Engineering Leadership, and cross-functional teams -> Ensuring solutions follow current industry best practices and architectural standards -> Designing with security, authentication and authorization in mind Your skills and experiences: -> Bachelor’s degree in Computer Science, IT or equivalent practical experience -> Experience with container orchestration (Docker and Kubernetes) -> 6+ years of experience in Java and/or Kotlin -> Solid understanding of monitoring, observability and diagnostics tooling -> Strong knowledge of cloud platform AWS -> Experience with CI/CD pipelines and automation -> Knowledge of microservices architecture and the ability to work within a distributed system environment -> Proven competence in messaging systems and distributed caching -> Strong spoken and written English (min B2) Nice to have: + Experience with reactive programming patterns + Strong clean-code mindset and experience with test automation Our client offers: + Great opportunity for personal development in a stable and friendly large multinational company + Frequent company events + Flexible working hours If interested, please apply safely through this portal (application rules are in accordance with GDPR). Employment agency Nr 17138.

🏢 Summary: Senior Java Developer role in the banking industry focused on designing and modernising backend integration solutions for Safekeeping and Corporate Actions platforms. The position involves developing Java microservices, supporting production environments, and collaborating across Scrum teams in large-scale enterprise systems. The offer includes private medical care, sports card co-financing, and an employee referral program. 🗂️ Requirements: 5+ years of Java backend experience, Experience in large-scale enterprise environments, Spring Boot, Spring Integration, SQL, Relational databases, REST services, Microservices, Integration patterns, Maven, Git, CI/CD pipelines, JUnit, Testcontainers, Messaging systems, Event-driven integration, Ability to analyse requirements and production issues, Fluent English 📃 Skills: Java, Spring, SpringBoot, SpringIntegration, SQL, Oracle, IBMMQ, Kafka, REST, Microservices, Maven, Git, CI/CD, JUnit, Testcontainers, JIRA 🏢 Description: As a recruitment company, DCG understands that every business is powered by experienced professionals. Our management style and partnership approach enable us to meet your needs and provide continuous support. Due to our ongoing growth and the large number of recruitment projects we undertake for our partners, we are currently looking for: Senior Java Developer Industry: Banking Responsibilities: Design backend integration solutions for Safekeeping and Corporate Actions platform Develop Java-based microservices and integration components Test, deploy and support backend services in production Modernise and rearchitect existing codebase due to scope expansion Analyse business and system flows and clarify requirements Prepare and support test cases when needed Document system dependencies and data flows Support deployment planning and orchestration Troubleshoot production issues and analyse logs and data flows Participate in Scrum processes using JIRA Contribute to knowledge sharing and development standards Support growth and mentoring of other developers Collaborate across development, analysis, QA and infrastructure teams Requirements: Minimum 5 years of Java backend experience (Senior) or 10 years (Expert) Strong experience in large-scale enterprise environments Spring Boot and Spring Integration SQL and relational databases (preferably Oracle) Experience with messaging and event-driven integration (IBM MQ, Kafka preferred) Experience with REST services, microservices and integration patterns Maven, Git and CI/CD pipelines Automated testing with JUnit and Testcontainers Ability to analyse requirements, system flows, logs and production issues Fluent English Nice to have: Experience in banking or trading domain Experience with cloud-ready application design Experience in modernising integration in regulated domains (custody, settlement, corporate actions) Experience with containerisation and integration with legacy systems or vendor platforms Experience with test automation, static code analysis and AI-assisted development tools Offer: Private medical care Co-financing for the sports card Constant support of dedicated consultant Employee referral program

🏢 Summary: Senior Backend Engineer role focused on building and scaling JVM-based services for large-scale payment processing systems in a cloud-native, microservices architecture. The position involves integrating external payment providers, implementing event-driven workflows, and ensuring high performance and reliability of distributed services. This is a long-term remote project enhancing payment flows and compliant financial features. 🗂️ Requirements: 5+ years commercial backend development in JVM ecosystem, Experience integrating external payment platforms or financial APIs, GoCardless integration experience, Experience with cloud-based relational databases, Experience with container orchestration tools, Experience with messaging systems and asynchronous communication, Knowledge of direct debit or instant bank transfer mechanisms, Fluent English (spoken and written), Residence in Poland 📃 Skills: Java, JVM, GoCardless, SQL, Kubernetes, Docker, Messaging, Microservices, Cloud, APIs, Payments 🏢 Description: We are looking for a Senior Backend Engineer experienced in JVM technologies to join a remote product development team working on large‑scale payment processing solutions. The role involves contributing to a long‑term initiative aimed at enhancing payment flows and supporting key business requirements through modern, service‑oriented architecture. Your tasks Designing and developing backend services using JVM technologies in a cloud‑native environment Creating and maintaining integrations between internal systems and external payment providers Implementing event‑driven communication patterns and message‑based workflows Ensuring the scalability, performance, and reliability of distributed microservices Collaborating closely with product and architecture teams to deliver compliant payment features Participating in code reviews and contributing to the continuous improvement of engineering practices Requirements Minimum 5 years of commercial experience in backend development within the JVM ecosystem Hands‑on background in integrating external payment platforms or similar financial APIs GoCardless integration experience Familiarity with cloud‑based relational databases and container orchestration tools Experience with messaging systems and asynchronous communication patterns Knowledge of direct debit flows or instant bank transfer mechanisms will be a strong advantage Strong command of English, both spoken and written Residing in Poland required

🏢 Summary: Senior Software Engineer role focused on building scalable backend systems and customer-facing APIs for AI-driven logistics solutions. The position centers on designing core service layers, workflow engines, and integrations with HERE and third-party APIs to enable intelligent delivery optimization at scale. It emphasizes hands-on backend development, system reliability, and production-quality engineering. 🗂️ Requirements: Strong backend development experience, Proficiency in Python and/or TypeScript, Experience building APIs and backend systems, Experience designing scalable and distributed systems, Understanding of API design and data modeling, Experience with cloud platforms (AWS, GCP, or Azure), Experience with CI/CD practices, Experience integrating external APIs, Ability to debug and troubleshoot production systems 📃 Skills: Python, TypeScript, API, REST, DistributedSystems, AWS, GCP, Azure, CI/CD, LLM, RAG, Integration, DataModeling, Cloud, Git 🏢 Description: What's the role? We are looking for a Senior Software Engineer to build core backend systems powering next-generation agentic AI solutions for the logistics industry. The systems developed by this team optimize deliveries at scale improving driver efficiency, increasing reliability, reducing operational costs, and lowering environmental impact. In this role, you will focus on building the core service layer, customer-facing APIs, workflow engines, and integrations with HERE APIs and third-party systems that enable intelligent logistics workflows. You will work closely with senior engineers and technical leaders to design and implement scalable, reliable systems that support AI-driven planning and optimization use cases. This is a hands-on engineering role with a strong focus on backend development, system reliability, and production-quality delivery . What You’ll Do: Design, build, and maintain core backend services, APIs, and workflow orchestration systems for logistics applications Implement integrations with HERE APIs and external third-party systems to support real-world logistics workflows Translate product and technical requirements into scalable and maintainable system components Write clean, efficient, and well-tested code in Python and/or TypeScript Contribute to system design discussions and implement solutions aligned with the overall architecture Build and maintain customer-facing APIs with a strong focus on usability, performance, and reliability Ensure high-quality delivery through testing, monitoring, and debugging in production environments Collaborate with engineers, product managers, and domain experts to deliver end-to-end features Continuously improve system performance, scalability, and operational efficiency Leverage AI-assisted development tools to improve development speed and code quality Who are you? What We’re Looking For: Software engineering experience with strong backend development skills Proficiency in Python and/or TypeScript, with experience building APIs and backend systems Experience designing and building scalable services and working with distributed systems Strong understanding of API design, data modeling, and system integration patterns Experience working with cloud platforms (AWS, GCP, or Azure) and modern CI/CD practices Familiarity with building or integrating AI/ML systems (e.g., working with LLM APIs, RAG-based systems, or similar) is a plus Experience integrating with external APIs and handling real-world data and system constraints Solid debugging and problem-solving skills in production environments Ability to work independently on well-defined problems and collaborate effectively within a team Good communication skills and a pragmatic approach to engineering challenges What We Offer: The opportunity to tackle meaningful and challenging problems A chance to continuously learn and stay on top of the latest technology trends Work that has real-world impact, shaping the future of mobility and technology Regular feedback to help you grow and succeed in your role A collaborative and supportive team environment where your contributions are valued Competitive salary plus bonus Flexible working hours and a hybrid working environment Medical coverage for you and your family This role is eligible for Creative Tax Incentive scheme in Poland” or KUP (Autorskie Koszty Uzyskania Przychodu) Option to work on a B2B contract (please note: benefits, bonus and KUP do not apply in this case) Change is HERE. Apply Now! #LI-AK8   #LI-HYBRID 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. As part of HERE Technologies employment process, candidates will be required to successfully complete a pre-employment screening process. This offer and any related claims are subject to the successful completion of a pre-employment screening. This will involve employment, education, and criminal verification if applicable. HERE is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, age, gender identity, sexual orientation, marital status, parental status, religion, sex, national origin, disability, veteran status, and other legally protected characteristics. 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. Apply for this job online Email this job to a friend Share on your newsfeed Connect With Us! Not ready to apply? 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🏢 Summary: Senior Backend Engineer role focused on building and scaling backend microservices for consumer-facing platforms and internal data privacy systems. The position involves developing distributed, event-driven systems supporting personalization, search, and regulatory compliance at scale. It requires strong experience in JVM technologies and cloud-native environments. 🗂️ Requirements: Strong commercial experience with JVM-based languages (Java or Scala), Experience with Kotlin or willingness to learn, Solid understanding of microservices architecture, Experience with event-driven systems, Experience with Docker and Kubernetes, Hands-on CI/CD experience in production, Experience with unit and integration testing, Experience with relational databases and SQL, Ability to design and maintain scalable distributed systems 📃 Skills: Java, Scala, Kotlin, JVM, Microservices, Docker, Kubernetes, CI/CD, SQL, PostgreSQL, AWS, Terraform, Elasticsearch, MongoDB, GraphQL, Go, Python 🏢 Description: We are looking for a Senior Backend Engineer to join a fast-growing product organization working on consumer-facing platforms and internal data systems. This role is suited for an experienced backend engineer who is comfortable building scalable, reliable services across different domains, from customer-facing journeys to data privacy and compliance infrastructure. About the Project: You will contribute to backend systems that power core customer experiences and internal platform initiatives. Depending on the team, this includes scaling a menu and personalization platform for high-traffic consumer applications, or building a centralized Data Privacy Service handling regulatory compliance (GDPR, CCPA) and Data Subject Requests at scale. Both streams require strong engineering fundamentals, a microservices mindset, and the ability to deliver in complex, distributed environments. Responsibilities: Design, develop, and maintain scalable backend microservices across consumer or data platform domains; Build systems supporting search, personalization, customer targeting, and engagement; Develop and operate services ensuring regulatory compliance and secure data handling (GDPR, CCPA); Work with event-driven architectures and distributed systems; Contribute to CI/CD pipelines, testing practices, and overall engineering quality; Collaborate with product and engineering teams to deliver reliable and performant solutions. Qualifications: Strong commercial experience with JVM-based languages (Java, Scala, or similar); Experience with Kotlin, or willingness to learn it on the project; Solid understanding of microservices architecture and event-driven systems; Experience with Docker and Kubernetes; Hands-on CI/CD experience in a production environment; Experience with unit and integration testing; Familiarity with relational databases (e.g. PostgreSQL) and SQL; AWS and Terraform experience is a plus; Experience with Elasticsearch, MongoDB, or GraphQL is a plus; Go or Python knowledge is a nice to have; Background in e-commerce, subscription platforms, or data privacy systems is a plus. Recruitment Process: Initial interview with our recruitment team; Interview with the hiring manager; Live Coding Assessment; Meeting with the Project Manager. Inuits Sp. z o.o. is registered in the National Register of Employment Agencies (KRAZ) under number 35420.