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Senior Java Developer SKILLS: Java | syntax C++ | PostgreSQL | Git B2B: PLN 125 - 165 / Hour LOCATION: REMOTE (POLAND) START DATE: March 2026 END DATE: June 2026 Key Services and Requirements: A Roadmap to Your Professional Success Scope of services: Rewrite existing system components from C++ to Java (primarily backend). Maintain high code quality and compliance with the established architecture. Collaborate closely with developers, analysts, testers, and the solution architect . Participate... (więcej)
- Rewrite existing system components from C++ to Java (primarily backend).
- Maintain high code quality and compliance with the established architecture.
- Collaborate closely with developers, analysts, testers, and the solution architect.
- Participate in daily stand-ups, code reviews, and other team ceremonies.
- Propose improvements to implementation and architecture when necessary.
- 5 years of professional experience in Java development.
- Strong knowledge of Java 8 and the Spring ecosystem (Spring Boot, Spring Data, etc.).
- Experience working with complex monolithic or distributed systems.
- Ability to read and analyze existing code in other technologies (e.g. C++, Delphi, .NET).
- Solid understanding of relational databases (PostgreSQL, Oracle, MySQL, etc.).
- Proficiency with Git and build tools (Maven or Gradle).
- Commitment to clean code principles, refactoring, ...
- B2B: PLN 125 - 165 / Hour
- Location: Remote (Poland)
- Start Date: March 2026
- End Date: June 2026
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Kim jest H2B Group? Jesteśmy firmą konsultingową, która pomaga klientom w automatyzacji procesów biznesowych przy pomocy AI, a specjalistom IT rozwijać karierę w modelu B2B. Oferujemy projekty z branż takich jak fintech, medtech, edutech czy automatyka przemysłowa. Dzięki ścisłej współpracy wspieramy rozwój naszych klientów poprzez dostarczanie szybkich i mierzalnych efektów, jednocześnie zapewniając specjalistom IT możliwości rozwoju kariery i zdobywania cennego... (więcej)
- Rozwój i konfiguracja Salesforce Service Cloud oraz Sales Cloud zgodnie z wymaganiami biznesowymi
- Tworzenie rozwiązań w oparciu o Lightning, Apex oraz Flows
- Projektowanie i implementacja integracji z systemami zewnętrznymi (z middleware oraz bez)
- Wykorzystanie AI w procesie developmentu (np. Vibes, rozwiązania AI w ekosystemie Salesforce)
- Współpraca z architektami i innymi developerami w zakresie najlepszych praktyk
- Aktywne uczestnictwo w społeczności Salesforce i rozwijanie...
- Min. 5 lat na stanowisku Salesforce Developer (lub podobnym)
- Bardzo dobra, praktyczna znajomość Lightning, Apex oraz Salesforce Flows
- Bardzo dobre doświadczenie w pracy z Salesforce Service Cloud i Sales Cloud
- Doświadczenie komercyjne z CloudSense
- Praktyczne wykorzystanie AI w procesie wytwarzania oprogramowania
- Doświadczenie w pracy z systemami zewnętrznymi i aplikacjami enterprise
- Bardzo dobre umiejętności komunikacyjne
- Znajomość języka angielskiego na poziomie min. ...
- Pracę zdalną
- Ciekawe projekty
- Umowę B2B bez zapisu o wyłączności
- Rozwój zawodowy
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About Altimi Altimi is a technology acceleration partner with impressive experience spanning over 20 years, specializing in the successful delivery of software development projects for international customers. We are based in Poland. Our main area of operation is the DACH region and Scandinavia, where we are known for providing top-notch software development services. Our primary focus are managed services for companies seeking to accelerate growth, solve complex tech problems, build MVP/POC... (więcej)
- Design and develop full-stack applications using Node.js and React
- Implement cloud-based solutions on Google Cloud Platform (GCP)
- Apply modern SDLC practices and rapid prototyping
- Use AI-assisted development tools (e.g. Cursor, GitHub Copilot)
- Collaborate with product and business stakeholders
- Ensure code quality, scalability, and maintainability
- 3 years of experience in software development
- Strong proficiency in Node.js and React
- Experience with GCP services (e.g. Cloud Functions, Pub/Sub, Firestore)
- Familiarity with CI/CD, microservices, and API-first design
- Experience with AI development tools and rapid prototyping
- Fluent in English (spoken and written)
- Work on innovative projects using AI and cloud technologies
- Influence technical direction and architecture
- Flexible working hours and remote work options
- Access to training and modern development tools
- Supportive team culture
- MultiSport card
- LuxMed medical package
- Allianz group insurance
- Value-based work culture
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O roli Dołączysz do zespołu Bluebinary, który rozwija nowoczesne serwisy online dla jednego z naszych klientów. Codziennie obsługujemy ponad 100 milionów zapytań (ponad 3 miliardy miesięcznie), a nasze systemy działają w oparciu o rozproszoną, wydajną infrastrukturę. Skalowalność, bezpieczeństwo i niezawodność są dla nas priorytetem, a każde rozwiązanie projektujemy z myślą o globalnym ruchu. To praca skoncentrowana na długofalowym rozwoju jednej platformy - stabilny... (więcej)
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Project description: We are building an Installation Management System – a strategic platform to digitalize installation and servicing processes for metering devices across the organization. The solution will replace paper-based workflows with a fully integrated web and mobile system, becoming the single source of truth for device and structural data while significantly improving operational efficiency. Requirements: 4 years of commercial experience delivering backend systems in C#/.NET,... (więcej)
- Design, build, and maintain backend software using C#/.NET
- Participate in gathering and analyzing business requirements working with Lead, Business Analysts, clients, and stakeholders
- Take ownership of assigned features and modules from development through deployment and maintenance
- Contribute to software architecture design and ensure proper integration across system components (mobile, backend, frontend, databases)
- Provide input on technology stack selection, architectural patterns, ...
- 4 years of commercial experience delivering backend systems in C#/.NET, including PostgreSQL and REST API development
- Production experience deploying and managing applications on Azure
- Experience working directly with clients and gathering technical requirements
- Strong sense of ownership and accountability for delivered features
- Understanding of software architecture and ability to work across different system components (backend, frontend, databases)
- Solid understanding of software ...
- [Benefits details not provided in the original text]
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Location: 100% remote Tasks Design, develop and maintain scalable backend services Build RESTful and/or GraphQL APIs Implement and maintain microservices‑based solutions Analyze and optimize application performance, memory usage and concurrency handling Write unit, integration and end‑to‑end tests to ensure code reliability and maintainability Collaborate on automated build, test and deployment pipelines using tools like Docker, Kubernetes and CI/CD platforms Maintain clear technical... (więcej)
- Design, develop and maintain scalable backend services
- Build RESTful and/or GraphQL APIs
- Implement and maintain microservices‑based solutions
- Analyze and optimize application performance, memory usage and concurrency handling
- Write unit, integration and end‑to‑end tests to ensure code reliability and maintainability
- Collaborate on automated build, test and deployment pipelines using tools like Docker, Kubernetes and CI/CD platforms
- Maintain clear technical documentation for ...
- Strong experience with GoLang development
- Strong understanding of Go routines, channels, concurrency patterns and memory management
- Nice to have: TypeScript, TypeScript features, React, Angular, NestJS, Gin, Echo
- Solid understanding of software engineering principles and best practices
- Experience with RESTful APIs, GraphQL, microservices and distributed systems
- Familiarity with databases (SQL and NoSQL) and data modeling
- Knowledge of version control systems such as Git and CI/CD ...
- Multisport card
- Private healthcare
- Access to an e‑learning platform
- Group life insurance
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At limango, we’ve been shaping the world of e-commerce for over 18 years. Together with our platforms in the Netherlands, Germany, and Austria, we are proud to be part of the OTTO Group, one of Europe’s leading e-commerce players. We offer the largest selection of products for the entire family, making us a go-to shopping destination for millions of customers across Europe. But limango is more than just a platform, it's a community. We believe in working and growing together, valuing a... (więcej)
Daily Tasks
- Integrate multiple product data streams into a centralized Product Information Management (PIM) platform.
- Maintain and enhance event-driven systems processing product offer data, including pricing, inventory, and shipping information.
- Improve system stability, scalability, and performance under high data throughput.
- Identify, troubleshoot, and resolve issues across data ingestion and processing pipelines.
Projects
- The PIE (Product Information Experience) team builds ...
Professional Requirements
- Strong proficiency in Go (3 years) with demonstrated adherence to clean code, SOLID principles, and idiomatic Go.
- Proven experience designing, building, and operating production-grade microservices.
- Hands-on experience with concurrency patterns in Go (goroutines, channels, context).
- Experience with asynchronous processing, event-driven architectures, and messaging systems.
- Solid understanding of relational and/or NoSQL databases, including schema design and...
- Challenging tasks and real impact – you’ll be directly involved in bringing new projects to life and influencing how we grow as an e-commerce business.
- Fast-paced learning environment – we’re an international team, so you’ll constantly pick up new skills and insights.
- Flexible working hours and B2B contract – choose when and how you work.
- Lots of room to grow – through hands-on experience, training, and working with experts from different parts of the world.
- Private ...
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Requirements: 7–8 years of overall experience in software development At least 3 years of hands-on experience with ServiceNow HR Service Delivery (HRSD) Strong expertise in HRSD modules and capabilities Experience with ServiceNow platform development Proven ability to design and implement workflow automation Experience building and managing integrations with external systems Solid understanding of HR data security and best practices Key Responsibilities HRSD Development & Configuration: Build... (więcej)
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HRSD Development & Configuration:
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Build and customize HR Case Management, HR Services, COEs, case templates, record producers, and Employee Center/Service Portal components.
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Ensure optimized UX and secure HR data segregation.
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Platform Development:
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Develop using Business Rules, Client Scripts, Script Includes, UI Policies, GlideRecord/GlideAjax.
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Implement ACLs, roles, and user criteria for security.
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Optimize scripts for performance and scalability.
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**Workflow & ...
- 7–8 years of overall experience in software development.
- At least 3 years of hands-on experience with ServiceNow HR Service Delivery (HRSD).
- Strong expertise in HRSD modules and capabilities.
- Experience with ServiceNow platform development.
- Proven ability to design and implement workflow automation.
- Experience building and managing integrations with external systems.
- Solid understanding of HR data security and best practices.
(No benefits information provided in the original text.)
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Jesteśmy prawdziwymi entuzjastami tematyki związanej z obszarem jakości i testów oprogramowania. Nasz Soflab Technology jest największą polską firmą specjalizującą się w testach oprogramowania, która od 2008 roku zapewnia szeroki zakres usług IT w obszarze jakości (Quality Assurance), Business Intelligence i cyberbezpieczeństwa. Jako liderzy rynku doradzamy w zakresie rozwiązań IT we wszystkich branżach i korzystamy z najlepszych technologii oraz narzędzi. Od początku... (więcej)
- Projektowanie, rozwój i wdrażanie agentów AI opartych o modele językowe (OpenAI, GPT, Gemini, inne)
- Budowanie rozwiązań typu Retrieval Augmented Generation (RAG) z wykorzystaniem baz wektorowych
- Implementacja systemów wyszukiwania hybrydowego (semantic search, fuzzy logic, trigram, FTS)
- Tworzenie i optymalizacja przepływów interakcji (prompt engineering, chainy, multi-agent orchestration)
- Optymalizacja wydajności, kosztów i jakości odpowiedzi AI
- Monitorowanie trendów w ...
- Minimum 2 lata doświadczenia w pracy z rozwiązaniami AI/ML, w tym LLM
- Doświadczenie w projektowaniu i budowie agentów AI (np. z użyciem OpenAI, LangChain, Haystack)
- Praktyczna znajomość baz wektorowych np. Supabase / PostgreSQL
- Biegła znajomość Python i/lub Java (biblioteki integracyjne, frameworki AI)
- Doświadczenie w projektowaniu i wystawianiu REST API / GraphQL
- Biegła komunikacja w języku polskim
- Znajomość języka angielskiego na poziomie min. B2
Dodatkowe ...
(więcej)- Wynagrodzenie w przedziale 15 000 - 19 000 zł VAT miesięcznie (na B2B)
- Praca do 100% zdalna
- Otwarty zespół, który pracował wspólnie nad niejednym projektem
- Możliwości rozwoju kompetencji i zdobywania wiedzy w ramach dostępu do wewnętrznej platformy e-learning
- Dostęp do kursów języka angielskiego, opieki medycznej i karty sportowej
- Wspólne spotkania i wyjazdy integracyjne
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Szukamy doświadczonego Senior Backend Developera , który pomoże nam rozwijać i skalować nowoczesną platformę webową. Jeśli Backend to Twoje naturalne środowisko, a architektura, jakość kodu i odpowiedzialność techniczna są dla Ciebie ważniejsze niż „feature factory” – zapraszamy. Zakres obowiązków: Doświadczenie w pracy z platformami obsługującymi płatności (przede wszystkim Stripe oraz Przelewy24) – projektowanie, rozwój i utrzymanie integracji Projektowanie i... (więcej)
- Doświadczenie w pracy z platformami obsługującymi płatności (przede wszystkim Stripe oraz Przelewy24) – projektowanie, rozwój i utrzymanie integracji
- Projektowanie i rozwój Backendu w Pythonie (Django / Django REST Framework)
- Współtworzenie architektury systemu (monolit, integracje, async, background tasks)
- Optymalizacja wydajności i skalowalności aplikacji
- Integracje z systemami zewnętrznymi (API, webhooki, płatności, usługi third-party)
- Dbanie o jakość kodu: code...
- Minimum 5 lat doświadczenia w Backendzie
- Bardzo dobra znajomość Pythona i Django
- Doświadczenie z Django REST Framework
- Praktyczna znajomość baz danych PostgreSQL
- Doświadczenie z Docker / Docker Compose
- Znajomość zagadnień async (Celery, Redis, kolejki)
- Umiejętność projektowania API i pracy z dokumentacją
- Samodzielność, odpowiedzialność i techniczne myślenie
Mile widziane:
- Doświadczenie w projektowaniu większych systemów (DDD, CQRS, wzorce projektowe)
- ...
- Realny wpływ na produkt i architekturę
- Pracę przy sensownym, długoterminowym projekcie
- Dużą autonomię techniczną
- Elastyczne godziny pracy i pracę zdalną
- Współpracę B2B lub UoP
- Wynagrodzenie adekwatne do doświadczenia
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Montrose Software supports one of the largest North American banks in enhancing and maintaining its financial libraries and applications. The bank serves over 17 million clients worldwide, employs more than 86,000 people, and offers a broad range of services including personal and commercial banking, wealth management, insurance, investor services, and capital markets products. Within this engagement, we are part of the structured rates products team, responsible for developing analytics... (więcej)
- Develop and maintain backend functionality and integrate it with the frontend.
- Implement new features, optimize existing functionality, and fix bugs.
- Work together with other developers to deliver high-quality results.
- Participate in regular meetings: Daily at 15:30 CET and weekly retrospective.
- Excellent knowledge of Python programming language with type hinting.
- Experience with large codebases and hands-on experience.
- Ability to use Git version control system.
- Knowledge of Docker, Kubernetes, and Ansible.
- Unit testing skills.
- Knowledge of JavaScript and React.
- Experience leveraging AI agents for software development.
- Fluent in spoken and written English. Nice to have:
- Familiarity with C++.
- Experience in a quantitative finance environment.
- Experience in ...
- Top-quality equipment to support your work.
- Flexible working hours and remote work option.
- Exciting and challenging projects with international teams.
- Learning & Development: English lessons with a native speaker and a dedicated training budget for personal and professional growth.
- Health & Well-being: Private medical insurance, Multisport card, air-conditioned workspace, and showers available at the office.
- Food & Comfort: Lunches from Kraków’s top restaurants delivered to the ...
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Senior Backend Engineer (Java/Kotlin) We are looking for an experienced Backend Engineer to join a team building modern, scalable systems based on a microservices architecture. This role offers real influence over technical decisions, system architecture, and the quality of delivered solutions—particularly within payment and subscription platforms. Responsibilities Design, develop, and maintain backend systems using Java or Kotlin and the Spring Framework Build and evolve microservices... (więcej)
- Design, develop, and maintain backend systems using Java or Kotlin and the Spring Framework
- Build and evolve microservices following DDD, CQRS, and Hexagonal Architecture principles
- Implement event-driven communication, ideally using Apache Kafka
- Work with relational databases (PostgreSQL or other SQL databases) and optimize queries
- Write unit and integration tests using JUnit, Mockito, and Testcontainers
- Contribute to the design and development of cloud-based solutions (AWS or GCP) ...
- Strong experience with Java and/or Kotlin
- Solid knowledge of Spring / Spring Boot
- Hands-on experience with SQL and relational databases (preferably PostgreSQL)
- Proven background in microservices-based architectures
- Experience with event-driven systems (Kafka is a strong plus)
- Practical experience with backend testing (JUnit, Mockito, Testcontainers)
- Experience working with cloud platforms (AWS or GCP)
- Good understanding of Domain-Driven Design (DDD), CQRS, and Hexagonal ...
- Experience working with high-scale, high-availability systems
- Knowledge of security and transactional data handling
- Background in product-driven, Agile environments
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SPEEDNET | We build software for the banking, finance and insurance industry. Jesteśmy z Gdańska i… robimy software. Nasz zespół tworzy ponad 230 programistów specjalizujących się w aplikacjach webowych i mobilnych. Jesteśmy zaufanym partnerem dla kilkudziesięciu klientów, których od ponad 24 lat wspieramy w dostarczaniu złożonych rozwiązań programistycznych, od product designu, przez tworzenie oprogramowania, testowanie czy consulting technologiczny. W naszym portfolio... (więcej)
- Develop software for the banking, finance, and insurance industry.
- Work on projects for an international financial institution in Northern Europe.
- Contribute to the development of modern banking systems with a focus on stability, security, scalability, and high code quality.
- Engage in a technically advanced environment based on microservices architecture and modern engineering practices.
- Minimum 5 years of experience in software development and systems engineering.
- Strong knowledge of Java and the Spring ecosystem (Spring Framework, Spring Boot, Spring Batch).
- Experience in designing and developing applications based on microservices architecture.
- Practical knowledge of modern technologies and tools such as Docker, Kubernetes, and DB2 and/or Oracle databases.
- Hands-on experience with CI/CD tools including Jenkins, Git, and Bitbucket.
- Familiarity with REST, Maven, ...
- Flexible work environment with a culture based on trust and partnership.
- Long-term cooperation based on B2B.
- Remote work and flexible working hours to support work-life balance.
- English and German language classes.
- Access to a library of company e-books.
- Medical package and sports card.
- Unlimited company drinks and numerous team-building events.
- Modern office on the 20th floor of Olivia Star, featuring billiards, foosball, pinball, chillout room, breakfast cupboard, delicious ...
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O roli Dołączysz do zespołu Bluebinary, który rozwija nowoczesne serwisy online dla jednego z naszych klientów. Codziennie obsługujemy ponad 100 milionów zapytań (ponad 3 miliardy miesięcznie), a nasze systemy działają w oparciu o rozproszoną, wydajną infrastrukturę. Skalowalność, bezpieczeństwo i niezawodność są dla nas priorytetem, a każde rozwiązanie projektujemy z myślą o globalnym ruchu. To praca skoncentrowana na długofalowym rozwoju jednej platformy - stabilny... (więcej)
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We are currently recruiting for a permanent Senior ABAP Developer role. We are looking for a candidate with a strong technical mindset — someone who can: Tackle complex technical challenges Break them down analytically and logically Design robust, scalable, and efficient solutions Key Responsibilities: Design, develop, and deliver object-oriented ABAP solutions for enterprise-scale S/4HANA systems. Build high-quality, maintainable solutions using ABAP OO , ALV , ALE , BAPIs , OData services ,... (więcej)
- Design, develop, and deliver object-oriented ABAP solutions for enterprise-scale S/4HANA systems.
- Build high-quality, maintainable solutions using ABAP OO, ALV, ALE, BAPIs, OData services, and JSON-based integrations.
- Keep up to date with new SAP technologies and continuously develop technical expertise.
- Follow development best practices and coding standards to ensure performance, readability, maintainability, and proper version control.
- Work closely with business stakeholders to ...
- At least 6 years of professional experience in ABAP/SAP development.
- Solid understanding of data structures, algorithms, and clean, well-organized coding practices.
- Strong expertise in ABAP OO and system integrations, particularly OData services and JSON interfaces.
- Fluency in Polish and English at a minimum B2 level.
- Ability to manage multiple tasks and initiatives while maintaining a high standard of quality.
- Excellent analytical thinking, problem-solving skills, and attention to ...
- The opportunity to work fully remote from Poland.
- A tailored onboarding program to help you settle in quickly and comfortably from day one.
- Comprehensive health and well-being support, including:
- Group life insurance
- Co-financing of a sports card and participation in sports initiatives
- Extensive private medical care
- Health awareness initiatives such as Health Week
- A strong and engaging company culture, with access to cultural benefits, including:
- E-books and audiobooks for ...