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Senior Back-End Engineer (Node.js) Salary: 18,700-20,900 PLN/Month Warsaw, Poland (Hybrid - 3 days in office, 2 days remote) Full-time ☑️ B2B or CoE We’re looking for a Senior Back-End Engineer to join a fast-growing international tech company focused on building modern, data-driven platforms that power digital transformation in the financial and enterprise sectors. Requirements: Strong experience in building server-side applications using Node.js and Express.js. Hands-on experience... (więcej)
- Design, build, and maintain scalable, high-performance server-side applications and RESTful APIs using Node.js and Express.js.
- Guide and supervise the development of key code components to ensure long-term reliability and scalability.
- Integrate with front-end components and third-party services.
- Actively review the codebase, recommending and implementing refinements where needed.
- Write unit and integration tests and optimize performance to ensure high-quality code.
- Collaborate ...
- Strong experience in building server-side applications using Node.js and Express.js.
- Hands-on experience with API development and integration, particularly with GraphQL or RESTful services.
- Strong knowledge of authentication and authorization mechanisms (OAuth, JWT, session-based).
- Strong experience with databases such as MySQL and PostgreSQL.
- Experience writing unit tests with tools such as Chai and Mocha.
- Strong experience using Git and version control systems.
- Proficiency in ...
- Work in a fast-growing international tech company focused on building modern, data-driven platforms that power digital transformation in the financial and enterprise sectors.
- Join a technology consulting company and recruitment agency delivering software solutions to clients from Europe and the US.
- Work 100% remotely in an international team, including people from Asia, London, or San Francisco.
- Collaborate with individuals who have experience in international corporations as well as ...
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Work Model: Hybrid (3 days/week in the office) At Cognizant, we are dedicated to helping the world's leading companies build stronger businesses — helping them go from doing digital to being digital. In Poland, our offices are in Gdańsk, Wroclaw, and Kraków. However proposed offer is based in the Client office based in Warsaw. With the capacity to support various clients, we offer a world of opportunities for both professionals and graduates. You can expect five-star training, a chance to... (więcej)
- Guide and collaborate closely with developers on Angular applications (Angular CLI, RxJS, component-based architecture) and server-side logic handling CRUD operations.
- Provide expert troubleshooting and debugging support and guidance, supporting server infrastructure and operations on Linux/Unix systems, including terminal and Bash scripting.
- Lead support activities for cloud-deployed applications (GCP) and serverless environments.
- Oversee BI and analytics environments (Power BI, ...
- BSc in Computer Science, IT, or a related field or equivalent professional experience.
- Several years of experience in software support operations, technical leadership, or a technical product owner/project manager role.
- Strong understanding and skills in:
- Linux/Unix administration, Bash, and Shell scripting
- Python, JavaScript, TypeScript, HTML, CSS
- Kotlin (good to have)
- Angular framework, Angular CLI, RxJS, Jasmine, and Karma
- Relational (MySQL, PostgreSQL) and NoSQL (Firebase) ...
- Private healthcare, life insurance, and cafeteria benefits
- Training programs and certifications
- Volunteering opportunities and an inclusive culture
- Employee referral program
- Collaborative and innovative work environment
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Cześć! Z tej strony Neontri - jesteśmy firmą liczącą ponad 120 osób. Specjalizujemy się w dwóch obszarach: tworzymy systemy, które zlecają nam nasi Klienci (najczęściej tworzymy coś od zera, albo dodajemy w pełni nowe funkcjonalności) głównie z obszaru: finansowego, bankowego, fin-tech, e-commerce - choć nie tylko :) wspieramy naszych Klientów w rekrutacji Specjalistów, a naszym Kandydatom staramy się dobrać jak najlepiej dopasowane oferty (tzw. bodyleasing) Co może nas... (więcej)
- Migracja kluczowego, centralnego backendu bankowego do PostgreSQL w środowisku on-premise
- Obsługa bardzo dużych wolumenów danych i wysokiej liczby transakcji w architekturze mikroserwisowej
- Wykształcenie wyższe techniczne (preferowane kierunki: informatyka, matematyka, fizyka, elektronika, mechatronika)
- Min. 5 lat doświadczenia w administracji i optymalizacji PostgreSQL (tuning, parametryzacja, wydajność)
- Praktyczna znajomość systemów kolejkowych (Kafka i/lub RabbitMQ) oraz przetwarzania zdarzeń
- Doświadczenie w pracy z systemami o bardzo dużych wolumenach danych i wysokiej liczbie transakcji na sekundę
- Dobra znajomość środowisk konteneryzowanych ...
- Kontrakt B2B
- W pełni finansowana przez nas opieka medyczna LUX MED
- Budżet szkoleniowy
- Brak nadgodzin - balans jest najważniejszy
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We are Spyrosoft’s Robotics team – a group of specialists supporting global tech companies in designing, building, and scaling robotic platforms for mobile robots, drones, and industrial platforms. Our focus spans cloud-native architectures, real-time data processing from robots, and integration with enterprise systems. ️♂️ We’re looking for a technical leader who combines hands-on development with architecture responsibilities. Robotics experience isn’t required - what matters... (więcej)
- Work hands-on on cloud-native backend systems as part of cutting-edge robotics projects.
- Lead and support technical workshops and discovery sessions with clients to define project scope and estimations, including ballpark calculations.
- Design, validate, and implement end-to-end backend architecture in Python for cloud-based robotics platforms.
- Provide technical leadership and mentorship to the development team, helping shape code quality, architecture decisions, and best practices.
- ...
- Strong knowledge of AWS or GCP (at least one platform).
- Strong backend development experience in Python (using FastAPI, Django, or Flask).
- Strong knowledge of distributed systems design, cloud-native integrations, and APIs.
- Experience with IoT protocols (e.g., MQTT) is a plus.
- Very good English (B2/C1).
- Experience in working with clients and leading IoT or robotics projects (as tech lead, architect, or senior engineer).
- Hands-on experience with telemetry, sensor data, and edge.
- ...
- Opportunity to grow in the field of robotics.
- Work with a team of specialists supporting global tech companies.
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At Craftware, we believe that great technology starts with a deep understanding of the real needs of both our clients and our teams. We create solutions that truly matter: we build cloud applications, leverage artificial intelligence, develop Salesforce-based projects, and support companies at every stage of their digital transformation. We collaborate with organizations across a wide range of industries - from those just beginning their journey into cloud technologies to global market leaders.... (więcej)
- Design and implement LLM-powered and agent-based solutions, including RAG pipelines and knowledge retrieval systems.
- Build and orchestrate AI agents using Python and Gemini.
- Design document ingestion pipelines (chunking, embeddings, metadata enrichment).
- Integrate vector databases and internal data sources.
- Define prompt engineering strategies and evaluate LLM outputs.
- Ensure enterprise-grade security, governance, and compliance.
- Act as architect and technical lead, setting ...
- Hands-on experience building LLM and RAG-based applications.
- Strong Python skills (production-grade code).
- Experience with Gemini or other enterprise LLMs.
- Knowledge of vector databases (FAISS, Weaviate, Pinecone, or similar).
- Solid understanding of NLP (entity extraction, summarization, classification).
- Experience with prompt engineering and agent workflows.
- B2B contract.
- Daily support from team leaders.
- Dedicated certification budget.
- Assistance in defining and support in your development path.
- Benefits package.
- Integration trips/events.
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Project: Development and optimization of data pipelines for an enterprise-grade data warehouse. The project involves integration, transformation, and management of large-scale data within Teradata environments. Responsibilities: Design, develop, and maintain data flows using IBM DataStage. Model and manage data structures in Teradata data warehouse. Optimize ETL processes and SQL queries for performance. Collaborate with analysts and BI teams to ensure data consistency and quality. Document data... (więcej)
- Design, develop, and maintain data flows using IBM DataStage.
- Model and manage data structures in Teradata data warehouse.
- Optimize ETL processes and SQL queries for performance.
- Collaborate with analysts and BI teams to ensure data consistency and quality.
- Document data processing workflows and standards.
- 4 years of experience in data engineering.
- 2 years of hands-on experience with Teradata and IBM DataStage.
- Advanced SQL and ETL process knowledge.
- Experience in designing, implementing, and maintaining robust data pipelines.
- Strong problem-solving skills and attention to data integrity.
(No benefits information provided in the original text.)
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Dla naszego klienta z branży e-commerce poszukujemy osoby na stanowisko Senior Kotlin Engineer do zespołu realizującego zaawansowany projekt technologiczny oparty o rozwiązania AI. Projekt ma silny charakter R&D i koncentruje się na budowie nowego, innowacyjnego kanału sprzedaży z wykorzystaniem generatywnej sztucznej inteligencji. Zespół pracuje nad tworzeniem infrastruktury i rozwiązań agentowych opartych o LLM oraz ich integracją z istniejącymi systemami o dużej skali.... (więcej)
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Do zespołu realizującego międzynarodowy projekt IT poszukujemy Business Analityka , który wesprze rozwój produktu z obszaru IT Compliance i zarządzania kontrolami technologicznymi . Celem rozwiązania jest zapewnienie zespołom technologicznym przejrzystego widoku obowiązujących kontroli IT oraz uproszczenie krajobrazu regulacyjnego poprzez integrację wielu systemów i procesów. Projekt jest rozwijany i skalowany — obejmuje nowe obszary kontroli technologicznych oraz dalszą... (więcej)
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Praca zdalna
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 in a fully remote or remote-friendly model.
- 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 ...
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For Digital Hub Warsaw, we are looking for: Sr Data Engineer Product Core Data Asset At Bayer we’re visionaries, driven to solve the world’s toughest challenges and striving for a world where ,Health for all, Hunger for none’ is no longer a dream, but a real possibility. We’re doing it with energy, curiosity and sheer dedication, always learning from unique perspectives of those around us, expanding our thinking, growing our capabilities and redefining ‘impossible’. There are so many... (więcej)
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SNI is serving as a trusted IT Outsourcing partner in line with the needs of World's most prestigious firms and carried out successful projects worldwide. Scope: Design and deliver cloud-native, event-driven solutions on Google Cloud Platform. Develop, deploy, and operate microservice-based systems using managed cloud services and container orchestration. Build scalable backend services leveraging modern frameworks and cloud execution models. Collaborate closely with customer technical... (więcej)
- Design and deliver cloud-native, event-driven solutions on Google Cloud Platform.
- Develop, deploy, and operate microservice-based systems using managed cloud services and container orchestration.
- Build scalable backend services leveraging modern frameworks and cloud execution models.
- Collaborate closely with customer technical stakeholders to translate business and integration requirements into robust technical designs.
- Proficiency in Google Cloud Platform (Pub/Sub, Cloud Functions, Kubernetes).
- Experience in backend development with Spring Boot or .NET.
- Knowledge of microservices and event-driven architectures.
- Familiarity with REST APIs and cloud integration patterns.
- Understanding of CI/CD pipelines and cloud-native delivery.
- Awareness of security best practices in cloud environments.
- Opportunity to work with prestigious firms and on successful projects worldwide.
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For Digital Hub Warsaw, we are looking for: Senior Data Engineer Product Supply Analytics At Bayer we’re visionaries, driven to solve the world’s toughest challenges and striving for a world where ,Health for all, Hunger for none’ is no longer a dream, but a real possibility. We’re doing it with energy, curiosity and sheer dedication, always learning from unique perspectives of those around us, expanding our thinking, growing our capabilities and redefining ‘impossible’. There are so... (więcej)
48 dni temu przez TQLO SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
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Our Client is a fast-growing organization in the modern technologies sector, focused on delivering innovative and practical digital solutions. The project involves designing and optimizing advanced mobile applications as well as responsive web services delivered in an outsourcing model. We are looking for an experienced UX Designer who will take full ownership of the design process — from initial concept through to implementation of final solutions. WORK MODEL: Poznań / Warsaw (with the... (więcej)
- End-to-end design of processes and interfaces for mobile applications (iOS, Android) and responsive web services.
- Close collaboration with Product Managers, Analysts, Researchers, and Engineers to deliver value quickly and iteratively.
- Independent ownership of the entire design process — from concept and ideation, through prototyping, to supervising implementation.
- Making and justifying product decisions based on user research insights and in-depth data analysis.
- Presenting project ...
- At least 2 years of experience in designing mobile applications (iOS/Android) and responsive web solutions.
- Excellent Polish language skills (native level) and English at a minimum B2 level.
- Strong proficiency in Figma and confidence in modern, user-centered design processes.
- Experience in designing solutions for the e-commerce domain and a solid understanding of online purchasing flows.
- Practical experience in independently conducting or co-leading user research activities.
- Attractive compensation based on a B2B contract.
- A clear and efficient recruitment process consisting of one in-depth interview (approx. 1.5 hours) and an optional short meeting with the Manager.
- Participation in ambitious, large-scale projects delivered for well-known brands within a stable, long-term collaboration.
- Flexible working model.
- A partner-oriented work environment with a team of experts who value substance, knowledge sharing, and real influence on the products being built.
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Dla naszego klienta z sektora finansowego poszukujemy Scala Developerów , którzy będą odpowiedzialni za tworzenie nowoczesnych, skalowalnych rozwiązań. Projekt dotyczy rozwoju internetowej porównywarki, działającej od 16 lat i wspierającej użytkowników w wyborze oraz zakupie najlepszych ubezpieczeń komunikacyjnych, mieszkaniowych, turystycznych oraz na życie. Platforma udostępnia także rzetelne informacje na temat kredytów, pożyczek, kont bankowych i lokat, pomagając Klientom... (więcej)
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About the Role: We are looking for a Senior Software Developer to join a growing team focused on enhancing and maintaining a high-performance electronic trading platform. You will work on backend components, implement new features, and provide Level 3 production support on a rotational basis. The role offers direct collaboration with trading teams and opportunities to influence platform design and improvements. Responsibilities: Analyze, design, develop, and document Core Java server-side... (więcej)
- Analyze, design, develop, and document Core Java server-side components
- Write automated functional and performance tests using Cucumber
- Provide L3 production support in a rotational schedule (mostly aligned with London business hours)
- Collaborate with a global team and trading stakeholders
Must Have:
- 10 years of experience with Core Java development
- Experience working on trading platforms or similar real-time systems
- Java certification preferred or a degree in Computer Science
- Strong communication skills and ability to work with business stakeholders
- Experience writing automated functional and performance tests with Cucumber
Nice to Have:
- Knowledge of ION MarketView Java API
- Understanding of Fixed Income trading (Dealer-to-Client eTrading of Bonds)
- ...
- Direct collaboration with trading teams
- Opportunities to influence platform design and improvements