Senior Java Developer

🏢 Summary: Backend Developer role in a large-scale European e-commerce platform focused on building and evolving high-traffic sales-support systems. The position involves developing microservices-based solutions, including recommendation engines and campaign reporting systems, while contributing to architectural transformation towards Domain Driven Design. The role requires strong Java expertise and active participation in system design and optimization. 🗂️ Requirements: Minimum 3–4 years of experience with Java, Experience in designing and optimizing system architecture, Experience in backend services and API development, Experience working with microservices architecture, Ability to write and maintain automated tests, Experience collaborating in cross-functional teams, Communicative English (B2 level) 📃 Skills: Java, Kotlin, Microservices, API, DDD, Backend, Testing 🏢 Description: 🌍 Hello World! Jesteśmy The Codest – międzynarodową firmą technologiczną z siedzibą w Londynie oraz hubami technologicznymi w Polsce. Od lat specjalizujemy się w tworzeniu aplikacji webowych, rozwiązaniach chmurowych, utrzymaniu i rozwoju systemów oraz zapewnianiu jakości oprogramowania. Przez wiele lat rozwijaliśmy także własny produkt – Yieldbird, który został wyróżniony w rankingu Deloitte Top25. To doświadczenie pozwoliło nam dogłębnie poznać wyzwania, z jakimi mierzą się zespoły techniczne na etapie budowy i skalowania produktów. Obecnie wspieramy firmy w rozwoju ich produktów oraz w rozbudowie zespołów technicznych. Pracujemy w oparciu o transparentną komunikację i realny wpływ na tworzone rozwiązania. Stale się rozwijamy i poszukujemy osób, które chcą rosnąć razem z nami. Jeśli szukasz stabilnego miejsca pracy, ambitnych projektów i partnerskiej atmosfery – zapraszamy do zespołu. 💡 Opis projektu: Jedna z największych platform e-commerce w Europie, z której codziennie korzystają miliony użytkowników. Firma łączy sprzedawców – od małych biznesów po globalne marki – z klientami, oferując ogromny wybór produktów, szybkie dostawy i dopracowane doświadczenie zakupowe. Organizacja rozwija produkty o bardzo dużej skali, podejmuje decyzje w oparciu o dane i eksperymenty, a kultura pracy sprzyja samodzielności, odpowiedzialności oraz realnemu wpływowi na rozwój usług i doświadczenie zakupowe w regionie. Dołączysz do zespołu odpowiedzialnego za rozwój i wdrażanie kluczowych rozwiązań wspierających sprzedaż oraz efektywność ofert, w tym budowę mechanizmu automatycznego rekomendowania ofert o wysokim potencjale sprzedażowym, tworzenie systemu raportującego skuteczność kampanii promocyjnych dla sprzedawców, rozwój funkcjonalności ofert promowanych na rynkach międzynarodowych oraz stopniową transformację architektury tego obszaru w kierunku Domain Driven Design. Start projektu: Lipiec 2026 📈 Wymagania: Minimum 3-4 lata doświadczenie w pracy z językiem Java Komercyjne doświadczenie z Kotlinem Projektowanie, rozwój i optymalizacja architektury nowych rozwiązań oraz ulepszanie istniejących systemów Tworzenie, testowanie i utrzymywanie wysokiej jakości kodu dla usług backendowych, API oraz automatyzacji Praca w środowisku opartym o architekturę mikroserwisową Współpraca z zespołami produktowymi, analitykami danych, UX oraz innymi inżynierami przy definiowaniu wymagań Koordynacja zadań i działań w ramach pracy zespołowej Angielski na poziomie komunikacyjnym (B2) Mile widziane doświadczenie w Kotlinie 📜 Nasza oferta: 14-18k PLN na B2B. Dostęp do platformy Worksmile, gdzie co miesiąc przysługuje ci 300zł do wykorzystania na giftcardy lub różnego rodzaju usługi Środowisko pracy doceniające rozwój i innowacje – ty masz pomysły, my chcemy je usłyszeć 😉 📌 Proces rekrutacyjny: 20-30 minutowa rozmowa z naszą rekruterką, Ewą 45-60 minutowa rozmowa techniczna z naszym developerem 60 minut rozmowy technicznej z team leaderem 60 minut rozmowy technicznej z klientem Oferta

🏢 Summary: B2B offer for a Mid/Senior Python Engineer to develop and maintain an AI assistant supporting Customer Experience for a large European e-commerce platform. The role focuses on backend development, API integrations, and building Agentic AI solutions using modern AI frameworks. The position involves designing scalable, secure systems and automating complex business processes. 🗂️ Requirements: Minimum 3 years of commercial experience for Mid or 5 years for Senior, Strong experience in backend development with Python, Strong experience with API integrations and data piping, Experience with GraphQL, Experience with Agentic AI architectures, Experience with tool-calling execution mechanisms, Ability to translate complex business rules into programmatic logic, Fluent Polish, Availability to start in July 📃 Skills: Python, GraphQL, LangGraph, LangChain, API, AgenticAI, ToolCalling, DataPiping, Kotlin, Java, Azure 🏢 Description: 🌍 Hello World! Jesteśmy The Codest - International Tech Software Company z centrami technologicznymi w Polsce dostarczającymi globalne rozwiązania i projekty IT. Nasze podstawowe wartości leżą w podejściu „Klienci i ludzie na pierwszym miejscu”, które stawia na pierwszym miejscu potrzeby naszych klientów i środowisko współpracy dla naszych pracowników, dzięki czemu dostarczamy naprawdę wyjątkowe produkty i usługi. Nasze doświadczenie koncentruje się na tworzeniu stron internetowych, DevOps oraz QA. Nasza misja stała się jasna po wielu latach tworzenia oprogramowania, obecnie specjalizujemy się w skalowaniu zespołów technologicznych dla klientów i partnerów. 💡 Opis projektu: Nasz klient to jedna z największych platform e-commerce w Europie, z której codziennie korzystają miliony użytkowników. Firma łączy sprzedawców – od małych biznesów po globalne marki – z klientami, oferując ogromny wybór produktów, szybkie dostawy i dopracowane doświadczenie zakupowe. Szukamy Python Engineerów (mid i senior), którzy/e weźmą udział w projekcie rozwoju asystenta AI na potrzeby obszaru Customer Experience. 📈 Zadania : Rozwój i utrzymanie asystenta AI dedykowanego obszarowi Customer Experience. Projektowanie i implementacja integracji API oraz przepływów danych (data piping). Tworzenie logiki backendowej w Pythonie z wykorzystaniem GraphQL. Budowanie i rozwijanie agentów AI w oparciu o architektury Agentic AI (LangGraph/LangChain). Implementacja mechanizmów tool-calling execution w ramach systemu agentowego. Mapowanie złożonych reguł biznesowych ( m.in . kwalifikowalność do zwrotów i prowizji) na logikę programistyczną. Współpraca z zespołem Customer Experience w celu identyfikacji i automatyzacji procesów biznesowych. Zapewnienie jakości, skalowalności i bezpieczeństwa tworzonych rozwiązań. Udział w code review oraz dokumentowanie implementowanych rozwiązań. 🔑 Wymagania: Co najmniej 3 lata komercyjnego doświadczenia na podobnym stanowisku na role mida oraz 5 lat na role seniora. Silne doświadczenie w integracji API, przepływach danych (data piping) oraz rozwoju backendu (Python, graphQL). Znajomość architektur Agentic AI (Langgraph/Langchain) i wykonywania wywołań narzędzi (tool-calling execution). Umiejętność mapowania złożonych reguł biznesowych (np. kwalifikowalność do zwrotu/prowizji) na logikę programistyczną. Płynna znajomość języka polskiego. Dostępność do rozpoczęcia projektu od lipca. Mile widziane: Znajomość Kotlin/Java. Usługi chmurowe MS Azure. Doświadczenie w obsłudze bezpiecznych danych użytkownika i transakcyjnych/finansowych interfejsów API. 📜 Oferujemy: 14-25k PLN on B2B Płatne dni wolne w święta kalendarzowe w przypadku rozliczenia miesięcznego ryczałtowego. Dostęp do platformy Worksmile, gdzie co miesiąc przysługuje ci 300zł do wykorzystania na giftcardy lub różnego rodzaju usługi Środowisko pracy doceniające rozwój i innowacje – ty masz pomysły, my chcemy je usłyszeć 😉 📌 Recruitment process: 30 minutowa rozmowa z naszą rekruterką - Justyną 1h rozmowy technicznej 1h rozmowy z klientem Oferta Pytania? Napisz: justyna.pazdalska@thecodest.co

🏢 Summary: Senior React Developer role focused on building and scaling a modern web application for managing multi-channel advertising campaigns on a high-traffic e-commerce platform. The position involves developing performant, data-intensive interfaces and integrating with backend systems via APIs. The project requires high standards in quality, security, and deployment automation. 🗂️ Requirements: 4+ years of experience with React in web applications, Strong knowledge of JavaScript and TypeScript, Experience with state management libraries (Redux, React Query or similar), Experience with REST API and GraphQL integration, Knowledge of frontend architecture and component design principles, Understanding of SOLID and clean code practices, Experience in web performance optimization, Ability to work with large data sets in near real-time applications 📃 Skills: React, JavaScript, TypeScript, Redux, ReactQuery, REST, GraphQL, HTML, CSS, SOLID 🏢 Description: 🌍 Hello World! Jesteśmy The Codest - International Tech Software Company z centrami technologicznymi w Polsce dostarczającymi globalne rozwiązania i projekty IT. Nasze podstawowe wartości leżą w podejściu „Klienci i ludzie na pierwszym miejscu”, które stawia na pierwszym miejscu potrzeby naszych klientów i środowisko współpracy dla naszych pracowników, dzięki czemu dostarczamy naprawdę wyjątkowe produkty i usługi. Nasza podróż tutaj się nie kończy - chcemy dalej kontynuować nasz rozwój. Jeśli szukasz nowych możliwości, dołącz do naszego zespołu! 💡 Opis projektu: Jedna z największych platform e-commerce w Europie, z której codziennie korzystają miliony użytkowników. Firma łączy sprzedawców – od małych biznesów po globalne marki – z klientami, oferując ogromny wybór produktów, szybkie dostawy i dopracowane doświadczenie zakupowe. Zespół rozwija skalowalne systemy o bardzo dużym natężeniu ruchu, pracuje w oparciu o dane i eksperymenty, a kultura sprzyja samodzielności, odpowiedzialności i realnemu wpływowi na rozwój produktu oraz sposób robienia zakupów w regionie. Dołączysz do zespołu, który buduje nową platformę do planowania i uruchamiania kampanii reklamowych w wielu kanałach jednocześnie, używaną przez największe marki na rynku. Po stronie frontendowej będziesz rozwijać nowoczesną aplikację webową w React, odpowiedzialną za zarządzanie kampaniami, budżetami, raportowaniem oraz integracjami z systemami reklamowymi poprzez rozbudowane API. Projekt wymaga tworzenia wydajnych, skalowalnych interfejsów użytkownika oraz pracy z dużą ilością danych w czasie zbliżonym do rzeczywistego. Pracujemy w środowisku z wysokimi wymaganiami jakościowymi, bezpieczeństwa oraz automatyzacji wdrożeń. Szukamy doświadczonego Senior React Developera , który będzie rozwijać frontend aplikacji, dbać o jakość kodu oraz współpracować z zespołem produktowym i backendowym w dostarczaniu dopracowanych rozwiązań. 📈 Co cię czeka na tym stanowisku: Rozwój i utrzymanie aplikacji frontendowej w React. Tworzenie skalowalnych komponentów oraz dbanie o spójność UI. Współpraca z zespołami backendowymi przy integracjach poprzez REST/GraphQL API. Optymalizacja wydajności aplikacji oraz praca nad UX dla dużych zbiorów danych. Udział w dyskusjach technicznych, proponowanie usprawnień i dobrych praktyk. 🔑 Wymagania: Wieloletnie doświadczenie w tworzeniu aplikacji webowych w React (min. 4–5 lat). Bardzo dobra znajomość JavaScript/TypeScript oraz nowoczesnego ekosystemu frontendowego. Doświadczenie w pracy z narzędziami takimi jak Redux, React Query lub inne biblioteki do zarządzania stanem. Znajomość zasad projektowania komponentów, architektury frontendowej oraz dobrych praktyk (SOLID, clean code). Umiejętność pracy z REST API oraz GraphQL. Znajomość zagadnień wydajności aplikacji webowych (profilowanie, lazy loading, optymalizacja renderowania). Swoboda w pracy zespołowej oraz udział w rozmowach technicznych. Gotowość do dzielenia się wiedzą i wspierania innych członków zespołu. 📜 Nasza oferta: 22-26k PLN na B2B Dostęp do platformy Worksmile, gdzie co miesiąc przysługuje ci 300zł do wykorzystania na giftcardy lub różnego rodzaju usługi Środowisko pracy doceniające rozwój i innowacje – ty masz pomysły, my chcemy je usłyszeć 😉 📌 Proces rekrutacyjny: 30 minutowa rozmowa z naszą rekruterką, Ewą 1h rozmowa techniczna z naszym developerem 1h rozmowa z team leaderem Oferta

🏢 Summary: Senior React Developer role focused on building and scaling a modern web application for managing multi-channel advertising campaigns on a high-traffic e-commerce platform. The position involves developing performant, data-intensive interfaces integrated with REST and GraphQL APIs in a high-quality, automated environment. The role emphasizes frontend architecture, code quality, and collaboration with backend and product teams. 🗂️ Requirements: 4+ years experience with React in web applications, Strong knowledge of JavaScript, Strong knowledge of TypeScript, Experience with state management libraries (Redux or React Query), Experience with REST API integration, Experience with GraphQL, Knowledge of frontend architecture and component design principles, Understanding of web performance optimization techniques 📃 Skills: React, JavaScript, TypeScript, Redux, ReactQuery, REST, GraphQL, HTML, CSS, SOLID 🏢 Description: 🌍 Hello World! Jesteśmy The Codest - International Tech Software Company z centrami technologicznymi w Polsce dostarczającymi globalne rozwiązania i projekty IT. Nasze podstawowe wartości leżą w podejściu „Klienci i ludzie na pierwszym miejscu”, które stawia na pierwszym miejscu potrzeby naszych klientów i środowisko współpracy dla naszych pracowników, dzięki czemu dostarczamy naprawdę wyjątkowe produkty i usługi. Nasza podróż tutaj się nie kończy - chcemy dalej kontynuować nasz rozwój. Jeśli szukasz nowych możliwości, dołącz do naszego zespołu! 💡 Opis projektu: Jedna z największych platform e-commerce w Europie, z której codziennie korzystają miliony użytkowników. Firma łączy sprzedawców – od małych biznesów po globalne marki – z klientami, oferując ogromny wybór produktów, szybkie dostawy i dopracowane doświadczenie zakupowe. Zespół rozwija skalowalne systemy o bardzo dużym natężeniu ruchu, pracuje w oparciu o dane i eksperymenty, a kultura sprzyja samodzielności, odpowiedzialności i realnemu wpływowi na rozwój produktu oraz sposób robienia zakupów w regionie. Dołączysz do zespołu, który buduje nową platformę do planowania i uruchamiania kampanii reklamowych w wielu kanałach jednocześnie, używaną przez największe marki na rynku. Po stronie frontendowej będziesz rozwijać nowoczesną aplikację webową w React, odpowiedzialną za zarządzanie kampaniami, budżetami, raportowaniem oraz integracjami z systemami reklamowymi poprzez rozbudowane API. Projekt wymaga tworzenia wydajnych, skalowalnych interfejsów użytkownika oraz pracy z dużą ilością danych w czasie zbliżonym do rzeczywistego. Pracujemy w środowisku z wysokimi wymaganiami jakościowymi, bezpieczeństwa oraz automatyzacji wdrożeń. Szukamy doświadczonego Senior React Developera , który będzie rozwijać frontend aplikacji, dbać o jakość kodu oraz współpracować z zespołem produktowym i backendowym w dostarczaniu dopracowanych rozwiązań. 📈 Co cię czeka na tym stanowisku: Rozwój i utrzymanie aplikacji frontendowej w React. Tworzenie skalowalnych komponentów oraz dbanie o spójność UI. Współpraca z zespołami backendowymi przy integracjach poprzez REST/GraphQL API. Optymalizacja wydajności aplikacji oraz praca nad UX dla dużych zbiorów danych. Udział w dyskusjach technicznych, proponowanie usprawnień i dobrych praktyk. 🔑 Wymagania: Wieloletnie doświadczenie w tworzeniu aplikacji webowych w React (min. 4–5 lat). Bardzo dobra znajomość JavaScript/TypeScript oraz nowoczesnego ekosystemu frontendowego. Doświadczenie w pracy z narzędziami takimi jak Redux, React Query lub inne biblioteki do zarządzania stanem. Znajomość zasad projektowania komponentów, architektury frontendowej oraz dobrych praktyk (SOLID, clean code). Umiejętność pracy z REST API oraz GraphQL. Znajomość zagadnień wydajności aplikacji webowych (profilowanie, lazy loading, optymalizacja renderowania). Swoboda w pracy zespołowej oraz udział w rozmowach technicznych. Gotowość do dzielenia się wiedzą i wspierania innych członków zespołu. 📜 Nasza oferta: Płatne dni wolne w święta kalendarzowe Dostęp do platformy Worksmile, gdzie co miesiąc przysługuje ci 300zł do wykorzystania na giftcardy lub różnego rodzaju usługi Środowisko pracy doceniające rozwój i innowacje – ty masz pomysły, my chcemy je usłyszeć 😉 📌 Proces rekrutacyjny: 30 minutowa rozmowa z naszą rekruterką, Ewą 1h rozmowa techniczna z naszym developerem 1h rozmowa z team leaderem Oferta

🏢 Summary: Hybrid Java Backend Developer role focused on building and maintaining Java-based services and REST APIs within a microservices architecture. The position involves contributing to system architecture, ensuring reliability and security, and supporting production systems in an Agile/DevOps environment. You will work with CI/CD pipelines, automated testing, and modern cloud-native tools. 🗂️ Requirements: Strong commercial experience with Java 8+, Experience with Spring Boot, Hands-on experience with REST APIs, Experience with microservices architecture, Experience with SQL databases, Knowledge of PostgreSQL or Oracle, Familiarity with React, Experience with messaging systems, Experience with Kubernetes, Experience with CI/CD pipelines, Experience with Git, Knowledge of build tools Maven or Gradle, Experience with monitoring tools, Understanding of application security practices, Experience in Agile or DevOps environments, Advanced English proficiency 📃 Skills: Java, Spring, SpringBoot, REST, Microservices, SQL, PostgreSQL, Oracle, React, MQ, Solace, Redis, Kubernetes, CICD, Git, Maven, Gradle, Grafana, Splunk, Prometheus, Jenkins, Agile, DevOps 🏢 Description: 🌍 Hello World! We are The Codest -  International Tech Software Company with tech hubs in Poland delivering global IT solutions and projects. Our core values lie in “Customers and People First” approach that prioritises the needs of our customers and a collaborative environment for our employees, enabling us to deliver exceptional products and services. Our expertise centers on web development, cloud engineering, DevOps and quality. After many years of developing our own product - Yieldbird, which was honored as a laureate of the prestigious Top25 Deloitte awards, we arrived at our mission: to help tech companies build impactful product and scale their IT teams through boosting IT delivery performance. Through our extensive experience with product development challenges, we have become experts in building digital products and scaling IT teams. But our journey does not end here - we want to continue our growth. If you’re goal-driven and looking for new opportunities, join our team! What awaits you is an enriching and collaborative environment that fosters your growth at every step. 💡 Project Description: In this role, you’ll develop and maintain Java-based services and REST APIs, collaborate closely with cross-functional teams, and contribute to system architecture with a strong focus on reliability, security, and code quality. You’ll also take part in the full software development lifecycle, including CI/CD processes, automated testing, code reviews, and production support. Please note: this is a hybrid position, you will be expected to come into the office 6-8 days per month overall (the office is located in Kraków). 📈 Your Responsibilities : Develop and maintain Java backend services, REST APIs, and microservices Collaborate with cross-functional teams to deliver scalable solutions Support production systems, resolve incidents, and troubleshoot issues Contribute to system architecture focused on performance and reliability Work in Agile teams using CI/CD, automated testing, and code reviews Maintain technical documentation and improve engineering practices Act as a technical SME for application and support-related topics Identify and manage risks, dependencies, and delivery blockers 🔑 Key Requirements: Advanced English in speaking and writing Strong commercial experience with Java (8+/11+/17+/21) and Spring Boot Hands-on experience with REST APIs, microservices, and SQL databases (PostgreSQL, Oracle) Familiarity with React, MQ/Solace, Redis, and Kubernetes Experience with CI/CD, Git, Maven/Gradle, and DevOps tooling Knowledge of monitoring and observability tools (Grafana, Splunk, Prometheus, Jenkins, etc.) Understanding of application security and testing practices Experience working in Agile / DevOps environments Strong communication skills and ability to work across distributed teams Self-driven, customer-oriented, and comfortable owning tasks end-to-end 📜 Our Promise (what you can expect from us): 17-22k PLN on B2B 300 PLN to use on our benefits platform, Worksmile - gift cards, medical services, sports, etc. Our B2B contract contains provisions that allow you to obtain IP BOX support Integration events, education opportunities and much more… A unique opportunity to take your career to the next level - we’re looking for people who want to create an impact. You have ideas, we want to hear them! 📌 Recruitment process: 30 minute screening call online with our recruiter 1 hour screening call online with our developer 1 hour technical call with the client 30 minute call with the team leader Offer Questions, insights? Feel free to reach out to our recruiting team: ewa.szczodrak@thecodest.co In the meantime, feel free to visit our website where you can find key facts about us.

🏢 Summary: Hybrid iOS Developer role focused on building scalable, high-performance mobile applications using Swift and SwiftUI. The position involves full lifecycle development, from design to deployment, with strong emphasis on architecture, code quality, and optimization. You will collaborate with cross-functional teams to deliver and enhance user-centric iOS solutions. 🗂️ Requirements: 5+ years of commercial experience in iOS development, Strong practical knowledge of Swift and SwiftUI, Experience with iOS architectural patterns, Experience with modular application design, Understanding of concurrency (GCD, OperationQueue, Modern Concurrency), Experience writing unit and snapshot tests, Proficiency with Git and collaborative workflows, Strong debugging and problem-solving skills, Knowledge of mobile application security best practices 📃 Skills: Swift, SwiftUI, iOS, GCD, OperationQueue, Concurrency, UnitTesting, SnapshotTesting, Git, Architecture, Modularization, Security 🏢 Description: 🌍 Hello World! We are The Codest -  International Tech Software Company with tech hubs in Poland delivering global IT solutions and projects. Our core values lie in “Customers and People First” approach that prioritises the needs of our customers and a collaborative environment for our employees, enabling us to deliver exceptional products and services. Our expertise centers on web development, cloud engineering, DevOps and quality. After many years of developing our own product - Yieldbird, which was honored as a laureate of the prestigious Top25 Deloitte awards, we arrived at our mission: to help tech companies build impactful product and scale their IT teams through boosting IT delivery performance. Through our extensive experience with product development challenges, we have become experts in building digital products and scaling IT teams. But our journey does not end here - we want to continue our growth. If you’re goal-driven and looking for new opportunities, join our team! What awaits you is an enriching and collaborative environment that fosters your growth at every step. 💡 Project Description: As part of the project, you’ll work with Swift and iOS frameworks to develop scalable, user-friendly solutions while collaborating closely with cross-functional teams throughout the entire development lifecycle — from product design to deployment. Please note: this is a hybrid position, you will be expected to come into the office 6 days per month overall (the office is located in Kraków). 📈 Your Responsibilities : Design and develop high-quality iOS applications with a strong focus on performance, scalability, and user experience Collaborate with product, design, backend, and engineering teams to deliver new features and improve existing solutions Ensure application quality through testing, debugging, code reviews, and continuous optimization across iOS devices Troubleshoot performance, integration, and functionality issues while maintaining clean, well-structured code Contribute to architectural decisions, project estimation, and development planning Follow modern iOS development best practices and stay up to date with the latest technologies and trends 🔑 Key Requirements: Advanced English in speaking and writing 5+ years of commercial experience in iOS development Strong practical knowledge of Swift and SwiftUI Experience with iOS architectural patterns and modular application design Solid understanding of concurrency (GCD, OperationQueue, Modern Concurrency) Experience writing unit and snapshot tests Good knowledge of Git and collaborative development workflows Strong debugging and problem-solving skills Understanding of security best practices for mobile applications 📜 Our Promise (what you can expect from us): 17-22k PLN on B2B 300 PLN to use on our benefits platform, Worksmile - gift cards, medical services, sports, etc. Our B2B contract contains provisions that allow you to obtain IP BOX support Integration events, education opportunities and much more… A unique opportunity to take your career to the next level - we’re looking for people who want to create an impact. You have ideas, we want to hear them! 📌Recruitment process: 30 minute screening call online with our recruiter 1 hour screening call online with our developer 1 hour technical call with the client 30 minute call with the team leader Offer Questions, insights? Feel free to reach out to our recruiting team: ewa.szczodrak@thecodest.co In the meantime, feel free to visit our website where you can find key facts about us.

🏢 Summary: Development of a secure, multi-tenant SaaS platform for managing sensitive HR and identity data, with strong emphasis on access control, auditability, and data governance. The role covers end-to-end delivery of backend services and web applications, including REST APIs, business logic, database design, frontend features, automated testing, and API documentation. Fully remote B2B position with high impact on product architecture and engineering practices. 🗂️ Requirements: 5+ years experience building production web applications, Proficiency in at least one modern language (PHP, TypeScript/Node.js, Python or similar), Strong REST API design knowledge (resources, idempotency, versioning, error handling), Experience with relational databases (schema design, query analysis, migrations), Experience with unit and integration testing, Proficient with Git (branching, pull requests, rebasing, conflict resolution), Experience using AI coding assistants in engineering workflows, Strong written English for technical documentation 📃 Skills: PHP, TypeScript, Node.js, Python, REST, SQL, Git, OpenAPI, UnitTesting, IntegrationTesting 🏢 Description: Fullstack Engineer 🌍 Hello World! We are The Codest -  International Tech Software Company with tech hubs in Poland delivering global IT solutions and projects. Our core values lie in “Customers and People First” approach that prioritises the needs of our customers and a collaborative environment for our employees, enabling us to deliver exceptional products and services. Our expertise centers on web development, cloud engineering, DevOps and quality. After many years of developing our own product - Yieldbird, which was honored as a laureate of the prestigious Top25 Deloitte awards, we arrived at our mission: to help tech companies build impactful product and scale their IT teams through boosting IT delivery performance. Through our extensive experience with product development challenges, we have become experts in building digital products and scaling IT teams. But our journey does not end here - we want to continue our growth. If you’re goal-driven and looking for new opportunities, join our team! What awaits you is an enriching and collaborative environment that fosters your growth at every step. 💡 Project Description: In this project, you will develop and enhance a secure, multi-tenant SaaS platform for managing sensitive HR and identity-related data, with a strong focus on access control, auditability, and data governance. Deliver end-to-end features across backend services and web applications, covering REST API development, business logic implementation, database design, frontend functionality, automated testing, and API documentation. 🔑 Key Requirements: 5+ years building production web applications in any modern language (PHP, TypeScript/Node.js, Python or similar). Solid REST API design instincts: resources, idempotency, versioning, error contracts. Relational database fluency — schema design, query analysis, migrations. Disciplined testing — unit and integration; you know what to mock and what not to. Git fluency: branching, pull requests, rebases, conflict resolution. Experience using AI coding assistants and agent-based workflows in real engineering work. Strong communicative English — code comments, PR descriptions, OpenAPI text. ➕Nice to have: PHP 8.x with Symfony and Doctrine ORM — directly applicable to today's stack. Node.js / TypeScript with a mature backend framework (Nest, Fastify, Express + Zod, etc.) — directly applicable to the possible evolution path Multi-tenant SaaS architecture (row-level isolation, tenant-scoped queries). ● IPFS or other content-addressable storage concepts. JWT auth flows with refresh-token rotation. OWASP Top-10 awareness. 📜Our Promise (what you can expect from us): 20-25k PLN on B2B 100% remote work (but we have offices in Krakow and Warsaw and we’re happy to meet there from time to time 😉) 300 PLN to use on our benefits platform, Worksmile - gift cards, medical services, sports, etc. Our B2B contract contains provisions that allow you to obtain IP BOX support Integration events, education opportunities and much more… A unique opportunity to take your career to the next level - we’re looking for people who want to create an impact. You have ideas, we want to hear them! 📌Recruitment process: 30 minute screening call online with our recruiter 1h technical call with CTO 1h call with CEO Offer Questions, insights? Feel free to reach out to our recruiting team: ewa.szczodrak@thecodest.co In the meantime, feel free to visit our website where you can find key facts about us.

🏢 Summary: The role involves end-to-end development of custom Shopify themes and frontend solutions, delivering medium to high complexity features in eCommerce projects. The position requires strong expertise in Shopify best practices and modern frontend technologies, with ownership of the release process and technical quality. 🗂️ Requirements: 3–5 years of experience in eCommerce environments, Strong knowledge of Liquid, JavaScript, React, Tailwind CSS, GraphQL, REST, Git, Hands-on experience with Shopify (themes, APIs, apps, functions, extensions), Solid understanding of frontend and component-based architectures, Understanding of microservices architecture, Familiarity with SDLC and Agile methodologies, Experience with Jira, Confluence or similar tools, Understanding of user behavior and marketing principles in eCommerce 📃 Skills: Liquid, JavaScript, React, Tailwind, GraphQL, REST, Git, Shopify, APIs, Microservices, Agile, Jira, Confluence, eCommerce 🏢 Description: 🌍 Hello World! We are The Codest -  International Tech Software Company with tech hubs in Poland delivering global IT solutions and projects. Our core values lie in “Customers and People First” approach that prioritises the needs of our customers and a collaborative environment for our employees, enabling us to deliver exceptional products and services. Our expertise centers on web development, cloud engineering, DevOps and quality. After many years of developing our own product - Yieldbird, which was honored as a laureate of the prestigious Top25 Deloitte awards, we arrived at our mission: to help tech companies build impactful product and scale their IT teams through boosting IT delivery performance. Through our extensive experience with product development challenges, we have become experts in building digital products and scaling IT teams. But our journey does not end here - we want to continue our growth. If you’re goal-driven and looking for new opportunities, join our team! What awaits you is an enriching and collaborative environment that fosters your growth at every step. 💡 Project Description: As a Shopify Developer you will be responsible for delivering end-to-end technical execution of custom Shopify themes and frontend solutions. The ideal candidate brings several years of experience leading Shopify development projects, has a strong grasp of platform best practices, and is comfortable working with modern technologies. 📈 Your Responsibilities : Develop high-quality frontend solutions using Liquid, JavaScript, React, Tailwind, and GraphQL Bring strong experience with the Shopify platform and its best practices Work effectively both independently and within a team to maintain high standards Communicate clearly with clients, developers, and project stakeholders Pay close attention to detail, including edge cases and acceptance criteria Make informed decisions balancing code quality, timelines, and delivery Support and coordinate the release process to ensure smooth deployments Own and deliver medium to high complexity frontend features end-to-end 🔑 Key Requirements: Strong knowledge of Liquid, JavaScript, React, Tailwind CSS, GraphQL, REST, and Git Hands-on experience with Shopify development (themes, APIs, apps, functions, extensions) 3–5 years of experience in eCommerce environments Solid understanding of frontend, component-based architectures and microservices Familiarity with software development lifecycle and Agile methodologies Experience using Jira, Confluence, or similar ticketing tools Strong problem-solving skills and attention to detail Good understanding of user behavior and marketing principles in eCommerce ➕Nice to have: Ability to work independently and take ownership of tasks Confidence in making decisions with minimal supervision Experience handling complex, non-standard Shopify projects 📜Our Promise (what you can expect from us): 19-22k PLN on B2B 100% remote work 300 PLN to use on our benefits platform, Worksmile - gift cards, medical services, sports, etc. Our B2B contract contains provisions that allow you to obtain IP BOX support Integration events, education opportunities and much more… A unique opportunity to take your career to the next level - we’re looking for people who want to create an impact. You have ideas, we want to hear them! 📌Recruitment process: 30 minute screening call online with our recruiter 30 minute screen call with the team lead A technical task Offer Questions, insights? Feel free to reach out to our recruiting team: ewa.szczodrak@thecodest.co In the meantime, feel free to visit our website where you can find key facts about us.

🏢 Summary: Hybrid delivery leadership role focused on end-to-end implementation of AI-enabled cybersecurity solutions in an enterprise environment. The position drives Agile/Hybrid programs across cybersecurity, data, and engineering teams to deploy secure, compliant, and scalable AI capabilities. Responsibilities include governance, risk management, and operationalization of AI models in production. 🗂️ Requirements: Advanced English proficiency, Proven experience leading large-scale cybersecurity and AI delivery programs, Experience coordinating multiple teams in complex enterprise environments, Practical knowledge of AI/ML model deployment and lifecycle management, Experience with operational monitoring and model retraining processes, Experience in highly regulated environments with governance and audit compliance, Strong knowledge of cybersecurity operations and incident response, Understanding of detection engineering methodologies 📃 Skills: AI, ML, Cybersecurity, Agile, DevOps, GenAI, SOC, Governance, Risk, Compliance, Monitoring, IncidentResponse, DetectionEngineering, Data, Cloud 🏢 Description: 🌍 Hello World! We are The Codest -  International Tech Software Company with tech hubs in Poland delivering global IT solutions and projects. Our core values lie in “Customers and People First” approach that prioritises the needs of our customers and a collaborative environment for our employees, enabling us to deliver exceptional products and services. Our expertise centers on web development, cloud engineering, DevOps and quality. After many years of developing our own product - Yieldbird, which was honored as a laureate of the prestigious Top25 Deloitte awards, we arrived at our mission: to help tech companies build impactful product and scale their IT teams through boosting IT delivery performance. Through our extensive experience with product development challenges, we have become experts in building digital products and scaling IT teams. But our journey does not end here - we want to continue our growth. If you’re goal-driven and looking for new opportunities, join our team! What awaits you is an enriching and collaborative environment that fosters your growth at every step. 💡 Project Description: In this project, you will lead the end-to-end delivery of AI-enabled cybersecurity capabilities designed to reduce risk and strengthen detection, response, and operational resilience. The role involves close collaboration with cybersecurity, data, engineering, and risk/control stakeholders to drive initiatives from concept through production deployment while ensuring compliance, security, and measurable outcomes. Please note: this is a hybrid position, you will be expected to come into the office 6 days per month overall (the office is located in Kraków). 📈 Your Responsibilities : Lead end-to-end delivery of AI-driven cybersecurity initiatives across multiple workstreams, managing delivery plans, milestones, dependencies, and risks. Drive Agile/Hybrid delivery processes, translating cybersecurity priorities into actionable backlogs, release plans, and scalable delivery roadmaps. Support implementation of AI-enabled cybersecurity solutions in areas such as SOC operations, threat detection, vulnerability management, identity monitoring, and GenAI-powered analyst assistance. Collaborate with cybersecurity, engineering, platform, and data teams to ensure secure deployment, high data quality, and reliable operational performance of AI solutions. Ensure compliance with security, privacy, and responsible AI standards, including governance processes, documentation, validation, and audit readiness. Implement safeguards for GenAI solutions, including prompt controls, human oversight, logging, and data protection measures. Manage stakeholder communication, governance forums, delivery reporting, and coordination with third-party vendors where required. 🔑 Key Requirements: Advanced English in speaking and writing Proven success leading large-scale delivery programmes across cybersecurity, data, and AI domains, coordinating multiple teams within complex enterprise environments. Effective at building relationships with senior stakeholders and influencing decision-making across technology, security, and risk management functions. Practical understanding of AI/ML delivery frameworks, including model deployment, operational monitoring, performance degradation management, and retraining processes. Experience operating within highly regulated organisations, ensuring compliance with governance standards, audit expectations, and risk controls. Solid knowledge of cybersecurity operations, including security monitoring, incident response practices, and detection engineering methodologies. 📜Our Promise (what you can expect from us): 17-20k PLN on B2B 300 PLN to use on our benefits platform, Worksmile - gift cards, medical services, sports, etc. Our B2B contract contains provisions that allow you to obtain IP BOX support Integration events, education opportunities and much more… A unique opportunity to take your career to the next level - we’re looking for people who want to create an impact. You have ideas, we want to hear them! 📌Recruitment process: 30 minute screening call online with our recruiter 1 hour technical call with the client 30 minute call with the team leader Offer Questions, insights? Feel free to reach out to our recruiting team: ewa.szczodrak@thecodest.co In the meantime, feel free to visit our website where you can find key facts about us.

🏢 Summary: Senior QA Automation Engineer (.NET) role focused on designing and maintaining automated test frameworks within the .NET ecosystem, with strong emphasis on Selenium-based automation and comprehensive quality assurance processes. The position combines automation and manual testing, performance testing, and API/database validation in a fully remote environment. The role requires independent work, technical leadership in QA practices, and close collaboration with cross-functional teams. 🗂️ Requirements: Senior-level experience in QA automation, Strong experience with Selenium WebDriver and C# in .NET, Ability to design and maintain automation frameworks, Experience in manual testing (E2E, functional, exploratory, regression), Experience in creating Master Test Plans, Ability to perform load and performance testing, Experience in API testing, Experience in database testing, Ability to write scripts for test data creation, Experience in tracking automation metrics, Experience in full bug lifecycle management, Excellent English communication skills 📃 Skills: Selenium, C#, .NET, Blazemeter, API, SQL, WebDriver 🏢 Description: 🌍 Hello World! We are The Codest -  International Tech Software Company with tech hubs in Poland delivering global IT solutions and projects. Our core values lie in “Customers and People First” approach that prioritises the needs of our customers and a collaborative environment for our employees, enabling us to deliver exceptional products and services. Our expertise centers on web development, cloud engineering, DevOps and quality.  After many years of developing our own product - Yieldbird, which was honored as a laureate of the prestigious Top25 Deloitte awards, we arrived at our mission: to help tech companies build impactful product and scale their IT teams through boosting IT delivery performance. Through our extensive experience with product development challenges, we have become experts in building digital products and scaling IT teams. But our journey does not end here - we want to continue our growth. If you’re goal-driven and looking for new opportunities, join our team! What awaits you is an enriching and collaborative environment that fosters your growth at every step. 💡Project Description: We’re seeking a Senior QA Automation Engineer (.NET). Job requirements 📈 Your Responsibilities: Design, develop, and maintain robust automated test frameworks using Selenium WebDriver and C# within the .NET ecosystem. Create and execute comprehensive Master Test Plans, covering E2E, functional, exploratory, and regression testing scenarios. Perform manual testing as the foundation for building high-quality automated test cases. Conduct load and performance testing using Blazemeter to ensure application scalability and reliability. Carry out API and database testing, and write scripts for test data creation and management. Track and report automation metrics, including automated vs. manual test coverage, to drive continuous improvement. Manage the full bug life cycle — from identification and detailed reporting through to resolution verification. Maintain thorough test documentation, including permission mapping, test results, and quality reports. Clearly communicate technical issues and quality risks to both internal development teams and external clients. Collaborate cross-functionally with developers, product owners, and stakeholders to align on quality standards. Work independently in a dynamic, fast-paced environment, proactively identifying and resolving quality risks. Ensure high levels of self-organization and attention to detail across all QA activities. 🔑 Key Requirements: Senior-level Experience: A proven track record in a Senior QA role, with a focus on building and maintaining robust automation frameworks. Automation Skills (Selenium & .NET): Strong hands-on experience in developing automated web tests using Selenium WebDriver within the .NET ecosystem (C#). Manual Testing Proficiency: While the focus is on automation, you should be comfortable with and skilled in manual testing. This includes designing Master Test Plans and executing E2E, functional, exploratory, and regression tests. Excellent interpersonal and communication skills - you should be able to clearly articulate technical issues and quality risks to both internal teams and the client. Performance Testing: Ability to conduct load and performance tests using Blazemeter. Technical Literacy: Proficiency in API and database testing, plus the ability to write scripts for test data creation. Excellent command of English (written and verbal) is a strict requirement. Quality Mindset: An understanding that effective automation is built on the foundation of great manual test cases. Strong Documentation Habits: A knack for detailed reporting, permission mapping, and clear bug life cycle management. Data-Driven Mindset: Experience in tracking automation metrics (automated vs. manual coverage). Proactive Attitude: A "problem-solver" approach and the ability to work independently in a dynamic environment. Organizational Skills: High level of self-management and attention to detail. 📜 Our Promise (what you can expect from us): 22-26k PLN monthly on B2B contract 100% remote work (but we have offices in Krakow and Warsaw and we’re happy to meet there from time to time 😉) 300 PLN to use on our benefits platform, Worksmile - gift cards, medical services, sports, etc. Our B2B contract contains provisions that allow you to obtain IP BOX support Integration events, education opportunities and much more… A unique opportunity to take your career to the next level - we’re looking for people who want to create an impact. You have ideas, we want to hear them! 📌 Recruitment process: 30 minute screening call online with our recruiter 1h technical call with our tester 30 minute conversation with the team leader on client side 30 minute English language check Final 1h technical call Offer Questions, insights? Feel free to reach out to our recruiting team: justyna.pazdalska@thecodest.co In the meantime, feel free to visit our website where you can find key facts about us.