Regular Java Developer

🏢 Summary: The offer is for an experienced Android Developer to build and enhance mobile applications within a Mobile Platform team, focusing on Kotlin and modern Android architecture. The role involves developing secure, scalable apps, integrating network services, and maintaining CI/CD pipelines in a cross-functional, innovation-driven environment. This hybrid position requires regular on-site presence in Kraków. 🗂️ Requirements: Minimum 3 years of Android development experience, Strong proficiency in Kotlin, Very good knowledge of Android framework, Experience with Retrofit, Coroutines, Room, Experience with MVP, MVVM, Clean Architecture, Ability to manage app state with ViewModel and LiveData, Knowledge of dependency injection and modularity, Experience with CI/CD pipelines, Knowledge of mobile application security practices, Experience with secure data storage and SSL Pinning, Advanced English (spoken and written) 📃 Skills: Kotlin, Android, Jetpack, Compose, Retrofit, Coroutines, Room, ViewModel, LiveData, MVP, MVVM, CleanArchitecture, Koin, Dagger, Hilt, CI/CD, SSL, HTTPS, Keystore, EncryptedSharedPreferences, Flow 🏢 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 are looking for an experienced Android Developer who will be working in the Mobile Platform team including developing new mobile apps and online experiences, using digital messaging to enhance our customer relationships, building and improving the underlying technology and security platforms and innovating our propositions to compete effectively in a mobile, data-driven world. You will be part of a cross-functional team growing our digital capabilities, driving innovation, delivering products in ever-shortening cycles, and helping to drive the continuous improvement of our processes, tooling, and engineering practices. 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 : Creating and developing mobile applications in Kotlin using Jetpack Compose. Designing and implementing solutions based on design patterns MVP, MVVM. Integrating applications with network services using Retrofit. Managing dependencies using tools like Koin, Dagger, Hilt. Creating and maintaining CI/CD pipelines. 🔑 Key Requirements: Advanced English in speaking and writing Minimum 3 years of experience in developing Android applications in Kotlin. Very good knowledge of the Android framework and libraries such as Retrofit, Coroutines, Room. Ability to work with Android Lifecycle and manage application state using ViewModel and LiveData. Knowledge of application modularity principles and dependency management. Practical experience in creating and maintaining CI/CD processes. Familiarity with design patterns MVP, MVVM, and Clean Architecture. Knowledge of mobile application security: Implementation of secure data storage (e.g., EncryptedSharedPreferences, Keystore). Secure network communication (SSL Pinning, HTTPS). Protection against reverse engineering and other threats. Implementation of user authorization and authentication. Ability to diagnose and solve problems, including production incidents. Willingness to work in distributed teams and participate in code reviews and retrospectives. Knowledge of best practices related to asynchronous programming (Coroutines, Flow). 6x a month working from the office in Krakow6x a month working from the office in Krakow 📜 Our Promise (what you can expect from us): 18-24k PLN on B2B Hybrid work (6x per month from the office in Kraków) 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 - Justyna 1 hour screening technical interview 1 hour call with the client 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.

🏢 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: 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: 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: 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: 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: 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: 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: Senior Python Developer role focused on building and deploying AI-powered applications using Large Language Models and Retrieval-Augmented Generation in a cloud-native environment. The position involves designing scalable Python solutions, integrating LLM/RAG systems, and supporting DevOps practices on GCP and Azure. Hybrid work model with regular on-site presence in Kraków. 🗂️ Requirements: Senior-level experience with Python, Practical knowledge of AI/ML concepts, Experience with LLMs, RAG, Generative AI, Experience with GCP or Azure, Ability to read and understand Java code, Understanding of DevOps practices, Experience with cloud infrastructure, Advanced English proficiency 📃 Skills: Python, AI, ML, LLM, RAG, GenerativeAI, GCP, Azure, Java, DevOps, CI/CD, 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: We are looking for an experienced Python Developer to join a forward-thinking team working on cutting-edge AI-powered solutions. If you're passionate about building intelligent systems and thrive in a cloud-native environment, we'd love to hear from you! You'll be working on projects involving Large Language Models, Retrieval-Augmented Generation (RAG), and Generative AI - designing, developing, and deploying robust Python-based applications in a modern cloud ecosystem. 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 : Designing and developing scalable Python applications with a focus on AI/GenAI solutions Building and integrating LLM and RAG-based systems Collaborating with cross-functional teams in a cloud-native (GCP & Azure) environment Reading and reviewing Java code as part of cross-language collaboration Supporting DevOps practices and CI/CD pipelines in cloud environments 🔑 Key Requirements: Advanced English in speaking and writing Strong hands-on experience with Python (senior level) Practical knowledge of AI/ML concepts, including LLMs, RAG, and Generative AI Experience with GCP and/or Azure cloud platforms Basic Java skills - ability to read and understand Java code (no advanced development required) Solid understanding of DevOps practices and cloud infrastructure Good communication skills and ability to work in an agile team 📜 Our Promise (what you can expect from us): 18-25k PLN on B2B Hybrid work (6x per month from the office in Kraków) 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 - Justyna 1 hour screening technical interview 1 hour call with the client 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.

🏢 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.