Senior Android Developer

🏢 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: 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: 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: 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: Mid-Level Kotlin Android Developer role focused on building secure, scalable Android applications using modern architectures and tools in a hybrid Krakow-based model. The position involves developing Kotlin applications with Jetpack Compose, integrating network services, and implementing CI/CD pipelines while ensuring high mobile security standards. You will collaborate in distributed teams to deliver robust digital mobile solutions. 🗂️ Requirements: Minimum 4 years of Android development experience in Kotlin, Strong knowledge of Android frameworks and libraries: Retrofit, Coroutines, Room, Hands-on experience with Android Lifecycle, ViewModel, LiveData, Experience with MVP, MVVM, Clean Architecture design patterns, Practical experience with CI/CD pipelines, Knowledge of secure data storage, SSL pinning, authentication mechanisms, Understanding of modularization and dependency management, Ability to troubleshoot production issues, Fluent English (spoken and written), Legal right to work in the European Union 📃 Skills: Kotlin, Android, Jetpack, Compose, Retrofit, Coroutines, Room, Lifecycle, ViewModel, LiveData, MVP, MVVM, CleanArchitecture, Koin, Dagger, Hilt, CI/CD, SSL, Flow 🏢 Description: Empower Mobile Innovation — Drive Secure and Seamless Digital Experiences! Krakow-based opportunity with hybrid work model. As a Mid-Level Kotlin Android Developer, you will be working on developing cutting-edge Android applications that enhance customer engagement and strengthen security measures. The role focuses on delivering robust, scalable mobile solutions in a rapidly evolving digital landscape. Quick Facts: - Hybrid work model based in Krakow - Fluent English required (spoken and written) - Only candidates with an existing legal right to work in the European Union will be considered Responsibilities: - Create and develop Android applications in Kotlin, using Jetpack Compose for modern UI design - Design and implement solutions following MVP and MVVM design patterns, ensuring modularity and maintainability - Integrate applications with network services using Retrofit, ensuring secure and reliable communication - Manage dependencies using Koin, Dagger, or Hilt - Build and maintain CI/CD pipelines to streamline deployment cycles - Apply best practices in mobile security, including encrypted data storage and secure network protocols - Diagnose and resolve application issues, including production incidents - Collaborate in distributed teams, participating in code reviews, retrospectives, and knowledge sharing Requirements: - Minimum of 4 years of experience developing Android applications in Kotlin - Strong proficiency with Android frameworks and libraries: Retrofit, Coroutines, Room - Hands-on experience with Android Lifecycle, ViewModel, and LiveData - Solid understanding of modularization principles and dependency management - Practical experience establishing and maintaining CI/CD pipelines - Familiarity with MVP, MVVM, and Clean Architecture - Knowledge of mobile security best practices: secure data storage, SSL pinning, authentication mechanisms - Ability to troubleshoot and resolve complex technical issues, including in production environments - Willingness to work in distributed teams and actively participate in code reviews Nice to Have: - Experience with Flow for asynchronous programming - Certifications related to Android development or cybersecurity

🏢 Summary: Hybrid Senior Python Developer role focused on building and deploying AI-powered applications using Large Language Models and RAG in a cloud-native environment. The position involves designing scalable Python solutions, integrating GenAI systems, and collaborating within DevOps-driven teams on GCP and Azure. Work includes cross-language cooperation with Java and contributing to CI/CD pipelines. 🗂️ Requirements: Senior-level experience with Python, Practical knowledge of AI/ML concepts (LLM, RAG, Generative AI), Experience with GCP and/or Azure, Ability to read and understand Java code, Understanding of DevOps practices and CI/CD, Experience with cloud infrastructure, Advanced English proficiency 📃 Skills: Python, AI, ML, LLM, RAG, GenAI, 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: Project starts from July. 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).fice 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.

🏢 Summary: Senior React Native Developer role focused on delivering end-to-end mobile applications using React Native and Expo, with responsibility for architecture, API integration, and technical leadership. The position involves driving technical decisions, ensuring code quality, and collaborating with clients and teams to build scalable enterprise mobile solutions. 🗂️ Requirements: Advanced English proficiency, Proven experience developing mobile applications with React Native, Practical experience with Expo, Experience integrating REST or GraphQL APIs, Experience in technical leadership or mentoring, Experience with debugging and monitoring tools, Understanding of scalability and code quality principles, Ability to translate business requirements into technical solutions 📃 Skills: React, ReactNative, Expo, REST, GraphQL, CI/CD, Monitoring, Logging, APIs, Mobile 🏢 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 seasoned Senior React Native Developer with strong experience in React Native and Expo, who is ready to step into a technical leadership role on mobile projects. In this position, you’ll be responsible for delivering end-to-end mobile applications, shaping architectural decisions, integrating with existing APIs, and supporting the team in building high-quality solutions. 📈 Your Responsibilities : Build and mantain mobile applications using React Native and Expo Integrate mobile frontends with existing APIs and backend services Partner with internal teams and clients to ensure solutions align with business objectives Drive technical planning, analysis, and execution across development work Support the team through code reviews and knowledge sharing, raising engineering quality Collaborate on delivering scalable, maintainable, and observable enterprise solutions Serve as the primary contact for technical topics within the project 🔑 Key Requirements: Advanced English in speaking and writing (you will be working in an international team) Solid track record of developing mobile apps with React Native Practical experience working with Expo Strong background in integrating with REST and/or GraphQL APIs Experience guiding others or contributing in a mentoring / technical leadership capacity Familiarity with debugging and monitoring tools Good understanding of scalability, maintainability, and overall code quality Ability to work with clients and translate business requirements into technical solutions ➕ Nice to have: Background in building or contributing to enterprise-scale applications Familiarity with setting up or working with mobile CI/CD processes Experience using observability solutions, including logging and monitoring tools 📜 Our Promise (what you can expect from us): 17-22k 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 developer 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: ewa.szczodrak@thecodest.co In the meantime, feel free to visit our website where you can find key facts about us.

🏢 Summary: Role for an experienced Android Developer to build and scale high-quality native mobile applications across European markets, focusing on performance, architecture, and user experience. The position involves developing and optimizing Android apps using modern frameworks, integrating backend services, and contributing to architectural decisions in an Agile environment. 🗂️ Requirements: 5+ years of Android development experience, Expert knowledge of Android SDK and Android OS versions, Strong knowledge of Android UI design principles and guidelines, Experience with MVVM and Clean Architecture, Experience with Jetpack libraries and Architecture Components, Experience with Kotlin and Java, Experience with Jetpack Compose, Experience with Coroutines, Experience with Firebase integration, Experience with REST API integration, Experience with Git and CI/CD pipelines, Experience working in Agile environment, English proficiency at minimum B2 level, Ability to use AI development tools and evaluate their output critically 📃 Skills: Android, Kotlin, Java, AndroidSDK, MVVM, CleanArchitecture, Jetpack, Compose, Coroutines, Firebase, REST, Git, CI/CD, JIRA, Confluence, Copilot, ChatGPT, Claude 🏢 Description: Job Description At InPost, we're passionate about building software that helps our customers send and receive their goods. Our Consumer-Facing teams build and maintain web applications and enabling platforms, which provide features such as marketing communication, loyalty programs, and payments. We have built one of the most well-recognized and appreciated mobile applications in Poland's Logistics sector, with 11+ million users , and we are not stopping there. Our next step is conquering the international European market and scaling our Mobile platform and applications across Europe . We are looking for an experienced Android Developer to join us in that journey - to heavily influence our platform build, improve processes, and help us deliver the best native app experience in the market. Responsibilities: Develop and maintain high-quality Android applications using Kotlin and Java, ensuring performance, stability, and great user experience. Build scalable, maintainable solutions using MVVM, Clean Architecture, Jetpack Compose, and Coroutines . Integrate Android apps with backend APIs, Firebase , and other third-party services. Refactor and optimize existing code to improve quality, performance, and long-term maintainability. Actively participate in code reviews , technical discussions, and architectural decisions. Collaborate with cross-functional teams to translate business requirements into technical solutions . Work in an Agile environment , using tools such as Git, CI/CD pipelines, and issue-tracking systems.CI/CD pipelines, and issue-tr Create and maintain clear technical documentation . Use AI tools to improve development efficiency while applying critical judgment and best practices. Qualifications 5+ years of experience in Android development. Expert knowledge of Android SDK and different versions of Android, along with device configurations. Strong knowledge of Google's Android UI design principles, patterns, best practices, and interface guidelines. Experience with Android Architecture components, Jetpack libraries , MVVM and Clean Architecture . Experience with optimizing mobile apps in Java and Kotlin. Experience with Compose and Coroutines . Experience with Firebase configuration. Experience working with API interfaces to integrate data and functionality in mobile applications. Ability to solve problems and propose own solutions to solve them. Ability to understand business requirements and translate them into technical requirements. Attention to detail and a strong focus on solution delivery . Professional and proactive approach to tasks assigned Knowledge of traditional software development processes and tools, including Git, JIRA, Confluence, Code Reviews, and CI/CD. English language skills at a professional level (minimum B2). Proficiency in leveraging AI tools and large language models (e.g., GitHub Copilot, ChatGPT, Claude) to enhance productivity, accelerate development, and solve complex problems. Ability to critically evaluate AI-generated outputs and apply them responsibly within professional workflows. What do we offer? Remote work opportunity across Poland. Access to e-learning platforms- eTutor , Udemy , GoodHabitz , and more. Two development paths : becoming a Tech Expert or an Engineering Manager. A wide range of benefits, including the MultiSport+ card, private healthcare , and group insurance , is available on the Worksmile platform. External and internal growth opportunities - conferences , trainings , workshops . Chances to broaden your skill set and acquire new competencies through daily work, challenging projects, and training activities.

🏢 Summary: Mid-Level Kotlin Android Developer role focused on building secure, scalable mobile applications using modern Android technologies and architecture patterns. The position involves developing Kotlin-based apps with Jetpack Compose, integrating network services, and maintaining CI/CD pipelines in a hybrid Kraków-based setup. The role emphasizes high-quality, user-centric solutions within distributed teams. 🗂️ Requirements: Minimum 4 years of Android development experience with Kotlin, Strong knowledge of Android framework, Experience with Retrofit, Coroutines, and Room, Experience with MVP, MVVM, and Clean Architecture, Practical experience with CI/CD processes, Knowledge of mobile security practices including SSL pinning and encrypted data storage, Ability to troubleshoot and resolve technical issues, Fluent English (spoken and written), Legal right to work in the European Union 📃 Skills: Kotlin, Android, JetpackCompose, Retrofit, Coroutines, Room, ViewModel, LiveData, Koin, Dagger, Hilt, MVP, MVVM, CleanArchitecture, CICD, SSL, Encryption, Authentication, Flow 🏢 Description: Ignite the future of mobile innovation — shape seamless user experiences with Kotlin! Kraków-based opportunity with hybrid work model As a Mid-Level Kotlin Android Developer , you will be working for our client, a leader in digital transformation within the mobile platform industry. You will contribute to the development of cutting-edge mobile applications that enhance customer engagement and drive innovation in a data-driven world. Join a team committed to building secure, scalable, and user-centric digital solutions for today’s dynamic market. Your main responsibilities: Develop and enhance mobile applications in Kotlin, utilizing Jetpack Compose for modern UI design. Design and implement solutions based on MVP and MVVM architecture patterns. Integrate apps with network services using Retrofit and manage application state with ViewModel and LiveData. Manage dependencies effectively with tools such as Koin, Dagger, or Hilt. Create and maintain robust CI/CD pipelines to streamline deployment processes. Ensure application security by implementing secure data storage and network communication protocols. Participate in code reviews, retrospectives, and collaboration within distributed teams. Troubleshoot and resolve production incidents, ensuring high-quality user experiences. You're ideal for this role if you have: Minimum 4 years of experience in Android application development with Kotlin. Very good knowledge of Android framework and libraries such as Retrofit, Coroutines, Room. Strong understanding of application lifecycle, modularity principles, and dependency management. Practical experience with CI/CD processes. Familiarity with design patterns MVP, MVVM, and Clean Architecture. Knowledge of mobile security best practices including SSL pinning, encrypted data storage, and user authentication. Ability to diagnose and troubleshoot technical issues efficiently. Excellent communication skills in English (fluent level). Willingness to work in distributed teams and participate actively in knowledge sharing. It is a strong plus if you have: Certifications related to Android development or security. Experience with asynchronous programming models like Flow. Language required for the role: Excellent command of English, fluent in both spoken and written communication. Eligibility to work in this role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.