National Account Manager (Grocery)

🏢 Summary: Full Stack Developer role focused on developing and maintaining a proprietary point-of-sale (POS) platform used across European retail stores. The position involves building backend and frontend POS functionalities, custom extensions, and integrations within a Spring-based environment and embedded browser framework. You will work on payment flows, checkout processes, integrations, and localization in an agile, multinational team. 🗂️ Requirements: 3+ years Java development (Java 11+), Experience with Spring Framework (XML/Java config, annotations, custom extensions), Experience with enterprise frontend frameworks, Understanding of POS systems and payment processing, Experience with REST API integration, Proficiency with Eclipse IDE 2020, Ability to maintain and extend DSL-generated code, Experience with XML-based configuration and environment deployments, Experience with relational databases and SQL, Knowledge of Git and CI/CD basics, English and Polish B2/C1 📃 Skills: Java, Spring, JavaScript, REST, SQL, Git, Eclipse, XML, JxBrowser, Chromium, React, Angular, Vue, SAPUI5, JUnit, Mockito, Cucumber 🏢 Description: Circle K Business Centre is a shared service center which supports Circle K Europe operations through a wide range of services within Finance & Control, Information Technologies, Human Resources, Transport Fuel and Customer Service. Circle K is part of the Canadian company Alimentation Couche Tard Inc. (Couche-Tard), one of the world's largest joint-stock convenience retail companies, listed on the Toronto Stock Exchange (TSE). It has operations in North America, Europe, Asia and the Middle East. It has approximately 12,300 sites across its network in North America (U.S. and Canada), Europe (Norway, Sweden, Denmark, Ireland, Poland, the Baltics), Asia and the Middle East. We are a family of more than 100,000 merchants making it easy for our customers around the world. In the last few years, our continuously growing development teams (currently over 200 skilled IT professionals) have successfully implemented and deployed various software solutions to Circle K customers across Europe and North America. Among the solutions you will find web applications, native mobile applications and technical components. What you will be working on We are looking for a Full Stack Developer to join Retail and Digital Channels Development Section at Circle K Global Development, responsible for developing, extending, and maintaining the software point-of-sale platform (POS System) deployed across Circle K's European store network. As a Full Stack Developer, you will work within the POS Core team to: Design and implement POS functionality using proprietary development stack (Spring-based backend, selected JavaScript framework frontend and custom DSL) Build and maintain custom extensions, integrations, and configurations within the retail platform without modifying the core POS where possible Develop custom frontend applications integrated into POS via the App Enablement Framework (JxBrowser/Chromium) Implement and configure business processes: checkout flows, payment handling, barcode processing rules, and loyalty engine integrations Work with Data Containers, Master Data distribution, and Service API layer for POS integrations Contribute to localization and fiscalisation of POS solutions for different European markets Collaborate with Technical Product Owner, Solution Architects, QA Engineers and DevOps in an agile, multinational environment Ensure configuration changes follow proper lifecycle management: versioning, environment promotion (DEV → TEST → PROD) You will work with us using the specialized proprietary environment, collaborating with Technical Product Owner, numerous skilled Developers, Testers, DevOps and Architects as new colleagues, working in an agile, multinational environment. Requirements Must have: 3+ years' experience in Java development (Java 11+), including Spring Framework (XML/Java config, annotations, custom extensions) Hands-on experience with enterprise frontend frameworks Solid understanding of POS systems, retail checkout flows, and payment processing concepts Experience with REST API integration and microservice communication patterns Proficiency with Eclipse IDE (2020 or compatible) — required by the POS development toolchain Ability to read, maintain, and extend code generated by proprietary DSLs Strong configuration management skills: XML-based Spring config, property files, and environment-specific deployments Experience working with relational databases (SQL, data modelling) Practical knowledge of Git, CI/CD basics and version control workflows Fluent English and Polish — level B2/C1 minimum Nice to have: Prior experience with POS software OmniPOS / CLOUD4RETAIL platform Knowledge of fiscalisation requirements in European markets (Poland, Baltic states, Nordics) Experience with JxBrowser / Chromium-based embedded browser engines Frontend development skills: React, Angular, Vue.js, SAP UI5 or any modern JavaScript framework (for Custom App development via App Enablement Framework) Familiarity with SAP Storemanager, POS systems, or similar retail configuration tooling Experience in loyalty systems integration, mobile payment flows, or self-checkout solutions Knowledge of TDD / BDD approaches (JUnit, Mockito, Cucumber) Understanding of edge computing architectures (central ↔ edge ↔ checkout) Technology Stack Working as a Developer at Circle K, you will operate within the following technology environment: Backend: Spring Framework (legacy version with custom extensions, XML/Java-based configuration, no Spring Boot auto-configuration) Code Generation: Proprietary DSL — a custom Domain-Specific Language for generating Java classes, integral to the build process Frontend: selected JavaScript framework (Employee Hub, Launchpad) Custom App Integration: JxBrowser engine (Chromium 139.x) with JavaScript API bridge for React/Angular/Vue.js custom apps IDE: Eclipse 2020 (required — project-specific plugins are incompatible with newer versions) POS Config: Storemanager, Menu Editor, Data Containers, Barcode Processor rules Integration: Service API, REST interfaces, external loyalty/payment system connectors Version Control: Git What do we offer? Annual bonus Private medical care Multisport Possibility for author's tax deduction English lessons subsidized by the company Group insurance Attractive discounts for products and services at our stations Employee stock purchase plan ICAS Modern and convenient office that you can virtually visit here - https://goo.gl/maps/CLteHfYcdYMbdESq6 Trainings & possibility to develop skills in a wide international environment When working with us you can depend upon it that you will not be judged on the grounds of race, national origin, gender, sexual orientation, disability, age, or other legally protected status. Oppositely – we believe that our diverse and inclusive culture helps us create an amazing atmosphere where everybody feels welcome. Check who we are here: https://youtu.be/td-QGnNnvW0 Want to know even more about us? Take a look at our career page: https://workwithus.circlek.com/global/en/businesscentrewarsaw Interested? We encourage you to apply. We know great companies are built from within, by great people like you. Come grow with us! We´re looking forward to your application.

🏢 Summary: Senior Java Backend Engineer role focused on designing and developing scalable microservices and REST APIs within a large-scale loyalty platform used across multiple European markets. The position involves building highly available backend services, contributing to architecture decisions, and ensuring high code quality in a cloud-based environment. The role also includes collaboration in Agile teams and technical mentoring of other developers. 🗂️ Requirements: Minimum 5 years commercial experience in Java backend development, Strong knowledge of Java 17+, Strong experience with Spring ecosystem (Spring Boot, Spring Data, Security, Web/WebFlux, Integration), Experience designing and implementing RESTful APIs, Hands-on experience with microservices architecture, Experience with PostgreSQL, Experience with NoSQL databases (CosmosDB), Experience with asynchronous communication patterns (queues/topics), Experience with CI/CD pipelines, Experience with Docker and Kubernetes, Strong knowledge of Gradle 8+, Experience working in Microsoft Azure cloud, Knowledge of clean code principles and design patterns, Experience working in Agile (Scrum), Fluent English (B2/C1) 📃 Skills: Java, Spring, SpringBoot, SpringData, SpringSecurity, WebFlux, REST, Microservices, PostgreSQL, NoSQL, CosmosDB, Azure, CI/CD, GitHubActions, AzurePipelines, Jenkins, Docker, Kubernetes, Gradle, Scrum 🏢 Description: Circle K Business Centre Warsaw is a shared service center supporting Circle K Europe across IT, Finance, Human Resources, Customer Service and other business areas. Circle K is part of Alimentation Couche-Tard Inc., one of the world’s largest convenience retail companies, operating globally across North America, Europe, Asia and the Middle East, with over 12,300 locations worldwide. Our continuously growing development organization (300+ IT professionals) delivers large‑scale software solutions used daily by millions of customers across Europe and North America. About the Team Loyalty Crafters is a backend engineering team responsible for key components of Circle K’s loyalty platform, including EXTRA 2.0. The team develops scalable backend services powering loyalty programs, personalized offers, campaigns, and rewards across multiple European markets. Key Responsibilities Design and develop backend services within Circle K’s loyalty ecosystem Build and maintain scalable, highly available microservices Develop and evolve REST APIs used by mobile and web applications Contribute to architectural and technical decisions Ensure high code quality through reviews and best engineering practices Mentor and support less experienced developers Collaborate with Product Owners, QA Engineers, Architects and other teams Required Skills and Experience At least 5 years of commercial experience in Java backend development Strong knowledge of Java (17+) and Spring ecosystem (Spring Boot, Spring Data, Security, Web/WebFlux, Integration) Experience in designing and implementing RESTful APIs Hands-on experience with microservices architecture Experience with relational databases, especially PostgreSQL Experience with non-relational/NoSql databases like Azure CosmosDB Experience with asynchronous communication patterns (queues/topics), Experience with CI/CD pipelines like GitHub Actions, Azure Pipelines or Jenkins Experience with Docker and Kubernetes Strong knowledge of Gradle 8+ Experience working in cloud environments (Microsoft Azure) Knowledge of clean code principles and software design patterns Experience working in Agile environments (Scrum) Fluent English (B2/C1) Nice to Have Experience with event-driven architectures (e.g. Kafka) Understanding of how AI‑based tools and solutions can support software development and product features Knowledge of Domain-Driven Design (DDD) Knowledge of Test-Driven-Develop (TDD) Experience with observability and monitoring tools Experience in loyalty, e-commerce or large-scale consumer platforms Technical leadership or mentoring experience What do we offer: Contract of employment Annual bonus Private medical care Cafeteria Platform/Multisport English lessons subsidized by the company Group insurance Attractive discounts for products and services at our stations Employee stock purchase plan Employee Assistance Program (Lyra) Modern and convenient office that you can virtually visit here - https://goo.gl/maps/CLteHfYcdYMbdESq6 Trainings & possibility to develop skills in a wide international environment When working with us you can depend upon it that you will not be judged on the grounds of race, national origin, gender, sexual orientation, disability, age, or other legally protected status. Oppositely – we believe that our diverse and inclusive culture helps us create an amazing atmosphere where everybody feels welcome. Check who we are here: https://youtu.be/td-QGnNnvW0 Want to know even more about us? Take a look at our career page: https://workwithus.circlek.com/global/en/businesscentrewarsaw Interested? We encourage you to apply. We know great companies are built from within, by great people like you. Come grow with us!We´re looking forward to your application. We hereby inform that in the company Circle K Business Centre Poland sp. z o.o. with registered office in Warsaw an Internal Notification and Follow-up Actions Procedures applies. The document describes rules for reporting violations of law by whistleblowers. Full content of the above-mentioned Procedure is available here: https://www.circlek.pl/o-nas/procedury-zgloszen

🏢 Summary: Full-time Software Engineer role focused on building secure, scalable backend systems and APIs on AWS using TypeScript. The position involves end-to-end ownership of automated systems that detect misuse and enforce platform policies, working across the full development lifecycle. Ideal for engineers passionate about backend stability, cloud architecture, and high-quality code. 🗂️ Requirements: 3+ years of professional backend development experience, Strong proficiency in JavaScript, TypeScript, and Node.js, Experience building and consuming RESTful or GraphQL APIs, Experience with core AWS services (Lambda, SQS, SNS, API Gateway, S3), Experience with Docker containerization, Experience with NoSQL or relational databases, Understanding of web security principles and best practices, Upper-intermediate or higher English level 📃 Skills: JavaScript, TypeScript, Node.js, AWS, Lambda, SQS, SNS, APIGateway, S3, REST, GraphQL, Docker, MongoDB, DynamoDB, PostgreSQL, Security, CI/CD, Jenkins, GitLab, GitHubActions, React, CloudWatch, Datadog, .NET, Python, GCP, BigQuery 🏢 Description: Salary range: B2B - 30 E/h + VAT 💰 Ciklum is looking for a Software Engineer to join our team full-time in Poland. We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live. About the role: As a Software Engineer, you will be part of a cross-functional team with full ownership of the product and codebase. You will join a team specifically focused on businesses, building automated systems that detect misuse and enforce platform policies. You will participate in all stages of the development lifecycle: from ideation and design to implementation, deployment, and maintenance. This role is ideal for an engineer with a strong passion for backend stability and scalability who enjoys building robust cloud architectures. Responsibilities: Develop and maintain secure, scalable APIs and services on AWS using TypeScript Write clean, efficient, and testable code for both backend and frontend applications Collaborate closely with senior engineers, product managers, and designers to translate requirements into technical solutions Implement security best practices in your code to protect user data and ensure platform integrity Contribute to the entire development lifecycle, from planning and implementation to deployment and maintenance Troubleshoot, debug, and upgrade existing software to enhance functionality and performance Participate actively in code reviews, providing and receiving constructive feedback to maintain a high-quality codebase Requirements: 3+ years of professional experience in backend development Strong proficiency with JavaScript, TypeScript and Node.js Experience building and consuming RESTful or GraphQL APIs Experience with core AWS services (e.g., Lambda, SQS, SNS, API Gateway, S3) Familiarity with containerization using Docker Experience with NoSQL (e.g., MongoDB, DynamoDB) and/or relational (e.g., PostgreSQL) databases A good understanding of web security principles and best practices Strong problem-solving skills and a passion for writing quality code Upper-intermediate or higher level of spoken and written English Desirable: Hands-on expertise with React Familiarity with CI/CD practices and tools (e.g., Jenkins, GitLab CI, GitHub Actions) Experience with monitoring and logging tools (e.g., CloudWatch, Datadog) Working experience with .Net or Python is a plus Experience with GCP and services like BigQuery Personal skills: Accountability: You take ownership and follow through on your responsibilities Drive: You're proactive and results-oriented, always seeking better ways to solve problems Self-development: You stay curious, seek feedback, and aim for continuous improvement Effective communication: You communicate your ideas clearly and collaborate effectively in a team Mentoring: You're open to helping less experienced team members and sharing knowledge What`s in it for you? Strong community: Work alongside top professionals in a friendly, open-door environment Growth focus: Take on large-scale projects with a global impact and expand your expertise Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies Flexibility: Enjoy flexibility – full remote working possibilities Care: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations About us: At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress. With delivery centers in Wrocław and Gdańsk, our 300+ professionals in Poland drive forward-thinking solutions for global clients. Join a community where collaboration sparks innovation—and your impact reaches millions. Want to learn more about us? Follow us on Instagram , Facebook , LinkedIn . Explore, empower, engineer with Ciklum! Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.

🏢 Summary: Full-time Senior JavaScript Engineer role focused on building and evolving a scalable Design System for a global consumer platform. The position involves owning complex frontend features, creating reusable UI components, and ensuring accessibility and high-quality architecture. You will work cross-functionally with UX and product teams to deliver robust, documented, and versioned frontend solutions. 🗂️ Requirements: 5+ years frontend web development experience, Advanced proficiency in React, Advanced proficiency in TypeScript, Advanced proficiency in CSS, Experience building scalable libraries or modular UI components, Experience with Design Systems, Knowledge of WCAG 2.1/2.2 accessibility standards, Experience with versioned code libraries and release management, Upper-intermediate English proficiency 📃 Skills: JavaScript, React, TypeScript, CSS, Next.js, SASS, Playwright, Node.js, MongoDB, AWS, CI/CD, WCAG, Figma 🏢 Description: Salary range: B2B - 40-43 E/h + VAT 💰 Ciklum is looking for a Senior JavaScript Engineer to join our team full-time in Poland. We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live. About the role: As a Senior JavaScript Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. You will join a high-impact Design Systems team alongside other Senior Engineers to own high-impact workstreams and cross-functional partnerships. Our goal is to provide a seamless experience for millions of users on a global consumer review platform through robust, documented, and accessible UI patterns. You will operate with high autonomy, turning initial product needs into reusable components that enable product teams to move faster and more consistently. Responsibilities: Feature Ownership: Take end-to-end ownership of complex system features such as Data Visualization suites, theme engines, or complex search/filtering patterns System Architecture: Build for flexibility and reusability, ensuring features solve problems for multiple product teams without creating maintenance bottlenecks UX Collaboration: Work in close partnership with UX designers to bridge the gap between Figma and code, ensuring technical feasibility during design reviews Product Integration: Act as the dedicated technical point of contact for product areas to identify patterns that should be integrated into the core library Accessibility Standards: Own the accessibility (A11y) for your features, ensuring components meet WCAG 2.1/2.2 standards Release Management: Manage the lifecycle of features within a versioned code library, ensuring safe releases and clear migration paths Technical Documentation: Produce clear, comprehensive documentation so that stakeholders, engineers, and AI agents can understand and extend your work Mentorship: Participate in code reviews and RFCs, providing constructive feedback to help other engineers grow while maintaining a high quality bar Requirements: Core Expertise: Advanced, hands-on proficiency with React, TypeScript, and CSS Frontend Experience: 5+ years of professional experience in frontend web development Systems Thinking: Proven experience building scalable libraries, shared infrastructure, or modular UI components Inclusivity: Strong understanding of building accessible interfaces and applying WCAG standards Strategic Execution: Ability to take vague requests, break them down into manageable tracks, and deliver at a steady, predictable pace Communication: Upper-intermediate or higher level of spoken and written English Desirable: Design Systems: Proven experience contributing to a professional Design System or a major open-source project Modern Tooling: Experience with Next.js, CSS Modules, SASS, or Styled Components Testing: Familiarity with end-to-end testing frameworks like Playwright Infrastructure: Understanding of AWS cloud infrastructure or CI/CD practices Backend: Exposure to Node.js, MongoDB Personal skills: Accountability: You take ownership and follow through on your responsibilities Drive: You're proactive and results-oriented, always seeking better ways to solve problems Self-development: You stay curious, seek feedback, and aim for continuous improvement Effective communication: You communicate your ideas clearly and collaborate effectively in a team Mentoring: You're open to helping less experienced team members and sharing knowledge What`s in it for you? Strong community: Work alongside top professionals in a friendly, open-door environment Growth focus: Take on large-scale projects with a global impact and expand your expertise Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies Flexibility: Enjoy flexibility – full remote working possibilities Care: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations About us: At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress. With delivery centers in Wrocław and Gdańsk, our 300+ professionals in Poland drive forward-thinking solutions for global clients. Join a community where collaboration sparks innovation—and your impact reaches millions. Want to learn more about us? Follow us on Instagram , Facebook , LinkedIn . Explore, empower, engineer with Ciklum! Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.

🏢 Summary: The role involves designing and implementing scalable, cloud-native integration solutions connecting diverse enterprise systems across global operations. You will develop and maintain microservices-based integrations using Java and Python, leveraging Kubernetes, Docker, and Oracle Cloud services. The position covers the full integration lifecycle from requirements analysis to deployment and support. 🗂️ Requirements: Bachelor’s degree in Computer Science, Information Technology or related field, Proven experience as Integration Developer or similar role, Strong experience with Kubernetes and microservices architecture, Strong programming skills in Java and Python, Experience with Spring Boot, REST, SOAP and Camel, Hands-on experience with Docker and container orchestration, Experience with CI/CD tools and version control systems, Understanding of network protocols and security principles, Knowledge of cloud infrastructure 📃 Skills: Java, Python, SpringBoot, REST, SOAP, Camel, Kubernetes, Docker, Microservices, OracleCloud, Git, Jenkins, CICD, Networking, Security, Cloud 🏢 Description: We are looking for Developer in Integrations Development team to be part of our team which is responsible (but not limited to) for developing and maintaining integrations between various applications company is using to run the business. Our role is to be part of whole lifecycle of the implementing of such integrations - from helping business process owners to realize idea, setting up requirements, development, production deployment, handover to support lines up to benefits realization of what our work has contributed. As a retail business company with long history, many support offices and thousands of stores around the globe it is not a surprise that application and technology portfolio is fairly wide - from top-new digital platforms to large ERP accounting systems, from presence in public clouds, using newest beta services to on-site server based CRM applications. Our talent is to fulfill any demand if it gives value disregard how different the applications we are integrating might be. We are looking for you if you are ready for such challenges which in the end are making work and life more interesting and engaging! Responsibilities Design and implement highly scalable, resilient, and performant cloud-native integration solutions. Create and manage containerized applications using Docker and Kubernetes, ensuring seamless deployment and orchestration. Write clean, maintainable, and efficient code to build integration services. Develop integration flows and APIs using a mix of custom code in Java and Python, and Oracle Cloud native services. Ensure that integrations are designed with scalability, reliability, and fault tolerance in mind. Collaborate with cross-functional teams to understand business requirements and translate them into technical specifications. Proactively identify and resolve any issues related to the performance and reliability of integrations. Advocate for and implement best practices in cloud architecture, Kubernetes management, integration design, and coding. Ensure all solutions adhere to enterprise security policies and compliance requirements. Document all processes, designs, and deployments meticulously for future reference and for the use of other team members. Work closely with other developers, architects, and product teams to deliver end-to-end solutions. Provide technical guidance and support to other team members. Participate in code reviews, team meetings, and knowledge-sharing sessions. Requirements Bachelor’s degree in computer science, Information Technology, or a related field. Proven experience as an Integration Developer or similar role, with a focus on Kubernetes and microservices architecture. Strong programming skills and experience in languages such as Java, Python, Spring Boot, REST, SOAP, Camel. In-depth knowledge of Kubernetes, Docker, and related container orchestration and management technologies. Familiarity with CI/CD tools and version control systems (e.g., Git, Jenkins). Solid understanding of network protocols, security principles, and cloud infrastructure. Excellent problem-solving abilities and a strong attention to detail. Nice to have Understanding of retail business processes. Experience with public clouds. Experience in test automation for unit and integration testing. What do we offer? Contract of employment Annual bonus Private medical care Cafeteria Platform/Multisport English lessons subsidized by the company Group insurance Attractive discounts for products and services at our stations Employee stock purchase plan Employee Assistance Program (Lyra) Modern and convenient office that you can virtually visit here - https://goo.gl/maps/CLteHfYcdYMbdESq6 Trainings & possibility to develop skills in a wide international environment When working with us you can depend upon it that you will not be judged on the grounds of race, national origin, gender, sexual orientation, disability, age, or other legally protected status. Oppositely – we believe that our diverse and inclusive culture helps us create an amazing atmosphere where everybody feels welcome.  Check who we are here: https://youtu.be/td-QGnNnvW0 Want to know even more about us? Interested? We encourage you to apply. We know great companies are built from within, by great people like you. Come grow with us! We´re looking forward to your application We hereby inform that in the company Circle K Business Centre Poland sp. z o.o. with registered office in Warsaw an Internal Notification and Follow-up Actions Procedures applies. The document describes rules for reporting violations of law by whistleblowers. Full content of the above-mentioned Procedure is available here: https://www.circlek.pl/o-nas/procedury-zgloszen