Senior Shopify Engineer

🏢 Summary: Design and lead end-to-end technical architecture for Shopify (primarily Shopify Plus) stores, including headless and theme-based implementations. Develop complex integrations with enterprise systems and build custom Shopify applications using advanced platform capabilities. Act as a senior technical authority driving architecture, integrations, and development standards. 🗂️ Requirements: 5+ years in e-commerce solution architecture or senior technical role, Minimum 3 years of hands-on Shopify experience, Proven expertise with Shopify Plus and Shopify admin, Experience with headless Shopify architectures (Hydrogen/Oxygen), Experience developing custom Shopify apps, Hands-on use of Shopify Functions and Checkout UI extensions, Strong experience with Shopify REST and GraphQL APIs, Proficiency in HTML, CSS, JavaScript, TypeScript, React or Next.js, Expertise in MS Entity Framework, Experience integrating Shopify with ERP, OMS, or PIM systems 📃 Skills: Shopify, ShopifyPlus, Liquid, Hydrogen, Oxygen, ShopifyFunctions, CheckoutUI, REST, GraphQL, HTML5, CSS3, SCSS, JavaScript, TypeScript, React, Next.js, EntityFramework, ERP, OMS, PIM, WMS, CRM, CDP 🏢 Description: Shopify Architect About the Client Our client is an AI-native enterprise solutions company with purpose-built technology for public and private companies, governments, institutions, asset managers, and family offices. With headquarters in New York City and four global offices, they are supported by more than 300 engineers and delivery professionals across the globe. By centralizing and unifying data, automating workflows, and surfacing predictive insights, they enable organizations to scale operational excellence and generate alpha across complex enterprise environments. The Role Design and document the complete end-to-end technical architecture for new and existing Shopify (primarily Shopify Plus) stores, including storefront design (headless or theme-based), backend services, integration strategy, and security. Architect and develop complex system integrations between Shopify and mission-critical enterprise platforms such as ERP, OMS, PIM, WMS, CRM, and CDP, leveraging REST and GraphQL APIs. Expertly develop, customize, and maintain high-quality Shopify themes, working extensively with Liquid, HTML5, CSS3/SCSS, and JavaScript/TypeScript or other JS frameworks (React). Build and maintain custom Shopify applications (private or public) and implement advanced functionality using Shopify Functions and Checkout Extensibility to meet unique client requirements. Serve as the trusted technical advisor to client executives (CTO, CIO) and technical teams, providing expert guidance on Shopify. Partner with the Sales team to provide technical vetting, solution scoping, effort estimations, and compelling technical presentations to existing and prospective clients. Ensure adherence to development standards and practices. Requirements 5+ years of experience in e-commerce solution architecture, technical consulting, or an equivalent senior technical role with at least 3 years of Shopify experience. Proven expertise with the Shopify platform, especially Shopify Plus, its admin features, Liquid templating, and the app ecosystem. Proven expertise with headless Shopify architectures, including Hydrogen/Oxygen implementations. Experience developing custom Shopify apps, utilization of Shopify functions and Checkout UI extensions for advanced customizations. Strong hands-on experience with Shopify's APIs (REST and GraphQL) and a solid understanding of modern web technologies (HTML, CSS, JavaScript/TypeScript, React/Next.js). Expertise in the MS Entity Framework. Experience in architecting and implementing integrations with major enterprise back-office systems (ERP, OMS, PIM). Excellent communication skills. Ability for critical thinking & creativity. Having a systematic and logical approach to problem-solving and teamwork skills is crucial. Nice to Have Shopify Certification or other relevant e-commerce platform certifications. Prior experience in re-platforming from legacy systems. Familiarity with back-end languages (e.g., Node.js, Ruby). What We Offer Monthly compensation: 6,000 - 8,000 USD. Working model: Hybrid setup with 3 days from the office in the center of Warsaw, and 2 days remote. Contract type: Candidates can choose between a B2B contract or a Contract of Employment. We value creative problem solvers who learn fast, work well in an open and diverse environment, and enjoy pushing the bar for success ever higher. We do work hard, but we also choose to have fun while doing it.

🏢 Summary: The offer is for a Senior Frontend Developer responsible for building and maintaining user interfaces using React within AI-powered business platforms. The role focuses on developing high-quality, scalable front-end solutions with strong emphasis on TDD, performance, and cross-team collaboration. Candidates will work in an Agile environment delivering robust, user-friendly products. 🗂️ Requirements: 6+ years of experience with JavaScript and TypeScript, Strong knowledge of React.js and Redux, Understanding of JavaScript design patterns, Knowledge of functional programming, Knowledge of asynchronous programming, Experience with Git and branch management, Ability to debug front-end issues using debugging tools, Experience creating and integrating custom packages, Understanding of object-oriented programming in JavaScript, Hands-on experience with HTML5 and CSS3, Experience with Test-Driven Development (TDD), Experience with Continuous Integration, Familiarity with Agile development practices, Ability to write cross-browser compatible code 📃 Skills: JavaScript, TypeScript, React, Redux, Next.js, HTML5, CSS3, Git, TDD, CI, Agile 🏢 Description: Overview We are a company that leads in AI-powered business operations, providing digital solutions and consulting services that help businesses grow and improve. We focus on using advanced technology to make operations easier, increase efficiency, and create new opportunities, especially in private capital markets. Our services include: PaaS (Platform as a Service): Our main platform uses AI to improve workflows, generate insights, and help businesses grow faster. SaaS (Software as a Service): A cloud platform that offers strong performance, smart tools, and large-scale execution. S&C (Solutions and Consulting Suite): Flexible technology tools to manage, develop, and improve business performance. With over ten years of experience helping fast-growing companies and private equity-backed businesses, we bring deep knowledge and a proven track record of turning technology into a real advantage. Responsibilities Design and develop user interfaces using React. Implement and maintain test-driven development (TDD) and continuous integration. Work with project managers, analysts, and sales teams to deliver high-quality products on time. Follow best practices in testing, accessibility, and performance. Work closely with design, backend, QA, and product teams to build user-friendly solutions. Requirements 6+ years experience with JavaScript and TypeScript. Understand design patterns and how to use them in JavaScript. Experience with modern front-end frameworks like React.js + Redux; Next.js is a bonus. Knowledge of functional and asynchronous programming. Experience with Git and branch management. Ability to debug front-end issues and use debugging tools. Familiar with creating and integrating custom packages. Understand object-oriented programming concepts in JavaScript. Can work under pressure and meet tight deadlines. Hands-on experience with HTML5 and CSS3. Familiar with Agile development practices. Good communication and organizational skills. Able to write code that works across different browsers. Bachelor’s degree in Computer Science or similar is preferred. Why Join Us? We appreciate creative problem-solvers who learn quickly, work well in a diverse environment, and like to raise the standard for success. We work hard but also make sure to enjoy what we do.

🏢 Summary: The offer is for an experienced Shopify Developer to lead end-to-end technical architecture and development of Shopify (mainly Shopify Plus) stores, including headless implementations and complex integrations. The role focuses on storefront development, custom app creation, system integrations, and architectural decision-making within modern commerce environments. It combines hands-on development with strategic technical leadership in a hybrid work model. 🗂️ Requirements: 5+ years experience in e-commerce solution architecture or senior technical role, Minimum 3 years of dedicated Shopify experience, Proven expertise with Shopify platform, especially Shopify Plus, Experience with headless Shopify architectures including Hydrogen and Oxygen, Experience developing custom Shopify apps, Experience with Shopify Functions and Checkout UI extensions, Strong experience with Shopify REST and GraphQL APIs, Strong knowledge of HTML, CSS, JavaScript or TypeScript, Experience with React or Next.js, Experience integrating ERP, OMS or PIM systems 📃 Skills: Shopify, ShopifyPlus, Liquid, HTML5, CSS3, SCSS, JavaScript, TypeScript, React, Next.js, Hydrogen, Oxygen, REST, GraphQL, ERP, OMS, PIM, Node.js, Ruby, ShopifyFunctions, Webhooks 🏢 Description: Shopify Developer IT · Warsaw (City Center) · Hybrid About the Client Our Client is a fast-growing, international technology company that provides innovative digital solutions for the global market. They are currently expanding and developing their R&D center in Warsaw. They are a leader in AI-powered enterprise operations, delivering digital solutions and consulting services that drive value and transform businesses. They specialize in using advanced technology to streamline operations, improve efficiency, and unlock new revenue opportunities, particularly within the private capital markets. With over a decade of experience supporting high-growth companies, they bring deep domain expertise and a proven ability to turn technology into a strategic advantage. Role Overview We are seeking an experienced Shopify Developer to design and document the complete end-to-end technical architecture for new and existing Shopify (primarily Shopify Plus) stores. In this role, you will be responsible for storefront design (headless or theme-based), backend services, integration strategies, and security. You will act as a key technical expert evaluating modern commerce patterns and guiding architectural decisions. Key Responsibilities Architecture & Strategy: Design and document end-to-end technical architectures, evaluate modern commerce patterns (headless, composable commerce), and lead decisions on build vs. buy vs. extend within the Shopify ecosystem. Storefront Development: Build and maintain complex custom themes and storefronts using Liquid, HTML5, CSS3/SCSS, and JavaScript/TypeScript or other JS frameworks like React. App & Feature Integration: Integrate, build, and maintain custom Shopify applications (private or public). Implement advanced functionality using Shopify Functions, webhooks, and Checkout Extensibility. Optimization: Customize checkout, cart, and product flows for enhanced analytics and conversion optimization. System Integrations: Lead and manage integrations with external ERP systems, PIM systems, and payment gateways. Collaboration: Partner closely with product managers, stakeholders, and designers to implement changes and enhancements. Requirements & Qualifications Experience: 5+ years of experience in e-commerce solution architecture, technical consulting, or an equivalent senior technical role, including at least 3 years of dedicated Shopify experience. Shopify Expertise: Proven expertise with the Shopify platform (especially Shopify Plus), its admin features, Liquid templating, and the app ecosystem. Headless Commerce: Proven expertise with headless Shopify architectures, including Hydrogen/Oxygen implementations. Customization: Experience developing custom Shopify apps, utilizing Shopify Functions, and implementing Checkout UI extensions for advanced customizations. Technical Skills: Strong hands-on experience with Shopify's APIs (REST and GraphQL) and a solid understanding of modern web technologies including HTML, CSS, JavaScript/TypeScript, and React/Next.js. Integrations: Experience in architecting and implementing integrations with major enterprise back-office systems (ERP, OMS, PIM). Soft Skills: Excellent communication skills, critical thinking, creativity, and a systematic, logical approach to problem-solving and teamwork. Nice-to-Haves: Shopify Certification or other relevant e-commerce platform certifications, prior experience in re-platforming from legacy systems, and familiarity with back-end languages (e.g., Node.js, Ruby). What Is Offered Compensation: Monthly compensation up to $6,500 USD . Contract Type: B2B contract via Optiveum. Work Model: Hybrid (3 days working from the office located in the center of Warsaw, 2 days working from home). Stability: Long-term cooperation with a stable, international organization. Culture: We value creative problem solvers who learn fast, work well in an open and diverse environment, and enjoy pushing the bar for success ever higher. We work hard, but we also choose to have fun while doing it.

🏢 Summary: Role for a Shopify Engineer to build and scale a multi-brand ecommerce ecosystem on Shopify. The position focuses on developing custom themes and apps, integrating backend systems, and optimizing performance across multiple storefronts. You will deliver scalable, reliable solutions supporting complex ecommerce operations. 🗂️ Requirements: 3+ years experience in Shopify ecosystem, Strong knowledge of Liquid and Shopify theme development, Practical experience with JavaScript and TypeScript, Experience with Shopify APIs (REST or GraphQL), Experience building Shopify apps with Node.js, Understanding of ecommerce flows (catalog, cart, checkout, payments), Ability to work independently and own deliverables 📃 Skills: Shopify, Liquid, JavaScript, TypeScript, Node.js, GraphQL, REST, HTML, CSS, OAuth, Git, Docker, APIs, ERP, PIM, CRM 🏢 Description: Client Our client is a global entertainment company. Project overview This project centers on building a flexible multi brand ecommerce environment using the Shopify platform. The team aims to provide fast and accessible storefronts, custom app functionality, and stable backend integrations with internal business systems. The environment is expanding, and your contribution will help shape its evolution. Position overview You will work as a Shopify Engineer focused on creating reliable and scalable ecommerce experiences across several brands. You will develop custom themes, build Shopify applications, and design integrations that support a multi store ecosystem. Your work will contribute directly to improving performance, usability, and operational workflows for the product team. Technology stack Liquid, JavaScript, TypeScript, Node.js, Shopify Admin API, Shopify Storefront API, GraphQL, Git, Docker, Optional Python Responsibilities Develop and customize Shopify themes using Liquid, HTML, CSS, and JavaScript Create reusable templates and components for multi brand setups Build and maintain private or public Shopify applications Integrate with Shopify Admin and Storefront APIs and work with webhooks Implement secure authorization flows using OAuth Build backend services with Node.js for app functionality and platform integrations Support data synchronization with ERP, PIM, or CRM systems Ensure strong performance, SEO readiness, accessibility, and smooth overall UX Troubleshoot platform issues and optimize storefront speed Collaborate with designers, product managers, and QA specialists throughout delivery Requirements Experience of three years or more working in the Shopify ecosystem Strong knowledge of Liquid and Shopify theme development Practical experience with JavaScript and TypeScript Experience with Shopify APIs using REST or GraphQL Background in building Shopify apps with Node.js Understanding of ecommerce flows such as catalog, cart, checkout, promotions, and payments Ability to work independently and take ownership of deliverables Nice to have Python experience useful for data integrations or ETL tasks Headless Shopify experience using Hydrogen, Remix, or Next.js Experience with multi store or multi language setups Familiarity with TailwindCSS or other UI frameworks Experience with Shopify Plus

🏢 Summary: Shopify Engineer role focused on building and scaling a multi-brand ecommerce ecosystem on Shopify. The position involves developing custom themes and apps, integrating backend systems, and optimizing performance, accessibility, and user experience. You will contribute to a growing multi-store environment with scalable architecture and reliable integrations. 🗂️ Requirements: 3+ years experience in Shopify ecosystem, Strong knowledge of Liquid and Shopify theme development, Experience with JavaScript and TypeScript, Experience with Shopify APIs (REST or GraphQL), Experience building Shopify apps with Node.js, Understanding of ecommerce flows (catalog, cart, checkout, payments), Ability to work independently and own deliverables 📃 Skills: Shopify, Liquid, JavaScript, TypeScript, Node.js, GraphQL, REST, HTML, CSS, Git, Docker, OAuth, Hydrogen, Remix, Next.js, TailwindCSS, Python 🏢 Description: Client Our client is a global entertainment company. Project overview This project centers on building a flexible multi brand ecommerce environment using the Shopify platform. The team aims to provide fast and accessible storefronts, custom app functionality, and stable backend integrations with internal business systems. The environment is expanding, and your contribution will help shape its evolution. Position overview You will work as a Shopify Engineer focused on creating reliable and scalable ecommerce experiences across several brands. You will develop custom themes, build Shopify applications, and design integrations that support a multi store ecosystem. Your work will contribute directly to improving performance, usability, and operational workflows for the product team. Technology stack Liquid, JavaScript, TypeScript, Node.js, Shopify Admin API, Shopify Storefront API, GraphQL, Git, Docker, Optional Python Responsibilities Develop and customize Shopify themes using Liquid, HTML, CSS, and JavaScript Create reusable templates and components for multi brand setups Build and maintain private or public Shopify applications Integrate with Shopify Admin and Storefront APIs and work with webhooks Implement secure authorization flows using OAuth Build backend services with Node.js for app functionality and platform integrations Support data synchronization with ERP, PIM, or CRM systems Ensure strong performance, SEO readiness, accessibility, and smooth overall UX Troubleshoot platform issues and optimize storefront speed Collaborate with designers, product managers, and QA specialists throughout delivery Requirements Experience of three years or more working in the Shopify ecosystem Strong knowledge of Liquid and Shopify theme development Practical experience with JavaScript and TypeScript Experience with Shopify APIs using REST or GraphQL Background in building Shopify apps with Node.js Understanding of ecommerce flows such as catalog, cart, checkout, promotions, and payments Ability to work independently and take ownership of deliverables Nice to have Python experience useful for data integrations or ETL tasks Headless Shopify experience using Hydrogen, Remix, or Next.js Experience with multi store or multi language setups Familiarity with TailwindCSS or other UI frameworks Experience with Shopify Plus What We Offer: Vacation days : Up to 26 business days per year. 10 illness/special days off per year (fully paid, no medical papers needed) for all contract types Health and life insurance (Luxmed) MyBenefit platform with Multisport option Internal psychological support service English language classes from the first working day Access to external learning platforms : O’Reilly, LinkedIn Learning, Udemy, and a wide catalog of diverse internal training Flexible workplace : work from the office, from home, or choose a hybrid option Tech Skills Mentoring Program Opportunities to develop as a public speaker, mentor, or technical interviewer Fully paid idle (bench) when not involved in a project Certification reimbursement (AWS, GCP, Microsoft, etc.)

🏢 Summary: Senior Full Stack Team Lead role focused on building and scaling web applications using React and Node.js while leading a development team. The position combines hands-on front-end and back-end development with architecture design, API development, and deployment in cloud environments. You will drive technical decisions, ensure code quality, and oversee delivery of scalable, production-ready systems. 🗂️ Requirements: 7+ years full-stack development experience with React and Node.js, 2+ years experience in leadership or senior technical role, Strong experience with React.js, Redux, React Hooks, Strong knowledge of HTML5, CSS3, modern JavaScript, Proficiency in Node.js and Express.js, Experience building REST APIs, Experience with PostgreSQL or MySQL, Experience with authentication methods (OAuth, JWT, sessions), Experience with CI/CD and Docker, Experience working with production systems, Experience with Git, Understanding of Agile/Scrum methodologies 📃 Skills: React, Redux, JavaScript, HTML5, CSS3, Node.js, Express, REST, GraphQL, PostgreSQL, MySQL, OAuth, JWT, Docker, Kubernetes, AWS, Azure, GCP, Git, CI/CD, Webpack, Babel, Vite, MongoDB 🏢 Description: Overview We are a leading company in AI-based enterprise operations. We provide digital solutions and consulting services that help businesses grow and improve. We use modern technology to make processes simpler, increase efficiency, and create new ways to earn money, especially in private capital markets. Our ecosystem includes three main parts. First, PaaS (Platform as a Service) with the Orion Platform, which helps improve workflows, show useful insights, and support value growth across portfolios. Second, SaaS (Software as a Service), a cloud platform that offers strong performance and smart tools at scale. Third, our Solutions and Consulting Suite, which includes flexible technology solutions to manage, grow, and improve company performance. With more than 10 years of experience, we support fast-growing companies and private equity platforms, turning technology into a real business advantage. Responsibilities and Duties We are looking for an experienced Full Stack Team Lead with strong skills in React and Node.js. The right person has over 7 years of experience building high-quality web applications and has experience leading a team. You will guide developers, work on both front-end and back-end, take part in all stages of development, and support junior team members. Key Responsibilities Team Leadership & Mentorship: Lead and support a team of developers. Help them grow, review code, and give technical advice. Front-End Development: Build and maintain user interfaces using React.js, Redux, and modern JavaScript. Back-End Development: Create strong and scalable server applications and APIs using Node.js and Express. Integration: Work with database engineers to design databases and manage data using MongoDB or SQL. Application Architecture: Design scalable systems and microservices that meet business needs. Testing & Debugging: Write tests, fix issues, and improve performance. Support good testing practices. Deployment: Manage releases using CI/CD tools and Docker. Collaboration: Work with designers, product managers, and developers to create useful solutions. Communicate with both technical and non-technical teams. Maintenance: Monitor systems, fix problems, and improve applications. Documentation: Write and maintain technical documents for systems and APIs. Requirements Front-End: Strong experience with React.js, Redux, React Hooks, and component-based design Good knowledge of HTML5, CSS3, and modern JavaScript Familiar with tools like Webpack, Babel, or Vite Back-End: Strong skills in Node.js and Express.js Experience building and using APIs (GraphQL is a plus, REST is required) Knowledge of authentication methods like OAuth, JWT, and sessions Database: Experience with PostgreSQL or MySQL Additional Skills: Experience with Docker and Kubernetes is a plus Knowledge of cloud platforms like AWS, Azure, or GCP Experience with Git Understanding of Agile/Scrum methods Qualifications At least 7 years of experience in full-stack development with React and Node.js At least 2 years in a leadership or senior role Experience working with live production systems Bachelor’s degree in Computer Science or similar (preferred) Soft Skills Strong problem-solving and analytical thinking Good communication and teamwork skills Ability to work independently and manage tasks well Willingness to learn new technologies and improve continuously Why Join Us? We look for people who solve problems creatively, learn quickly, and enjoy working in an open and diverse team. We work hard, but we also like to enjoy what we do and aim for high results.

🏢 Summary: Full Stack Developer role with a primary focus on backend development in Java, responsible for building and maintaining scalable, secure microservices and REST APIs within an Agile environment. The position involves database design, cloud integration, and CI/CD pipeline participation, with additional work on modern React-based frontend components. The role emphasizes high code quality, performance optimization, and secure application architecture. 🗂️ Requirements: 5+ years experience in Full Stack or Backend development, Strong proficiency in Java, Experience with Spring Boot, Hibernate, JPA, Experience building REST APIs and microservices, Knowledge of OAuth2 and JWT authentication, Experience with SQL and NoSQL databases, Experience with CI/CD pipelines, Experience with Docker and Kubernetes, Cloud platform experience (AWS, Azure, or GCP), Experience working in Agile teams, Bachelor’s or Master’s degree in Computer Science or related field 📃 Skills: Java, Spring, SpringBoot, Hibernate, JPA, REST, Microservices, OAuth2, JWT, PostgreSQL, MySQL, MongoDB, Redis, React, Redux, TypeScript, JavaScript, HTML5, CSS3, MaterialUI, Bootstrap, Tailwind, Jenkins, GitHubActions, GitLab, Docker, Kubernetes, AWS, Azure, GCP 🏢 Description: Overview We are a company leveraging AI to optimize business operations. Our mission is to provide digital solutions and consulting services that help companies grow and create value. By using modern technology, we simplify processes, increase efficiency, and discover new revenue opportunities—especially in private capital markets. Our ecosystem includes: PaaS (Platform as a Service): A core platform that enhances workflows, provides actionable insights, and supports value creation. SaaS (Software as a Service): A cloud platform offering robust performance and intelligent tools at scale. S&C (Solutions & Consulting): Flexible tools and methodologies to manage, grow, and improve company performance. With over 10 years of experience working with fast-growing companies and private equity businesses, we know how to harness technology to deliver tangible business advantages. Job Description We are looking for Full Stack Developer with strong Java expertise. While your main focus will be backend systems, experience with modern frontend technologies (React.js, TypeScript) is also required. You will join an Agile team to design, build, and maintain scalable, secure, and high-performing applications. Key Responsibilities Backend Development (Primary Focus) Develop and maintain REST APIs and microservices using Java (Spring Boot, Hibernate, JPA). Implement secure authentication, authorization, and data handling mechanisms. Design and optimize databases (PostgreSQL, MySQL, MongoDB) for performance and reliability. Integrate with third-party APIs, cloud services, and internal systems. Participate in deployment pipelines using CI/CD tools (Jenkins, GitHub Actions, GitLab CI/CD) and containerization (Docker, Kubernetes). Frontend Development (Nice-to-Have) Build responsive UI components using React.js, Redux, and modern JavaScript/TypeScript. Apply best practices in UI/UX design, performance optimization, and cross-browser compatibility. Work with UI frameworks like Material-UI, Bootstrap, or Tailwind CSS. Code Quality & Testing Write clean, maintainable, and well-documented code. Create unit and integration tests for backend services, and frontend components if applicable. Collaboration & Agile Development Collaborate with designers, product managers, and DevOps engineers. Participate in Agile/Scrum ceremonies and contribute to process improvement initiatives. Required Skills & Experience Backend Strong proficiency in Java , Spring Boot, Hibernate, JPA, and REST API development. Experience with microservices architecture and API Gateway. Knowledge of authentication/authorization protocols: OAuth2, JWT, sessions. Frontend (Optional / Nice-to-Have) Experience with React.js, Redux, TypeScript, HTML5, CSS3, and modern JavaScript. Understanding of state management and component-based design. Familiarity with UI libraries/frameworks: Material-UI, Bootstrap, or Tailwind CSS. Database & DevOps SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis). CI/CD pipelines (Jenkins, GitHub Actions, GitLab CI/CD). Cloud platform experience (AWS, Azure, GCP) and containerization (Docker/Kubernetes). Qualifications Bachelor’s or Master’s degree in Computer Science, Engineering, or related field. 5+ years of experience as a Full Stack or Backend Developer. Experience working in Agile teams. Strong problem-solving and analytical skills. Soft Skills Excellent communication and teamwork abilities. Ability to manage multiple tasks in a fast-paced environment. Eagerness to learn new technologies and improve processes.

🏢 Summary: Hybrid React Team Lead role focused on leading the development of scalable web applications and managing a frontend team in a dynamic, product-oriented environment. The position combines hands-on React development with architectural decisions, state management design, and close collaboration with cross-functional teams. It requires strong expertise in modern frontend technologies, testing practices, and performance optimization. 🗂️ Requirements: 5+ years experience with JavaScript/TypeScript, 3+ years experience with React.js, Strong knowledge of React Hooks, Strong knowledge of Context API, Strong knowledge of Redux (Redux Toolkit preferred), Experience with frontend design patterns, Experience with clean code principles, Experience with RESTful APIs or GraphQL, Good knowledge of HTML5, Good knowledge of CSS3/SCSS, Experience with responsive design, Experience with component libraries and design systems, Familiarity with Webpack or Vite, Experience leading or mentoring developers 📃 Skills: JavaScript, TypeScript, React, Redux, ReduxToolkit, Hooks, ContextAPI, HTML5, CSS3, SCSS, REST, GraphQL, Webpack, Vite, Jest, ReactTestingLibrary, Storybook, MaterialUI, Tailwind, Next.js, Lighthouse, ChromeDevTools, WCAG 🏢 Description: Please note: This is a hybrid role – 3 days per week from the office in Warsaw. Overview We are a leader in AI-powered enterprise operations. We deliver digital solutions and consulting services that help companies grow and improve their performance. We use advanced technology to simplify processes, increase efficiency, and create new business opportunities, especially in private capital markets. Our ecosystem includes: PaaS (Platform as a Service) – an AI-based platform that improves workflows, provides useful insights, and supports value creation across portfolios. SaaS (Software as a Service) – a cloud platform that offers strong performance, smart tools, and scalable solutions. S&C (Solutions and Consulting Suite) – modular technology solutions that help manage, grow, and improve company performance. With more than 10 years of experience working with fast-growing companies and private equity-backed businesses, we combine strong industry knowledge with technology expertise to create real business value. The Opportunity We are looking for an experienced and motivated React Team Lead to lead the development of modern and scalable web applications. You will manage a team of React developers, support good frontend architecture practices, and make sure we deliver fast and high-quality user interfaces. The ideal candidate has strong experience with React (including Hooks and Context API), Redux, and frontend design patterns. You should feel comfortable working in a dynamic and team-oriented environment. Responsibilities Lead, mentor, and support a team of React developers through code reviews, 1:1 meetings, and practical guidance. Work closely with product managers, designers, and backend engineers to plan and prioritize features. Manage sprint planning, task estimation, and delivery timelines for the frontend team. Design and build complex user interfaces using React, Hooks, and Context API. Develop and maintain scalable state management solutions using Redux Toolkit. Apply modern frontend design patterns (such as container/presenter, compound components, render props, and HOCs). Build reusable component libraries and ensure alignment with the design system. Improve application performance, accessibility, and cross-browser compatibility. Promote best practices in code quality, testing, CI/CD, and documentation. Maintain strong unit and integration test coverage (e.g., with Jest and React Testing Library). Support frontend architecture decisions and evaluate new tools when needed. Requirements 5+ years of experience with JavaScript/TypeScript, including 3+ years with React.js Strong knowledge of React Hooks, Context API, and Redux (Redux Toolkit preferred) Experience with frontend design patterns and clean code principles Experience working with RESTful APIs or GraphQL Good knowledge of HTML5, CSS3/SCSS, and responsive design Experience with component libraries and design systems (e.g., Storybook, Material UI, Tailwind) Familiarity with build tools such as Webpack or Vite Experience leading or mentoring developers Nice to Have Experience with performance tools (e.g., Lighthouse, Chrome DevTools) Experience with SSR/SSG frameworks like Next.js Knowledge of accessibility standards (WCAG) Contributions to open-source frontend projects Why Join Us? We are looking for creative people who solve problems, learn quickly, and enjoy working in an open and diverse environment. We work hard, support each other, and also make time to enjoy what we do.

🏢 Summary: Backend-focused Full Stack Developer role centered on designing and building scalable, secure Java-based applications within an Agile environment. The position emphasizes backend development with Spring Boot and microservices, while contributing to CI/CD, cloud deployments, and optionally modern React-based frontend components. You will develop high-performing systems, integrate APIs, and ensure code quality through testing and best practices. 🗂️ Requirements: 5+ years experience as Java Backend or Full Stack Developer, Strong proficiency in Java, Experience with Spring Boot, Hibernate, JPA, Experience building REST APIs and microservices, Knowledge of OAuth2 and JWT authentication, Experience with SQL and NoSQL databases, Experience with CI/CD pipelines, Experience with Docker and Kubernetes, Experience with AWS, Azure or GCP, Bachelor’s or Master’s degree in Computer Science or related field, Experience working in Agile teams 📃 Skills: Java, Spring, SpringBoot, Hibernate, JPA, REST, Microservices, OAuth2, JWT, PostgreSQL, MySQL, MongoDB, Redis, Jenkins, GitHubActions, GitLab, Docker, Kubernetes, AWS, Azure, GCP, React, Redux, TypeScript, HTML5, CSS3 🏢 Description: Overview We are a company leveraging AI to optimize business operations. Our mission is to provide digital solutions and consulting services that help companies grow and create value. By using modern technology, we simplify processes, increase efficiency, and discover new revenue opportunities—especially in private capital markets. Our ecosystem includes: PaaS (Platform as a Service): A core platform that enhances workflows, provides actionable insights, and supports value creation. SaaS (Software as a Service): A cloud platform offering robust performance and intelligent tools at scale. S&C (Solutions & Consulting): Flexible tools and methodologies to manage, grow, and improve company performance. With over 10 years of experience working with fast-growing companies and private equity businesses, we know how to harness technology to deliver tangible business advantages. Job Description We are looking for a Backend-Focused Full Stack Developer with strong Java expertise. While your main focus will be backend systems, experience with modern frontend technologies (React.js, TypeScript) is a valuable plus. You will join an Agile team to design, build, and maintain scalable, secure, and high-performing applications. Key Responsibilities Backend Development (Primary Focus) Develop and maintain REST APIs and microservices using Java (Spring Boot, Hibernate, JPA). Implement secure authentication, authorization, and data handling mechanisms. Design and optimize databases (PostgreSQL, MySQL, MongoDB) for performance and reliability. Integrate with third-party APIs, cloud services, and internal systems. Participate in deployment pipelines using CI/CD tools (Jenkins, GitHub Actions, GitLab CI/CD) and containerization (Docker, Kubernetes). Frontend Development (Nice-to-Have) Build responsive UI components using React.js, Redux, and modern JavaScript/TypeScript. Apply best practices in UI/UX design, performance optimization, and cross-browser compatibility. Work with UI frameworks like Material-UI, Bootstrap, or Tailwind CSS. Code Quality & Testing Write clean, maintainable, and well-documented code. Create unit and integration tests for backend services, and frontend components if applicable. Collaboration & Agile Development Collaborate with designers, product managers, and DevOps engineers. Participate in Agile/Scrum ceremonies and contribute to process improvement initiatives. Required Skills & Experience Backend Strong proficiency in Java , Spring Boot, Hibernate, JPA, and REST API development. Experience with microservices architecture and API Gateway. Knowledge of authentication/authorization protocols: OAuth2, JWT, sessions. Frontend (Optional / Nice-to-Have) Experience with React.js, Redux, TypeScript, HTML5, CSS3, and modern JavaScript. Understanding of state management and component-based design. Familiarity with UI libraries/frameworks: Material-UI, Bootstrap, or Tailwind CSS. Database & DevOps SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis). CI/CD pipelines (Jenkins, GitHub Actions, GitLab CI/CD). Cloud platform experience (AWS, Azure, GCP) and containerization (Docker/Kubernetes). Qualifications Bachelor’s or Master’s degree in Computer Science, Engineering, or related field. 5+ years of experience as a Full Stack or Backend Developer (Java-focused). Experience working in Agile teams. Strong problem-solving and analytical skills. Soft Skills Excellent communication and teamwork abilities. Ability to manage multiple tasks in a fast-paced environment. Eagerness to learn new technologies and improve processes.

🏢 Summary: Senior Software Engineer role focused on designing, developing, and integrating advanced Shopify (primarily Shopify Plus) solutions within enterprise environments. The position involves building custom applications, headless architectures, and complex integrations with core business systems. Hybrid full-time role in Warsaw with B2B or CoE contract options. 🗂️ Requirements: 5+ years of experience in e-commerce architecture or technical consulting, Minimum 3 years of hands-on experience with Shopify ecosystem, Strong experience with Shopify Plus, including admin and app ecosystem, Experience building custom Shopify applications, Experience with Shopify Functions and Checkout UI extensions, Experience with headless Shopify architectures, Hands-on experience with Microsoft Entity Framework, Experience working with Shopify REST and GraphQL APIs, Strong knowledge of HTML, CSS, JavaScript, TypeScript, Experience integrating Shopify with ERP, OMS, PIM or similar enterprise systems 📃 Skills: Shopify, ShopifyPlus, Liquid, Hydrogen, Oxygen, EntityFramework, REST, GraphQL, HTML, CSS, JavaScript, TypeScript, SCSS, ShopifyFunctions, CheckoutUI, Node.js, Ruby 🏢 Description: 💰 Salary: 21,500-28,700 PLN/Month 💻 Warsaw, Poland (Hybrid - 3 days in office, 2 days remote) 🕦 Full-time ☑️ B2B or CoE We’re looking for a Senior Software Engineer to join a fast-growing international tech company focused on building modern, data-driven platforms that power digital transformation in the financial and enterprise sectors. Requirements: 5+ years of experience in e-commerce architecture, technical consulting, or a comparable senior level role, with a minimum of 3 years focused on the Shopify ecosystem. Strong hands-on experience with the Shopify platform, particularly Shopify Plus, including admin capabilities, Liquid templating, and the broader app ecosystem. Proven experience building custom Shopify applications, including advanced customizations using Shopify Functions and Checkout UI extensions. Solid understanding of headless Shopify architectures, with experience in Hydrogen and Oxygen implementations. Hands-on experience working with Microsoft Entity Framework. experience working with Shopify APIs, including REST and GraphQL, along with strong knowledge of modern web technologies such as HTML, CSS, JavaScript and TypeScript. Demonstrated ability to design and deliver integrations with enterprise systems such as ERP, OMS, and PIM. Nice to have: Previous experience leading or contributing to re platforming projects from legacy systems. Familiarity with backend technologies such as Node.js and Ruby. Shopify certifications or other relevant e-commerce platform certifications. Key Responsibilities: Design and document end to end technical architectures for both new and existing Shopify (primarily Shopify Plus) stores, covering storefront implementation (headless or theme based), backend services, integration strategy, and security. Develop, customize, and maintain high quality Shopify themes using HTML5, Liquid, CSS3/SCSS, along with JavaScript and TypeScript. Implement and design complex integrations between Shopify and core enterprise platforms such as CRM, CDP, WMS, PIM, OMS, and ERP, utilizing GraphQL and REST APIs. Develop and manage custom Shopify applications, delivering advanced capabilities through Shopify Functions and Checkout Extensibility to support specific client requirements. Collaborate closely with the Sales team to support technical evaluations, define solution scope, estimate effort, and deliver clear, compelling technical presentations to clients. Provide technical guidance to stakeholders and engineering teams, advising on Shopify solutions, architecture decisions, and industry best practices.