Backend Kotlin Engineer - Freelance

🏢 Summary: Full-time freelance opportunity for a Regular DevOps Engineer to support long-term projects (min. 6 months) in a remote CET setup. The role focuses on managing and optimizing cloud-native infrastructure using GitOps, Kubernetes, and observability tools. The engineer will work on modern B2B, FinTech, and e-commerce products within an experienced development team. 🗂️ Requirements: Good command of written and spoken English, Located in the European Union, Experience with ArgoCD (GitOps), Experience with Kubernetes (Rancher), Experience with PostgreSQL, Experience with Kafka, Experience with OpenTelemetry, Experience with Grafana, Experience with ELK stack 📃 Skills: ArgoCD, GitOps, Kubernetes, Rancher, PostgreSQL, Kafka, OpenTelemetry, Grafana, ELK 🏢 Description: Description Netguru is a trusted partner in digital commerce. The company helps leading brands modernize B2B solutions, marketplaces, and retail ecosystems. Since 2008, it has empowered businesses with cutting-edge technology, AI-powered personalization, and world-class engineering and design teams. A certified B Corporation®, Netguru is trusted by major brands including IKEA, VW, OLX, Delivery Hero, Żabka, Wolt, Careem, and Vinted. How freelancing works at Netguru? As a Netguru Freelancer , you can choose what works well for you. You decide when, where, and how you work on projects and tasks. We match you with work that fits your skills. Plus, you have access to various opportunities across different industries and companies. That means you will not only gain more experience, but also develop various skills. But there's more. Netguru freelancers can benefit from full-time collaboration and really be a part of the team. So, are you ready to make an impact? Join Netguru, and let's build beautiful software together. Currently we are looking for a Regular DevOps Engineer Salary range (Regular): from 90 PLN/h Engagement: fulltime Working Hours: CET Start date: around mid July 2026 Project duration: minimum 6 months Requirements Good command of written and spoken English. Located in European Union ArgoCD (GitOps) Kubernetes (Rancher) PostgreSQL, Kafka OpenTelemetry, Grafana, ELK Nice to have: Experience in medtech. Benefits In return, we offer: 100% remote, flexible work. Work with an experienced team of developers and continuous development of your hard and soft skills. Dev-friendly processes such as Continuous Integration, Continuous Delivery, Code Review and bug bashes. Long-term collaboration on challenging products (FinTech, B2B software, E-commerce and more). Here's what you can expect from the recruitment process: First, you'll meet with one of our recruiters to get to know each other better. If everything goes well, you'll have the opportunity to meet with the client during online interviews. Don't hesitate and apply right away! At Netguru, we're committed to creating an inclusive environment for everyone. If you require any disability-related adaptations during the recruitment process, please let us know. We're here to help!

🏢 Summary: Full-time freelance Regular DevOps Engineer role focused on building and maintaining cloud-native infrastructure for modern digital products. The position involves working with Azure-based environments, Kubernetes clusters, and observability stacks in a long-term project starting mid-July 2026. Engagement is remote within Poland with a minimum 6-month duration. 🗂️ Requirements: Located in Poland, Good command of English, Good command of Polish, Experience with Azure, Experience with ArgoCD, Experience with Kubernetes (Rancher), Experience with PostgreSQL, Experience with Kafka, Experience with OpenTelemetry, Experience with Grafana, Experience with ELK 📃 Skills: Azure, ArgoCD, Kubernetes, Rancher, PostgreSQL, Kafka, OpenTelemetry, Grafana, ELK 🏢 Description: Description Netguru is a trusted partner in digital commerce. The company helps leading brands modernize B2B solutions, marketplaces, and retail ecosystems. Since 2008, it has empowered businesses with cutting-edge technology, AI-powered personalization, and world-class engineering and design teams. A certified B Corporation®, Netguru is trusted by major brands including IKEA, VW, OLX, Delivery Hero, Żabka, Wolt, Careem, and Vinted. How freelancing works at Netguru? As a , you can choose what works well for you. You decide when, where, and how you work on projects and tasks. We match you with work that fits your skills. Plus, you have access to various opportunities across different industries and companies. That means you will not only gain more experience, but also develop various skills. But there's more. Netguru freelancers can benefit from full-time collaboration and really be a part of the team. So, are you ready to make an impact? Join Netguru, and let's build beautiful software together. Currently we are looking for a Regular DevOps Engineer Salary range (Regular): from 90 PLN/h Engagement: fulltime Working Hours: CET Start date: around mid July 2026 Project duration: minimum 6 months Requirements Good command of written and spoken English and Polish Located in Poland Azure experience ArgoCD (GitOps) Kubernetes (Rancher) PostgreSQL, Kafka OpenTelemetry, Grafana, ELK Nice to have: Experience in medtech. Benefits In return, we offer: 100% remote, flexible work. Work with an experienced team of developers and continuous development of your hard and soft skills. Dev-friendly processes such as Continuous Integration, Continuous Delivery, Code Review and bug bashes. Long-term collaboration on challenging products (FinTech, B2B software, E-commerce and more). Here's what you can expect from the recruitment process: First, you'll meet with one of our recruiters to get to know each other better. If everything goes well, you'll have the opportunity to meet with the client during online interviews. Don't hesitate and apply right away! At Netguru, we're committed to creating an inclusive environment for everyone. If you require any disability-related adaptations during the recruitment process, please let us know. We're here to help!

🏢 Summary: Full-time remote Frontend Developer role focused on building and optimizing modern web applications using ClojureScript in a 6-month project. The position involves functional programming, advanced state management, and integration with external libraries in a collaborative, CI/CD-driven environment. The role requires strong frontend engineering skills and performance-oriented development. 🗂️ Requirements: Native Polish or Polish at least B2+, English at least B2, Experience with ClojureScript, Knowledge of functional programming principles, Experience with re-frame and Reagent, Experience with EDN and Transit formats, Experience with clojure.spec for data validation, Experience with JavaScript interop and NPM integration, Experience with shadow-cljs or Leiningen, Experience with REPL-driven development, Experience with React rendering performance optimization, Experience with automated testing using cljs.test 📃 Skills: ClojureScript, re-frame, Reagent, EDN, Transit, clojure.spec, JavaScript, NPM, shadow-cljs, Leiningen, REPL, React, cljs.test, CI, CD 🏢 Description: Description Netguru is a trusted partner in digital commerce. The company helps leading brands modernize B2B solutions, marketplaces, and retail ecosystems. Since 2008, it has empowered businesses with cutting-edge technology, AI-powered personalization, and world-class engineering and design teams. A certified B Corporation®, Netguru is trusted by major brands including IKEA, VW, OLX, Delivery Hero, Żabka, Wolt, Careem, and Vinted. How freelancing works at Netguru? As a , you can choose what works well for you. You decide when, where, and how you work on projects and tasks. We match you with work that fits your skills. Plus, you have access to various opportunities across different industries and companies. That means you will not only gain more experience, but also develop various skills. But there's more. Netguru freelancers can benefit from full-time collaboration and really be a part of the team. So, are you ready to make an impact? Join Netguru, and let's build beautiful software together. Currently we are looking for a Frontend Developer. Salary range: up to 35€/h Engagement: fulltime Working Hours: 9-17CET Start date: 12.06.2026 Project duration: 6 months Requirements Are native Polish-speaker or have a good command of written and spoken Polish (at least B2+). Have a good command of written and spoken English (at least B2). Core: ClojureScript and functional programming principles (immutability, pure functions). State Management: Proficient in re-frame (Events, Subscriptions, Co-effects) and Reagent. Data & API: Expertise in EDN and Transit formats; data validation using clojure.spec. Interop: Hands-on experience with JS Interop and seamless integration of external NPM libraries. Tooling: Skilled in shadow-cljs (or Leiningen) and REPL-driven development. Engineering: React rendering performance optimization and automated testing with cljs.test. Benefits In return, we offer: 100% remote, flexible work. Work with an experienced team of developers and continuous development of your hard and soft skills. Dev-friendly processes such as Continuous Integration, Continuous Delivery, Code Review and bug bashes. Long-term collaboration on challenging products (FinTech, B2B software, E-commerce and more). Here's what you can expect from the recruitment process: First, you'll meet with one of our recruiters to get to know each other better. If everything goes well, you'll have the opportunity to meet with the client during online interviews. Don't hesitate and apply right away! At Netguru, we're committed to creating an inclusive environment for everyone. If you require any disability-related adaptations during the recruitment process, please let us know. We're here to help!

🏢 Summary: Full-time Senior DevOps Engineer role for a minimum 6-month project, focused on building and maintaining modern cloud-native infrastructure in a remote, EU-based setup. The position involves working with GitOps practices, Kubernetes environments, and observability stacks within experienced engineering teams. 🗂️ Requirements: Minimum 5 years of DevOps experience, Strong knowledge of ArgoCD and GitOps, Experience with Kubernetes and Rancher, Experience with PostgreSQL and Kafka, Experience with OpenTelemetry, Grafana, and ELK, Good command of written and spoken English, Located in the European Union 📃 Skills: ArgoCD, GitOps, Kubernetes, Rancher, PostgreSQL, Kafka, OpenTelemetry, Grafana, ELK 🏢 Description: Description Netguru is a trusted partner in digital commerce. The company helps leading brands modernize B2B solutions, marketplaces, and retail ecosystems. Since 2008, it has empowered businesses with cutting-edge technology, AI-powered personalization, and world-class engineering and design teams. A certified B Corporation®, Netguru is trusted by major brands including IKEA, VW, OLX, Delivery Hero, Żabka, Wolt, Careem, and Vinted. How freelancing works at Netguru? As a , you can choose what works well for you. You decide when, where, and how you work on projects and tasks. We match you with work that fits your skills. Plus, you have access to various opportunities across different industries and companies. That means you will not only gain more experience, but also develop various skills. But there's more. Netguru freelancers can benefit from full-time collaboration and really be a part of the team. So, are you ready to make an impact? Join Netguru, and let's build beautiful software together. Currently we are looking for a Senior DevOps Engineer Salary range (Regular): from 110 PLN/h Engagement: fulltime Working Hours: CET Start date: around mid July 2026 Project duration: minimum 6 months Requirements Good command of written and spoken English. Located in European Union Min. 5 years of experience ArgoCD (GitOps) Kubernetes (Rancher) PostgreSQL, Kafka OpenTelemetry, Grafana, ELK Nice to have: Experience in medtech. Benefits In return, we offer: 100% remote, flexible work. Work with an experienced team of developers and continuous development of your hard and soft skills. Dev-friendly processes such as Continuous Integration, Continuous Delivery, Code Review and bug bashes. Long-term collaboration on challenging products (FinTech, B2B software, E-commerce and more). Here's what you can expect from the recruitment process: First, you'll meet with one of our recruiters to get to know each other better. If everything goes well, you'll have the opportunity to meet with the client during online interviews. Don't hesitate and apply right away! At Netguru, we're committed to creating an inclusive environment for everyone. If you require any disability-related adaptations during the recruitment process, please let us know. We're here to help! Netguru collects and processes personal data in accordance with applicable data protection laws. If you are a European Job Applicant see the privacy notice for further details. View website View all jobs Help Accessibility Powered by Workable

🏢 Summary: Senior Backend Engineer (B2B, remote EU) role focused on designing and building scalable backend systems for processing large volumes of spare parts data. The position involves developing high-performance APIs, ETL pipelines, and distributed systems in cloud environments. The role also includes optimizing databases and system performance while ensuring security, scalability, and reliability. 🗂️ Requirements: Strong commercial experience with JVM languages (Java, Scala, or Kotlin), Experience with relational databases (PostgreSQL, MySQL), Experience with NoSQL databases (MongoDB), Experience processing and managing large datasets, Knowledge of scalable API design, Experience designing distributed systems, Experience building ETL pipelines, Experience with cloud platforms (AWS, GCP, or Azure), Knowledge of performance optimization and low-latency systems, Experience with database optimization (indexing, schema design, tuning), English C1 level, Based in the European Union 📃 Skills: Java, Scala, Kotlin, JVM, PostgreSQL, MySQL, MongoDB, SQL, NoSQL, ETL, AWS, GCP, Azure, APIs, DistributedSystems, Cloud, PerformanceOptimization, Indexing, SchemaDesign 🏢 Description: Description Netguru is a trusted partner in digital commerce. The company helps leading brands modernize B2B solutions, marketplaces, and retail ecosystems. Since 2008, it has empowered businesses with cutting-edge technology, AI-powered personalization, and world-class engineering and design teams. A certified B Corporation®, Netguru is trusted by major brands including IKEA, VW, OLX, Delivery Hero, Żabka, Wolt, Careem, and Vinted. Position: Senior Backend Engineer Contract: B2B – Remote (EU Only) Rate: up to 30 EUR/hour + 20 paid vacation days Language: English C1 Responsibilities Design and build scalable backend systems for processing large volumes of spare parts data Develop and maintain robust, high-performance APIs for data integration and access Build, optimize, and maintain ETL pipelines for data ingestion and transformation Process and manage large datasets in distributed environments Optimize system performance, latency, and throughput across backend services Improve database performance through indexing, schema design, and query optimization Collaborate with product managers, designers, and engineering teams to deliver scalable solutions Work closely with stakeholders to define and implement data-driven functionalities Ensure high standards of security, reliability, scalability, and maintainability Mentor and support other engineers as part of a senior-level engineering role Stay up to date with modern backend technologies, architecture patterns, and engineering best practices Requirements Tech stack & requirements Strong commercial experience with JVM-based languages such as Java, Scala, or Kotlin Solid experience with relational databases, including PostgreSQL and MySQL Experience working with NoSQL databases, preferably MongoDB Hands-on experience processing and managing large datasets Strong knowledge of scalable API design and backend architecture principles Experience designing distributed and high-performance systems Practical experience building ETL pipelines using standard data processing tools Experience with cloud platforms such as AWS, GCP, or Azure Strong understanding of performance optimization and low-latency systems Experience with database optimization, including indexing, schema design, and performance tuning Strong problem-solving and communication skills Senior-level mindset with the ability to mentor and support engineering teams English at C1 level Must be based in the European Union Benefits In return, we offer: 100% remote, flexible work; work with an experienced team of developers and continuous development of your hard and soft skills; dev-friendly processes such as Continuous Integration, Continuous Delivery, Code Review and bug bashes; long-term collaboration on challenging products (FinTech, B2B software, E-commerce and more). What will happen next? We would like to know you better, so we will invite you for a meeting with our recruiter. Next, you'll be asked to solve the task or invited to an interview and pair programming with one of our iOS Developers. Looking for a full-time job? Check out our and find out more about our open recruitment processes. If you need any disability-related adaptation at any step of the recruitment process – simply let the recruiter know! We'd be happy to help.

🏢 Summary: Senior Backend Engineer role (B2B, remote within EU) focused on designing scalable backend systems, high-performance APIs, and ETL pipelines for large-scale data processing in distributed environments. The position involves optimizing system performance, database structures, and cloud-based architectures while ensuring security, reliability, and maintainability. The offer includes long-term collaboration on complex digital products with flexible remote work and paid vacation. 🗂️ Requirements: Strong commercial experience with JVM languages (Java, Scala, or Kotlin), Experience with relational databases (PostgreSQL, MySQL), Experience with NoSQL databases (MongoDB), Hands-on experience with large datasets processing, Knowledge of scalable API design and backend architecture, Experience designing distributed, high-performance systems, Experience building ETL pipelines, Experience with cloud platforms (AWS, GCP, or Azure), Knowledge of performance optimization and low-latency systems, Experience with database optimization (indexing, schema design, tuning), Senior-level experience with mentoring capabilities, English C1 level, Must be based in the European Union 📃 Skills: Java, Scala, Kotlin, JVM, PostgreSQL, MySQL, MongoDB, ETL, AWS, GCP, Azure, SQL, NoSQL, CI, CD 🏢 Description: Description Netguru is a trusted partner in digital commerce. The company helps leading brands modernize B2B solutions, marketplaces, and retail ecosystems. Since 2008, it has empowered businesses with cutting-edge technology, AI-powered personalization, and world-class engineering and design teams. A certified B Corporation®, Netguru is trusted by major brands including IKEA, VW, OLX, Delivery Hero, Żabka, Wolt, Careem, and Vinted. Position: Senior Backend Engineer Contract: B2B – Remote (EU Only) Rate: up to 30 EUR/hour + 20 paid vacation days Language: English C1 Responsibilities Design and build scalable backend systems for processing large volumes of data Develop and maintain robust, high-performance APIs for data integration and access Build, optimize, and maintain ETL pipelines for data ingestion and transformation Process and manage large datasets in distributed environments Optimize system performance, latency, and throughput across backend services Improve database performance through indexing, schema design, and query optimization Collaborate with product managers, designers, and engineering teams to deliver scalable solutions Work closely with stakeholders to define and implement data-driven functionalities Ensure high standards of security, reliability, scalability, and maintainability Mentor and support other engineers as part of a senior-level engineering role Stay up to date with modern backend technologies, architecture patterns, and engineering best practices Requirements Strong commercial experience with JVM-based languages such as Java, Scala, or Kotlin Solid experience with relational databases, including PostgreSQL and MySQL Experience working with NoSQL databases, preferably MongoDB Hands-on experience processing and managing large datasets Strong knowledge of scalable API design and backend architecture principles Experience designing distributed and high-performance systems Practical experience building ETL pipelines using standard data processing tools Experience with cloud platforms such as AWS, GCP, or Azure Strong understanding of performance optimization and low-latency systems Experience with database optimization, including indexing, schema design, and performance tuning Strong problem-solving and communication skills Senior-level mindset with the ability to mentor and support engineering teams English at C1 level Must be based in the European Union Benefits In return, we offer: 100% remote, flexible work; work with an experienced team of developers and continuous development of your hard and soft skills; dev-friendly processes such as Continuous Integration, Continuous Delivery, Code Review and bug bashes; long-term collaboration on challenging products (FinTech, B2B software, E-commerce and more). What will happen next? We would like to know you better, so we will invite you for a meeting with our recruiter. Next, you'll be asked to solve the task or invited to an interview and pair programming with one of our iOS Developers. Looking for a full-time job? Check out our and find out more about our open recruitment processes. If you need any disability-related adaptation at any step of the recruitment process – simply let the recruiter know! We'd be happy to help.

🏢 Summary: Full-time remote Software Engineer role focused on building and optimizing advanced search solutions within a data-intensive product. The position involves designing scalable search algorithms, improving relevance and performance, and collaborating closely with product teams in a multi-stakeholder environment. B2B contract up to 38€/h for EU-based candidates. 🗂️ Requirements: EU residency, Availability for full-time (40h/week) B2B contract, Strong backend engineering experience, Proficiency in Kotlin, Experience with Go or Python, Experience with Solr, ElasticSearch or similar search technologies, Experience with data-intensive systems, Experience in multi-stakeholder environments 📃 Skills: Kotlin, Go, Python, Solr, ElasticSearch, CI, CD 🏢 Description: Netguru is a trusted partner in digital commerce. The company helps leading brands modernize B2B solutions, marketplaces, and retail ecosystems. Since 2008, it has empowered businesses with cutting-edge technology, AI-powered personalization, and world-class engineering and design teams. A certified B Corporation®, Netguru is trusted by major brands including IKEA, VW, OLX, Delivery Hero, Żabka, Wolt, Careem, and Vinted. How freelancing works at Netguru? As a , you can choose what works well for you. You decide when, where, and how you work on projects and tasks. We match you with work that fits your skills. Plus, you have access to various opportunities across different industries and companies. That means you will not only gain more experience, but also develop various skills. But there's more. Netguru freelancers can benefit from full-time collaboration and really be a part of the team. So, are you ready to make an impact? Join Netguru, and let's build beautiful software together. Rate: up to 38€/h (b2b contract only) Start date: 31/01/2026 End date: 25/01/2027 Full-time (40h/week) European Union based candidates only - our client's requirement due to internal policies and legal restrictions. Strong backend engineering skills with experience with client’s tech stack (Kotlin preferred, Go/Python valuable), nice to have: previous experience in Search/Ranking domains, particularly with Solr, ElasticSearch, or any related search technologies We are seeking a highly skilled and motivated Software Engineer to join our Client's talented Search team. As a key member of their technology division, you will play a crucial role in designing, implementing, and optimizing their search algorithms to enhance the user experience and ensure the accuracy and relevance of search results. In addition, we are looking for an individual with demonstrated experience in working with multi-stakeholder environments and handling high-demanding, data-intensive products. Your responsibilities will include: Playing an integral role within a dynamic team, solidifying your and your team's technical prowess to establish credibility Fostering a culture of innovation, actively encouraging the conception, creation, implementation, and deployment of sophisticated scalable solutions Posing thoughtful questions, participating in brainstorming sessions, and taking ownership of the product development process to foster a collaborative environment Experimenting with novel machine learning approaches to push the boundaries of search capabilities Collaborating closely with the product management team, ensuring alignment to construct the optimal product that resonates with and benefits our users Identifying and addressing performance bottlenecks through meticulous profiling, monitoring, and optimization of the search infrastructure for high-speed and low-latency responses Spearheading initiatives to enhance search quality through continuous refinement of query understanding mechanisms, and relevance models Requirements Demonstrated proficiency in Kotlin, showcasing a strong understanding of its core principles and capabilities. This includes the ability to write clean, efficient, and maintainable code while effectively utilizing Kotlin's features. Expertise in Go or Python, showcasing a deep comprehension of programming paradigms along with the skill to produce clean, efficient, and maintainable code in these widely-used languages. Experience with Solr, ElasticSearch, or similar search technologies that empower powerful indexing and searching capabilities, allowing you to create robust search functionalities within our applications. Benefits In return, we offer: 100-percent remote work; huge flexibility and variety of project to choose from - work the way you like; work with an experienced team of developers and continuous development of your hard and soft skills; a mentor who will assist you during your first days; dev-friendly processes such as Continuous Integration, Continuous Delivery, Code Review and bug bashes; long-term collaboration on challenging products (FinTech, B2B software, E-commerce and more).

🏢 Summary: Full-time freelance opportunity for a Regular or Senior Angular Developer to work remotely on modern digital commerce projects. The role involves building and optimizing frontend applications using Angular and related technologies within long-term engagements. The project starts around mid July 2026 and is planned for at least 6 months. 🗂️ Requirements: Currently located in the European Union, Good command of written and spoken English, Strong knowledge of Angular, Strong knowledge of TypeScript, Experience with RxJS, Experience with Astro, Experience with microfrontends architecture, Very good knowledge of Webpack, Knowledge of OAuth/OIDC, Understanding of web performance optimization 📃 Skills: Angular, TypeScript, RxJS, Astro, Microfrontends, Webpack, OAuth, OIDC, Performance, English 🏢 Description: Description Netguru is a trusted partner in digital commerce. The company helps leading brands modernize B2B solutions, marketplaces, and retail ecosystems. Since 2008, it has empowered businesses with cutting-edge technology, AI-powered personalization, and world-class engineering and design teams. A certified B Corporation®, Netguru is trusted by major brands including IKEA, VW, OLX, Delivery Hero, Żabka, Wolt, Careem, and Vinted. How freelancing works at Netguru? As a , you can choose what works well for you. You decide when, where, and how you work on projects and tasks. We match you with work that fits your skills. Plus, you have access to various opportunities across different industries and companies. That means you will not only gain more experience, but also develop various skills. But there's more. Netguru freelancers can benefit from full-time collaboration and really be a part of the team. So, are you ready to make an impact? Join Netguru, and let's build beautiful software together. Currently we are looking for a Regular and Senior Angular Developer. Salary range (Senior): from 98 PLN/h Salary range (Regular): from 70 PLN/h Engagement: fulltime Working Hours: CET Start date: around mid July 2026 Project duration: minimum 6 months Requirements Apply if you have/are: Currently located in European Union. Good command of written and spoken English. Angular, TypeScript, RxJS. Astro, microfrontends. Very good knowledge of Webpack. OAuth/OIDC, performance. Nice to have: Experience in medtech. Benefits In return, we offer: 100% remote, flexible work. Work with an experienced team of developers and continuous development of your hard and soft skills. Dev-friendly processes such as Continuous Integration, Continuous Delivery, Code Review and bug bashes. Long-term collaboration on challenging products (FinTech, B2B software, E-commerce and more). Here's what you can expect from the recruitment process: First, you'll meet with one of our recruiters to get to know each other better. If everything goes well, you'll have the opportunity to meet with the client during online interviews. Don't hesitate and apply right away! At Netguru, we're committed to creating an inclusive environment for everyone. If you require any disability-related adaptations during the recruitment process, please let us know. We're here to help! Netguru collects and processes personal data in accordance with applicable data protection laws. If you are a European Job Applicant see the privacy notice for further details. View website View all jobs Help Accessibility Powered by Workable

🏢 Summary: Full-time Senior Frontend Developer role focused on building and maintaining complex React applications within large production codebases. The project involves working with TypeScript, GraphQL APIs, and design systems, with strong emphasis on architecture, performance, and E2E testing. The position also requires effective use of AI coding tools to accelerate development. 🗂️ Requirements: Strong experience with TypeScript, Deep experience with React in complex applications, Experience with GraphQL APIs, Experience working with design systems, Strong knowledge of component architecture, Strong knowledge of state management, Strong knowledge of performance optimization, Experience writing and maintaining E2E tests, Experience working on large production codebases, Hands-on experience with AI coding tools 📃 Skills: TypeScript, React, GraphQL, E2E, AI, Copilot, Claude, CI, CD, Microfrontends, Accessibility, FeatureFlags, Performance, StateManagement, ComponentArchitecture, DesignSystems 🏢 Description: Netguru is a trusted partner in digital commerce. The company helps leading brands modernize B2B solutions, marketplaces, and retail ecosystems. Since 2008, it has empowered businesses with cutting-edge technology, AI-powered personalization, and world-class engineering and design teams. A certified B Corporation®, Netguru is trusted by major brands including IKEA, VW, OLX, Delivery Hero, Żabka, Wolt, Careem, and Vinted. How freelancing works at Netguru? As a , you can choose what works well for you. You decide when, where, and how you work on projects and tasks. We match you with work that fits your skills. Plus, you have access to various opportunities across different industries and companies. That means you will not only gain more experience, but also develop various skills. But there's more. Netguru freelancers can benefit from full-time collaboration and really be a part of the team. So, are you ready to make an impact? Join Netguru, and let's build beautiful software together. Currently we are looking for a Senior Frontend Developer. Salary range: 34€/h Engagement: fulltime Working Hours: CET Start date: asap Project duration: 1 year Requirements Apply if you have/are: Currently located in European Union. Good command of written and spoken English. Strong hands-on experience with TypeScript. Deep experience with React (complex applications, not only small components). Experience working with GraphQL APIs. Experience contributing to or working within a design system. Strong understanding of: Component architecture. State management. Performance optimization. Experience writing and maintaining end-to-end tests (E2E). Experience working on large, existing production codebases. Hands-on experience using of AI coding tools. Are comfortable using AI coding agents (e.g., Copilot, Claude, similar tools). Use AI effectively to accelerate implementation. Nice to have: Experience building or evolving large-scale design systems. Experience improving frontend performance at scale. Familiarity with accessibility (a11y) best practices. Experience with: Micro-frontend architectures. Feature flagging systems. AI-assisted UX or chat-based interfaces. Benefits In return, we offer: 100% remote, flexible work. Work with an experienced team of developers and continuous development of your hard and soft skills. Dev-friendly processes such as Continuous Integration, Continuous Delivery, Code Review and bug bashes. Long-term collaboration on challenging products (FinTech, B2B software, E-commerce and more). Here's what you can expect from the recruitment process: First, you'll meet with one of our recruiters to get to know each other better. Then, you'll participate in a pair programming session with one of our tech experts. If everything goes well, you'll have the opportunity to meet with the client during online interviews. Don't hesitate and apply right away! At Netguru, we're committed to creating an inclusive environment for everyone. If you require any disability-related adaptations during the recruitment process, please let us know. We're here to help!

🏢 Summary: Part-time freelance role on a 2–3 month project to rebuild an advanced payment system with new providers and features. The work involves developing and maintaining a microservices-based system using modern cloud and container technologies. The position includes collaboration with a small IT team and standby support every fourth weekend. 🗂️ Requirements: Fluency in Polish and English, Location in Europe, Experience with Node.js, Experience with React, Experience with Next.js, Experience with Kubernetes, Experience with GCP, Experience with CI/CD pipelines, Knowledge of microservices architecture, Experience with payment integrations (Stripe, TPAY, Autopay), Experience with Argo and Grafana, Experience with Jira and Confluence 📃 Skills: Node.js, React, Next.js, Kubernetes, GCP, Argo, Grafana, Confluence, Jira, CI/CD, Microservices, Stripe, TPAY, Autopay, English, Polish 🏢 Description: Description Netguru is a trusted partner in digital commerce. The company helps leading brands modernize B2B solutions, marketplaces, and retail ecosystems. Since 2008, it has empowered businesses with cutting-edge technology, AI-powered personalization, and world-class engineering and design teams. A certified B Corporation®, Netguru is trusted by major brands including IKEA, VW, OLX, Delivery Hero, Żabka, Wolt, Careem, and Vinted. How freelancing works at Netguru? As a , you can choose what works well for you. You decide when, where, and how you work on projects and tasks. We match you with work that fits your skills. Plus, you have access to various opportunities across different industries and companies. That means you will not only gain more experience, but also develop various skills. But there's more. Netguru freelancers can benefit from full-time collaboration and really be a part of the team. So, are you ready to make an impact? Join Netguru, and let's build beautiful software together. Start date: asap Project length: 2-3 months Engagement: 0.25% FTE (part-time - up to 40h monthly) Working hours: between 9am-5pm + standby every 4th weekend Salary: 100PLN/h (B2B contract- negotiable) Candidates must be located in Europe and speak fluent Polish. About the project: Advanced payment system, now being rewritten with new providers and features. System uses Node.js, React, GCP, Kubernetes, and involves 2-5 IT staff. Requirements Fluency in Polish and English . Node.js React Next.js 13 (planned) Kubernetes GCP Argo Grafana Confluence Jira CI/CD microservices Stripe TPAY Autopay Benefits 100% remote, flexible work; work with an experienced team of developers and continuous development of your hard and soft skills; long-term collaboration on challenging products What will happen next? We will invite you for a meeting with our recruiter. Next, you'll participate in the technical interview. Curious to learn more about working as a Netguru freelancer? All the information you need is here: . Looking for a full-time job? Check out our and find out more about our open recruitment processes. If you need any disability-related adaptation at any step of the recruitment process – simply let the recruiter know! We'd be happy to help. Don't hesitate and apply right away.