(Senior) Backend Kotlin Engineer - Freelance

🏢 Summary: B2B contract for an experienced Python Developer to build and enhance scalable digital solutions using Django and AI integrations in a hybrid setup (Warsaw). The role focuses on delivering high-quality, maintainable code and collaborating with senior teams on advanced, technology-driven projects. Engagement from April to October 2026 with potential full-time collaboration. 🗂️ Requirements: Minimum 3 years of commercial coding experience, Strong knowledge of Python, Strong knowledge of Django, Experience with AI frameworks (OpenAI, LangChain) or FastAPI integrations, Experience with automated testing using Pytest, Ability to write clean, efficient, maintainable code, Polish language proficiency at C1 level, Good command of English 📃 Skills: Python, Django, OpenAI, LangChain, FastAPI, Pytest, Docker, Linux, Vue, Quasar, CICD 🏢 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. Location: preferably Warsaw, Poland Hybrid work - at least once per week from Client's office in Warsaw Contract: B2B Rate: up to 100 PLN/h (NET) Start date: 13/04/2026 End date: 09/10/2026 Must have: Polish C1 Requirements Min. 3 years of full-time coding experience Solid, hands-on knowledge of Python and Django Curiosity about or experience with AI frameworks (OpenAI, LangChain, FastAPI integrations). A knack for writing code that’s fast, clean, and built to last Comfortable testing with Pytest Good interpersonal and teamwork skills - BEASTs together strong Fluent Polish and good command of English NIce to have: Experience working with Vue JS and Quasar. Solid skills with Docker and Linux The ability to write clear, concise documentation that others will actually read. Knowledge of CI/CD practices and tools. Experience with performance optimization - because speed matters. Benefits Receive a monthly allowance for individual benefits, adjusted to your country and lifestyle. Use a dedicated yearly fund for learning, courses, or certifications. Join a team delivering high-impact digital solutions for internationally recognized clients. Contribute to advanced, technology-driven projects that shape modern industries. Take ownership — your role goes far beyond routine development tasks. Use your expertise to guide clients toward effective, scalable solutions. Enjoy a balanced pace of work — we value precision and thoughtful execution over speed. Collaborate daily with senior professionals and domain experts. Access multiple career development paths and growth opportunities.

🏢 Summary: Part-time freelance role focused on post-editing AI-generated content for web application interfaces in Ukrainian (with English), ensuring linguistic accuracy and alignment with product and localization standards. The work is fully remote within the EU and involves daily collaboration in a product-driven environment. Engagement runs until June 2026 with flexible 1–3 hours per day commitment. 🗂️ Requirements: Native-level Ukrainian and C2 English, EU residency, Experience with Translation Management Systems (TMS), Understanding of web application interface language nuances, Expertise in content design principles, Experience working with product designers, product managers, and frontend engineers, Availability for daily commitment (1–3 hours) until June 2026 📃 Skills: TMS, Lokalise, Localization, ContentDesign, WebApps, English, Ukrainian, AI, Agile, CI 🏢 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. Our Client is looking for several people to support them with freelancer for post-editing AI-generated content in their native languages: Ukrainian (English also required) You don't have to know all these languages, just one + English :) Contract: B2B English: C2 Part-time: A daily commitment is required: the engagement is typically around 1–2 hours per day , but for more demanding localization projects, this can increase to 3 hours per day. 100% remote Project length: until June 2026 You must be located in European Union Requirements Familiarity with Translation Management Systems (TMS), as this is where AI-generated content is automatically added every day A deep understanding of language nuances specific to web application interfaces; Proven expertise in content design principles Experience collaborating within cross-functional product teams, specifically with product designers, product managers, and frontend engineers Nice to have: Proficiency with localization software, with Lokalise being explicitly preferred; A strong grasp of content formatting standards within these localization tools Benefits In return, we offer: Flexibility: 100% remote work. Professionality: dev-friendly processes, like Continuous Integration and Code Review, work in line with Agile methodology. Diversity: projects from various industries like fintech, healthcare, insurance, or education. Growth: work with a team of experts and continuous development of your hard and soft skills. Knowledge: knowledge sharing sessions, internal knowledge base. 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.

🏢 Summary: Offer for a Backend Kotlin Engineer to work full-time on a long-term remote project within CET hours, building backend solutions in event-driven architectures. The role involves developing and maintaining Kotlin-based services, collaborating with DevOps, and working in CI/CD-driven environments. The project duration is at least 6 months with potential for extended collaboration. 🗂️ Requirements: Good command of written and spoken English, Location within European Union, Commercial experience with Kotlin, Experience with Kubernetes, Experience with event-driven architectures, Experience with Kafka, Experience with CI/CD for backend and mobile applications, Experience in DevOps collaboration, Understanding of certification and compliance processes 📃 Skills: Kotlin, Kubernetes, Kafka, CI/CD, DevOps, 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 Backend Kotlin Engineer Salary range (Regular): from 70 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 Kotlin Kubernetes Event-driven systems (Kafka) CI/CD for mobile and backend applications DevOps collaboration Certification and compliance processes 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 assignment for a (Senior) Fullstack Developer with Node.js to build and maintain scalable backend systems and APIs in a remote, EU-based setup. The role focuses on developing distributed, microservices-based applications using modern cloud and DevOps practices. The contract is for 3 months with possible extension, starting in July. 🗂️ Requirements: Strong proficiency in Node.js, Strong proficiency in TypeScript, Experience with REST APIs, Experience with WebSocket-based applications, Hands-on experience with Strapi, Hands-on experience with Medusa.js, Experience with message brokers, Experience with asynchronous architectures, Knowledge of SQL databases, Knowledge of NoSQL databases, Experience with microservices, Experience with distributed systems, Knowledge of system design, Knowledge of scalability and performance optimization, Proficiency with Git, Proficiency with Docker, Experience with CI/CD pipelines, Experience with AWS or Azure, Understanding of software architecture and design patterns, English level C1 📃 Skills: Node.js, TypeScript, REST, WebSockets, Strapi, Medusa.js, RabbitMQ, AMQP, Kafka, SQL, NoSQL, Microservices, Docker, Git, CI/CD, AWS, Azure 🏢 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. We are looking for a (Senior) Fullstack Developer with Node.js Freelance assignment : full-time, B2B contract. Start: July Duration: 3 months with the possibility of extension Working hours: CET Location: Remote (based in European Union) Salary brackets: €26-35/h Requirements Strong proficiency in Node.js and TypeScript. Experience building and maintaining REST APIs and WebSocket-based applications. Hands-on experience with Strapi and Medusa.js. Experience with message brokers and asynchronous architectures (RabbitMQ, AMQP, Kafka, etc.). Solid understanding of SQL and NoSQL databases. Experience with microservices and distributed systems. Knowledge of system design , scalability, and performance optimization. Proficiency with Git , Docker , and CI/CD pipelines. Experience with AWS , Azure or other cloud platforms. Strong understanding of software architecture, design patterns, and best practices. Strong problem-solving and communication skills. Written and spoken English at C1 level Benefits In return, we offer: Flexibility: 100% remote work. Professionality: dev-friendly processes, like Continuous Integration and Code Review, work in line with Agile methodology. Diversity: projects from various industries like fintech, healthcare, insurance, or education. Growth: work with a team of experts and continuous development of your hard and soft skills. Knowledge: knowledge sharing sessions, internal knowledge base. 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.

🏢 Summary: Part-time freelance role on a 2–3 month project to rewrite and enhance an advanced payment system with new providers and features. Work involves developing and maintaining microservices-based solutions using Node.js, React, and cloud-native infrastructure on GCP and Kubernetes. The position includes flexible remote work with scheduled weekday availability and periodic weekend standby. 🗂️ Requirements: Fluency in Polish and English, Location in Europe, Commercial experience with Node.js, Experience with React, Experience with Next.js, Experience with Kubernetes, Experience with GCP, Experience with CI/CD pipelines, Experience with microservices architecture, Experience with payment integrations (Stripe, TPAY, Autopay), Availability between 9am–5pm and standby every 4th weekend 📃 Skills: Node.js, React, Next.js, Kubernetes, GCP, Argo, Grafana, Confluence, Jira, CICD, Microservices, Stripe, TPAY, Autopay, English, Polish 🏢 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.

🏢 Summary: Freelance Mid and Junior Python Developer role on a full-time B2B contract for 8–12 months, contributing to AI-driven healthcare products focused on unified health profiles, doctor capacity optimization, and healthcare marketplaces. The role involves building modern backend and/or frontend solutions with strong use of AI-assisted coding tools. 100% remote work with collaborative engineering practices and long-term product development. 🗂️ Requirements: English fluency (minimum B2), Strong knowledge of Python, Knowledge of JavaScript or TypeScript, Active use of AI coding tools in daily development, Solid software engineering fundamentals, Familiarity with modern frontend or backend development, Technical education or participation in programming competitions 📃 Skills: Python, JavaScript, TypeScript, AI, Cursor, Claude, Copilot, ChatGPT, Gemini, 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. We are looking for AI savvy Mid and Junior Python Developers to join our Client's project . More details: Freelance assignment Full-time B2B contract Start date: asap Duration: 8-12 months (with possibility of extension) Working hours: 9-17 CET Salary brackets for Junior: up to 24 EUR/h Salary brackets for Mid: up to 34 EUR/h You would join one of three projects that our Client currently has: Project #1: One universal health profile for users and their family — structured data, AI summaries, visit context and proactive guidance — moving from fragmented records to an insights product that helps people live longer, healthier lives. Project #2 : Solving the doctor capacity crisis. The mission: help doctors handle 30% more patients with higher quality, not burnout. Project #3: The marketplace where patients start healthcare: the default entry point for any service (doctor, clinic, procedure, lab) across channels — including agentic search platforms. Requirements English fluency (at least B2) . Python + Javascript/Typescript. AI Tooling like Cursor, Claude code, Copilot, ChatGPT / Gemini for day to day work . Ideal Candidate: AI-Savvy: Not necessarily AI researcher, but a developer who actively uses AI tools to code faster and better. Solid foundations in software engineering principles. Language-agnostic mindset. Familiarity with modern frontend or backend development. High learning speed and coachability. Interest in AI-assisted coding as a learning and productivity tool. Technical education and/or exposure to demanding programming contests (e.g. ICPC, Google Code Jam–style competitions, national or university-level programming Olympiads). AI fluency is not required at this level — curiosity and responsible use are. Benefits In return, we offer: 100% remote 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 invited to an interview and pair programming with one of our Developers. If everything goes well, you will meet the client at the final interview. 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: Freelance role focused on post-editing AI-generated content for web application interfaces in one of the following languages: Romanian, Polish, Ukrainian, or Portuguese, with English proficiency required. The work involves using Translation Management Systems to refine localized content in collaboration with cross-functional product teams. This is a remote, part-time B2B contract running until June 2026 for candidates located in the EU. 🗂️ Requirements: Proficiency in Romanian or Polish or Ukrainian or Portuguese, English level C2, Location within European Union, Experience with Translation Management Systems (TMS), Understanding of web application interface language nuances, Knowledge of content design principles, Experience working with product designers, product managers, and frontend engineers 📃 Skills: TMS, Localization, Lokalise, ContentDesign, WebApps, AI, 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. Our Client is looking for several people to support them with freelancer for post-editing AI-generated content in their native languages: Romanian, Polish, Ukrainian, Portuguese (English also required) You don't have to know all these languages, just one + English :) Contract: B2B English: C2 Part-time: A daily commitment is required: the engagement is typically around 1–2 hours per day , but for more demanding localization projects, this can increase to 3 hours per day. 100% remote Project length: until June 2026 You must be located in European Union Requirements Familiarity with Translation Management Systems (TMS), as this is where AI-generated content is automatically added every day A deep understanding of language nuances specific to web application interfaces; Proven expertise in content design principles Experience collaborating within cross-functional product teams, specifically with product designers, product managers, and frontend engineers Nice to have: Proficiency with localization software, with Lokalise being explicitly preferred; A strong grasp of content formatting standards within these localization tools Benefits In return, we offer: Flexibility: 100% remote work. Professionality: dev-friendly processes, like Continuous Integration and Code Review, work in line with Agile methodology. Diversity: projects from various industries like fintech, healthcare, insurance, or education. Growth: work with a team of experts and continuous development of your hard and soft skills. Knowledge: knowledge sharing sessions, internal knowledge base. 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.

🏢 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.

🏢 Summary: Full-time freelance Ruby on Rails Developer role for a long-term B2B project in the commerce industry. The position involves building and integrating APIs and contributing to scalable backend solutions in a remote, EU-based setup. The engagement offers flexible work conditions within CET hours. 🗂️ Requirements: Proficient in Ruby, Strong knowledge of Ruby on Rails, Experience with API integrations, Availability for full-time work in CET hours, Fluent English (C1), EU residency, Strong problem-solving skills, Experience working directly with clients 📃 Skills: Ruby, Rails, API, AWS, Microservices, Git, CI, Agile 🏢 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. We are looking for RoR Developer for our client from commerce industry: Required skills : Ruby on Rails, API, AWS, microservicers (*desired). We offer: 100% remote work, flextime & flexplace, dev-friendly processes, long-term collaboration. Freelance assignment : full-time, long-term cooperation, B2B contract, CET working hours. Salary brackets: 20-25 eur/h. Location: only EU candidates . Requirements Proficient knowledge of Ruby programming language, Ruby on rails framework. Experience with API integrations development. Highly developed communication skills required. Worked closely with clients and maintained positive relationships with them. A high sense of responsibility and accountability for work. Strong problem solving skills, curiosity to dig deep, debug and solve issues. An attitude not just to ship small patches, but finding the root cause and fixing them. Experience with microservice environment would be an advantage Experience with AWS would be an advantage Knowledge of English (C1) , spoken and written. Benefits In return, we offer: Flexibility: 100% remote work. Professionality: dev-friendly processes, like Continuous Integration and Code Review, work in line with Agile methodology. Diversity: projects from various industries like fintech, healthcare, insurance, or education. Growth: work with a team of experts and continuous development of your hard and soft skills. Knowledge: knowledge sharing sessions, internal knowledge base. 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.

🏢 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!