Fullstack Software Engineer @ Auctane Poland Sp. z o.o.

What are we looking for? 2+ years of experience in web development with ReactJS and .NET (in total). Proficiency in ReactJS, including React Hooks, Redux, and component-based architecture. Solid understanding of JavaScript (ES6+) and TypeScript.. Experience with source control systems and branching strategies (e.g., Git). Understanding of RESTful APIs and third-party library integrations. Exposure to testing frameworks such as Jest, React Testing Library, or Cypress. Ability to work independently on assigned tasks while collaborating effectively in an Agile team. Strong communication and organizational skills.  Optional Qualifications Bachelor's degree in Computer Science or a related field. Experience with AWS services. Familiarity with single-page app architecture and design patterns. Knowledge of build tools like Webpack or Vite. Experience with responsive and mobile-first design principles. Tech Stack ReactJS, JavaScript (ES6+), TypeScript C# .Net React Native (optional) Amazon Web Services (optional) Mobile applications development technology (Kotlin, React Native etc.) (optional) Amazon Web Services (optional) About us At Auctane, we are united by a passion to help businesses deliver — whatever their size, wherever they are, and however they operate. We make it possible for businesses to meet the ever-changing requirements of their industry and customer expectations. Auctane products enable hundreds of thousands of businesses to annually mail and ship billions of items — over $200 billion worth — to recipients around the globe. The Auctane family of mailing and shipping software products includes ShipStation, Stamps.com, ShipStation API, Endicia, Metapack, GlobalPost, Packlink, and Return Rabbit. Our partners include Amazon, UPS, USPS, eBay, BigCommerce, Shopify, WooCommerce, and Walmart. Our values Win as One. Delight Customers. Deliver Great Outcomes.  About the role As a Fullstack Developer, you will contribute to the development and maintenance of our web applications using ReactJS and .NET. You will collaborate with Product and Design teams to implement high-quality features and ensure the best user experience. This role requires strong problem-solving skills, the ability to work independently on assigned tasks, and a desire to grow in a dynamic team environment. What do we offer? 🗓️ Annual Salary Review: We are reviewing the salaries of all our teams annually in order to evaluate an increase according to individual performance and the business results. 📙 Personal Training Budget. Up to 7.000 PLN/year training budget (certifications, conferences attendance, etc.) to invest in your professional development. We want to help you improve your technical skills, feel involved in the product community, and develop your soft skills to lead teams and manage other stakeholders. 🌅 Up to 30 days of vacation per year (additional days are granted along with seniority at AUCTANE). 💙 Up to 500 PLN/year to match your NGO donations We are happy to support your initiatives by duplicating the amount donated. 💜 Lunch card 😊 Volunteer day. You can take 1 day off per year in order to participate in volunteering activities 🔗 Referral Fee  We need your support in hiring top-class talent We offer a referral bonus of 4k-20k PLN, depending on the complexity of the role and the hiring process. 👩‍⚕️We have an Employee Assistance Program with psychological assistance free of charge. 🗺️ Languages classes every week. Thirsty for knowledge? Learn a new language by joining our free English/Spanish/German classes. You can connect and enjoy taking up a new language or improving your current skills with one of our great instructors. 🏥 Free private medical insurance 📄 Attractive life insurance 🏐 Gym membership co-financing ⚖️ Great work-life balance We offer a flexible work schedule and will do our best to adapt to your personal situation. Working in a fast-paced environment can be intense, but that doesn’t mean you shouldn’t enjoy your free time 💜 An inclusive and upbeat work environment Leave your suit behind... we’re a t-shirt and converse kind of place More importantly, our company culture promotes diversity and inclusion. The personality and opinions of each of our team members are important and valid, and we aim to offer all employees a safe environment where they can be themselves and thrive. 🌍 A cross-cultural atmosphere We are a truly international team of 20 nationalities that speak 10 languages. Our company language is English and all internal communication and company-wide meetings are in English. 🏟️ Company events Work hard, play hard We do our best every day, even at our regular team-building events.  📺 Internal and external training, free access to online training platforms such as Linkedin Learning 🏠 Possibility to work in a home-office using equipment provided by AUCTANE, or in our office prepared in accordance with all safety requirements. Do you want to know a little bit more about the team? Please, don’t hesitate to reach out to Amazing Auctane-PL and our Instagram ,[Develop and maintain web applications using React and .NET., Implement and integrate RESTful APIs with front-end components., Optimize applications for performance, scalability, and security., Collaborate with product managers, UX/UI designers, and other developers to deliver high-quality features., Write clean, efficient, and maintainable code with comprehensive documentation., Conduct code reviews and participate in team discussions to ensure adherence to best practices., Troubleshoot and resolve issues across the application stack., Stay updated with industry trends and best practices.] Requirements: React, C#, .NET, JavaScript, Git, REST API, Testing, TypeScript, AWS, Amazon Web Services, React native, Cypress Tools: . Additionally: Sport subscription, Training budget, Private healthcare, Lunch card, International projects, Free coffee, Bike parking, Free snacks, Modern office, In-house trainings, Free beverages, In-house hack days, Free parking, No dress code.