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  • Senior Fullstack Developer
    New

    Senior Fullstack Developer

    15 100 - 21 500 PLN/monthGross per month - Permanent
    Type of work
    Full-time
    Experience
    Senior
    Employment Type
    Permanent
    Operating mode
    Hybrid

    Tech stack

      ReactJS

      regular

      TypeScript

      regular

      .Net

      regular

      JavaScript

      regular

      AWS

      nice to have

      React Native

      nice to have

    Job description

    Online interview



    About us

    At Auctane, we are united by a passion to help sellers — wherever they are, however they operate — fulfill the promises they make to consumers. The Auctane mission is to fuel commerce through exceptional delivery. We make it possible for businesses to meet the ever rising expectations of their customers, and we make the world smaller and more accessible to consumers everywhere. Auctane brands enable hundreds of thousands of merchants to annually deliver billions of products — over $200 billion worth — to customers around the globe. And Auctane is just getting started.

    Auctane is a team of shipping and software experts with a passion for helping merchants move their ideas, dreams and innovations around the globe. The Auctane family includes ShipStation, ShipWorks, ShipEngine, ShippingEasy, Stamps, Endicia, Metapack, GlobalPost, and Packlink. Our partners include Amazon, UPS, USPS, eBay, BigCommerce, Shopify, WooCommerce, and Walmart.


    Our values

    About the role

    As a Senior Fullstack Developer, you will play a key role in the design, development, and maintenance of our web applications using ReactJS and .NET. You will be responsible for driving technical decisions, mentoring team members, and ensuring the architectural integrity of our solutions. This role requires deep technical expertise, strong problem-solving skills, and the ability to work across teams to deliver high-impact solutions. 

    This role is ideal for someone who thrives in a fast-paced environment, enjoys mentoring others, and takes initiative in driving technical excellence.


    Salary range for this role: 15 100- 21 500 PLN gross/ month


    What will you be doing?

    • Design, develop, and maintain scalable web applications using ReactJS and .NET.
    • Lead technical discussions and contribute to architectural decisions.
    • Optimize web applications for performance, scalability, and security.
    • Mentor and support junior developers, fostering a culture of learning and growth.
    • Collaborate with cross-functional teams, including Product, UX/UI, and DevOps, to drive innovation and best practices.
    • Conduct and oversee code reviews, ensuring adherence to best practices and high-quality standards.
    • Troubleshoot and resolve complex issues across the full stack.
    • Stay updated with industry trends and proactively introduce improvements.


    What are we looking for?

    • 5+ years of experience in web application development with ReactJS and .NET (in total).
    • Deep understanding of JavaScript (ES6+), TypeScript, and modern front-end frameworks.
    • Strong expertise in designing and integrating RESTful APIs.
    • Proven experience in architectural decision-making and system design.
    • Experience with source control systems and branching strategies (e.g., Git).
    • Proficiency in testing frameworks such as Jest, React Testing Library, or Cypress.
    • Strong ability to communicate complex technical concepts to both technical and non-technical stakeholders.
    • Self-driven with a proactive approach to problem-solving.
    • Optional Qualifications
    • Bachelor's degree in Computer Science or a related field.
    • Experience with AWS services and cloud architecture.
    • Knowledge of modern build tools and deployment strategies.
    • Experience with mobile application development using React Native.
    • Familiarity with DevOps practices and CI/CD pipelines.


    Tech Stack

    • ReactJS, JavaScript (ES6+), TypeScript
    • C# .Net
    • React Native (optional)
    • Amazon Web Services (optional)
    • C# .Net
    • Amazon Web Services


    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

    🏢 Nice office in Zielona Gora (free drinks, snacks…) or new office in Wrocław (in both locations 3 days remotely, 2 days in the office/per week)

    ⚖️ 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


    15 100 - 21 500 PLN/month

    Gross per month - Permanent

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