Senior Fullstack Developer @

6 days ago


Zielona Góra Wrocław, Czech Republic Auctane Poland Sp. z o.o. Full time

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

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.

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.

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.

,[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.] Requirements: ReactJS, .NET, JavaScript, TypeScript, REST API, Git, Jest, React Testing Library, Cypress, C#, Degree, AWS, React Native, DevOps, CI/CD Pipelines, Amazon Web Services Additionally: Sport subscription, Training budget, Private healthcare, Lunch card, International projects, Volunteer day, Referral Fee, Employee Assistance Program, Language classes, Medical insurance, International team, Company events, Free coffee, Bike parking, Free snacks, Modern office, In-house trainings, Free beverages, In-house hack days, No dress code.

  • Zielona Góra, Wrocław, Czech Republic Auctane Poland Sp. z o.o. Full time

    Auctane Poland Sp. z o.o. is a dynamic company that empowers sellers to fulfill their promises to consumers.We are seeking a Senior Fullstack Developer and Tech Leader to join our team.Job DescriptionThe ideal candidate will have a strong background in web application development using ReactJS and .NET, with experience in designing and integrating RESTful...


  • Zielona Góra, Wrocław, Czech Republic Auctane Poland Sp. z o.o. Full time

    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...


  • Remote, Kraków, Białystok, Wrocław, Czech Republic Grape Up Full time

    Proficiency in: Python for Web Development, SQL (PostgreSQL), JavaScript/TypeScript, React + ReduxBasic knowledge of Redux-Saga and Redux ToolkitKnowledge of REST API and GraphQLExperience with some AWS services (e.g. ECS, Lambda, S3, Aurora RDS, SQS, DynamoDB)Knowledge of Terraform/CDKStrong knowledge of software development methodologies and agileGood...


  • Zielona Góra, Wrocław, Czech Republic Auctane Poland Sp. z o.o. Full time

    At Auctane Poland Sp. z o.o., we are united by a passion to help sellers achieve their goals. We believe in the importance of delivering exceptional experiences to our customers, and we make it possible for businesses to meet the ever-rising expectations of their clients.Auctane is a team of shipping and software experts with a passion for helping merchants...


  • Zielona Góra, Wrocław, Czech Republic Auctane Poland Sp. z o.o. Full time

    What are we looking for?3+ years of experience in web application development using ReactJS and .Net or Java technologiesProficiency in ReactJS, including React Hooks, Redux, and component-based architecture.Solid understanding of HTML5, CSS3, and JavaScript (ES6+).Experience with source control systems and branching strategies (e.g. Git)Experience with...


  • Wrocław, Województwo dolnośląskie, Czech Republic Capgemini Polska Sp. z o.o. Full time

    Transform technology and advance your career with Capgemini Polska Sp. z o.o.About the RoleWe are seeking a highly skilled Senior Fullstack Software Engineer to join our team in shaping the future of engineering services.About YouTo be successful in this role, you will have:Proven experience in developing software solutions using various technologies such as...


  • Zielona Góra, Wrocław, Czech Republic Auctane Poland Sp. z o.o. Full time

    OverviewAuctane Poland Sp. z o.o. is a dynamic company united by a passion to help sellers fulfill the promises they make to consumers.We strive to fuel commerce through exceptional delivery, making it possible for businesses to meet the ever-rising expectations of their customers.About the RoleAs a Fullstack Developer at Auctane Poland Sp. z o.o., you will...


  • Remote, Wrocław, Warszawa, Kraków, Czech Republic Holisticon Connect Full time

    You might be the perfect match if you are/have:3+ years of work experience as a Full Stack Developer;Proven experience with React, Typescript and most used frameworks/libraries (react-hook-form, react-router, RTK, Redux etc.),Experience with .NET Core/.NET 5+ and most used frameworks/libraries (ASP .NET, EF, MediatR, Polly, Serilog, SignalR, Swagger...


  • Zielona Góra, Wrocław, Czech Republic Auctane Poland Sp. z o.o. Full time

    What are we looking for?Bachelor's degree in Computer Science, Information Technology, or a related fieldIn-depth knowledge and proficiency in SQL (Structured Query Language)Proficiency in managing SQL database systemsStrong understanding of database design principles, including normalization, indexing, and data modelingExperience in database administration...


  • Zielona Góra, Wrocław, Czech Republic Auctane Poland Sp. z o.o. Full time

    What are we looking for?Experience in designing and developing advanced software systems.Strong proficiency in object-oriented programming concepts, algorithms, and data structures.Continuous focus on enhancing skills in software architecture design and product development.Strong orientation toward task automation to save time and effort.Implementation of...


  • Zielona Góra, Wrocław, Czech Republic Auctane Poland Sp. z o.o. Full time

    What are we looking for?2+ years of experience in web application development using ReactJS.Proficiency in ReactJS, including React Hooks, Redux, and component-based architecture.Solid understanding of HTML5, CSS3, and JavaScript (ES6+).Experience with source control systems and branching strategies (e.g. Git)Experience with RESTful APIs and third-party...


  • Zielona Góra, Wrocław, Czech Republic Auctane Poland Sp. z o.o. Full time

    What are we looking for?Proven experience in web application development using ReactJS.Proficiency in ReactJS, including React Hooks, Redux, and component-based architecture.Solid understanding of HTML5, CSS3, and JavaScript (ES6+).Experience with source control systems and branching strategies (e.g. Git)Experience with RESTful APIs and third-party libraries...


  • Zielona Góra, Wrocław, Czech Republic Auctane Poland Sp. z o.o. Full time

    Auctane Poland Sp. z o.o. is a dynamic and innovative company that specializes in shipping and software solutions.We are currently seeking a highly skilled Senior Software Engineer to join our team, who will play a key role in designing, developing, and maintaining advanced software solutions.The ideal candidate will have experience in leading projects,...


  • Zielona Góra, Wrocław, Czech Republic Auctane Poland Sp. z o.o. Full time

    Job DescriptionWe are seeking a highly skilled Database Engineer to join our team at Auctane Poland Sp. z o.o.About the RoleThe successful candidate will be responsible for designing, implementing, and maintaining efficient database systems that meet our business needs. This includes ensuring data integrity, availability, and performance.This role involves...


  • Zielona Góra, Wrocław, Czech Republic Auctane Poland Sp. z o.o. Full time

    Job DescriptionWe are seeking a highly skilled Senior Database Systems Engineer to join our team. As a key member of our IT department, you will be responsible for the design, implementation, and maintenance of our relational database systems.Key Responsibilities:Develop database schemas, tables, and indexes to optimize performance and ensure data...


  • Remote, Wrocław, Czech Republic Rite NRG Full time

    Rite NRG is a dynamic outsourcing technology company that empowers businesses through innovative software solutions.We are seeking a skilled Senior Full-stack Architect to join our team. As a key member, you will be responsible for leading technical teams and mentoring developers.About the RoleDevelop high-performance, secure fullstack systems using a...


  • Remote, Wrocław, Gdańsk, Rzeszów, Czech Republic Xebia sp. z o.o. Full time

    7+ years of experience in creating web solutions,3+ years of experience in backend technologies (Node.js or Python),experience with Vue.js,experience with AWS (S3, Lambda, Api Gateway),strong ability to design scalable and efficient systems, with a focus on architectural decision-making,proven experience in building and maintaining serverless...


  • Wrocław, Białystok, Warszawa, Łódź, Czech Republic Godel Technologies Europe Full time

    Must have:Strong background in Python development, preferably with 4+ years of solid commercial developmentEnhance client databases or design from scratchCloud experience (AWS preferably)Familiarity with React + Typescript – understanding of basic concepts and minimal commercial experienceReadiness to work on Windows OSGood English communication skills, at...


  • Remote, Kraków, Wrocław, Warsaw, Czech Republic N-iX Full time

    Must-Have:5+ years of experience with React or Next.JS and TypescriptAt least 3 years of experience with Java for developing APIs and web applications.Exposure to or experience with Scala, or eagerness to learn itAWS 3+ years practical experiencePrevious experience working with Optimizely is a mustDeep practical knowledge of AWS Kafka,  AWS...


  • Zielona Góra, Wrocław, Czech Republic Auctane Poland Sp. z o.o. Full time

    As a trusted technical authority, you will become the primary point of contact for all engineering-related matters.Extensive experience in designing, building, and deploying solutions in AWS with an unwavering focus on quality.Comprehensive expertise in designing and delivering low-latency, high-throughput API systems using Domain-Driven Design (DDD)...