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April 8, 2026

Senior Fullstack Engineer (Node.js/React)

Senior • Remote

19,000 - 25,000 USD

Krakow, Poland

About the role

You will need to be an expert in backend and frontend development with a thorough understanding of the technologies involved. Strong backend and frontend skills where you can demonstrate your ability to apply these technologies, as well as deploy and maintain them will be crucial to success. 

Technologies we work with:Typescript, JavaScript, Node.js, React, REST APIs, React, AWS, Terraform, C#


Responsibilities:

  • Designing, writing, testing functionalities for a backend system written in TypeScript and a frontend system written in React & TypeScript

  • Deploying and maintaining microservices in AWS using Terraform 

  • Maintaining system on production used by consumers from several European countries

  • Debugging issues

  • Scoping and assessing the complexity of features

  • Participating in sprint planning, daily sprints and meetings with product owners for grooming new features

  • Recruiting and mentoring team members

  • Collaborating with other team members and teams that depend on the functionalities that you develop

Required qualifications:

  • 5+ years of production software development experience in a fullstack role 

  • Strong understanding of software engineering principles, testing, data structures and algorithms

  • Solid hands-on experience in technologies such as Typescript or C#

  • Strong knowledge of DBMS like PostgreSQL, DynamoDB

  • Expertise of REST APIs

  • Strong hands-on experience of CI&CD processes

  • Proficiency of OO design patterns, SOLID principles and Clean Code

  • Computer Science degree

  • Able to work with Agile methodologies such as SCRUM and/or Kanban

  • Good communication and collaboration skills

  • Self-motivation, proactive attitude

  • Proficiency in English


Nice to have:

  • Some experience or interest in developing Cloud and Infrastructure solutions with AWS and CI/CD processes supported by tools like Docker, Kubernetes, Jenkins, Terraform, CircleCI, GitlabCI, Datadog, etc.

  • Working experience with one of the object-oriented and/or functional languages such as C#, Elixir, C++, Java, Golang, Erlang, Python, Kotlin