All offersKrakówJSSenior React Engineer
Senior React Engineer

Senior React Engineer

Type of work
Employment Type
Permanent, B2B
Operating mode

Tech stack


Job description

Online interview

About Appliscale: 

Appliscale is an independent Technology Consultancy that specializes in digital, bespoke, and tailor-made systems. As full-cycle engineering consultants, we deliver the most impactful cloud-based software and build products that solve real problems. Our end-to-end software solutions include business analysis, project evaluation, frontend/backend architecture design, development, deployment, and maintenance.

We operate at the cutting edge of technology, exploring, transforming, scaling, and optimizing the way software businesses engineer their digital products. Our expertise spans experience strategy, digital product innovation, and solutions' scalability and security.

About the role

Our client is a global games publisher with games that reach millions of players every day. This global reach presents exciting technical challenges. As an Appliscale engineer, you will work with our client on new and existing technologies, helping to create innovative solutions to overcome the challenges that serving a global audience presents.

You will be part of the international team developing and maintaining all the game publishers' global websites. These websites serve millions of monthly users and are pivotal platforms for engaging with players. As a result, there is a strong demand for high-quality and impactful designs that will allow the creation of unique user experiences and capture the distinctive characteristics of various game titles.

The role will require at least 5+ years of experience in commercial software development. While game development experience is not required, it would do no harm if you have it! 


  • Working in a highly collaborative and agile environment with cross-functional team members to translate business requirements, designs, and wireframes into inspiring user experiences and technical solutions.
  • You will build responsive, high-performance, modern web solutions with web frameworks based on React and Typescript
  • You will design and optimize the client side of the applications ecosystem that uses multiple protocols and paradigms to communicate.
  • Unit, component & performance testing, and debugging the code to ensure that developed solutions run effectively at all times.
  • Participating in project meetings to identify, evaluate, and implement modern software engineering best practices into the product development process.

Required qualifications:

  • Minimum 5 years of experience in React/Typescript and CSS
  • Experienced with Test Automation tools (e.g. Playwright, BrowserStack, SonarQube).
  • Know-how of REST API design
  • Strong knowledge of frontend architecture, design patterns, and best practices for performance optimization and cross-browser compatibility.
  • Strong understanding of software engineering principles, testing, data structures, and algorithms.
  • Able to work with Agile methodologies such as SCRUM and/or Kanban.
  • Good communication and collaboration skills.
  • Self-motivation, innovation, and accountability to work in a fast-paced environment.
  • Proficiency in English.

Nice to have:

  • Exposure to CMS systems such as Contentstack or Sanity
  • Experience with Netlify
  • Working experience with Node.js.
  • Some experience or interest in CI/CD pipelines built with Jenkins and Docker containers

Why work with us?

We are a group of curious and motivated technologists dedicated to building excellent products that have a lasting impact on users. We offer plenty of opportunities to gain solid experience and share expertise while working in full-stack, distributed teams in a range of businesses like Gaming, PropTech, AdTech, FinTech, LegalTech, or ML/AI from startups, scale-ups to Fortune 500 companies located across the USA, Asia, and Europe. This is how we do it.

Flat structure

We elevate each employee’s responsibility and his/her taking ownership. You take the lead and pursue your passion. 


Autonomy and ownership over projects! Small teams and project management support planning and communication around project milestones. Collaboration and collective creativity over formal rules-based KPIs for performance.


We network to get a broader perspective and build relationships - you get to hear what exciting challenges people are solving in their projects or what kind of passions or hobbies are there to share a conversation.

Knowledge sharing

We create spaces for sharing - various internal knowledge sharing initiatives exist to connect smart people growing in the same direction. 


You may change a project or work with a different technology etc. You have a bunch of opportunities and your own responsibility to take the lead on your growth!


We communicate openly; we share candid feedback. We build on trust, so innovation naturally happens!

Remote first

There is no difference if you work from home or the office. We focus on productivity, not hours and constant communication on Slack!


Timesheet gets filled in automatically, the onboarding process works online, a bot books a parking spot for you or reminds you about internal knowledge-sharing initiatives. We love improvements like that!

Partnering with the Client

Everyone is a consultant actively engaged in ongoing discussions with our Clients regarding project scope, understanding the context for a solution to deliver a great experience to future users.