All offersKrakówJSSenior Engineer
Senior Engineer

Senior Engineer

Type of work
Employment Type
B2B, Permanent
Operating mode

Tech stack

    Test Automation
    nice to have
    nice to have

Job description

Online interview

About Appliscale: 

Appliscale is an independent Technology Consultancy which specialises 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 come from business analysis, through to project evaluation, to frontend/backend architecture design and deployment.

We operate at the cutting edge of technologies, exploring, transforming, scaling and optimising the way software businesses engineer their digital products. Our expertise spans from experience strategy, digital product innovation to 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. 

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 various frameworks, languages, and micro-frontend concepts,
  • You will design and optimise 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:

  • Strong knowledge of frontend architecture, design patterns, and best practices for performance optimisation and cross-browser compatibility.
  • Strong understanding of software engineering principles, testing, data structures, and algorithms
  • Minimum 5 years experience in Javascript/Typescript/CSS and React
  • Exposure to CMS systems such as Contentstack or Sanity is a bonus
  • Experienced with Test Automation tools (e.g. Playwright, BrowserStack, SonarQube)
  • Know-how of REST/GraphQL APIs,
  • Understanding of OO design patterns, SOLID principles, and Clean Code,
  • 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:

  • Working experience with Node.js
  • 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.

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, legal tech 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 rowing 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.