Senior Full Stack React+Node.js+AWS

Symphony Anywhere

About customer and project:

Graphyte is a UK-based start-up SaaS company selling their services to large gambling and betting operators, which they (gaming clients) integrate with websites and mobile apps to offer personalized content to their users. Their main product, Graphyte Recommend, is the only recommendation platform for the iGaming industry.
It uses AI to provide ultra-personalized recommendations for bettors, much the same way Netflix provides entertainment program recommendations to their viewers. Graphyte receives a subscription fee from their clients, who in turn, increase user engagement and retention.

Developing back office, frontend widgets and backend API for it for a start-up with a SaaS personalization platform for the betting and gaming industry.

Job Requirements:


  • 5+ years (React, NodeJS, TypeScript, JavaScript, ES6)
  • OOP and SOLID principles knowledge
  • Understanding of asynchronous development and data security principles
  • Experience with Git
  • Ability to write readable, well-documented code
  • Experience with NoSQL databases (DynamoDB or MongoDB)
  • Experience of using Test Frameworks – Unit and Performance Testing
  • Working in Agile development environment
  • English level – Upper intermediate


  • Experience with JIRA, Confluence
  • Experience in gambling or online gaming
  • Knowledge of Web UI frameworks (React)
  • Experience with serverless and AWS ecosystem


  • New features development within existing product
  • Communicating with customer
  • Resolving technical problems as they rise
  • Bug fixing of newly developed features
  • Writing Unit tests and integration tests
  • Scrum ceremonies participation

The perks of being a Symphonian

Laptop as a gift
Symphony Academy
Medical insurance
NEO Program
Loyalty Program
Team Buildings
30 days of vacation
Check all benefits ➔

What is Symphony Solutions?

Symphony Solutions is a Cloud Transformation company headquartered in Amsterdam that operates across seven offices and worldwide. We develop solutions in Healthcare, Betting and Gaming, Logistics, Marketing, Retail, Banking and Finance, IT, and other.

13 years

on the market

7 offices

in 6 locations

Virtual office

Symphony Anywhere

Why Symphony Solutions could be
a good choice for you:

We are Anywhere. Symphony Anywhere virtual office discovers talent worldwide! With a hybrid model of work and Workation, choose when and where to work, while we provide the tools.

We are experts. Meet and work with top industry leaders in iGaming, Cloud, Agile, and more. We focus on building rapport, bringing forth our expertise, and delivering value to clients.

We disrupt. We embrace the future and contribute to it. In our diverse pool of projects, we work with visionaries that strive to disrupt the market and create solutions with impact.

We are a community. Symphonians build up the foundation for our core beliefs and values, committed and dedicated to the cause, they have passion and drive that embraces and lifts you up.

We learn. Symphony Solutions creates an environment for you to thrive and grow as an expert. We provide opportunities for your professional growth with Symphony Academy and more.

We are Agile! Symphony Solutions is all about Agile, and we mean it! We bring the Agile philosophy to every aspect of our work and set our clients on their Agile transformation journey.

So, you have applied. What’s next?

—  Oleg Chekan / Head of Pre-Sale / Service Delivery Manager
Relax, ask Yourself what is important for You and what You like. Try to combine all of the above, and then You have Your answer.
— Oleg Chekan / Head of Pre-Sale / Service Delivery Manager
—  Sanja Jovanovikj / Web Developer
Symphony is more than a company, it is a family, way of life, way of working. Nobody cares more for their employees than Symphony does.
— Sanja Jovanovikj / Web Developer
—  Oleksandr Hrechnikov / Lead React Software Engineer / Tech Lead
Enthusiasm is mighty, and shared team enthusiasm is much more powerful. And doing things with passion always results in outstanding achievements.
— Oleksandr Hrechnikov / Lead React Software Engineer / Tech Lead
—  Martin Kubelka / QA Engineer
I enjoy the team work and the sense of ownership that each and every member of our team has. At the same time, people are really cooperative and we constantly challenge ourselves.
— Martin Kubelka / QA Engineer
—  Oksana Yaroshko / Service Delivery Manager
I’m lucky to be surrounded by the best inspirers, teachers and friends. I’m always impressed with how my colleagues grow, open up and find their own way in this journey.
— Oksana Yaroshko / Service Delivery Manager
—  Slawomir Umpirowicz / Business Analyst
What I like the most is the focus on Agile-based methodologies. It is not just a declaration or a theory. It is a daily practice in Symphony.
— Slawomir Umpirowicz / Business Analyst
—  Filip Kudron / QA Engineer
The only thing that surprised and keeps surprising me is how friendly all the people I’ve met in Symphony are. In every project I joined, we had a great team!
— Filip Kudron / QA Engineer


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