Senior Front End Developer

Symphony Anywhere

Symphony Solutions is a cloud transformation company headquartered in Amsterdam, with offices in the Netherlands, US, Ukraine, Macedonia, and Poland. Symphony Solutions recently celebrated 10 years of continuous service, and we attract many people with our open, welcoming culture and Dutch-inspired environment.

We are a company with a difference as we maintain a strong ethical culture and keep company values at the level of interpersonal and client-oriented relationships. Our philosophy is to establish close and strong relations with every client, employee, and candidate to succeed in our main directions (e.g. PHP, Java, C#, C++, SAP, Salesforce/, iOS, Android, BlackBerry).

Customer and project description:

Working with us, you’ll be at the heart of the technological revolution of one of the world’s most trusted betting and gaming companies. We deal with projects ranging from mobile Casinos to online Sportsbooks and everything in between. The software you write will process 500 online bets per second, accommodate 20 million users, and process 160 terabytes a day. You can be sure there are many more challenges waiting for you!


  • Commercial experience with JavaScript
  • Ability to do code reviews, pair programming
  • Knowledge and experience working with JavaScript (ES5 and ES6+), CSS3, HTML5, Node.js, React (or similar library)
  • Familiar with RESTful APIs, bundling libraries, CI/CD toolchains like Gitlab, DVCS like GIT
  • Desirable to have knowledge of web performance optimization, Jest/Enzyme and web security
  • Ability to understand complex technical and business problems and propose pragmatic solutions working with engineering teams, product owners and SRE is critical to success in this position
  • Practical experience of delivering change in a global, fast-moving, multi-vendor environment supported by an Agile delivery framework
  • Experience of building front-end components that are reusable and easy-to-plug
  • Strong interpersonal skills enabling the ability to comfortably communicate with key stakeholders, including product owners, technical leads and engineering teams
  • Willingness to take part in the on-call rotation providing third line of support across the team
  • Experience with driving complex digital solutions for global business where the customer experience is seamless across multiple channels


You, as a Front End Developer, will take part in many SDLC steps:
Designing – brainstorm with the team about technologies and solutions
Prototyping – do R&D, write prototypes and battle test ideas
Implementation – implement final solution
Testing – write unit tests and e2e tests for a user journey you’ve implemented

You will be:

  • Collaborating with experienced engineers to implement sport betting and gaming platform that has low latency and is globally scalable
  • Researching and developing high performing, customizable web components and solutions
  • Optimizing of cross-browser web components
  • Supporting diverse clients from high powered desktop to tablets and mobile phones
  • Taking part in the on-call rotation providing third line of support across the team

The perks of being a Symphonian

Laptop as a gift
Symphony Academy
Medical insurance
NEO Program
Loyalty Program
Team Buildings
20 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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