Senior Frontend Software Engineer


Symphony is seeking a Front-end Software Engineer, with expert Javascript knowledge, who has experience developing rich, high-performance, browser-based Javascript applications. You'll be involved in the design and implementation of a javascript-based, enterprise-class messaging application, including client-based end to end encryption and related security in the browser. We use TypeScript extensively and Chrome wrapper / webkit for native integration.


Many of the teams in the Symphony Stockholm office work on Symphony Meetings (real-time voice, video and screen sharing communications). You will take the lead on the development of our Meetings front-end.

  • Identify, establish and communicate best practices for front-end engineering
  • Participate in design and code reviews
  • Work with Product Designers to design and implement the next generation of Symphony’s Meeting products
  • Build efficient and reusable front-end abstractions and systems
  • Identify and address performance bottlenecks 


  • Ability to write high-performance, reusable code for UI components
  • Experienced in Object Oriented design (SOLID)
  • Aware of but not reliant on JavaScript Frameworks (we use React/Redux )
  • Experience from working with TypeScript desirable
  • Experience with backbone.js, angular.js, node.js and similar technologies desired but not required
  • Experience from developing real-time communication applications and/or working with audio and video devices would be a big plus
  • Passion for performance debugging and benchmarking
  • BS or MS degree in Computer Science or a related technical field desirable


Symphony transforms the way users communicate effectively and securely with a single workflow application. Forging a new path in the industry, Symphony is designed to help individuals, teams and organizations of all sizes improve productivity, while meeting complex data security and regulatory compliance needs. Symphony was founded in October 2014 and is headquartered in Palo Alto, CA, with offices in New York, Hong Kong, Singapore, Tokyo, Stockholm, Sophia-Antipolis and London. Symphony has raised roughly $460 million from the world’s largest financial institutions and recognized investors such as Bank of America - Merrill Lynch, Barclays, BNP Paribas, Citibank, Goldman Sachs, JP Morgan Chase, Credit Suisse, Deutsche Bank, HSBC, UBS, Société Générale as well as Google.

We’re looking for top-notch talent to join our team to help us change the way the world communicates. If you have the skills and savvy to work with a world-class team and an appetite for game-changing disruption, we want to hear from you! 


  • Regional specific competitive benefits
  • Build your own Benefits (BYOB) perk
  • Fully stocked kitchen and catered or reimbursed lunches
  • Many other fun and exciting benefits and activities!


  • Competitive salary
  • Bonus Plan
  • Benefits and Perks vary based on location.

Symphony reserves the right of ownership for all unsolicited resumes submitted for this requisition and is not responsible for any fees associated with unsolicited resumes.

Note: If considered for a position you will be subject to a criminal background check. A conviction is not an automatic bar to employment. Each case will be considered on its own merits. The nature of the offense, the date of the offense, the surrounding circumstances, the relevance of the offense to the position(s) applied for, and any pattern of offenses may, however, be considered.

Any information provided to us will be processed by Symphony in compliance with applicable data privacy laws and regulations, including but not limited to the EU General Data Protection Regulation (GDPR) or the California Consumer Privacy Act of 2018 (CCPA). Please refer to our Candidate Portal Policy attached for further information about how Symphony processes your personal data, Symphony’s legal basis for such processing, and the rights that you have with respect to your personal data that Symphony processes. For any questions you may have in this regard, please contact

Read Full Description
Confirmed 20 hours ago. Posted 30+ days ago.

Discover Similar Jobs

Suggested Articles