UI Developer

Job id:  20683
Job location: 

Lisbon, PT

Colt provides network, voice and data centre services to thousands of businesses around the world, allowing them to focus on delivering their business goals instead of the underlying infrastructure. 


We're looking for an experienced and motivated UI Designer to join us!


This role is responsible to design and build capability into the user interfaces of 2 award winning B2B customer-facing Network On Demand applications, working in an Agile/Kanban model.  The primary focus will be to ensure that our UIs are extensible, maintainable, and efficient, whilst building cool new features. Sometimes this means we have to go and re-engineer some parts. 


It will also be necessary test the water with new capabilities, and so there will be a need to develop spikes/proof-of-concepts to evaluate front-end tools and approaches to ensure the evolution of the platform makes best use of new technologies and techniques. 




  • Advising on how the UI should evolve. 
  • Estimating size of development tasks 
  • Development of front-end of customer facing online applications. 
  • Contributing to work prioritization 
  • Suggesting and analysing different approaches for building solutions. 
  • Continuously evaluating the codebase for opportunities to improve through refactoring. 
  • Running spike/proof-of-concept exercises to test a concept, new technology or technique. 
  • Mentoring junior developers 



Next to great soft skills and the willingness to work in an international environment, collaborating with colleagues across Colt, we are looking for someone with experience in the following:


  • AngularJS and Angular 2+ 
  • Javascript/Typescript 
  • REST Microservices 
  • Single Page Application development 
  • Web sockets 

Nice to have:  

  • Simple RESTful microservice mocking with Node.js 
  • Selenium 



What we offer:

Colt is a growing business that is investing in its people. We offer skill development, learning pathways and accreditation to help our people perform at their best, regardless of role and location. 

In addition to offering competitive salaries and incentive plans, a range of benefits and local rewards packages are offered to staff. Colt recognises the importance of a work life balance.

Some benefit examples are:

  • Flexible working and relaxed dress code
  • Two days annually to spend on volunteering opportunities
  • Access to a virtual business school for on-going learning
  • Business mentoring
  • Private health insurance cover and the option to join Colt's company pension scheme
  • Daily meal allowance (10€)


We strongly encourage candidates of all different backgrounds and identities to apply. We are committed to making Colt an inclusive and supportive workplace

Job Segment: User Experience, Developer, Data Center, Application Developer, Programmer, Technology