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Web Developer Javascript Libraries

Job based in Barcelona (Spain), Wrocław, (Poland) or Céret (France)

About us

Opti Digital helps publishers to improve their online advertising revenue by offering custom consulting and proprietary technology to maximise their income, monetising ad inventory at best. We make available our expertise in programmatic advertising to digital media publishers in order to optimise monetisation of content, classified, service, forums and e-commerce websites. 

Digital Advertising industry is growing fast with many challenges and opportunities for innovations. We love working on projects offering innovative solutions to our clients.

Job description

The mission of the Javascript Developer will be to develop Opti Digital technologies with success. We have many challenging projects to sustain our company growth and develop new business units.

Some projects you might be involved in:

  • Opti Digital publisher smart tags javascript libraries
  • Optimizations to improve page speed, ads performance
  • Implementation of new ad formats
  • Integration of third party libraries from Google, Amazon, Prebid.js
  • Artificial intelligence used to automate tags integration
  • Real time reporting/analytics system
  • Support and collaboration with our sales team for the integration of new customers Level 2 technical support for publishers 

Essential skills

  • Strong experience in Javascript
  • Strong experience in HTML, CSS, Document Object Model, web browsers, HTTP
  • Experience using web browsers developer tools
  • Experience working with frameworks: Vuejs, others Javascript frameworks and tools
  • You like building robust Javascript libraries which will be distributed on millions of users
  • You are familiar with: Git, JIRA, OOP, Webpack
  • You love OOP and writing clean code along standards
  • Fluent in written and spoken English for team work
  • Positive attitude and good communication
  • Proactivity and attention to detail

Appreciated skills

  • Experience in digital advertising industry

Experience and studies

  • 5+ years of experience in Javascript development 
  • Computer sciences degree

Job advantages

  • Indefinite contract and full time job
  • Competitive salary
  • Private health insurance
  • Flexible work organization. Possibility to do remote work some days of the week
  • International team (office in Barcelona, Spain – Céret, France and Wrocław, Poland)
  • In-house trainings and hack-days 
  • Team buildings and events in the offices
  • Employee referral bonus

Tools we use

  • Git / Github
  • Integration tests
  • Agile, Scrumban
  • Jira
  • REST API, microservices
  • Docker
  • Google Cloud (BigQuery), MySQL
  • Google Ad Manager
  • Google Data Studio


Sébastien Moutte

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