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Javascript Developer l Performance Engineer - 0268


Javascript Developer l Performance Engineer

  • Primary Location:
  • Contract Type:
  • Employment Basis:

3 extra days of vacation


Internal International Opportunities

Health insurance

Mobile allowance

Choose your Operating System

Learning and Development

Fully provisioned kitchen

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The Role...

Our Site Performance team are responsible for the creation, maintenance & execution of regular production load tests for Paddy Power Betfair.

You will support and evolve our internal & external load injection platforms to support high volume load testing & development activities.
You will become an expert in the load generation tools, the monitoring systems deployed against our estate, analysis of test runs and the ability to communicate this to the wider teams.

What You'll be Doing... 

• Execute integrated performance tests against web-based applications and back-end components.
• Creation & maintenance of load test suites for &
• Analyse test data and metrics, document test results, identify report performance issues and risks.
• Feed performance testing results into capacity planning decisions.
• Support internal & external load injection infrastructure.
• Identify & implement automation opportunities.

What We're Looking For... 

• Previous experience of Loadrunner / Performance Centre / Stormrunner load (2+ years).
• Previous experience of Javascript frameworks/libraries (2+ years).
• Excellent verbal communication and interpersonal skills.
• Ability to communicate technical results to an audience of varying technical competencies.
• Awareness / experience in using agile methodologies.
• Ability to analyse performance metrics and identify bottlenecks in the system.
• Ability to understand complex architectures and how new products/changes may impact existing performance
• Previous exposure to performance testing (2+ years).
• Strong understanding of network, database, server operations as they relate to load testing.
• Desire to learn about new products and keep abreast of new product developments.
• Experience of cloud technologies (private and public).

What You'll Get in Return... 

  • An opportunity to execute concurrent tests simulating load beyond production traffic peaks.
  •  An opportunity to work in a dynamic fast paced environment
  •  You will be a key part of our program to convert our current test assets in to Javascript (TruWeb)
  •  An opportunity to work with several development teams and get exposure to different architectures & implementations.
  •  To be a single point for of contact in Porto for the Dublin based Site Performance team.
  •  Potential travel to Dublin, London and Cluj.
  • Our passion has helped us take the betting industry by storm. So we think it's only fair that you enjoy excellent rewards.  

The Fun Stuff 

  • Competitive salary and bonus scheme
  • 25 days annual leave
  • Games room
  • Snacks and drinks
  • Sharesave scheme 
  • Career progression
  • Global mobility 
  • Discounted gym memberships
  • In office shower and locker rooms
  • Health and well being classes (Yoga, bootcamp, etc.)
  • Free breakfast 
  • In office masseuse, nutritionist and ergonomist 

The Boring Stuff 

  • Health insurance
  • Dental insurance
  • Lunch credit
  • Health assessments
  • Travel allowance
  • Own your own laptop scheme
  • Thousands of online learning courses
  • Mobile allowance
  • Employee Assistance Programme 

There is more, but we won't go on... 

Close map
Avenida de Camilo 96, Porto, Portugal, 4300-492

This is who we are

Blip is a Tech and Innovation Hub with a strong knowledge in software development, mobile apps, web platforms and retail applications for betting and gaming.

We are part of Flutter Entertainment – one of the World´s Largest Groups in the bookmaking industry, with an annual revenue of around 2 billion euros. The Code we develop, powering brands such as PaddyPower, Betfair and Fanduel, is used by over 5 million people in more than 100 countries and we are in the API Billionaire Club alongside players such as Google, Facebook and Twitter.

The Missing Piece

At Blip people always come first, that’s why we believe we can complement each other. You are our missing piece to be a better company, to build a better business for everybody, including ourselves.On the other hand, we are your missing piece, giving you the flexibility, work life balance and the tech challenge you´re lacking.
It all starts here!

This is your Challenge

  • Delivering product at scale for over 5 million customers, 99,9% of transactions in less than a second
  • Our systems process more than 7 million transactions every day (more than all the European stock exchanges combined)
  • Deliver high transitional products, serving more than 2.5Bn calls a day
  • Diverse and up to date technical landscape to explore, leverage and innovate
  • The products you’ll develop will comply with ambitious uptime targets: less than 50 minutes downtime expected per year
  • Continuous Integration, Deployment and Testing