Mercer | Mettl I/O: An All-In-One Project-Based Assessment Platform For Recruitment And L&D Of Coders

Introducing Real-World Coding Projects - Hire Programmers For All Major Roles and Technologies


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A Role-Based Coding Projects Platform with Unmatched Capabilities

An All-in-one Solution

An all-in-one solution for all major roles and technologies

Insightful Reports

Real-time, in-depth code analytics with a wide array of parameters

Fully Auto-Graded

Evaluated using fully auto-graded pre-built test-cases

We Support All Major Roles And Technologies

We Offer A Comprehensive Coding Environment For Developers, QA Engineers, Data Scientists, and Many More Roles

Front-end Developer

Front-end developers are assessed on their ability to:

  • Design web pages using HTML, CSS and JavaScript
  • Use CSS libraries such as BootStrap and preprocessors such as Sass, LESS and Stylus
  • Work with JavaScript frameworks such as Angular, React and Vue
  • Implement responsive design as needed
  • Test and debug front-end code to ensure all elements are in place
  • Use RESTful Services/APIs

Project Environment : Eclipse Theia

We support all major front-end technologies:

Back-end Developer

Back-end developers are assessed on their ability to:

  • Develop and code the back-end business logic
  • Create functional APIs
  • Implement and use different algorithms and data structures
  • Design and optimize database queries
  • Implement different programming paradigms
  • Work on advanced language-based frameworks

Project Environment : Eclipse Theia

We support all major back-end technologies:

Full-stack Developer

Full-stack developers are assessed on their ability to:

  • Combine front-end and back-end code
  • Work on both client and server applications
  • Create and consume APIs
  • Work with SQL/NoSQL databases
  • Implement various architectures such as MVC
  • Write unit tests for all tiers of applications

Project Environment : Eclipse Theia

We support all major technologies for full-stack developers:

Data Scientist

Data scientists are assessed on their ability to:

  • Extract, clean, transform and load data sets
  • Wrangle and explore data
  • Identify the underlying relationships or dependencies
  • Visualize data for easier understanding
  • Predict future trends or forecast a drift based on trends from prior data
  • Determine data's pattern or motive
  • Uncover anomalies in data

Project Environment: JupyterLab

We support all major technologies for data scientists:

DevOps Engineer

DevOps Engineers are assessed on their ability to:

  • Work on Linux systems and perform Linux scripting
  • Automate infrastructure using configuration management tools
  • Manage and maintain source codes
  • Perform continuous integration and testing
  • Virtualize and work with containers

Project Environment: A web-based terminal

We support all major technologies for DevOps Engineers:

Assess Hands-on Programming Capabilities with Our Coding Projects Platform

We Have Years Of Experience In Helping Organizations Hire and Develop Coders


The turnaround time has been fantastic from day one till now. It has been two years now and we have had no complaints on the turnaround time of account managers from Mercer | Mettl. We started with discussing the online assessment tool. Later on, we went on to enquire about other products and services that they must be providing.

Sweta Mishra

Director, HR

Assess All Major Coding Skills Through Our Technical Questions And Simulators


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Why We Are The Best!

Universal coverage of technical skills

Support for Front-end, Back-end, Database, Data science and all major coding roles

Fully auto-graded

Evaluated using fully auto-graded pre-built test-cases

Robust architecture

A robust and scalable cloud-based platform

Detailed reporting

In-depth code analytics with wide parameters covered in the reports

Code completion

Faster coding enabled by contextual code completion and parameter information

Debugging

Easier debugging with visibility of the state of code variables

Mercer | Mettl is the Partner of Choice for 4000+ Brands