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Working with Amazon AppStream 2.0

Working with Amazon AppStream 2.0

What is Amazon AppStream 2.0 ?

Ever wanted to serve your business applications directly through an internet browser? Do you want a powerful graphical computing and rendering environment directly accessible? AppStream 2.0 increases the possibilities while providing a secure, efficient and scalable environment for your users.

Amazon AppStream 2.0 is a fully managed non-persistent application and desktop streaming service that provides users with instant access to Windows desktop applications from anywhere on any device.

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Corexpert Achieves AWS DevOps Competency Status

Corexpert Achieves AWS DevOps Competency Status

LYON, September 09, 2020Corexpert is pleased to announce the Amazon Web Services (AWS) DevOps Competency status.

This designation recognizes that Corexpert provides a holistic approach to Devops implementation and that it has a proven track record of implementations of Devops tools.

This competency furthermore proves to our customers that the quality and calibre of our AWS-specialist consultancy is of the highest possible standard.

Corexpert has namely a proven customer success with specific focus on Continuous Integration & Continuous Delivery, Monitoring Performance and Infrastructure as Code.

“This AWS DevOps Competency is an important achievement in Corexpert’s journey” said Alexis Dagues CEO.

“This latest competency alongside our accreditation to deliver Well Architected Reviews and the SAP Competency is a statement that our team is dedicated to helping companies achieve their technology goals by leveraging the agility, breadth of services, and pace of innovation that AWS provides.”


About AWS

AWS is enabling scalable, flexible, and cost-effective solutions from startups to global enterprises. To support the seamless integration and deployment of these solutions, AWS established the AWS Competency Program to help customers identify Consulting and Technology APN Partners with deep industry experience and expertise.


About Corexpert

Corexpert is a cloud-native company with 14 years of experience. AWS Advanced Consulting Partner and Value-Added Reseller. The company joined TeamWork Group (in 2017) and deploy AWS competency in all of its 18 locations world-wide. With a strong expertise on SAP workloads, Big-Data, Web stacks and massive migration to AWS, Corexpert and TeamWork can deliver globally.

Corexpert – freshly elected APN Training Partner by AWS

Corexpert – freshly elected APN Training Partner by AWS

Lyon, France, September 03, 2020/ Corexpert – APN Training Partner

Corexpert which sustains and integrates solutions on AWS Cloud Platform since 2010 is pleased to announce the new APN Training Partner agreement with AWS.

As IT professionals with high AWS cloud skills we have a proven and reliable history in technical trainings. We are now proud to further expand this training and learning opportunities through the APN Training Partner Program.

We will thus convey our expertise to give companies the opportunity to learn best practices and provide them with live feedback from our expert instructors AWS Approved Instructors. These trainings will also help learners to prepare AWS Certification exams, which validate technical skills and expertise.

We also aim to provide the top learning resources and deep knowledge learners need to innovate and build the future using the AWS Cloud. AWS Training content is built on native AWS knowledge and gives learners a path to advance their careers and transform their organizations.

A free of charge virtual webinar will be held on the 29th September 2020 at 10AM (CEST) on the theme: AWS Discovery Day – An introduction to AWS.

Please register here:

More information :


TeamWork and Corexpert achieve 50 AWS certifications !

TeamWork and Corexpert achieve 50 AWS certifications !

AWS is an environment that is always shifting and evolving : there are numerous updates and news which drive the continuous innovation from AWS. 

How do you verify the competency for building, deploying and maintaining the infrastructure offered by the platform ?
With the certifications proposed by AWS ! 

Categorized in competencies, these exams reward counseling the right services, promote a well architected framework and check the knowledge of the candidate based on deep professional hands on experience.  aws-certifications-5

Today, TeamWork and Corexpert have reach a milestone in the total number of certifications obtained : our team has 50 certifications. This commitment in the AWS cloud is a testimony of adaptation and capacity to answer at a large panel of requests from customers. Our experts are ready to be challenged by your interrogations and will guide you to success on AWS projects. Cost optimization, migration from on-premise, tasks automatization are some problematics (and many more !) which our team can help for your journey to the cloud.  

TeamWork and Corexpert have also a competency in the integration of SAP on AWS and are a priviledged partner for AppStream 2.0.

Optimizing Ad Serving with Machine Learning for cost, performance and quality improvements

Optimizing Ad Serving with Machine Learning for cost, performance and quality improvements

About our client

Their Ad-serving technology is optimized for user experience, and is integrated in over 450 mobile and web applications. They serve more than 1 billion ad requests every day to millions of users with a minimal latency. They embraced the Cloud-First spirit by being 100% hosted on AWS from the beginning and they are using over 50 services to create a cutting-edge technology solution.

The challenge

Nowadays, Ad Tech companies have to handle huge traffic volumes to deliver Ads. They focus on high quality Ads by controlling traffic and bidding on partner programmatic platforms. This strategy reduces the payout per Ad request and therefore limits the revenues of the company. Learning user behaviors and optimizing traffic quickly became inevitable, so they gathered a R&D team to build Machine Learning algorithms.

The solution

User data is processed using an Amazon EMR cluster, running every month and processing tens of billions of user events. Amazon S3 is the primary choice for storing raw data (hundreds of terabytes). An Amazon EC2 instance, packaged with Machine Learning libraries, uses the monthly generated dataset to update the currently trained model and prepare a blacklist, that is loaded in Amazon DynamoDB for high traffic reads.

Machine Learning

The benefits

  • The ML algorithm detects and filters 60% of total traffic being not relevant. The R&D team continuously improves its accuracy.
  • AWS infrastructure costs are reduced by 45%. The company is reinvesting this money into new services and quality improvements.
  • Ads get rendered 7x more often, meaning users have a better experience while watching ads in mobile applications.
  • Higher Ad partner trust and Ad revenues. A direct impact is a visible growth in partner integrations and market visibility.


TeamWork announces the acquisition of Corexpert, the french AWS pure player, to accelerate its growth in the Cloud Computing market in France and worldwide

TeamWork announces the acquisition of Corexpert, the french AWS pure player, to accelerate its growth in the Cloud Computing market in France and worldwide

Paris, September 25th, 2017 – TeamWork, specialized in consulting, integrating, outsourcing of SAP solutions and technology platforms, announces the acquisition of Corexpert, Amazon Web Services specialist and pure player. This unique complementarity allows TeamWork to strengthen its position in the cloud computing market in France and worldwide.

Amazon Web Services (AWS), a cloud computing pioneer, provides a wide range of services enabling all types of customers to accelerate the deployment of their infrastructures and business applications. It is also the only cloud computing provider meeting all performance and security requirements to be SAP-certified. Thus, project deployments are accelerated and customers benefit from agility and flexibility, so far reserved for the web industry.

Known as an expert in consulting, designing and building AWS Cloud infrastructures, Corexpert brings its expertise, experience and DevOps approach to TeamWork. Certified AWS Advanced Consulting Partner, Corexpert technical team develops, deploys and maintains in operational condition solutions for their customers, based on the most innovative managed services from Amazon Web Services, while continuously optimizing TCO.

TeamWork, a strategic partner in digital transformation, operates in four core businesses: Business Consulting, SAP Business Solutions, Technology Platforms and Data Analytics. Recognized by its clients for its expertise and experience, TeamWork supports both major international accounts and SMEs. TeamWork’s 15 international locations allow it to guarantee 24/7 technical and functional outsourcing support services and geographical proximity to its customers.

“Corexpert has allowed us to accelerate our deployment on the AWS Cloud and the Time to Market of Orinox’s SaaS Graphics Workstation (OCWS) offer. The synergy between TeamWork and Corexpert confirms their ability to support us in our client projects (large French and American energy companies) both internationally and with 24/7 support services” Maxime Fourreau, founder and CEO of Orinox.

The acquisition of Corexpert by TeamWork is part of a strategy to develop an AWS Cloud competence center to address emerging new needs, such as IoT, Big Data and Blockchain, which are growth levers for digital transformation. The collaboration with Corexpert, started several months ago, also enabled TeamWork to consolidate its position as an SAP integrator on the AWS platform.

« The acquisition of Corexpert by TeamWork Group was obvious for two main reasons : our development and partnership with Amazon Web Services, which started with SAP on HANA projects, and the values shared by our two structures. The perfect complementarity of our expertise will allow our customers to pursue or accelerate their digital transformation, in particular with the adoption of the AWS Cloud. » Philippe Rey-Gorrez, CEO of TeamWork Group

« Majority participation of TeamWork Group in the capital of Corexpert is a strong signal to all our local and international customers. Cloud computing projects are increasingly ambitious and require larger and multidisciplinary teams. Corexpert proves its technological and innovative value daily, and joining TeamWork will enable a faster and more structured development to meet a demanding market with intermediate-sized partners. » Alexis Daguès, Co-founder and CEO of Corexpert

TeamWork and Corexpert will discuss their partnership at the USF convention on 4 and 5 October at the Lille Grand Palais and during the Transformation Day on November 8 at the Salle de la Mutualité in Paris.
TeamWork and Corexpert will also be attending the AWS re:Invent in Las Vegas from November 27 to December 1st, 2017, bringing together more than 40,000 Amazon Web Services customers and partners.

About TeamWork

TeamWork, international group, founded in 1999 in Geneva, is an independent company involved in four core businesses: Business Consulting, SAP Business Solutions, Technology Platforms and Data Analytics. Recognized by its clients for its expertise and experience, TeamWork is a strategic partner in digital transformation, accompanying both major international accounts and SMEs. With more than 420 employees and 15 international locations (Switzerland, France, Vietnam, Singapore, China, India, Canada, United States), TeamWork stands out with its ability to guarantee 24/7 technical and functional outsourcing support services and geographical proximity to its customers. The competence, the taste for the challenge, the human values and the talent of its teams allow TeamWork to achieve linear growth and strong customer loyalty. For more information, visit

About Corexpert

Corexpert, a pure player of the AWS Cloud, was founded in 2006. Cloud Native company, its team of 20 collaborators consists of Developers, DevOps and Cloud Computing Architects. They have built their expertise on multiple customer success projects, in particular with the Amazon Web Services Cloud that Corexpert has been using since 2010.
AWS Partner since 2014, then Advanced Consulting Partner in January 2017, Corexpert assists its customers in the usage of Cloud computing with a constant support, and ensures the skill improvement of customer teams in the daily usage of AWS managed services. Actors of the transformation of IT organizations, Corexpert team develops the best AWS Cloud strategy with their customers, accompanies them in the adoption of DevOps, automates their cloud computing infrastructures and offers dynamic and proactive supervision.

Press Contacts

Alexis Daguès
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Daphne Savoundiraradjane
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