DevOps Consulting Expertise

Marc Hornbeek a.k.a.DevOps_the_Gray esq.


CEO  Marc Hornbeek, known as “DevOps_the_Gray”.   

A well-known award-winning IEEE engineer and seasoned DevOps consultant, adviser, educator, mentor and author. Marc has performed assessments for over 70 organizations resulting in successful DevOps implementations and major improvements for those organizations. Marc is the author of the book Engineering DevOps, the Continuous Delivery Architect certificate course and DevOps Test Engineering certificate course for, and a blogger on Specialist / expert in DevOps assessments for organizations that desire a practical road-map to guide their DevOps transformation. Skilled with DevOps Leadership, collaborative culture, Design for DevOps, Continuous Integration (CI), Continuous Testing (CT), Continuous Delivery and Deployment (CD), Lab-as-a-Service (LaaS), Continuous Monitoring (CM), and Continuous Security. 

Awarded IEEE Outstanding Engineer, 2016, Western USA. Senior IEEE member, 44 years. Many publications, industry events speaker, eBooks, blogs, webinars, white papers, pitch decks, patents. Credentials include Executive MBA - Pepperdine U, California, B.Sc. Engineering - Queen’s U., Canada, and certifications from the DevOps Institute

Niladri Choudhuri

Niladri Choudhuri - Director


Niladri is an experienced expert in IT Industry, having 30 years of Delivery, Consulting and Training experience. He has built competencies in Portfolio, Program and Project Management Consulting and Enterprise Project Management Tools Implementation and consulting on Agile and DevOps methodologies. He has also managed multiple projects on custom built application, integration with ERPs and Datawarehouse projects along with setting up ITSM processed and managing the Operations. He has managed large team upto 250 members in onsite – offshore model. He has managed projects with customers in USA, UK, Europe, Middle-east, Japan, Australia and Singapore. He has large experience in pre-sales, customer relationship, proposal making and defence globally.

He has been responsible for leading the Practice to a size of USD 10+ Million. He has managed various alliances with organizations like HP, CA, Microsoft, Oracle Primavera, and Planview. He has developed the go-to-market with such alliance partners, sell-with, sell-through strategies and various solutions to bring to market together enabled on their products.

He has trained employees from many large organizations in India and abroad. He is the only one accredited for DevSecOpsCertification from DevOps Institute, USA in India. He is part of the ITIL 4 Development Group and is an ITIL 4 MP certified.

He is the Founder and CEO of Xellentro Consulting Services LLP, a Consulting and Training organization focusing on DevOps and the organizer for the largest DevOps Event in India – DOIS2018 and DOIS2019.

Specialties: Delivery Management, Enterprise Portfolio Management and PMO Consulting, EPM Solutions based end to end consulting. Program and Project Management, Agile Methodologies, DevOps. 

DevOps Assessments

DevOps Engineering Services

1. DevOps training and certifications include DevOps Institute courses and custom course for DevOps leaders and practitioners.

2. DevOps Assessments and strategic planning services include standard and customized packages that help you determine your optimal road-map for your DevOps journey.

3. Advisory and mentoring services for leaders that need expert advise to help them drive their organizations on a DevOps transformation.  

4. DevOps content writing services  includes marketing collateral, training materials, blogs, eBooks, white papers, and webinars.


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