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Subramanian Dharmarajan

Technical Services Manager @ NTT Data Inc | IIMB | Ex-Cisco | Professional Services | Technical Leadership | People Management

Greater Bengaluru Area

15+ years of work experience

NTT DATA, Inc.
Jan 20224 yrs 8 mosPresent

Bengaluru, Karnataka, India

●      Built the NTT GCC Engineering & Project Management team from scratch for the Europe region — partnered with leadership on service design packs, and personally interviewed and selected every hire. ●      Scaled the team from 0 to 35 engineers in 3 years while sustaining year-on-year PO renewals worth $2M+. ●      Drove a strong promotion culture — 30% of the team promoted within 3 years, supported by billing growth that justified the increased seniority. ●      Negotiated free OEM vouchers and lab access to cross-skill and upskill the team at zero cost to the business unit. ●      Partnered directly with NTT Europe VPs and GTM leadership to promote India GCC capabilities — shifting the team from relying on regional referrals to generating direct business. ●      Drove market expansion into 2 new European countries as a result of this direct engagement. ●      Prepare effort estimation for GTM teams and provide technical inputs on RFPs and SOWs; involved in product design and development.
NTT DATA, Inc.
May 20201 yr 8 mosDec 2021

Greater Bengaluru Area

• Led the design and testing of a multivendor services portal for hardware/software lifecycle management. • Served as the Single Point of Contact (SPOC) for SD-WAN technologies, ensuring cross-functional collaboration. • Developed Technical Effort Estimations for competitive bids, enhancing RFP responses with pre-sales teams. • Drove project execution, consistently improving client satisfaction and maximizing profitability.
Capgemini
Dec 20196 mosMay 2020

Bengaluru, Karnataka, India

• As a Network Architect my responsibilities include designing various network upgrades that are requested by Site owners and Project managers. This involves understanding the requirement,planning,research on product and technology involved and prepare a design document. • Some of the projects done are WLAN upgrade(Switches,WAP’s)WAN routers BW upgrades,IT and OT area design changes.
Microsoft
May 20196 mosOct 2019

Bangalore

Worked in the Cloud Domain with Microsoft Azure as Escalation engineer helping customers with Iaas/Network part of it Extending premium support to customers who have networking issues connecting between On-prem and Azure datacentre VM’s/applications. Troubleshooting issues with Load balancers,Application Gateways, Express Route,Site-Site and Point-Site VPN’s,Azure DNS and Firewall Exposure to concepts and technologies like Dockers,Kubernetes
Cisco
Feb 20163 yrs 4 mosMay 2019

Bangalore

Supporting 300+ customers worldwide on range of platforms and technologies.. Major Customers include Major ISP's like T-mobile.,Telstra,Verizon,Saudi telecom,Airtel,Reliance,Vodafone. Providing premium support to customers ( very strict SLA's and expectations of quick quality resolutions) Troubleshooting live customer issues and helping analyse and resolve their network related issues. Platforms supported include ASR9k,CRS,NCS,eXR..Technologies include OSPF,BGP,Multicast,L2/L3 VPN,Infra,BFD,Bundle and host of other related protocols implemented across major ISP's.
Cisco
Jan 20124 yrs 2 mosFeb 2016

Bengaluru, Karnataka, India

Test/QA engineer: ================ Brief: 1.Good Product Knowledge and Testing of NCS6K,CRS and ASR9k series of Edge and Core routers. 2.Worked on FMEA/FIT ASIC testing,L2/L3 Multicast Testing ,Scale,Performance and Stress Testing .
HCL Technologies
Oct 20101 yr 1 moOct 2011

Chennai

Worked on testing of Junos routers ( M,MX,T series of routers) Involved in Debugging,Sanity and Regression Testing. Executing scripts and analysing results.Filing bugs for issues found..

Subramanian’s AI Stack

claude
claude

Education

Indian Institute of Management Bangalore

Executive MBA, Business Administration and Management, General

Indian Institute of Management Bangalore

20251 yr2026
Indian School of Business

Certificate in IT Project Management

Indian School of Business

20222022

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Headline

Technical Services Manager @ NTT Data Inc | IIMB | Ex-Cisco | Professional Services | Technical Leadership | People Management

About

As a Technical Services Manager at NTT DATA, Inc., I lead a high-performing team of engineers, architects, and project managers within the Global Capability Center (GCC). My core focus centers on stakeholder management, high-level escalation resolution, team upskilling, and optimizing complex vendor relationships to deliver seamless, cross-border collaboration across NTT entities in Europe. With over 22 years of experience spanning technical leadership, professional services, and people management, I am passionate about scaling and enabling teams to deliver world-class execution while maximizing revenue for both the organization and our clients. Having recently completed an Executive Management program from the Indian Institute of Management Bangalore (IIMB), I combine deep technical heritage with advanced business strategy—bringing refined vision, data-driven leadership, and elevated confidence to solve large-scale enterprise challenges

Location

Greater Bengaluru Area

AI stack

claude

Work experience

Technical Services Manager at NTT DATA, Inc., Jan 2022 - Present · 4 yrs 8 mos, Bengaluru, Karnataka, India, ● Built the NTT GCC Engineering & Project Management team from scratch for the Europe region — partnered with leadership on service design packs, and personally interviewed and selected every hire. ● Scaled the team from 0 to 35 engineers in 3 years while sustaining year-on-year PO renewals worth $2M+. ● Drove a strong promotion culture — 30% of the team promoted within 3 years, supported by billing growth that justified the increased seniority. ● Negotiated free OEM vouchers and lab access to cross-skill and upskill the team at zero cost to the business unit. ● Partnered directly with NTT Europe VPs and GTM leadership to promote India GCC capabilities — shifting the team from relying on regional referrals to generating direct business. ● Drove market expansion into 2 new European countries as a result of this direct engagement. ● Prepare effort estimation for GTM teams and provide technical inputs on RFPs and SOWs; involved in product design and development.

Technical Architect at NTT DATA, Inc., May 2020 - Dec 2021 · 1 yr 8 mos, Greater Bengaluru Area, • Led the design and testing of a multivendor services portal for hardware/software lifecycle management. • Served as the Single Point of Contact (SPOC) for SD-WAN technologies, ensuring cross-functional collaboration. • Developed Technical Effort Estimations for competitive bids, enhancing RFP responses with pre-sales teams. • Drove project execution, consistently improving client satisfaction and maximizing profitability.

Network Architect at Capgemini, Dec 2019 - May 2020 · 6 mos, Bengaluru, Karnataka, India, • As a Network Architect my responsibilities include designing various network upgrades that are requested by Site owners and Project managers. This involves understanding the requirement,planning,research on product and technology involved and prepare a design document. • Some of the projects done are WLAN upgrade(Switches,WAP’s)WAN routers BW upgrades,IT and OT area design changes.

Escalation Engineer at Microsoft, May 2019 - Oct 2019 · 6 mos, Bangalore, Worked in the Cloud Domain with Microsoft Azure as Escalation engineer helping customers with Iaas/Network part of it Extending premium support to customers who have networking issues connecting between On-prem and Azure datacentre VM’s/applications. Troubleshooting issues with Load balancers,Application Gateways, Express Route,Site-Site and Point-Site VPN’s,Azure DNS and Firewall Exposure to concepts and technologies like Dockers,Kubernetes

Technical Consulting Engineer at Cisco, Feb 2016 - May 2019 · 3 yrs 4 mos, Bangalore, Supporting 300+ customers worldwide on range of platforms and technologies.. Major Customers include Major ISP's like T-mobile.,Telstra,Verizon,Saudi telecom,Airtel,Reliance,Vodafone. Providing premium support to customers ( very strict SLA's and expectations of quick quality resolutions) Troubleshooting live customer issues and helping analyse and resolve their network related issues. Platforms supported include ASR9k,CRS,NCS,eXR..Technologies include OSPF,BGP,Multicast,L2/L3 VPN,Infra,BFD,Bundle and host of other related protocols implemented across major ISP's.

Software Test Engineer at Cisco, Jan 2012 - Feb 2016 · 4 yrs 2 mos, Bengaluru, Karnataka, India, Test/QA engineer: ================ Brief: 1.Good Product Knowledge and Testing of NCS6K,CRS and ASR9k series of Edge and Core routers. 2.Worked on FMEA/FIT ASIC testing,L2/L3 Multicast Testing ,Scale,Performance and Stress Testing .

Senior Technical Lead at HCL Technologies, Oct 2010 - Oct 2011 · 1 yr 1 mo, Chennai, Worked on testing of Junos routers ( M,MX,T series of routers) Involved in Debugging,Sanity and Regression Testing. Executing scripts and analysing results.Filing bugs for issues found..

Education

Executive MBA, Business Administration and Management, General, Indian Institute of Management Bangalore

Certificate in IT Project Management, Indian School of Business