Available to hire
Hi, I’m Eduard Dulharu, a Senior Infrastructure Architect with over a decade of experience designing and delivering Next-Gen networks, data centers, and cloud connectivity across Europe. I excel at translating business challenges into scalable, secure network architectures using Cisco ACI, SDN, and cloud integrations, while leading cross-functional teams and mentoring junior engineers.
I enjoy guiding customers through complex migrations—from traditional networks to automation-driven environments—and exploring ML/AI approaches to optimize resilience and performance in core networks. When I’m not architecting solutions, I’m exploring new technologies and sharing insights through workshops and talks.
Skills
Experience Level
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Language
English
Advanced
German
Intermediate
Work Experience
Senior Infrastructure Architect at Kyndryl
July 1, 2022 - November 26, 2025Lead network and firewall migration design from traditional Cisco environments to Cisco ACI; design Azure connectivity using vWAN for an existing SD-WAN; conduct architecture assessments across Cisco, Arista and Juniper; manage a customer DC to stay compliant with regulatory and security standards; perform SW upgrades for DC devices; develop procedures for Wi‑Fi performance assessments; design Cisco DNA (SD-Access) for a client; provide security consultancy and lead customer workshops to identify challenges and propose solutions; deliver reference architectures, high-level and detailed designs, roadmaps, and other architectural artifacts; implement Python-based mass configurations for Cisco switches, WLC, PI and ISE; provide technical leadership to juniors.
Technology Architect at Infosys
May 1, 2022 - May 1, 2022Attend client meetings to understand business challenges; provide architectural solutions and deliver HLD/LLD; lead a technical team to design and implement solutions; oversee migration projects; review SD-WAN designs and troubleshoot performance; perform competitive analysis to inform strategy; identify opportunities for cloud, ML/AI, and Wi‑Fi 6; coordinate vendor interactions.
Senior Network Architect at AT&T
April 30, 2021 - April 30, 2021Translate European bank business needs into technical solutions; maintain strong customer and vendor relationships; lead migration from traditional Cisco Data Center technologies to FabricPath and SDN; provide presales consultancy for networking solutions; migrate NAS (ACS) to ISE; design WAN with refined HLD/LLD; migrate from Juniper SRX to Palo Alto firewalls; configure pilot sites for new QoS designs; lead SD-WAN designs and presales offers; drive opportunities and architect sales around them; coordinate Cisco SW upgrade tests and rollout for large DCs; support cloud migration projects and post-sales support.
Network Architect at AT&T
January 31, 2015 - January 31, 2015Network assessment and WAN redesign contributions; end-to-end IP architecture planning and design; support cross-tower service integration and project handover; lead infrastructure changes within AT&T scope.
Senior Network Engineer at AT&T
March 31, 2014 - March 31, 2014Provide outsourcing services; configure WLCs, Palo Alto firewalls and F5 load balancers; develop TCL scripts for a wide Cisco device family; coordinate with technical architects; create network documentation; support client migrations and performance improvements; provide technical guidance and trainings.
Core Data Network Engineer and Technical Project Manager at Telekom
May 31, 2011 - May 31, 2011Technical lead for a 3G network extension; design and configure APN names; configure Juniper switches and Ericsson 3G core devices; validate APN with Billing and Roaming; lead 3G core migration and VPN configurations.
System Engineer at Interactive Systems & Business Consulting
July 31, 2010 - July 31, 2010Technical lead for networking and wireless projects; design, configure and test data networks; systems integration including radio, multiplexers, microwave links and video conferencing; develop low-level design documents and deliver customer trainings.
Technical and Logistics Manager at Romanian Ministry of National Defense
April 30, 2006 - April 30, 2006Managed technical and logistics departments; administered and maintained military technical systems; managed local network; participated in upgrade programs coordinated by Lockheed Martin.
Senior Infrastructure Architect at NextGen Network, Kyndryl
July 1, 2022 - PresentLead customer engagements to understand business challenges and design migrations from traditional networks to Cisco ACI; architect Azure connectivity and vWAN integrations; create tender documentation for Next-Gen Networks; conduct architecture assessments across Cisco, Arista, and Juniper; develop HLD/LLD and BoMs for data centers; provide technical leadership, run workshops, and coordinate rollout of Data Center changes for a European bank; perform troubleshooting and mass configurations using Python scripts for Cisco switches, WLC, ISE; design and configure Palo Alto and Cisco Nexus data centers; deliver reference architectures, design documents, roadmaps, and other architectural artifacts.
Technology Architect at Infosys
May 1, 2021 - May 1, 2022Attend customer meetings to understand and solve business challenges; provide architecture for various projects and create HLD/LLD and troubleshooting support; lead a technical team to design and implement solutions; oversee migration projects; lead ML/AI PoC and innovation teams; perform competitive analyses to inform strategy; identify opportunities with new technologies (cloud migration, ML/AI, Wi-Fi 6) and interact with vendors and service providers.
Senior Network Architect at AT&T
February 1, 2015 - April 1, 2021Translate customer business needs into technical solutions; maintain strong customer/vendor relationships; lead transitions from traditional data center technologies to FabricPath/SDN; provide presales consultancy for networking solutions; build business cases for innovations; redesign WAN networks and develop HLD/LLD; migrate Juniper SRX to Palo Alto; automate pilot sites for QoS; lead SD-WAN/SD-LAN initiatives and roadmaps; support cloud migration projects and lead Cisco SW certification initiatives; deliver network design and security architectures and post-sales support.
Network Architect at AT&T
April 1, 2014 - January 1, 2015Performed network assessments, IP architecture design, and WAN redesign; led end-to-end project delivery from design to handover; supported network integration and infrastructure changes; contributed to cross-tower services and service delivery engineering.
Senior Network Engineer at AT&T
June 1, 2011 - March 1, 2014Provided outsourcing services; configured Cisco WLCs, Palo Alto firewalls, and F5 Load Balancers; developed TCL scripts for Cisco devices; created network documentation; supported migrations and performance improvements in data centers; delivered trainings and participated in advanced Nexus/ fabrication-related activities.
Core Data Network Engineer and Technical Project Manager at Telekom
August 1, 2010 - May 1, 2011Technical lead for a 3G network extension; designed and configured APNs; managed 3G core migration and VPN configurations; coordinated with Billing and Roaming departments; tested and validated network changes.
System Engineer at Interactive Systems & Business Consulting
April 1, 2006 - July 1, 2010Technical lead for networking and wireless projects; designed, configured, and tested data networks using Cisco devices; integrated radio, microwave, and video conference systems; produced low-level design documents and delivered customer trainings.
Technical and Logistics Manager at Romanian Ministry of National Defense
July 1, 2000 - April 1, 2006Managed technical and logistics departments; administered and maintained military technical systems and local networks; participated in upgrade programs coordinated by Lockheed Martin.
Education
Master - Information Technology Security at Military Technical Academy - Bucharest, Romania
January 1, 2009 - January 1, 2011Bachelor - Electronics at Military Technical Academy - Bucharest, Romania
January 1, 1994 - January 1, 1999Teaching at Teaching Training University of Bucharest - Bucharest, Romania
January 1, 1999 - January 1, 2000Master at Military Technical Academy - Bucharest, Romania
January 1, 2009 - December 31, 2011Bachelor at Faculty of Electronics, Military Technical Academy - Bucharest, Romania
January 1, 1994 - December 31, 2000Teaching Training at Teaching Training University of Bucharest - Bucharest, Romania
January 11, 2030 - April 12, 2026Qualifications
CCIE Enterprise Infrastructure - Written
January 1, 2022 - November 26, 2025CCDE - Written
January 1, 2019 - November 26, 2025CCIE R&S - Written
January 1, 2018 - November 26, 2025CCIE Data Center - Written
January 1, 2012 - November 26, 2025Bootcamp - Cisco Nexus CCIE Data Center
January 1, 2011 - November 26, 2025Ericsson – Project Management Course
January 1, 2011 - November 26, 2025CCIE Enterprise Infrastructure written
January 1, 2022 - April 12, 2026CCDE Written
January 1, 2019 - April 12, 2026CCIE R&S Written
January 1, 2018 - April 12, 2026Industry Experience
Telecommunications, Software & Internet, Professional Services, Financial Services
Skills
Experience Level
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Hire a Architect
We have the best architect experts on Twine. Hire a architect in Munich today.