PAVAN MADDIPATI
Perth,WA
Summary
Strategic Solution Architect eager to utilize expertise in process evaluation and optimization demonstrated over 18 years of superior industry performance. Innovative and ambitious with a passion for furthering Organization's mission.
- Forward-thinking project management specialist confident in leading team members, managing schedules and coordinating resources. Keeps projects on-track with decisive supervision and quick problem-solving. Persuasive in communicating and negotiating with internal team members, vendors and other stakeholders.
- Talented professional brings proven abilities in end-to-end project management. Expert in identifying and mitigating risks, reaching milestones, and managing deliverables. Highly organized leader with great attention to detail.
- Excel in design and delivering comprehensive, secure enterprise solutions and network architectures for Railways and Tier 1 mining companies
- Experience in Planning and Delivering segregation of IT and OT environment in line with best practices from industry standards such as IEC 62443 and NIST framework for large mining company.
- Familiarity with Purdue model to understand requirements of PCN and deliver security controls in OT environment while integrating with IT infrastructure by elevating the security posture for large mining company.
Overview
18
18
years of professional experience
3
3
Certificate
Work History
LEAD SOLUTION ARCHITECT
Rio Tinto
Perth, WA
08.2021 - Current
- Produce HLD and LLD to refresh Network infrastructure and hosting infrastructure for Rio Tinto Pilbara Mine sites
- Technical Lead for the development of processes and procedures to plan, validate and execute PCN (Process Control Networks) refresh in Rio Tinto Pilbara Mine sites
- Technical Lead for the stakeholder engagement that includes Enterprise Architecture board, Solution Architecture board, Network Platforms, Site Superintendents, Cyber Security, Production Telecoms and Site support teams to engage in the Architecture decisions and derive solutions
- Project lead for the PoC LAB setup to emulate the current environment, validate proposed solution, witness testing with stakeholders and secure sign off for the designs
- Designed and develop LAB topology, PoC Test Methodologies, Test Strategies and Test Cases to WAN integration and perimeter boundaries for highly secured facilities
- Conducting workshops with stakeholders at both individual level and in technical groups to build consensus on the proposed solutions
- Validating designs for Rio Tinto OC Network/Firewall Refresh and reorganizing the project schedule to establish milestones and bring the project from Red to Green
- Well versed and site travel ready to various Pilbara mines sites such as Cape Lambert, Dampier, Paraburdoo etc
- Lead role in conducting Technical Risk Assessments (TRA) and Level 2 Risk Assessment (L2RA) for various project execution phases
- Well versed with Management of Change (MoC) and Change Management processes in mine sites
- Proficient with integration of Networks with Control Systems such as I/O networks, PLCs and various Plant equipment
- Segregation of Network into Crit and Non-Crit environments
- Design Wireless Radio solution using Cambium PTP670 and segregation of traffic using Primary and Secondary Data Services.
LEAD TECHNICAL ARCHITECT
Serco
Perth, WA
02.2021 - 08.2021
- Produce HLD and LLD to refresh Network infrastructure and hosting infrastructure of Department of Justice correctional centres
- Designed WAN integration and perimeter boundaries for highly secured facilities
- Designed Firewall architecture to specific business requirements
- Designed, optimized, and integrated business processes across disparate systems
- Designed integration strategy for Learning Management Systems as centralised solution with multiple tenancies to cater for internal and external clients
- Developed Azure cloud hosting architecture to deliver applications and contents to multiple facilities in a highly secured manner
- Presented the developed designs to Enterprise Architecture Board and Technical Review Board for management approvals
- Produced Briefing notes for technical solution and presented to Department of Justice for approvals
- Worked with clients to develop and customize technology solutions according to specific business requirements
- Delivered documentation and consulting services to assist clients in understanding and supporting technology and processes
- Defined technical integration strategy and developed integration plans.
TECHNICAL PROJECT LEAD ARCHITECT
DXC Technologies
Perth, WA
06.2020 - 01.2021
- Lead a team to evaluate and remediate I&OT segregation in Rail and Port sites across APAC-W for Rio Tinto
- Lead a team to design, commission Train Control Backup network (Disaster Recovery site) for Rio Tinto (includes Mode 1 and Mode 2) and handed over to operations
- Lead a team to remediate ASA Firewalls with Cisco FTDs in mission critical mining environment
- Lead a team to design the HLD for Rio Tinto OC network refresh
- Lead a team to generate test plan for CPoC validation of the above HLD
- Lead a team and performed network infrastructure audit at Dampier port, 7-mile, West Angelas, Western Turner, Brockman 2, Nammuldi and Hopedowns1 to remediate EoL/EoS network equipment as part of Pilbara Refresh Network remediation
- Generated Audit reports, HLD and LLD for the remediation work
- Analysis to identify elements of RT CORP / I&OT network segregation that do not meet Rio Tinto Group Procedure Information Cyber Security Standards (GPICS)
- Documentation of all the analysis into business requirements as the basis of detailed design and execution phase planning
- Remediation of identified non-compliances in consultation with SMEs, vendors and stakeholders.
LEAD NETWORK ARCHITECT
Data#3 / ARC Infrastructure
Perth, WA
08.2019 - 05.2020
- Headed performance and capacity planning by auditing, monitoring, analyzing and reconfiguring network environments for future scalability and to improve network performance
- Designed and implemented network monitoring system Solarwinds Orion to monitor the entire network with Network Performance Monitor (NPM), Network Configuration Manager (NCM), IP Address Manager (IPAM), Network Traffic Analyser (NTA) and Syslog modules
- Innovated custom network solutions using IR809 remote routers and TCL scripting to manage and monitor Modbus RTU enabled OT devices at railway level crossings
- Validated the integrated solutions into back end application servers in core network via 4G LTE WAN network
- Authored custom TCL scripts to receive, parse, execute and send replies to CLI commands received via SMS on Routers
- TCL scripts to forward/receive SMS commands to/from end devices using TCP socket communication
- Involved in the HLD design of MPLS core network and project planning for migration of existing networks onto MPLS core with multiple tenancies and optimum fusion points for traversal of traffic between multiple tenancies
- Spearheaded multiple network projects by acting as technical lead and working closely with IT staff.
NETWORK ARCHITECT
Empired
Perth, WA
06.2019 - 08.2019
- Auditing of the current mission critical dark fiber links and delivering process improvements and technology upgrades, which resulted in increased efficiencies for large government enterprises such as Western Power
- Delivering OT Transformation by auditing and aligning the network to the current standards of Western Power
- Assisting the BAU team in resolving complex network issues for large government enterprise, Main Roads WA.
LEAD NETWORK ARCHITECT
Opticomm Co Pty Ltd
Perth, WA
07.2015 - 06.2019
- Design, commission, operate and maintaining the core MPLS network that involves working with OSPF, BGP, L2 MPLS (VPLS & VLLs), L3 MPLS VPNs
- Configured and implemented ISP on carrier networks using existing MPLS core and deliver internet services using PE and ASBRs
- Load balancing the internet uplink traffic across multiple peers such as Vocus, Megaport and IX Australia
- Established Wireless networks for Enterprises as part of ICN networks using different platforms such as Ruckus, Huawei, Mikrotik and managed the APs using various Wireless Access Controllers such as vSZ (Virtual Smart Zone), ZoneFlex and AC6605
- Deployed advanced services such as location-based value added services using vSPoT
- Integrating Wireless platforms with external centralized management portals such as Skyfii and Encapto so that Enterprises can realize the data science and marketing services
- Troubleshooting Wireless network performance issues such as coverage, black spots, roaming, inter channel interference, external interference by carrying out site surveys using WiFi analyzers and reporting the issues and the mitigation steps
- Assisted various Enterprises in maintaining network security by configuring Routers (Cisco, Juniper, Brocade, NetIron, Huawei, Mikrotik) and Firewalls (Fortigate, USG6600) for Security, Intrusion Prevention using Access Control lists and Policies
- Set up VPNs for remote access, monitoring and support
- Design and deliver Enterprise grade IP PBXs for various businesses to realize features such as SIP trunks for inter office links, Number plans, Dial Plans, DID mapping, Hunt groups, IVRs, Wake up calls, Call routing, Call accounting, Billing, integration into PMS such as Oracle and FCS, Emergency numbers, IP Phones, Analogue phones, Hospitality phones, Lift phones, WiFi phones for roaming staff, MoH and Voicemails
- Design, commission, operate and maintaining various Access technologies such as GPON, EPON, GE-PON, VDSL and HFC from various vendors such as Alcatel, Huawei, Dasan, NEC, Alloptic, Ensemble/Wave7, CMTS, Zyxel, Huawei D-CCAP
- Integrated HFC with GPON and EPON networks to deliver a true OPEN ACCESS network
- Deployed BMS services over GPON networks, such as Lighting control, Metering, HVAC, IP PBX services, Firewalls, Virtualization of servers, AV, Background music, IPTV, SMATV, UPS management and PayTV services
- Deployed IPTV services for various Hotels and Apartment buildings by integrating VOD, FTA and PayTV using IPTV and narrowcast over single GPON infrastructure to Smart TVs
- Receive FTA (DVB-T/T2), PayTV (DVB-S) and convert them to QAM to narrowcast using DVB-C for basic TVs over GPON network
- Worked with various platforms such as Astro, Blubox, Kingray, Dexing Digital, Spaun Stacker and VOD.
ENGINEERING TEAM LEAD
Opticomm Co Pty Ltd
Perth, WA
07.2014 - 06.2015
- Formulating strategic vision to introduce redundancy into the already existing backbone and access network infrastructure to cover for unforeseen outages and for increased resilience
- Interfacing with RSPs, Developers, Clients and gathering business requirements
- Formulating business solutions, POCs and implementation of the design
- Interfacing with various Tier 1 vendors to discuss the upcoming technologies and trends
- Formulating business solutions and plans to boost the revenue
- Leading a team of Engineers to Design, Commission and Handover of Open Access Networks that involves GPON, EPON, VDSL, HFC and Wireless technologies
- Interfacing with various service providers such as Telstra, Optus and Vocus, for back haul services
- Designing the SLAs requirements and KPIs for monitoring the back haul services within the organisation.
RESEARCH ANALYST
Opticomm Co Pty Ltd
Perth, WA
07.2012 - 06.2014
- Troubleshooting complex network issues such as back-to-base security alarms, Aged care emergency services, lift emergency services over access networks by circumventing the traditional requirement for POTS based back-to-base alarms
- This served as a major differentiation from the competitors and boosted the sales for the organisation
- Planned and executed the migration of core MPLS and Access networks to make way for advanced features that enables new products in line with the Management's strategic view
- Conducted analysis to address network congestion issues which led to introduction of Aggregated State Circuits for RSPs that boosted the company revenue
- Authored Strategic road maps for phase out of legacy equipment in the network and aligning the networks to the current industry trends, there by converting non-performing assets into performing assets
- Interfacing with Tier 1 vendors and formulating products to deliver new value added services such as Metering, LAN networks, Local and International TV channels, IPTV delivery of FTA, Intercom integration, CCTV and e-Health on the already existing Access networks
- Inducting these services into the business model
- Design and POC trails for IPTV delivery of Select TV, Energy Metering and local surveillance
- Reviewed and provided comments on the adequacy of documents and took necessary steps to cure any deficiencies.
NETWORK ENGINEER
Opticomm Co Pty Ltd
Perth, WA
07.2009 - 06.2012
- Commissioning very first NBN Co Tasmania Pilot project
- Delivering the POCs for the Open Access Networks and handing over the project
- Design, commission and operate Open Access Networks for various developers
- Troubleshooting network issues and introducing processes and procedures to increase the network reliability
- Monitored multiple databases to keep track of all network operations
- Organized and coded all documents related to due diligence for acquisitions
- Providing training for network operators, RSPs, ISPs and clients.
ICT CONSULTANT
Titan ICT Consultants
Perth, WA
07.2007 - 06.2009
- Part of Network design team for large projects such as PTA and Southern Railways
- Design and Cost estimate study of the MPLS network for the Rio Tinto OTN network
- Design guidelines and cost estimate study of the IP network for CP Mining
- Carrier licence applications for several carrier clients
- Documentation of Interception capability plan and the supporting documents for the Carrier licence application including policies and procedures
- Network design and implementation of Administrative LAN for Belswan Lifestyle Estates
- Design and commissioning of Cisco Unified Communications for clients
- Analysis of current LAN and WAN for UWA and formulating strategic plan for upgrades for UWA
- Design and deploy networks for developers as per their specific requirements.
LEVEL 2 SERVICE ADVANTAGE
Telstra
Perth, WA
07.2006 - 06.2007
- Testing the local loop (last mile) of the Telstra Network
- Programming Network related data in for Telstra AXE and System12 exchanges
- Configuring and testing POTS telephone connections, Rotary hunt group connections and In-dials
- Configuring, programming and testing ADSL connections
- Configuring, testing and fixing fault escalations in various types of Pair Gain Systems.
Education
Graduate Diploma - Computer Security
Edith Cowan University
01.2007
Masters - Telecommunications and Networking
Curtin University of Technology
01.2006
Skills
- Process Control Networks (PCN)
- Network Infrastructure Refresh
- Hosting Infrastructure Refresh
- Cyber security
- ISO/IEC 27000
- OT
- I&OT Segregation
- Firewalls
- Routing Protocols
- Deep packet inspection using Wireshark
- Cisco Routing and Switching
- Azure
- F5 Networks BIG-IP
- Cisco ASA Firewalls
- Cisco FTD
- Cisco ISE
- Cisco WLC
- Cisco UCS
- Cisco WSA
- Cisco Meraki SD-WAN
- VMWare
- Custom Network solutions
- TCL Scripting
- VPN
- Sonus SBC
- Fibre Optics
- CWDM/DWDM
- MPLS
- IP MAN/WAN
- Network Management Systems
Timeline
LEAD SOLUTION ARCHITECT
Rio Tinto
08.2021 - Current
LEAD TECHNICAL ARCHITECT
Serco
02.2021 - 08.2021
TECHNICAL PROJECT LEAD ARCHITECT
DXC Technologies
06.2020 - 01.2021
LEAD NETWORK ARCHITECT
Data#3 / ARC Infrastructure
08.2019 - 05.2020
NETWORK ARCHITECT
Empired
06.2019 - 08.2019
LEAD NETWORK ARCHITECT
Opticomm Co Pty Ltd
07.2015 - 06.2019
ENGINEERING TEAM LEAD
Opticomm Co Pty Ltd
07.2014 - 06.2015
RESEARCH ANALYST
Opticomm Co Pty Ltd
07.2012 - 06.2014
NETWORK ENGINEER
Opticomm Co Pty Ltd
07.2009 - 06.2012
ICT CONSULTANT
Titan ICT Consultants
07.2007 - 06.2009
LEVEL 2 SERVICE ADVANTAGE
Telstra
07.2006 - 06.2007
Graduate Diploma - Computer Security
Edith Cowan University
Masters - Telecommunications and Networking
Curtin University of Technology
Certification
- Cleared ISO/IEC 27001 : 2022 Lead Auditor, written exam. Awaiting certification
- Certified Information Systems Security Professional (CISSP)
- Certified in The Open Group Architect Framework 9.2 Foundation (TOGAF)
- Certified Microsoft Azure Fundamentals (Azure)
- Certified ITIL 4 Foundation
- Certified JNCIA
- Trained in WLAN design principles by vendor agnostic consortium InTechnology
- Trained in GPON
Languages
English
Professional
Telugu
Native/ Bilingual
Hindi
Limited
Affiliations
- Camping and Fishing
- Outdoor activities
- Watching and playing sports (Tennis, Badminton, Cricket, TT)
Industry Expertise
- Mining
- Energy
- Department of Justice
- Public sector
- Rail
- Telecommunications
- Information Technology
References
References available upon request.
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