Dimitris Tselios Email & Phone Number

Frisco, Tx, Us

Plano

Led service readiness within Market Area North America network engineering services organization with all North American customers. Maintained executive relationships. • Acted as single point of contact for critical customer issues, focused on driving network performance and operations excellence ensuring that all concerns and complaints are addressed promptly and effectively. Succeeded to deliver a clear support process reducing system down time from days to hours ensuring services delivery organization efficiency. • Provided leadership and direction to service delivery teams, and other key resources in Practice Professional Services, which has increased productivity, reduced costs, and took advantage of new technology and workflows, maintaining the highest-ever employee engagement scores. • Masterminded execution strategies based on Lean Six Sigma, Networks organizational OKRs, objectives, policies, procedures, and guidelines. • Developed and executed customer performance assessments, opportunity identification, and strategy/tactics for performance consulting engagements that drove adjacent and add-on sales, ultimately achieving goals. • Gained expertise in cloud technologies (AWS, Azure, Google Cloud) by driving resources discussion and product management for AI-native automation tools. Improved costs and speed by establishing goals and metrics that accelerated technical implementations from 60 days to a record-breaking 8 days by introducing cloud technologies

Dallas, Usa

Business development, sales, and delivery of Global Design and Optimization Network Services. Lead global Partnership engagements with major customers. • Generated profitable sales (35%UM – NS1.5M$), and maintained strong executive relationships. • Created strategic new business opportunities across all horizons of innovation. • Defined scope of work and pricing proposal (NS 1M$) for the co-development of ML/AI use cases in T-Mobile that resulted in profitability improvement and initiating solutions that lead to Cognitive Software modules portfolio in the latest years. • Cultivated solid relationships with C-levels, addressed demand to reduce customer complaints ensuring customer experience in Bharti Network by leading cross-functional teams of regional experts that resulted in increased client satisfaction and protect existing managed services business. • Served as main interface for Ericsson CTO office and CU, addressed customer escalation to leadership by heading a task force team of regional and R&D experts resulting in profitable sales, increased client satisfaction and protect existing product and services business.

Algeria

Oversaw Service Line Optimize and part of NES CU Algeria leadership team, driving a team of 35 high-performing individuals from diverse cultures and backgrounds. Managed profitable (NS 15M€) and repeatable business through C-Level engagement for major customers in Algeria based on business needs. • Identified business, operations, and key customer objectives through consulting, decision making, and thought leadership. • Translated technology opportunities into detailed service and product offerings, solutions, and proposals. • Optimized transformation to new delivery models, addressed customer challenges and business directives, ensured operating within its targets, financial expectations, targeted pyramid, and span of control. • Led a team of Solution Architects and Network Engineering experts in the implementation and execution of performance improvement strategies and partnerships across internal and external organizations. • Owned headcount resource management forecasting in alignment with the financial forecast and affordability model. Provided region with financial support in alignment with finance, which could include, annual budgets, utilization, billability, absorption, regional profitability, and business cases.

Athens, Greece

Technical lead for Network Design and Optimization Services to major operators, analyzing and developing technical solutions for customers, based on their specifications and business needs. · Participated on Core 3 team that translated customer needs, and technology opportunities into detailed technical offerings, solutions, and commercial proposals. · Owned customer relationships throughout extensive experience in RF engineering, network planning, design, and optimization, with in-depth knowledge of 4G and 5G networks. Proficient in performance measurement, analysis, and improvement, customer C-level interface, cost estimation/analysis, risk analysis, and responsible for overall project acceptance.

Athens, Greece

Accountable for end-to-end sales and delivery process including cash collection. Lead and develop a sales funnel to generate profitable sales and develop a long-term business. Take the role of CFR/CSR in RFQ activities acting as the end-to-end responsible for RAN services solution, customer issues, and being the role model for the local solutions team. · Delivered 15M€ of in-year revenue, leveraging core and emerging product solutions. Secure the Ericsson Added Value (Total Cost of Ownership) is presented and understood by the Operators. · Positioned and presented new Products and feature packages and managed lifecycle. · Defined RAN Solution and discussed business requirements in solution implementation throughout project lifecycle, from presales activities to customer handover. · Stayed involved and informed about major product and solution issues, proposed new solutions to address issues. · Member of the Core3 team as CSR, responsible for solution specification, service descriptions, main technical interface to the customer. · Supported Core3 as SME responsible for project specification, SoC, service description, KPI Impact analysis.

Athens, Greece

Delivery of Services to Operators, by analyzing, designing, and developing commercially viable end-to-end technical solutions for customers based on their business needs. Being part of the Core 3 team to translate customer needs, and technology opportunities into detailed technical offerings, solutions, and proposals. • Designed an E2E technical solution in co-operation with the customer. The solution often leads to further development and improvement of customers’ organization and processes. • Increased sales volumes by identifying new business opportunities. Consulted customer for new Products, Feature packages, and RAN strategies. • Led customer projects, handling scope changes, risks, and customer expectations; manage operations within the Network & Technology Consulting Group and manage teams of less experienced Solution Architect or Service Engineers in Customer Projects to ensure that they are delivered according to expectations and plans. • Coordinated teams on 3G technical aspects and set goals with the customer. Team leading, technical project management, and defining the project process and acceptance. • Oversaw pre-sales activities and scope and budget definition. Deep packet inspection in core and radio network interfaces, test analysis. • Optimized and designed services, service specification, budgeting, resource management, cost estimation/analysis, risk analysis, customer reporting, Network Performance Improvement, radio performance KPI’s definition • Organized cope, risks, and expectations. Interface all leading technical stakeholders to define the network solution and IP design for Charging Solution 4. Network performance investigation and assessment.

Athens, Greece

Designed and installed wireless communication network systems and project management. • Managed WiMAX trial network in TIM GR, Cosmoline, RomTelecom, Tellas GR. • Participated in presales activities in ARMENTEL’s RFQ for UMTS/GSM networks.

Member of the Communications & Informatics Division of the Fourth Army Corps. • Administered multiple servers’ network architecture of Cisco networks (Routers, switches, and firewalls). • Interfaced with senior members of the army command, taking requirements and translating them into actions.

Bristol, Uk

Responsible for the specification, development, and support of radio planning tools and network parameter design. • Member of a multinational team of engineers to drive the development of radio planning tools and their deployment across the Orange group of companies worldwide. • Worked with Network Performance teams to understand actual network performance and drive the adoption of new features or modifications to existing parameters to maximize network performance.

Msc, Electronic & Mobile Communications

Dissertation: Automated propagation model tuning for cellular mobile communications applications (using Matlab GUI).

Beng, Electronic & Communication Engineering

Dissertation: Design a high-speed infra-red port for digital integration with electronic hardware.