# Panagiotis Koletsos

Senior architecture profile for digital platforms, identity, APIs, and practical AI.

Website: https://panagiotis.koletsos.gr
LinkedIn: https://www.linkedin.com/in/pcoletsos/

Last updated: April 2026

## Profile

Senior Solution Architect with 10+ years in telecom and enterprise technology, focused on turning strategy into implementable architecture across digital channels, identity, APIs, and platform modernization.
Combines solution architecture, delivery alignment, QA, Scrum, CRM, and operations experience with practical AI architecture enablement through Copilot and agent workflows, prompt engineering, and reusable reference patterns.
Works best where target-state architecture, stakeholder alignment, security and privacy controls, and delivery trade-offs need to stay connected.

## Snapshot

- Direction: Enterprise / Solution Architect + AI Enablement Lead
- Experience: 10+ years across telecom and enterprise technology
- Current public company label: Vodafone
- Core scope: Digital journeys, identity, APIs, cloud modernization, and governed AI enablement

## Experience

### Senior Solution Architect - Vodafone

Jan 2022 - Present

Leads architecture for customer-facing digital journeys, identity, APIs, reusable platform decisions, architecture governance, and practical AI enablement.

- Architected and evolved couponing, referral, identity, onboarding, and API capabilities across telecom digital channels.
- Supported migration from legacy gateway patterns toward cloud-native API management and modern token-based authorization controls.
- Strengthened design quality through architecture reviews, reusable guidance, mentoring, onboarding assets, and chapter enablement.
- Contributed public-safe AI architecture proof assets covering retrieval, guardrails, evaluation, governance, and Azure-first reference patterns.

Capabilities: Solution Architecture, Identity, API Architecture, Governance, AI Enablement

### Solution Architect - Vodafone

Sep 2020 - Dec 2021

Owned solution design for digital onboarding, sales, and reusable campaign enablers during high-dependency delivery periods.

- Led architecture for Digital Onboarding Phase B, including remote eKYC, digital ID upload, liveness checks, and digital signature flows.
- Coordinated digital sales and prepaid onboarding releases across product, engineering, compliance, and channel stakeholders.
- Established early couponing architecture patterns that later supported broader campaign and referral capabilities.

Capabilities: Digital Onboarding, eKYC, Commerce Journeys, Integration Design

### Quality, Agile & Transition Lead - IRI

Aug 2017 - Aug 2020

Progressed through QA leadership, Scrum Master, and transition coordination roles, improving release readiness and knowledge continuity in distributed teams.

- Defined test strategy, test plans, defect management practices, and release-readiness controls for cross-functional delivery.
- Facilitated Scrum ceremonies, unblocked delivery, and supported backlog clarity with product and engineering teams.
- Built structured knowledge-transfer assets to reduce dependency on internal subject-matter experts during team transition.

Capabilities: QA Leadership, Agile Delivery, Release Readiness, Knowledge Transfer

### CRM Delivery & Integration - Accenture Greece

Jul 2014 - Jul 2017

Built telecom delivery, requirements, integration, and CRM foundations across production support, analysis, and consulting roles.

- Supported large-scale CRM changes from production support and QA into integration analysis and CRM consulting.
- Managed scope, milestones, dependencies, and reporting across parallel telecom change initiatives.
- Translated business needs into implementation-ready solution paths and supported stable releases through structured test and defect governance.

Capabilities: CRM, Integration Analysis, Program Delivery, Release Management

### Teaching, Writing & Early Engineering - Early Career

2006 - Jul 2014

Built the communication and problem-solving base behind later architecture work through teaching, educational publishing, and early technical roles.

- Taught programming, mathematics, and university lab sessions, building strong explanation and mentoring habits.
- Copyedited educational and technical material, strengthening structured writing and quality discipline.
- Contributed to early PHP development, database support, and infrastructure research.

Capabilities: Technical Communication, Mentoring, Early Engineering, Applied Mathematics

## Capabilities

### Architecture & Solution Design

- Enterprise architecture and solution architecture
- Target-state alignment and design trade-offs
- Architecture governance, design reviews, and decision support
- Non-functional requirements, security, privacy, and operability

### Platforms, Integration & Cloud

- API architecture, identity, consent, and authorization patterns
- Digital platform modernization and reusable enablers
- Cloud-native API management and observability patterns
- Enterprise integration across channels, squads, and partners

### Delivery Leadership & Quality

- Stakeholder alignment across product, engineering, security, and leadership
- Agile delivery, release readiness, dependency and risk management
- QA strategy, defect governance, SIT, UAT, and production acceptance
- Mentoring, onboarding, knowledge bases, and architecture chapter enablement

### Practical AI Enablement

- Copilot and agent workflow enablement
- Prompt engineering and reusable AI work patterns
- Retrieval, guardrails, evaluation, and governance reference assets
- Azure-first enterprise AI and data-platform architecture framing

## Credentials

- Prompt Engineering for Practitioners | Simplilearn | Feb 2026
- Create agents in Microsoft Copilot Studio | Microsoft Applied Skills | Feb 2026
- TOGAF Enterprise Architecture Practitioner | The Open Group | Aug 2025
- TM Forum Open API Foundation Level Certification | TM Forum | Mar 2024
- Certified SAFe 6 Architect | SAFe by Scaled Agile, Inc. | Nov 2023 | Expired Nov 2024

## Education

- Diploma in Applied Mathematics and Physical Sciences | National Technical University of Athens | 2005 - 2014
  - Thesis on project management problems solved by Operational Research methods.
- Erasmus Programme in Mathematics | King's College London, University of London | 2009
- Analyst School | Accenture Business and Systems Integration Analyst School | 2015