Yiorgos Tzirtzilakis

CTO

Athens, Greece21 yrs 6 mos experience
AI EnabledAI ML Practitioner

Key Highlights

  • Shaped digital strategy for billion-dollar company.
  • Initiated enterprise-wide AI strategy for multinational group.
  • Redesigned fleet management product, slashing costs by 75%.
Stackforce AI infers this person is a SaaS and Fintech expert with a strong focus on enterprise architecture and digital transformation.

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Skills

Core Skills

Enterprise ArchitectureIt StrategyProject ManagementBusiness StrategyCorporate FinanceStrategic PlanningActivity Based Costing

Other Skills

Technology ArchitectureCorporate GovernanceTechnical LeadershipStakeholder ManagementCommunicationChange ManagementTechnology Change ManagementPeople ManagementDevOpsBig DataRecruitingDistributed SystemsInvestment DecisionsSoftware DevelopmentSoftware Design

About

I help C-level executives and senior leaders navigate high-stakes technology transformations that are blocking growth, burning capital, and threatening critical milestones. Companies bring me in when they face complex challenges that sit at the intersection of technology, strategy, and people. My focus is on restoring momentum by architecting solutions and uniting cross-functional teams to execute them. What I tackle: - Large-Scale Transformations Managing the immense complexity of enterprise-wide technology shifts, such as infrastructure migrations or post-merger integrations. - Technology Crises Stabilizing systems and projects that threaten launches, funding, or corporate reputation. - Product Stagnation Overcoming legacy systems and technical debt that prevent innovation and the release of new features. - AI Strategy & Implementation Moving from abstract ideas to a concrete AI roadmap that drives business value. My approach is built on two axis: 1/ Immediate results. You need to solve the immediate crisis to survive the day. 2/ Sustainable change. The most durable results happen by helping the right people from different functions to work together and drive sustainable change. Recent Results & Experience: - Shaped the digital strategy for a billion-size company, to effectively allocate 8-figure investments and launch their first custom-developed product. - Initiated and shaped the enterprise-wide AI strategy for a multi-national group, synthesizing over 100 distinct opportunities into a unified, actionable roadmap. - Slashed total ownership cost by over 75% while redesigning a fleet management product for a car leasing startup to handle 10x growth. - Shipped first-to-market features for a B2B growing startup, targeting millions in new ARR. Facing a technology milestone you can't afford to miss? DM me to book a 90-minute Strategy Session.

Experience

Accenture

Lead Enterprise Architect

Apr 2024Present · 1 yr 11 mos

  • Working for PPC Group Digital Strategy and Enterprise Architecture
Enterprise ArchitectureTechnology ArchitectureCorporate GovernanceTechnical LeadershipStakeholder ManagementCommunication+3

Silvare

Lead Enterprise Architect

Apr 2024Present · 1 yr 11 mos · Athens, Attiki, Greece · Hybrid

Corporate GovernanceStakeholder ManagementEnterprise ArchitectureTechnical LeadershipCommunicationTechnology Architecture+1

Flexcar

Director of Engineering

Dec 2022Apr 2024 · 1 yr 4 mos · Athens, Attiki, Greece

  • Flexcar is a flexible car leasing company, with operations in Italy, Greece, Cyprus and Mexico.
  • Led the design, the team onboarding, and the development of a custom Vehicle Tracking and Management Solution from scratch, to a fully-fledged solution within 9 months.
  • Redesigned the data ingestion of the IoT fleet using AWS Timestream, Kafka, and Sockets resulting in a 75% cost reduction and a 10x increase in data processing capacity nearing 1 billion data points daily.
  • Designed and implemented a first-in-market mileage tracking algorithm targeting a benefit of 1.5 million euros.
  • Changed the vehicle tracking technology strategy by introducing a new IoT vehicle approach and enabling the OEM data streaming capability to respond to changing conditions.
  • Architected and designed a custom fully fledged loyalty application with web and mobile clients, integrated with customer events from the core CRM system.
People ManagementDevOpsBig DataIT StrategyRecruitingEnterprise Architecture+14

Freenow

Engineering Manager (BEAT operations in Latam)

Feb 2022Nov 2022 · 9 mos · Greece

  • Beat was the fastest-growing ride hailing and fleet manager in Peru, Chile, Argentina, Colombia and Mexico.
  • Created technical roadmap that improved the conversion on the driver registration for 50k drivers over 5 LATAM markets.
  • Championed the use of Machine Learning models in the registration flow to automate manual steps by up to 70% and built a proof of concept.
  • Built and developed a cross-functional team that delivered progressively complex assignments with an accelerating pace.
People ManagementDevOpsBig DataIT StrategyRecruitingEnterprise Architecture+14

Piraeus bank

2 roles

Manager @Innovation Technology & Systems Architecture

Promoted

Jun 2020Jan 2022 · 1 yr 7 mos

  • Part of the top 5% talent implementing agile transformation projects targeting Euro 300 mil revenue increase
  • Executed digitization programs from design to delivery for 5 integrated applications with an estimated saving of €1,5 mil
  • Coordinated and implemented corporate-wide core application changes in security and product features supporting €5 bn bond spin-offs
  • Orchestrated challenging integration projects within a limited time by leveraging team and network expertise
People ManagementDevOpsBig DataRecruitingLean ThinkingEnterprise Architecture+15

Assistant Manager @Innovation Technology & Systems Architecture

Apr 2019Jun 2020 · 1 yr 2 mos

  • Accelerated product delivery by ~10% by identifying and resolving bottlenecks, while facilitating roadmap planning, suggesting a better balance of product features, and setting development priorities for a major Cash Transfer Process initiative
  • Expediated user actions by 34% by contributing product features and enhancing data visualizations
  • Delivered architectural and UX contributions that increased user satisfaction and performance SLIs by 27-83% in major applications
People ManagementDevOpsRecruitingLean ThinkingEnterprise ArchitectureStrategic Planning+12

Exus

2 roles

Tech Leader & Technical Project Manager @Core Banking Systems of Piraeus Bank

Feb 2017Mar 2019 · 2 yrs 1 mo

  • Delivered manual process digitization for the GDPR flow, supported with integrations with internal and external banking systems
  • Championed digitization design for 'Restructuring Business Unit' application supporting complex legal operations for 50 corporate lawyers
  • Designed and introduced custom DevOps software that streamlined 21% of BPM deployments
  • Resolved technical challenges and coordinated in premise large cross-functional team with the overseas development team for the 'Confiscations and Seizures' in a 2-years program
  • Delivered application redesign 'Yield of Confiscations' that improved performance by ~400% and enabled new capabilities for business (delivering multiple times per day instead of once every night)
  • Oversaw the implementation of agile transformation projects
People ManagementDevOpsRecruitingEnterprise ArchitectureTechnical LeadershipCommunication+6

Tech Leader & Senior Software Engineer @Core Banking Systems of Piraeus Bank

Jan 2015Jan 2017 · 2 yrs

  • Incorporated development process improvements affecting 25 developers and expedited software delivery
  • Contributed the first Appian playbook with best practices and conducted 3 training workshops
  • Oversaw the onboarding of new fellow engineers
  • Delivered architectural contributions that simplified software and enhanced user experience in legal processes
  • Increased projects transparency with a new Analysis and Documentation pack for Appian projects
People ManagementDevOpsRecruitingEnterprise ArchitectureTechnical LeadershipCommunication+7

"dia heiros"​ fine art contemporary byzantine paintings and murals

Project Manager & Lead Software Engineer

Apr 2011Jan 2015 · 3 yrs 9 mos · Athens, Greece

  • "Dia Heiros" is an iconic firm with artwork in preserved monuments and prestigious galleries
  • Pioneered the creation of a digital library with assets used in the proposal and execution phase that expedited operations by 35%
  • Designed a pigment analysis software that resulted in a 43% increase in paint production productivity
  • Deployed a new website and an online campaign that resulted in 20 k visitors per month and a 10% increase in revenue
  • Negotiated key contracts and created the pricing policy and terms
People ManagementProject ManagementLean ThinkingTechnical LeadershipCommunicationSoftware Development+5

Dhl express

4 roles

Billing & Collections Manager (Customer Accounting Manager)

Jan 2009Mar 2011 · 2 yrs 2 mos · Athens, Greece

  • Owner for the billing and collections of DHL Express' operations in Greece (~50mil Euro revenue)
  • Managed on a day-to-day basis 23 employees (split between Athens and Thessaloniki) servicing more than 5,000 customers and managing an ~ 1 mil portfolio of risky collectibles
  • Integrated as Technical Program manager 3 billing systems and 2 teams with Global Processing Centre
  • Streamlined processes by championing and leading multiple initiatives and coordinating between local and regional cross-functional teams
  • Improved the business cash flow performance by 3% YoY despite the impact of the credit crisis on our customers
People ManagementProject ManagementLean ThinkingStrategic PlanningCommunicationClear Communications+5

Business Controller (Internal Performance Auditor & Technical Project Manager)

Sep 2007Jan 2009 · 1 yr 4 mos · Athens, Greece

  • Reviewed business operations in 5 departments to drive cost reduction by 15%, and suggested improvements to better align offerings with customer needs
  • Headed the Merging of Financial systems of two business units (Freight, Express)
  • Mitigated a crisis acting as HR interim manager for two months
People ManagementLean ThinkingStrategic PlanningCommunicationClear CommunicationsInvestment Decisions+4

Costing Manager (Service Profitability & Cost allocation Models)

Promoted

Apr 2006Aug 2007 · 1 yr 4 mos · Athens, Greece

  • Reengineered customs processes and oversaw the implementation of a new billing system yielding 150k Euros additional revenue per year
  • Oversaw the implementation of the collection application in the Oracle AR module
  • Audited processes in IT and Customer service department and suggested improvements using lean process management
People ManagementLean ThinkingStrategic PlanningCommunicationClear CommunicationsInvestment Decisions+4

Financial analyst (Group Financial Reporting, Forecasting & Budgeting)

Mar 2004Mar 2006 · 2 yrs · Athens, Greece

  • Selected among the European colleagues to support quality testing for the new reporting solution
  • Designed and developed an software application that automated 85% of reporting activities saving 1,5 days of work and ensuring on-time reporting for monthly financial figures
People ManagementLean ThinkingCommunicationInvestment DecisionsTeam ManagementCoaching & Mentoring+3

Education

MIT Sloan Executive Education

Artificial Intelligence: Implications for Business Strategy — Post Graduate Certificate

Jan 2019Jan 2019

AUEB (Athens University of Economics and Business), Greece

MBA (Full time)

University of Patras

Diploma in Chemical Engineering — Heterogeneous Catalysis

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