Resume | Gerasimos Makris

Technical Arsenal

Rapid Development

LovableBoldFirebase StudioMicrosoft Power Platform (Power Apps, Automate)

Cloud & Backend

SupabaseGoogle Cloud Platform (GCP)FirebaseAzureSQL

AI & LLM Ecosystem

Google GeminiMicrosoft CopilotOpenAI ChatGPTPerplexity AIxAI Grok

Frontend & Analytics

HTMLCSSJavaScriptReact (Basic)Google Analytics

Financial Platforms

Fenergo (FenX)SalesforceMicrosoft Dynamics 365Revolut People

DevOps & Tools

REST APIsAgile/ScrumJiraConfluenceTrelloGit/GitHub

Web Development Portfolio

Led the architecture and development of 70+ projects, showcasing expertise in Next.js, Firebase, Supabase, and various frontend technologies, resulting in a diverse and high-quality portfolio.
Engineered a dynamic, multi-page portfolio website with a full administrative backend, secure user authentication, and real-time user engagement features (comments, reactions).
Pioneered the integration of Google's Genkit and Gemini models to develop and deploy AI-powered features, including a context-aware conversational assistant.
Managed the end-to-end client engagement lifecycle, from initial consultation and proposal writing to UI/UX design, full-stack development, and final deployment.

View Full Portfolio

Professional Experience

HBX Group

Remote

GCCO Executive

Jun 2026 - Present

Working within HBX Group’s global TravelTech portfolio (including platforms such as Hotelbeds, Bedsonline, and other distribution solutions), supporting partners and clients across B2B, B2C, and B2B2C models with operational requests related to bookings throughout the full lifecycle (pre-arrival, on-the-spot, post-travel).
Combining front-office and back-office operations to handle cases through multiple channels (phone, email, chat, web) in accordance with defined service deadlines, quality guidelines, and operational protocols, with a strong focus on first-contact resolution and customer satisfaction.
Operating in a multilingual, international environment (Greek, English, Spanish), collaborating with internal teams and external suppliers (direct portfolio, system integrations, and third-party providers) to ensure accurate, timely resolutions and service continuity.
Strengthening key transferable skills in SLA-driven operations, structured problem-solving, stakeholder communication, and process improvement, complementing my background in banking, FinTech, and technology.

g-makris.com

Remote

Freelance AI Developer

Jan 2021 - Present

Initiated as a self-driven learning project (formerly gerasimosmakris.com) to master full-stack development, evolving from a simple static site to a dynamic, professional platform.
Architected and developed the current g-makris.com platform using Next.js, Firebase, and TypeScript, serving as a 'living lab' for testing and deploying new technologies.
Integrated AI features using Google's Genkit and Gemini models to create a context-aware conversational assistant, enhancing user engagement.
Managed the full freelance client lifecycle, from initial consultation and project scoping to UI/UX design, development, and final deployment of custom web solutions.

Ebury

Spain

KYC Systems Administrator

Nov 2024 - May 2025

Configured and validated Fenergo (FenX) KYC workflows, translating complex regulatory requirements into system logic, reducing system processing errors by 20%.
Acted as the bridge between Compliance and the Technical Product teams, identifying bugs in the onboarding flow and helping define requirements for system patches.
Utilized data analysis techniques to validate system outputs, reducing remedial findings by 30% through improved data evidence standards.

Plutus.it

Remote

Fraud Analyst (Contract)

Jun 2024 - Oct 2024

Designed and implemented fraud detection rules (logic-based countermeasures), directly reducing the institution's risk exposure.
Analyzed transaction datasets to identify patterns and anomalies, providing the data-backed intelligence needed for strategic risk decisions.
Partnered with Cybersecurity teams to investigate complex technical fraud vectors.

Viva.com

Marousi, Attiki, Greece

ChatBot & Self-Serve Specialist

Feb 2024 - Jun 2024

Designed and improved self-service interfaces to enhance user experience (UX) and ensure accessibility for all users.
Collaborated with cross-functional teams (developers, product managers, customer support) to align self-service features with user needs and business goals.
Identified and mitigated security threats, ensuring data integrity, and assisting in first-line diagnostics and incident report escalation as part of the product team.

Account Operations & KYC Support Consultant

Sep 2023 - Feb 2024

Managed complex customer account and KYC queries according to relevant processes, ensuring accurate and timely processing within defined service level targets.
Investigated and resolved escalated customer issues and KYC cases, determining root causes, and providing appropriate solutions.
Performed internal tasks related to customer account status, transactions, and KYC processes, including account reconciliations and transaction monitoring.

National Bank of Greece

Greece

Universal Process Administrator

Oct 2022 - Aug 2023

Delivered high-quality customer support across digital channels.
Executed KYC and CDD procedures with precision, ensuring compliance.
Re-audited banking processes to identify inefficiencies and enhance compliance.

Branch Bank Employee (Internship)

Jul 2020 - Aug 2021

Provided comprehensive client service across diverse customer segments.
Conducted KYC and CDD checks to maintain regulatory compliance.
Managed Teller and Pay-All payroll systems for transaction processing.

Piraeus Bank

Greece

Operations Specialist

Aug 2021 - Sep 2022

Supported clients across retail, corporate, and SME segments.
Led fraud prevention initiatives and re-audited procedures.
Oversaw the Pay-All payroll system, ensuring accurate execution.

Grecotel Hotels & Resorts

Greece

Hotels & Resorts Team - Room Excellence

May 2018 - Oct 2019

Specialized in timely and accurate delivery of guest food orders.
Memorized menu items and prices to provide informed service.
Contributed to overall service efficiency and customer satisfaction.

Vodafone

Greece

Internet Solutions Specialist

Oct 2016 - Aug 2017

Designed tailored internet solutions for businesses and individuals.
Troubleshot and optimized network performance for seamless service.
Collaborated with sales teams to develop proposals and close deals.

OTE Group of Companies (HTO)

Greece

Technical Solution Specialist

Jun 2016 - Oct 2016

Specializing in customer guidance and advising, with responsibilities including task performance and complaints management. Trained colleagues in information tools and customer service practices, while informing customers about telecommunication products and contracts.
Resolved product technical issues and maintained communication with the back office. Played a role in upscaling customer contracts and managing the COSMOTE app system. Provided comprehensive customer support via phone and email, ensuring effective management and guidance of clients in the app system.

Education

Double Master's Degree in Business Administration, FinTech & Blockchain

Universidad Isabel I (2024 - 2025)

Bachelor's Degree (T.E.) in Economics, Administration, and Communication of Cultural & Tourism Units, specializing in Communication of Cultural Units

University of Patras (2016 - 2023)