Periklis Psillakis

Full Stack Developer @onwebchat

Database DeveloperFrontend DeveloperSystem ArchitectSystem AnalystWeb DeveloperBackend DeveloperIT

Hi, I’m Periklis Psillakis, a Software Engineer with more than 25 years of experience, evolving from early Java development into the full spectrum of modern web technologies. I began working with web technologies in the early 2000s, first within a business environment in Athens and later at NTUA (National Technical Univerity of Athens), participating in European projects focused on software systems and security. Between 1999–2002, I served as a teaching assistant in several laboratory courses at the ECE Department of NTUA, as well as in other NTUA departments. Founder @ smsbox.gr (2008 – Present): Built one of Greece’s leading bulk SMS platforms. I leveraged open-source software to create a robust, high-availability system that remains a market leader 15+ years later. Creator @ onWebChat.com (2016 – Present): Developed a global SaaS platform for real-time customer support and AI-driven engagement. My Tech Stack: Backend: Advanced Node.js development and API architecture. Frontend: Building responsive, high-performance SPAs with Angular. Mobile: Cross-platform mobile app development (Flutter). AI: Integrating intelligent chatbots to automate 24/7 customer service. Infrastructure: Database engineering and scaling web services for high traffic.

People also viewed

Compliance optimization lead

Data EntryCall CenterCustomer Service

Part-time university administrator @North-West University / Noordwes-Universiteit

Voice OverEditorProofreader+21 tags

María Cecilia Del Popolo

Analista política. Escritora

EditorCopywriterCopywriting+4 tags

Senior Logistics Coordinator @Randstad USA

Customer ServiceData EntryTranslator+1 tags

Devon Scarpulla

Event producer & marketing

MarketingEvent Producer

Deputy general manager @Viatris

ConsultingEngineerIT+1 tags

Graphic Designer @com/in/miraj-islam-090b95172

Brand DesignerUX/UI DesignerGraphic Designer+2 tags

Chief of Engineering @Patriot Energy

Video Producer @Mindvalley

🏐 SportsCustomer Care SpecialistCustomer Success Manager+7 tags

Feedback from Periklis’s ex-colleagues

user-post-1

user-post-2

user-post-3

Keep in touch with meI'm using Intch to connect with new people. Use this link to open chat with me via Intch app

Work Background

Computer Software Engineer

REGION OF CRETEComputer Software Engineer

Oct. 2016 - Mar. 2025Khaniá, Crete, GreeceComputer Science department

Founder - Full stack developer

onWebChatFounder - Full stack developer

Sep. 2015Greece, ChaniáProduct Innovation: Conceptualized and built a global Live Chat and AI Chatbot SaaS from the ground up. Modern Tech Stack: Engineered a high-performance platform using Node.js, Angular, and MariaDB/MySQL. AI Integration: Developed and deployed automated AI Chatbots using RAG architecture and OpenAI APIs to provide 24/7 automated customer support. Scalable Architecture: Optimized the entire lifecycle of the application, focusing on low-latency data handling and high-availability server management.

Founder - Full stack developer

smsbox.grFounder - Full stack developer

Jun. 2008 - Nov. 2016Greece, ChaniáPlatform Orchestration: Designed, developed, and maintained a leading Greek bulk SMS SaaS platform from scratch. Full-Stack Ownership: Engineered the entire system using an open-source stack of PHP, MySQL, and Linux. High-Volume Messaging: Optimized backend performance to handle reliable, large-scale message delivery to mobile networks. End-to-End Management: Oversee the complete product lifecycle, including technical architecture, security, and long-term system stability.

Software Engineer

BTSSoftware Engineer

Jun. 2006 - Jun. 2007Athens

Software Engineer

National Technical University of AthensSoftware Engineer

Dec. 2001 - Feb. 2005AthensResearch and development for the European project PACWOMAN (Power Aware Communications for Wireless Optimised Personal Area Networks)

Web Developer

InnovartWeb Developer

Oct. 2000 - Feb. 2001Athens

Requests

Touchpoint image

0

Personal Pitch

AI Chatbot Specialist for Enhanced Customer Engagement

Intch is a Professional Networking App for the Future of Work

300k+ people

130+ countries

AI matching

Get Intch if you'd like to

Get Recommended to New Customers

Connect with Like-Minded People

Find a side project

Reach Top Niche Experts

Find Jobs on a Hidden Market

Find a Perfect Co-Founder

Find a Trusted Mentor

Hire Top Global Professionals

See more people like Periklis on Intch

IT

1026939 people

16

User Experience Researcher @ BIC

18

Engineering Project Manager @ Atlassian

19

Commercial Growth Analyst - RGM - Amazon Expert @ Olyra Foods

ITBackend Developer

203052 people

26

Software Engineer @ Gixoft.gr

19

Web developer

16

Software Engineer | Technical Leadership @ Aralu