Tata Consultancy Services
IT Application Support Engineer — incident handling, monitoring, troubleshooting, working instructions and Python tools for service improvement.
PROFESSIONAL PORTFOLIO
Joseph Radjapa
IT Engineer & AI Automation
Infrastructure · Python · LLM Applications · AI Voice Agents
IT Engineer with 9+ years in production environments, now developing practical AI and automation applications with Python, LLM APIs, voice technologies and cloud services.
PythonOpenAI APILLM / LangChainAzure AI & SpeechRetell AIn8nCloudflare
ABOUT ME
Infrastructure expertise, applied to AI solutions
I have worked in different environments including NTT, CIC Bank, Orange Cyberdefense and Tata Consultancy Services in Ireland.
I enjoy searching, understanding, helping people and sharing knowledge. I like teamwork, but I also appreciate having tasks I can own and complete independently.
I build practical AI projects using Python, OpenAI APIs and speech services, while continuing to study LLM engineering, LangChain and Azure AI fundamentals.
SystemsWindows, Linux, VMware
NetworkingCisco, Palo Alto, troubleshooting
IT ProductionMonitoring, operations, procedures
AI & AutomationPython, APIs, LLMs, voice agents
EXPERIENCE
Professional journey
A quick overview — the CV and LinkedIn profile contain the full details.
Orange Cyberdefense
Production Engineer — Windows/Linux, VMware, Cisco, Fortinet, Centreon, storage, SSL certificates and technical documentation.
CIC Crédit Mutuel
IT Production Engineer — banking production operations, schedulers, monitoring, Windows Server, VMware and international support.
NTT / Dimension Data
Network & Security Support — Cisco, Palo Alto, datacenter interventions, customer sites and infrastructure deployment projects.
PROJECTS & SKILLS
AI, automation and real-world projects
Personal projects, prototypes and deployed applications. Each reflects hands-on work; technologies still being learned are clearly identified.
🧠
Python LLM Agent
Hands-on experimentation with Python, the OpenAI API and function/tool calling.
- Local command-line assistant in Python
- Function calling and structured JSON arguments
- File creation tool, token and cost tracking
🎙️
AI Voice & Business Workflows
Exploring conversational AI for customer intake and actionable follow-up.
- Retell AI, Twilio and n8n workflows
- Customer information collection and summary
- Email handoff to a business owner; prototype use case
🤖
English Buddy / Yuki
AI-powered English learning PWA for four family profiles, with individualized learning levels and a voice teacher.
- Four learner profiles and separate progress
- Azure Speech neural voice (AnaNeural)
- Cloudflare-hosted PWA; iterative development
⚙
Python Automation
Small Python tools created to improve IT operations and reduce repetitive tasks.
- Ticket monitoring and alerts
- Email generation tools
- Ticket tracking and statistics
- Pre-closure quality checks
- Process improvements
☎
Anvisha Digital
Personal project focused on prospecting, automation and AI voice workflows for small businesses.
- Business prospecting workflows
- Automation with n8n
- Twilio phone number and call routing
- Retell AI voice agents
- Automated follow-up workflows
🛒
E-commerce
Hands-on knowledge and personal practice with online stores and e-commerce workflows.
- Shopify setup and customisation
- Product research and testing
- Supplier product import and DSers
- Stripe payment setup
- Product catalogue and orders
- Facebook / Meta Ads and Google Ads
⌘
Web & Personal Projects
Personal projects used to learn, create and test new technologies.
- Personal portfolio on Cloudflare
- Family Notes PWA
- Web page creation and customisation
- Cloudflare deployment
- Basic API and automation integrations
TECHNICAL AREAS
Tools and technologies I have worked with
Hands-on infrastructure experience, personal AI projects, and technologies currently being studied are shown together; not all represent the same proficiency level.
Windows ServerLinuxVMwareCiscoPalo AltoServiceNowCentreonMonitoringPythonCloudflareShopifyDSersStripeTwilioRetell AIn8nMakeHTML / CSSOpenAI APILLM APIsLangChain (learning)Azure AI Fundamentals (studying)Azure Speech SDKSpeech-to-Text / Text-to-SpeechAI Voice AgentsJSON / Function CallingFirebaseCanvaMeta Business Manager
CONTACT
Let's connect
Open to junior AI automation / LLM application opportunities as well as IT engineering roles. Happy to discuss projects and practical experience.