Firas Jday
Senior Automation & AI Engineer
About Me
I am an Automation & AI Engineer with over 5 years of experience building intelligent, scalable automation solutions that save time, cut costs, and drive efficiency. I specialize in connecting all your apps to create seamless, 'hands-off' workflows. My solutions have directly resulted in a 92% improvement in operational efficiency for clients. From migrating legacy VBA systems to modern cloud architectures to building autonomous AI agents, I help businesses automate the mundane so they can focus on growth.
Professional Focus
Designing and implementing scalable Automation Workflows (n8n, Zapier, Make)
Building custom Google Workspace Add-ons & Apps Script Solutions
Developing AI Agents & LLM Integrations (LangChain, OpenAI)
Architecting Custom Backends (FastAPI, Node.js, Python)
Optimizing Business Logic & Data Pipelines
Languages
Phone
+21629449117Location
Tunis, Tunisia
Working Hours
Flexible hours, available for global consulting
Automation systems that eliminate manual ops — without brittle glue.
I design and implement production-grade workflows (n8n), Google Workspace automation (Apps Script), and AI agents (LangChain/OpenAI) that integrate cleanly with your existing stack.
Services
Automation Audit & Roadmap
Turn scattered manual processes into a prioritized, executable automation plan.
Best for: Ops-heavy teams and founders who want clarity before building.
- Clear map of bottlenecks, handoffs, and failure points
- Automation backlog with ROI-driven prioritization
- Architecture recommendation (n8n vs. scripts vs. custom services)
- Process map + system inventory
- Automation blueprint (events, data model, integrations)
- Implementation plan with milestones
n8n Workflow Build & Hardening
Production-ready workflows with reliability, observability, and safe retries.
Best for: Teams that need automation that runs daily without babysitting.
- Stable workflows with error handling and idempotency
- Clean integration layer across tools (CRM, Email, Sheets, DBs)
- Documentation for operations and iteration
- Workflows with retries, dead-letter handling, and alerts
- Reusable nodes/modules for your core integrations
- Runbooks + handover session
Google Workspace Automation Systems
High-leverage Apps Script + Sheets systems for reporting, consolidation, and ops.
Best for: Teams operating on Google Sheets who need speed and correctness at scale.
- Faster sheet consolidation and reporting workflows
- Reduced manual manipulation and copy/paste pipelines
- Reliable integrations with external systems
- Apps Script automation (batching, caching, safeguards)
- Custom menus / add-ons (when needed)
- Integration to APIs (Sheets, Drive, Gmail)
AI Agents for Business Workflows
AI agents that execute real work: triage, enrichment, routing, and responses.
Best for: Teams ready to operationalize AI beyond chat demos.
- Agents that can call tools/APIs and follow business rules
- RAG-based knowledge retrieval for internal docs
- Safety controls: guardrails, logging, evaluation
- LangChain agent + tool integrations
- Prompting + policy layer aligned to your workflow
- Monitoring + iteration loop
Selected Work (Upwork)
Développeur n8n automatisation + agent IA (French)
Automation workflows + AI agent behaviors integrated into business operations.
- Designed multi-step n8n orchestration with robust failure handling
- Integrated LLM decision-making into workflow steps (tool calls, routing)
- Improved operational throughput by removing manual handoffs
AppsScript Algorithm — Sheet Consolidation
High-performance consolidation logic for complex Google Sheets reporting.
- Built consolidation logic with batching and caching strategies
- Reduced fragility of spreadsheet workflows through validations
- Added API integrations for automated data sync
B2B eCommerce Software Engineer (Store, Inventory, eBay Automation, CRM)
Custom B2B commerce systems with vendor inventory handling and automation.
- Implemented vendor inventory synchronization and operational workflows
- Integrated marketplace automation (eBay) where applicable
- Built CRM automation around orders, vendors, and customer comms
React JS Designer
UI implementation and iteration for production React experiences.
- Delivered responsive UI components and interaction refinements
- Improved UX consistency with reusable design-system patterns
- Iterated quickly with stakeholder feedback loops
Experience
Senior Automation Consultant (n8n & AI Agents)
Designing and deploying intelligent automation agents for French market clients, integrating LLMs with business workflows.
Key Achievements
- Built custom AI agents using LangChain and OpenAI to automate complex decision-making processes
- Orchestrated end-to-end business workflows in n8n, connecting CRM, Email, and Project Management tools
- Reduced manual data processing time by 90% for client operations
- Implemented RAG (Retrieval-Augmented Generation) systems for internal knowledge base automation
Technologies & Skills
Apps Script Algorithm Specialist
Developing high-performance algorithms for Google Sheets consolidation and data processing.
Key Achievements
- Engineered complex sheet consolidation algorithms handling 100k+ rows of data
- Optimized Apps Script execution time by 80% using batch operations and caching
- Created custom add-ons for Google Workspace to streamline reporting workflows
- Integrated Google Sheets with external APIs for real-time data synchronization
Technologies & Skills
B2B eCommerce Software Engineer
Engineering custom B2B store solutions with advanced vendor inventory handling and automation.
Key Achievements
- Developed custom B2B store with vendor inventory management and eBay automation
- Implemented real-time inventory syncing across multiple sales channels
- Built a custom CRM module for managing vendor relationships and orders
- Automated order processing and shipping label generation
Technologies & Skills
Senior Software Engineer
Leading development of enterprise-grade pricing optimization platform serving 50+ retail clients.
Key Achievements
- Architected microservices ecosystem with Java 17 & Spring Boot
- Developed configurable pricing rules engine supporting dynamic business logic
- Deployed containerized applications on GKE using Helm charts
- Automated real-time data synchronization workflows using Google Cloud Functions
Technologies & Skills
Senior JavaScript Developer & AI Expert
Led the development of automated workflow solutions and enterprise web applications.
Key Achievements
- Orchestrated complex business automations using n8n and Google Apps Script
- Developed full stack internal tools with React.js and Next.js
- Engineered conversational AI agents using OpenAI and LangChain
- Migrated legacy VBA systems to modern Node.js architectures
Technologies & Skills
Senior Javascript Developer
Specialized in AI automation solutions and scalable backend systems.
Key Achievements
- Automated business workflows with Google Apps Script (35% efficiency improvement)
- Deployed Node.js/PostgreSQL systems on Google App Engine
- Developed automated BigQuery documentation system
- Reduced manual errors by 90% through intelligent automation
Technologies & Skills
Flight Module Development Project
Developed flight booking module for a major travel agency.
Key Achievements
- Integrated Amadeus GDS for real-time flight availability and booking
- Built responsive frontend for flight search and results display
- Implemented secure payment gateway integration
Technologies & Skills
Credentials
Professional Certifications
Software Engineer Certificate
HackerRank • Sep 2025
Node.js (Intermediate) Certificate
HackerRank • Jan 2024
Skills & Expertise
Technical Skills
Backend & APIs
Frontend & Mobile
Cloud Platforms
Automation
DevOps & Infrastructure
Databases
Security & Auth
Testing & Quality
Blockchain & AI
Additional Experience
Featured Projects
Banana NFT: Blockchain Backend with Merkle Verification
Intermarché: Enterprise Data Processing Infrastructure
Gestion des Stock: Google Sheets Automation Addon
Travelbeds: Distributed Microservices Ecosystem
XStake: DeFi Staking Platform
Traveltodo Flights: Global Flight Booking Engine
Testimonials & Recommendations
Jérémy Rochot
Data Centric Engineer
Jérémy managed FIRAS directly
Firas is a dedicated and passionate developer who becomes unstoppable once he's on a project. As a Senior Full Stack & Cloud Data Engineer specializing in Java, Spring Boot, and modern web technologies, he consistently delivers high-quality, scalable solutions. His expertise in cloud architecture and data engineering makes him invaluable for enterprise projects. I wholeheartedly recommend him for any challenging development role.
ahmed dalhoum
Financial Engineer @ Warden Labs | Top Rated Plus Blockchain developer
ahmed worked with FIRAS on the same team
Firas is one of the most talented full stack developers I've had the pleasure of working alongside. His technical skills span from Java Spring Boot microservices to React frontends, and he consistently delivered high-quality work. His deep understanding of both backend and frontend ecosystems, combined with his cloud expertise, makes him exceptional. I highly recommend him for any team seeking a top-tier full stack engineer!
Shah Fahad
React Native | Next Js
Shah worked with FIRAS on the same team
Firas is a great guy. He is a skillful developer handling complex enterprise projects, building scalable architectures and managing cloud infrastructure with expertise.
Maher Mahouachi
Freelance Expert in Google Workspace & AppSheet | Add-on Developer | Team Leader in Automation & SaaS Solutions
Maher managed FIRAS directly
I had the pleasure of working with Firas Jday on several enterprise projects, and I can confidently say that he is one of the most talented and dedicated engineers I have ever worked with. Firas is not only an expert in Java Spring Boot and cloud technologies but also an innovative full stack developer with a passion for solving complex problems with clean, efficient code. His expertise in microservices architecture and data engineering is unparalleled, and he consistently transforms business requirements into scalable, enterprise-grade solutions. Firas possesses a unique ability to break down complex technical challenges and deliver creative, well-architected solutions that truly make a difference. Whether working independently or leading a team, he approaches every task with determination, and his technical knowledge spans from backend systems to modern frontend frameworks. I highly recommend Firas for any opportunity where top-tier engineering skills and a problem-solving mindset are needed. He will undoubtedly be a valuable asset to any enterprise team or project.
n8n Automation & AI Agent
Firas is an absolute pro. Working with him is a breeze as he understands your request and does his best to resolve any issues. We will definitely be using him again!
Workflow Automation
Excellent skills, he fixed my n8n workflow in no time!
Node.js & AI Builder
Proficiency is absolutely superb! Highly recommended. Absolute superb freelancer. He fixed our problem quickly and efficiently.
Senior Node.js Developer
Firas is a reliable Freelancer, very skilled as node.js developer. We will brainstormed the development strategy then he worked in autonomy and efficiency. I'll recommend him and look forward to working with him again.
Get in Touch
I'm always interested in new projects and opportunities. Feel free to reach out if you want to work together or just say hello!
Phone
+21629449117Location
Tunis, Tunisia
Working Hours
Flexible hours, available for global consulting
Send a Message
Direct Communication
Your message goes directly to my personal inbox. I typically respond within 24 hours.
Having trouble with the form? You can also reach me directly at jdfyras@gmail.com
Frequently Asked Questions
I build intelligent, end-to-end automation workflows that connect your existing tools (CRM, Email, Spreadsheets) to eliminate manual work. Using n8n, Zapier, and custom scripts, I automate complex business logic, from lead processing to inventory management, saving clients 20+ hours per week.
I develop custom AI agents using LangChain and OpenAI that can understand natural language, make decisions, and execute tasks. Whether it's an intelligent customer support bot, a document analysis tool, or a personalized outreach agent, I integrate AI directly into your daily operations.
Yes, I am a Google Apps Script expert. I build custom add-ons, automate Google Sheets with complex algorithms, and create seamless integrations between Gmail, Drive, and other Google services to supercharge your team's productivity.
Absolutely. When no-code tools aren't enough, I build custom web applications and backends using React, Node.js, and Python. I specialize in building B2B portals, internal tools, and scalable APIs that solve specific business problems.
We start with a discovery call to understand your bottlenecks. I then propose a tailored roadmap—whether it's a quick automation fix or a full-scale system overhaul. My goal is to deliver high-impact results quickly.
© 2026 Firas Jday. All rights reserved.