Hi, I'm Lotfi Jebali
Experienced Full-Stack Developer & Tech Lead with 5 years of experience designing, building, and scaling SaaS, fintech, and internal tools. Expert in modern web technologies and cloud infrastructure, including Next.js, FastAPI, and AWS.
About Me
I'm an experienced Full-Stack Developer & Tech Lead with 5 years of experience designing, building, and scaling SaaS, fintech, and internal tools. I have a proven record of integrating AI/LLM features to automate complex workflows and scaling systems to deliver high-impact results, consistently reducing operational costs and improving productivity.
I specialize in modern web technologies and cloud infrastructure, including Next.js, FastAPI, and AWS. I have expertise in architecting multi-tenant systems, automating CI/CD pipelines, and integrating AI/ML features into production systems. Proven ability to align engineering output with business KPIs and mentor teams to high performance.
Technologies I work with:
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Featured Projects
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Professional Experience
Leading architecture and scaling SaaS platform to serve enterprise clients with proven results in reducing operational costs and improving productivity.
Key Responsibilities:
- Launched SaaS platform 1 month ahead of schedule, successfully onboarding the first 3 paying clients
- Designed and implemented CI/CD pipelines with AWS Lambda, reducing deployment time by 60%
- Mentored a team of 9 developers, improving code review turnaround and PR quality by 40%
- Developed a custom monitoring dashboard that reduced bug detection time by 35%, significantly enhancing client support
- Directed the development of an AI-driven job-matching tool, cutting recruiter workload by approximately 25%
Technologies Used:
Contributed to the development of scalable backend and frontend features for core SaaS products.
Key Responsibilities:
- Contributed to the development of scalable backend and frontend features for core SaaS products
- Optimized static asset storage by migrating to AWS S3, reducing server load by 30%
- Collaborated with senior developers on architecture decisions
- Implemented responsive design with mobile-first approach
- Participated in code reviews and agile development processes
Technologies Used:
Independently worked on multiple B2B SaaS, fintech dashboards, and internal tooling projects with measurable business impact.
Key Responsibilities:
- Built an internal tool for monitoring, deploying, and rolling back microservices (FastAPI + PostgreSQL + Redis + Next.js)
- Developed a dashboard to centralize knowledge, track employee tasks, and automate reporting (Node.js + Express + MongoDB + React)
- Architected a fintech dashboard to aggregate market data and generate predictive insights using an LLM (FastAPI + PostgreSQL + Kafka + Next.js)
- Cut deployment errors by 60% and reduced debugging time by 50% across multiple projects
- Improved team productivity by 30% and cut reporting time by 50% through automation