Open to opportunities

sitheek Mohamed Arsath

@sitheekmohamedarsath

Full‑stack software engineer specializing in AI/LLM integrations, building web apps with scalable backends and modern frontends.

Sri Lanka

Message

What I'm looking for

I seek roles where I can build full‑stack products that combine modern web frameworks and AI/LLM features, in collaborative teams that value clean architecture and impact.

I am a full‑stack software engineer with hands‑on experience integrating generative AI, RAG pipelines, and vector databases into production web applications. I have built end‑to‑end systems—APIs with FastAPI, responsive frontends with Next.js/Svelte, and AI features using OpenAI and Google Gemini—focused on usability and secure authentication.

My work includes developing HR automation bots, an AI tutoring platform, and appointment/booking systems that leverage Google OAuth, real‑time WebSockets, and multiple third‑party calendar integrations. I prioritize maintainable code, SOLID principles, and delivering measurable product improvements through AI and modern web technologies.

Experience

Work history, roles, and key accomplishments

Current

AI Full-Stack Engineer

Current

12TH.ai

Aug 2024 - Present (1 year 2 months)

Built an AI tutoring platform with FastAPI backend, RAG pipeline (Google Gemini + ChromaDB + Weaviate) and a Next.js real-time chat frontend to deliver factually grounded answers for A/L subjects.

fastAPI Next.js Gemini ChromaDB Weaviate WebSockets PostgreSQL RAG OAUTH2

Software Engineer

Zelora Pvt Ltd

Feb 2025 - Sep 2025 (7 months)

Contributed as a Full-Stack and AI engineer building frontend and backend features, integrated Google Calendar/Meet, Zoom and Microsoft Teams APIs, and implemented HR AI bot features (RAG) to automate leave management and roster tasks.

Svelte Next.js fastAPI ChromaDB Weaviate PostgreSQL

Full-Stack Developer

Maryam Medicare

Apr 2025 - Aug 2025 (4 months)

Developed a doctor appointment platform with patient scheduler and role-based admin dashboard, implemented FastAPI RESTful APIs with JWT auth and PostgreSQL, and delivered a responsive Next.js/TypeScript frontend.

fastAPI Next.js TypeScript PostgreSQL SQLAlchemy JWT React REST APIs Responsive Design

Full-Stack Developer

Full Stack Blog App

Jan 2024 - Mar 2024 (2 months)

Developed a dynamic blog platform using Next.js and MongoDB, built RESTful APIs, and applied SOLID principles to ensure maintainable backend and efficient React frontend state management.

Next.js MongoDB React REST APIs SOLID JavaScript Express

Education

Degrees, certifications, and relevant coursework

University of Jaffna

Bachelor of Science in Engineering, Computer Engineering

2021 - 2025

Grade: 3.3/4

Activities and societies: Studied software engineering concepts, AI integration, and full-stack development; completed projects involving FastAPI, Next.js, RAG pipelines, and vector databases.

Pursuing a BSc.Eng (Hons) in Computer Engineering with a focus on software engineering and AI; expected graduation September 2025.