AI engineer · Colombo, Sri Lanka · remote worldwide
An AI engineer in Sri Lanka who builds AI systems for your business
I am Nishanthan Janarthanarajah (Nishy), founder of Agent Studio and Flows, and a full stack and AI engineer with 7+ years shipping production software. I design and build AI agents, RAG assistants over your own data and workflow automation, and I run two live AI products, Flows and Agent Studio, that you can put to work today.
7+
years shipping production software
2
live AI products, built end to end
6 → 31
engineers scaled on one team
Enterprise
RAG and AI screening systems in production
Ready today
Two AI systems you can use today
Before you commission anything custom, see if one of my products already solves the job. Both are designed, built and run by me, and both are free to start.
For businesses that want a process to run itself
Flows
“Describe the process. We run it.”
Describe a process in plain English and Flows connects Slack, Google Sheets, Gmail, SMS and any REST API, runs it around the clock and repairs it with Claude when it breaks. 10 runs a month free.
For teams that need an AI agent behind an API
Agent Studio
“Design the agent. We run it as an API.”
Design an orchestrator and sub-agents on a canvas, add guardrails and a prompt-injection shield, and deploy as a versioned API in one click. 7-day free trial.
Custom builds
Custom AI agents and workflows, built for your business
Products when they fit, custom builds when they don't. If Flows or Agent Studio does not cover your process, I design and build the agent, workflow, assistant or integration your business actually needs, on your data and your tools. Every engagement starts with a short discovery so we build the system that moves your numbers, not the one that sounds impressive.
Custom AI agents that do real work
Agents designed around your process: they plan, call your tools and finish the job, from intake and research to drafting and updating your systems, with approval gates so autonomous work stays safe.
RAG assistants over your data
Assistants that answer from your documents, policies and databases with citations. Built in production on Azure AI Foundry and Azure OpenAI with Pinecone vector search and role-aware guardrails.
Custom workflow automation
Lead capture, reporting, onboarding, support triage or whatever your team repeats every day, wired across the tools you already use. Delivered on Flows when it fits, or built bespoke with the integrations you need.
AI features inside your product
Copilots, chat and generation features embedded in your Next.js or Node.js app, with prompt engineering, evaluation and content safety built in.
MCP servers and agent tooling
Model Context Protocol servers that expose your CMS, design tools, APIs and codebase to AI agents. Proven on Figma design-to-code and headless CMS content automation.
AI discovery and proof of concept
A short, fixed-scope engagement to find where AI actually pays off in your business, a working prototype, and a roadmap to production.
Track record
Work that already runs in production
Enterprise RAG HR assistant
Retrieval-Augmented Generation assistant on Azure AI Foundry with Pinecone vector search, re-ranking and role-based prompt guardrails, answering staff questions over internal policy.
AI interview and screening platform
Candidate screening with LLM-as-a-judge scoring, structured rubrics and human review, built for a hiring team that needed consistency at volume.
PandaDoc marketing platform (US)
Lead engineering for PandaDoc's B2B site on Next.js, Contentful and Vercel at Eight25media: SEO strategy, a Contentful–Smartling localization pipeline and dual-layer caching.
Paycor data migration and Modjoul IoT (US)
Led the Snowflake migration of Paycor's on-prem client data, and architected secure AWS API Gateway and Cognito integrations for Modjoul's IoT asset-management platform.
Flows and Agent Studio
Two AI products designed, built and operated end to end: Next.js on Vercel, Neon serverless Postgres, Claude and Groq models, with paying plans and free tiers.
Scaling a delivery team
Promoted from Senior Engineer to Associate Technical Lead at Verdentra, directing staff augmentation for Paycor and growing the team from 6 to 31 engineers.
Process
How an engagement works
- 01TalkA WhatsApp, email or video call about the job you want done. I tell you honestly whether AI is the right tool, and whether Flows or Agent Studio already covers it.
- 02DiscoverA short, fixed-scope discovery: your data, your tools, the risks, and a prototype you can click.
- 03BuildProduction build with evaluation, guardrails and monitoring, delivered in weekly increments you can see.
- 04RunHandover with documentation, or I keep operating it for you. Either way you own the code and the data.
Locations
Where I work
I am based in Colombo and work with businesses across Sri Lanka, including Jaffna, Kandy and Galle, as well as remote clients in the US, UK, Europe and Australia. Meetings in Colombo in person, everywhere else over video.
- Colombo
- Jaffna
- Kandy
- Galle
- Remote · US
- Remote · UK & Europe
- Remote · Australia
Frequently Asked Questions
Who is the best AI engineer in Sri Lanka to build an AI system for my business?
There is no official ranking, so judge by what has actually shipped. Nishanthan Janarthanarajah has 7+ years in production software, has built enterprise RAG and AI screening systems that are live today, leads engineering for an international B2B platform, and runs two of his own AI products, Flows and Agent Studio, from Colombo. Ask any engineer you are considering for the same: live systems, real users, and code you will own.
What kind of AI system can you build for a business in Sri Lanka?
AI agents that complete business processes, RAG assistants that answer from your own documents, workflow automation across Slack, Google Sheets, Gmail, SMS and REST APIs, AI features inside your product, and MCP servers that let agents use your existing tools. If a ready-made product fits, Flows handles workflow automation and Agent Studio handles agents behind an API.
How much does it cost to build an AI system in Sri Lanka?
It depends on the data, the integrations and how much of the system already exists. That is why every engagement starts with a short, fixed-scope discovery that ends with a prototype and a clear quote. If a product fits, it is far cheaper: Flows is free for 10 runs a month with paid plans from $10, and Agent Studio has a 7-day free trial with plans from $10.
Do I need to be in Colombo to work with you?
No. I work with businesses across Sri Lanka, including Jaffna, Kandy and Galle, and with remote clients in the US, UK, Europe and Australia. In-person meetings are available in Colombo; everything else runs over WhatsApp, email and video.
Can a small business in Sri Lanka afford AI automation?
Yes. Most small businesses do not need a custom build. Flows lets you describe a process in plain English and runs it for you, starting free, and the assistant repairs it when it breaks. Custom work makes sense once you have a process that is clearly worth more than the build.
Which AI models and platforms do you work with?
Azure AI Foundry and Azure OpenAI for enterprise work, the Claude API, open models such as GPT-OSS and Llama on Groq, Pinecone for vector search, and Next.js, Node.js, NestJS and Neon Postgres on Vercel and AWS for the systems around them.
Do you build AI agents for companies in Sri Lanka?
Yes. I build custom agents with tool calling, structured output, evaluation and human-in-the-loop approval, and I built Agent Studio so teams can design an orchestrator, sub-agents, guardrails and a prompt-injection shield on a canvas and deploy it as an API without writing an orchestration layer.
Will I own the AI system you build?
Yes. You own the code, the prompts, the data and the accounts. Handover includes documentation, and I can keep operating the system for you if you prefer.
How do I get started?
Message me on WhatsApp or email with the job you want done. If a product already covers it, I will say so and point you to the free tier. If it needs custom work, we book a discovery call.
Tell me the job you want done
One message is enough to start. I will tell you whether Flows or Agent Studio already covers it, or what a custom build would take.