Sajankumar Vijayan — Fullstack Developer & AI Engineer
Available for freelance/consulting work.
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I'm Sajankumar Vijayan — I help startups and teams ship production-ready web apps and AI-powered products. From architecture to deployment, I own the full stack.
Nearly two decades, turning complex problems into clean, scalable solutions.
Years in Production
Since 2006
Hours Engineered
And still counting
Tech Eras Mastered
Web → Cloud → AI
Still Day 1
Curiosity, not cargo cult
Hey, I'm Sajan 👋
I'm a fullstack developer and AI engineer based in Almere, Netherlands. I specialize in building production-grade web applications, intelligent backends, and AI-powered products that actually ship on time and under budget.
My work sits at the intersection of web engineering and cloud development. Whether it's wiring up a RAG pipeline over a private document corpus, architecting a multi-tenant SaaS backend, or optimizing a React app's Core Web Vitals I'm equally at home.
As a consultant, I work closely with founders, CTOs, and engineering leads to move fast without accruing unnecessary technical debt. I care deeply about code quality, developer experience, and shipping things that last.
📍Almere, Netherlands
✅Available for Projects
🌍Remote-Friendly
Full Tech Stack
TypeScriptPythonReactNext.jsNode.jsNestJSHono.NETC#FastAPIPostgreSQLMongoDBRedisDockerKubernetesAWSAzureOpenAILangChainn8nAWS BedrockPrismaGraphQLTailwind CSSFramer MotionSupabaseVercelGitHub Actions
Proficiency Levels
Python / FastAPI / FastMCP88%
LLM / RAG Systems / Vertex Embeddings80%
PostgreSQL / MongoDB / Redis87%
LangChain / n8n / AWS Bedrock83%
Looking for a technical partner?
I take on select freelance projects and consulting engagements.
Get in TouchFrom concept to production — I handle the technical heavy lifting so you can focus on your product.
My Process
01
Discovery
Understand requirements, constraints, and goals
02
Architecture
Design scalable, maintainable technical solutions
03
Build & Iterate
Ship incrementally with frequent checkpoints
04
Deploy & Support
Launch with confidence, CI/CD, and monitoring
Real challenges, real solutions. Here's how I've helped teams across industries.
Every project is scoped carefully before work begins. Prices are fixed — you'll know exactly what you're getting before we start.
A thorough review of your existing codebase — architecture, security, performance bottlenecks, and technical debt. You'll receive a detailed written report with prioritised recommendations.
- Full architecture review
- Security vulnerability scan
- Performance analysis
- Prioritised fix recommendations
- 30-min walkthrough call
Most Popular
From idea to live product. I'll help you scope, architect, and ship a production-ready MVP — auth, database, API, and a polished frontend. Built to scale, not just to demo.
- Full-stack web application
- Authentication & user management
- Database design & setup
- REST or GraphQL API
- CI/CD pipeline & deployment
- 2 weeks post-launch support
2–3 weeks
AI Feature Integration
Add intelligent features to your existing product — RAG pipelines, LLM-powered workflows, semantic search, or custom AI agents. I handle the full integration end-to-end.
- LLM / RAG pipeline setup
- Vector database integration
- Custom prompt engineering
- API integration & testing
- Documentation & handover
Dedicated engineering bandwidth every month. Ideal for startups that need a reliable senior developer without the overhead of a full-time hire.
- ~40 hrs/month dedicated time
- Feature development & bug fixes
- Code reviews & architecture
- Weekly async check-ins
- Priority response (< 4 hrs)
Need something custom? Let's talk scope and budget — I work with startups at every stage.
Have a project in mind? I'd love to hear about it. Drop me a message and I'll get back to you within 24 hours.
Location
Almere, Netherlands
Response Time
Within 24 hours