Senior Backend Engineer — NestJS / Node.js — AI/LLM Integration
LinkedIn • Portfolio • ORCID • Email
Open to remote, hybrid, or relocation — US / EU / APAC overlap
Full-time or contract engagements
I build backend systems that scale, AI features that ship, and integrations that connect. With over 7 years of software engineering experience, I specialize in serverless architectures, high-performance databases, and multi-tenant SaaS platforms with strict per-tenant isolation, asynchronous processing, and AI integrations across multiple agents (OpenAI, Gemini, Anthropic) with deterministic rule-based fallbacks.
I translate business outcomes into technical implementations that drive growth.
| Primary | Secondary | Utilities |
|---|---|---|
| TypeScript | Python | JavaScript |
| Node.js | Django / DRF | FastAPI |
| NestJS |
| Relational | NoSQL | Search & Cache |
|---|---|---|
| PostgreSQL | MongoDB / Mongoose | Redis |
| MySQL | MeiliSearch |
| Core Platform | Capabilities | Integration |
|---|---|---|
| OpenAI SDK | Structured Output | RAG Systems |
| Google Gemini | Multi-modal Analysis | Rule-based Fallbacks |
| Anthropic Claude | Document Processing | Vision APIs |
| Async Processing | Cloud Platforms | Containerization | CI/CD |
|---|---|---|---|
| BullMQ | Google Cloud Platform | Docker | GitHub Actions |
| Redis Queues | AWS (Lambda, API Gateway) | ||
| Webhooks | |||
| n8n Automation |
| Payments & Communication | Data & Storage | Authentication | Architecture |
|---|---|---|---|
| Stripe | GCS | JWT / OAuth 2.0 | RBAC |
| Twilio | Microsoft Graph | Tenant Isolation | API Design |
| Postal SMTP | Session Management | Multi-tenant Systems |
Qeloma Suite — Seven production-grade capability demos showcasing enterprise AI integrations. Enterprise work (Talentnix ATS, APAC HRMS, iAgility, AgileiBrains) is in private, IP-protected repos under NDA. Architecture diagrams, live walkthroughs, and references available upon request.
| Project | Capability |
|---|---|
| Qeloma Verdict | Tamper-evident decision engine with cryptographic audit trails for EU AI Act compliance |
| Qeloma OCR | Client-side OCR with per-word confidence scoring (Tesseract.js / Gemini Vision / hybrid) |
| Qeloma Lens Studio | AI-powered document analysis — summarize, extract, compare (Gemini + rule-based fallbacks) |
| Qeloma Voice Studio | Real-time voice analyst grounded in custom document corpus (Gemini Live API) |
| Qeloma Shift | Semantic change-intelligence engine — meaning-level diffing and materiality scoring |
| Qeloma Cover Studio | Browser-based LinkedIn banner designer with optional Gemini-assisted generation |
| Room Booking | Resource-management platform — meeting room scheduling and booking automation |
Google Cloud Certifications
- Generative AI Fundamentals
- Cloud Computing Foundations (w/ IBM)
Developer Certifications
- Certified Django Developer (e-smartdata.org, 2025)
IBM SkillsBuild Program
- AI Fundamentals
- Cloud Computing
- Data Analytics
- Cybersecurity Fundamentals
Most enterprise work is maintained under NDA across private repositories. The public portfolio represents capability demonstrations and open-source contributions.