The Economist Group
Full Stack AI Engineer · AI Lab
AI features · full-stack product engineering · voice/model experiments · evaluation THE ECONOMIST GROUP · AI LAB · FULL STACK AI & SECURITY ENGINEER
Hariom Singh — Full Stack AI & Cyber Security Engineer. Engineering
AI & Security for a more
informed world.
I build AI-powered products, agentic systems and full-stack experiences that turn complex information into useful, human interfaces — from journalism and research to real-time voice and enterprise AI and Security.
5+ years engineering
3× PwC Distinctive Performer
AI · Cloud · Full Stack · Security
ID · VERIFIED ●
NOW BUILDING ATThe Economist GroupAI Lab · Full Stack AI & Security Engineer · Aug 2026
SYSTEM STATUSBUILDING · EVALUATING · SHIPPING
ACTIVE LAYERS
AIINFRASECURITY
THREAT POSTUREZERO TRUST · ARMED
AGENTIC AI✦RAG / CAG✦REAL-TIME VOICE✦
REACT / NEXT.JS✦PYTHON / FASTAPI✦AWS / AZURE✦
SERVERLESS ARCHITECTURE✦AI EVALUATION✦
SIEM / DETECTION✦VULNERABILITY MANAGEMENT✦LLM SECURITY✦
AGENTIC AI✦RAG / CAG✦REAL-TIME VOICE✦
REACT / NEXT.JS✦PYTHON / FASTAPI✦AWS / AZURE✦
SERVERLESS ARCHITECTURE✦AI EVALUATION✦
SIEM / DETECTION✦VULNERABILITY MANAGEMENT✦LLM SECURITY✦
WORK / CONTEXT
Selected professional experience
Companies and project contexts represented below.
The Economist GroupAI Lab · Full Stack AI & Security Engineer · Aug 2026
PwCSenior Associate · AI & Security
NokiaSecurity · Automation
HCLTechEngineering · Security
Eli LillyMedical AI · Voice
Company marks are shown only to identify professional or project context. They do not imply endorsement or ownership.
01
THE ECONOMIST GROUP / AI LAB
Where I am now
CURRENT ROLE
Building AI experiences
for journalism.
At The Economist Group — AI Lab, I work across the stack on AI features and experiments that connect The Economist's journalism and research with new interfaces — including conversational, voice and interactive experiences.
Selected work is described at a high level to respect client and employer confidentiality.
01UnderstandEditorial intent
02DesignAI + interface
03EngineerReliable systems
04EvaluateQuality + usefulness
PwC
Senior Associate
Agentic AI · RAG/CAG · real-time voice · React/Next.js · AWS/Azure · enterprise AI · Cyber SecurityHCLTech
Senior Software Engineer
Nokia security platforms · agentic alerting · ELK/SIEM · automation · vulnerability management02
FROM MODEL TO PRODUCT
Systems I build
HARIOM
AI · SECURITY ENG
AI · SECURITY ENG
AGENTICLangGraph · tools · MCP
KNOWLEDGERAG · CAG · vector search
REAL-TIMEWebSockets · voice · streaming
FRONTENDReact · Next.js · TypeScript
BACKENDPython · FastAPI · APIs
CLOUDAWS · Azure · CI/CD
SERVERLESSevent-driven · managed services
EVALUATIONquality · latency · cost
Intelligent orchestration
Multi-step agents, routing, tool use, structured outputs and grounded retrieval — designed as systems rather than isolated prompts.
agent → retrieve → reason → tool → verify → respond
Real-time AI
Streaming interfaces and voice systems where latency is part of the product. WebSockets, full-duplex interaction and incremental response delivery.
audio → STT → LLM → TTS → stream
Cloud architecture
AWS and Azure experience across deployment, containers, managed services, CI/CD and serverless/event-driven architecture.
event → function → service → data → observe
03
DETECT · HARDEN · DEFEND
Security engineering
soc-console — detection pipeline
LIVE
Illustrative stream · no real customer data
SOC, SIEM & detection
ELK-based SIEM pipelines for Nokia security platforms — log ingestion and normalisation, correlation rules and agentic alerting that cut noise and route real incidents to the right responders.
logs → parse → enrich → correlate → alert → triage
Vulnerability management & AppSec
Scanning, risk-based prioritisation and remediation tracking across platform estates, plus secure-by-default engineering: OWASP Top 10, dependency and code scanning in CI/CD, and hardened APIs.
scan → score → prioritise → patch → verify
Cloud & AI security
Least-privilege IAM, AWS/Azure hardening and secrets hygiene — and for LLM systems: prompt-injection defence, guardrails, grounded outputs and safe, auditable tool use for agents.
input → sanitise → guard → model → validate → log
01 Zero trust
02 Defence in depth
03 Least privilege
04 Secure by design
05 Observe everything
04
THINGS I HAVE SHIPPED
Selected engineering
FEATURED AI EXPERIENCE
Real-time Medical AI Representative
Voice + chat, grounded knowledge, agentic actions, low-latency streaming and safety-aware escalation — built as a full product experience rather than a demo.
01
ELI LILLY · ENTERPRISE AIREAL-TIME / VOICEIsabella · Medical AI Representative
Built real-time voice + chat capabilities for an enterprise medical AI representative for Eli Lilly, combining grounded medical knowledge, agentic workflows, streaming and secure escalation paths.
Eli Lilly · OpenAI Realtime · Python · FastAPI · React · WebSockets · RAG
↗
02
SUPPLY CHAIN AIRAG / ANALYTICS
SAM · Supply Chain Risk AI
Built enterprise AI experiences for supply-chain risk analysis, combining grounded retrieval, conversational UX, real-time streaming and analytics for a enterprise/Planalytics context.
Planalytics · RAG · React/Next.js · Power BI · Cloud
↗
03
P PLANALYTICS / DATA AIANALYTICS
Weather-driven demand intelligence
End-to-end analytics experience translating meteorological and sales data into interactive insights and AI-assisted decision support.
React · Next.js · AI · Power BI · APIs · Cloud
↗
05
SIGNALS OVER TITLES
Recognition
PWC
Distinctive Performer
Recognized three times, including cash-prize recognition, for project delivery and performance.
NOKIA
Certificate of Recognition
Recognition from Nokia leadership for work supporting Nokia GS.
HCLTECH
2Good Award
Top-performer recognition for continuous performance across three years at HCLTech.
06
SERVERLESS · EVENT-DRIVEN · AI-NATIVE
Architecture mindset
EVENTqueue / webhook / stream
COMPUTEserverless / containers / APIs
INTELLIGENCELLM / agent / retrieval
DATAPostgres / vector / object store
OBSERVElogs / traces / evaluation
SECUREIAM / secrets / SIEM
AIPRODUCT
My approach: keep the model layer replaceable, the product layer human,
the data layer grounded, the infrastructure elastic and security built in from the first commit. I work comfortably across
AWS/Azure, APIs, CI/CD, containers and serverless/event-driven patterns.
07
WHAT I LIKE TO BUILD WITH
My toolbox
PythonFastAPIReactNext.js
TypeScriptLangGraphLangChainOpenAI
ClaudeBedrockVertex AIRAGCAG
PostgreSQLMongoDBOpenSearchPgVector
AWSAzureDockerKubernetes
CI/CDWebSocketsRedisELKPower BI
ServerlessEvent-drivenMCPAI Evaluation
SIEMThreat DetectionVulnerability MgmtOWASP
IAMSAST / SCALLM GuardrailsZero Trust
OPEN CHANNEL
Have an interesting