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Full-Stack Software Engineer — AI & R&D

I design and ship production systems across the stack — from LLM and voice pipelines to the APIs, infrastructure, and interfaces around them. ~5 years turning hard problems into simple, reliable products.

Résumé
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Years experience
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Platforms delivered
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Engineers mentored

About

Harshan Aiyappa

I'm a full-stack engineer working at the intersection of product and applied AI. Day to day that means React/Next.js on the front, Node.js and Python services behind it, and R&D in speech and language tech — TTS, ASR, and NLP — turned into low-latency, production features.

I care about architectural rigor: systems that are understandable, observable, and hold up under load. Over ~5 years I've delivered 40+ platforms end to end and mentored 250+ engineers and students.

Currently building AI/voice platforms at Lingotran. Master's in Computer Applications (MCA).

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Mentored

What I do

AI & Agents

LangGraph and agentic pipelines, RAG, LLM integration, and voice (TTS/ASR) and NLP built for production.

Distributed Systems

Event-driven services, Kafka, gRPC, sagas, and high-throughput data flows that stay consistent under load.

Full-Stack Product

React, Next.js, TypeScript with Node/FastAPI behind — from design system to deployed product.

Infra & Cloud

Docker, AWS, Kubernetes, CI/CD, and the observability that keeps it all honest in production.

Stack

Tools I reach for.

Frontend

ReactNext.jsTypeScriptTailwindFramer MotionRadix / shadcn

Backend

Node.jsExpressPythonFastAPIFlaskNestJSJava

AI / ML

LangChainOpenAI APIWhisperSpaCyTensorFlowPyTorch

Data

PostgreSQLMongoDBMySQLRedisKafkaSQL Server

DevOps / Cloud

DockerAWSKubernetesGitServerlessGo · GraphQL
ReactNext.jsTypeScriptNode.jsPythonFastAPILangChainOpenAIWhisperKafkaDockerAWSKubernetesPostgreSQLRedisGogRPCTensorFlowReactNext.jsTypeScriptNode.jsPythonFastAPILangChainOpenAIWhisperKafkaDockerAWSKubernetesPostgreSQLRedisGogRPCTensorFlow

Selected work

Featured

FeaturedNexus Swarm project thumbnail

AI / Agents

Nexus Swarm

Stateful multi-agent system on LangGraph with human-in-the-loop review for autonomous research synthesis.

LangGraphPythonFastAPINext.js
GitHub
FeaturedVoxAgent Neural project thumbnail

Real-time Transcription

VoxAgent Neural

Sub-second real-time transcription engine with an agentic control plane over WebSockets.

FastAPIFaster-WhisperLiveKitReact
GitHub
FeaturedLiveNexus AI project thumbnail

Hybrid Audio AI

LiveNexus AI

Real-time hybrid audio platform pairing CPU inference nodes with cloud transport for global scale.

Next.jsLiveKitFaster-WhisperDocker
GitHub
FeaturedEdgeMatrix project thumbnail

Distributed Inference

EdgeMatrix

Distributed inference engine sharding large models across edge nodes with WASM kernels.

BunWebAssemblyTypeScriptC++
GitHub
FeaturedChronicleLedger project thumbnail

Event Sourcing

ChronicleLedger

High-concurrency event-sourcing ledger holding strong consistency via Raft consensus.

Node.jsCockroachDBNATSDocker
GitHub
FeaturedVelocityEdge project thumbnail

High Throughput

VelocityEdge

Telemetry dashboard processing 100k+ events/sec at sub-10ms latency over binary streams.

Next.jsWebSocketsRedisGo
GitHub
FeaturedDataQuarantine project thumbnail

Data Pipeline

DataQuarantine

Fault-tolerant pipeline isolating malformed records with circuit breakers and dead-letter queues.

TypeScriptKafkaPostgreSQLDocker
GitHub
FeaturedRouteMaster project thumbnail

AI Cost Routing

RouteMaster

Cost-optimized LLM router that scores each prompt's complexity and routes to the cheapest capable model, with measured savings.

TypeScriptNode.jsLLMDocker
GitHub
FeaturedDriftWatch Pro project thumbnail

MLOps · Drift

DriftWatch Pro

Statistical data-drift detection with a two-sample KS-test and PSI, per-feature baselines, and severity-graded alerts.

PythonNumPyMLOpsDocker
GitHub
FeaturedEventReplay project thumbnail

Event Sourcing

EventReplay

Event-sourced state reconstruction with deterministic replay, time-travel to any sequence, and snapshots.

TypeScriptNode.jsEvent SourcingDocker
GitHub
FeaturedChronoSync project thumbnail

Distributed Time

ChronoSync

Vector clocks in Rust for distributed causal ordering — detects happens-before and truly concurrent events.

RustVector ClocksDistributed Systems
GitHub

30 projects

FeaturedNexus Swarm project thumbnail

AI / Agents

Nexus Swarm

Stateful multi-agent system on LangGraph with human-in-the-loop review for autonomous research synthesis.

LangGraphPythonFastAPINext.js
GitHub
FeaturedVoxAgent Neural project thumbnail

Real-time Transcription

VoxAgent Neural

Sub-second real-time transcription engine with an agentic control plane over WebSockets.

FastAPIFaster-WhisperLiveKitReact
GitHub
FeaturedLiveNexus AI project thumbnail

Hybrid Audio AI

LiveNexus AI

Real-time hybrid audio platform pairing CPU inference nodes with cloud transport for global scale.

Next.jsLiveKitFaster-WhisperDocker
GitHub
FeaturedEdgeMatrix project thumbnail

Distributed Inference

EdgeMatrix

Distributed inference engine sharding large models across edge nodes with WASM kernels.

BunWebAssemblyTypeScriptC++
GitHub
FeaturedChronicleLedger project thumbnail

Event Sourcing

ChronicleLedger

High-concurrency event-sourcing ledger holding strong consistency via Raft consensus.

Node.jsCockroachDBNATSDocker
GitHub
FeaturedVelocityEdge project thumbnail

High Throughput

VelocityEdge

Telemetry dashboard processing 100k+ events/sec at sub-10ms latency over binary streams.

Next.jsWebSocketsRedisGo
GitHub
FeaturedDataQuarantine project thumbnail

Data Pipeline

DataQuarantine

Fault-tolerant pipeline isolating malformed records with circuit breakers and dead-letter queues.

TypeScriptKafkaPostgreSQLDocker
GitHub
FeaturedRouteMaster project thumbnail

AI Cost Routing

RouteMaster

Cost-optimized LLM router that scores each prompt's complexity and routes to the cheapest capable model, with measured savings.

TypeScriptNode.jsLLMDocker
GitHub
FeaturedDriftWatch Pro project thumbnail

MLOps · Drift

DriftWatch Pro

Statistical data-drift detection with a two-sample KS-test and PSI, per-feature baselines, and severity-graded alerts.

PythonNumPyMLOpsDocker
GitHub
FeaturedEventReplay project thumbnail

Event Sourcing

EventReplay

Event-sourced state reconstruction with deterministic replay, time-travel to any sequence, and snapshots.

TypeScriptNode.jsEvent SourcingDocker
GitHub
FeaturedChronoSync project thumbnail

Distributed Time

ChronoSync

Vector clocks in Rust for distributed causal ordering — detects happens-before and truly concurrent events.

RustVector ClocksDistributed Systems
GitHub
DocMind AI project thumbnail

RAG

DocMind AI

Retrieval-augmented generation with hybrid semantic search and neural re-ranking.

PythonLangChainOpenAIPinecone
GitHub
Agent Core project thumbnail

Agent Framework

Agent Core

Autonomous agent framework implementing ReAct with tool use and persistent memory.

PythonOllamaChroma
GitHub
InferenceHub project thumbnail

ML Ops

InferenceHub

Model-serving grid managing versioned deployments and A/B tests behind one inference API.

FastAPIDockerKubernetesMLflow
GitHub
VoiceSync AI project thumbnail

Private / On-device

VoiceSync AI

Offline-first transcription running Whisper locally in the client for full data privacy.

ElectronWhisper.cppReact
GitHub
SpeakFlow project thumbnail

Acoustic Analysis

SpeakFlow

Real-time acoustic analysis scoring phonetic accuracy from live audio waveforms.

ReactWeb Audio APIVite
GitHub
OrderSaga project thumbnail

Saga Pattern

OrderSaga

Reference distributed saga with compensating transactions across microservices.

Node.jsRabbitMQPostgreSQLNext.js
GitHub
RingRoute project thumbnail

Request Routing

RingRoute

High-concurrency router using consistent-hashing rings for stateful workloads.

Go (Fiber)Consistent HashinggRPC
GitHub
LogStream AI project thumbnail

Observability

LogStream AI

High-volume log ingestion with automated anomaly detection and batch buffering for spikes.

GoElasticsearchKibanaDocker
GitHub
LimitGuard project thumbnail

Rate Limiting

LimitGuard

Distributed rate limiter for DDoS mitigation using token- and leaky-bucket algorithms.

Redis/LuaNode.jsNginx
GitHub
TokenForge project thumbnail

Identity / Auth

TokenForge

OIDC-compliant identity provider with MFA hooks and automated key rotation.

NestJSOIDC/OAuth2RedisDocker
GitHub
Nexus Shield project thumbnail

AI Security · PII

Nexus Shield

AI security gateway that masks PII in real time before requests reach downstream models.

NestJSPresidioNode.jsDocker
GitHub
Lakehouse Pro project thumbnail

Big Data

Lakehouse Pro

Real-time IoT lakehouse on the medallion architecture with Kafka and ClickHouse.

Java (Spring)ClickHouseKafkaProtobuf
GitHub
SpecLens project thumbnail

DevTools

SpecLens

API-spec auditor that lints OpenAPI schemas for security and style violations.

TypeScriptASTReactOpenAPI
GitHub

Logistics Platform

Tabedaar Service

All-in-one service platform with admin, merchant, rider, and real-time order modules.

ReactJavaMSSQL
Proprietary

Media App

Canada Bizzsp

Short-video business app ecosystem with a full content-management backend.

ReactReact NativeJavaMSSQL
Proprietary

Enterprise Platform

Zeus Biotech

Full-stack biotech ops platform — Next.js web admin, React Native mobile, Node.js REST API, and MSSQL — unifying orders, distributors, and internal workflows.

Next.jsReact NativeNode.jsMSSQL
Proprietary

FinTech · Legacy

Chit Fund System

Standalone ledger for chit-fund schemes with an accurate interest-calculation engine.

JSP/ServletsSQL ServerMVC
Proprietary

Research · MCA

Graphical Captcha Auth

Graphical-captcha authentication mechanism for high-integrity login flows.

C#ASP.NETMySQL
Academic

Research · BCA

Early Reviewer Prediction

System predicting early product reviewers to optimize marketing spend.

C#MySQLData Mining
Academic

Experience

The path so far.

Full-Stack Software Engineer — AI & R&D

Jan 2023 — Present

Lingotran Pvt Ltd

Build and ship AI/voice platforms end to end — real-time TTS/ASR/NLP pipelines, agentic RAG, and the APIs and dashboards around them. Design resilient services for high-throughput data and guide junior engineers on architecture.

Software Engineer

Feb 2021 — Aug 2022

Veriteam Software Solutions

Delivered 40+ full-stack products for clients, including the Tabedaar logistics platform and Zeus Biotech — Next.js web, React Native mobile, Node.js API, and MSSQL with layered RBAC. Owned delivery lifecycles and mentored 250+ students and engineers.

MCA — Computer Applications

2017 — 2020

NIE Institute of Technology, Mysore

Master's, 8.2 CGPA. Focus on algorithms, distributed systems, and concurrency.

BCA — Computer Applications

2014 — 2017

University of Mysore

Bachelor's, 71%. Foundations in computational logic, databases, and the software lifecycle.

Peers

He translates complex business requirements into scalable solutions. His greatest strength is mentorship — code reviews were always learning opportunities, and he foresees bottlenecks before they become issues.
AAniruddha BagalSDE @ Examic EdTech · GitHub Campus Expert
A rare combination of technical brilliance and a positive, solution-driven mindset. His depth as a full-stack developer and eagerness to take ownership made him an incredible asset to the team.
SS Kumar DhananjayaAssociate SW Engineer @ Examic EdTech
Exceptional full-stack developer who proved invaluable to our success. He architects scalable solutions and moves seamlessly between frontend and backend. A true team player with excellent communication.
KKaushik N DDatabase Developer & ETL Engineer
One of the most dedicated and versatile full-stack developers I've met. He turns complex ideas into real-world applications, and leads with empathy while mentoring generously.
DDeepak Somayya MathandaDigital Marketing & SEO Specialist
The analytics dashboard he built reflected the kind of developer he is: thoughtful, user-centric, and impactful. He balances technical depth with clarity and simplicity.
RRaghav SMarket Research Analyst
A talented and reliable software developer with strong problem-solving skills and a collaborative approach. Highly recommended.
YYamini RajkumarHR Specialist · Recruitment & L&D

Open to senior full-stack / AI engineering roles and select collaborations. The fastest way to reach me is email.

Send a message

Harshan Aiyappa · Full-Stack Software Engineer · © 2026
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