AI Engineer / Full Stack Developer

Engineering data-native AI systems.

Hi! I'm Shreyash, I do full-stack for AI-native products.

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Experience / Founding

PersistOS

Full-Stack Developer (AI Memory + Intelligence Platform)

San Francisco, CA

Mar 2025 — Jan 2026

Core

Worked on a production-style “AI that remembers” platform: a backend that turns user interactions into persistent intelligence artifacts, plus a Next.js frontend with streaming-first UX. The system emphasizes modular APIs, real-time chat streaming, vector-backed state, and background jobs for long-running intelligence processing.

React.jsNext.jsFastAPIPython (async backend)SSE StreamingTipTap / Markdown Editor+6

Top signals only

Quick Stats

Real-time SSE

✓

Vector-backed State

✓

Background Jobs

✓

Backend & Infra

+Developed the AI memory backend using FastAPI with robust lifecycle management (async initialization, graceful cleanup hooks, shutdown resource handling).
+Created a modular API surface with thin routers delegating to deeper services, including real-time chat via an SSE streaming endpoint (`/api/v1/chat/stream`).

AI & Data

+Implemented embedding generation as a validated API (content-type checks + length validation) feeding into storage for vector similarity search.
+Delivered a sizable automated test suite (API, concurrency, failure recovery, CORS behavior, and orchestration/integration coverage).

Frontend & DX

+Built the Next.js App Router frontend with a modern component stack, including a rich editor experience using TipTap + markdown support for structured content workflows.

DivertissementAI

Chief Technology Officer

San Francisco, CA

Mar 2025 — Aug 2025

Core

Architected and shipped a multi-surface AI product across web, iOS, and Chrome extension clients with shared authentication, data, and analytics systems.

FastAPIPythonNext.jsTypeScriptSwiftUIFirebase Auth+6

Top signals only

Quick Stats

Auth / Lifecycle

✓

Backend & Infra

+Implemented production OAuth 2.0 integrations for Instagram, YouTube, and Gmail APIs with secure token lifecycle handling.
+Designed a BFF proxy architecture to keep secrets server-side and standardize third-party integration flows.

Frontend & DX

+Built a modular AI-agent backend architecture with FastAPI, Agno, and Gemini via Vertex AI for contextual generation and analysis workflows.
+Shipped Smart Notes and AI-native content workflows with metadata generation, rich editor tooling, and cross-content linking.

Consilient Labs

Backend Developer (Secure REST API Gateway & AuthZ)

San Francisco, CA

Aug 2024 — Dec 2024

Core

Built a permissioned REST API access layer that keeps authentication and authorization consistent across services. The system verifies OAuth2 tokens, validates JWTs against Cognito JWKS, and enforces fine-grained, role-based access rules at the endpoint/method level through a configurable gatekeeper approach.

Node.jsExpress.jsOAuth 2.0AWS Cognito (JWKS)JWT ValidationRBAC / YAML-JSON Policies+4

Top signals only

Quick Stats

Auth / Lifecycle

✓

Backend & Infra

+Secure login using OAuth 2.0 (AWS Cognito) so users authenticate safely without exposing raw credentials to the application.
+Token validation with JWKS-backed JWT verification, including signature + expiration checks (with JWKS fetching/caching to keep validation fast and reliable).

Frontend & DX

+Built CI/CD automation to run tests + build + deployment workflows, reducing deployment errors and improving operational stability.

Mango Software Solutions

Junior Web Developer (Intern)

Kathmandu, Nepal

Jun 2023 — Aug 2023

Core

Built responsive client websites and custom UI themes during a web development internship.

HTMLCSSJavaScriptResponsive DesignUI Theming

Top signals only

Backend & Infra

+Launched two responsive websites using HTML, CSS, and JavaScript.
+Improved cross-device UX and mobile responsiveness, contributing to an estimated 40% traffic increase.

Frontend & DX

+Developed custom themes and UI designs to improve client satisfaction and usability.

World Food Programme

Volunteer Assistant

Kathmandu, Nepal (Remote)

Oct 2020 — Nov 2020

Core

Supported operations and IT workflows during the COVID-19 period through inventory and remote support tasks.

IT SupportData OperationsRemote CollaborationOperations Support

Top signals only

Backend & Infra

+Streamlined stock database management using internal WFP systems for timely and accurate inventory records.
+Provided IT support for remote staff, resolving network and system issues to improve team productivity.

Projects Intelligence

Hackathons / Wins & Awards

WeaveHacks 2 • Multi-agent Learning Loop

Agent Playground

Building multi-agent learning systems is only half the job: teams need deterministic safety scoring and deep observability to understand how strategies evolve, converge, and fail over time.

Demonstrated measurable learning improvements: hierarchical learning success rate ~72% → ~88% (+16%), and quality score ~0.74 → ~0.89 (+20%). The system includes a judge-friendly end-to-end demo flow (~5–8 minutes) plus automated tests for hierarchical behavior and security scoring integration.

Devpost • Content Creator Connector

AI-Influencer-Marketing-Agent

Influencer partnership workflows are fragmented: discovering creators, interpreting profiles, and generating personalized outreach requires multiple steps across research, matching, multimodal analysis, and traceable reporting.

Delivered a structured and typed pipeline (Pydantic models + structured workflow outputs) that improves debuggability and iteration speed. Included reusable toolkits for multimodal analysis (Selenium stealth screenshot capture) and streaming/traceability patterns so the workflow stays inspectable across runs.

AWS Hackathon • Natural Selection for AI Tool Generation

Darwin

AI-generated tools are risky by default: you need a system that can safely explore candidates, scan for vulnerabilities, and consistently pick the best outputs instead of trusting a single generation run.

Built a security-first evolution loop with explicit fitness weights (Security 40%, Success 30%, Speed 20%, Quality 10%) and robust Bedrock enablement/fallback so the system can run reliably in different environments. Included generation tracking and leaderboard/specialization insights to show improvement across runs.

Open Contributions

Core contributions to open-source systems focused on optimization, protocols, and AI infrastructure.

Open Contribution • Self-evolving Optimization Framework

The Convergence

Teams tuning agent/API systems need runtime adaptation and repeatable optimization workflows, not one-off static prompts.

Built core SDK and runtime loops for an open-source Python framework combining evolutionary optimization and multi-armed bandit runtime selection. Added production-oriented selection/update flows and extensible adapters/storage support.

PythonThompson Sampling

Open Contribution • Symbolic A2A Protocol

Vector Native

Natural language AI-to-AI exchange can be ambiguous and token-heavy, making systems less predictable and more expensive.

Implemented a protocol-first parser/tokenizer system for symbolic A2A communication with strict, hybrid, and fallback parsing strategies plus token reduction measurement tooling.

PythonParser Design

Side Projects

Independent builds across systems, web, architecture, and automation.

Amazing Stay

ReactTypeScriptVite+2

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Built a responsive React + TypeScript platform with listing discovery, detail pages, booking flows, and animated UI interactions.

CreatoVerse

ReactViteSupabase+2

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Built a React + Vite application with Supabase-backed CRUD, route-driven UX, and reusable card-based profile components.

Go Web Crawler + Search Engine

GoSQLiteConcurrency+2

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Engineered a Go crawler with robots.txt compliance, sitemap-aware queueing, concurrent indexing pipelines, and SQLite-backed retrieval.

RISC-V Emulator

CRISC-VSystems Programming+1

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Built a C-based RISC-V emulator supporting core instruction formats, decode/execute paths, and optional cache simulation modes.

Pipelined Processor

Digital LogicPythonMakefile+2

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Developed modular pipeline artifacts and Python/Makefile tooling to convert assembly/disassembly into ROM-friendly formats.

Pong Game

C++Win32 APIGame Loop+1

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Implemented a complete Win32 C++ Pong game with custom pixel-buffer rendering, input handling, physics, and AI opponent logic.

Hay Day Automation Bot

PythonOpenCVPyAutoGUI+2

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Built a Python automation bot using PyAutoGUI and OpenCV template matching for harvesting, planting, market actions, and looped workflows.

Piano Tiles Automation Bots

PythonScreen CaptureInput Automation+1

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Implemented Python bots with lane-based color detection and dynamic tile scanning strategies, paired with rapid simulated input actions.

Systems / Skills

Core capabilities mapped to shipped systems and portfolio signals.

AI/Agent Systems / Node Cluster

Multi-Agent Orchestration

Core

Agno • agent roles • workflow orchestration

Signals:Agent PlaygroundAI-Influencer-Marketing-Agent

Bandits + Evolutionary Optimization

Core

Thompson sampling • multi-armed bandits • evolution

Signals:Agent PlaygroundThe Convergence+1

LLM Evaluation + Safety Scoring

Advanced

Weave • Semgrep scoring • quality metrics

Signals:Agent PlaygroundDarwin

Backend & API Security / Node Cluster

OAuth2 + JWT + RBAC

Core

AWS Cognito • JWKS • role hierarchy

Signals:Portfolio link+2

FastAPI Service Architecture

Core

modular routers • service layers • async lifecycle

Signals:Agent PlaygroundDarwin+1

BFF / Secure API Proxying

Advanced

server-side secrets • proxy patterns • integration gateways

Signals:Portfolio link+3

Data/State Systems / Node Cluster

Vector + Embedding Pipelines

Core

vector search • embeddings • similarity retrieval

Signals:Vector Native+1

Convex Schema & Realtime State

Advanced

schema design • realtime sync • state modeling

Signals:Portfolio link+2

SQL Indexing & Retrieval Systems

Working

SQLite • TF-IDF • indexing pipelines

Signals:Go Web Crawler + Search EngineThe Convergence

Infrastructure & DevOps / Node Cluster

Docker + CI/CD Delivery

Advanced

containerization • deploy pipelines • test automation

Signals:Agent PlaygroundDarwin+2

Cloud/API Integrations

Advanced

AWS • Google APIs • Instagram API

Signals:Darwin+2

Testing & Reliability Engineering

Core

unit tests • integration tests • e2e

Signals:Agent Playground+2

Systems Engineering / Node Cluster

CPU Emulation & Instruction Decoding

Advanced

RISC-V • instruction formats • decode/execute

Signals:RISC-V EmulatorPipelined Processor

Concurrency & Runtime Control

Working

goroutines • pipeline stages • real-time loops

Signals:Go Web Crawler + Search EnginePong Game+1

Protocol + Parser Design

Advanced

formal syntax • strict/hybrid parsing • token accounting

Signals:Vector NativeThe Convergence

Product & Frontend / Node Cluster

Next.js / React Product Engineering

Core

App Router • component architecture • UX systems

Signals:Agent Playground+2

Rich Editor + Content UX

Advanced

TipTap • markdown • command palette

Signals:Portfolio link+2

Cross-Platform Client Delivery

Working

SwiftUI • Chrome extension • responsive web

Signals:Amazing StayCreatoVerse+1

Contact / Connect

Let's build reliable AI products and systems together.

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