Satish Rajnale

Work & Experience

A collection of independent products I've built, alongside selected professional engineering experience.

Independent / Selected Projects

Products, intelligent systems, and technical experiments built independently.

ProfMe

ProfMe

AI-Powered Longitudinal Professional Memory & Context Retrieval

A professional intelligence product designed to help high-context professionals recover critical commitments, decisions, and relationship nuance before and after conversations. Built with FastAPI, Temporal durable orchestration, hybrid lexical/vector search, and a staged extraction pipeline that eliminates hallucination contamination.

FastAPIPostgreSQLpgvectorSQLiteTemporal
PrimeLife OS

PrimeLife OS

Local-First Personal Intelligence · SQLite Core, Durable Sync & Server AI Gateway

A personal productivity and intelligence system exploring how journaling, daily habits, tasks, and reflections converge with AI assistance—without forcing users into cloud chatbot silos. Built with a local-first SQLite architecture in Tauri/React, resilient outbox sync queues, and an authenticated FastAPI AI execution gateway.

TauriReactTypeScriptSQLiteSupabase
Sovereign Intelligence

Sovereign Intelligence

Architectural Thesis & R&D · User-Owned Intelligence, Trust Boundaries & Provenance

An architectural research framework exploring trustworthy AI systems built around user data sovereignty, multi-tiered trust boundaries, verifiable evidence lineage, and reversible human-in-the-loop proposals.

System ArchitectureData SovereigntyTrust BoundariesMulti-Model RoutingProvenance Graphs
TwoLines

TwoLines

Intimate Shared Space for Couples · Real-Time Canvas, Rituals & Offline Sync

A consumer mobile application designed for two partners to share low-friction emotional rituals, real-time collaborative drawing, and private media. Built with React Native (New Architecture), Expo Router, Supabase Realtime, and RevenueCat subscriptions, with resilient offline stroke queuing and non-recursive RLS security.

React NativeExpoSupabasePostgreSQLRevenueCat

MyStyles

Consumer / Personalization

A consumer application demonstrating product engineering, recommendation logic, and UX-driven development.

FrontendBackendPersonalizationConsumer UX

Notion RAG / Second Brain

RAG / Knowledge Systems

An early technical exploration of RAG, vector search, and LLM reasoning applied to a Notion second brain.

RAGVector SearchEmbeddingsContextual Retrieval

Breakpoint

Product / Engineering

A technical project focusing on engineering depth, architecture, and solving hard constraints.

ArchitectureSystem DesignProblem Solving

Production AI Infrastructure

LLM Infrastructure

A deep dive into the backend systems and gateways required to run probabilistic models in strict production environments.

AI GatewayLiteLLMObservabilityFallback RoutingSystem Architecture

Workflow Orchestration

Temporal / Distributed Systems

A compact engineering case study on utilizing Temporal and event-driven architecture to coordinate complex, long-running processes.

TemporalDistributed SystemsEvent-drivenIdempotency

Professional Experience

Selected engineering work built professionally for companies and clients.

Boomerang AI

AI / SaaS / Data Systems

Selected professional experience in distributed pipelines, data enrichment, and relationship intelligence systems.

B2B SaaSBackend SystemsEntity ResolutionAPI Performance
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TailorBird

SaaS / Product Engineering

Backend and product engineering for SaaS platforms. End-to-end ownership of APIs, database design, and product integrations.

SaaS EngineeringBackend SystemsAPIsProduct Development
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Servosys

Enterprise Software

Enterprise software engineering foundation focusing on reliable backend systems, business workflows, and production deployments.

Enterprise SoftwareBackend SystemsBusiness WorkflowsReliability
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Freelance Mobile Engineering

Mobile / Independent Engineering

Independent mobile product delivery using React Native. Handled product requirements, integrations, and App Store releases.

React NativeMobile ArchitectureAPI IntegrationState Management
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