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valyndsilva/README.md

Valyn Maria D'Silva

Senior Product Engineer · London 🇬🇧

Building SaaS products, AI-powered experiences, and platform systems.

🌐 Portfolio💼 LinkedIn📧 Email


👋 About Me

I'm a Senior Product Engineer with 10+ years building SaaS products and customer-facing experiences.

Most recently at Trumpet, I owned the CMS, Widget Library, and Rich Text Editor product areas, helping deliver a platform overhaul that reduced page creation time by 35% and support tickets by 25%.

I'm particularly interested in product engineering, AI-powered workflows, evaluation systems, and building software that solves real customer problems.


🏆 Selected Wins

  • 🚀 Reduced page creation time by 35% through a major CMS platform overhaul
  • ⚡ Led migration across 50,000+ customer pods with zero data loss or regressions
  • 🤖 Shipped AI-powered product features that increased engagement by 15%
  • 🧩 Architected 18+ custom editor widgets and integrated 20+ plugins
  • 📈 Increased frontend test coverage from 15% → 55%

🌟 Featured Projects

🧠 Lumen — AI Research Agent

AI-powered research platform built with FastAPI, LangGraph, PostgreSQL, and pgvector.

Highlights

  • Reflection-based agent workflows for iterative research and self-correction
  • Multi-provider architecture supporting Anthropic, OpenAI, and Google models
  • Embedding-powered retrieval using pgvector
  • Model-split strategy reducing LLM costs by 75%
  • Evaluation pipelines combining LLM-as-judge scoring and deterministic validation
  • Production-focused reliability through caching, rate limiting, SSE streaming, and regression tracking

💼 TalentLens — AI-Powered Job Marketplace

Full-stack SaaS platform built with React, FastAPI, PostgreSQL, and OpenAI APIs.

Highlights

  • Multi-tenant architecture with subscription billing and RBAC
  • AI-powered CV analysis, interview preparation, job recommendations, and skills-gap assessment
  • Authentication, profile management, and role-based access control
  • End-to-end SaaS workflows spanning onboarding, subscriptions, and candidate journeys

🔭 Exploring

  • System Design
  • AI Evaluation & Reliability
  • MCP (Model Context Protocol)
  • Agentic Workflows
  • Product Engineering

Product Engineer focused on building reliable, user-centred products.

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