Open to opportunities

Randy Ramnansingh

@randyramnansingh1

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Senior software engineer and AI/LLM practitioner who builds scalable full-stack systems and product-led teams.

Canada

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What I'm looking for

I seek senior technical roles that blend hands-on engineering with product leadership, opportunities to integrate AI/LLM into production systems, strong cross-functional collaboration, and environments that support scaling architecture and teams.

I am a versatile, hands-on engineering leader with 10+ years building full-stack systems, backend platforms, and AI-powered applications across startups and large enterprises. I specialize in taking products 0→1, scaling architecture and teams, and integrating AI/LLM capabilities into real-world systems.

My recent work includes architecting LLM-powered pipelines (GPT-4o, OpenAI, Hugging Face) for document and data understanding, building hybrid semantic and keyword search platforms with Pinecone and Meilisearch, and delivering backend-first, API-centric services using Go, TypeScript, Node.js, and Python.

I partner closely with product managers and cross-functional teams to ship user-facing features, mentor engineers, and deploy secure, CI/CD-driven systems on cloud platforms (AWS, GCP). I am open to Senior/Principal Software Engineer, Founding Engineer, AI/ML Engineer, or Fractional CTO roles where I can combine deep technical execution with product-minded leadership.

Experience

Work history, roles, and key accomplishments

Current

AI Engineer / Full Stack Developer

Current

Langan Engineering

Jun 2025 - Present (1 year)

Led development of ESA Copilot, an internal LLM-powered assistant that accelerates Phase I Environmental Site Assessments by extracting site history, contaminants, and geographic references from scanned documents and datasets. Architected an LLM pipeline with GPT-4o and built modular Node.js/TypeScript backend services and React interfaces to automate document processing and reporting.

GPT 4o Node TypeScript React PDF Parsing AWS RESTful APIs

AI Senior Software Engineer

Global Edtech Company

Oct 2024 - Jun 2025 (8 months)

Architected and implemented scalable backend services and Libra Engine, a hybrid semantic/keyword search platform using embeddings (OpenAI, Hugging Face), Pinecone, and Meilisearch, enabling context-aware search and summarization across academic content. Integrated LangChain and LangGraph for chained retrieval and dynamic reasoning.

Golang TypeScript Lang Chain LangGraph Pinecone Meilisearch Embeddings API Design

Senior Software Engineer

Instacart

Oct 2023 - Oct 2024 (1 year)

Designed and deployed backend services for Instacart's 3rd Party Integrations platform, enabling retailer loyalty and rewards integrations and automated notifications, improving personalization and operational efficiency. Built scalable APIs and webhooks to support high-traffic retail workflows.

Backend Services API Design Webhooks Microservices Scalability Integration Notifications

Backend Software Engineer

Wish

Sep 2022 - Jun 2023 (9 months)

Developed an investing lead sourcing platform with a Python monolithic backend and React frontend; built and optimized BigQuery/DBT data pipelines on GCP to analyze investment data and surface actionable insights for fund investors. Ensured platform reliability and performance in cloud environments.

Python React BigQuery DBT GCP Data Pipelines Backend Development Analytics

Lead Software Engineer

Deloitte Risk Advisory

Feb 2022 - Dec 2022 (10 months)

Developed scalable TypeScript/Node.js/NestJS solutions and CI/CD pipelines, leveraging Docker and Kubernetes for orchestration; led code reviews and mentored engineers while delivering full-stack applications using Angular and robust database designs.

TypeScript Node NestJS Docker Kubernetes Angular CI CD

Senior Lead Developer

Shopify

Jun 2021 - Feb 2022 (8 months)

Architected backend features for experiment-driven pricing models using Ruby on Rails, GraphQL, and React; led a team of 4 to refactor monolithic components, improving performance and maintainability for merchant-facing features used by millions of businesses.

Ruby on Rails GraphQL React GCP GKE Backend Team Leadership CI CD

Senior Lead Technical Consultant

Global Business Services

Sep 2015 - Jun 2021 (5 years 9 months)

Led design and delivery of enterprise Java solutions and integrations for IBM products, managing teams of 6–10 engineers and implementing service-oriented architectures, APIs, and multi-cloud deployments for clients in regulated industries.

Java Microservices Soap Rest Docker AWS Lambda System Integration Team Leadership