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I'm Oliver Brown, a Senior Full-Stack Engineer with 8+ years of experience designing and building scalable, cloud-native applications using React, Node.js, and Python. I specialize in microservice architectures, distributed backend systems, and AI-enhanced product features including LLM integrations, RAG pipelines, and vector-based semantic retrieval. I've led architectural decisions, optimized performance, and deployed high-availability systems across AWS, GCP, and Azure. I'm comfortable owning end-to-end delivery from concept to production, collaborating with cross-functional teams, and mentoring junior engineers.…I'm Oliver Brown, a Senior Full-Stack Engineer with 8+ years of experience designing and building scalable, cloud-native applications using React, Node.js, and Python. I specialize in microservice architectures, distributed backend systems, and AI-enhanced product features including LLM integrations, RAG pipelines, and vector-based semantic retrieval. I've led architectural decisions, optimized performance, and deployed high-availability systems across AWS, GCP, and Azure. I'm comfortable owning end-to-end delivery from concept to production, collaborating with cross-functional teams, and mentoring junior engineers.

Oliver Brown

Full Stack Developer, Back-End Developer, Web Developer, +3

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I'm Oliver Brown, a Senior Full-Stack Engineer with 8+ years of experience designing and building scalable, cloud-native applications using React, Node.js, and Python. I specialize in microservice architectures, distributed backend systems, and AI-enhanced product features including LLM integrations, RAG pipelines, and vector-based semantic retrieval. I've led architectural decisions, optimized performance, and deployed high-availability systems across AWS, GCP, and Azure. I'm comfortable owning end-to-end delivery from concept to production, collaborating with cross-functional teams, and mentoring junior engineers.…I'm Oliver Brown, a Senior Full-Stack Engineer with 8+ years of experience designing and building scalable, cloud-native applications using React, Node.js, and Python. I specialize in microservice architectures, distributed backend systems, and AI-enhanced product features including LLM integrations, RAG pipelines, and vector-based semantic retrieval. I've led architectural decisions, optimized performance, and deployed high-availability systems across AWS, GCP, and Azure. I'm comfortable owning end-to-end delivery from concept to production, collaborating with cross-functional teams, and mentoring junior engineers.

Available to hire

I’m Oliver Brown, a Senior Full-Stack Engineer with 8+ years of experience designing and building scalable, cloud-native applications using React, Node.js, and Python. I specialize in microservice architectures, distributed backend systems, and AI-enhanced product features including LLM integrations, RAG pipelines, and vector-based semantic retrieval.

I’ve led architectural decisions, optimized performance, and deployed high-availability systems across AWS, GCP, and Azure. I’m comfortable owning end-to-end delivery from concept to production, collaborating with cross-functional teams, and mentoring junior engineers.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Work Experience

Senior Full-Stack Engineer (Remote) at DeepSet

October 1, 2022 - October 1, 2025

Led full-stack architecture and development of a scalable microservices platform using React, Node.js (NestJS), Python (FastAPI), PostgreSQL, and AWS. Architected distributed backend services with clear domain boundaries and clean architecture principles. Designed embedding-based semantic search workflows and integrated LLM APIs with optimized prompt orchestration and token controls. Built RAG pipelines using Qdrant vector database for contextual and relevance-ranked document retrieval. Implemented asynchronous background workers for AI processing, ingestion pipelines, and batch inference tasks. Improved API performance by 25–40% via query optimization, Redis caching, and DB indexing. Reduced frontend load times ~70% through code-splitting, SSR/ISR optimization, and intelligent caching. Implemented RBAC using AWS IAM and Cognito. Led CI/CD with Docker and GitHub Actions for zero-downtime deployments. Implemented monitoring/observability with Prometheus, Grafana, and Sentry. Contribut

Full-Stack Engineer at IT Dynamics Australia

July 1, 2017 - September 1, 2022

Developed scalable web and mobile applications using React, Angular, React Native, and Node.js. Designed and implemented RESTful APIs and microservices with FastAPI and Express. Optimized PostgreSQL schemas, indexing strategies, and query performance for reliability at scale. Built event-driven workflows and asynchronous background processing systems. Delivered production features used by 10,000+ active users. Reduced infrastructure costs through backend optimization and cloud tuning. Conducted 150+ code reviews and contributed to engineering best practices and maintainability. Collaborated across the SDLC in Agile/Scrum environments.

Senior Full-Stack Engineer at DeepSet

October 1, 2022 - October 1, 2025

Led full-stack architecture and development of a scalable microservices platform using React, Node.js (NestJS), Python (FastAPI), PostgreSQL, and AWS. Designed distributed backend services with clear domain boundaries and clean architecture principles. Architected embedding-based semantic search workflows and integrated LLM APIs with optimized prompt orchestration and token usage controls. Built RAG pipelines using Qdrant vector database to enable contextual and relevance-ranked document retrieval. Designed synchronous background workers for AI processing, ingestion pipelines, and batch inference tasks. Improved API performance by 25–40% through query optimization, Redis caching layer, and database indexing strategies. Reduced frontend load times by ~70% via code splitting, SSR/ISR optimization, and intelligent caching strategies. Implemented RBAC using AWS IAM and Cognito. Led CI/CD automation using Docker and GitHub Actions, enabling zero-downtime deployments. Implemented monitorin