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I’m a senior full-stack software engineer focused on building secure, scalable, data-intensive web applications and AI-enabled workflows. Over 7+ years, I’ve designed and delivered end-to-end systems—from React/TypeScript and Node.js experiences to Java backends and SQL-optimized data layers—while improving performance, reliability, and developer velocity. I enjoy turning complex requirements into maintainable microservices and cloud-native architectures, including event-driven integrations and production-grade SaaS deployments on AWS. I’m also deeply interested in practical AI engineering (LLMs, RAG, guardrails, and agentic workflows), and I bring a security-first mindset using proven patterns for authentication, API protection, and safe automation.…I’m a senior full-stack software engineer focused on building secure, scalable, data-intensive web applications and AI-enabled workflows. Over 7+ years, I’ve designed and delivered end-to-end systems—from React/TypeScript and Node.js experiences to Java backends and SQL-optimized data layers—while improving performance, reliability, and developer velocity. I enjoy turning complex requirements into maintainable microservices and cloud-native architectures, including event-driven integrations and production-grade SaaS deployments on AWS. I’m also deeply interested in practical AI engineering (LLMs, RAG, guardrails, and agentic workflows), and I bring a security-first mindset using proven patterns for authentication, API protection, and safe automation.

Felix Liew

Full Stack Developer, AI Developer, Software Engineer, +5

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I’m a senior full-stack software engineer focused on building secure, scalable, data-intensive web applications and AI-enabled workflows. Over 7+ years, I’ve designed and delivered end-to-end systems—from React/TypeScript and Node.js experiences to Java backends and SQL-optimized data layers—while improving performance, reliability, and developer velocity. I enjoy turning complex requirements into maintainable microservices and cloud-native architectures, including event-driven integrations and production-grade SaaS deployments on AWS. I’m also deeply interested in practical AI engineering (LLMs, RAG, guardrails, and agentic workflows), and I bring a security-first mindset using proven patterns for authentication, API protection, and safe automation.…I’m a senior full-stack software engineer focused on building secure, scalable, data-intensive web applications and AI-enabled workflows. Over 7+ years, I’ve designed and delivered end-to-end systems—from React/TypeScript and Node.js experiences to Java backends and SQL-optimized data layers—while improving performance, reliability, and developer velocity. I enjoy turning complex requirements into maintainable microservices and cloud-native architectures, including event-driven integrations and production-grade SaaS deployments on AWS. I’m also deeply interested in practical AI engineering (LLMs, RAG, guardrails, and agentic workflows), and I bring a security-first mindset using proven patterns for authentication, API protection, and safe automation.

Available to hire

I’m a senior full-stack software engineer focused on building secure, scalable, data-intensive web applications and AI-enabled workflows. Over 7+ years, I’ve designed and delivered end-to-end systems—from React/TypeScript and Node.js experiences to Java backends and SQL-optimized data layers—while improving performance, reliability, and developer velocity.

I enjoy turning complex requirements into maintainable microservices and cloud-native architectures, including event-driven integrations and production-grade SaaS deployments on AWS. I’m also deeply interested in practical AI engineering (LLMs, RAG, guardrails, and agentic workflows), and I bring a security-first mindset using proven patterns for authentication, API protection, and safe automation.

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Work Experience

Senior Software Engineer – AI Applications at Snappymob

March 13, 2024 - June 18, 2026

Architected React, TypeScript, and Java user workflows, analytics dashboards, data grids, filters, and employer-style operational tools, cutting load time by 10% through virtualization, state optimization and targeted profiling. Engineered secure REST and SOAP integration services using Java, Spring Security, JSON/XML, and AMQP/RabbitMQ, enabling near-real-time data exchange and straight-through processing across 3 integration layers: customer portals, internal platforms, and third-party systems. Delivered AWS-hosted SaaS workloads using 6 core AWS services—EC2, RDS, S3, SQS and Lambda—while containerizing applications with Docker/Kubernetes and provisioning infrastructure through Terraform for scalable, fault-tolerant deployments.

Backend Engineer – Security, AI & ML at XANTEC Solutions

March 10, 2022 - September 18, 2023

Developed secure agentic AI workflows using Amazon Bedrock, Bedrock Guardrails, ECS, and MCP with LLM routing, tool execution, validation, and human approval controls. Created event-driven integrations supporting 16 webhook event categories and 3 delivery methods—HTTP/HTTPS, AWS SQS, and Slack—with secure HMACSHA256 verification. Implemented AI auto-scheduling using 5 optimization factors—availability, skills, labor rules, wage budgets, and working-hour limits—to generate compliant workforce schedules.

Junior Web Developer at Infinetworx

June 10, 2019 - March 7, 2022

Built customer-facing web application features supporting communication and business workflows using JavaScript-based frontend technologies and backend services. Implemented API integrations to connect user-facing workflows with internal systems and consolidate data required for application features.