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Senior Full Stack Software Developer with 9+ years of experience building scalable web and mobile applications for international clients, including AI-powered consumer experiences and high-volume B2B platforms. Strong in microservices architecture, real-time systems, and technical leadership across remote teams. Experienced in integrating LLMs and optimizing AI workflows with prompt engineering, caching, and streaming to improve latency and user satisfaction. Proficient across JavaScript/TypeScript and Python stacks, with AWS/GCP and modern React/Next.js and mobile development using React Native.…Senior Full Stack Software Developer with 9+ years of experience building scalable web and mobile applications for international clients, including AI-powered consumer experiences and high-volume B2B platforms. Strong in microservices architecture, real-time systems, and technical leadership across remote teams. Experienced in integrating LLMs and optimizing AI workflows with prompt engineering, caching, and streaming to improve latency and user satisfaction. Proficient across JavaScript/TypeScript and Python stacks, with AWS/GCP and modern React/Next.js and mobile development using React Native.

Ricky Gagui

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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Senior Full Stack Software Developer with 9+ years of experience building scalable web and mobile applications for international clients, including AI-powered consumer experiences and high-volume B2B platforms. Strong in microservices architecture, real-time systems, and technical leadership across remote teams. Experienced in integrating LLMs and optimizing AI workflows with prompt engineering, caching, and streaming to improve latency and user satisfaction. Proficient across JavaScript/TypeScript and Python stacks, with AWS/GCP and modern React/Next.js and mobile development using React Native.…Senior Full Stack Software Developer with 9+ years of experience building scalable web and mobile applications for international clients, including AI-powered consumer experiences and high-volume B2B platforms. Strong in microservices architecture, real-time systems, and technical leadership across remote teams. Experienced in integrating LLMs and optimizing AI workflows with prompt engineering, caching, and streaming to improve latency and user satisfaction. Proficient across JavaScript/TypeScript and Python stacks, with AWS/GCP and modern React/Next.js and mobile development using React Native.

Available to hire

Senior Full Stack Software Developer with 9+ years of experience building scalable web and mobile applications for international clients, including AI-powered consumer experiences and high-volume B2B platforms. Strong in microservices architecture, real-time systems, and technical leadership across remote teams.

Experienced in integrating LLMs and optimizing AI workflows with prompt engineering, caching, and streaming to improve latency and user satisfaction. Proficient across JavaScript/TypeScript and Python stacks, with AWS/GCP and modern React/Next.js and mobile development using React Native.

Skills

Experience Level

Expert

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Language

English

Advanced

Work Experience

Senior Full Stack Developer (Remote) at Saakuru Labs

April 1, 2024 - July 1, 2026

Contributed to Saakuru Labs’ transition into AI-native consumer products, supporting engineering execution and AI-enabled application development across emerging product lines. Worked on AI-powered interactive experiences including Hyperbond Studio/Call Me Sensei, combining language learning, AI characters, relationship progression, and interactive storytelling. Architected microservices-based systems using NestJS for core services and FastAPI for AI processing pipelines deployed on AWS ECS with RDS PostgreSQL and ElastiCache. Built Next.js 14 admin and customer portals with Server Components and React Server Actions. Integrated OpenAI GPT-4 API with prompt engineering and fine-tuning, achieving reported high response accuracy and customer satisfaction. Implemented real-time chat using WebSockets (Socket.io) with Redis pub/sub for horizontal scaling; reduced AI response latency via multi-layer caching, streaming (SSE), and predictive pre-generation. Led React Native development for

Full Stack Developer (Remote) at Aptive Environmental

May 1, 2020 - March 1, 2024

Developed and enhanced enterprise web applications supporting Aptive Environmental’s pest-control operations across sales, customer service, field service, and branch operations. Built workflows for customer accounts and service management including agreements, appointments, billing details, and ongoing services. Implemented scheduling and rescheduling capabilities, and created internal field-service tools for technician assignments, daily routes, customer history, service notes, and treatment records. Delivered sales workflow features covering lead management, service-plan enrollment, contracts, and sales activity tracking. Built dashboards and reporting for sales performance, retention, service activity, and branch operations. Developed and maintained APIs and integrations across customer, sales, scheduling, billing, and field-service systems. Improved performance of high-volume workflows through query optimization, indexing, caching, and backend improvements. Supported customer-

Junior Full Stack Developer (On-site) at Web Creek

August 1, 2017 - April 1, 2020

Developed a cloud-based multi-tenant SaaS restaurant management system for a chain with 8 locations and 200+ daily staff users. Built a responsive POS interface using React with Material-UI and Redux. Created a real-time kitchen display system using Socket.io for instant front-of-house to kitchen communication. Implemented inventory tracking with low-stock alerts, supplier ordering workflows, and usage analytics. Developed reporting dashboards covering sales analytics, inventory management, labor costs, and performance metrics. Designed an Express/Node.js backend API with MySQL implementing multi-tenancy via schema-per-tenant approach and improved performance by adding indexes and optimizing JOINs. Deployed on AWS using EC2, RDS MySQL with automated backups, and S3 for document storage. Reduced processing errors and food waste through improved digital workflows and better inventory tracking; system handled 15K+ weekly orders with high uptime. Also built a school management system usi