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Hi, I'm John Nwatu, a full-stack engineer with 4+ years of experience building scalable web platforms and commerce-ready application architecture.\n\nI've built high-traffic services across content catalogs, stateful APIs, and data pipelines, translating complex workflows into maintainable systems, documentation, and launch-ready experiences that raised service quality by 27% and sustained 99.95% uptime across customer-facing releases at scale.…Hi, I'm John Nwatu, a full-stack engineer with 4+ years of experience building scalable web platforms and commerce-ready application architecture.\n\nI've built high-traffic services across content catalogs, stateful APIs, and data pipelines, translating complex workflows into maintainable systems, documentation, and launch-ready experiences that raised service quality by 27% and sustained 99.95% uptime across customer-facing releases at scale.

John Nwatu

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

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Hi, I'm John Nwatu, a full-stack engineer with 4+ years of experience building scalable web platforms and commerce-ready application architecture.\n\nI've built high-traffic services across content catalogs, stateful APIs, and data pipelines, translating complex workflows into maintainable systems, documentation, and launch-ready experiences that raised service quality by 27% and sustained 99.95% uptime across customer-facing releases at scale.…Hi, I'm John Nwatu, a full-stack engineer with 4+ years of experience building scalable web platforms and commerce-ready application architecture.\n\nI've built high-traffic services across content catalogs, stateful APIs, and data pipelines, translating complex workflows into maintainable systems, documentation, and launch-ready experiences that raised service quality by 27% and sustained 99.95% uptime across customer-facing releases at scale.

Available to hire

Hi, I’m John Nwatu, a full-stack engineer with 4+ years of experience building scalable web platforms and commerce-ready application architecture.\n\nI’ve built high-traffic services across content catalogs, stateful APIs, and data pipelines, translating complex workflows into maintainable systems, documentation, and launch-ready experiences that raised service quality by 27% and sustained 99.95% uptime across customer-facing releases at scale.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Large Language Models

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior Software Engineer at Amazon Prime Video

December 1, 2022 - Present

Led design of AWS-backed state distributed APIs with 4 product managers for 2 Prime Video sports workflows. Developed schedule validation services using Large Language Models that analyzed partner schedules against 3 catalog datasets. Coordinated with 5 cross-functional counterparts and implemented computer vision slate detection in production. Assessed code changes through design reviews, documented service behavior, and communicated risks during technical discussions with 6 engineers. Diagnosed issues in production and non-production environments, recommended validation thresholds, and mentored 3 engineers on automated test systems.

Software Engineer at Google LLC

July 1, 2020 - December 1, 2022

Designed in-memory distributed key-value services that raise real-time ads availability to 99.99% across 7 serving clusters. Evaluated low-rate observability gaps, collaborated with 4 pipeline owners, and initiated low-latency data migration improving coverage by 20%. Facilitated delivery with 6 engineering and product teams to build MapReduce extraction services for new vertical data. Guided 5 engineers during code reviews, partnered with architects, and validated changes against internal standards.

Software Engineer at Twitter, Inc.

January 1, 2020 - April 1, 2020

Implemented MapReduce ingestion jobs with 4 search engineers, processing 15M tweet records daily using Scalding. Authored dry-run staging workflows that reduced offline ingestion time by 40% and improved planning accuracy. Revised archive ingester modules from Java to Scala and validated unit tests to strengthen maintainability.

Software Engineer at QUALCOMM, Inc.

June 1, 2019 - August 1, 2019

Streamlined performance reporting with 8 researchers, enabling faster comparison of memory allocation schemes on Snapdragon Hexagon. Improved C++ neural network kernels, increasing evaluation throughput by 10% on Snapdragon DSP targets.

Software Engineer at QUALCO M M INC

June 1, 2019 - August 1, 2019

Evaluated neural network performance across 3 memory schemes, improving benchmark throughput by 10% for 4 chip-set teams. Verified Hexagon DSP kernel behavior, implemented automated reporting pipelines, and shortened model evaluation cycles by 15%.