Open to opportunities

Daniel James

@danieljames2

Senior Software Development Engineer specializing in scalable backend systems, cloud, and full-stack mobile/web solutions.

United States

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What I'm looking for

I seek a role building scalable, user-focused systems with strong engineering practices, cloud-native deployments, mentorship opportunities, and impact-driven product work.

I am a Senior Software Development Engineer with 8+ years building scalable web and mobile applications across e-commerce, fintech, and social platforms.

I design and maintain high-traffic backend services in Go and Python, optimize RESTful APIs and databases (PostgreSQL, MySQL), and modernize legacy systems to cloud-native architectures on AWS and Google Cloud.

I build full-stack features with React/React Native, Next.js/Nuxt.js, Node.js/Express and mobile apps in Swift and Kotlin, improving performance and SEO — reducing LCP from ~4.5s to ~2s and raising Core Web Vitals pass rate from ~55% to ~90%.

I also work in AI/ML (TensorFlow, PyTorch, SageMaker), blockchain and smart contracts (Solidity, Web3.js), mentor engineers, lead architecture decisions, and deliver production-ready solutions that align technical and business goals.

Experience

Work history, roles, and key accomplishments

Senior Software Development Engineer

Stone Soup

Oct 2022 - Nov 2025 (3 years 1 month)

Designed and maintained scalable Go backend services and RESTful APIs for customer-facing web and mobile apps serving 80K+ users, reducing average response times by 30–40% and cutting production incidents by ~30% through cloud-native migrations.

Go PostgreSQL RESTful APIs Kubernetes AWS Cloud Architecture Performance Optimization API Design

Mobile / Full Stack Developer

Engage Coders

Dec 2019 - Oct 2022 (2 years 10 months)

Designed and developed React Native mobile apps and full-stack features for fintech, social, and e-commerce products, improving organic product page traffic ~25% via Next.js SSR and SEO improvements and reducing LCP from ~4.5s to ~2s.

React Native React Next.js PostgreSQL Swift Kotlin SEO Performance Optimization

Software Development Intern

Equal Infotech

Mar 2018 - Nov 2019 (1 year 8 months)

Contributed backend and web development for an e-commerce platform, assisting in RESTful API development, database management, and production troubleshooting to improve system stability.