Howard Johnson - Senior Full-Stack Developer

Q: Where is Howard based?

Howard is based in Bath, United Kingdom .

Q: What languages does Howard speak?

Howard speaks the following languages: Indonesian (Native), English (Advanced) .

Q: How many years of experience does Howard have?

Howard has at least 6 years of experience. During this time, Howard has worked in at least 4 different roles and for 4 different companies . The average length of individual experience is 1 year and 7 months . Note that Howard may not have shared all experience and actually has more experience.

Q: What is Howard's latest experience?

Howard's most recent position is Senior Full-Stack Developer at Wolfpack Digital .

Q: What companies has Howard worked for in recent years?

In recent years, Howard has worked for Wolfpack Digital and Yellow .

Q: Which industries is Howard most experienced in?

Howard is most experienced in industries like Information Technology (IT) and Retail .

Q: Which business areas is Howard most experienced in?

Howard is most experienced in business areas like Information Technology (IT) , Product Development , and Business Intelligence . Howard also has some experience in Quality Assurance (QA) .

Q: Which industries has Howard worked in recently?

Howard has recently worked in industries like Information Technology (IT) and Retail .

Q: Which business areas has Howard worked in recently?

Howard has recently worked in business areas like Information Technology (IT) , Product Development , and Business Intelligence .

Recommended expert

Bath, United Kingdom

Experience

Dec 2023 - Sep 2025

1 year 10 months

Kirkland, United States

Senior Full-Stack Developer

Wolfpack Digital

Spearheaded the end-to-end development of a high-traffic e-commerce platform utilizing React, Next.js, Node.js, Java (Spring Boot), and Go microservices, backed by MongoDB and AWS infrastructure (EC2, RDS, ElastiCache, Lambda), resulting in a 40% surge in user engagement and a 25% decrease in page load times.
Pioneered the integration of AI-driven recommendation engines powered by TensorFlow and PyTorch, analyzing user behavior patterns to deliver hyper-personalized content, which elevated conversion rates by 30% and positioned the platform as a leader in user-centric innovation.
Directed a cross-functional team of 8 developers, conducting regular code reviews, implementing agile methodologies, and providing mentorship on full-stack best practices, including seamless AI/ML integrations, which enhanced team productivity by 35% and reduced project delivery timelines.
Architected robust microservices infrastructure using Docker and Kubernetes for containerization and orchestration, ensuring high availability, fault tolerance, and zero-downtime deployments for mission-critical applications serving millions of users.
Collaborated with product managers and UX designers to implement secure authentication and authorization systems leveraging OAuth, JWT, and advanced encryption techniques, mitigating security risks by 50% and complying with industry standards like GDPR and CCPA.
Optimized application performance through in-depth profiling and refactoring of legacy code, incorporating tools like New Relic for monitoring, which led to a 45% improvement in response times and significant cost savings on cloud resources.
Led cloud-native transformation on AWS (ECS, S3, CloudFront, Lambda@Edge, Step Functions), reducing infrastructure costs by 38% while scaling to millions of daily active users.

Jul 2020 - Aug 2023

3 years 2 months

San Francisco, United States

Full-Stack Developer

Yellow

Engineered enterprise-level SaaS applications with Vue.js/Nuxt.js frontend and Python/Django, Java (Spring), and Go (Fiber/Gin) backend services, incorporating real-time features via WebSockets and AWS SNS/SQS that boosted system responsiveness by 35%.
Designed and deployed ML-powered analytics dashboards on AWS SageMaker and EC2, utilizing PyTorch and Pandas, delivering actionable insights that reduced client overhead by 20%.
Enhanced database efficiency by optimizing complex queries in PostgreSQL and refining API endpoints with Express.js, achieving a 45% performance uplift for data-heavy modules and ensuring smooth handling of high-volume transactions.
Established automated CI/CD pipelines using GitHub Actions and Jenkins, automating testing and deployment workflows that shortened release cycles from weeks to days, minimized human error, and accelerated time-to-market for new features.
Actively contributed to open-source communities, developing AI-enhanced tools for web automation that garnered over 500 stars and forks, demonstrating thought leadership and fostering collaborations with industry peers.
Integrated third-party services and APIs for advanced functionalities, such as natural language processing with TensorFlow.js, which improved user query handling accuracy by 28% and enriched application intelligence.

Nov 2018 - Apr 2020

1 year 6 months

Matlock, United Kingdom

Junior Full-Stack Web Developer

Human Made

Played a key role in migrating legacy Ruby on Rails monoliths into Java (Spring Boot) and Go microservices deployed on AWS ECS/Fargate, improving scalability and reducing deployment times by 60%.
Incorporated AI capabilities through third-party APIs for sentiment analysis and predictive modeling, enhancing application interactivity and user satisfaction ratings by 25%, while gaining deep insights into ML deployment in production environments.
Identified and resolved intricate bugs in legacy codebases using debugging tools like Chrome DevTools and Rails console, improving overall system stability, reducing crash rates by 40%, and ensuring uninterrupted service for end-users.
Developed responsive and mobile-first user interfaces with TypeScript and SCSS, adhering to WCAG accessibility standards to create inclusive experiences that performed flawlessly across devices and browsers.
Supported cloud migrations by transitioning on-premise data to AWS services like EC2 and S3, enabling scalable infrastructure that accommodated rapid user growth and provided 99.9% uptime.
Participated in agile sprints, collaborating with designers and stakeholders to iterate on features, incorporating user feedback loops that refined product roadmaps and accelerated feature adoption.
Assisted in building custom GraphQL APIs to replace REST endpoints, streamlining data fetching and reducing payload sizes by 30%, which optimized frontend performance and developer efficiency.

Mar 2018 - Jul 2018

5 months

Jakarta, Indonesia

Front-End Web Developer Intern

Pt. Astra International Tbk Company

Contributed to the creation of engaging web interfaces using JavaScript, React, and modern CSS frameworks, supporting the launch of a flagship product that attracted over 10,000 active users within the first quarter.
Gained foundational full-stack exposure by assisting with backend tasks in Node.js, including API development and database integrations, which broadened technical skill set and prepared for advanced roles.
Performed rigorous code testing and quality assurance using frameworks like Jest, identifying UI inconsistencies and accessibility issues to deliver polished, user-friendly experiences.
Engaged in collaborative team environments through daily stand-ups and code reviews, absorbing industry best practices in version control with Git and agile project management.
Assisted in SEO optimizations and performance tuning for web pages, implementing lazy loading and compression techniques that enhanced site speed scores by 35% on tools like Google PageSpeed Insights.

Summary

Seasoned Senior Full-Stack Developer with over 8 years of experience architecting and delivering mission-critical, cloud-native platforms that power millions of users and drive measurable business impact.

Expert in modern full-stack ecosystems: React/Next.js, Vue/Nuxt, TypeScript, Node.js, Go, Java (Spring Boot), Python/FastAPI, and event-driven microservices orchestrated on AWS (EKS, Lambda, DynamoDB, RDS Aurora). Proven track record of leading end-to-end migrations from legacy monoliths to scalable, serverless-first architectures while slashing infrastructure costs by up to 40%.

Deep production experience integrating AI/ML capabilities — recommendation engines, predictive analytics, RAG pipelines, and LLM-powered features — using PyTorch, TensorFlow, LangChain, and AWS SageMaker, resulting in double-digit gains in personalization and automation.

Strategic leader who has directed cross-functional teams of 8+, instituted rigorous engineering standards, and accelerated delivery velocity by over 35% through agile transformation, advanced CI/CD, and mentorship of mid/senior talent. Passionate about writing clean, type-safe, observable code and crafting exceptional user experiences that blend performance, accessibility, and cutting-edge intelligence.

Skills

React, Next.js, Redux, Zustand, Context Api
Vue.js, Nuxt, Angular.js, Svelte, Vite
Javascript (Es6+), Typescript, C++, C#
Responsive Design, Html5, Css3, Scss
Bootstrap, Web Accessibility, Tailwind Css
Styled-components
Node.js, Express
Python, Django/flask-style Apis, Fastapi, Rest Apis
Ruby (Rails-style Mvc Concepts)
Java (Spring Boot), Go
Kubernetes (Helm, Argocd, Keda), Docker
Grpc, Websockets
Serverless Framework
Numpy, Pandas, Scikit-learn
Digital Ocean
Authentication And Authorization (Jwt, Sessions, Oauth)
Mysql, Sql, Postgresql, Mongodb, Dynamodb, Nosql, Redis (Redisstack), Planetscale, Supabase, Prisma Orm
Data Preprocessing
Tensorflow, Pytorch, Tensorflow.js
Aws (Ec2, S3, Lambda, Ecs, Eks, Rds, Dynamodb, S3, Cloudfront, Lambda@edge, Sagemaker, Step Functions)
Git, Github
Ci/cd Pipelines, Github Actions, Jenkins, Argocd
Cross-browser Compatibility, Web Vitals
Playwright, Cypress, End-to-end Testing, Jest, Rspec
Jira, Trello, Notion, Clickup, Slack
Modern Full-stack Architecture: Proven Expertise In Designing And Delivering Cloud-native, High-traffic Applications Using React/next.js, Vue/nuxt, Node.js, Go, Java (Spring Boot), Python/django, And Microservices Patterns, Consistently Achieving 30–50% Gains In Performance, Scalability, And Developer Velocity.
Cloud And Devops Leadership: Hands-on Architect Of Production Systems On Aws (Eks, Ecs, Lambda, Rds, Dynamodb, S3, Cloudfront, Sagemaker), Specializing In Cost Optimization, Auto-scaling, Ci/cd Orchestration, And Zero-downtime Deployments With Docker, Kubernetes, And Infrastructure-as-code.
Performance Optimization: Deep Experience In Advanced Optimization Techniques — Code Splitting, Lazy Loading, Server-side Rendering, Edge Caching, Database Query Tuning, And Profiling — Routinely Delivering Sub-1-second Load Times And 90+ Lighthouse Scores On Enterprise Platforms.
Testing And Quality Assurance: Experienced In Tdd And Maintaining Large Test Suites Using Rspec, Jest, And Cypress, Achieving High Code Coverage And Minimizing Regressions In Collaborative Settings.
Collaboration And Leadership: Pragmatic Team Player With Experience Leading Developers, Mentoring Juniors, And Partnering With Backend/ux Teams To Deliver Features Via Agile/scrum Methodologies.
Adaptability And Learning: Quick To Adapt To Full-stack Realities, With Exposure To React In Rails Views And A Curiosity For Emerging Tools To Ensure Innovative, Maintainable Solutions.

Languages

Indonesian

Native

English

Advanced

Education

Feb 2015 - Mar 2018

University of Indonesia

Bachelor's Degree in Computer Science · Computer Science · Depok, Indonesia

Certifications & licenses

Freecodecamp Certificate fcc233c2a12 data-analysis-with-python-v7

Freecodecamp Certificate fcc233c2a12 front-end-development-libraries

Freecodecamp Certificate fcc233c2a12 javascript-algorithms-and-data-structures

Freecodecamp Certificate fcc233c2a12 legacy-front-end

Freecodecamp Certificate fcc233c2a12 responsive-web-design

Hackerrank Certificate 3b02915b1da4

Hackerrank Certificate 54e05f5e14c9

Hackerrank Certificate 8d841f374c03

Profile

Created

February 2026

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Howard based?

Howard is based in Bath, United Kingdom.

What languages does Howard speak?

Howard speaks the following languages: Indonesian (Native), English (Advanced).

How many years of experience does Howard have?

Howard has at least 6 years of experience. During this time, Howard has worked in at least 4 different roles and for 4 different companies. The average length of individual experience is 1 year and 7 months. Note that Howard may not have shared all experience and actually has more experience.

What roles would Howard be best suited for?

Based on recent experience, Howard would be well-suited for roles such as: Senior Full-Stack Developer, Full-Stack Developer, Junior Full-Stack Web Developer.

What is Howard's latest experience?

Howard's most recent position is Senior Full-Stack Developer at Wolfpack Digital.

What companies has Howard worked for in recent years?

In recent years, Howard has worked for Wolfpack Digital and Yellow.

Which industries is Howard most experienced in?

Howard is most experienced in industries like Information Technology (IT) and Retail.

Which business areas is Howard most experienced in?

Howard is most experienced in business areas like Information Technology (IT), Product Development, and Business Intelligence. Howard also has some experience in Quality Assurance (QA).

Which industries has Howard worked in recently?

Howard has recently worked in industries like Information Technology (IT) and Retail.

Which business areas has Howard worked in recently?

Howard has recently worked in business areas like Information Technology (IT), Product Development, and Business Intelligence.

What is Howard's education?

Howard holds a Bachelor in Computer Science from University of Indonesia.

Does Howard have any certificates?

Howard has 17 certificates. Among them, these include: Freecodecamp Certificate fcc233c2a12 data-analysis-with-python-v7, Freecodecamp Certificate fcc233c2a12 data-analysis-with-python-v7, and Freecodecamp Certificate fcc233c2a12 data-analysis-with-python-v7.

What is the availability of Howard?

Howard will be available full-time from February 2026.

What is the rate of Howard?

Howard's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.