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Top freelance Handlebars.js developers available to hire
I love breaking down complex problems into small, understandable pieces. I want you to leave our sessions feeling more capable than before we met, so that you can confidently move forward knowing that if you encounter a similar problem again, that you're prepared and ready to tackle it yourself.
With over 13 years of corporate experience, including 5 years working extensively with React and TypeScript, I bring a wealth of practical knowledge to our sessions. Recently, I left the corporate world to pursue my passion for developing a Crypto Video game full-time.
In my free time, I’m dedicated to helping others enter the tech industry by demystifying the often intimidating barriers it presents. My goal is to empower you to overcome any obstacles you encounter, giving you the tools and confidence to solve similar problems independently in the future.
I'm excited about the opportunity to work with you and help you achieve your goals in the tech industry.
Looking forward to our journey together!
Are you looking for a hands-on Full-Stack Architect who can build, scale, and support high-performance AI and SaaS platforms from the ground up? With over 10 years of professional experience—I specialize in architecting fast, secure, and resilient applications with real-time, AI-integrated capabilities.
**What I Bring to the Table**
🚀 **AI-SaaS Execution:** At MSBAI, I built the admin platform for the GURU Assistant, an LLM agent that diagnoses and fixes technical issues in scientific workflows. I’ve debugged AI-generated code, optimized ML pipelines in real-time, and translated LLM outputs into production-ready tooling.
⚙️ **Scalable Architectures:** From building live simulation UIs to secure multi-tenant marketplaces and 3D modeling SaaS apps, I’ve delivered systems that serve thousands of concurrent users with high availability.
🧠 **Full-Stack Mastery:** Expertise in TypeScript, React, Next.js, Node.js, Go, PostgreSQL, GraphQL, and low-latency backends using Rust and serverless functions on AWS and Supabase.
🛠 **Cross-Domain Versatility:** I’ve worked on platforms ranging from MLOps and scientific computing (MSBAI) to edtech mentorship networks (Scholarly) and cybersecurity labs (Xintra).
💬 **Developer Empathy + AI Support:** I’ve supported developers using AI agents by debugging generated code, writing CLI tooling, and guiding teams through adopting LLMs effectively in their workflows.
**Why Work With Me**
🔧 **End-to-End Ownership:** I thrive in fast-paced teams—leading system design, writing clean production code, and mentoring devs while delivering measurable impact.
🧰 **Startup-Ready Mindset:** I’m equally comfortable building MVPs from scratch or modernizing legacy systems to support scale and maintainability.
📈 **Proven Outcomes:** I've shipped everything from Slack-integrated dashboards and Gmail margin calculators to low-code builders and cross-platform mobile apps.
**Tech Proficiency**
* **Frontend:** React.js, Next.js, Tailwind CSS, React Native
* **Backend:** Node.js, Express, GraphQL, Rust (Axum), Python (FastAPI)
* **Data & AI:** PostgreSQL, Supabase, MongoDB, Redis, LLM workflows
* **Cloud & Infra:** AWS, Supabase, Docker, GitHub Actions, Vercel
* **DevOps & Testing:** Cypress, GitLab CI/CD, Terraform, observability stacks
**Industries Served**
* 🧪 ML/AI Ops (MSBAI)
* 🌐 SaaS & Developer Tools (Xintra, Scholarly)
* 🏥 Healthtech (Loop Health)
* 🎮 Gaming Platforms (Joyride, Kiwi)
* 🛍️ E-Commerce (GlowRoad)
Let’s collaborate—whether you’re scaling an AI-native SaaS platform, building a developer-first observability tool, or launching a privacy-first user experience, I bring speed, technical depth, and real-world execution.
**Senior Frontend Engineer | JavaScript & React Specialist**
I’m a senior software engineer with 10+ years of experience delivering reliable, scalable web applications. I turn complex requirements into clean, maintainable solutions that drive real impact quickly.
Beyond coding, I’m passionate about improving team workflows, mentoring developers (including several years guiding students and professionals on Codementor), and ensuring projects move smoothly from idea to production.
I’ve helped startups and established companies accelerate development cycles, improve product quality, and scale platforms serving thousands of users daily. Along with deep technical expertise, I bring the ability to collaborate, guide, and deliver measurable results.
**Core skills:** React.js, Next.js, Node.js, TypeScript/JavaScript, databases (SQL/MongoDB), Tailwind, HTML/CSS, UX/UI, deployments on Vercel & AWS.
I try to help those who are just starting out down their path to becoming a developer. Frontend Javascript and Typescript frameworks are what I am best at, but I can design and build a webpage the hard way if need be.
I've been exposed to the web development world since I was 15 and I've been a developer since I was 25.
Hi, I'm Adrián!
**Software Engineer with +7 years of experience** based in Buenos Aires, Argentina and I'm available for long-term contracts, freelance jobs and web development mentoring.
You need someone that knows the ins and outs of Software, AI, and UX. I'm an experienced AI Engineer, Software and Web Expert, and User Experience Researcher that has worked for JPMorgan Chase, the United Nations, American Express, AT&T, and Lockheed Martin as well as for several startups and small businesses.
> 100% success rate - full refund if I cannot solve your problem.
Are you a software engineer dealing with tough problems?
Recent bootcamp/college grad feeling overwhelmed?
New job and struggling to keep up?
Obscure technical problems in your code? I can help!
<sub>My rate reflects my success guarantee and familiarity with the latest tech. You're paying for quality.</sub>
### Background
___
Seasoned full-stack Silicon Valley engineer.
7+ years of experience building & deploying robust applications from conception to production at large-tech company scale and startups.
My core principle is **empathy** - understanding your unique situation & background allows me to work with you to develop the ideal solution for your problems.
I enjoy teaching and promise you will leave our session having learned something new.
### Skills
___
I specialize in the Javascript stack with expertise in Typescript.
Well-versed in building backend services and serverless functions in Node.js, talking to SQL/no-SQL databases, and frontend applications in React and Next.js.
I can help in every step of the stack - from app conception to deployment (AWS, Vercel) and scaling, including local development best practices, testing, logging/alerting, and structure/layout. Typescript is my magic weapon.
I pride myself on strong written + oral communication skills, and I know how to convey the right amount of information in a package unique to your understanding of a topic.
<sub>If you want expertise beyond my listed skills, reach out. I may offer a discount if you need to accomplish a task using technology I'm interested in learning about.</sub>
I've been blessed with many wonderful opportunities throughout my career, which have helped me grow not only as a professional, but as a person. My greatest pleasure comes from witnessing the transformation of a mentoree in both confidence and knowledge!
When I'm done with work for the day I transition to my own open source projects: ranging from
- zero-dependency DI framework in Kotlin
- persistent/immutable data structure library in Kotlin
I'm learning K8s by running a raspberry pi cluster in a basement server rack for home automation. Enough about me, let's get to work on improving your current situation!
Running at a low rate until I get some reviews!
Currently a co-founder at my virtual reality start-up, Anarchist.com.
Previously an engineer at Groupon where I automated financial systems with Rails, Clojure, MySQL, Postgres, MongoDB/TokuMX, Salesforce, and more.
I've been developing and programming forever. It is what I do.
I *love* helping people.
I know many languages and methods. I've implemented many different things and I can usually find solutions to issues in a heartbeat. Let me help you , you will be glad you did.
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Frequently asked questions
How long do Handlebars.js projects normally take?
The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance Handlebars.js project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance Handlebars.js request on Codementor, check out our article.
How much does it cost to hire a freelance Handlebars.js developer?
We don’t charge anything when you post a freelance hiring request for Handlebars.js developers! You’ll have the chance to determine what the budget for your project is when you post the request. You’ll only need to pay the developer if you’re 100% satisfied with their work. Please know that Codementor charges a small service fee when a developer completes the job.
What makes Codementor Handlebars.js developers different?
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What happens if I’m not happy with the freelancer’s work?
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