You will get Legacy System Modernization Plan
Top Rated
Project details
Is your business being held back by outdated, inefficient, and risky legacy software? You're not alone. Many successful companies find their growth stalls because their core technology can't keep up. The fear of a complex, disruptive, and expensive migration often leads to inaction, but the cost of doing nothing is even higher.
This project is your solution. We provide a safe, strategic, and comprehensive roadmap to modernize your systems with confidence. We specialize in de-risking the entire process, transforming a daunting challenge into a manageable, phased project.
Our team of senior architects does more than just recommend new technology. We dive deep into your business processes to design a future-state system that not only works better but also unlocks new efficiencies and capabilities for your team. We are experts in managing the critical transition from old to new.
We deliver a detailed, step-by-step plan that you can use to gain stakeholder buy-in, set realistic budgets, and guide the development process.
Stop letting your old technology dictate your future. Let’s build your path forward.
This project is your solution. We provide a safe, strategic, and comprehensive roadmap to modernize your systems with confidence. We specialize in de-risking the entire process, transforming a daunting challenge into a manageable, phased project.
Our team of senior architects does more than just recommend new technology. We dive deep into your business processes to design a future-state system that not only works better but also unlocks new efficiencies and capabilities for your team. We are experts in managing the critical transition from old to new.
We deliver a detailed, step-by-step plan that you can use to gain stakeholder buy-in, set realistic budgets, and guide the development process.
Stop letting your old technology dictate your future. Let’s build your path forward.
Programming Languages
PHP, JavaScript, Ruby/Ruby on RailsCoding Expertise
Performance Optimization, Security, DesignWhat's included
| Service Tiers |
Starter
$2,000
|
Standard
$4,500
|
Advanced
$9,000
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 18 days |
Number of Revisions | 0 | 0 | 0 |
Bug Investigation | - | - | - |
Fix Documentation | - | - | - |
Detailed Code Comments | - | - | - |
Optional add-ons
You can add these on the next page.
Bug Investigation
(+ 2 Days)
+$1,000
Fix Documentation
(+ 2 Days)
+$1,000Frequently asked questions
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SA
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Mar 3, 2026
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Cole N.
May 2, 2025
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Jack did a good job. He completed all tasks and made necessary revisions at a reasonable rate. He clearly articulated his process and deliverables.
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Feb 16, 2025
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Patrick A.
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About Jack
Senior Full-stack Developer and Technical Leader
100%
Job Success
Ho Chi Minh City, Vietnam - 2:16 pm local time
My background is hands-on engineering, not slideware. I came up building high-traffic Ruby on Rails systems and complex web applications, and I still stay close to the architecture, the hard technical calls, and the code that has to hold up in production. Over 12+ years I've grown that into a team that does it at scale: 90+ people co-located in one Ho Chi Minh City office, including 75+ engineers (60+ web, 15+ mobile) plus QA, BAs, PMs, and designers.
So when you work with me, you get an engineer who understands your problem at the technical level, and a full team to deliver it.
WHERE I GO DEEP
- Ruby on Rails: high-traffic systems, complex domains, API design, and legacy codebases most people won't touch
- Frontend: React, Next.js, Vue.js, TypeScript, building interfaces that stay fast and maintainable as they grow
- Cloud & DevOps: AWS, Google Cloud, Heroku, Docker, CI/CD, monitoring, and tuning systems for cost and scale
- eCommerce: Shopify, Saleor, Spree, custom headless builds, complex integrations, and migrations off legacy platforms like Magento
WHAT MY TEAM COVERS
Everything above, at scale, plus the full stack around it:
- Backend beyond Rails: Node.js, PHP (Laravel, Symfony), Python (Django, Flask), REST and GraphQL APIs
- Mobile: native (Swift, Kotlin) and cross-platform (React Native, Flutter), including the hard stuff like offline-first sync, BLE sensor processing, and frame-accurate video
- QA, business analysis, project management, and UI/UX design
THE PROBLEMS I LIKE SOLVING
- Operations platforms: the central system that runs bookings, payments, teams, hardware, and compliance when off-the-shelf tools stop coping. Software modeled on how your business actually works, not the other way around.
- Legacy rescue: inheriting a system nobody wants to touch and making it safe to change again, without a risky rewrite. We've taken an 11-year-old codebase from timeout-or-fail to 3-7 second responses.
- Deep integrations: the ones Zapier can't handle and SaaS avoids. Payments, logistics, identity, hardware, compliance-grade audit trails where failure isn't an option.
- Performance: finding the real bottleneck and fixing it. We've cut infrastructure costs 50% and pulled 95th-percentile response times down to 500ms on live products.
PROOF
- Top Rated Agency on Upwork, 98%+ Job Success Score since 2013, 4.8/5.0 average rating
- $10M+ in project value delivered
- Clients who've stayed 5-10+ years, some since 2014
HOW I WORK
- I think like a technical co-founder, not a contractor. I'll tell you when something is a bad idea before you build it.
- I surface technical debt and scaling bottlenecks before they escalate, not after.
- Clear communication across time zones. We're GMT+7, with strong overlap for AU and workable hours for US/EU.
- Long-term thinking. I build systems that scale, not quick hacks that break six months later.
WAYS TO WORK WITH ME
1. Build a core operations platform: internal tools, SaaS, workflow automation, complex integrations, replacing a stack of fragmented tools with one system
2. A dedicated engineering team: backend, frontend, mobile, and QA as an extension of yours, often for years
3. Product and MVP builds: idea to launch, fast but not fragile
If you want someone who understands the engineering, challenges your assumptions, and can put a real team behind it, let's talk.
Steps for completing your project
After purchasing the project, send requirements so Jack can start the project.
Delivery time starts when Jack receives requirements from you.
Jack works on your project following the steps below.
Revisions may occur after the delivery date.
Deep Dive: System & Business Process Review
Our process begins with a workshop to thoroughly understand your existing system, data, and the business processes it supports. We map out its strengths, weaknesses, and critical functions to ensure a smooth transition.
Risk Assessment & Modernization Strategy
We analyze various modernization approaches (e.g., full rewrite vs. phased migration) and present a strategy that minimizes risk and disruption to your current operations. The goal is a safe and predictable path forward for your business.