You will get a plain-English review of your app's code before you spend more money
Rising Talent
Project details
You paid for an app. It sort of works, the developer has gone quiet or moved on, and you have no way of knowing whether you own something solid or a problem that will swallow your next investment. Every developer you ask has an incentive to say it is terrible and offer to rebuild it.
I do not want the rebuild. I co-founded a software company, grew it to £7.5m in revenue and sold it, and I currently run three software products of my own. I have hired, managed and inherited code from dozens of developers, and I have seen exactly what gets sold to non-technical founders.
What you get:
A plain-English report: what is solid, what is broken, what is risky
What each issue means for your business, in time and money
An honest verdict: repair, rebuild, or walk away
A 30-minute call to ask anything
Higher tiers add a prioritised fix roadmap with budget ranges you can hand to any developer, and help writing the job spec and interviewing your next one.
If the work you paid for is good, the report will say so. You are buying the truth, not a sales document.
I do not want the rebuild. I co-founded a software company, grew it to £7.5m in revenue and sold it, and I currently run three software products of my own. I have hired, managed and inherited code from dozens of developers, and I have seen exactly what gets sold to non-technical founders.
What you get:
A plain-English report: what is solid, what is broken, what is risky
What each issue means for your business, in time and money
An honest verdict: repair, rebuild, or walk away
A 30-minute call to ask anything
Higher tiers add a prioritised fix roadmap with budget ranges you can hand to any developer, and help writing the job spec and interviewing your next one.
If the work you paid for is good, the report will say so. You are buying the truth, not a sales document.
Programming Languages
HTML & CSS, JavaScript, PythonCoding Expertise
Performance Optimization, Security, DesignWhat's included
| Service Tiers |
Starter
$295
|
Standard
$595
|
Advanced
$1,250
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 10 days |
Number of Revisions | 1 | 1 | 2 |
Number of Pages | 3 | 5 | 10 |
Design Customization | |||
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Frequently asked questions
About Justin
Senior SaaS Developer - Next.js, TypeScript, Supabase, Stripe, AI
Burton Joyce, United Kingdom - 9:00 am local time
Most recently I built SyncStudio from zero to production — product strategy, full-stack development (Next.js, Supabase, Stripe, Inngest), and a 64-page SEO content architecture driving organic acquisition. Before that, 10 years as COO/CTO of AppInstitute, a globally deployed SaaS platform.
I take on work across the full stack:
Product — PRDs, roadmaps, pricing models, feature prioritisation. Commercially minded, not just technically.
Development — Next.js, React, Node.js, Supabase, API integrations, AI workflows. Production-grade, not prototype-grade.
I build SaaS products end-to-end and fix the ones that are quietly costing you money. Three live products of my own — built from zero on Next.js, TypeScript, Supabase, Stripe and Inngest, with multi-model AI pipelines running unattended daily. Before that, ten years as CTO/COO of AppInstitute, a SaaS platform I co-founded, scaled to £7.5m in revenue and exited.
Building from scratch: I take products from idea to production — PRD, architecture, full-stack build, billing, AI workflows, launch. Most recently SyncStudio, zero to production end-to-end, including a 64-page SEO content architecture driving organic acquisition. Because I have built for myself with my own money at stake, you get the commercial decisions alongside the code: what to build, what to skip, what it should cost.
Fixing what exists: Stripe billing that double-charges or drifts out of sync. Supabase databases where one missing RLS policy exposes customer data while everything looks fine. AI features that demo brilliantly and fail in production. Fixed-price audits in my project catalog are the fastest way to start here — plain-English reports ranked by business risk, actionable by any developer, not just me.
Either way, everything is production-grade, not prototype-grade: idempotent payment handling, tested security policies, AI pipelines with retries, fallbacks and evals. Read-only access is enough to start on audits, and I sign NDAs without fuss.
Message me with what you are building, or what is going wrong.
Steps for completing your project
After purchasing the project, send requirements so Justin can start the project.
Delivery time starts when Justin receives requirements from you.
Justin works on your project following the steps below.
Revisions may occur after the delivery date.
Hear the story and get access
You tell me what was built, by whom, and what decision you are facing. I help you share the code if you have never used GitHub — five minutes, no technical knowledge needed.
Review the code and the running product
I read the codebase the way a buyer's engineer would: structure, security basics, shortcuts taken, anything half-finished or copied in, and whether what you were told matches what was built.