Case Studies

real client work

Proof, not promises

Real engagements on live PHP, Laravel and Symfony applications — taken over, stabilised, modernised and extended without risky rewrites. The clients are anonymised because their systems are their business, but every number here comes from a production system we were responsible for.

  • all
  • maintenance & support
  • modernisation & upgrades
  • product development
  • rescue & incident response

Maintenance & Support Laravel maintenance for two established travel websites

How we took ongoing technical ownership of two live Laravel travel websites — cutting a key search page from about 17 seconds to about 1 second along the way.

Maintenance & Support Stabilising an inherited Laravel platform nobody dared to restart

A half-finished Typo3-to-Laravel migration, a 15 GB repository and a production server nobody dared to reboot. Audit first — then backups, security fixes, Docker and ~500 tests.

Modernisation & Upgrades MySQL upgrade that cut about $10k a year in AWS costs

An outdated MySQL 5.7 database was quietly adding about $900 a month in AWS Extended Support fees. We planned and ran a safe upgrade to 8.0 around a live legacy application.

Modernisation & Upgrades SAP–Shopify sync rebuilt from legacy PHP to Symfony

Six storefronts depended on a fragile black-box sync with SAP. We took it over and replaced it step by step with a Symfony middleware — without stopping the business.

Maintenance & Support Culinary events platform: years of maintenance and a UK launch

We keep a Dutch culinary events platform stable through high-traffic ticket sales — and refactored its legacy Symfony core so the same system could launch in the UK.

Maintenance & Support 300,000-SKU product catalogue: instant search and stable syncs

A custom PHP product information system struggled under 300k+ SKUs: slow searches and fragile Shopify and Shopware syncs. We modernised it in place — no rewrite.

Modernisation & Upgrades REST API on a legacy Symfony app for a headless React frontend

Instead of rewriting a Symfony 3.4 events platform, we exposed its existing business logic through 20+ REST endpoints — unblocking a full React migration at a fraction of rewrite cost.

Product Development From no-code prototype to a production SaaS platform

A validated MVP built on Make, Bubble and Replit had hit its ceiling. We re-platformed it into a multi-tenant Symfony + React SaaS with a grounded AI content engine.

Product Development An AI legal-training MVP, live in about two weeks

Law students practise argumentation against AI judge personas grounded in real legal documents. We designed and shipped the production-ready MVP in roughly two weeks.

Maintenance & Support Keeping a Symfony 1 / PHP 5.4 website safely in business

A property website on Symfony 1 and PHP 5.4 still earned its keep. We maintain it carefully — SEO updates, feeds, cache issues — and brought production changes back under Git control.

Rescue & Incident Response The outage that wasn’t the application: a Route 53 DNS story

Internal business systems stopped resolving even though the servers were healthy. We traced the outage layer by layer to incomplete Route 53 delegation and restored access.

Maintenance & Support Technical SEO cleanup for two Laravel travel websites

After a difficult migration history, two travel websites had canonical, sitemap, redirect and indexation problems. We cleaned up the technical foundation as part of ongoing maintenance.

Product Development A real-time crypto signals SaaS on Symfony and ClickHouse

Tick-by-tick market data from major exchanges, analysed and delivered as trading signals in under half a second — through a web dashboard and a Telegram bot.

Product Development Monetising AI chatbots in WordPress — with no user accounts

Five AI personas, a freemium paywall and Nordic Swish payments — built as a custom WordPress plugin that charges users without ever asking them to register.

testimonials

customer testimonials

We engaged them to modernize a legacy internal application, and within months, they delivered a solution that exceeded our requirements on every front. What stood out most was their ability to balance speed with sustainability—they delivered results on a tight timeline without cutting corners. Synapse Code is simply the best external partner we've worked with. We're already mapping out our next development phase.

John Hryshchuk

CEO at Advanced Ultrasound Systems

Valentyn and his team helped us build a flexible backend system to manage training sessions, client materials, and participant feedback. What stood out was their ability to translate our needs into a clean, functional platform. Their calm, clear communication and dependable delivery made the whole process feel effortless. And, Valentyn himself, is a thoughtful leader with incredible skills. 10 out of 10 would recommend!

Douglas Brewer

founder

We worked with Valentyn’s team on integrating our AI automation platform with several third-party services via custom APIs. They quickly understood the technical requirements and delivered a clean, well-documented solution that worked out of the box. Their work helped us reduce onboarding time for new clients and made our system much easier to scale. Great communication, fast iterations, and no surprises - highly recommended!

Andrii Nasadchuk

CEO at Aimeice Tech

I worked with Valentyn on a custom web application and it was a great experience. He quickly understood our needs, was deeply involved in the project, and delivered a clear and well-structured solution. Everything went smoothly from start to finish. Highly recommended.

Pilar Bordonado

Head of Commercial Operations in Calidad Pascual

We had the pleasure of working with Valentyn Morozov during the implementation of our Electronic Case Report Form (E-CRF) system. From the initial E-CRF setup to troubleshooting technical issues and implementing changes as our requirements evolved, he was always responsive, knowledgeable, and focused on finding the right solution. I highly recommend Valentyn to anyone looking for a knowledgeable, reliable, and committed IT professional.

Kakhaber Zaalishvili

Country Manager Ukraine at Audubon Bioscience

Working with Valentyn has been a game-changer for us at AUS. We brought him and his team in to transition from our legacy internal app to a new platform, and they exceeded our expectations on every front—delivering in just a few months. Valentyn brings a rare combination of deep technical expertise and strong business acumen. His solutions are smart, practical, and built to last, with a clear focus on quality and sustainability.

Victoria Kurashkina

Marketing at Advanced Ultrasound Systems

I've worked with Valentyn and the Synapse Code team on transforming an early low-code prototype into a production-ready, multi-tenant SaaS platform. They took ownership of the technical complexity across the backend, frontend, infrastructure, AI workflows, and third-party integrations, replacing a fragile setup with a reliable Symfony, React, and AWS foundation. What I particularly value is that Valentyn approaches the work as a long-term technical partner, not simply as someone completing individual tickets.

Eduardo Cifre Sanchez

Founder at Ranking Superior

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