Application Maintenance & Support

Ongoing technical ownership of the web application your business depends on.

application maintenance services

Someone has to own it. That is what we do.

A live web application is never "done". PHP versions reach end of life, dependencies need security patches, cron jobs silently fail, queues back up, integrations change their APIs, and the database grows until yesterday's fast page is today's timeout. Application maintenance is the discipline of catching these things before your customers do.

Synapse Code provides long-term maintenance and support for existing PHP, Laravel and Symfony applications — SaaS products, booking and travel platforms, e-commerce backends, B2B portals and internal business systems. We work as your standing technical partner: same people, accumulated knowledge of your system, no re-onboarding every time something breaks.

Incidents jump the queue

Stability and incident response take priority over everything else.

We stay for years, not tickets

We take ownership for years, not tickets — our founder's longest client relationship ran for five years.

You see what was done, and why

Clear reporting on what was done, why, and what we recommend next.

scope

what maintenance covers

Production reliability

Incident resolution, monitoring, log analysis, and fixing the recurring failures behind them — including cron jobs and queue workers. We once stabilised production cron jobs that were accumulating and exhausting server memory.

Bug fixes & small improvements

A steady stream of fixes and quality-of-life improvements, so the application keeps getting better instead of slowly rotting.

Security & updates

Dependency updates, security patches, PHP and framework version currency — handled routinely, not in a panic after an advisory.

Database & performance

MySQL/PostgreSQL care, slow-query work and caching with Redis. We took one client's Laravel search page from ~17 seconds to ~1 second.

Integration upkeep

Keeping third-party integrations alive as external APIs evolve — payments, availability, pricing, e-commerce and operational systems.

Infrastructure & deploys

AWS, Docker, deployment pipelines and backups — reviewed, documented and kept healthy as part of the retainer.

the rhythm

what a month looks like

Patched on a schedule, not after an advisory

Updates, security patches and fixes applied on a schedule — not in a panic after an advisory.

Incidents first

When production breaks, it jumps the queue — ahead of every piece of planned work.

Plain language, not ticket jargon

What was done, why, and what we recommend next — in plain language, not ticket jargon. More on How We Work.

by technology

framework-specific maintenance

The day-to-day of maintenance differs by stack. See the dedicated pages for your framework:

Queues, Horizon, scheduler, Eloquent performance, version upgrades.

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Plain PHP and older frameworks, including systems whose original developers are gone.

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When nobody is currently maintaining the system at all.

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FAQs

maintenance questions

Yes — it is one of our core services, and the previous developer does not need to be available. We audit access and code, stabilise anything urgent, then move to ongoing maintenance. See application takeover.

Production incidents are prioritised ahead of all planned work, and we reply within one business day. Specific response commitments are agreed in your maintenance arrangement — see How We Work.

A monthly retainer sized to your system and how fast it changes, agreed after the System Risk Check — so the number is based on evidence, not guesses. Bigger features run as time-and-materials projects alongside the retainer. Details on the pricing page.

Yes. AWS and other hosting, Docker, deployment pipelines, backups, and MySQL/PostgreSQL care are part of the maintenance scope — one accountable partner for code, database and infrastructure.

Not the question you had? Our full FAQ covers how engagements start, scale and end.

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

system risk check

Start with a System Risk Check

Before any retainer, we review your application and send you a written report: current risks, quick wins, and what ongoing maintenance should cover. No obligation to continue.