Senior software support for existing systems
Stability, audits, and ongoing technical support for production applications.
App Dev Plus helps founders and small teams keep their systems running, secure, and maintainable. We specialise in diagnosing problems, fixing what's already built, and supporting live systems long-term.
Is this you?
- You have a live system in production
- Your original developer is gone or unavailable
- Bugs keep appearing and no one fully understands the codebase
- You need occasional senior input, not a full-time hire
- You want someone who can review and explain your system honestly
What we actually do
Ongoing system support and maintenance
Regular attention to keep your systems healthy and running smoothly.
Bug fixing and production issue investigation
Fast, thorough diagnosis and resolution of problems affecting your users.
Codebase audits and technical reviews
Honest assessments of code quality, architecture, and technical debt.
Project rescue and handover cleanup
Taking over abandoned or troubled projects and getting them back on track.
Architecture and security reviews
In-depth analysis of system design and security posture.
AWS and cloud infrastructure support
Configuration, optimization, and ongoing management of cloud resources.
Advisory support for founders and non-technical teams
Clear guidance on technical decisions without the jargon.
How engagements work
Most engagements start with a short review or support call. From there, we either resolve the issue directly or agree on ongoing support.
- Short-term or ongoing support — your choice
- Hourly or monthly retainer options
- No long-term lock-in
- Work is scoped clearly and transparently
Why App Dev Plus
- 25+ years of professional software development experience
- Background in system architecture, audits, and long-running systems
- Experience supporting production systems under real-world constraints
- Based in Japan, working with international clients
- Clear communication, no jargon, no surprises
About
App Dev Plus is led by Benjamin Smith, a senior software engineer and system architect with over 25 years of experience building, maintaining, and rescuing production systems.
The focus is on long-term systems, taking responsibility, and calm problem-solving — not chasing the latest trends or overcomplicating solutions.
Get in touch
If you need help stabilising or understanding an existing system, get in touch for a short, no-obligation discussion.
Contact App Dev Plus