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Fiverr Pro
English
$
USD
I will stabilize and modernize your legacy PHP laravel application
Oleksandr
About this gig
Do you have a legacy PHP or Laravel application that needs stabilization, a performance fix, a new feature, or careful modernization?
I work with existing business systems where understanding current behavior is as important as writing new code.
I can help with:
Bug investigation and root-cause analysis
Performance diagnostics and optimization
Business logic and backend extensions
Database queries and data workflows
REST APIs and third-party integrations
Redis, queues, background jobs, and Elasticsearch
Incremental legacy-code modernization
What you receive:
A scoped review of the affected workflow
Clear findings and an agreed implementation plan
Maintainable code for the selected change
Relevant tests or verification steps
Concise handover documentation
I focus on bounded, testable improvements. I will not recommend a full rewrite unless the technical evidence and business value support it.
Please contact me before ordering Standard or Premium. Share your business goal, expected and actual behavior, runtime versions, and sanitized logs.
Production access is not required for the initial review.
Get to know Oleksandr
Oleksandr
Software Architect and Senior Backend Engineer
- FromUkraine
- Member sinceSep 2026
- Avg. response time1 hour
Languages
English
I am a Software Architect and Senior Backend Engineer focused on existing business systems, backend architecture, integrations, and incremental modernization.
I work with PHP/Laravel and Python/FastAPI, databases, Redis, queues, Elasticsearch, Docker, and Linux application environments.
My experience includes legacy stabilization, performance diagnostics, REST APIs, business workflows, source-backed AI search and RAG, server monitoring, and application operations.
I focus on bounded, maintainable changes with clear verification and practical handover.
FAQ
Do you only work with Laravel?
Laravel and PHP are the main fit for this Gig. Related frontend/API boundaries can include Angular, React.js, Nuxt.js or Vue.js when needed to complete the agreed backend workflow.
Will you rewrite my application?
Not by default. I first identify the smallest responsible change. A rewrite is considered only when evidence, risk and business value support it.
What is one bounded improvement?
One defined workflow, module, integration or reproducible issue with explicit acceptance criteria. Unrelated changes require a custom offer.
Can you work in production?
Initial investigation should use repository, development or staging access. Production work requires agreed backup, access and rollback steps.
Can you guarantee a performance percentage?
No. Performance work starts with measurements and a confirmed bottleneck; targets are agreed only after diagnosis.
