--- title: "Bug Fixing, QA & Software Maintenance Services | Modern Age Coders" description: "Bug fixing, QA and software maintenance for businesses worldwide. We fix stubborn bugs, add tests, patch security and keep your live systems healthy, even code we did not build. Free consultation." canonical: https://learn.modernagecoders.com/software-maintenance-and-support source: src/pages/software-maintenance-and-support.html --- > Bug fixing, QA and software maintenance for businesses worldwide. We fix stubborn bugs, add tests, patch security and keep your live systems healthy, even code we did not build. Free consultation. [For Business](/for-business)/ Bug Fixing & Maintenance # Fix the bugs, then keep it running. Stubborn defects tracked down, tests added, and a live system kept healthy. We take on the code you have, even if we did not write it, and make it dependable. Discuss your requirement[WhatsApp us](https://wa.me/919123366161?text=Hi%2C%20I%20need%20bug%20fixing%20or%20ongoing%20maintenance)Since 2020Fixing and buildingAny codebaseEven code we did not writeWorldwideRemote delivery ## Good fit if you have - A bug nobody can seem to fix - A live system that keeps breaking - Code with no tests and no docs - No one to keep it running reliably In short Software maintenance and support means keeping working software healthy: fixing bugs, adding tests, patching security, updating dependencies and responding when something breaks. Modern Age Coders takes on your existing codebase, even one we did not build, and keeps it dependable. We deliver worldwide and can work one-off or on a retainer. To start, describe the bug or the system below or message us on WhatsApp at +91 91233 66161. What we do ## From one stubborn bug to full upkeep Whether you need a single defect gone or a team to keep everything running, we take it on. 01 ### Bug fixing We reproduce, diagnose and fix defects properly, including the ones that resist a quick patch. 02 ### Emergency response Production down? We jump in, stabilise the system, and then find the root cause. 03 ### QA & testing Structured testing that catches problems before your users do, not after. 04 ### Automated tests Add a test suite so fixes stay fixed and new changes do not break old features. 05 ### Security & updates Patch vulnerabilities, update dependencies and keep your stack current and safe. 06 ### Maintenance retainers A dependable monthly arrangement for fixes, small features and peace of mind. 07 ### Monitoring & support Alerts and error tracking so issues are caught early, with a team ready to respond. How we work ## A clear path from requirement to results You see progress every step, and you own everything we ship. ### Triage We understand the bug or the system and reproduce the problem so we are fixing the real thing. ### Diagnose We find the actual root cause, not just the symptom, so it does not come back. ### Fix We resolve it cleanly and add a test so the same bug cannot return unnoticed. ### Verify We confirm the fix in a realistic environment before it ships to your users. ### Prevent We harden the weak spots that let the bug happen in the first place. ### Support Optional retainer to keep the system healthy, updated and monitored. Capabilities ## We work in your stack Taking over unfamiliar code is routine for us. We read it, reproduce the problem, and fix it properly. ### Languages JavaScriptTypeScriptPythonJavaPHP ### Testing UnitIntegrationEnd-to-end ### Reliability MonitoringError trackingAlerts ### Security PatchingDependency updatesWho it is for ## Who it is for ### Stuck teams A bug you cannot crack, handed to a fresh pair of experienced eyes. ### Businesses without in-house devs Dependable upkeep for software you rely on but do not maintain yourself. ### Founders left in the lurch Your developer disappeared. We pick up the code and keep it running. ### Companies needing support A team on call for fixes, updates and the occasional emergency. Why Modern Age Coders ## Dependable, even on code we did not write ### Proven since 2020 We have built and taught software since 2020, with more than 10,000 learners across over 25 countries and a 4.9 rating from 547 Google reviews. The team that teaches these tools also ships them. ### You own everything Full source code, documentation and access on handover. No lock-in and no dependence on us. You can take the work to any team, including your own. ### Maintainable by design We write tested, documented code that another developer can pick up. What we build is an asset, not a trap. ### Plain communication Weekly updates in language you can follow, honest timelines and a single point of contact. You always know what is done and what is next. How we engage ## Pick the model that fits Every engagement starts with a free consultation and a written quote. No fixed packages, because the right shape depends on your requirement. Best for a single issue ### One-off fix A specific bug or problem, scoped and fixed for a fixed price, with a test so it stays fixed. - Clear diagnosis first - Fixed price for the fix - Test added to prevent regression Get it fixedBest for peace of mind ### Monthly retainer Reserved time each month for fixes, small features, updates and fast response when something breaks. - Priority bug fixing - Security and dependency updates - Cancel or pause any time Discuss a retainerBest for full ownership ### Dedicated team Hand over ongoing maintenance entirely to a team that treats your system as its own. - End-to-end maintenance - Monitoring and support - Flexible scope Build a team ## Tell us what needs fixing Tell us what you need. We reply within one business day with next steps and a free consultation slot. No obligation. ### Prefer to talk first? Reach us directly. We answer questions before you commit to anything. [WhatsApp+91 91233 66161](https://wa.me/919123366161?text=Hi%2C%20I%20need%20bug%20fixing%20or%20ongoing%20maintenance)[Call+91 91233 66161](tel:+919123366161)[Emailcontact@modernagecoders.com](mailto:contact@modernagecoders.com?subject=Bug%20Fixing%2C%20QA%20and%20Maintenance%20enquiry) Your details go straight to our team and are used only to reply to your enquiry. We never share or sell your information. Questions ## Frequently asked Can you fix a codebase you did not build? Yes. Taking over unfamiliar code is routine for us. We start by reading the code and reproducing the problem, then diagnose and fix it properly, and we can document what we find along the way. Can you help with an emergency right now? Yes. For production-down situations we move quickly to stabilise the system first, then find and fix the root cause so it does not recur. Reach us fastest on WhatsApp at +91 91233 66161. Should I take a one-off fix or a retainer? A one-off fix suits a single, specific problem. A retainer suits software you depend on and want kept healthy, with priority response, updates and small improvements each month. We are happy with either. Will you add tests? Where it helps, yes. Adding a test for a fixed bug keeps it from silently coming back, and a test suite makes all future changes safer. We can build this up over time. How much does it cost? A one-off fix is quoted after we see the problem. A retainer is a predictable monthly amount based on the level of support you need. Either way you get a clear quote before work begins. Related services ## Often needed alongside [Custom Software DevelopmentBespoke platforms and internal tools.View service](/custom-software-development-services)[Scaling & ModernizationGrow software that is straining.View service](/software-scaling-and-modernization)[Web & Web-App DevelopmentFast web apps, portals and SaaS UIs.View service](/web-application-development-services)[AI Development & AutomationAgents, chatbots and automation.View service](/ai-development-services)[SEO ServicesDurable rankings from technical SEO and content.View service](/seo-services)[All business servicesSee everything we do for companies.Back to hub](/for-business) --- *Canonical: https://learn.modernagecoders.com/software-maintenance-and-support*