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I need an experienced mobile engineer to step in, trace, and fix the problems that have crept into my Capacitor-based iOS and Android app. Over the last five months we have suffered four serious data-loading failures. Alongside that, a notification process has gone rogue, hitting MongoDB nonstop and pushing our Google Cloud spend far beyond forecast. We have not spotted any clear usage pattern that triggers the outages, and our own quick analysis of the notification storm still leaves the root cause unknown. Your job is to run a full technical investigation, eliminate the defects, and get both stores running on a clean, optimized build. Deliverables • Root-cause report covering the data-loading incidents and the excessive notification traffic • Remediated code with performance and cost improvements (MongoDB queries, GCP services, Capacitor plugins as needed) • Automated tests confirming the fixes plus load-test results that show stability under peak usage • Fresh iOS and Android builds, signed and ready for submission, along with release notes • Short post-deployment monitoring plan so we can track that the fixes hold in production Acceptance criteria: the app must survive sustained peak load without data-loading failures, notification traffic must fall to an expected baseline, and initial GCP cost metrics should confirm the reduction. If you are comfortable profiling Capacitor apps, tuning MongoDB, and squeezing every dollar out of GCP, I’m ready to work with you right away.
Project ID: 40505186
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213 freelancers are bidding on average $467 CAD for this job

⭐️⭐️⭐️ Capacitor App Investigation, Performance Optimization & Stability Fixes ⭐️⭐️⭐️ Hello, I reviewed your requirements and understand that you need an experienced developer to perform a deep technical investigation of your Capacitor-based iOS and Android application, identify the root causes behind recurring data-loading failures and excessive notification traffic, optimize MongoDB and GCP usage, and deliver stable production-ready builds. Features: • Full application audit • Root cause analysis & reporting • Data-loading issue investigation • Notification system debugging • MongoDB performance optimization • Query analysis & tuning • Google Cloud cost optimization • API performance review • Capacitor plugin audit • Background process analysis • Memory & network profiling • Error logging & monitoring improvements • Automated testing setup • Load & stress testing • Performance benchmarking • Stability validation under peak traffic • iOS & Android build optimization Let’s chat… Thanks
$500 CAD in 7 days
9.4
9.4

Hi — Elias here from Miami. I understand you're facing stability issues with your mobile app. Ensuring a smooth user experience is crucial for retention and overall success. The real challenge here usually lies in identifying the root causes of these stability problems. It might involve understanding how the app manages state and handles various integrations. Often, overlooked issues like memory leaks or improper error handling can lead to crashes or performance degradation. My approach would involve a thorough audit of the current architecture, focusing on areas that impact reliability and maintainability. I would systematically trace the issues, prioritize fixes based on impact, and implement best practices to future-proof the app. Ensuring the app is resilient while keeping it scalable for future features is key. I have experience optimizing similar mobile applications, improving both stability and performance for user-facing features. A few questions to better understand the scope: Q1 – What specific stability issues are you currently encountering? Q2 – Are there particular devices or operating systems where problems are more pronounced? Q3 – How is user feedback being collected and prioritized for fixes? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.
$600 CAD in 3 days
8.2
8.2

HELLO!! I read your requirements carefully and understood very well about the project scope and start working accordingly in stages. I am having more than 10+ years of experience in mobile engineering, Capacitor/Ionic hybrid apps, backend debugging, and cloud performance optimization, and I can investigate and fix the data-loading failures and notification overload issues in your iOS and Android applications. I will approach this project by first performing a full root-cause analysis across the Capacitor app, backend services, MongoDB queries, and GCP infrastructure to identify the exact trigger of the failures and notification loops. After that, I will fix the critical bugs affecting data loading, optimize database queries and indexing in MongoDB, and stop unnecessary notification triggers at source level. I will also review Capacitor plugins and background processes to ensure no redundant calls are causing system overload. Once fixes are applied, I will run load testing and automated test suites to validate stability under peak traffic conditions, followed by generating production-ready iOS and Android builds I eagerly await your positive response. Thanks
$2,350 CAD in 7 days
8.3
8.3

Hi, We can help identify and fix the issues affecting your Capacitor iOS and Android app. From the recurring data-loading failures to the excessive notification traffic driving up MongoDB and GCP costs, we'll perform a thorough investigation to find the root cause, implement the necessary fixes, optimize performance, and deliver stable production-ready builds. Could you share which services are handling notifications and whether any monitoring logs are currently available? Looking forward to your response. Regards, Helena
$500 CAD in 7 days
7.9
7.9

Hi, I have 9+ years of mobile/backend development experience and can help investigate and fix the Capacitor app, MongoDB, and Google Cloud issues from the root cause, not just patch symptoms. This looks like a production debugging and optimization task: data-loading failures, runaway notification jobs, excessive MongoDB traffic, and GCP cost spikes. My approach would be to first review logs, notification triggers, backend jobs, MongoDB query patterns, Capacitor plugin behavior, and recent code changes to identify why the failures happen and why the notification process is looping or over-firing. I have experience with hybrid mobile apps, backend APIs, database optimization, push notification flows, cloud cost reduction, crash/debug logs, and production release builds. After identifying the root cause, I can apply the fixes, reduce unnecessary database calls, add safeguards/tests around notification logic, prepare clean iOS/Android builds, and provide a short report with monitoring recommendations. Thank you.
$250 CAD in 5 days
7.3
7.3

Hi, I can step in and treat this as a production stability investigation, not just a quick bug fix. I’ll trace the data-loading failures, audit the notification workflow, review MongoDB query patterns, check GCP usage drivers, and isolate the root cause before changing code. I have experience with mobile apps, backend debugging, database optimization, cloud cost control, builds, testing, and release support. I’ll deliver fixes, test evidence, signed builds, release notes, and a monitoring plan. Best regards, Zeeshan Ali
$300 CAD in 8 days
7.1
7.1

Hi, We’ve recently optimized a Capacitor app that faced similar issues with excessive notifications and data loading failures. We identified the root cause as a misconfigured third-party service that sent multiple notifications instead of one. We also improved the app’s performance and reduced GCP costs by 30% by optimizing MongoDB queries and server configurations. With 15 years of experience, I’ve worked extensively with both Ionic and Capacitor, leading multiple projects as a senior developer. I’m well-versed in backend technologies like Node.js and PHP, and I’ve developed several production-level web apps using Vue.js and Nuxt.js. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit. I usually respond within 10 minutes. I’m eager to learn more about your exciting project. Best regards, Adil
$550 CAD in 7 days
6.9
6.9

Hi I can step in to investigate and fix the Capacitor iOS/Android data-loading failures, notification storm, MongoDB pressure, and unexpected Google Cloud cost increase. The main technical problem is that the issue may not be inside the mobile app only, because repeated loading failures and nonstop notification traffic usually involve a mix of client logic, backend jobs, database queries, push notification triggers, and cloud service configuration. My approach would be to trace the full flow from Capacitor plugins and API calls through backend services, MongoDB queries, notification workers, GCP logs, and production metrics to identify the real root cause. I can optimize MongoDB indexes and query patterns, review notification retry logic, fix duplicate triggers, improve API error handling, and reduce unnecessary cloud usage. I can also add automated tests, load testing, logging, and monitoring so the fixes are verified under peak traffic instead of only checked manually. After remediation, I can prepare fresh signed iOS and Android builds with release notes and a clear post-deployment monitoring plan. The goal is to deliver a stable app, controlled notification traffic, lower GCP spend, and a technical report your team can rely on. Thanks, Hercules
$500 CAD in 7 days
6.8
6.8

This looks like a great fit, I will trace the data-loading failures, isolate the runaway notification process, and deliver a remediated build for both iOS and Android — along with a root-cause report, automated tests, and a post-deployment monitoring plan. For the notification storm, I will start by profiling the MongoDB query patterns and connection pooling behavior — rogue loops often stem from uncapped retry logic or missing TTL indexes on notification documents, which silently compound under load and spike GCP egress costs. Questions: 1) Which Capacitor plugins handle notifications — Firebase Cloud Messaging, or a custom setup? 2) Do you have observability in place (GCP Cloud Logging, MongoDB Atlas metrics), or will I need to instrument from scratch? Looking forward to discussing further. Best regards, Kamran
$275 CAD in 10 days
7.4
7.4

Hi there, I have read your project requirement. You need an experienced mobile engineer to investigate and resolve recurring data-loading failures in your Capacitor-based iOS and Android application, identify the root cause of excessive notification traffic impacting MongoDB and Google Cloud costs, optimize the overall system performance, and deliver stable production-ready builds with proper testing and monitoring. With strong experience in Capacitor, iOS, Android, MongoDB, and Google Cloud Platform, we can perform a complete technical audit, trace the underlying issues, optimize database queries and notification workflows, implement automated testing, conduct load testing, and deliver fully validated app releases for both platforms. A few questions before we proceed: =============================== Which Capacitor version and framework (Angular, React, Vue, etc.) is the app currently using? Do you have crash logs, Firebase Analytics, or monitoring tools already configured for the application? Which notification service is being used (FCM, OneSignal, custom implementation, etc.)? Can you provide access to the MongoDB and GCP monitoring dashboards to analyze the abnormal traffic patterns? Best Regards, Srashtasoft Team
$500 CAD in 7 days
7.1
7.1

Hi, I can investigate your Capacitor iOS/Android app, identify the root causes behind repeated data-loading failures and runaway notification traffic, then optimize MongoDB/GCP usage for stable production performance. I have experience debugging hybrid mobile apps, profiling Capacitor plugins, fixing API/data-sync issues, tuning MongoDB queries, reducing cloud costs, writing regression tests, and preparing signed store-ready builds. I will deliver a clear root-cause report, patched code, automated/load-test evidence, release notes, fresh iOS/Android builds, and a short monitoring plan to confirm stability after deployment. Q1: Which backend framework powers the app APIs? Q2: Are notifications handled through FCM, Cloud Functions, or a custom worker? Q3: Do you already have GCP/MongoDB logs for the outage periods? Best regards.
$500 CAD in 7 days
6.6
6.6

I see you're looking for someone to trace and fix stability issues in your Capacitor app. With around 10 years of experience in mobile app development, I understand the importance of a smooth user experience, especially on both iOS and Android platforms. Your goal to enhance app stability is crucial for user retention and satisfaction, and I’m here to help you achieve that. I have worked on several projects that involved troubleshooting and optimizing mobile applications. Some similar things I've built include a regional booking platform for a tutoring company, an internal CRM for a property agency, and a React Native field-reporting app. Let's discuss how we can make your app more reliable. Could you please clarify the following questions to help me better understand the project? Q1: What specific stability issues have you identified in the app? Q2: Are there particular devices or operating systems where these issues are more pronounced? Q3: Do you have existing documentation or logs that could assist in diagnosing the problems?
$500 CAD in 4 days
6.6
6.6

Hello There!!! ★★★★ ( Deep technical debugging & performance stabilization for Capacitor iOS/Android app with MongoDB & GCP optimization ) ★★★★ Project understanding: I understand you need an experienced mobile engineer to investigate serious instability in your Capacitor-based iOS and Android apps, fix recurring data-loading failures, and resolve uncontrolled notification traffic that is increasing MongoDB load and Google Cloud costs. ⚜ Capacitor app debugging & optimization ⚜ Root-cause analysis of production failures ⚜ MongoDB query & performance tuning ⚜ Google Cloud cost & usage optimization ⚜ Notification system stabilization ⚜ Automated testing & load testing ⚜ iOS & Android build delivery I have experience working with hybrid mobile apps using Capacitor/Ionic, backend debugging with Node.js systems, and performance optimization across MongoDB and cloud services. I focus strongly on identifying root causes rather than just patch fixes. My approach will be to reproduce the issues, trace notification workflows, analyze database queries and cloud logs, and isolate the failure points. Then I will fix code, optimize performance, and validate stability under load with proper testing. I’d be glad to start immediately and help stabilize your production system. Warm Regards, Farhin B.
$256 CAD in 10 days
6.6
6.6

Hi I can step in to investigate and stabilize your Capacitor iOS and Android app, fix the recurring data-loading failures, stop the excessive notification process, and deliver clean builds ready for both stores. My approach would start with a full technical audit of the Capacitor app, API calls, notification flow, MongoDB queries, Google Cloud logs, background jobs, plugin behavior, and failure timestamps from the last five months. I would trace whether the outages are caused by API timeouts, bad state handling, unindexed MongoDB queries, runaway scheduled jobs, duplicate notification triggers, retry loops, cloud function behavior, or Capacitor plugin issues. Once the root cause is confirmed, I will remediate the code, optimize database access, reduce unnecessary GCP usage, add safeguards around notification execution, and validate the fixes with automated tests and load testing. I can also review cloud cost drivers and recommend practical changes such as query indexes, rate limits, queue controls, retry limits, logging improvements, and monitoring alerts. Deliverables will include a root-cause report, fixed and optimized code, test results, load-test summary, signed iOS and Android builds, release notes, and a short post-deployment monitoring plan. My goal is to restore stability, reduce cloud costs, and leave you with a build that can safely handle peak usage. Best, Justin
$500 CAD in 7 days
6.1
6.1

Hi there, I can step in and run a full stability investigation on your Capacitor iOS and Android app, focusing on the data loading failures, notification storm, MongoDB load, and GCP cost spikes. I have experience with Capacitor apps, mobile debugging, MongoDB query tuning, Google Cloud services, push notification workflows, performance profiling, automated testing, and production release preparation. My approach would be to review app logs, backend jobs, notification triggers, database queries, indexes, retry logic, plugin behavior, and cloud metrics to isolate the exact root cause. I will then apply code and configuration fixes, reduce unnecessary notification traffic, optimize MongoDB usage, add tests, perform load validation, and prepare signed iOS and Android builds with release notes. Delivery will include a root cause report, remediated code, test results, cost reduction notes, and a post deployment monitoring plan. Kind regards,
$500 CAD in 7 days
5.8
5.8

I’d be glad to step in and help stabilize your Capacitor app. I’ve worked on mobile apps where intermittent data-loading failures, runaway background processes, and cloud cost spikes needed careful tracing across the app, backend, and infrastructure. My approach would be to reproduce the failures, profile the iOS/Android builds, inspect the notification flow, and identify where MongoDB and GCP are being overused. From there, I’d fix the root causes, optimize queries and plugin behavior, add automated tests, and validate the app under sustained load before delivering signed builds and clear release notes. Do you already have logging, crash reports, or monitoring data from the last five months that I can review first? Would you prefer the post-deployment monitoring plan to focus on app-level metrics, GCP spend alerts, or both? I’d be happy to discuss the current setup and get started right away.
$400 CAD in 7 days
5.7
5.7

Hello, I have 4 years of experience in Mobile App Development, Android App Development, iOS Development, MongoDB, and NoSQL Couch & Mongo. I have a strong background in troubleshooting and optimizing apps for stability and performance. I understand your requirement for fixing the stability issues in your Capacitor-based iOS and Android app. I will conduct a thorough technical investigation to identify and resolve the data-loading failures and excessive notification traffic issues. I will provide a detailed root-cause report, remediated code, automated tests, fresh builds, and a monitoring plan for post-deployment. I have read the requirements and am confident in my ability to deliver a clean, optimized build for your app. Let's connect in chat to discuss further. Best regards, Taimoor from Pixels Soft
$500 CAD in 7 days
5.4
5.4

Hi, I have checked your project and understand you need a deep stability fix for a Capacitor iOS/Android app with recurring data-loading failures, runaway notification processes, and high MongoDB + GCP costs caused by uncontrolled backend behavior. I have experience debugging Capacitor apps, MongoDB performance issues, API bottlenecks, background job loops, and GCP cost spikes, including profiling async notification systems and optimizing database query patterns under load. I can trace the root cause, fix the notification loop, optimize database and cloud usage, add stability tests, and deliver clean iOS/Android builds with a post-deployment monitoring plan. Best regards, Juan
$500 CAD in 3 days
5.1
5.1

I’ve dealt with similar issues in Capacitor apps where hidden data race conditions caused sporadic load failures, and misconfigured notification handlers unexpectedly flooded backend services. To start, I’ll instrument the app to gather detailed logs during data loading and notification events, focusing on concurrency issues and unexpected retry loops. For MongoDB, I plan to analyze query patterns and indexes to cut costs and improve performance, while examining the notification logic to identify and block the rogue process. Have you documented or captured any logs about when these notification storms begin? That could narrow the root cause. Once the problem areas are identified, I’ll fix the code and write automated tests simulating peak loads to ensure stability. I’ll also prepare signed builds for both iOS and Android and a monitoring plan that alerts you if errors or abnormal traffic reappear. This kind of deep troubleshooting and optimization usually takes a few days, after which you’ll have a clean build running smoothly under load, plus clear cost savings on your GCP bill. Ready to dive in and start debugging as soon as you’re set.
$750 CAD in 7 days
5.3
5.3

As an experienced web and app developer with a particular focus on Android and mobile apps, I bring to the table a diverse skill set that aligns perfectly with your project requirements. Not only am I proficient in HTML, CSS, JavaScript, PHP, and React but also an expert in Capacitor and mobile frameworks such as Android Studio. My proficiency extends to your other app components, MongoDB and GCP optimization for cost-effectiveness. This also includes fine-tuning Capacitor plugins as needed. Drawing from my past experiences solving similar complex issues facing data-loading failures, rogue process affecting performance indices like in your case; I have honed my problem-solving approach to trace the source of problems like yours. Deliverables like root-cause reports on past failures along with the necessary fixes alongside automated tests to confirm them lie at the heart of my work ethic. Moreover, I understand all these repairs amount to nothing without resilience in production—thus my prioritizing short post-deployment monitoring plan. If reliability, technical precision, and going above the call of duty for client satisfaction are crucial aspects of your search for a freelancer partner, then look no further than me—Aliza Shaikh. Let’s bring stability back to your Capacitor-based iOS and Android app!
$250 CAD in 2 days
5.3
5.3

Laval, Canada
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