Hire the Best Firebird Specialists

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Moulin C.

Surat, India

$20/hr
5.0
1 jobs

Looking for a Flutter developer who can build a fast, scalable, and production-ready mobile application? I help startups, entrepreneurs, and businesses transform ideas into high-quality Flutter apps for Android and iOS. With 4.5+ years of experience in mobile development, I build clean, maintainable, and user-friendly applications that are ready for production. My expertise includes: ✅ Flutter & Dart ✅ Firebase (Authentication, Firestore, FCM, Analytics) ✅ REST API Integration ✅ Payment Gateway Integration ✅ Google Maps & Location Services ✅ Push Notifications ✅ SQLite & Local Storage ✅ State Management (Provider, Riverpod, Bloc) ✅ Clean Architecture & MVVM ✅ App Performance Optimization ✅ Google Play & App Store Deployment I have successfully delivered multiple production applications across industries including eCommerce, Healthcare, CRM, Finance, and Business Management. I focus on writing scalable code, maintaining clear communication, and delivering projects on time. Whether you need a brand-new Flutter application, feature development, bug fixing, API integration, or long-term maintenance, I'm ready to help. Let's build something great together.

  • Flutter
  • Dart
  • Push Notifications
  • Clean Architecture
  • CI/CD
  • Firebase Cloud Firestore
  • Firebase
  • Kotlin
  • Android
  • Java
  • Firebase Realtime Database
  • Android Studio
  • Android App Development
  • Android SDK
  • Payment Gateway Integration
  • Retrofit
  • Room
  • REST API
  • Git
  • HTML
Mushaid Hussain S.

Mansehra, Pakistan

$20/hr
5.0
1 jobs

🚀 Flutter Developer | Mobile Apps | Firebase | REST APIs Hi! I'm Mushaid Hussain Shah, a Flutter Developer focused on building modern, responsive, and reliable mobile applications. I specialize in developing Flutter applications from scratch as well as improving and maintaining existing projects. I can handle everything from UI implementation and state management to API integration, Firebase services, authentication, databases, and complete application workflows. 💻 What I Can Help With 📱 Flutter Android & cross-platform apps 🎨 Responsive & custom UI development 🔥 Firebase Authentication, Firestore & Storage 🌐 REST API integration 🔐 Authentication & role-based access 🔄 Provider, ChangeNotifier & BLoC 🗄️ SQLite & local data storage 📝 Forms, validation & complex workflows 📄 PDF generation & document management 🛠️ Bug fixing & performance improvements ⚙️ Admin panels & management systems 🚀 New feature development I focus on writing clean, maintainable code and understanding the complete requirements of a project rather than simply building individual screens. I also have professional experience in Unity and C# development, giving me a strong foundation in programming, problem-solving, debugging, and software development. If you need a reliable Flutter developer for a new application, an existing project, API/Firebase integration, UI implementation, or bug fixing, let's discuss your project.

  • Unity
  • Flutter
  • Dart
  • Git
  • API Integration
  • API Testing
  • Firebase
  • Firebase Cloud Firestore
  • Firebase Realtime Database
  • Mobile App Development
  • Game Development
  • Mobile Advertising
Safdar A.

Tandlianwala, Pakistan

$25/hr
4.7
17 jobs

⭐ Senior Flutter Developer | 6+ Years | 20+ Apps Live on App Store & Google Play I’m a Senior Flutter Developer with 6+ years of experience building and launching mobile applications for iOS and Android. I’ve worked on projects across e-commerce, healthcare, fintech, ride-hailing, wellness, fitness, and AI-powered applications. I also specialize in AI-assisted Flutter development, using modern AI tools to make development faster and more efficient while maintaining clean, reliable, and maintainable code. I have experience integrating AI and LLM APIs to build features such as AI assistants, chat experiences, personalized recommendations, and intelligent app workflows. Here’s what I can help you with: • Flutter and Dart development using BLoC, Riverpod, GetX, or Provider • AI and LLM API integration, including OpenAI-based features • REST APIs, Firebase, and third-party integrations • Real-time chat, video/voice calling, WebSockets, and live tracking • Payments and subscriptions using Stripe, RevenueCat, Apple Pay, Google Pay, and IAP • Firebase Auth, Firestore, FCM, Crashlytics, and Cloud Functions • Google Maps, GPS, navigation, and location-based features • CI/CD using GitHub Actions, Codemagic, and Fastlane • App Store and Google Play deployment and release management Some of my recent projects include: • PlayFit – Hábitos de Ejercicio, a fitness app with background activity tracking, device sensors, daily goals, streaks, reminders, and personalized features • Wellness platform with live meditation sessions using Zoom SDK and CMS-driven content • Ride-hailing driver app with real-time trip management, navigation, and fare calculation • Ferry booking platform with real-time seat availability and secure payments • Subscription meditation app with RevenueCat subscriptions and a custom video player I’ve successfully shipped 20+ apps to the App Store and Google Play, and I understand the complete process from development to production. I communicate clearly, provide realistic timelines, and focus on building code that is easy to maintain and scale. If you have an existing Flutter project or a new app idea, send me a message. I’d be happy to discuss it and suggest the best technical approach.

  • Dart
  • Flutter
  • Firebase
  • API Integration
  • Firebase Cloud Firestore
  • iOS Development
  • Mobile App Development
  • Android App Development
  • RESTful API
  • Firebase Realtime Database
  • REST API
  • ChatGPT API Integration
  • Claude
Zubair A.

Karachi, Pakistan

$30/hr
4.9
17 jobs

🚀 Greetings! I'm Zubair Soomro, your dedicated Senior Android Developer! 🚀 Are you seeking a seasoned professional to craft outstanding Android applications? Look no further—I specialise in bringing your app visions to life, ensuring they're not only functional but also delightful for users. 📱 About Me: With over 7 years of hands-on experience, I'm Zubair Soomro, a passionate Senior Android Developer. My expertise lies in designing and developing sleek, user-friendly, and high-performance Android apps that cater to both business needs and user expectations. 🔑 Key Strengths: End-to-End Development: I manage the complete app lifecycle, from concept to deployment, guaranteeing a seamless process and exceptional results. User-Centric UI/UX: Crafting captivating interfaces that resonate with users, I'm dedicated to creating immersive experiences that drive engagement. Performance Enthusiast: My commitment to optimal code and resource management ensures snappy apps even on less powerful devices. API Integration: Seamlessly connecting apps to APIs and third-party services, I enable comprehensive functionality and feature-rich experiences. Code Craftsmanship: A strong advocate for clean, organised code, I prioritise documentation, testing, and version control to maintain excellence. Problem-Solving Pro: Challenges are my playground—I love diving into complexities and devising innovative solutions. 🛠️ Tech Stack: Languages: Java, Kotlin, Dart Android SDK, Android Studio Retrofit, OkHttp, Gson SQLite, Room Material Design Firebase (Authentication, Cloud Messaging, Analytics) Git, GitLab, GitHub 🌐 Get in Touch: Excited to turn your app ideas into reality? Let's connect and discuss how we can collaborate to create Android apps that shine. Feel free to reach out for a chat about your project or goals. Looking forward to partnering with you and delivering remarkable Android experiences!

  • Native App Development
  • Dart
  • Flutter
  • Kotlin
  • Smartphone
  • Firebase
  • User Authentication
  • Java
  • Firebase Cloud Firestore
  • Mobile App Development
  • Firebase Realtime Database
  • Android App Development
  • Python Script
  • SQL
Cuong T.

Ho Chi Minh City, Vietnam

$27/hr
4.9
30 jobs

Are you looking for a seasoned expert in cross-platform mobile app development using Flutter? Look no further! 🔧 My Expertise: I excel in crafting high-quality cross-platform mobile apps using Flutter. I am well-versed in various design patterns, including BLoC, Provider, and GetX, and I'm fluent in programming languages such as Dart, Swift, Java, Objective-C, and JavaScript. Additionally, I have extensive experience with essential mobile frameworks like In-App Purchases, Maps, Camera, and Push Notifications. 📦 Third-Party Integration: I bring a wealth of experience in integrating third-party SDKs, making your app feature-rich and interactive. Some of the SDKs I've successfully integrated include Facebook, Stripe, Google Maps, AdMob, and more. 📊 Quality and Scalability: My commitment to quality is unwavering. I create apps that are not only responsive but also rigorously tested across a wide range of devices. I pride myself on delivering well-architected, well-documented, and easily maintainable projects, ensuring that your app can grow and adapt as your company does. ✅ My Skill Set: Languages: JavaScript, Dart, Java, Swift, Objective-C Platforms: Flutter, Android, iOS Familiar with SDKs & Tools: Firebase, Stripe, Mapbox, Google Maps, Facebook, Twitter, LinkedIn, and more Environments: Proficient in Windows and MacOS Version Control and Project Management: Bitbucket, Github, Jira, Trello, and others 💼 Let's Collaborate: If you're looking for a Flutter developer who can turn your app ideas into reality, I'm ready to discuss your project and bring it to life. My commitment to excellence and a track record of successful projects make me the ideal choice for your mobile app development needs. Let's build something great together!

  • Hybrid App Development
  • Android
  • Flutter
  • Firebase
  • Map Integration
  • Push Notifications
  • RESTful Architecture
  • iOS
  • Dart
  • Location-Based Service
  • In-App Purchases
  • Camera
  • CI/CD
Phuc Co N.

Ho Chi Minh City, Vietnam

$17/hr
5.0
4 jobs

Top Rated Flutter developer. 8+ years in software, 7+ in mobile, 5+ in Flutter. I own the iOS/Android lane end-to-end: architecture, features, store release, and the crash/performance work after launch. 📦 Shipped (production): • Savvi — AI productivity app with RevenueCat paywall and Firebase crash monitoring • Foreverly — AI couple space with subscriptions and push • Voice Nudge — audio/habit app (RevenueCat + OneSignal) • Friendkeez — vacation-home community on mobile + Flutter web (Stripe, realtime, maps) • Bonpéi — customer + merchant marketplace apps (maps, device auth) • SpinKube — puzzle game with Firebase + ads 🎯 What clients hire me for: • Build a Flutter MVP or production app from Figma → App Store / Play Store • Take over an existing Flutter codebase (architecture, performance, Crashlytics) • Add payments, auth, chat, maps, or AI features without rewriting the app • Flutter web when the product needs one codebase for mobile + web 🛠 Stack I actually ship with: • Flutter / Dart, Clean Architecture (Bloc or Provider, Dio + Retrofit, go_router / auto_route) • Firebase: Auth, Firestore, Storage, Crashlytics, Messaging, Remote Config, Cloud Functions • RevenueCat subscriptions and Stripe checkout (mobile + Flutter web) • Realtime: Socket, Firestore, OneSignal / FCM • Maps & location: Google Maps, geolocation, background tracking when the product needs it • AI product features wired through backend / Cloud Functions (chat, content, couple/productivity apps) 💬 How I work: Clear updates, realistic estimates, ownership of delivery. I write code the next developer can maintain — including multi-flavor builds and TestFlight / Play rollout. Send the brief. I'll reply with a short plan, timeline, and what I would build first. Flutter · Dart · Firebase · Bloc · Clean Architecture · RevenueCat · Stripe · iOS · Android · Flutter Web · Google Maps · OneSignal

  • Flutter
  • JavaScript
  • TypeScript
  • Firebase
  • NodeJS Framework
  • CI/CD
  • Dart
  • AI Chatbot
  • AI Image Editing
  • AI Text-to-Image
  • Firebase Cloud Firestore
  • Firebase Realtime Database
  • Google Ads
  • Angular
  • React
  • Vue.js
  • NestJS
  • Stripe
  • Git
  • In-App Purchases

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Don't just take our word for it

What does a Firebird specialist do?

A Firebird specialist manages the operational health and security of databases built on the Firebird SQL engine. This role focuses on maintaining data integrity through routine housekeeping, executing reliable backup procedures, and administering user access controls. The specialist uses native command-line utilities to monitor performance metrics and apply structural changes to the database schema.

  • Execute full and incremental backups using gbak or nbackup utilities to protect data against loss. Verify the integrity of these backups by performing test restores to confirm that disaster recovery procedures function correctly when needed.
  • Perform database housekeeping and garbage collection tasks with the gfix utility to reclaim disk space and maintain optimal performance. Monitor database statistics using gstat to identify fragmentation issues or other structural problems that require immediate maintenance attention.
  • Administer database security by defining and managing SQL privileges and roles for individual users and applications. Use gsec and isql tools to configure access controls, ensuring that only authorized personnel can view or modify sensitive data within the system.
  • Diagnose database health issues by gathering detailed statistics and analyzing output from Firebird reporting tools. Run and validate SQL or DSQL scripts using the isql client to implement administrative changes, schema updates, or data corrections without disrupting active services.

How to hire a Firebird specialist on Upwork

Step 1: Post a job

Define your database maintenance and administration needs clearly to attract qualified candidates. The Job Post Generator powered by Uma™, Upwork's Mindful AI drafts a complete post from a few sentences describing your requirements. You can write a new post, update a saved draft, or reuse an existing post to start the search.

  • Specify required experience with Firebird backup utilities like gbak or nbackup for disaster recovery planning.
  • List housekeeping tasks such as running gfix for garbage collection and maintaining database health.
  • Detail security management duties including SQL privileges, roles, and user access control via gsec.

Step 2: Evaluate candidates

Review portfolios for evidence of database stability and successful restore operations. Uma runs instant video interviews and builds shortlists with side-by-side comparisons to help you identify top performers quickly.

  • Look for documented runbooks showing validated restored databases tested after backup execution.
  • Check for diagnostic reports generated by gstat that demonstrate troubleshooting and monitoring skills.
  • Verify experience writing SQL/DSQL scripts using isql for administrative changes and batch processing.

Step 3: Interview your top choices

Discuss specific technical approaches to database maintenance and security configuration. Schedule and conduct interviews within Upwork Messages to receive an immediate transcript and summary after each session.

  • Ask how they handle incremental backups with nbackup versus full backups with gbak.
  • Request examples of complex SQL privilege structures they have implemented for role-based access.
  • Discuss their process for interpreting gstat output to identify performance bottlenecks or corruption.

Step 4: Agree on scope and begin work

Set clear deliverables such as backup schedules, security scripts, and maintenance logs. Use Upwork Messages and the contract workroom for communication and project management while relying on identity verification, payment protection, hourly tracking, and project funds for security.

  • Define milestones for delivering validated backup runbooks and confirmed restore tests.
  • Outline expectations for regular housekeeping tasks and garbage-collection results using gfix.
  • Establish reporting requirements for database statistics and health checks produced by gstat.

Upwork is not affiliated with and does not sponsor or endorse any of the tools or services discussed in this article. These tools and services are provided only as potential options, and each reader and company should take the time needed to adequately analyze and determine the tools or services that would best fit their specific needs and situation.

The rates and information provided in this article are based on current data and industry sources available at the time of publication. Freelance rates can vary depending on factors such as experience, location, project scope, and market conditions. Readers are encouraged to conduct their own research to confirm current rates and trends, as this information may change over time.

How much does hiring a Firebird specialist cost?

$500-$1,500 per project is a typical range for focused Firebird specialist work. Final pricing depends on scope, technical complexity, required integrations, source-material quality, revision needs, and the freelancer's experience level.

Database health diagnostics

$500-$1,200/project

Entry-level to mid-level
  • Generated database attributes using gstat
  • Identified maintenance needs via diagnostic tools
  • Listed required housekeeping actions

Routine maintenance execution

$1,200-$2,500/project

Mid-level
  • Executed garbage collection with gfix
  • Confirmed database integrity post-maintenance
  • Documented observed system improvements

Backup and restore setup

$2,500-$4,500/project

Mid-level to senior-level
  • Configured gbak or nbackup procedures
  • Tested and validated recovered databases
  • Authored step-by-step disaster recovery guide

Security configuration

$4,500-$7,000/project

Senior-level
  • Defined SQL privileges and roles via isql
  • Updated security settings using gsec
  • Recorded permission changes and access rules

Complex schema migration

$7,000-$12,000/project

Expert-level
  • Mapped DSQL changes for structural updates
  • Executed batch scripts for data movement
  • Verified data consistency and application connectivity

Frequently asked questions

Is hiring a Firebird specialist worth it?

For most businesses, yes: hiring a Firebird specialist is worthwhile. These experts manage critical database maintenance tasks like garbage collection and backup verification that general developers often overlook. They prevent data corruption and performance degradation through routine housekeeping with tools like gfix.

How do I evaluate Firebird specialist candidates?

Evaluate candidates by asking them to describe their process for validating a database restore after using gbak or nbackup. A strong candidate will explain how they verify data integrity and check statistics with gstat rather than just confirming the file exists.

What tools does a Firebird specialist use?

A Firebird specialist uses command-line utilities such as gbak for backups, gfix for housekeeping, and isql for running SQL scripts. They also employ gstat to monitor database health and gsec to manage user security roles.

Can a Firebird specialist help with database security?

Yes, a Firebird specialist configures access control by defining SQL privileges and managing user roles within the database engine. They implement these security measures using tools like gsec and isql to restrict unauthorized access.