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Top freelance Firebase developers available to hire
Website: https://linktr.ee/YoKulGuy
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I'm a realist, aspiring general system thinker, and software craftsman. Despite specialists giving much contribution and productivity to society, general system thinkers and their general system thinking can help us solve the second-order effect of human creation.
As a society, we build civilization; we build skyscrapers, aeroplanes, gadgets, and all the advancements in technology, but we overlooked the second-order effect of our creation. Global warming and gadget addictions are an example to name a few.
The more people adopt general system thinking, the more we can achieve a better society and brings our world to the next thousand years.
I do research and craft code as my way of expressing my idea and belief. I crafted a scientific computation tool and instrument to help researchers do better research when I was in college.
I led a team in a startup called Mekari to empower businesses in Indonesia. I previously worked at Midtrans, enabling software developers to be more productive and better empower commerce through technology.
I write production code in Elm, JavaScript, Bash, Ruby, and Java. In 2020 I did functional programming on Elm and built a community around it. Feel free to reach out to me if you are an Elm user!
Working in the IT sector for more than 10 years.
With over 10 -years of freelancing and professional experience taught me all kinds of frameworks and languages, ranging from React, Angular, Vue, Node js, Express js, React Native, Redux, Rx JS, JavaScript, Typescript, WordPress, PHP, MySQL, MongoDB, Firebase, Sqlite, Postgresql, ES5+, Python3, Machine Learning, Deep Learning, RNN, CNN, Android Java/Kotlin, iOS Swift/SwiftUI, C/C#/C++, .Net, Assembly, VBA, VB, Excel Macro, Java, Spring Boot Micro-services, Zoho, Salesforce, Hubspot, R, Shiny, STATA, MATLAB, Google Sheet, App Script, Bubble io, etc.
Over my long career, I have come across all kinds of challenges and gained vast experience with different kinds of industries like portals, medical industry, perception exercise, employee management, etc.
I have good experience with frontend development using React JS along with Typescript, Firebase, GraphQL, React Native, Native Script, React, Material UI, Ionic, Node.js, Web Sockets, and real-time communication.
I have also worked on containerization technologies like Kubernetes, Docker, AWS, GCP, Azure etc.
I am very good with backend technologies as well like Java Spring boot, Microservices, MySQL, Postgres, Elasticsearch, AWS/Google integration.
Please contact me to get the result done in a professional way.
Full Stack Developer with 6+ Years experience with an expertise in NextJs, NestJs, React, React Hooks, Functional Components, Restful API Integrations, Error Handling and State management tools like Redux, Redux-Saga and Redux-Logic etc.
My area of expertise also includes NextJs, NestJs, React Native (iOS & Android), React Web Apps, Firebase, in-App Purchases, webRTC based Audio, Video Calling applications with chats and deployment on Google Play and App Store Connect.
I'd love to help you solve your programming problems in best possible way. Cheers!
I am an experienced software engineer, excellent in Web, Mobile and Desktop Application Development using technologies like React, React Native, .NET Framework, NodeJS, Electron, Angular, Ionic Framework, NestJS, NextJS, PHP, PostgreSQL, MS SQL, MongoDB, Firebase and others. I have experience working with Figma Designs, Adobe XD, Adobe PhotoShop and Adobe Illustrator. I can create and deploy web, mobile (IOS and Android) and desktop applications seamlessly.
I am a computer science graduate and a senior software developer with 10 years of experience. I have built management systems, delivery systems, and fintech software.
🚀 Turning Boring into Brilliant
I specialize in automating the mundane and transforming inefficiency into opportunity. I sell a powerful ERP + POS system that streamlines operations, teach Python and Excel with real-world flair, and serve as the Technical Advisor for the Systems Development course at the University of Cape Town. Whether it's simplifying workflows or mentoring future tech leaders, I'm all about creating smarter, faster ways to get things done.
I am an adept **Full Stack Software Engineer and Architect** and with a wealth of experience in frontend, backend, and Data Structures and Algorithms (DSA) solution development. My expertise spans **clean architecture, TDD(test driven development), code reviews, debugging, and profiling**, enabling the delivery of high-quality solutions within constrained short timeframes.
I have worked and collaborated with numerous prominent global blue chip corporations, startups, and international clients. Additionally, have made substantial contributions to Pluralsight and Stack Overflow, boasting a reputation exceeding 37k+ and ranking within the top 0.30% of users on the latter platform.
Motto: Full refund in case of no help.
Discounts:
- Student discount is applied automatically.
• Senior software engineer, have worked as a Subject Matter Expert and lead with the primary role to develop features, solve complex bugs, architecture refinements, feature integration, and development.
• I intent to deliver a top-quality experience by delivering the most optimal solutions and guidance to enlighten the learners.
• I have helped many developers to fix critical bugs and implement complex features on the Codementor platform.
• Teaching is one of passing and I have helped numerous mentees on their journey to become successful developers in various fields such as web, native mobile, and big data.
• I have expertise in curating and simplifying the content to deliver the best experience with different analogies.
• I am deft at feature implementation, debugging, and refactoring.
If you have any questions, Feel free to reach out, looking forward to meeting you.
A seasoned software developer who worked with Amazon and has 6+ years of experience developing applications that scale efficiently and remain maintainable in the larger frame of the product lifecycle. Have built robust applications which have scaled from 500 to 21+ million users serving one of the biggest supply chains in the world. Have also delivered on projects of all sorts in Java and Python with companies like Samsung and Paytm as well as freelancing with multiple Silicon Valley startups.
Also have mentored a lot of folks at all ages and levels in Data structures, Algorithms, Web development, System design, and programming languages like Python, Java, JS, Golang, etc.
Come say Hi👋 First session is always on the house :) See if my teaching style really makes a difference in your journey or not
Hey there!
I'm Sebastian, a Senior Software Engineer with 14+ years of crafting high-quality software. I blend deep technical expertise with a business mindset (B.A. International Business + M.Sc. Computer Science) to deliver creative, structured solutions that drive real value—always following SOLID principles, clean code, and TDD.
Currently, I lead development at Aihoo (aihoo.ai), building an innovative AI platform for multi-chatbot interactions, comparative analysis, Meta Refine mode, and AI Winner Picker. Since 2023, I've specialized in AI-powered apps: real-time streaming chats, tool-calling agents, provider-agnostic LLM setups using Vercel AI SDK.
As a freelancer, I've delivered dozens of web, mobile, and AI projects for international clients, focusing on scalable, user-centric solutions with measurable ROI. Recent highlights include LevelApp (cross-platform React Native gaming/social app with IGDB integration, 1,000+ users, strong conversion in Germany) and speaking at Google Dev Event 2024 about Aihoo.
I love mentoring—let's solve your challenges together, improve your code architecture, and get your project production-ready without headaches.
Fluent in English, Spanish, German. Based in Santa Cruz, Bolivia.
Let's work together!
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Frequently asked questions
How long do Firebase projects normally take?
The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance Firebase project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance Firebase request on Codementor, check out our article.
How much does it cost to hire a freelance Firebase developer?
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What makes Codementor Firebase developers different?
We do a comprehensive technical and communications screen of all Firebase developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing Firebase developers’ user satisfaction rates.
What happens if I’m not happy with the freelancer’s work?
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For more answers to frequently asked questions, see here.