
At the very least, we expect you to have -
- Very strong JS fundamentals, ES6, functional & OOP concepts
- Understanding of REST APIs, the document request model, and offline storage
- Knowledge of advanced React Native concepts
- At least 4 years experience building and shipping mobile applications
- At least 4 years experience working with React Native
We are a Silicon Valley founded & headquartered startup with an engineering office in Bangalore, building a payments platform around Bitcoin & the Lightning Network.

About lastbit
About
At lastbit we are building a family of ultra-secure devices to facilitate the daily usage of crypto and hence mainstream adoption. One can purchase a lastbit device, securely store crypto and walk into any store and pay for a purchase using crypto at the POS terminal, IRRESPECTIVE of whether the merchant accepts crypto.
Since the advent of Bitcoin, a financial revolution of sorts has made it clear that it cannot be ignored any longer. However, for crypto to be used as a currency, a steep learning curve hinders adoption. To catalyze the mainstream adoption of crypto our solution enables anyone to use crypto with zero knowledge (pun intended) - analogous to using a debit card.
The lastbit Bridge service is a two-way bridge that allows cross currency transactions between crypto and fiat at the lowest possible fee and the real instant exchange rate and is integrated onto lastbit hardware.
The first generation of lastbit hardware allows users who already own hardware wallets, to augment their devices and add IOT/NFC connectivity, sensors, lastbit UX etc. without breaking the existing security model. Our second generation hardware features a complete standalone device capable of being used to send crypto/fiat wirelessly, pay at POS terminals instantly with crypto/fiat, peer to peer exchange/transfer in crypto/fiat and more, essentially addressing the entire cycle of digital transactions.
All lastbit hardware and the Bridge service are compatible with the lastbit Hodler mobile application, a comprehensive application to track your portfolio, send remote transactions, convert funds on the go and more.
Our hardware always ensures that the user and only the user is in control of their private keys, thus allowing the masses to be their own crypto-friendly bank.
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What We Expect:
- Min 3 years of mobile development experience, with Flutter & Dart.
- Proven ability to build and scale real-time, high-performance fintech applications.
- A sharp eye for stunning UI/UX design that balances aesthetics with seamless functionality.
- Mastery over state management solutions (Provider, Riverpod, BLoC, or similar).
- Hands-on experience with real-time data streaming, push notifications, and WebSockets.
- Strong expertise in security, encryption, and compliance—you know fintech demands precision.
- A track record of integrating RESTful APIs, GraphQL, and third-party services into flawless mobile apps.
- A mindset that thrives under pressure—we work fast, and we expect results.
- Lead the development of world-class fintech mobile applications that redefine user expectations.
- Architect and optimize blazing-fast, low-latency Flutter applications for financial markets.
- Work with designers, backend engineers, and product teams to craft seamless, intuitive, and ultra secure user experiences.
- Solve hard problems at scale—whether it’s optimizing performance, reducing load times, or ensuring absolute security.
- Push the boundaries of mobile fintech innovation, from AI-powered insights to predictive analytics.
- Own your work end-to-end—no excuses, no hand-holding, just results.
Must-Have Skills:
- Min 3 years of mobile development experience, with 2+ years in Flutter & Dart.
- Proven ability to build and scale real-time, high-performance fintech applications.
- A sharp eye for stunning UI/UX design that balances aesthetics with seamless functionality.
- Mastery over state management solutions (Provider, Riverpod, BLoC, or similar).
- Hands-on experience with real-time data streaming, push notifications, and WebSockets.
Why Join Us?
- Work with some of the sharpest minds in fintech and mobile engineering.
- Build products that traders, investors, and financial professionals rely on daily.
- A culture that values bold innovation, fast execution, and pushing boundaries.
- Expect challenges, high expectations, and relentless pursuit of excellence.
- Take complete ownership—from ideation to deployment, every pixel and every line of code should scream excellence.
- Competitive compensation, performance-driven growth, and a real opportunity to lead and shape the future of fintech mobile applications.
Urgent Hiring !!!
We are looking for Flutter Developer,
1+ years of experience in developing native and cross-platform mobile applications
Experience in one of the programming languages: (Java and Kotlin (Android) Swift and Objective-C (iOS))
React Native (hybrid development)
Knowledge of Flutter SDK, Getex, Provider, Android Studio and IntelliJ, Visual Studio Code,
SQLite, MySQL, and PostgreSQL databases
REST APIs
Experience with Git and Jira
Familiarity with Agile development approaches
Experience: 1 to 2 years
Location: Surat (onsite & fulltime)
Executive - Application Development (2)
Web & Mobile Applications development
- Responsible for driving development team and coordinate strategies to ensure smooth functioning of delivered software service to internal customers.
- Ability to work with complex business scenarios supporting critical business functions deployed across multiple locations.
- Manage day-to-day activities of application development team following SDLC principles.
- Exposure to Agile or Scrum Development, DevOps preferred
- Exposure to API management and UX design preferred
- Manage and coordinate the teams working on development using PHP/MYSQL, Oracle/APEX, Android Mobile application, etc.
- Help maintain the code quality, its organization, and automations.
- Experience in Project and team management
- Should have worked on large scale applications
- AWS Cloud Solutions: We expect you to have a strong understanding of AWS services and how to architect solutions using them.
- Use of DynamoDB, S3, Vault, Lambda, or other AWS infrastructure components.
- Design scalable, highly available, and fault-tolerant cloud architectures.
- Continuous Integration and Deployment (CI/CD): Understanding CI/CD pipelines and tools like AWS CodePipeline, CodeCommit, and CodeDeploy is essential.
- Advanced concepts in React Native.
UPCRED powers AI-Recommendation on Social Content Creators, helping them discover content monetization and helping Brands/Businesses explore Influencer Marketing.
The company’s advert platform is powered by artificial intelligence, which is used by businesses for Influencer Discovery, Campaign Management, and Campaign Analytics through UPCRED Pixel Management.
Our technology visions to have one-third of the world's social consumers discover new things through recommendation feeds from their favorite social media creator and which connects advertisers to these audiences to grow their business.
UPCRED Social has long-term partnerships with a variety of digital content creators and has the vision to democratize the social earning for content creators in India.
UPCRED Advert wants to be an all-in-one influencer marketing platform designed to help businesses own their influencer relationships.
Responsibilities:
The React Native App Developer will own and drive app development—including decisions about tools, technologies, and processes - for UPCRED.
This is an incredible opportunity for anyone interested in being a part of a high-performing, fast team with a massive learning curve. Our team moves fast and develops world-class products by pushing the boundaries of React Native app development. If hired, you will be part of UPCRED's in-house Product & Engineering team.
Develop cross-platform mobile applications in React Native which customers love using
Work with product, design, backend teams to develop features.
Work on bindings and integrations required with native iOS and Android libraries
Plan, estimate, and delivery your project with minimal supervision.
Skills:
2 - 5 years of React Native experience with some hands-on experience with app development and launches especially deployment with the App Store and Play Store [Android + iOS].
Understanding of REST APIs, the document request model, offline storage, state
management.
Experience in Firebase and App Analytics tools
Experience with Content/Video-based app.
Experience with native Android or iOS development.
Understanding of Social Video-based app Architecture
HOW?
Apply, and let us know your interest?
UPCRED, that's how we grow, fair and transparent!
Note: Candidates who is having a notice period of more than 45 do not apply
Good to have skills:
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Should have a positive approach with an urge to learn new skills. Should be innovative and ready to probe into new areas of business. Should be open to learn new technologies. Should be ready to work in a team |
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Should have a minimum of 3-4 years of relevant work experience. |
We're looking for an experienced and mature engineer (2-6 yrs experience), who wants to build incredible products while shaping the architecture, tools, and engineering culture of our company
Responsibilities:
- Architect and build our native Android application using Java or Kotlin.
- Set up our backend using either the MEAN (Mongo, Node) or Django stack.
- Collaborate with the design team on feasibility and design reviews.
- Set up DevOps processes - CI/CD and release management.
- Hire an additional backend engineer to scale the application based on requirements.
Requirements:
- You possess strong computer science fundamentals.
- You have native Android application development skills - with Java/Kotlin as a framework.
- You have strong knowledge of Android UI design principles, patterns, and best practices.
- You have built backends for mobile applications - using the MEAN or Django stack.
- You have some mobile app projects that are worthy of public view (Play Store, Github).
- You like discussing a plan upfront, welcome open collaboration and are an excellent verbal and written communicator.
- We’re a fast-paced environment so while we value robustness, we also hope for speed. You’ll hop from project to project and should be a self-starter.
- You are open to learning new stuff (important).
- You are humble, kind, and are open to feedback (important)
• Own architecture, design, development, and implementation of different
modules/features of the Application
• Be up to date with the latest trends in Mobile App/React Native ecosystem
• Bring in industry best practices
• Take ownership to drive an initiative to completion
• Discover opportunities for performance improvements
• Recommend ways to improve reliability, efficiency and code quality
• Focus on continuous delivery and reducing complexity
• Carry out code reviews and manage pull requests within the mobile application
development team
Requirements
• Overall 5+ years of experience in Mobile Application development
• At least 2+ year of hands-on experience in developing Mobile applications with
React Native
• B.E/B.Tech in CS or equivalent streams from institute of repute (IITs, NITs, BITs,
IIITs or equivalent)
• Familiar with native build tools - XCode, Android studio, etc.
• Ability to write readable and maintainable JavaScript code
• Ability to build pixel-perfect user interfaces with smooth interactions
• Knowledge of Web technologies and concepts - HTML, CSS, REST APIs,
Caching, etc.
• Knowledge on Android and iOS fundamentals is a must
• Experience developing Android/iOS native applications using
Java/Kotlin/Swift/Objective C is a plus
• Mobile application development experience with Flutter/Ionic is a plus
Hands on experience in React Native.
Hands on coding skills in JavaScript for mobile
Well versed with continuous integration & delivery tools like Jenkins & SonarQube
Well versed in Agile methodology and team coordination in onsite - offshore model
E- commerce experience is desired.
React Native experience is highly desired Other Skills:
Should have experience in working in Dual Shore model excellent coordination skills











