Senior Software Engineer (FRONTEND OR FULL STACK)(REMOTE)

Kobi: Simplifying Secure Payments, One Transaction at a Time

Hey there! ? We're on the lookout for a Senior Software Engineer to join a rapidly growing team that’s transforming the way secure payments are made. We’re building an innovative service payment app targeting Android, iOS, and Web. ?

As a Software Engineer at Kobi, you’ll be a key player in shaping a platform that will redefine secure transactions. You'll collaborate closely with product managers, fellow engineers, and leadership to deliver a user-friendly app that our users can rely on. If you're passionate about pushing boundaries, solving complex problems, and building secure mobile solutions, this is an exciting opportunity to get in early and make a big impact! ?

Roles: Contract to Hire or Full time

Key Responsibilities

If you have experience building fintech applications, integrating Google Cloud services, optimizing Flutter applications for high-concurrency transactions, and collaborating across engineering teams, this role offers the opportunity to build at scale from the ground up.

Bonus: Experience with native iOS/Android development, backend APIs, or security frameworks is a plus!

  ? Frontend & Mobile Development 

• Develop & optimize Flutter apps for Android, iOS, and Web using BLoC or Riverpod for scalable state management.
• Ensure pixel-perfect UI/UX, high performance, and adaptive UI across devices.
• Implement real-time updates, biometric authentication, and secure local storage for user sessions.
• Design modular, reusable components and ensure frontend codebase is structured, clean, and scalable.
• Improve performance by optimizing Flutter animations, rendering, and API calls.

• ? Backend & API Integrations 
• Build and maintain RESTful and GraphQL APIs for high-performance and secure data exchange.Ensure real-time data synchronization using WebSockets, GraphQL, or Firebase.
• Implement backend abstractions that allow easy migration from third-party dependencies to native backend solutions.
• Microservices Architecture: Design and implement modular, scalable microservices to handle payments, authentication, and other transactions.
• .Database Management: Utilize PostgreSQL, MongoDB, and Firestore for efficient data storage and retrieval.
• Authentication & Security: Implement OAuth, JWT, multi-factor authentication (MFA), and tokenization for user security.
• Performance Optimization: Ensure low-latency API responses and database query optimization.

• ? Security & Compliance
• Implement data encryption (AES-256), secure authentication (OAuth/JWT), and multi-factor authentication (MFA).
• Ensure adherence to NDPR, GDPR, and PCI-DSS for handling financial transactions.
• Collaborate with security teams to prevent fraud, enforce rate limiting, and implement real-time monitoring.
• Work on secure API interactions, token management, and client-side encryption for data protection.

• ⚡ Scalability, Performance & Architecture
• Design scalable frontend architecture that supports seamless expansion to native backend systems.
• Ensure low-latency interactions and fast load times by caching requests, optimizing UI rendering, and reducing app footprint.
• Implement CI/CD pipelines for automated testing, quality assurance, and stable rollouts.
• Work with backend teams to define efficient database structures and indexing strategies for speed and reliability.
• ? Documentation & Collaboration
• Maintain comprehensive documentation for frontend architecture, API integrations, and security protocols.
• Work cross-functionally with teams to ensure a seamless payment experience.
• Participate in code reviews, sprint planning, and system architecture discussions.
• Document frontend-to-backend workflows, API dependencies, and versioning strategies for maintainability.

? Who You Are

✅ A Front-end or Full-Stack Expert: You specialize in Flutter frontend but can also contribute to serverless backend (firebase) or native backend/microservices.

✅ Security-Conscious Engineer: You understand API security, encryption, and fintech compliance.

✅ A Team Player: You collaborate across engineering, product, and other teams.

✅ Problem-Solver: You thrive in fast-paced fintech environments and proactively solve technical challenges.

? Why Join Kobi Pay?

✨Transportation:  Potential commute to HQ state covered if needed. ✈️

✨Performance Bonus: Earn bonus depending on performance. ?

✨ Flexible Work Hours: Flexible working hours.

✨ Vacation & Mental Health Days: Prioritize your well-being with time off.

✨ Fully Remote (Nigeria-Based) – Work flexibly from anywhere with occasional in-person meetings.

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