KloudOpp Limited is a startup educational technology company, building talents and providing opportunities for them.
Role Summary
- We are hiring a Senior C# / .NET Engineer with 10+ years of hands-on backend engineering experience to design, build, and scale mission-critical platforms across:
- Payments & Switching
- Digital Banking
- Crypto & Web3
- Digital Lending
- Fintech Infrastructure / BaaS
- Personal Finance / Wealth
- FX & Remittance
- ERP & Commerce (including Fashion & Retail platforms)
- This is not an oversight or advisory role.
- You must be:
- Deeply hands-on
- Obsessive about clean architecture, SOLID principles, and best-practice code
- Comfortable owning production systems
- Result-driven, because your performance is tied to monthly milestones in an Agile delivery environment
- You will build and operate high-scale, secure, event-driven, cloud-native systems used in real financial workflows.
Tech Stack (You Must Be Strong In These):
- Backend: C# (.NET 8 / .NET Core), ASP.NET Core, Web APIs, Background Workers
- Databases: PostgreSQL (primary), MongoDB (unstructured data)
- Cloud: AWS (EC2, S3, RDS, Lambda), Azure (App Services, Functions, Event Grid, Service Bus)
- Caching: Redis
- Messaging / Events: RabbitMQ (or Azure Service Bus / similar)
- Architecture: Serverless, Event-Driven, Microservices, Clean Architecture, API-first systems
What You’ll Do
- Architect and build scalable, secure backend systems for fintech-grade workloads
- Design and implement event-driven and serverless architectures on AWS & Azure
- Build and maintain high-performance APIs using ASP.NET Core
- Own database design, performance tuning, and data integrity (PostgreSQL & MongoDB)
- Implement message-driven systems using RabbitMQ and background workers
- Write clean, testable, production-grade C# code following Clean Architecture and SOLID principles
- Enforce engineering best practices: code reviews, architecture standards, CI/CD discipline
- Collaborate in an Agile environment with clearly defined monthly delivery milestones
- Take responsibility for system reliability, scalability, performance, and security
- Mentor other engineers and raise the overall engineering bar
- Work closely with product and business to ship real business outcomes, not just features
Requirements
What We’re Looking For
- 10+ years of professional backend engineering experience
- Deep mastery of C# and .NET (Core / .NET 8+) in production environments
- Strong experience in fintech, payments, banking, lending, or high-scale platforms
- Proven experience with:
- PostgreSQL (schema design, performance tuning, transactions, migrations)
- MongoDB for unstructured or event data
- Redis for caching and performance
- RabbitMQ or similar message brokers
- Strong experience with AWS (EC2, S3, RDS, Lambda)
- Solid understanding of Azure serverless & event-driven architectures
- Strong grasp of:
- Distributed systems
- Event-driven design
- Clean Architecture / DDD-style layering
- Security, performance, and reliability engineering
- Writes clean, maintainable, testable, production-grade C# code
- Comfortable owning production systems and delivery outcomes
- Highly result-oriented and accountable to milestones
Performance & Culture:
- This role is delivery-driven
- You will have monthly milestones tied to real product outcomes
- You are expected to:
- Ship
- Improve system quality
- Reduce technical risk
- Increase platform reliability and performance
- We operate in an Agile, execution-focused environment
- High autonomy, high responsibility, high impact.
Salary
- N500,000 - N600,000 monthly
- Based on experience, delivery strength, and technical depth.
Method of Application
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