Job description
 
                         Role Description
The  Full Stack Lead Architect  will lead the end-to-end technical architecture, design, and development of a large-scale, cloud-native digital payment platform hosted on  AWS  .
The role requires deep expertise in  Next.js, React Native, NestJS, PostgreSQL, Redis, and AWS  infrastructure.
You will define the technical roadmap, lead design reviews, oversee code quality, ensure data security and compliance with data sovereignty laws, and mentor a multi-disciplinary engineering team across frontend, backend, and mobile domains.
Key Responsibilities  Architecture & Design   Define and document the system architecture for K-Bills, including microservices, APIs, and integrations with M-Pesa, banks, and vendors.
Design scalable backend services using  NestJS  and  AWS ECS/Fargate , ensuring modularity and maintainability.
Oversee frontend architecture for both  Next.js (web)  and  React Native (mobile)  apps.
Design and optimize the database schema (PostgreSQL) and caching layer (Redis).
Establish best practices for API design, authentication, and orchestration.
Technical Leadership   Lead a team of full-stack developers, mobile engineers, and DevOps resources.
Conduct architecture reviews, design walkthroughs, and code reviews.
Collaborate closely with the Product Manager, UI/UX team, and QA engineers.
Translate business requirements into scalable technical solutions.
DevOps & Cloud Infrastructure   Oversee setup and configuration of AWS environments (VPC, ECS, RDS, ElastiCache, CloudFront, Route 53, IAM, WAF).
Implement infrastructure as code (Terraform/CDK) and CI/CD pipelines (GitHub Actions).
Establish monitoring, logging, and alerting through CloudWatch and X-Ray.
Ensure 99.5% uptime SLA and seamless auto-scaling for high traffic.
Security & Compliance   Ensure platform compliance with  Kenya Data Protection Act  and ISO 27001 principles.
Manage IAM roles, KMS encryption, and secure API integrations.
Implement multi-factor authentication, secure session management, and audit logging.
Integration & Payments   Architect integration workflows with  M-Pesa (Daraja API) , banks, and vendor systems.
Build robust reconciliation and reporting systems for transaction validation.
Ensure real-time event processing with SQS/SNS and WebSockets for notifications.
Mentorship & Documentation   Mentor junior engineers and provide technical training.
Maintain detailed technical design documents, API specs, and architecture diagrams.
Contribute to technology roadmap and sprint planning.
Technical Skills Required  Core Stack    Frontend:  Next.js, TypeScript, Tailwind, React Query
Mobile:  React Native (Expo), Firebase/FCM
Backend:  NestJS (Node.js), TypeScript, ExpressJS, RESTful APIs
Database:  PostgreSQL, TypeORM / Prisma ORM
Cache & Queues:  Redis, BullMQ, SQS/SNS
CI/CD:  GitHub Actions, AWS CodeBuild, Docker, ECR
Infra:  Terraform / AWS CDK, ECS Fargate, CloudFormation
Monitoring:  CloudWatch, Grafana, X-Ray
Bonus Skills   Microservices & API gateway design
Event-driven architecture with EventBridge
Familiarity with fintech integrations (M-Pesa, card payments)
Multi-language apps (English/Swahili)
Knowledge of Flutterwave or banking APIs
Qualifications   Bachelor’s or Master’s in Computer Science, Software Engineering, or related field.
8+ years of professional full-stack experience.
3+ years in a technical leadership / architect role.
Proven record designing scalable, cloud-native SaaS or fintech platforms.
Deep understanding of security, performance tuning, and DevOps best practices.
Strong communication and stakeholder management skills.
 
                    
                    
Required Skill Profession
 
                     
                    
                    Computer Occupations