Bryne Chikomo

Results-driven Full-Stack Software Engineer & AI/Cloud Specialist with 4+ years of experience designing and delivering scalable fintech, web, and cloud-native systems. Experienced across the full software development lifecycle, including system design, backend and frontend development, cloud infrastructure, and production optimisation of high-traffic distributed systems. Contributed to the UN e-TIR system supporting international operations across 70+ countries.

Strong expertise in AWS cloud architectures (Lambda, API Gateway, ECS, RDS, DynamoDB, CloudWatch, Terraform), real-time systems using WebSockets and Twilio, and secure fintech integrations including Stripe, North.com, SEON, and fraud detection services. Experienced in building systems aligned with OWASP Top 10 and PCI-compliant security practices. Skilled in AI-powered systems using Amazon Bedrock and Gemini, including chatbots, document processing, KYC automation, and natural language data querying.

Focused on delivering secure, scalable, and production-ready systems in Agile environments with a strong emphasis on architecture and system reliability.

Senior Full Stack Software Engineer + DevOps at Planet42 (2026-04 – Present)

• Architected and developed an enterprise-grade Loan Management System (CORE) replacing Snowflake and Swordfish as the organization's primary collections and financial operations platform, reducing operational costs by over R300K annually while establishing a unified source of truth for 26,000+ vehicle subscription contracts.
• Designed and operated scalable AWS-based cloud infrastructure using ECS Fargate, RDS PostgreSQL, ECR, S3, IAM, SES, CloudWatch, AWS Secrets Manager, and SSM Parameter Store, supported by Terraform Infrastructure-as-Code for reproducible, version-controlled environment provisioning across production systems.
• Led large-scale migration of 26,000+ contracts, 670,000+ payment records, and historical operational data.
• Developed secure integrations with ALLPS/Amplifin, Twilio, Netstar, Google Workspace SSO, and external financial systems to support omnichannel communications, debit order processing, GPS telemetry, and real-time customer engagement workflows.
• Implemented AI-powered financial analytics and natural language querying capabilities using Google Gemini, enabling secure AI-assisted operational insights with POPIA-compliant PII sanitisation and read-only SQL execution safeguards.
• Built and optimized production-grade Next.js applications featuring role-based dashboards, fleet management tooling, approvals systems, collections workflows, reporting, and real-time operational monitoring interfaces.
• Implemented enterprise security and operational best practices including centralised secrets management, TLS 1.3 encryption, structured logging, RBAC, webhook signature validation, infrastructure-as-code, CI/CD pipelines, and penetration-tested application security controls.
• Improved platform scalability, reliability, and developer experience through containerised deployments, automated infrastructure provisioning, monitoring pipelines, and operational observability across distributed services.
• Collaborated closely with engineering, operations, product, and business stakeholders to deliver resilient fintech systems aligned with regulatory compliance, operational efficiency, and long-term platform scalability objectives.

Software Engineer at FuseBox Online (2025-07 – 2026-03)

• Designed and developed scalable web, cloud, and AI-driven systems supporting production workloads processing 100,000+ monthly payment transactions across integrated financial services and subscription workflows.
• Built and deployed a Next.js (SSR)-based payment platform on AWS serverless infrastructure, leveraging Lambda, API Gateway, DynamoDB, S3, and CloudWatch to support secure and scalable backend services handling real-time transactional traffic.
• Implemented Server-Side Rendering (SSR) and secure API routes in Next.js, including authentication flows using HTTP-only cookies to improve session security and protect sensitive payment operations.
• Integrated payment processing systems with Stripe, North.com, and financial APIs, supporting subscription billing, webhook processing, and reconciliation workflows across thousands of daily payment events.
• Developed and maintained the Senco Payment System, supporting 10,000+ active users and enabling end-to-end payment lifecycle management including billing, verification, and transaction tracking.
• Designed and deployed an AI-powered assistant using Amazon Bedrock, enabling automated financial insights, workflow support, and intelligent responses within the payment platform.
• Contributed to system security hardening aligned with OWASP Top 10 principles, with applications successfully passing external penetration testing conducted by third-party security assessors.
• Integrated fraud detection systems using SEON and FraudDeflect APIs, enabling real-time risk scoring and monitoring across thousands of payment events per day to detect anomalies and potential fraud.
• Collaborated during external security assessments with a third-party penetration testing provider (Redacted "Redshift"), supporting vulnerability remediation across authentication, API, and payment layers.
• Engineered real-time communication features using WebSockets and Twilio, supporting 10,000+ monthly video and voice call sessions as well as live messaging and event-driven communication flows.
• Implemented containerized deployment workflows using Docker and optimized frontend state management (Redux/RTK), improving application stability under high concurrent user load.
• Worked within Agile teams delivering 50+ production features and enhancements per quarter, including sprint planning, code reviews, and stakeholder collaboration.

Full Stack Software Developer at RapiDev (2023-12 – 2025-06)

• Built RESTful APIs in Node.js/Express to retrieve data from PostgreSQL and display it on React.js and Angular frontends.
• Analyzed and maintained a codebase of over 30,000 lines of code, fixing over 200 bugs per month (approximately 7 per day).
• Created React JSX pages using CSS and Material UI to improve UI/UX consistency and overall user experience.
• Applied performance optimization techniques to backend services, resulting in reduced load times and improved application efficiency.
• Implemented advanced search functionality across over 1 million transaction records using Elasticsearch for fast data filtering and analytics.
• Integrated Elasticsearch with Docker, PostgreSQL, and supporting services to enable scalable search and data retrieval across large datasets.
• Worked with databases containing 20+ tables and over 20,000 records, writing complex SQL queries using LEFT, RIGHT, and INNER JOIN operations (averaging 25 complex queries per month).
• Implemented secure data handling and storage practices for sensitive information, following database management best practices.
• Managed PostgreSQL databases including schema design, data modeling, and query optimization.
• Participated in Agile development processes including sprint planning, code reviews, and daily stand-ups to ensure timely delivery of features.
• Implemented role-based authentication and JWT-based session management for secure access control.
• Engaged in weekly scrum meetings with clients to track progress and refine requirements.

Information Systems & Communication Technology Officer at United Nations (UNECE) (2023-04 – 2023-10)

• System Development & Deployment: Played a critical role in the development and deployment of the UN e-TIR system, which processes over 20,000 transactions per minute across 70+ countries, ensuring global compliance and system reliability.
• Full-Stack Development (Spring Boot, React.js, PostgreSQL): Developed backend services using Spring Boot and PostgreSQL, integrated with React.js frontends. Fixed over 200 bugs, created complex algorithms, and built responsive UI components aligned with modern UX/UI standards.
• Database Management & Search Systems: Wrote complex SQL queries across 20+ tables, managing over 1 million transactions and 30,000+ users. Integrated Elasticsearch to provide real-time search capabilities with sub-5 second response times.
• Data Visualization & Messaging Infrastructure: Built live operational dashboards using Kibana to visualize over 200,000 real-time transactions. Designed and maintained messaging workflows using Apache ActiveMQ to support over 30,000 daily user messages.
• Performance Testing, Containerization & CI/CD: Conducted performance testing using JMeter, leveraged Docker for environment consistency, and collaborated on CI/CD pipelines using Bamboo, Git.