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Matthew Nyirenda
From Botswana 03:46 PM (GMT+02:00)
$25/hr or $48,000/yr

Active over a week ago


Member since May 2026

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Senior AI and Software Engineer

Software Engineer
Available for hire
Years of experience
7+ years
Experience level
Senior
Available for
Full-time, Contract, Freelance
Available from
23 Jun 2026

I am a software engineer driven by the intersection of high-scale infrastructure and the evolving AI landscape. What makes me unique is my full-stack approach to AI. I don’t just wrap APIs; I build the underlying systems that make them viable for production. My experience spans over seven years of developing scalable backend architectures, payment orchestrations, and media pipelines that directly impact revenue.

In my recent roles, I’ve specialized in optimizing vector search retrieval (RAG) and managing complex metadata workflows for high-volume asset repositories. I thrive in environments where performance is a feature, not an afterthought.

I am currently looking for a Senior Software or AI Engineer role where I can bridge the gap between experimental AI and robust, production-grade systems. I’m most excited by teams that prioritize developer velocity and are tackling meaningful scalability challenges in the AI space.

Languages

Employment History

Senior AI Engineer at CyberAlliance 2024 - 2026
• Engineered a Cybersecurity AI platform providing real-time threat intelligence, secure code generation, risk assessment, and vulnerability scanning — became the company's flagship product and drove an 80% increase in revenue. • Designed and implemented a real-time data ingestion layer using AWS Kinesis, processing millions of events daily to feed the cybersecurity AI’s threat-detection engine. • Built a Cyber Aptitude and Talent Assessment system that improved the efficiency of hiring cybersecurity professionals by 40%, reducing time-to-hire and improving candidate quality for enterprise clients. • Led a cross-functional team of 8 engineers (4 frontend, 4 backend/AI), owning end-to-end delivery of multiple enterprise applications while managing stakeholder relationships and aligning on requirements at the executive level. • Introduced and implemented formal SDLC processes and tooling across the engineering organization, measurably improving team performance, code quality, and delivery predictability. • Designed and implemented a fully automated ETL pipeline synchronizing critical business data from PostgreSQL to Salesforce in near real time via AWS and Azure as a Multi-Cloud Architecture, reducing sync time by 70% through incremental updates and smart deduplication logic. • Developed Salesforce Apex triggers and REST endpoints to handle high-volume data ingestion and error handling, enabling real-time dashboards and cross-team reporting that improved decision-making speed across the business. • Developed comprehensive monitoring dashboards using CloudWatch and ELK Stack to provide real-time visibility into pipeline health, data latency, and ingestion bottlenecks.
Senior Software Engineer at National Data Solutions 2024 - 2024
• Built a resilient RPA bot to bidirectionally synchronize patient, appointment, and bi ling data between TDO PMS and Dentrix — automating conflict resolution, enforcing data validation, and reducing manual data entry by 90%, saving hundreds of staff hours every month. • Developed an automated claims processing system to parse and reconcile X12 835 remittance advice files, integrating with insurer APIs to fetch claim data, process payments, and update billing systems — reducing claim processing time from 3 days to hours and accelerating reimbursements. • Built denial management workflows routing rejected claims for timely review and resolution, minimizing revenue leakage for the organization. • Established a centralized Data Lake on Azure Data Lake Storage (ADLS), implementing automated partitioning and lifecycle policies to optimize query performance and storage costs. • Developed an asynchronous OCR tool that accessed invoices, extracted structured data into a relational database, and exported it directly into a medical patient management system — eliminating manual data re-entry across departments. • Implemented monitoring dashboards and alerting infrastructure to track bot performance and uptime, ensuring continuous visibility into automation health and enabling fast incident response. • Engineered robust Azure DevOps YAML pipelines for automated building, testing, and multi-stage deployment, reducing manual release efforts by 90% and maintaining 99.9% uptime.
Senior Software Engineer at Atom Media 2023 - 2024
• Led a cross-functional team of developers, designers, and testers in the successful delivery of multiple web applications, resulting in a 30% increase in customer engagement and a 20% improvement in user satisfaction. • Architected and deployed a reporting and billing system using Laravel and Django for an international school, and deployed the web application to AWS — reducing hosting costs by 50% while improving application reliability and scalability. • Engineered and delivered a CRM for a government organization, improving the efficiency and success rate of online applications for citizens — and identified and fixed a bug in the DPO Pay open source API, submitting a successful pull l request to their public GitHub repository. • Integrated payment gateways into multiple web applications and customized WHMCS to enable fully automated billing transactions across client platforms. • Improved project delivery speed by 60% by implementing Jira and Bitrix24 for SCRUM ceremonies, sprint planning, and daily standups — bringing structure and accountability to the full delivery lifecycle. • Built and maintained performant, responsive frontend interfaces using React.js — delivering a 40% increase in user engagement and a 25% reduction in bounce rates — alongside backend services and APIs using Node.js, FastAPI, and Express.js. • Mentored and coached junior developers, fostering a team culture of collaboration, continuous learning, and engineering best practices. • Conducted bi-weekly analytics reviews with clients and maintained ongoing monitoring of software performance to proactively identify and address issues. • Seamlessly integrated Jira, Bitbucket, GitHub, AWS, and CircleCI into a unified development ecosystem, streamlining version control, cloud deployment, and continuous integration across a l projects.
Systems Engineer at Global Imaging USA 2021 - 2023
• Wrote a Python and SQL automation script enabling medical software to automatically restart critical services and back up patient data on schedule, improving system efficiency and data protection. • Negotiated pricing, contracts, and service fees for medical IT goods and services — reducing procurement costs by 30% while maintaining and enhancing the quality and continuity of services. • Developed a comprehensive IT ticketing system using Jira and a custom Forge app, with a RESTful API layer providing access to Dropbox, Google Drive, DOCX, PDF, and CSV documents — and built Tableau dashboards to visualize ticket and asset data across the organization. • Designed and maintained a Confluence-based knowledge base for the IT team, enabling self-service troubleshooting, and built a dedicated IT help center portal for external clients. • Successfully integrated Jira with Salesforce through custom solution development and cross-functional collaboration — enhancing project management and customer relationship processes and providing a unified view of client and project data • Developed an internal CRM using FastAPI and Vue.js for the technical support team, centralizing customer information, communication history, and case management in a single platform. • Provided on-site installation and configuration of medical equipment within office networks and systems, and delivered hands-on training for clinical staff on the operation of machine software. • Configured and maintained industry-standard software such as Dentrix, Eaglesoft, Open Dental, ensuring seamless synchronization between patient scheduling and clinical records. • Supported digital imaging suites (e.g., Dexis, Schick, Carestream, VixWin), troubleshooting driver conflicts and ensuring high-resolution radiographs were correctly linked to patient charts via DICOM standards. • Managed and resolved bridge issues between PMS and 3rd-party imaging software to eliminate data entry duplication and reduce clinical errors. • Calibrated and repaired specialized hardware, including intraoral cameras, digital sensors, panoramic X-ray machines, and 3D CBCT scanners. • Implemented VLANs to isolate medical equipment (e.g., X-ray machines) from the general office guest Wi-Fi, enhancing both security and network performance.
Full Stack Engineer at rubiem Group 2020 - 2020
• Designed and developed a web application for a major telecommunications company using .NET Core, Vue.js, and MySQL — handling time-sensitive content updates and database upgrades across AWS and Azure environments. • Developed RESTful APIs for banking and retail systems, ensuring robust data exchange, error handling, and security across integrations. • Built WhatsApp automation bots using Twilio and Clickatell platforms via Postman and GraphQL, enabling customer-facing messaging workflows for business clients. • Planned, wrote, and debugged web applications and software end-to-end with full ownership of quality, performance, and deployment.
IS Operations Analyst at Steward Bank 2020 - 2020
• Played a key role in implementing the new core banking system (Temenos T24), handling system configurations using jBASE, INFO BASIC, Java, and Red Hat Linux, and managing integration with al existing banking systems. • Designed and built a UAT system using Vue.js and Microsoft Excel VBA for internal staff, enabling structured quality assurance testing of software products prior to production release. • Worked directly with supervisors and management to design and implement a new account-opening system workflow in Java and Vue.js, improving the customer onboarding experience. • Automated daily MongoDB database backups and storage to Azure, and implemented automated alerting for system errors across MongoDB and Microsoft SQL Server environments — improving operational resilience. • Troubleshooting and resolving end-user issues across ICT platforms using Red Hat Linux and Azure, and actively participating in disaster recovery exercises and change request management. • Conducted regular system reviews and generated performance and efficiency reports for management, providing actionable insights into platform health and improvement areas.
Freelance Developer at Upwork and Fiverr 2019 - 2020
• Built an end-to-end BI infrastructure using Java and Apache Airflow, converting PL/SQL packages to Java web services and integrating a sales CRM with a DataOps solution to deliver real-time KPI dashboards for client leadership teams. • Developed a TypeScript and React.js interface enabling credit card transactions to interact with multiple banking systems, and created a PayPal integration for an online transaction management platform. • Built app integrations with REST, SOAP, and third-party APIs including Google Maps, social media authentication, and payment processors — across multiple client projects. • Delivered custom monthly and yearly sales reporting from client databases, and participated in client discovery sessions to clarify requirements and scope. • Applied distributed computing, real-time data processing, ML, and AI concepts to solve complex dataset challenges for clients across multiple industries. • Defined and tested implementation and installation scenarios for WebSphere as part of enterprise middleware projects.

Education

Bachelor (Hons) in Information Systems at Midlands State University 2015 - 2019