Waterman General Agencies Ltd
Waterman drills boreholes and installs pumps and water accessories. NexValue supports the business behind the field work, from the books to the marketing.
FinanceAccountingTaxAudit supportMarketingAdvice
Engineering Intelligence.Empowering Growth.
NexValue Technologies turns data into intelligence, intelligence into decisions, and decisions into measurable business impact.
Finance expertise meets machine learning
Led by Kevin Juma, a data scientist and machine learning engineer with a background in finance and bancassurance. We build GPU-accelerated ML pipelines, recommendation systems and predictive analytics, end to end: data preparation, feature engineering, training, optimisation and deployment.
Based in Kisumu, Kenya, and open to remote work worldwide.
PythonPyTorchScikit-learnSQLPower BIJupyterGoogle CloudCredit riskPredictive analytics
0.89 → 0.85Validation RMSE on a GPU-accelerated PyTorch recommendation system, improved through feature engineering, tuning and ensembling.
What you can hire us for
Four focused services, each delivered as a working system.
Recommendation systems
Increase product adoption with matrix factorization and collaborative filtering, tuned on your customer data.
Discuss on WhatsAppPower BI dashboards
KPI and portfolio dashboards that show revenue, risk and performance in one place.
Discuss on WhatsAppAI and workflow automation
Python and SQL automation that replaces manual reporting, plus APIs that put models into production.
Discuss on WhatsAppFinance and credit analytics
Credit risk analysis, underwriting insight and financial modelling from a team with banking experience.
Discuss on WhatsAppClients
We also run the business side for companies that do technical work.
What we can do for your business
Ask for one item or the whole set. Each starts with a short review of how you work today.
Finance
- Budgets and cash-flow forecasts
- Costing and pricing for jobs and products
- Credit control and debtor follow-up
- Funding and loan application support
Accounting
- Bookkeeping and monthly management accounts
- Bank and supplier reconciliations
- Stock and asset records
- Payroll records and expense tracking
Tax
- Tax computations and return preparation
- VAT, PAYE and other filing schedules
- Record-keeping that meets tax requirements
- Reminders so deadlines are not missed
Audit support
- Preparing records and schedules for your auditor
- Internal control reviews
- Finding errors and gaps before year end
Marketing
- Brand, website and social media setup
- Quotes, brochures and sales material
- Lead tracking and customer follow-up
Advice and data
- Business strategy and growth planning
- Dashboards for sales, costs and profit
- Reports automated with Python and SQL
Statutory audits are carried out by a registered auditor. We prepare your records and work alongside yours.
Projects
From recommendation engines to healthcare product design. Filter by type. More code on GitHub and Kaggle.
Customer Recommendation System
A recommendation engine for a retail portfolio, built to increase product adoption. Matrix factorization and collaborative filtering models, with tuned embeddings and regularization to cut RMSE.
Python · NumPy · Scikit-learn · Matplotlib · Power BIPersona AI
An AI matching engine served through an API, containerised with Docker and deployed on Google Cloud Run.
FastAPI · Docker · Cloud RunNEDP Digital Membership
A cloud-hosted membership platform with online registration and a USSD option for members without smartphones.
Node.js · Cloud Run · USSDMaji Ndogo: water access and crime
An integrated Power BI project visualising water access and crime in Maji Ndogo.
Power BIMaji Ndogo: queue analysis
A Power BI study of queues at water sources, from the same integrated project.
Power BISQL Join Functions
Combining tables with SQL joins to answer multi-table questions.
SQLSQL Subqueries in Jupyter
Nested queries run and documented inside Jupyter notebooks.
SQL · JupyterJupyter Virtual Environments
Reproducible notebook workflows with isolated Anaconda environments.
Jupyter · AnacondaAfyaPro App: pitch deck
A team-built Figma wireframe for an app that streamlines care, improves patient outcomes and reduces hospital congestion, using AI and real-time data for personalised triage.
Figma · UX/UI · TeamworkAfyaPro App: pitch video
The Vumbua Tech Masters pitch. Check real-time hospital traffic, find nearby facilities with shorter queues, and get remote consultations for non-critical cases.
Video editing · Canva · User researchFounder background
Kevin Juma: years in credit, insurance and banking, now applied to AI and business systems.
2026 – present
AI and Machine Learning Engineer, independent consultant
End-to-end intelligent data solutions: ingestion, EDA, feature engineering, training, evaluation and deployment-ready pipelines.
June 2023 – present
Data Analyst, Finance and Bancassurance Specialist
KPI dashboards, risk and underwriting analysis, and reporting automation with Python and SQL.
July 2021 – January 2023
Bancassurance Officer, National Bank of Kenya
Compliance reports and reconciliation of insurance-linked financials.
December 2018 – June 2021
Branch Manager, Kisumu SME, Platinum Credit Ltd
Loan operations, fee processing and regional portfolio management.
Let's build something
Tell us the problem. We will reply with a plan and a clear next step.
Prefer another way?
Message NexValue on WhatsApp Call 0723 897 487 or email systemsvaluetech@gmail.com