I am Wilfredo Valena, a highly skilled Full Stack Software Engineer with versatile experience across diverse industries. I excel at delivering scalable, secure, and high-performance solutions, from legacy modernization to cloud-native architectures, and I enjoy collaborating with cross-functional teams to drive value. I am committed to continuous learning and staying current with emerging technologies. Over the years, I have led architectural improvements, driven delivery, and mentored teams while migrating legacy systems to modern stacks, including C#/.NET, Java, ReactJS/NextJS, and modern cloud platforms.

Wilfredo Vaena

I am Wilfredo Valena, a highly skilled Full Stack Software Engineer with versatile experience across diverse industries. I excel at delivering scalable, secure, and high-performance solutions, from legacy modernization to cloud-native architectures, and I enjoy collaborating with cross-functional teams to drive value. I am committed to continuous learning and staying current with emerging technologies. Over the years, I have led architectural improvements, driven delivery, and mentored teams while migrating legacy systems to modern stacks, including C#/.NET, Java, ReactJS/NextJS, and modern cloud platforms.

Available to hire

I am Wilfredo Valena, a highly skilled Full Stack Software Engineer with versatile experience across diverse industries. I excel at delivering scalable, secure, and high-performance solutions, from legacy modernization to cloud-native architectures, and I enjoy collaborating with cross-functional teams to drive value.

I am committed to continuous learning and staying current with emerging technologies. Over the years, I have led architectural improvements, driven delivery, and mentored teams while migrating legacy systems to modern stacks, including C#/.NET, Java, ReactJS/NextJS, and modern cloud platforms.

See more

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
See more

Language

English
Fluent

Work Experience

Senior Software Engineer at Solnet Solutions Limited
May 31, 2024 - October 13, 2025
Designed and implemented front-end and back-end solutions with focus on technical quality, performance, scalability, security, and testing; led upgrades of legacy systems, integrated modern APIs, and migrated databases; supported production systems and contributed to architectural decisions.
Developer at Today Software Limited
June 30, 2019 - October 13, 2025
Maintained and enhanced commercial and custom software; developed POS integrations and multi-store eCommerce interfaces; created plugins for major payment gateways and integrated with major eCommerce platforms.
COBOL/C# Developer at Onyx Gaming, Ltd
March 1, 2025 - September 1, 2025
• Migrating legacy RM/COBOL systems to modern C# .NET architecture • Maintaining and enhancing backend COBOL programs and frontend ReactJS/NextJS systems with Cypress E2E Testing
IT Software Development Services at Self-Employed
October 1, 2025 - Present
Software Development Services
Telecom NZ (Gen-i) at Solutions Architect
May 1, 2011 - May 1, 2013
• Led architectural improvements and integration strategies • Designed and implemented enterprise-grade server and network solutions Key Projects: • Advanced Quoting Tool (Ext-JS) • NZDF PO XML Validation (ASP.NET C#) • Ministry of Education Web Services

Education

Bachelor of Arts – Economics at Adamson University
April 1, 1978 - October 1, 1984

Qualifications

SnowPro Core Certification - Snowflake
January 11, 2030 - October 13, 2025
AWS Certified Cloud Practitioner - Amazon Web Services (AWS)
January 11, 2030 - October 13, 2025
Agile Project and Delivery Management
April 1, 2024 - April 1, 2026

Industry Experience

Software & Internet, Professional Services, Telecommunications, Media & Entertainment, Financial Services, Healthcare, Energy & Utilities, Retail, Government, Education, Gaming, Manufacturing
    paper Medical Records System

    This application was designed to store, manage, and retrieve patient health information securely and efficiently. It replaces traditional paper-based records and supports clinical workflows, administrative tasks, and regulatory compliance in healthcare settings.

    -Core Modules and Features:

    Patient Information Management
    Stores demographic data: name, age, gender, contact details, insurance information.
    Maintains medical history, allergies, immunizations, and family health background.

    Clinical Documentation
    Records diagnoses, treatment plans, progress notes, and physician observations.
    Supports structured templates for different specialties and visit types.
    Enables voice-to-text or handwriting recognition for faster input.

    Medication and Prescription Management
    Tracks prescribed medications, dosages, and refill history.
    Integrates with e-prescription systems and pharmacies.
    Flags potential drug interactions or allergies.

    Lab and Diagnostic Integration
    Interfaces with laboratory and imaging systems to receive test results.
    Stores and displays lab reports, X-rays, MRIs, and other diagnostics.
    Enables trend analysis and historical comparisons.

    Billing and Insurance
    Generates invoices and manages payments.
    Handles insurance claims, coding (ICD, CPT), and reimbursements.
    Integrates with financial and accounting systems.

    Security and Compliance
    Implements role-based access control and data encryption.
    Complies with healthcare regulations (e.g., HIPAA, GDPR, Australian Privacy Principles).
    Maintains audit logs and backup systems.

    Reporting and Analytics
    Provides dashboards for clinical performance, patient outcomes, and operational metrics.
    Supports population health management and predictive analytics.
    Generates reports for regulatory bodies and internal audits.

    paper Software Licensing Management - Telecom

    A specialized solution designed to monitor, control, and optimize the use of software licenses within an organization. It ensures compliance with licensing agreements, prevents unauthorized usage, and helps manage costs associated with software procurement and renewal.

    Core Functions

    License Inventory Management
    Maintains a centralized repository of all software licenses.
    Tracks license types (e.g., perpetual, subscription, trial, open-source).
    Records license keys, purchase dates, expiration dates, and vendor details.

    Usage Monitoring
    Monitors software installations and usage across devices and users.
    Detects overuse, underuse, or unauthorized installations.
    Provides real-time visibility into license consumption.

    Compliance and Auditing
    Ensures adherence to vendor licensing terms and legal requirements.
    Generates audit-ready reports for internal reviews or external inspections.
    Flags potential compliance risks and violations.

    Renewal and Expiry Alerts
    Sends automated notifications for upcoming renewals or expirations.
    Helps avoid service disruptions and penalties due to expired licenses.
    Supports auto-renewal workflows where applicable.

    Procurement and Budgeting
    Assists in planning software purchases based on usage trends.
    Tracks costs and helps optimize license allocation to reduce waste.
    Integrates with financial systems for budgeting and expense tracking.

    Access Control and Role Management
    Restricts license access based on user roles and permissions.
    Supports multi-user environments with tiered access levels.
    Logs user activity for accountability and security.

    Reporting and Analytics
    Provides dashboards and reports on license utilization, cost efficiency, and compliance status.
    Offers insights for strategic decision-making and vendor negotiations.

    Multi-Vendor and Multi-Platform Support
    Manages licenses across various vendors (e.g., Microsoft, Adobe, Oracle).

    Security and Data Protection
    Encrypts sensitive license data and enforces secure access protocols.
    Maintains audit trails and backup systems for data integrity.

    paper Hotel Management System

    Comprehensive software solution that automates and streamlines the hotel’s operation. It integrates reservations, front desk operations, housekeeping, billing, and customer relationship management.

    Modules and Features:

    Reservation Management
    Handles online and offline bookings.
    Supports real-time room availability and dynamic pricing.
    Integrates with third-party booking platforms (e.g., Booking.com, Expedia).

    Front Desk Operations
    Manages guest check-in/check-out processes.
    Assigns rooms and tracks occupancy status.
    Handles walk-ins, cancellations, and modifications.

    Room and Rate Management
    Defines room types, amenities, and pricing structures.
    Supports seasonal pricing, discounts, and packages.
    Tracks room maintenance and availability.

    Housekeeping Management
    Schedules room cleaning and maintenance tasks.
    Tracks room status (clean, dirty, out-of-service).
    Allows coordination between front desk and housekeeping staff.

    Billing and Invoicing
    Generates invoices for room charges, services, and taxes.
    Supports multiple payment methods (cash, card, digital wallets).
    Integrates with accounting systems for financial reporting.

    Customer Relationship Management (CRM)
    Stores guest profiles, preferences, and history.
    Enables loyalty programs, personalized offers, and feedback collection.
    Facilitates targeted marketing and communication.

    Inventory and Procurement
    Manages stock levels of supplies (e.g., toiletries, linens, minibar items).
    Tracks vendor orders and deliveries.
    Supports budgeting and cost control.

    Reporting and Analytics
    Provides dashboards and reports on occupancy, revenue, guest demographics, and staff performance.
    Helps in forecasting demand and optimizing operations.

    Multi-Property Management (for hotel chains)
    Centralized control over multiple locations.
    Consolidated reporting and resource sharing.

    Integration and Accessibility
    Connects with POS systems, payment gateways, and travel agencies.
    Offers cloud-based access for remote management.

    Security and Compliance
    Role-based access control and data encryption.
    Compliance with local tax laws, GDPR, and hospitality standards.
    Audit trails and backup systems.

    paper Point of Sale and Inventory Control System

    The Point of Sale and Inventory Control System is an integrated software and hardware solution designed to streamline retail operations by managing sales transactions and tracking inventory in real time. It serves as the central hub for processing purchases, managing stock levels, and generating business insights.

    Components:

    Sales Processing (POS)
    Facilitates real-time transaction processing at retail counters.
    Supports multiple payment methods: cash, credit/debit cards, mobile payments, and digital wallets.
    Generates receipts (digital or printed) and updates inventory automatically upon sale.

    Inventory Management
    Tracks stock levels across multiple locations or warehouses.
    Supports barcode scanning, SKU tracking, and batch/serial number management.
    Alerts for low stock levels and automates reordering processes.

    Product Management
    Maintains a centralized database of products with details like name, SKU, price, category, supplier, and stock quantity.
    Allows for bulk import/export of product data.
    Supports product variants (size, color, etc.).

    Customer Management
    Captures customer information and purchase history.
    Enables loyalty programs, discounts, and promotions.
    Supports customer segmentation for targeted marketing.

    Employee Management
    Tracks employee sales performance and working hours.
    Manages user roles and access permissions.
    Supports shift scheduling and attendance tracking.

    Reporting and Analytics
    Provides real-time dashboards and customizable reports on sales, inventory turnover, profit margins, and customer behavior.
    Helps identify best-selling products, peak sales periods, and underperforming items.

    Multi-Store and Multi-Channel Support
    Centralized control over multiple store locations.
    Integrates with e-commerce platforms for unified inventory and sales tracking.

    Security and Compliance
    Role-based access control to protect sensitive data.
    Secure payment processing compliant with PCI-DSS standards.
    Maintains audit trails for accountability.

    User Interface and Accessibility
    Intuitive, user-friendly interface for quick training and adoption.
    Cloud-based or on-premise deployment options.

    paper Personnel and Payroll Information System

    Employee Information Management
    Stores personal details, job titles, departments, and employment status.
    Tracks salary structure, benefits, and tax information.

    Salary Calculation
    Computes gross and net pay based on working hours, overtime, bonuses, and deductions.
    Supports multiple pay structures (hourly, salaried, contract).

    Tax and Compliance Handling
    Automatically calculates and deducts income tax, social security, and other statutory contributions.
    Generates reports for government filings and audits.

    Leave and Attendance Integration
    Syncs with attendance systems to adjust pay based on leaves, absences, or late arrivals.
    Supports paid and unpaid leave policies.

    Payslip Generation
    Creates detailed payslips for each pay period.
    Allows digital distribution via email or employee portals.

    Payment Processing
    Integrates with banking systems for direct deposit.
    Supports multiple payment methods (bank transfer, cheque, mobile wallets).

    Reporting and Analytics
    Provides dashboards and reports on payroll expenses, trends, and forecasts.
    Enables export to format like Excel, PDF, or CSV.

    Security and Access Control
    Ensures data privacy with role-based access.
    Encrypts sensitive information and maintains audit trails.

    paper Commission System for Sun Life of Canada

    This application computes and generates commissions for insurance agents