Skip to main content
All case studies

Full-Stack Platform

Onqoba

Secure Web & Mobile Systems for International Operations

Web and mobile systems with secure APIs, legacy modernization, and distributed-team delivery for a France-based technology client.

Industry

Technology Services

Region

France

Engagement

Long-Term Engineering Partnership

Multi-stack · Secure APIs · Legacy modernization

Product interface engineered by Izone Technologies

Project overview

What we built

Ongoing engineering across web and mobile surfaces—modernizing legacy modules, hardening APIs, and improving reliability for international operations.

Who it serves

Internal teams, partners, and end users depending on stable business applications.

Business challenge

Technical debt and fragmented services slowed releases. The client needed senior engineers who could refactor safely while continuing to ship features.

Why it mattered

Operational continuity in France and partner markets required dependable releases and security-conscious architecture.

Challenge & objectives

Problems we solved

Technical complexity, product goals, and delivery constraints addressed by senior engineers.

  • Modernize legacy modules without business disruption
  • Standardize API security and documentation
  • Improve mobile and web parity for core workflows
  • Establish predictable release cadence with remote collaboration

Legacy constraints

Incremental refactors while production systems stay online.

Security expectations

Authentication, authorization, and data handling across services.

Cross-platform delivery

Consistent behavior between mobile and web clients.

Distributed collaboration

Alignment across time zones with clear engineering standards.

Technical execution

How we engineered it

Architecture, implementation, and delivery decisions—built for production, not demos.

API modernization

RESTful services with validation, versioning, and observability hooks.

  • Auth hardening
  • Contract-first endpoints
  • Regression-safe changes

Application layers

Refactored frontends with shared patterns and improved state management.

  • Component reuse
  • Error handling
  • Performance profiling

Delivery discipline

Code review standards, staging verification, and documentation for handoffs.

  • CI checks
  • Release notes
  • Technical debt tracking
Engineering architecture

Stack & system design

How we structured frontend, backend, infrastructure, and integrations for production scale.

Engineering architecture

Multi-stack · Secure APIs · Legacy modernization

Long-term partnership modernizing legacy modules while shipping secure web and mobile surfaces with documented APIs and disciplined release practices.

France · Multi-year partnership
  • Incremental refactors without disrupting production operations
  • Hardened authentication and API contracts across services
  • Cross-platform parity between web and mobile clients

Product surfaces & client experience

Vue.jsMobile-friendly webTypeScript

Web & mobile

Clients

API layer

REST services

Core systems

Modernized modules

Legacy modernizationSecure API deliveryCross-platform engineeringDistributed team collaboration
Results

Outcomes & impact

Measurable value for operators, teams, and business stakeholders.

Safer

Releases

Incremental modernization reduced risk

Stronger

API layer

Documented, secured endpoints

Aligned

Cross-platform

More consistent user experiences

Trusted

Partnership

Multi-year remote collaboration

Building something similar?

Partner with senior engineers and dedicated teams from Izone Technologies. We ship SaaS, AI, and enterprise platforms for international clients.

View more work