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Yii application development

Hire Yii developers to build and scale your web applications.

Build, extend, and maintain reliable web applications with experienced Yii developers. From custom business platforms and API integrations to long-running Yii 1.1 and Yii2 systems, IDOWS Apex helps businesses deliver maintainable software built for long-term growth.

  • Custom Yii application development
  • Yii API and backend development
  • Existing application enhancement
  • Dedicated Yii developers

Let's discuss your Yii project

Tell us a little about your requirements and our team will get back to you.

We only use your details to respond to your enquiry. See our privacy policy. Protected by reCAPTCHA; the Google Privacy Policy and Terms apply.

Yii
PHP 8
Gii
RBAC
Composer
MySQL
PostgreSQL
Redis
REST APIs
Codeception
Yii
PHP 8
Gii
RBAC
Composer
MySQL
PostgreSQL
Redis
REST APIs
Codeception

IDOWS Apex Yii developers, at a glance

IDOWS Apex is a software engineering company in Lahore, Pakistan that provides Yii developers on a project, dedicated-developer or dedicated-team basis. They build new Yii2 applications, REST APIs and admin systems, maintain long-running Yii 1.1 and Yii2 codebases, and plan staged modernization. Clients interview each developer before they join.

Versions
Yii 1.1 · Yii2
Language
PHP 8+
Engagement models
3
Interview first
Always

Why hire our Yii developers

Yii developers who understand complex applications

Developers working together at laptops around a shared table

Custom application development

Yii2 applications on the basic or advanced templates, structured into modules.

Experience with existing Yii code

We check the template, RBAC storage, customized Gii code and abandoned extensions before adding features.

Maintainable architecture

Behaviors and events instead of edits to core classes, and generated code extended rather than changed.

Performance and reliability

Eager loading, schema and query caching, and Codeception tests on the paths that matter.

Yii development services

What we build and maintain with Yii

Not sure which fits? Ask us
  • Custom Yii Applications

    Business platforms and custom web systems on Yii2's basic or advanced application templates.

  • Yii API and Backend Development

    REST APIs with resource routing, pagination and token authentication, sharing models with your web app.

  • Existing Application Enhancement

    New features, refactoring and fixes on inherited Yii 1.1 and Yii2 codebases.

  • Admin Panels and Back-Office Systems

    Operational screens on ActiveRecord and Gii-generated CRUD, extended so they survive schema changes.

  • Database Engineering

    ActiveRecord relations and queries on MySQL or PostgreSQL, with Redis caching.

  • Performance and Reliability

    Profiling with the debug toolbar, eager loading, query and fragment caching, and Codeception tests.

  • Role-Based Access Control

    Roles, permissions and rules with authManager, enforced through access control filters.

  • Legacy Yii Modernization

    PHP upgrades, compatibility assessment and staged migration planning.

Yii technology stack

The Yii stack, layer by layer

Each project uses only the layers it needs, on the versions it runs today.

  • Testing and qualityCodeceptionYii2 debug toolbar
  • CachingRedisMemcachedschemaquery and fragment caching
  • DatabasesMySQLPostgreSQL
  • PHP and dependenciesPHPComposer
  • Yii frameworkYii2Yii 1.1GiiRBAC (authManager)REST module

Yii 1.1, Yii2 and beyond

Yii development across versions

  • Yii 1.1Maintain and enhance

    Keep long-running Yii 1.1 systems stable, secure and extended with new features. Where a rewrite is not justified, that is often the better option.

  • Yii2Build, extend and integrate

    New applications, modules, REST APIs and RBAC on the basic or advanced templates, alongside existing Yii2 code.

  • Modern PHPCompatibility

    An assessment of the PHP version, Composer lock state, extensions and tests, then a move onto a supported PHP version.

  • ModernizationPlan the next step

    Incremental refactoring, or a staged move to Yii3 or Laravel when codebase size, rate of change and cost make it worth it.

Yii project process

How Yii Projects Run,
From Discovery to Support

Five stages from the first conversation to the software running in production.

  1. PHASE 01Technical AssessmentUnderstand the existing application, requirements, architecture and constraints.
  2. PHASE 02Requirements and PlanningDefine scope, priorities, architecture and delivery milestones.
  3. PHASE 03DevelopmentBuild features and integrations iteratively, with code review.
  4. PHASE 04Quality AssuranceCheck functionality, reliability, compatibility and quality.
  5. PHASE 05Deployment and SupportRelease and provide the maintenance and support you agree on.

Engagement models

Three ways to work with our Yii developers

Pick the model that fits how much of the delivery you want to manage.

We deliver

Project-based

Share your requirements and we build and deliver the application with our own Yii team.

Best for: A defined outcome, without managing developers yourself.

Start a project
You lead

Dedicated developers

Yii developers join your existing team, tools and standups. You lead the work.

Best for: Ongoing development where you want direct control and flexible headcount.

Add developers
Full team

Dedicated team

A complete team around your product: development, QA and technical support.

Best for: Long-term products that need several roles working together.

Build a team

When to hire Yii developers

Your situation → our first move

  • Long-running business platforms
    Our first move: Systems that have run on Yii for years and still carry the business.
  • Admin panels and back-office systems
    Our first move: Internal tools for operations, data entry and reporting.
  • REST APIs for mobile applications
    Our first move: Backends that serve mobile apps from the same models as the web app.
  • Yii 1.1 to Yii2 migrations
    Our first move: Staged moves between framework generations.
  • Security hardening of older Yii apps
    Our first move: Supported PHP versions, updated dependencies and safer configuration.
  • Feature work on inherited codebases
    Our first move: New functionality on code your current team did not write.

Yii modernization

Older Yii, upgraded while it keeps running

Developers working at monitors displaying code in an engineering office
  1. Assess
  2. Tests
  3. PHP upgrade
  4. Refactor
  5. Release
BeforeYii 1.1
// SQL built from input
$row = Yii::app()->db
    ->createCommand("SELECT * FROM user WHERE id = $id")
    ->queryRow();
AfterYii2
// ActiveRecord with a bound parameter
$user = User::findOne($id);
Illustrative Yii code (placeholder names): SQL built from input → ActiveRecord with a bound parameter.

FAQ

Yii developer FAQ

Ask something else

There is no single rate for Yii developers. Cost depends on the seniority you need, the engagement model you choose (adding developers to your team, a dedicated team, or a fixed-price project), how long the engagement runs and the scope of the work. For Yii work, the biggest drivers are whether the application is on Yii 1.1 or Yii2, how far Gii-generated and third-party extension code has been modified, the state of test coverage, and whether a migration to Yii3 or Laravel is in scope. Share your requirements and we will come back with a quote for your situation.

Tell us what you need. Interview the engineers.

  1. Share your project or team gap
  2. We recommend Yii engineers you can interview, or scope the project with you
  3. You interview the engineers before anyone starts

We only use your details to respond to your enquiry. See our privacy policy. Protected by reCAPTCHA; the Google Privacy Policy and Terms apply.

Yii is a trademark of its respective owner. IDOWS Apex is not affiliated with or endorsed by Yii Software.