Free AI Readiness Assessment — we map your automation opportunities in 60 minutes, no obligation.
⚡ 23 Years of PHP Engineering
Hire CodeIgniter Developers

CodeIgniter Developers Who Actually Know the Framework.

Not generalist PHP developers who've looked at CodeIgniter once. We have engineers who have built production CodeIgniter applications for 15+ years — CI3 maintenance, CI4 builds, REST API development, SaaS products, and full legacy migrations. ISO 27001 certified. NDA from day one.

🔒 NDA before anything is shared 🛡️ ISO 27001 certified ⏱️ Starts in 5–7 days 🌍 US · UK · AU time zones
Developer Profile · Available Now Available
CI
Senior CodeIgniter Developer
PHP · CodeIgniter 3 & 4 · REST APIs
9+ years CodeIgniter experience
CodeIgniter 4 PHP 8.x REST API MySQL Laravel Vue.js Docker CI/CD
Availability
Full-time
Start Date
Within 1 week
Time Zone
IST / Flexible
NDA
Day One ✓
Proficiency Stack
CodeIgniter 4
97%
PHP 8 / OOP
94%
REST API Design
92%
MySQL / Query Opt.
90%
Vue.js / React
78%
— Why CodeIgniter

Why businesses still choose CodeIgniter

CodeIgniter isn't legacy — it's lean. For teams who need fast delivery, low server overhead, and a framework that doesn't impose architectural decisions on them, CI4 remains one of the best PHP choices available.

🚀

Fastest cold start of any PHP framework

CodeIgniter 4 boots in milliseconds. There's no heavy IoC container to initialise, no auto-discovery pass, no configuration compilation step. For high-traffic APIs and applications where latency matters, that difference shows up in production.
🎯

You control the architecture

CI gives you MVC out of the box and then steps back. There's no opinionated folder structure forcing you into decisions that don't fit your domain. Developers familiar with the codebase can pick it up without learning a framework-specific way of doing everything.
📦

Small footprint, low hosting cost

A full CodeIgniter 4 installation is under 3MB. No enterprise-scale server requirements. This matters for applications hosted on budget infrastructure, for shared hosting environments, and for projects where server cost is a real constraint.
📖

The documentation is genuinely good

CodeIgniter has some of the clearest official documentation in the PHP ecosystem. Onboarding new developers, handing over to an internal team, or auditing code written by someone else — the learning curve stays manageable throughout the application's lifetime.
🔌

Works with what you already have

CI doesn't require Composer packages for basic functionality. You can integrate third-party libraries your way, connect to legacy databases without an ORM getting in the way, and call external APIs without a framework-specific HTTP client abstraction layer.
🔒

CI4 is production-ready and actively maintained

CodeIgniter 4 has a dedicated maintenance team, regular security releases, and active community support. It supports PHP 8.x, ships with a built-in CLI (Spark), and has a clean PSR-4 namespace structure. It's not going anywhere.
— What We Build

CodeIgniter development services — eight capabilities

Every project starts with understanding your specific requirements — not with fitting you into a service template. Here's what we build on CodeIgniter.

01

Custom Web Application Development

We build bespoke web applications on CodeIgniter 4 — business management systems, internal tools, customer portals, and workflow platforms. The architecture is designed for your domain, not copied from a generic template. Clean MVC structure, proper separation of concerns, and code that another developer can maintain without asking us how it works.
02

REST API Development & Integration

CodeIgniter 4's built-in RESTful routing and Response object make it an excellent choice for API development. We build APIs that mobile apps, third-party services, and front-end applications can consume reliably — with proper versioning, OAuth 2.0 or JWT authentication, rate limiting, and documentation that your API consumers will actually use.
03

CodeIgniter 3 to CodeIgniter 4 Migration

CI3 is no longer officially maintained. We manage phased CI4 migrations for live production applications — auditing the existing codebase, mapping namespace restructuring, updating routing and request/response patterns, and converting to PHP 8 compatible syntax. The application stays live throughout. Zero forced downtime.
04

SaaS Product Development

We've built SaaS products on CodeIgniter — multi-tenant platforms, subscription management, usage-based billing integrations, and role-based access systems. CI4's lightweight footprint makes it well-suited to SaaS applications where you need tight control over performance and infrastructure cost from day one.
05

eCommerce & Marketplace Development

Custom eCommerce platforms built on CI4 — product catalogues, order management, multi-vendor marketplaces, and fulfilment integrations. We've connected CodeIgniter applications to Stripe, PayPal, Razorpay, ShipStation, and custom warehouse systems. Purpose-built for your specific business model, not adapted from a generic eCommerce template.
06

Legacy PHP & CI Application Rescue

Inherited a CodeIgniter codebase that's held together with technical debt? We audit, stabilise, and refactor — without rewriting everything from scratch. We identify the highest-risk areas, resolve performance bottlenecks, add test coverage where there's none, and produce documentation that actually reflects how the application works.
07

Database Design & Query Optimisation

Poor database design is the most common cause of CodeIgniter performance problems. We audit your schema, identify N+1 query patterns, add the right indexes, optimise slow queries, and implement caching strategies that reduce database load without introducing stale data bugs. MySQL, PostgreSQL, or MariaDB — all covered.
08

Third-Party API & System Integration

We connect CodeIgniter applications to payment gateways, CRMs, ERPs, accounting systems, logistics providers, and marketing platforms. Proper error handling, retry logic, webhook management, and idempotency — so your integration doesn't break silently when a third-party API returns an unexpected response at 2am.
— Technology Stack

What our CodeIgniter developers work with

Our CI developers aren't siloed in one framework. They bring the full PHP ecosystem — front-end integration, DevOps, testing, and cloud deployment — to every project.

🔥

CodeIgniter 4

Core Framework
🐘

PHP 8.x

Backend Language
🗄️

MySQL / MariaDB

Database
🐘

PostgreSQL

Database

Redis / Memcached

Caching
🔐

JWT / OAuth 2.0

Authentication
💚

Vue.js

Frontend
⚛️

React

Frontend
🐳

Docker

DevOps
☁️

AWS / Azure

Cloud
🔁

GitHub Actions

CI/CD
🧪

PHPUnit

Testing
23yr
PHP engineering heritage
50+
CodeIgniter projects delivered
100%
NDA coverage from day one
— CI3 vs CI4

CodeIgniter 3 vs CodeIgniter 4 — what actually changed

If you're running CI3, this is the honest picture. We can maintain it, extend it, or move you to CI4 — depending on what makes sense for your application and budget.

Feature / AreaCodeIgniter 3CodeIgniter 4 ✓
PHP RequirementPHP 5.6+ (EOL)PHP 7.4+ · PHP 8.x supported
Namespace SupportNone — global functions and classesPSR-4 namespaces throughout
MVC StructureLoose, flexible (no enforcement)Cleaner separation, enforced by default
RoutingBasic route definitions, limited groupsRoute groups, middleware, named routes
Request / ResponseGlobal functions ($this->input)Proper Request / Response objects (PSR-7 style)
CLI SupportBasic, via URL mimicryBuilt-in Spark CLI — migrations, generators, commands
SecurityManual — CSRF, XSS filteringBuilt-in Security class, CSP headers, CSRF tokens
TestingLimited official supportPHPUnit built-in, TestResponse helpers
Maintenance StatusNo longer officially maintainedActively maintained, regular security releases
Database BuilderQuery Builder (basic)Improved Query Builder with method chaining
📋

Not sure whether to migrate or maintain?

We audit CI3 applications and give you a written recommendation — what can stay, what needs updating for security, and whether a CI4 migration is worth the investment at your current scale. That audit is free, and the report is yours regardless of whether you hire us.
— Projects We've Delivered

CodeIgniter projects — real work, real results

These aren't case study summaries written by a marketing team. They're the actual projects our CI developers have worked on, with the specifics of what we built and what happened.

01

Multi-Tenant SaaS Platform on CI4 — Print Industry (UK)

+
🏆 Serving 200+ print companies · 40% reduction in server costs vs previous Laravel build · sub-200ms API response across all endpoints
A UK print management company needed to move their existing product — PrintPLANR — onto a more performant backend. The previous Laravel implementation was under significant load and the server costs were increasing faster than the customer base. We rebuilt the core API layer in CodeIgniter 4 with a multi-tenant architecture, per-tenant database partitioning, and Redis-based caching for frequently-accessed production data. The result was a 40% reduction in infrastructure cost and response times that never exceed 200ms even at peak print season load. The CI4 codebase is also significantly easier for the internal team to extend without waiting on us.
CodeIgniter 4PHP 8.1Multi-tenancyRedis CacheREST APIMySQL
02

CI3 → CI4 Migration — Field Service Management Platform (USA)

+
🏆 Migration completed in 11 weeks · zero production downtime · 3 critical security vulnerabilities resolved during migration
An American field service company was running a CI3 application built in 2016 that managed 6,000+ work orders per year. The CI3 codebase had grown organically, had no test coverage, and had dependencies on PHP 7.2 functions that were deprecated in PHP 8. We audited the codebase, identified the three highest-risk security issues (SQL injection vectors in custom query logic, direct $_GET usage without sanitisation, and an exposed API endpoint with no authentication), and resolved those first. The CI4 migration was then completed in phases — core application first, then reporting module, then the mobile API layer — with each phase tested and deployed before starting the next.
CI3 → CI4PHP 8 UpgradeSecurity AuditPhased MigrationPHPUnit Tests
03

REST API Backend for Mobile App — Healthcare Scheduling (Australia)

+
🏆 Supporting 15,000+ monthly active users · API p95 latency under 180ms · zero-downtime deployments via GitHub Actions
An Australian healthcare company needed a REST API backend to power a patient-facing mobile application — appointment booking, clinician availability, and appointment history. The front-end team was building in React Native and needed a stable, well-documented API to work against. We built the CI4 backend from scratch: JWT authentication, scoped permissions for patients and clinical staff, appointment conflict detection, automated reminder triggers via SendGrid, and a webhook receiver for the scheduling partner's confirmation callbacks. API documentation was generated automatically via Postman and kept in sync with the codebase through the CI/CD pipeline.
CodeIgniter 4REST APIJWT AuthSendGridGitHub ActionsReact Native (client)
04

ERP Integration Layer — Manufacturing Client (India/UK)

+
🏆 Real-time sync across 4 systems · 800+ daily transactions processed automatically · team of 3 saved 12 hours/week on manual data entry
A manufacturing company with operations in India and the UK needed a middleware integration layer between their CI-based internal order management system and three external platforms: Tally for accounting, ShipStation for fulfilment, and a customer-facing Magento store. We built the integration layer in CI4 — a webhook receiver for Magento orders, a scheduled sync job for Tally invoice data, and a ShipStation API connector that updated order status back into the CI order management system. The whole system processes 800+ transactions daily with full retry logic, a dead-letter queue for failed jobs, and an internal dashboard showing sync status in real time.
CodeIgniter 4Tally APIShipStationMagento WebhooksQueue SystemDashboard
05

Legacy Rescue — Inherited CI2 Codebase (USA)

+
🏆 Application stabilised in 3 weeks · 7 critical bugs resolved · moved to CI4 in 16 weeks · client took over internal maintenance successfully
A US software company acquired a business whose main product was a CodeIgniter 2 application — a client portal used by their top 40 enterprise accounts. CI2 is completely unmaintained, was running on PHP 5.6, and the codebase had no documentation. Three weeks after acquisition, the application went down due to a server PHP upgrade. We were brought in to stabilise first, then plan the path forward. We documented the application from the codebase, resolved the immediate failures, upgraded to CI3 as a safe intermediate step, and then delivered a phased CI4 migration over 16 weeks. The client's internal developer took over at the end of the engagement — we wrote handover documentation specifically for someone who hadn't touched the codebase before.
CI2 → CI3 → CI4PHP 8 MigrationEmergency RescueDocumentationHandover
— Industries

Industries we've built CodeIgniter applications for

CodeIgniter works across industries because it's a tool, not a product. We've applied it across these sectors — here's what that looks like in practice.

🖨️

Print & Packaging

Job management, estimation, and customer portals for print businesses
🏥

Healthcare

Patient scheduling, clinical data APIs, and HIPAA-aware backend systems
🏭

Manufacturing

Work order management, ERP integration, and production tracking portals
🛒

eCommerce

Custom storefronts, order management, and multi-vendor marketplace platforms
🚚

Logistics

Fleet tracking APIs, delivery management, and dispatch portals
🏗️

Field Service

Work order scheduling, engineer dispatch, and mobile API backends
🏦

Finance

Transaction processing, reporting tools, and client-facing portals
🎓

Education

LMS backends, student portals, and course management platforms
— Engagement Models

Three ways to hire our CodeIgniter developers

NDA before code is shared. ISO 27001 certified. And an honest 30-minute scope call before any proposal is made — so you know what you're getting into.

✦ Zero Commitment

Free Scope Call

No cost · No obligation · 30 minutes
  • Understand your existing CodeIgniter setup (version, architecture)
  • Scope the build, migration, or rescue you need
  • Recommend the right developer profile for your stack
  • Give you a realistic timeline and complexity estimate
  • Written brief is yours regardless of outcome
📐 Fixed Scope

Project Delivery

Fixed price · Fixed milestones · Defined outcome
  • Detailed technical specification before any development starts
  • Fixed-price quote tied to the specification
  • Milestone-based delivery with review at each stage
  • Source code, documentation, and deployment guide on completion
  • 60-day defect warranty post-launch
  • Handover support if your team takes over maintenance
— How We Work

From first call to first commit in five days

We don't start coding before we understand what you're building. But we also don't spend three weeks in discovery when a 30-minute call would do.

01
📞

Free 30-Min Scope Call

We understand your existing CI setup, what you need built or fixed, your team structure, and your timeline. No pitch deck, no sales deck — just an honest conversation about whether we're the right fit.
02
🤝

NDA + Developer Match

NDA is signed. We match a CodeIgniter developer to your specific stack and project type — not just "a PHP developer." Within 48 hours you're meeting the person who'll be working on your code.
03
⚙️

Onboarding & Environment Setup

The developer joins your tools — Slack, GitHub or GitLab, Jira or Linear, whatever you use. Local environment configured and tested. First standup on day one. No two-week ramp-up before anything gets done.
04
🚀

Delivery & Ongoing Communication

Daily standups, weekly progress reports, code reviewed by a second senior developer before it merges. You have direct access to the developer — no account manager in the middle filtering your questions.
— Why Infomaze

Why hire a CodeIgniter developer from us

There are plenty of PHP development companies. Here's the specific case for working with us on a CodeIgniter project.

📅

15+ years in PHP — CodeIgniter since v1

We've been building PHP applications since before most PHP frameworks existed. Our developers have worked with CodeIgniter across every major version. We don't need to learn the framework on your project.
🧑‍💻

The developer you meet is the one who writes your code

In our engagements, the developer you meet in the intro call is the one who works on your project. We don't bait-and-switch with a senior developer in discovery and a junior in delivery. If it changes for any reason, you know about it first.
🔒

ISO 27001 certified — not just a promise on a slide

Data security is a formal certified process at Infomaze, not a bullet point in a proposal. NDA before any code or documentation is shared. Access control, encrypted communication, and audit logs — standard across every engagement.
📝

You get documentation you can actually use

Every project we deliver includes documentation that a developer who's never seen your codebase could understand and work with. Architecture overview, key workflows, database schema notes, deployment steps. Not a copy of the code with comments.
We've built SaaS products on CodeIgniter ourselves
PrintPLANR — our own print management SaaS product, used by 200+ print companies in the UK and Australia — is built on CodeIgniter. So when we say we know how to build production-grade applications with this framework, we're speaking from our own commercial experience, not just client project history.
— Client Reviews

What clients say about working with our developers

★★★★★
"Infomaze is the best technology partner any business could ask for. They go above and beyond to satisfy business needs and will research and develop anything you need. I will never switch to any other company."
S
Salvatore
Project Manager · USA
★★★★★
"Vic and the team are absolutely awesome to work with. Their professionalism is top notch. They were patient and courteous every step of the way. I would definitely recommend hiring them and will continue to use them."
B
Bryce
Director · Australia
★★★★★
"We've worked with Infomaze across multiple PHP projects over three years. The consistency of quality, communication, and delivery is what keeps us coming back. They're not a vendor — they're part of the team."
R
Richard
CTO · UK SaaS Company
— FAQ

Questions about hiring our CodeIgniter developers

How do I hire a dedicated CodeIgniter developer from Infomaze?

+
Start with a free 30-minute technical consultation. We scope your project, recommend the right developer profile, and within 48 hours you're meeting candidates. There's no recruitment fee — you pay for output, not for our hiring process. NDA is signed before anything is shared.

Do your CodeIgniter developers work on CodeIgniter 4?

+
Yes. Our developers are fluent in both CodeIgniter 3 and CodeIgniter 4. For new projects we always recommend CI4 with PHP 8. For existing CI3 applications, we can maintain, extend, or plan a phased migration to CI4 — depending on what makes business sense for your specific situation.

Can you upgrade our existing CodeIgniter 3 application to CodeIgniter 4?

+
Yes. We audit your existing CI3 codebase, map the migration scope, and move it to CI4 in phases — so the application stays live throughout. We handle namespace restructuring, updated routing, new Response/Request objects, Spark CLI integration, and PHP 8 compatibility. The application is tested at each phase before moving to the next.

How quickly can a CodeIgniter developer start on our project?

+
Most engagements start within 5–7 working days of the initial consultation. NDA is signed before anything is shared. We match the developer to your specific stack — CI version, PHP version, database type, and any third-party integrations already in place. The intro call between you and the developer happens within 48 hours of us agreeing scope.

Do you sign an NDA before starting?

+
Yes, always. NDA is signed before any code, documentation, or business requirements are shared. We are ISO 27001 certified, which means data security is a formal, audited part of how we operate — not just a promise. You'll also receive a signed IP assignment confirming that everything built belongs to you.

What is the difference between CodeIgniter 3 and CodeIgniter 4?

+
CodeIgniter 4 is a full rewrite — PSR-4 namespaces, proper Request/Response objects, a built-in CLI (Spark), improved routing with middleware support, and PHP 7.4+ requirement. CI3 is no longer officially maintained and runs on EOL PHP versions. For new projects we always build in CI4. For existing CI3 apps, we assess the migration scope before recommending anything.

Can your CodeIgniter developers work in our time zone?

+
Yes. Our primary markets are the US, UK, and Australia, and our developers are used to working in overlap hours with all three time zones. For US East Coast clients we typically run a 9am–1pm EST overlap. For UK clients we offer morning sessions from 8am GMT. For Australian clients we offer early-morning AEST slots. Exact hours are agreed during the onboarding call.
— Related Services

Other development services from Infomaze

Ready to hire a CodeIgniter developer who knows the framework?

Start with a free 30-minute scope call. We'll understand your project, recommend the right developer, and have someone ready to meet you within 48 hours. No recruitment fee. No commitment until you're ready.

🔒 NDA before code is shared · ISO 27001 certified · 7-day fit guarantee on dedicated developers · No spam

Back to top
📊 BI Practice
Free Assessment
We find out why your dashboards aren't being used — and fix it.

🔒 ISO 27001 · No spam · Honest assessment