Senior Full-Stack Engineer – Legacy System Modernisation (Laravel/MySQL) to Healthcare SaaS Platform (Open Arogya)
(Product Ownership | System Modernisation | AI-Driven Development | Independent Technical Leadership)
Open Arogya is not just an internal system upgrade.
It will be launched as a new standalone SaaS startup company, initially funded by Manchester Private Hospital as seed capital.
The objective is to:
* Successfully modernise and stabilise the current legacy platform
* Launch Open Arogya as a production-ready healthcare SaaS product
* Pilot within Manchester Private Hospital
* Then scale and commercialise to the wider UK healthcare market
This role is therefore more than a senior engineering position.
You will play a foundational role in building the technical backbone of a healthcare technology startup from the ground up.
Location: Manchester (Office-Based Preferred)
Experience: Minimum 4+ Years
Employment Type: Full-Time
About the Role
We are evolving an existing legacy Laravel + MySQL system into a modern, scalable, multi-tenant healthcare SaaS platform called Open Arogya.
The legacy system is functional but requires:
* Architectural refinement
* Codebase restructuring
* Workflow redesign
* Performance improvements
* Security hardening
* Multi-tenant transformation
* API-first modernisation
This is not a greenfield build.
This role is for a strong, independent Senior Full-Stack Engineer (minimum 4 years experience) who can:
* Audit and understand an existing codebase
* Refactor and modernise without breaking production stability
* Evolve the system into a scalable SaaS architecture
* Use AI tools such as Claude Code, Cursor, GitHub Copilot (or similar) to accelerate structured development
* Take full technical ownership of transformation
Current System Overview
* Backend: Laravel (Legacy versions partially upgraded)
* Database: MySQL
* Monolithic structure
* Limited modular separation
* Workflow-heavy logic
* Growing integration requirements (Stripe, Twilio, WhatsApp, Agora, etc.)
The goal is to transform this into:
* Clean modular architecture
* Multi-tenant SaaS model
* API-first backend
* Production-grade deployment model
* Scalable and maintainable platform
Key Responsibilities
1️ Legacy System Audit & Modernisation
* Review and understand the current Laravel codebase
* Identify architectural weaknesses and technical debt
* Refactor legacy patterns into maintainable modular design
* Improve database structure where necessary
* Reduce coupling and improve separation of concerns
* Optimise performance and query efficiency (MySQL)
You must be comfortable working inside imperfect code and improving it.
2️ SaaS Multi-Tenant Transformation
* Design and implement multi-tenant architecture
* Ensure tenant data isolation
* Implement scalable API structures
* Introduce proper role and permission systems
* Improve state and workflow management logic
Experience designing SaaS platforms is strongly preferred.
3️ AI-Driven Engineering
You must have hands-on experience using AI coding tools such as:
* Claude Code
* GitHub Copilot
* Cursor
* Codeium
* Similar AI coding agents
Responsibilities include:
* Using AI for structured refactoring
* Accelerating boilerplate and documentation
* Generating and validating test cases
* Improving developer velocity without compromising quality
* Designing prompt-driven development workflows
We expect intelligent use of AI — not blind dependency.
4️ Full-Stack Development (Hands-On)
Backend:
* Laravel (core focus)
* API design and implementation
Frontend:
* React (or modern frontend framework)
* Integration with backend APIs
Database:
* MySQL schema optimisation
* Query tuning
* Migration planning
5️ Integration & Infrastructure Improvement
Integrations include:
* Stripe Connect
* Twilio (SMS, OTP, Voice)
* Meta WhatsApp Cloud API
* Agora Video API
* Social media APIs
You will:
* Improve integration architecture
* Standardise API structures
* Ensure webhook reliability
* Improve error handling and logging
6️ DevOps & Release Management
* Work with CI/CD pipelines
* Manage release cycles
* Ensure environment separation (dev/staging/prod)
* Improve deployment reliability
* Maintain version control discipline (GitHub)
Cloud fundamentals (AWS/Azure/GCP) required.
Essential Requirements
* Minimum 4 years full-stack experience
* Strong Laravel experience (must)
* Strong MySQL database understanding
* Experience refactoring legacy systems
* Experience working with SaaS platforms
* AI-assisted development experience
* Experience with APIs and integrations
* Ability to work independently
* Strong architectural thinking
Strongly Desirable
* Healthcare or regulated environment experience
* Multi-tenant SaaS experience
* Experience working with external vendors
* Experience modernising monolithic systems
* Familiarity with event-driven or service-based architecture
Personal Attributes
You are:
* Comfortable working in imperfect legacy systems
* Structured and disciplined
* Technically opinionated but pragmatic
* Independent and accountable
* Focused on delivering production-ready software
* Capable of balancing speed and safety
Compensation & Growth
Salary: £60,000 – £80,000 (depending on experience)
Performance Bonus: 10–20%
Equity / Phantom Shares
Long-Term Incentives linked to platform modernisation milestones
Clear progression path toward:
* Technical Lead
* Platform Architect
* Product Manager
* Head of Engineering
What Success Looks Like
Within 6–12 months:
* Legacy system stabilised and refactored
* Clear SaaS multi-tenant architecture implemented
* Integrations standardised
* Production deployment reliable
* Open Arogya positioned as scalable healthcare SaaS
Job Type: Full-time
Pay: £60,000.00-£80,000.00 per year
Benefits:
* Employee discount
* Employee stock ownership plan
* Employee stock purchase plan
* Flexitime
* On-site parking
* Relocation assistance
Work Location: Hybrid remote in Salford M5 4HB