🌳 🚀 Senior Software Engineer / Tech Lead (x5 Roles) - Go, PHP, OOP, AWS, APIs, Full Stack Enginee...

🚀 Senior Software Engineer / Tech Lead (x5 Roles) – Go, PHP, OOP, AWS, APIs, Full Stack Engineering

Award-Winning, High-Growth SaaS Scale-Up | Remote UK | £67,000–£90,000 + Exceptional Benefits

Areti Group – Carbon Positive Tech Recruitment | People & Planet Before Profit 🌳

About the Opportunity

We are hiring five exceptional Senior Software Engineers / Tech Leads for one of the UK's fastest-growing technology scale-ups.

Following significant growth and investment, the business is embarking on a major platform evolution programme, transitioning from a mature PHP-based architecture towards a modern, scalable, cloud-native ecosystem built around Go, APIs, distributed services, and event-driven architecture.

This is a rare opportunity to help shape the future technical direction of a highly successful SaaS platform used by global organisations.

We're looking for engineers who enjoy solving complex problems, influencing architecture, mentoring teams, and remaining hands-on with technology.

The Opportunity

These roles sit at the heart of the engineering organisation.

You'll lead technical delivery while helping drive a strategic technology transformation, modernising existing systems and building the next generation of products and services.

This role combines:

🌳 Hands-on software engineering

🌳 Technical leadership

🌳 Architectural ownership

🌳 Mentoring and coaching

🌳 Cloud-native platform development

🌳 Full-stack product delivery

You'll work closely with Engineering, Product, Platform, and Architecture teams to build highly scalable solutions capable of supporting continued rapid growth.

What You'll Be Doing

🌳 Leading and mentoring teams of talented software engineers

🌳 Driving engineering best practices around Object-Oriented Design, SOLID principles, clean architecture, and maintainable code

🌳 Designing and building scalable APIs and backend services

🌳 Helping evolve a large PHP platform towards modern Go-based microservices

🌳 Contributing across the full stack, from backend services through to customer-facing applications

🌳 Influencing technical strategy, architecture, and platform direction

🌳 Working closely with Product teams to deliver business-critical features

🌳 Supporting CI/CD, cloud infrastructure, observability, and platform reliability initiatives

🌳 Taking ownership from concept through design, development, testing, deployment, and ongoing optimisation

🌳 Playing a key role in hiring and developing future engineering talent

Technology Environment

We're specifically seeking polyglot engineers who are comfortable working across multiple languages and technologies.

Core Technologies

🌳 Go (Golang)

🌳 PHP

🌳 REST APIs & Service-Oriented Architecture

🌳 Object-Oriented Programming (OOP)

🌳 AWS Cloud Platform

🌳 MySQL / PostgreSQL

🌳 Docker & Containerisation

🌳 CI/CD Pipelines

🌳 Git & Modern Development Practices

Front-End Technologies

🌳 JavaScript / TypeScript

🌳 Vue.js, React or modern SPA frameworks

🌳 HTML5

🌳 CSS / Tailwind

Bonus Experience

🌳 Event-Driven Architecture

🌳 Kafka, RabbitMQ or messaging systems

🌳 Kubernetes

🌳 Terraform / Infrastructure as Code

🌳 Distributed Systems

🌳 Domain-Driven Design (DDD)

🌳 Observability and Monitoring

About You

We're less interested in job titles and more interested in engineering mindset.

You'll likely be:

🌳 A strong software engineer with deep OOP and design pattern experience

🌳 An advocate of clean code and engineering excellence

🌳 Comfortable working across both backend and frontend technologies

🌳 Experienced building and consuming APIs at scale

🌳 A polyglot developer who enjoys working across multiple languages

🌳 Interested in modern Go development and platform engineering

🌳 Experienced with PHP and excited by large-scale transformation programmes

🌳 Comfortable influencing architecture and technical decisions

🌳 A natural mentor who enjoys helping engineers grow

🌳 Passionate about building scalable, maintainable software

What Success Looks Like

In your first 12 months you'll help:

🌳 Accelerate the migration towards Go-based services

🌳 Modernise key areas of the existing PHP platform

🌳 Improve scalability, resilience, and performance

🌳 Drive API-first engineering practices

🌳 Enhance cloud-native capabilities within AWS

🌳 Support engineering teams through the next stage of platform growth

🌳 Raise technical standards across the organisation

Package & Benefits

🌳 £67,000–£90,000 depending on experience

🌳 Remote-first working

🌳 £1,000+ annual learning and development budget

🌳 33 days holiday rising to 40 days

🌳 4-week paid sabbatical after 5 years

🌳 Private healthcare

🌳 Income protection

🌳 Death-in-service cover

🌳 Matched pension contribution up to 5%

🌳 Innovation Weeks twice per year

🌳 20 hours paid volunteering leave

🌳 Flexible working arrangements

🌳 Inclusive, collaborative engineering culture

Working Model

🌍 Remote-first across the UK

🌳 Flexible hours around a 37.5-hour week

🌳 Occasional team collaboration days

🌳 High trust, high autonomy environment

🌳 Outcomes over presenteeism

Immediate Hiring

Interview slots are already reserved for strong candidates.

Please ensure your CV clearly demonstrates:

🌳 Golang and/or PHP expertise

🌳 Object-Oriented Design principles

🌳 API development experience

🌳 AWS cloud experience

🌳 Full-stack engineering capability

🌳 Technical leadership or mentoring experience

🌳 Architectural ownership and decision-making

Why This Role?

These roles are incredibly urgent, with interview slots pre-booked for next week. We are moving fast, and suitable candidates can expect offers within 3 days of interviews. This is an exciting opportunity to join one of the most forward-thinking companies in the market.

If you're a polyglot fullstack developer ready to take on new challenges, eager to learn, and passionate about technology and teamwork, we want to hear from you.

🌳 Areti Group – Climate Positive Tech Recruitment 🌳

We’re on a mission to put people and the planet first, leaving the world better than we found it.