Senior Full Stack Systems Developer in Watford)

Penguin Recruitment; Watford; Hybrid; GBP 75,000 - 85,000; Full time

Job summary

A leading recruitment agency is seeking a Senior Full Stack Systems Engineer to lead a skilled development group in Watford. You will oversee full-stack development of cloud-based services, shape system architecture, and manage deployment processes. Ideal candidates will have a solid background in Java enterprise middleware and experience guiding technical teams. The role offers a salary between £75,000 and £85,000 plus performance bonuses and competitive perks.

Benefits

Competitive pension

Excellent annual leave

Access to EV salary-sacrifice scheme

Qualifications

• End-to-end experience with large-scale software systems.
• Solid background in Java enterprise middleware (a must).
• Proficiency across design, development, testing, and deployment.

Responsibilities

• Oversee full-stack development across sophisticated cloud-based services.
• Shape system architecture and steer design decisions.
• Coach other engineers and help drive technical strategy.

Skills

End-to-end experience with large-scale software systems

Solid background in Java enterprise middleware

Proficiency in design, development, testing, and deployment

Knowledge of security, databases, networking, and user interaction

Familiarity with Docker, RESTful services, MQTT

Experience with environmental data or monitoring technologies

Guiding or managing technical teams

Tools

Docker

RESTful services

MQTT

Job description

Senior Full Stack Systems Engineer

Reference: 128941

Watford (Hybrid)

£75,000 - £85,000

Step into a forward-looking organisation pushing the boundaries of environmental innovation. For more than a decade, this team has been redefining how the UK tracks and interprets environmental shifts, creating integrated, data-rich platforms that deliver instant, actionable intelligence. As the company continues to scale, they're searching for a Senior Full Stack Systems Engineer to guide a skilled development group and help craft the next wave of intelligent digital solutions.

What this Senior Full Stack Systems Engineer role

Package: £75,000-£85,000 plus a performance bonus, with room to progress

Perks: Competitive pension, excellent annual leave, and access to an EV salary-sacrifice scheme

Environment: Innovative, collaborative, and committed to meaningful impact and continuous learning

The Senior Full Stack Systems Engineer opportunity

In this senior role, you'll oversee full-stack development across sophisticated cloud-based services. You'll shape system architecture, steer design decisions, and manage deployment processes, ensuring robust, secure, and scalable products. You'll also coach other engineers, help drive technical strategy, and work closely with multidisciplinary teams to deliver enterprise-grade solutions.

What we're looking for

• End-to-end experience with large-scale software systems
• Solid background in Java enterprise middleware (a must)
• Proficiency across design, development, testing, and deployment
• Broad knowledge of security, databases, networking, and user interaction
• Familiarity with tools and technologies such as Docker, RESTful services, MQTT, and deep learning libraries
• Experience with environmental data or monitoring technologies (a plus)
• A track record of guiding or managing technical teams
• Commutable to Watford