System Developer (Full Stack)

Jaywing; Leeds; Hybrid; GBP 35,000 - 50,000; Full time

Job summary

A cutting-edge marketing agency in Leeds is looking for ambitious System Developers. You will design and develop software solutions that merge marketing and financial technology. The role involves using Node.js, PHP, and Python, with a focus on AI applications. Join a vibrant team that values collaboration, and enjoy excellent benefits including flexible working and a healthcare cash plan.

Benefits

25 days of holiday plus bank holidays

Healthcare cash plan

Generous company pension scheme

Life assurance cover

Flexible, hybrid working model

Qualifications

• 2–3 years of commercial experience in software development.
• Proficiency in Node.js, PHP, or Python.
• Experience with modern PHP frameworks (Laravel, Symfony).
• Analytical abilities and problem-solving skills.
• Excellent communication skills and teamwork.

Responsibilities

• Develop, test, and deploy applications using Node.js, PHP, and Python.
• Utilise Python for intelligent automation and optimisation.
• Integrate systems, APIs, and data sources.
• Work in an agile team with developers and data scientists.
• Maintain code quality through reviews and documentation.
• Troubleshoot production issues to ensure reliability.

Skills

Node.js

PHP

Python

Problem-solving

Communication

MySQL

Git

HTML

CSS

AI Enthusiasm

Tools

AWS

Docker

Job description

Jaywing, an award-winning marketing agency, is now a proud part of Stubben Edge Group, a cutting‑edge fintech innovator. This combination has created a unique powerhouse, blending deep expertise in marketing technology with the dynamic, high‑growth world of finance and applied AI.

This is an incredibly exciting time to join us. We are at the start of a journey to integrate these two worlds, creating solutions that will redefine both industries.

The Opportunity: Work at the Intersection of FinTech, MarTech, and AI

We are looking for two ambitious System Developers to join our Research and Development team. This team forms the critical core of our award‑winning Accelerator Lab, placing you at the very heart of our innovation.

The purpose of this role is to design, develop, and implement software solutions that bridge the gap between our marketing and financial technology domains. You will have direct access to cutting‑edge AI development, moving beyond just using AI tools to actively building with them. You'll gain hands‑on experience with agentic AI frameworks to create intelligent systems that drive optimisations across every element of our newly expanded group.

Key Responsibilities

• Build a Unified Future: Develop, test, and deploy robust and scalable applications using Node.js, PHP, and Python to serve both marketing clients and fintech platforms.
• Pioneer with Applied AI: Utilise Python and leading agentic frameworks to design, build, and deploy intelligent automation and optimisation engines for the entire group.
• Integrate and Unite Systems: Play a key role in integrating disparate software systems, APIs, and data sources across the group, solving unique challenges that arise at the intersection of marketing and finance.
• Collaborate and Communicate: Work effectively in an agile environment with diverse teams of developers, data scientists, and financial experts, translating business needs into technical specifications.
• Ensure Code Quality: Adhere to company coding standards, perform code reviews, and maintain clear technical documentation to ensure the long‑term quality and maintainability of our systems.
• Provide Technical Support: Troubleshoot and resolve issues in production systems, ensuring high levels of performance and reliability.

Skills and Qualifications

• A minimum of 2–3 years of commercial experience in a software development role.
• Proficiency in at least one of the following: Node.js, PHP, or Python.
• Experience with modern PHP frameworks (e.g., Laravel, Symfony).
• Strong analytical and problem‑solving abilities.
• Excellent communication skills, with the ability to work effectively in a collaborative team.
• Experience with relational databases (e.g., MySQL) and version control with Git.
• Comfortable working with HTML and CSS to implement and tweak front‑end templates.
• An AI Enthusiast: A genuine excitement for the potential of AI. You don't need to be an expert, but you have a strong desire to learn and apply AI methodologies in your work.
• Knowledge of cloud platforms (particularly AWS) and containerisation (Docker).

Why Join Us? The Jaywing & Stubben Edge Advantage

Become an AI Practitioner: Move beyond theory. This role offers practical, career‑defining experience with agentic AI frameworks—one of the most sought‑after specialisms in technology today.

A Unique Career Trajectory: Be at the forefront of a rare industry convergence. The skills you gain at the intersection of FinTech, MarTech, and AI will make you exceptionally valuable.

A Vibrant & Supportive Culture: Join a friendly, social, and collaborative team that is excited about the future and values every member's contribution.

Excellent Benefits

• 25 days of holiday (increasing by one day per year of service up to 30), plus bank holidays
• Healthcare cash plan
• A generous company pension scheme
• Life assurance cover
• A truly flexible, hybrid working model

Send a covering letter, CV and anything else you think showcases your talent to [e-mail]
Jaywing is an equal opportunities employer.

Application

Details: CV / Covering letter.