Fullstack Senior Software Engineer; Cards

Position: Fullstack Senior Software Engineer (Cards)
** End Date
** Friday 13 March 2026
** Salary Range**£72,702 - £109,053
** Flexible Working Options
** Hybrid Working, Job Share
** Job Description Summary
** Software Engineer will lead technical development and delivery at Team and sometimes Lab level. They can be a Line Manager who will act as co-lead with the Team PO for overall delivery. In these cases, they will be responsible for overall tech delivery, line management & app ownership alongside their own software engineering output.. Others will operate as Individual Contributors, who are specialists in particular technology areas and will be narrower and deeper in focus.
** Job Description
***
* TITLE:

** Senior Full Stack Engineer
** SALARY:** £72,702 - £80,780 per annum
*
* LOCATION:

Chester and Manchester
***
* HOURS:

** Full-time - 35 hours per week
** WORKING PATTERN:
** Our work style is hybrid, which involves spending at least two days per week, or 40% of our time, at one of our office sites.  
** ABOUT THIS OPPORTUNITY
** We’re not just a bank. We’re a technology-led organisation with a bold ambition: to shape finance as a force for good. As we continue to invest in our people, platforms, and products, we’re looking for passionate
** Senior Full Stack Developers
** to help us create secure, scalable, and customer-first solutions. If you’re someone who thrives in collaborative environments, enjoys solving meaningful problems, and wants to make a real impact - this could be the perfect next step in your career.
*
* Key responsibilities include:

*** Design, develop, test, and deploy high-quality software solutions that meet business needs
* Work closely with colleagues from different areas to capture and analyse requirements and determine technical feasibility
* Lead the development and implementation of complex software applications
* Maintain code quality and follow coding standards
* Participate in code reviews and provide constructive feedback to team members
* Lead with debugging and analysis of production incidents
* Mentor and coach junior engineers, encouraging a culture of learning and continuous improvement
** What you'll need:
*** Extensive experience as a Senior Full Stack Engineer or in a comparable role
* Strong grasp of software engineering fundamentals, with a track record of building scalable, resilient, and highly observable systems
* Expert proficiency in Java, with additional experience in JavaScript, Node.js  or React considered a plus
* Hands-on experience with cloud platforms (GCP, Azure, or AWS), including cloud‑native architectures
* Proven experience building, deploying, and operating containerised applications using Docker, Kubernetes, and Helm
* Practical application of Domain-Driven Design (DDD) and Test-Driven Development (TDD) principles
* Solid understanding of software testing strategies, methodologies, and best practices
* Experience working in Agile environments, including Scrum, and using tools such as Jira
* Experience with CI/CD tools such as Git Hub Actions, Jenkins, or Harness.
* Strong problem-solving and analytical skills, with the ability to tackle complex technical challenges
* Excellent collaboration and stakeholder engagement skills, with the ability to build strong working relationships
* Awareness of and interest in emerging technologies, including Generative AI, and Agentic / AI Capabilities
* Good understanding of networking concepts, ideally across both public cloud and on‑premise environments
* Ability to contribute to architectural decisions and help shape the broader engineering strategy
* Commitment to mentoring junior engineers and fostering a culture of learning, inclusion, and continuous improvement
** If you're selected to move forward in our assessment process, you may be invited to complete a technical interview with Karat - our trusted interviewing partner. As part of this stage, we’ll share your information with Karat, in line with their*
* ** About working for us
** Our focus is to ensure we're inclusive every day, building an organisation that reflects modern society and celebrates diversity in all its forms. We want our people to feel that they belong and can be their best, regardless of background,…