My client, a leading financial services organisation based in London, is seeking a

Back End Tech Lead (Node.js Specialist)

to shape and own the future of their backend architecture. This is a unique opportunity to provide both technical leadership and hands-on coding expertise, while mentoring a skilled engineering team and setting the long-term vision for backend systems.Key Responsibilities

Lead the design and development of backend services using

Node.js

within a

microservices architecture .Take ownership of backend system architecture, ensuring scalability, reliability, and best-in-class engineering practices.Mentor and lead a talented backend team of three engineers (mid-senior level), conducting code reviews and enforcing high standards of test coverage.Collaborate closely with project management, product teams, and business stakeholders to translate requirements into robust technical solutions.Ensure system performance and security remain at the forefront of development practices.Play a hands-on role, with approximately

80%

of your time spent coding and

20%

on leadership and mentoring.Contribute to strategic IT planning and introduce innovations to improve systems and processes.Essential Requirements

Strong expertise in

JavaScript, Node.js, Microsoft SQL, and MongoDB .Proven experience in architecting and implementing complex software systems in a

microservices environment .Knowledge of

RabbitMQ

(or similar messaging tools) and CI/CD pipelines ( GitLab

preferred).Experience with

ElasticSearch

highly desirable.Minimum 5 years in software development, with at least 2 years in a leadership or mentoring role.Experience in financial services compliance is a plus but not essential.Strong knowledge of design patterns, coding standards, and best practices.Excellent communication and collaboration skills, with the ability to engage both technical and non-technical stakeholders.Team Environment

You''ll be joining a collaborative, multi-disciplinary team that includes frontend, app development (Flutter), DevOps, and QA specialists. The backend team is seeking strong architectural leadership, making this a pivotal role with high visibility and real influence on future technical direction.What’s on Offer

Paying up to £100,000 per annum.Hybrid working model - choose between London or Ipswich office locations.A culture that values collaboration, long-term retention, and work-life balance.The opportunity to take true ownership of backend architecture in a supportive, innovative environment.Professional development and mentoring opportunities to both grow and help others grow.

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