Senior FullStack Developer (TypeScript/JavaScript,.NET C#, SQL)

lloyds banking group; Manchester; On-site; GBP 125,000 - 150,000; Full time

Job summary

A leading UK financial group is seeking a Senior Software Engineer to design and build applications that shape finance positively. You'll utilize technologies such as Node.js, .NET, and modern front-end frameworks in a culture focused on inclusion and diversity. This role involves mentoring, collaboration, and a commitment to high-quality software development, with an attractive benefits package including up to 15% pension contributions and 30 days' holiday.

Benefits

Up to 15% pension contribution

Annual bonus

Share schemes

30 days' holiday plus bank holidays

Flexible benefits tailored to your lifestyle

Generous parental leave

Qualifications

• Proven hands-on experience with Node.js and designing RESTful APIs.
• Strong understanding of .NET and object-oriented programming.
• Strong proficiency in JavaScript for responsive UI development.
• Experience with CI/CD tools and cloud platforms is a plus.
• Commitment to writing reliable, maintainable, well-tested code.

Responsibilities

• Design and develop frontend and backend services.
• Build and deploy containerized applications.
• Collaborate with Product Owners and Architects.
• Integrate with internal systems and APIs.
• Mentor junior engineers.

Skills

Node.js (TypeScript/JavaScript)

C# and .NET framework

Database design and SQL

JavaScript/TypeScript for UI

React (preferable)

CI/CD tools

Docker

Automated testing (Playwright, Jest)

Tools

Docker

Kubernetes

GitHub Actions

PostgreSQL

Storybook

Job description

As a senior software engineer, you'll play a key role in designing and building modern applications that touch millions of lives. You'll:

Responsibilities

• Design, develop, test, and deploy frontend and backend services.
• Build and deploy containerized applications with Docker and Kubernetes.
• Apply Domain-Driven Design (DDD) and Test-Driven Development (TDD) principles.
• Collaborate closely with Product Owners, Architects, and Quality Engineers.
• Integrate with internal systems and third‑party APIs to create seamless user experiences.
• Contribute to architectural decisions and help shape our engineering strategy.
• Mentor junior engineers and foster a culture of learning and inclusion.

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 Fullstack Developers with experience in both TypeScript/JavaScript and .NET C# 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. We're looking for senior engineers who are adaptable, curious, and passionate about building great software! To help us understand how you might contribute to our team, please highlight any relevant experience with the following skills and technologies in your application:

Backend Development

• Proven hands‑on experience with Node.js (TypeScript/JavaScript), including designing and implementing RESTful APIs that support scalable, secure, and high‑performance architectures. Any experience with NestJS, TypeORM and Redis (caching) is also highly desirable.
• Familiarity with Microsoft C# with a strong understanding of the .NET framework and object‑oriented programming.
• Proficient in database design and SQL (Microsoft SQL Server/PostgreSQL).

Frontend Development

• Strong proficiency in JavaScript/TypeScript for building modern, responsive user interfaces.
• Familiarity with front‑end frameworks such as React (preferable), Vue.js or Angular. Experience with libraries such as Next.js, Redux, React Query and React Hook Forms is desirable.
• Exposure to UI component development tools such as Storybook is preferable.

DevOps & Cloud

• Experience with CI/CD tools such as GitHub Actions, Jenkins, or Harness.
• Familiarity with Docker for containerization and Kubernetes for orchestration.
• Exposure to cloud platforms – Google Cloud Platform (GCP) preferred, but AWS or Azure experience is also welcome.

Quality Testing & Automation

• Experience with automated testing tools like Playwright and Jest.
• Commitment to writing reliable, maintainable, and well‑tested code.

At Lloyds Banking Group, we're driven by a clear purpose; to help Britain prosper. Across the Group, our colleagues are focused on making a difference to customers, businesses and communities. With us you'll have a key role to play in shaping the financial services of the future, whilst the scale and reach of our Group means you'll have many opportunities to learn, grow and develop.

We keep your data safe. So, we'll only ever ask you to provide confidential or sensitive information once you have formally been invited along to an interview or accepted a verbal offer to join us which is when we run our background checks. We'll always explain what we need and why, with any request coming from a trusted Lloyds Banking Group person. We're focused on creating a values‑led culture and are committed to building a workforce which reflects the diversity of the customers and communities we serve. Together we're building a truly inclusive workplace where all of our colleagues have the opportunity to make a real difference.

We're proud to be a leader in diversity, equity, and inclusion. From our menopause health package to our Working with Cancer initiative, we're creating a workplace where everyone can thrive. We're also a Disability Confident Leader, and we guarantee interviews for a fair and proportionate number of applicants with disabilities, long‑term health conditions, or neurodivergence who meet the minimum criteria. Our benefits include:

Benefits

• Up to 15% pension contribution
• Annual bonus (based on Group performance)
• Share schemes, including free shares
• 30 days' holiday plus bank holidays
• Flexible benefits tailored to your lifestyle
• Generous parental leave and wellbeing support