Senior Full Stack Engineer

At Kinsworth, we aren’t just building software; we’re building a product customers love and a successful business. To achieve this, we operate at pace, we're big believers in autonomous teams and iterative development. We're crazy about continuous improvement and knowledge sharing, and we want people who share our enthusiasm.

We strive to always build the right thing and build the thing right, so we place great emphasis on understanding exactly what our customers need and delivering quality products that exceed their expectations.

We think that high-performing teams operate best through a model of build-it and run-it that comes from a deep curiosity about how our products work and how our customers use them. We use this foundation to build comprehensive product knowledge and industry expertise, but we're not dogmatic about it.

We operate in build squads that operate independently but are aligned to the same goals and ways of working. We recognise that different drives guide our roadmaps from customer needs to commercial strategy to regulatory change, and managing those dependencies is best achieved through aligned team decisions.

We make customer success everyone's business — what we are going to do and how we do it are team decisions.

We strongly believe that you grow expertise through hands-on experience, rather than just theoretical knowledge, so our approach to product leadership is designed to give you deep exposure to our products, our customers, and the fintech industry really fast. And really often.

We build our product and tech function with focus on:

• Understanding Kinsworth, the industry needs and customer use cases
• Quality is at the heart of everything we do and not just a gate in a process
• Leading product roadmaps, planning and establishing best practices
• Developing expertise in the financial services industry and regulatory environments
• Building and maintaining exceptional customer relationships through team excellence
• Zero-to-one function building — creating product delivery frameworks, engineering performance systems, and product delivery processes from the ground up
• Building and leveraging AI technology to enhance product features and development workflows

We build with technology like:

• React, React Native, TypeScript & JavaScript, Next.js, Node, HTML, CSS
• GraphQL-based APIs - we use Apollo on the client side
• Cloud deployments - Azure, Docker, Kubernetes, GitHub
• Observability - Sentry
• AI/ML tools and frameworks (e.g., LLMs, generative AI)

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• Contributing to the technical design and development of the consumer experience for Kinsworth, delivering high-quality, maintainable and scalable solutions across the full stack
• Designing, building and maintaining high-performance, scalable, available and fault-tolerant systems
• Promoting strong engineering practices, collaboration, quality and technical ownership
• Contributing to architecture decisions and helping shape the technical direction of the product domain
• Partnering closely with Product Managers, Designers and other stakeholders to understand requirements, challenge assumptions and deliver against the product roadmap
• Contributing to the technology team’s approach to information security and governance, following and helping establish standards and practices for building secure, reliable solutions
• Leveraging AI technologies to enhance product features, improve development workflows and explore new ways of building AI-enabled capabilities
• Working within a “you build it, you run it” model, taking ownership of services throughout their lifecycle, supporting continual delivery, managing technical risks and dependencies, and adopting strong DevOps practices

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Location

We describe ourselves as “remote but not remote only”.

We believe work can be done anywhere but relationships and trust are built best face-to-face. And that the best teams take ownership for themselves.

We strongly believe our people should decide where they will do the best work for the company.  We don’t support presenteeism, nor do we support missing important face-to-face meetings to receive an Amazon delivery at home.  But if you take ownership of yours and your teams’ deliveries, and will work where you need to be to get the best outcome for the company, whether that be at home, in the office in London, or meeting strategic partners, then you’re for us.

Benefits

• 25 days holiday

• Birthday day off

• Workplace Pension Scheme

• Private Medical Insurance

• Private Dental Insurance

• Group Income Protection

• Group Life Assurance

• 24-hour mental health support

• Equity Scheme (coming soon!)- Experience building with and leveraging AI technology to enhance product features and development workflows.

• Strong experience as a full-stack engineer with experience of some or all of the technologies in our platform. React experience is essential, and React Native is strongly preferred.

• Experience of mobile app development

• Experience or strong understanding of building and running secure, reliable, cloud-based solutions, ideally in a regulated or financial environment

• Attention to detail and empathy to user needs and experience

• Excellent communication skills

• Flexible and focused on solutions

• Organised and self-sufficient

• Background and/or enthusiasm for the ways we work:

  • Test-Driven Development - we use jest and react-testing-library across our codebase
  • Build automation, continuous integration and continuous deployment to production systems
  • Agile/iterative development processes
  • Shared code ownership & cross-functional teams
  • Collaborative design and development
  • Pair programming

• It would be a bonus if you have experience with:

  • Building and maintaining server-side applications with Node.js
  • Working in startup or fast-paced environments
  • Taking products or features from 0-to-1, from initial concept through to production
  • Working in Financial Services or other regulated industriesAt Kinsworth we focus hard on getting the best talent into our team. We are committed to making our recruitment process transparent and simple.

We are committed to diversity and will always accommodate your needs during our hiring process.

Step 1: Meet the recruiter

If you meet the grade we will have a short discussion with you to understand you more and get to know us and the role.

Step 2: First (technical) interview

The team you could be working with will interview you. Some roles have a technical part of the interview process.

Step 3: Second (final) interview

A second stage interview will go deeper about you and how you align with us as a company.

Step 4: Decision

We will make a decision and let you know why. We will never ghost you or give you generic feedback.