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Base pay range
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Application Software Engineer (Full Stack)
Who we are:
interactive investor is an award-winning investment platform that puts its customers in control of their financial future. We’ve been helping investors for nearly 30 years, seeing market highs and lows and staying resilient throughout. We are now the UK’s number one flat‑fee investment platform, with assets under administration approaching £75 billion and over 450,000 customers. For a simple, flat monthly fee we provide a secure home for your pensions, ISAs and investments, along with a wide choice of over 20,000 UK and international investment options, including shares, funds, trusts and ETFs. We also bring impartial expert content from our award‑winning financial journalists, a highly engaged community of investors, and daily newsletters and insights.
Role Purpose
The role is to design, build and support highly scalable, highly available, performant distributed applications to support our web, mobile and business platforms. We are looking for a developer who is excited about building cloud‑based applications and deploying small changes often.
Responsibilities
 * Provide direct support for ensuring squad solutions are architected in line with the strategic alignment of the technology area.
 * Ensure smooth transition of technical solutions and knowledge to the wider team at all levels of technical capability.
 * Support discovery, architecture and design of new and more complex solutions and patterns for delivery streams.
 * Work with the Principal Engineer to establish new patterns and architectural designs, or support significant change to existing solutions.
 * Support architecture decisions and solution design processes to an aligned strategy across all technology disciplines where solutions integrate.
 * Contribute to enabling a culture of technical development and innovation within the team through fit‑for‑purpose solution design and R&D activities.
 * Enable development of technical skills within the squad and team through knowledge transfer of emerging technologies and modern ways of working, ensuring high standards remain at the forefront.
 * Ensure architectural solutions align with control standards applicable to the solutions developed within the team.
 * Support the definition of change‑specific NFR considerations as part of any solution design or architectural decision.
 * Ensure clear alignment to assigned solutions within the change/priority pipeline and raise risks appropriately.
 * Support the full development cycle of solution designs to all disciplines, including testing.
 * Proactively identify efficiencies around process, solutions and technology.
 * Take ownership and manage delegated subsets of the technical domain for the Engineering Manager and Principal Engineer.
 * Apply risk considerations to any solution design/architectural decision, highlighting considerations and options as part of any documented solution.
 * Ensure full‑stack security considerations are included in all architectural decisions and subsequent solutions.
 * Act as a ‘code guardian’, ensuring the quality of code delivered through the team is of the expected high standard and supporting the development of individuals to consistently meet these standards.
Experience
 * Proven experience in a development environment for the technology area.
 * Previous experience delivering change to business‑critical, highly available customer‑facing platforms.
 * A broad technical background with proven experience supporting diverse technical integrations.
 * Experience supporting the delivery of change across the full project lifecycle from initiation to live support.
 * Experience delivering successful change through different methodologies including agile and waterfall.
 * Proven experience working autonomously and owning assigned project deliverables.
Technical Skills
 * React – Client‑side SPA frameworks, specifically in the React ecosystem for web and mobile‑native (React DOM, React Native).
 * Kafka, Mongo, Elastic Search and Redis.
 * HTML.
 * Server‑side SSG and SSR (Next.js, etc).
 * SEO and SEF.
 * Architecture and Design Skills.
 * Distributed Systems and architectural experience of microservices, event‑driven architectures and serverless.
 * AWS Cloud including Step Functions, Lambda and general AWS architecture.
 * Expertise in DevOps and container environments including Kubernetes.
 * Group Personal Pension Plan – 8% employer contribution and 4% employee contribution.
 * Life Assurance and Group Income Protection.
 * Private Medical Insurance – Provided by Bupa.
 * Staff Discounts on our investment products.
 * Personal & Well‑being Fund – Supporting your physical and mental wellness.
 * Retail Discounts – Savings at a wide range of high street and online retailers.
 * Voluntary Flexible Benefits – Tailor your benefits to suit your lifestyle.
Seniority level
Mid‑Senior level
Employment type
Full‑time
Job function
Engineering and Information Technology
Manchester, England, United Kingdom
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