Senior Software Engineer

About Cur8 Capital

Cur8 Capital is an FCA-regulated investment platform for people who refuse to compromise their values. We're the investment arm of IslamicFinanceGuru, putting institutional-grade opportunities across real estate, private equity, venture and income in reach of an audience the industry has long overlooked. More than £200M has been invested through the platform, and we're breaking our own records every quarter. We're a small team out to close a real wealth gap.

The role

This isn't quite the job most of us trained for. AI agents now write most of the code and draft much of the spec, working inside autonomy tiers you set, with you reviewing before anything merges. What they can't do is decide what must be true, hold the domain and system knowledge they have no way to learn, and answer for what goes live. That judgement is what we hire for, and because the boundary between known work and judgement work keeps moving, we look for people who pin themselves to the judgement rather than to the tasks they do by hand today.

You'll build, run and own real services in our investment platform: NestJS and TypeScript on Postgres and AWS, with a "you build it, you run it" mindset. Every release you make touches real people's savings.

What you'll own

• Name what must be true. Decide the commitments for your area, the invariants that can never quietly break: balances reconcile, permissions stay explicit, customer harm stays bounded, failure stays inspectable. Hold the domain and system knowledge an agent has no way to learn, and write it down so it can act on it.

• Direct the build. Turn intent into safe, reviewed, working change. Set the autonomy tier for the work, make the design calls, review before merge, and own the result.

• Make it checkable. Strong tests, deterministic checks over prompts, observability with Sentry and CloudWatch, and guardrails that catch a bad change before it reaches an investor.

• Run what you build. Own deployment, CI/CD and infrastructure as code with Terraform, and the day-to-day health of your services.

• Improve how we build. Better patterns, tooling, prompts, evals and checks, down to how we grade a new model before it earns more autonomy.

• Answer for what goes live. Stay accountable for what reaches real investors, and write down the decisions behind your work so the next person can build on them.

What we're looking for

• Deep knowledge of the domain, the product and the system as your edge, and the judgement to decide what must be true and what can never be allowed to break.

• Several years building and running production services, enough to know what good design looks like and why it matters.

• Expert with TypeScript and Node.js (we use NestJS) and a relational database like Postgres, and comfortable across APIs, AWS and infrastructure as code (Terraform).

• Fluent at directing AI tools like Claude Code and Cursor, and clear-eyed with them: when an agent writes the spec, you can still catch the fault hidden in it.

• A reliability instinct: monitoring, observability, and making correctness checkable rather than assumed.

• A habit of writing things down, so what you know is available to your teammates and the agents working alongside you.

• Clear communication for a hybrid team spread across several timezones.

What we mean by senior

We think in terms of core, specialty and level. Core is what every engineer answers for: full-stack judgement and knowing the infrastructure. Your specialty is the part of how we build that you make better. Level is how much you can answer for: the calls others build on, the parts of the platform you own, and the standard you set.