You'll work in TypeScript and React on the front end, Python (FastAPI or Django) on the back end and PostgreSQL on AWS. This role is part of a nine-person engineering cohort being hired across full-stack, front-end and back-end.
TresVista has run the analytical work behind private capital since 2006. 2,000 people, 400+ clients including some of the biggest names in the industry, no outside capital and no outside board. That was the first chapter. And we enjoyed getting here!
We are moving from services to software, from one firm's workflows to an industry's, and from executing investment decisions to shaping how they get made. Thirty of us in King's Cross, small and senior, with day one founder intensity.
At its fullest expression, Descrial changes how every serious investment firm decides.
You report to the Head of Engineering and join the UK core team. You own features from schema to screen, set technical direction where it matters and ship in short cycles with product managers, designers, QA and our client-facing teams.
You build data-heavy interfaces in TypeScript and React, making sound choices on server or client rendering and on state management with Redux, Zustand, TanStack Query or similar. You turn product requirements and Figma designs into accessible, consistent UI and help grow a shared component library. The interface respects a detailed role- and permission-based access model, and real-time views over WebSockets handle loading, empty, error and stale-data states with care.
You design and build REST services in async Python with FastAPI or Django and Pydantic, with clear OpenAPI contracts and backwards-compatible changes. You model domain data in PostgreSQL, covering schema design, migrations, indexing, query tuning and multi-tenant isolation, and use Redis and OpenSearch or Elasticsearch where they fit. You build event-driven and background processing with queues such as SQS or Celery, including retries, idempotency, search indexing, audit events and notifications.
You implement authentication and authorisation end to end: SSO, OTP, session and JWT handling, and role-based checks on every request. Security and compliance (SOC 2, UK GDPR) shape the work: tenant isolation, least-privilege access, audit logging and secure file handling. You build integrations with the systems our clients use, such as Microsoft 365 through the Graph API (Outlook, Teams, SharePoint), CRMs, HR systems and document stores, using OAuth and careful secrets handling.
You work with the AI/ML team to bring LLM-powered features into the product. You build the Python layer between the product and our AI services, including streaming responses, document processing endpoints and safe access for AI agents to internal services through MCP. You design the experience around AI output so investment professionals can trust and audit it, with source citations, clear provenance, edit and approve flows, feedback capture and graceful failure handling.
You write well-tested code (unit, component and end-to-end), take part in thorough code review and keep the CI/CD quality gates healthy. You own front-end performance for what you ship. You deploy and operate services on AWS with containers and Kubernetes, S3, SQS and EventBridge, instrument them with logs, metrics and traces, and help fix production issues.
This will be difficult.
It demands pace and accuracy. We are building autonomous systems inside high-stakes live businesses, where decisions carry real consequences and impact and waiting for everyone to agree is not always an option.
The systems will sometimes get things wrong. In this phase the London team needs to create the evaluations, visibilities and safeguards that catch mistakes early, reducing them over time and stopping the same failures happening again.
If you want to build the foundations of an enterprise grade technology platform to service a multi-billion $ serviceable market opportunity, and share in that growth, this is your chance to join us.
Come ready to discuss three pieces of work:
The all-inclusive package is typically £85,000–£105,000 a year, depending on experience.
You do not need to meet every qualification to apply. Strong candidates bring different combinations of experience, judgement and potential, and we know that some people are more likely than others to underestimate what they could contribute. If the work interests you and you believe you could make an impact, we encourage you to apply.
The systems we are building will influence how important investment decisions are made. That makes a range of experiences and perspectives essential to building them responsibly. We want a team where different viewpoints are heard, respected and reflected in the work.
Descrial does not receive a stack of CVs. We interview you ourselves, and only put you forward with our own assessment attached.
Once we introduce you, Descrial runs its own process.
They aim to complete the process within three weeks.
We read every application properly. You will always be able to see where yours has got to.
Apply for Full-Stack EngineerREF JDR-DES-0012
One a week, never sold on, and one click to stop.
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