Skills

TypeScript PostgreSQL GraphQL Encryption Monitoring Quality Assurance Decision-making Architecture node.js tailwind Google Cloud Platform Next.js GCP Redis

Job Specifications

About The Role

We are looking for a highly skilled Senior Backend Developer to join our tech team.

As collaborative building is at the core of how we operate - not just within the engineering team but across all departments. We are developing a platform that offers an incredible opportunity to co-invest in the Private Equity sector. To achieve our vision, we need to establish both a premium brand and platform.

As our tech team continues to scale, you'll wear many hats. Your responsibilities will include:

Collaborating closely with the team on product strategy, assessing the effort required for various features, and making key technical decisions
Supporting the overall decision-making process and the company's sustained growth
Developing, deploying, and maintaining new features
Conducting code reviews and facilitating knowledge sharing within the team

What you'll work on

Cap table engine: Build systems that track ownership across thousands of investors with cent-level precision
Multi-country compliance: Implement investor qualification rules and regulatory workflows across jurisdictions
Multi-asset platform: Extend the platform to support diverse asset classes and investment structures
Financial operations: Design robust workflows for complex financial transactions and fund operations
Real-time dashboards: Create high-performance investor platform with live portfolio valuations
Document automation: Generate legal documents (subscription agreements, shareholder reports) from dynamic templates
Security: Protect sensitive financial data with robust authentication, authorization, and encryption

Technical challenges

We handle sensitive financial data, which presents us with unique challenges:

Precision at scale: Our engines compute fractional ownership across thousands of investors. Rounding errors must cascade correctly - we can't lose or create cents.

Complex financial state machines: Financial operations involve coordinated updates across multiple entities and ledger entries. State transitions must be atomic and auditable.

Multi-jurisdiction compliance: Different countries have different regulatory requirements. The system must enforce these rules programmatically while remaining flexible.

Historical reconstruction: Auditors need to see data at any point in time. Our architecture supports point-in-time queries tied to specific operations.

Domain complexity: We model sophisticated financial instruments and multi-currency valuations all with type safety.

Overall tech stack

Type Safety: 100% TypeScript across the entire stack (frontend, backend, shared libraries)

Quality Assurance

Vitest for unit/integration testing
Playwright for E2E testing
Biome for linting and formatting
Zod for runtime validation at all system boundaries

Architecture

pnpm workspace monorepo with Turborepo for build orchestration
Domain-Driven Design with 20+ shared domain libraries

Backend (your Focus)

GraphQL Yoga + Nexus for type-safe schema generation
PostgreSQL with Prisma ORM (migrations, transactions, type-safe queries)
Redis for caching and pub/sub
BullMQ for job queues with Bull Board admin UI
Zod for runtime validation at all API boundaries
Domain-Driven Design with shared domain libraries
OpenTelemetry for distributed tracing
GCP Cloud Run for container deployments

Frontend (context)

Next.js (App Router), Tailwind, Shadcn
Apollo Client for GraphQL

API Layer

GraphQL (client-facing) with type-safe resolvers
REST (admin-facing) with Zod schemas via lib/api-schemas

Cloud Infrastructure

Google Cloud Platform (Cloud Run, GCS)
Container-based deployments

Observability

OpenTelemetry for distributed tracing
Datadog for monitoring (browser + server)
Sentry for error tracking

AI Integration: OpenAnthropic-powered document analysis and data extraction pipelines

Engineering culture

Domain-Driven Design: coherent domains with clear boundaries
Strict TypeScript: No any types, Zod validation at all boundaries
Observability-first: Datadog + OpenTelemetry + Sentry from day one
Code review culture: Every PR gets thoughtful review
AI-assisted development: We leverage AI tools (IDE assistants, PR review) to augment engineers while keeping humans in the loop for all decisions

You're a great match if :

Technical Skills

5+ years building backend TypeScript/Node.js applications
Strong experience with PostgreSQL and ORMs (Prisma preferred)
Proficiency with GraphQL server development (Yoga, Nexus, or similar)
Experience with job queues and async processing (BullMQ, Redis)
Understanding of financial calculations and decimal precision
Plus: Experience with REST API design and OpenAPI/Zod schemas
Bonus: Experience with fintech, regulatory compliance, or audit trails

Mindset

You care about correctness-bugs in financial systems have real consequences
You enjoy domain complexity and learning new business concepts
You prefer clean architecture over quick hacks
You communicate clearly with non-technical stakeholders

Interest: Yo

About the Company

Roundtable is Europe's leading infrastructure for private investments, handling all legal and administrative operations so founders, angels, and fund managers can focus on what matters. Know more