Senior Backend Developer

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. Responsibilities 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 #J-18808-Ljbffr