Senior Software Engineer - M/F

About the team

Roundtable was founded by an experienced and well-matched team: Evan (CEO), Julien (CPO) and Simon (CTO) who has been an entrepreneur for more than 10 years now. Today, we are a team of 10.

About the role

We are looking for a highly skilled Senior Software Engineer to join our tech team.

As a small team, collaborative building is at the core of how we operate—not just within the engineering team but across all departments. We are developing a product 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

Technical environment

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

Security: Data is extremely sensitive, making security a top priority.

Accuracy: Computations must be exact down to the cent at all times.

Code Quality: Our tech stack must be robust enough to pass regulatory audits.

Scalability: Both the data and IT architecture must be functionally and technically scalable. For example, one challenge in our data model involves complex equity flows through multiple layers of intermediaries. The data model must accurately compute ownership and be flexible enough to adapt to different countries’ legal contexts.

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 shared libraries

Application Layer:

- Frontend: Next.js (App Router + Turbopack), Tailwind

- Backend: Express & GraphQL Yoga (Nexus schema)

- Database: PostgreSQL

- Job Queue: BullMQ with Redis

API Layer:

- GraphQL (client-facing) with Apollo Client

- REST (admin-facing) with Zod schemas via lib/api-schemas

Cloud Infrastructure:

- Google Cloud Platform (Cloud Run, GCS)

- Container-based deployments

Observability:

- OpenTelemetry for tracing

- Datadog for monitoring (browser + server)

- Sentry for error tracking

Cloud Infrastructure: Google Cloud Platform, Container-on-demand & Kubernetes-oriented

You’re a great match if

You have 5+ years of software engineer experience on full-stack web apps.

Interest: You have a genuine interest in angel investment and the venture capital world.

Entrepreneurial mindset: you thrive in fast-paced environments where you have broad responsibilities

Ownership mentality: you are a doer and have a bias for action, no task is below you

Organization skills: you know how to prioritize and split your tasks efficiently

Team player: you enjoy sharing and learning from each other

Initiative and innovation: you don’t hesitate to challenge and suggest new practices

Product lover: you fully understand what we want to bring to our users, and you are eager to deliver the best possible UX to them

Abstraction ability: you are able to step back and rethink our model globally

Strong attention to details: code quality is important for you and you set a high bar.

Benefits

Challenging work experience building and owning an ambitious product

Quality-driven environment

Competitive compensation and equity package

Awesome colleagues with high ambitions

A strong product and technical culture

Lovely offices located in the heart of Paris

Roundtable is committed to creating a diverse environment. All qualified applicants will receive consideration for employment irrespective of gender, origins, identity, background and orientations.

We are aware there’s a long way to go with regards to diversity in our industry, which is why we encourage all applicants- and especially those listed above- to apply to our open positions.