Senior Backend Developer - Toulouse (M/F)

ph3Overview /h3pbSenior Backend Developer /b needed to join our tech team. We are building a platform that offers an opportunity to co-invest in the Private Equity sector and are focused on establishing a premium brand and platform. As our tech team scales, you’ll wear many hats and collaborate across departments. /ph3Responsibilities /h3ulliCollaborate closely with the team on product strategy, assess effort required for features, and make key technical decisions /liliSupport the overall decision-making process and the company’s sustained growth /liliDevelop, deploy, and maintain new features /liliConduct code reviews and facilitate knowledge sharing within the team /li /ulh3What you’ll work on /h3ullibCap table engine: /b Build systems that track ownership across thousands of investors with cent-level precision /lilibMulti-country compliance: /b Implement investor qualification rules and regulatory workflows across jurisdictions /lilibMulti-asset platform: /b Extend the platform to support diverse asset classes and investment structures /lilibFinancial operations: /b Design robust workflows for complex financial transactions and fund operations /lilibReal-time dashboards: /b Create high-performance investor platform with live portfolio valuations /lilibDocument automation: /b Generate legal documents (subscription agreements, shareholder reports) from dynamic templates /lilibSecurity: /b Protect sensitive financial data with robust authentication, authorization, and encryption /li /ulh3Technical challenges /h3pWe handle sensitive financial data, which presents unique challenges: /pullibPrecision at scale: /b Engines compute fractional ownership across thousands of investors; rounding errors must cascade correctly /lilibComplex financial state machines: /b Financial operations involve coordinated updates across multiple entities and ledger entries; state transitions must be atomic and auditable /lilibMulti-jurisdiction compliance: /b Different countries have different regulatory requirements; the system must enforce these rules programmatically while remaining flexible /lilibHistorical reconstruction: /b Auditors need point-in-time data; architecture supports point-in-time queries tied to specific operations /lilibDomain complexity: /b Model sophisticated financial instruments and multi-currency valuations with type safety /li /ulh3Engineering culture /h3ullibDomain-Driven Design: /b coherent domains with clear boundaries /lilibStrict TypeScript: /b No any types; Zod validation at all boundaries /lilibObservability-first: /b Datadog + OpenTelemetry + Sentry from day one /lilibCode review culture: /b Every PR gets thoughtful review /lilibAI-assisted development: /b We leverage AI tools to augment engineers while keeping humans in the loop for decisions /li /ulh3Technical stack and focus areas /h3pbFrontend (context): /b Next.js (App Router), Tailwind, Shadcn; Apollo Client for GraphQL /ppbBackend (your focus): /b GraphQL Yoga + Nexus; PostgreSQL with Prisma ORM; Redis; BullMQ; Zod; Domain-Driven Design; OpenTelemetry; GCP Cloud Run /ppbAPI Layer: /b GraphQL with type-safe resolvers; REST (admin-facing) with Zod schemas /ppbCloud Infrastructure: /b Google Cloud Platform (Cloud Run, GCS) /ppbObservability: /b OpenTelemetry; Datadog; Sentry /ph3Requirements /h3pbTechnical skills: /b /pulli5+ years building backend TypeScript/Node.js applications /liliStrong experience with PostgreSQL and ORMs (Prisma preferred) /liliProficiency with GraphQL server development (Yoga, Nexus, or similar) /liliExperience with job queues and async processing (BullMQ, Redis) /liliUnderstanding of financial calculations and decimal precision /liliPlus: Experience with REST API design and OpenAPI/Zod schemas /liliBonus: Experience with fintech, regulatory compliance, or audit trails /li /ulpbMindset: /b /pulliYou care about correctness; bugs in financial systems have real consequences /liliYou enjoy domain complexity and learning new business concepts /liliYou prefer clean architecture over quick hacks /liliYou communicate clearly with non-technical stakeholders /li /ulpbInterest: /b Genuine interest in angel investment and the venture capital world /ppbEntrepreneurial mindset: /b Thrive in fast-paced environments with broad responsibilities /ppbOwnership mentality: /b Doer with a bias for action; no task is below you /ppbOrganization skills: /b Ability to prioritize and split tasks efficiently /ppbTeam player: /b Enjoy sharing and learning from others /ppbInitiative and innovation: /b Propose improvements and challenge assumptions constructively /ppbProduct lover: /b Understand and deliver a strong UX for users /ppbSystems thinking: /b Ability to rethink the overall model /ppbStrong attention to detail: /b Code quality matters and you set a high bar /ph3What we offer /h3ullipbA front-row seat in a fast-growing startup /b shaping the future of investment operations /p /lilipbA quality-driven environment /b /p /lilipbAwesome colleagues /b with high ambitions /p /lilipbCulture of ownership, collaboration, learning and growth /b /p /lilipbBeautiful offices in central Paris, Toulouse and Luxembourg /b plus flexible remote options /p /lilipbCompetitive compensation /b (including an employee stock options plan) /p /lilipbOther perks / terms: /b /pulliTime off: 25 days of holidays + RTT days /liliHealth insurance: Mutuelle Alan (50% covered by the company) /liliMeals: Swile restaurant card (10€ per workday) /liliTools: A MacBook is our standard working tool /liliTransportation: Forfait Mobilité Douce (540€/year) /li /ul /li /ulh3Recruitment process /h3ulliFirst interview with our Talent Recruiter /liliSecond interview with Simon, our Founder CTO /liliCase study with a tech team member /liliCultural fit with another founder /li /ulpRoundtable is committed to creating a diverse environment. All qualified applicants receive consideration for employment irrespective of gender, origins, identity, background, and orientations. We encourage all applicants, especially those from underrepresented groups, to apply. Diversity, equity and inclusion are fundamental pillars. /p /p #J-18808-Ljbffr