Senior Backend Engineer - Fintech

• Needs constant direction or hand-holding
• Prefers stable, predictable environments
• Only cares about the paycheck, not the mission
• Can't handle constructive feedback or fast iteration

We're a small team where everyone has massive impact. If you want to build something that changes millions of lives while working with exceptional people, you're our person., Backend Development (Primary Focus):

• Build and maintain robust payment processing systems using TypeScript/Node.js (NestJS)
• Design and implement APIs that handle financial transactions securely and efficiently
• Create transaction routing algorithms that optimize for acceptance rates and fees
• Implement real-time messaging and event-driven architecture using CloudAMQP
• Apply DDD principles and Clean Architecture patterns to build maintainable, scalable systems

Infrastructure & Scale:

• Architect scalable database solutions using PostgreSQL for financial data
• Deploy and maintain cloud infrastructure on Render
• Ensure 99.9% uptime for mission-critical payment systems
• Implement monitoring, logging, and alerting for production systems

Product & Strategy:

• Collaborate directly with founders on product roadmap and technical decisions
• Research and integrate with multiple payment acquirers and financial institutions
• Contribute to technical documentation and API specifications

Do you have experience in TypeScript?, We're looking for a senior Backend Engineer (TypeScript/Node.js) with strong React skills who embodies both technical excellence and startup DNA., * Years of experience with TypeScript/Node.js backend development

• Strong understanding of backend architecture, APIs, and databases (PostgreSQL)
• Experience with cloud platforms (AWS) and modern development practices
• Solid React/TypeScript skills for frontend work when needed
• Bonus: Previous fintech or payment systems experience

Architecture & Craftsmanship (Must-have):

• Strong SOLID design habits
• Can design and ship features end-to-end (scoping, decomposition, technical design)
• Hands-on with DDD (domain modeling, bounded contexts)
• Familiar with Clean Architecture / Hexagonal (Ports & Adapters) principles

Startup DNA:

• High ownership mentality: You don't just code, you think about the business impact
• Thrives in uncertainty: You're energized by fast-changing priorities and ambiguous requirements
• Move fast, break things: You ship quickly, iterate based on feedback, and aren't afraid of making mistakes
• Excellence-driven: You have high standards for yourself and push others to be better
• Bonus: Previous High Level (semi-professional/professional) Athlete, Video-Games Player, Musician.

Cultural Fit:

• Direct communicator: You speak up when something isn't working and propose solutions
• Globally minded: You understand we're building for entrepreneurs worldwide
• Mission-driven: You genuinely care about democratizing access to global commerce
• Resilient: Startup life is intense; lots of work, fast decisions, high stakes; you need to handle pressure and bounce back from setbacks

Financial:

• Competitive salary
• Equity package
• Performance bonuses tied to company milestones

Professional Growth:

• Direct access to founders and key strategic decisions
• Work on cutting-edge fintech technology with global impact
• Small team environment where your contributions are immediately visible
• Opportunity to shape technical architecture from early stage

Work Environment:

• Hybrid Remote-friendly culture with flexible hours
• Modern tech stack and tools
• Fast-paced startup environment with rapid learning opportunities
• Minimal bureaucracy, focus on building and shipping

Impact & Mission:

• Every feature you build enables entrepreneurs worldwide to access global markets
• Be part of democratizing financial infrastructure for emerging economies
• Work on technology that processes real money and affects real businesses
• Join a well-funded startup ($1.1M raised) with strong investor backing and client demand

Fair Warning: This is intense startup life with high expectations, significant responsibility, and the need to move fast. Perfect for engineers who want extraordinary impact and compensation to match.

Type d'emploi : CDI

Rémunération : 4 000,00€ à 8 000,00€ par mois

Avantages :

• Intéressement et participation
• Travail à domicile occasionnel

As an Experienced Software Engineer at Inflowpay, you'll be at the forefront of building next-generation payment infrastructure that enables global commerce for emerging markets. You'll work directly with our founding team to architect, develop, and scale systems that process millions in transactions and serve businesses worldwide.