Founding backend engineer
🔒 Confidential Employer
Posted 7 May 2026
LOCATION
Remote
TYPE
Full-time
LEVEL
Mid-Senior level
CATEGORY
Technology
This employer holds a UK Home Office sponsor license — sponsorship for this specific role is at the employer’s discretion
SKILLS
Python
AWS
Stripe integration
Payment orchestration
CI/CD (GitHub Actions)
Performance optimization
Unit testing
Postman
FULL DESCRIPTION
Founding backend engineer
Company: [Employer hidden — sign up to reveal]
Location: Remote (CET +- 2)
Salary: €5,000 - €7,000/month
Job Type: Full-time, Employee
Experience Level: Mid-Senior level
About [Employer hidden — sign up to reveal]
[Employer hidden] is a next-generation invoicing platform that empowers online SMBs to send and pay invoices. Our vision is to build the world's most accurate financial AI agent for SMBs. We are on a mission to empower business owners with financial expertise and accelerate the transition to spiritual capitalism. Read more here.
What We're Looking For
- Spiritual maturity: A truly good person with strong character and values, able to build trusting relationships in high-stress environments.
- Analytical intelligence: Highly comfortable with numbers, complex problem solving, automation, and an obsession for details.
- Hunger: Exceptionally motivated with a strong growth mindset and bravery to aim for #1.
Tasks
- Translate technical requirements into detailed backend designs creating tier 1 scalable systems and a joyful customer experience.
- Drive innovation, maintainability, performance, scalability, and headless systems under strict timelines.
- Lead backend engineering and solve complex problems: optimal schema design, 100% uptime, high-end security, credit scoring gamification, invoice matching algorithm, payment orchestration, analytics system.
- Integrate with external systems: Stripe, Plaid, QuickBooks, Economic.
Requirements
- 4+ years Python
- 4+ years AWS
- 1+ years banking integrations (valued)
- 1+ years accounting integrations (valued)
- 1+ years payment gateways (Stripe)
- Backend development experience (MQ, caches, architectural patterns)
- Experience with tests (Unit/Integration/Performance)
- Performance and optimisation problem diagnosis and prevention
- Extreme attention to detail, obsession for scalable systems
- Hands-on with CI/CD (GitHub Actions, AWS CodeDeploy)
- Working knowledge of cyber security
- Experience with Postman
Benefits
- Salary starting at €5000/month plus serious warrants (1-7%)
- Remote-first team across US, EU, Asia
- Flexible working hours
- Weekly remote team lunches, high quality tea, co-working space covered
- Make a big difference – own and implement decisions to build [Employer hidden — sign up to reveal]
Application Process
- Initial interview with Seb (30-45 min)
- Technical challenge
- Final interview with Seb (1h)
- Reference call with former colleagues and investor/advisors
- Offer
Apply via [Employer hidden — sign up to reveal] or the [Employer hidden — sign up to reveal] careers page.
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