Founding Backend Engineer

Dealflow - Invoicing

Founding backend engineer at Dealflow, crafting scalable systems for SMB invoicing platform. Join us to empower business owners with financial expertise and transform capitalism.

Posted 5/8/2026full-timeRemote • 🇩🇰 DenmarkMid-LevelSenior💰 €5,000 - €7,000 per monthWebsite

Tech Stack

Tools & technologies

AWSCyber SecurityPython

About the role

Key responsibilities & impact

Translate technical requirements into detailed backend designs that creates tier 1 scalable systems and a joyful experience for the customer.
Be responsible for driving innovation, maintainability, improving performance, scalability, and creating headless systems under strict timelines.
Lead backend engineering and solve complex problems such as: Ensuring optimal schema design, 100% uptime and high-end security.
Credit scoring system → what’s the best way to gamify the credit scoring experience for our customers while ensuring a high ROI on lending bets?
Invoice matching algorithm → what’s the optimal way to match invoices to deposits accurately at scale when we lack information?
Payment orchestration → how can we best optimise our payment orchestration to lower our costs and increase our margins?
Analytics system → how can we set up an analytics system that tracks all relevant numbers?
Integrate our technology with the following external systems: Payment processors like Stripe. Open banking platforms like Plaid. Accounting systems like QuickBooks and Economic -> Bonus points for submitting your application with GitHub links to applications you have developed

Requirements

What you’ll need

Experience in python (4+ years)
Experience in AWS ecosystem (4+ years)
Experience with banking integrations (1+ years). Not required but valued.
Experience with accounting integrations (1+ years). Not required but valued.
Experience with payment gateways and processors like Stripe (1+ years)
Experience with backend development and different technologies (MQ’s, cache’s, architectural patterns, etc..)
Experience with writing tests (Unit / Integration / Performance)
Hands on with performance and optimisation problems and demonstrated ability to diagnose and prevent these problems.
Extreme attention to detail, obsession for scalable systems
Hands-on with CI/CD We use GitHub Actions, AWS code deploy
Working knowledge of cyber security
Experience with postman

Benefits

Comp & perks

Salary: Starting at €5000 / month.
Includes serious warrants 1 - 7%, depending on the match.
Clear timeline to promotion / cash and equity bonuses.
Remote-first team: We're based across US, EU and Asia, with plans to bring in team members from all sorts of places.
Flexible working hours: We use meetings when needed and not per default.
We take care of you: Weekly remote team lunches, high quality tea, covered co-working space.
Overall we'll get you whatever you need.
Make a big difference: Take, own and implement decisions to build Dealflow.

ATS Keywords

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Hard Skills & Tools

PythonAWSBackend developmentPayment gatewaysPayment processorsBanking integrationsAccounting integrationsWriting testsPerformance optimizationCyber security

Soft Skills

Attention to detailProblem-solvingInnovationLeadershipCommunication