Senior/Staff Backend Engineer

DualEntry; France; Hybride; GBP 106 000 - 189 000; Plein temps

Avantages offerts par ce poste

Equity

Base salary

Remote-first team

Home internet & workspace support

PTO 27 days

AI token usage

Learning budget

Visa sponsorship & relocation

In-person team meetups

Résumé du poste

DualEntry is building the OS for finance, with a remote-first engineering culture. You will design and ship backend systems handling real-time accounting logic, integrate external tools, and maintain production readiness across fast-paced, edge-case driven work.

5+ years in backend engineering and strong PostgreSQL skills are expected, with Python and FastAPI/Django knowledge a plus. Join a high equity, remote-first team that moves quickly, ships daily, and grows with the company.

Qualifications

• 5+ years backend engineering experience across languages.
• Deep experience with complex business logic products.
• Strong database design and PostgreSQL expertise.

Responsabilités

• Design backend systems and APIs that run real-time accounting logic.
• Ship features end to end including architecture, CI/CD, testing and monitoring.
• Integrate third-party tools and external systems while handling edge cases and risk.
• Collaborate with the team to maintain production readiness.

Connaissances

Backend engineering

PostgreSQL

SQL

ORMs

Migrations

Schema design

AWS

CI/CD

Production-readiness

Edge case handling

Outils

Python

FastAPI

Flask

Django

CI/CD pipelines

Description du poste

About DualEntry

DualEntry is building the OS for finance.

Every business needs a financial system of record, yet the world's largest fintech market ($220B+) still runs on software from the 1990s. DualEntry's AI-native ERP automates accounting from data entry to close, so finance teams move faster, spend less and incur less risk.

In just 2 years we've raised $100M+ from Lightspeed, Khosla Ventures, Contrary and Google Ventures and earned the trust of customers from $5M ARR to publicly traded companies.

We hire outliers - people who have achieved difficult things, in their careers or beyond. You'll find leaders, colleagues who've competed at the highest levels of sport, performed on Broadway, trained with UFC champions and founded the country’s largest Python community.

Where You'll Create Impact

• Build!

• Design backend systems and APIs (Python preferred) that run real-time, business-critical accounting logic

• Ship features end to end - architecture, CI/CD, testing, monitoring, and beyond

• Integrate third-party tools and external systems, proactively managing edge cases and risk

What Sets You Up for Success

• Hardcore work ethic and high agency

• 5+ years in backend engineering (language agnostic)

• Deep experience with complex business logic products

• Strong database skills: PostgreSQL, SQL, ORMs, migrations, schema design

• Experience deploying on AWS (or similar), with solid CI/CD and production-readiness fundamentals

• Bonus: Python and a modern web framework (FastAPI, Flask, or Django)

Why You’ll Thrive Here

• Significant equity ownership in one of the top AI companies in the world

• You’re joining early and will grow with DualEntry

• Your feedback shapes the product directly

• High-speed, high-trust environment with high expectations

Meet the Engineering Team

• Ignacio shaped the baseline of our integration framework from scratch in a single weekend, then spent most weekends - while coordinating the team - shipping what was never on the roadmap: webhooks, a search engine for millions of transactions, and Puma itself. Pure initiative, compounding.

• Marcin took a non-existent tax structure and built it end to end, setting the north star for how the team keeps improving it on top of it; modular and robust, always setting the bar for the rest.

• Puhiza grew her team from one to full capacity, while owning our integration framework end to end; scaling it to support migrations, integrations, and bank connections. The queen of I/O on our platform.

• Danylo took ownership of our bank connection engine end to end and rebuilt it from scratch over a weekend.

How You Operate

• Pragmatic: you like to move forward and make decisions based in reality (not theory). We don't debate if Cassandra has the most theoretical scalability - we use Postgres until it breaks

• Hard working: 'You can work long, hard, or smart, but [here] you can't choose two out of three' - Jeff Bezos.

• Curious: you love to learn, are highly curious about new frameworks and solutions to engineering problems

• Fast-moving: you deploy daily, iterate quickly, and never wait for permission

Benefits & Compensation

• Equity: $50,000 - $80,000

• Base salary: $140,000 - $250,000

• Remote-first team - the fastest team you will have ever worked with

• Home internet, co-working space & office setup support

• Flexible PTO (27 days incl. public holidays)

• Unlimited AI token usage

• AI skills development & enablement

• Learning & development budget for courses, certifications & language learning

• Visa sponsorship and relocation support for a move to NYC (after 2 years’ tenure)

• In-person team meetups (our last ones: Lisbon, Vienna, Warsaw, Cyprus, and more!)

“Join us to fix the boring, think the hard, and build the impossible, so we become the most robust engineering platform for accounting the world has ever seen.”

Ignacio Brasca, Head of Engineering at DualEntry