Backend Software Engineer (Mid-Level)
- Remote
- Warsaw, Warmińsko-Mazurskie, Poland
- Brazil, São Paulo, Brazil
+1 more- $65,000 - $135,000 per year
- Engineering
Job description
Why This Role Matters Now
Since launching 18 months ago, we’ve raised $100M with backing from Lightspeed, Khosla, and Google Ventures. We got there by moving incredibly fast and hiring the best and brightest talent. To accelerate that momentum, we’re growing our team. Come and join us at one of NYC’s fastest-growing startups and have an impact on our product from day one.
As our Backend Engineer, you’ll build and own critical features end-to-end, increasing product velocity and powering DualEntry’s AI-native ERP. This is an intense, hands-on role with full ownership.
You’ll be joining at an early and defining moment. Your work will directly shape our product, customers, and trajectory.
📍 Location: Remote - this role is available across all EU/LATAM countries with overlap for the US ET timezone (NYC HQ)
About DualEntry
Founded in 2024, DualEntry is one of NYC’s fastest-growing AI startups.
DualEntry is changing the future of finance. Our AI-native ERP lets teams achieve more in less time. $5M-ARR businesses and NYSE-listed companies trust DualEntry to automate away busywork and fuel their growth with powerful reporting and insights. We’re making the one-person finance team a reality and putting the pain of legacy ERPs from the 1990s in the past.
We operate with urgency and ownership. We move fast.
Where you'll create impact
Design and build core backend systems using Python
Build APIs, services, and infrastructure handling real-time, business-critical accounting logic
Launch production-ready features from scratch, including CI/CD and deployment
Turn complex finance workflows into performant, secure systems
Manage complexity in a business-logic-heavy product, including migrations and scale
Integrate third-party tools and external systems while proactively managing risk
Own work from architecture to testing, monitoring, and post-release care
Collaborate closely with founders, product, and frontend to co-design systems and ship seamlessly
Ship fast, make architectural calls, and deploy to prod daily
What sets you up for success
5+ years of backend engineering experience
Deep experience with complex business-logic products
Proficient in Python and modern frameworks (FastAPI, Flask, Django)
Strong AWS (or similar cloud) experience
Excellent database skills: PostgreSQL, SQL, ORMs, migrations, schema design
Experience building and testing robust APIs
Solid understanding of CI/CD and production-readiness
Ability to manage complex systems with evolving requirements
Fluent in English (C1+) with strong communication skills
Pragmatic, curious, fast-moving, and highly focused on execution
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 culture
High-trust environment with high expectations
Ambitious mission
Benefits
Base Salary: $65K–$135K USD
Equity: ~$30K
Contract type: B2B
Remote-first team — the fastest team you will have ever worked with
Time Off: 15 PTO days + 12 public holidays
Early-stage role with high autonomy and real long-term upside
If you’re excited by fast-pace building, ownership, and the chance to define the future of finance technology, we’d love to hear from you!
At DualEntry, we believe great products come from diverse teams.
We’re an equal opportunity employer, and we’re committed to a culture where everyone feels included, supported, and able to do their best work.
or
- Warsaw, Warmińsko-Mazurskie, Poland
- Brazil, São Paulo, Brazil
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