Senior/Staff Backend Engineer

ABOUT THE COMPANY

We're an applied AI company building an AI-native alternative to legacy accounting software — a market worth tens of billions in annual recurring revenue. Our mission is to help entrepreneurs focus on what matters in their business and life, and to help their accountants become more strategic.

We've raised $20M from a group of top-tier investors and have grown ARR 60% month-on-month since our public launch. We now serve thousands of businesses and are expanding our product to serve accountants directly — creating a two-sided platform where both business owners and their accountants use and recommend us. We're at an early but proven stage, moving fast, and building a world-class engineering team in Wrocław to match our ambition.

ABOUT THE ROLE

We're looking for a Senior or Staff Backend Engineer to own and evolve our backend services as we scale. This is a broad, high-impact role — you'll architect new features, build the systems that underpin our core product, and set the engineering standards that shape how the whole team works.

The focus is on building a modern, AI-native developer experience. That means working closely with Product, AI, and Operations teams to design agentic systems, distributed data pipelines, and scalable incident response infrastructure — and doing it in a way that lets the team ship with confidence multiple times a day.

WHAT YOU'LL WORK ON

Architecture and feature design

Partner with Product, AI, and Operations teams to architect new features and complex agentic systems. Make clear architectural trade-offs that balance platform, product, and business goals.

Backend services and APIs

Build and maintain the backend services and APIs that power the core product. Ensure systems are secure, well-tested, and high performance.

Distributed systems

Design and implement distributed services to orchestrate data pipelines, automate investigations, and enable incident response at scale.

Operational excellence

Own operational best practices so the team can ship multiple times a day with confidence. Healthy on-call culture and strong observability are part of what you'll build and maintain.

Engineering standards

Set the bar for writing, communication, and system design across the team. Your influence will shape how a modern AI-native product is built.

WHAT WE LOOK FOR

5–10+ years of backend engineering experience

A strong track record designing, building, and operating production backend systems at scale.

Deep backend fundamentals

Expertise in API design, data modelling, and reasoning about distributed systems trade-offs. You understand the nuances, not just the patterns.

AWS or GCP hands-on experience

Solid understanding of how infrastructure decisions impact application reliability and performance. You've run things in production, not just designed them.

CI/CD in practice

Practical experience with testing and deployment strategies in high-frequency shipping environments.

Observability and on-call maturity

A solid grasp of what good observability looks like and how to build healthy on-call practices that don't burn people out.

Bonus

Experience at an early-stage or scaling startup. Exposure to modern AI and ML systems. Experience shipping product without a dedicated product manager.

TECH STACK

TypeScript, React, Node.js, AWS, Terraform, PostgreSQL, OpenAI, Azure AI. The team uses GitHub, Slack, Linear, Figma, and Notion day to day.

THE TEAM

Small, senior, and in-person. The office is in central Wrocław, next to the main train station. The expectation is 4–5 days a week in the office — this is a deliberate choice, not a compromise. Relocation support is available for the right candidate.

COMPENSATION & BENEFITS

Salary

$130,000 – $190,000 USD depending on experience, plus competitive equity.

Wellness and commute stipend

$100 per month.

Hardware

Premium hardware provided — MacBook Pro and AirPods.

Food

Daily in-office lunch and dinner.

Time off

20 PTO days plus 9 US public holidays.

Relocation

Support available for candidates relocating to Wrocław.