Frontend Software Engineer (Mid-Level)

Dualentry; Warszawa; Remote; PLN 255,000 - 530,000; Full time

Job summary

A fast-growing AI startup is looking for an experienced Frontend Engineer to take ownership of major product surfaces in a remote-first environment. You will be responsible for building high-performance UI and collaborating closely with cross-functional teams. This role offers significant equity ownership and the opportunity to work in a high-speed culture focused on innovation and growth.

Benefits

Base Salary: $70K–$145K USD

Equity: ~$40K

15 PTO days + 12 public holidays

High autonomy in an early-stage role

Qualifications

• 5+ years of experience in frontend development.
• Proven track record in high-growth environments.
• Experience with Next.js is a strong plus.

Responsibilities

• Own end-to-end execution for core frontend features.
• Build intuitive, high-performance UI.
• Collaborate with product and design teams.

Skills

Frontend development with React

JavaScript/TypeScript fundamentals

Responsive UI design

API building and testing

Clear product intuition

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 Frontend Engineer, you’ll own and build major product surfaces end-to-end. 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

• You’ll own end-to-end execution for core frontend features in React + Next.js
• You’ll build and deliver intuitive, high-performance UI that makes complex workflows simple
• You’ll collaborate with product, design, and backend engineering to ship fast and with clarity
• You’ll strengthen our frontend architecture, performance, accessibility, and responsiveness
• You’ll help shape our component library and frontend system as we scale
• You’ll elevate the quality and polish of the product with user empathy and attention to detail

What sets you up for success

• 5+ years experience in frontend development with React (Next.js a strong plus)
• Proven track record in high-growth environments
• Deep expertise in JavaScript/TypeScript fundamentals and modern frontend principles
• Strong grasp of responsive UI, accessibility, and usability
• Comfort building and testing APIs; experience with HTTP, Postman, debugging
• Clear product intuition, design sensitivity, and craftsmanship
• Pragmatic mindset with high-speed execution
• Curiosity, autonomy, and ownership

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: $70K–$145K USD
• Equity: ~\$40K
• 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.