Senior/Staff Frontend Engineer (Remote)

Dualentry; Warszawa; Remote; PLN 366,000 - 643,000; Full time

Job summary

A fast-growing AI startup is seeking a Staff Frontend Engineer to enhance their product velocity and take ownership of features. The role is remote-first with an emphasis on collaboration and rapid deployment. Ideal candidates have 8+ years of frontend development experience, especially in React and Next.js. Compensation includes a competitive salary between $100K–$175K and equity options.

Benefits

Base salary $100K–$175K USD

Equity ~$40K+ USD

15 PTO days + 12 public holidays

Visa sponsorship option for relocation to NYC

High-trust, high-autonomy team

Qualifications

• 8+ years of experience in frontend development with React (Next.js a strong plus).
• Strong understanding of responsive UI, accessibility, and usability principles.
• Experience building and testing APIs; comfort with HTTP and debugging.

Responsibilities

• Build, ship, and own major parts of the product UI in React + Next.js.
• Design and optimize experiences that simplify complex workflows.
• Contribute to architecture, performance, accessibility, and responsiveness.

Skills

Frontend development with React

JavaScript

TypeScript

Responsive UI

Accessibility principles

API building and testing

Curiosity and autonomy

Tools

Postman

Job description

Why This Role Matters Now

We’re growing our Engineering team and hiring our next Staff Frontend Engineer to increase our product velocity, own features end-to-end and bring DualEntry’s AI-powered accounting platform to the world’s fastest-growing companies.

About DualEntry

Founded in 2024, DualEntry is one of NYC’s fastest-growing AI startups, backed by top-tier VCs and 30+ unicorn founders.

Our team previously built a $100M ARR business from scratch, scaled it to 300+ people, and led a successful exit. Now, we’re building a category-defining SaaS product to automate and modernize enterprise accounting — one of the most painful and outdated workflows in finance.

We move fast, build with precision, and care deeply about what we ship.

📍 Location: Remote-first with overlap to US EST working hours.

Where You’ll Create Impact

• Build, ship, and own major parts of the product UI in React + Next.js
• Design and optimize experiences that make complex workflows simple
• Work closely with product, design, and backend to ensure seamless integration and clarity
• Contribute to architecture, performance, accessibility, and responsiveness across browsers
• Help define our frontend system and component library as we scale
• Elevate the quality of the product through thoughtful details, polish, and user empathy

How You’ll Work

You’ll collaborate with:

• Founders, to understand vision and user context
• Product & Design, to shape intuitive, elegant workflows
• Backend Engineering, to align on data structures and performance

You’ll operate with full ownership: deploy daily, make fast decisions, and always aim for clarity.

What Sets You Up for Success

• 8+ years of experience in frontend development with React (Next.js a strong plus)
• Solid grasp of JavaScript and TypeScript: scoping, closures, context, prototypes, classes, etc.
• Strong understanding of responsive UI, accessibility, and usability principles
• Experience building and testing APIs; comfort with HTTP, Postman, and debugging
• Clear product thinking, eye for polish, and attention to design details
• Pragmatic mindset: you move forward, make calls, and optimize for impact
• Curiosity and autonomy — you dig in, learn fast, and solve problems without waiting

Why You’ll Thrive Here

• You’ll own large parts of the UI in a fast-growing product
• You’ll work closely with experienced founders who value product and engineering equally
>You’ll build systems, not just features — and see your work go live, fast
• You’ll have freedom to do your best work, with a team that moves fast and thinks clearly

Compensation & Benefits

• Base salary: $100K–$175K USD
• Equity: ~$40K+ USD
• Option for B2B or full-time permanent position
• Remote-first setup
• 15 PTO days + 12 public holidays
• Visa sponsorship option for relocation to NYC within 2+ years
• High-trust, high-autonomy team with real ownership

We currently have only one remaining seat for a Senior/Staff Frontend Engineer.

If you're looking to work on meaningful product challenges, ship product incredibly fast, contribute to a clean and ambitious codebase, and help shape how AI becomes usable at scale — we’d love to hear from you.