Senior Frontend Developer (React/Next.js)

Afternow; Polska; Hybrid; PLN 147,000 - 196,000; Full time

Benefits offered by this job

Fully remote

Flexible hours

Competitive salary

Job summary

Afternow is seeking a Senior Frontend Developer to lead the frontend of our B2C Shop and B2B Vendor Portal. You will build high-conversion storefronts and complex dashboards, turning Figma designs into performant UI within a multi-repo architecture.

You should have 5+ years in React/Next.js, strong TypeScript, TailwindCSS, TanStack tools, and a design-system mindset. Fluency in English is required; knowledge of Spanish is a plus. This is a fully remote, international role with flexible hours.

Qualifications

• 5+ years building React/Next.js applications for B2B/B2C.
• Strong TypeScript skills, generics/utilities, and Zod validation.
• Proficiency with TailwindCSS and a design system.

Responsibilities

• Architect reusable components in a shared library for multiple portals.
• Manage server and client state with TanStack Query and Zustand.
• Translate Figma designs into pixel-perfect, responsive UI.
• Implement high-performance data grids and forms with React Hook Form.
• Ensure RBAC, authentication flows, and secure UI visibility.
• Optimize Next.js Server Components and code-splitting for speed.
• Write tests to prevent regressions in production.

Skills

Frontend Specialist

React/Next.js

TypeScript

Generics & Utility Types

Zod

TailwindCSS

shadcn/ui

TanStack Query

Zustand

Performance Optimization

UI Design Translation

OpenAPI/Swagger

English Communication

Tools

TanStack Query

TanStack Table

React Hook Form

Zod

TailwindCSS

shadcn/ui

Radix UI/Headless UI

Next.js

Job description

Quick Summary

Start Date: ASAP

Project Focus: We’re looking for a Frontend Expert to develop the functional and styled frontend based on the given Figma designs. Build the storefronts and supplier management hubs for a massive digital retail ecosystem. You will transform complex B2B/B2C designs into high-performance web experiences for the LATAM market.

Hours: Full-time

Location: Fully remote

Time Zone: Looking for people in Europe or LATAM

Language: Native or professional English required. Spanish is a strong bonus, as the project is targeting the Latin American market.

Experience: 5+ years of experience in Frontend Engineering. You must have deep expertise in React, TypeScript, and Next.js. Experience with modern tooling (TailwindCSS, shadcn/ui, TanStack Query, Zustand) is required.

Salary Range: €3,000 - €4,000/month gross (dependent on experience level)

About Afternow

We are partners in your digital journey. We bring together strategy, design, and technology to build systems that flex as your future unfolds.

Afternow creates the digital systems brilliant companies are built on. Strategy, identity, web and product design, and technology that scales. Every part of the process supports and informs the other, creating an environment that works today and adapts to wherever the business goes next.

We work primarily with ambitious, digitally focused organizations navigating change. From startups finding their footing, to scale-ups building momentum, to established enterprises reshaping their digital foundations. Our partnerships are built on clarity, craft, and care.

Since 2012, we’ve grown from our roots on Island Krk, Croatia, to a fully remote team of more than thirty talented people working across the globe. We’ve partnered with companies including AWS, ThoughtSpot, Progressive, Descartes, ShipBob, Quillbot, Teachable, Crisp, CloudZero, Kinetik, and many more.

4.6 Glassdoor Rating - Join our team and discover why our people consistently rate us so highly.

The Role

We are seeking a Senior Frontend Developer to lead the frontend implementation of our B2C E-commerce Shop and B2B Vendor Portal. You won’t just be building landing pages; you will be architecting a high-conversion retail engine. This includes complex inventory dashboards, predictive reordering interfaces, and supplier management tools. You will work within a Multi-Repo architecture, consuming and contributing to an internal shared components library.

What You’ll Do

• Component Architecture: Actively contribute to the shared internal Next.js components library based on shadcn/ui and TailwindCSS. You will build reusable components (Product Cards, Multi‑select Filters, Inventory Grid, DataTables) used by all portals.
• Complex State Management: Manage server state using TanStack Query (caching, optimistic updates) and client state using Zustand.
• Design-to-Code: A keen eye for detail. You can take Figma designs and translate them into pixel‑perfect, responsive layouts.
• High-Performance Data Grids: implementation of TanStack Table (Headless UI) to render, filter, sort, and paginate a large amount of records without performance lag.
• Form Engineering: Build forms using React Hook Form and Zod. You will implement strict client‑side validation logic that mirrors backend constraints.
• Security & Auth: Handle authentication flows, ensuring strict RBAC (Role‑Based Access Control) visibility for UI elements.
• Performance Optimization: Ensure "Cold Starts" under 3s and lightning‑fast transitions. You understand how to optimize Next.jsServer Components (RSC) and implement effective code‑splitting.
• Quality Assurance: Write tests for critical user flows to ensure zero regressions in production.

What We’re Looking For

• 5+ years of professional experience building React/Next.js applications.
• TypeScript: You don’t just use any. You use Generics, Utility Types, and Zod inference to ensure type safety from the API response to the UI component.
• Modern CSS: Mastery of TailwindCSS. You understand the utility‑first philosophy and how to configure a design token system.
• Library Experience: Hands‑on experience with TanStack Query (React Query), TanStack Table, and React Hook Form.
• Design System Mindset: Experience working with component libraries (Radix UI, Headless UI, or building your own) is crucial.
• Performance Tuning: You know how to debug re‑renders, use useMemo/useCallback correctly, and code‑split heavy bundles.
• API First: Work closely with Backend Engineers to consume OpenAPI/Swagger generated types, ensuring the frontend remains in sync with our Java Spring Boot microservices.
• Domain Knowledge: Experience in E-commerce, Fintech, or Retail (Marketplaces, Warehouse, and Inventory Management systems) is a massive plus.
• Language: Fluent English is mandatory. Spanish is a plus for understanding the context of the systems you are building and communicating with the client.

What To Expect

• Flexibility - We have standard 40‑hour work weeks. While our agency working hours are from 9 am to 7 pm CET, you’ll have the freedom to work flexible hours and maintain a healthy work‑life balance. Just make sure the majority of your working hours fall within that time frame.
• Remote work & Tooling - We operate as a fully remote team. We utilize HubStaff for time tracking and work transparency. We value trust and output, and these tools help us streamline administrative overhead.
• Culture - We value collaboration, openness, a willingness to learn, lead, and a curious nature. Our approach encourages mistakes as long as we are willing to learn from them, fostering a culture where growth comes from understanding and overcoming challenges.
• Autonomy and responsibility – You’ll be trusted to get things done efficiently and effectively.

Hiring Process

1. Application review - We’ll review your experience, background, and overall fit for the role.
2. Video Call with HR- Initial conversation about fit, availability, and expectations
3. Second interview with Leadership- If there is a strong match after the first conversation, we’ll invite you to a second interview with the Leadership team. This discussion will focus primarily on cultural fit, ownership, communication, and the way you approach collaboration and problem‑solving. We may also revisit a few technical topics if anything needs additional clarification.
4. Welcome to Afternow!

Timeline: We’re moving quickly. If you’re the right fit and can start immediately, we can move through this process within 1‑2 weeks.

If you have strong React/Next.js experience, and enjoy building scalable, high‑performance frontend applications, we’d love to hear from you.

Show us your work that demonstrates:

• React, Next.js, TypeScript, and modern frontend tooling
• Complex B2B/B2C products, dashboards, or marketplaces
• Design systems and reusable component architecture
• Performance optimization and responsive UI development
• Fast‑paced environments and practical problem‑solving

Your future starts today. Let’s talk.

Afternow is an equal opportunity employer. We believe diverse teams build better products and create better experiences. We encourage applications from people of all backgrounds, experiences, and perspectives.