Senior Fullstack Engineer
JUST
Software Engineering
Paris, France
Posted on Nov 25, 2024
Senior Fullstack Engineer
Location
Paris HQ
Department
Tech & Product
Required Experience
> 8 years
1 more property
Permanent & full time contract
Required experience: +8 years at either start up or tech company
Location: Paris HQ
⚡️ Hey you,
Today, JUST offers a plug-and-play checkout experience that combines a high-performance, fast checkout with marketing triggers, enabling merchants to increase revenues and margins by an average of 10-15%. With over 500 merchants onboarded in France and more than 1 million users, we’re now extending operations to the UK to drive innovation that will impact millions of consumers and brands worldwide. Yes, we’re on a mission to reshape the entire customer journey and make shopping simple, smart, and social.
Our ambition is to serve a new generation of consumers for the next several decades, as PayPal did 30 years ago. But our vision goes beyond checkout: we draw inspiration from social commerce innovations in China. We believe the future of shopping lies in seamless experiences that merge simplicity, personalization, and social interaction. This will empower consumers to make purchases effortlessly, track orders, receive fast refunds, enjoy personalized shopping experiences, and even engage in real-time shopping with friends. "Becoming the new standard of shopping for the next decades" isn’t just a tagline—it’s our commitment to the future.
Join us on our mission to make shopping simple, smart, and social.
Here’s our landing page… take a look : getjust.eu
Can you do it?
As part of our engineering team, your work will directly impact the success and satisfaction of our merchants by developing high-quality, reliable, and innovative solutions. We're not just about building features; we're committed to crafting a platform that merchants and consumers can trust and love. By investing in engineering excellence, we aim to foster long-term growth and create meaningful change in the way people shop online. Join us as a Senior Fullstack engineer and be part of this journey towards changing the way people shop online
What is the focus of the role?
Lead the development of scalable, high-performance web applications for a seamless e-commerce checkout experience.
Work across both frontend and backend, ensuring high-quality code and system reliability.
Collaborate with cross-functional teams to design and implement new features aligned with business goals.
Mentor junior engineers, fostering their growth and improving overall team performance.
Incorporate innovative technologies and best practices to continuously enhance our platform.
How About You and Your Approach to the Role?
You have a Bachelor’s degree in Computer Science, Software Engineering, or a related field (bonus if you have an advanced degree or certifications in full stack development).
You bring 5+ years of experience as a full stack engineer, ideally within e-commerce or fintech environments (e.g., Shopify, Stripe, PayPal).
You possess expert-level knowledge in modern web development, with strong skills in JavaScript/TypeScript, HTML5, CSS3, and browser APIs.
You are highly proficient with modern frameworks like React, Angular, or Vue.js, and back-end frameworks like Express or Django (experience with serverless architecture is a big plus!).
You have a deep understanding of CI/CD processes, version control (e.g., Git), and agile development methodologies.
You enjoy leading cross-functional collaboration, working closely with product, design, and other engineering teams to deliver high-quality solutions.
You're familiar with cloud services like AWS, GCP …, containerization (Docker), and understand microservices architecture.
You’re comfortable mentoring junior engineers and leading initiatives to improve team efficiency and product development processes.
Our Stack
Frontend: React, Next.js, TypeScript
Backend: Node.js, Serverless architecture (AWS Lambda), REST/GraphQL APIs
CI/CD: Github action
Hosting & Monitoring: AWS, Datadog, Sentry
Sounds like you? Then, we should probably chat.
If you're reading through this and recognize where you are now or how you're projecting yourself then we should probably chat.
If you're reading through this and have even the slightest doubt this role might be it for you, then we should probably chat. Don't let us miss out on the opportunity to meet you
If you want to learn more about JUST take a quick look at:
What's next?
What are we looking for?
an overview of your background (either a resume or a Linkedin profile)
a short note to tell us why we're a great fit for each other and how you envision your future @JUST
Don't hesitate to share any questions you may have in mind while sending us your application. If you're wondering about it, we should probably share more info in here.
We'll get back to you within a week. No matter our decision, you will hear from us
What’s the process like:
The Screening Interview: 30-minute video call usually with our Chief of Staff to better understand where you at right now, how you project yourself in the future, and how it all relates to JUST’s path. It's also during this first step that we talk about your salary expectations.
The Who interview: A 45 minutes to 1 hour interview with members of the team related to he job you’d be applying for, to learn more about you as a person, your motivations, and your past experiences. Our goal is to understand who is applying to JUST.
The Focused interview : Our Focused Interview is your chance to showcase how well your skills, experience, and values align with the role. This interview takes a deeper dive into the specific outcomes and competencies we’re looking for, going beyond a traditional job description. You’ll meet with team members who want to understand (i) your technical and (ii) behavioral skills, as well as (iii) how you align with our company culture. It’s designed to ensure that both you and the position are the perfect fit for one another. Think of it as the final step in making sure this opportunity is the right one for you, and a chance to highlight what makes you the best choice.
Founder call: 30-minute discussion with one of JUST's founders around vision, mission, and culture.
Reference calls: Once we reach the founder call, we’ll get back to you asking for a couple of contacts to serve as references for JUST.
We’ll get back to you as quick as we can after each steps. Our process usually last over 2 Weeks.
How long until you get back to me?
Once we receive your application, we’ll review it and get back to you within 5 working days.
After your initial call with our Talent Manager and at each step of the interview process, you’ll receive feedback via email within 1 working days.
If you don’t hear from us in time, feel free to nudge us with an email (we all miss a deadline now and then )!