Bitrefill is the leading crypto e-commerce site worldwide, fostering a circular economy that allows people to opt out from the traditional banking systems and embrace freedom. We make it easy for people to live on crypto around the world by purchasing gift cards and mobile refills with Bitcoin and other cryptocurrencies. We believe in the power of crypto to empower individuals globally.

Your Mission:

We are looking for a Senior Frontend Developer that will work with their team to improve and maintain our React application. With users in 180 countries & some of those being on low-end devices we need someone with a strong focus on optimization and performance to support our diverse user base across the world. You will be involved in developing new features with the rest of the team, as well as working closely with a dynamic team of Backend/Frontend Developers, and creative designers, ensuring everything we build is fast, reliable, and scales effortlessly.

We want someone who takes pride in their work and gets s*** done. If you’re the kind of person who’s obsessed with learning, loves solving complex challenges, and thrives in a fast-paced, innovative environment—this is the place for you!

Your Responsibilities:

• Responsible for the performance, optimization, functionality and architecture of our web app and commercial platform

• Build and deploy new code, features and products, as well as maintaining and improving old code

• Working closely with the rest of the technical team to ensure performance of our frontend but also maintainability of our code base.

• Monitor and react accordingly to the website performances, keeping up with our features and user needs.

• Be hungry to learn, fast to execute, do a lot with little, and care strongly about your product and users

• Be a team player and a good friend who will contribute to our unpretentious culture

You bring with you:

• You reside in Europe or LATAM

• Excellent communication and interpersonal skills with fluency in written and spoken English

• 6+ years of programming experience, 5+ years React experience with a focus on performance & optimization

• Experienced in optimizing large scale web applications (100k+ monthly users) & a proven track record of running large scale websites

• Deep knowledge of the inner workings of React

• Experienced in maintaining frontend repositories and frontend developer tools

• Experienced in working with HTTP protocol (especially HTTP/2) and CDN:s

• Good understanding of modern CSS

Our Tech Stack:

• TypeScript

• React/Redux

• Express.js

• Node.js

• MongoDB, MySQL

• Amazon AWS, Kubernetes

We Offer:

Bitrefill believes in the freedom to work remotely and offering our team members flexibility. We’ve built our entire business around this. Have no fear; you will never feel lonely, and you'll have the chance to meet your coworkers in person at our annual team retreats. Here are some reasons people choose us:

- To become part of a talented team with high ambitions for a world where crypto is money for everyday use

- A challenging workplace and a great education when it comes to everything involving cryptocurrency

- Besides a competitive salary, we offer outstanding perks and benefits to make your experience at Bitrefill the best:

• Option to get paid in crypto - at Bitrefill we walk the walk!

• Freedom to work from anywhere (with a reliable and strong internet connection)!

• Computer with necessary accessories

• Remote Workspace Allowance - Ergonomic chairs and desks are an important part of a good home office

• Educational Allowance - 300€/$ per year + subscriptions on the most enrichment learning platforms in the market!

• Biannual team retreats consist of two get-togethers every year (which means, get your passport ready!)

• 25 paid vacation days + a number of days to spend on your own country's national holidays!

• Paid parental leave - here, your work adapts to your personal life, not the other way around!

• Wellness Allowance - 600 €/$ per year - important to get you moving when you sit all day in front of a computer!

• Global Health Insurance - We want to give you wings so you can fly high but you have to be safe after all!

Salary and compensation

Benefits

🌎 Distributed team

🤓 Vision insurance

🦷 Dental insurance

🚑 Medical insurance

🏖 Paid time off

🏔 Company retreats

📚 Learning budget

🖥 Home office budget

🥧 Pay in crypto

Position: Senior Back End Wizard ✨
Company: joi.studio
Location: Remote (Sydney EST and LA time) 🌍
Working Hours: Flexible, with a preference for working between 1pm and 12am Sydney EST (8pm to 7am LA time) ⏰
Role Type: Contractor, working ideally 40 hours per week

About Us: Hey there! 🌟 We're a passionate team on a mission to revolutionize mental health and personal growth. Our platform blends the best features of Netflix and Udemy, providing a unique and joyful experience to over 350,000 students across five countries. We reached product market fit over three years ago without needing external capital and continue to scale and innovate every day. 🚀

Role Overview: Are you a back-end wizard who loves autonomy and taking charge? 🧙‍♀️ We're on the lookout for an assertive Senior Back End Wizard who can set their own working hours while aligning with our fun and dynamic team. Your skills and opinions will be highly valued, and you'll play a crucial role in our development process. You'll be responsible for delivering stellar code and conducting your own QA to western standards. 🌟

Key Responsibilities:

• Autonomous Work: Set your own hours while aligning with team working hours (1pm - 12am Sydney EST / 8pm - 7am LA time). Expected that there would be at least 3 hours overlap each day with other team members. 🕒
• Backend Development: Design, develop, and maintain robust back-end systems using our awesome tech stack. 🖥️
• Assertive Leadership: Be bold and confident in team discussions and decision-making processes. 💪
• Ownership and Reliability: Take 100% ownership of your work, including any mistakes, and be expected to own them. Be reliable and ensure you do what you say when you say it. 👍
• Quality Assurance: Deliver top-notch code and perform thorough QA to meet western standards. ✔️
• Efficient DB Queries: Create lightning-fast database queries to ensure performance and scalability. ⚡
• Re-Architecting Systems: Reimagine and re-architect back-end systems to adapt to new and growing application needs. 🔄
• Front End Understanding: Have a good grasp and some experience with front-end technologies. 🌐
• Stake Holder Management: Effectively communicate with key stakeholders, ensuring their needs and expectations are met and aligned with project goals. 😊
  

Tech Stack:

• Node.js
• React.js
• Apollo
• GraphQL
• TypeScript
• JavaScript
• Python
• MySQL (AWS RDS)
• MongoDB
• AWS Web Services (Route 53, CloudWatch, Terraform, S3, RDS, ECS, Lambda, API Gateway)
• Cloudflare
• Terraform
• DataDog (or other similar logging platforms)
• LangChain

Qualifications:

• Proven experience as a Senior Back End Engineer. 🏆
• Strong proficiency in our tech stack. 🛠️
• Demonstrated ability to work autonomously and assertively. 🚀
• Experience in re-architecting back ends for scalability and performance. 📈
• Strong QA skills with an eye for detail. 👀
• Strong experience in MySQL and MongoDB. 💾
• Passion for working with mental health and helping others. ❤️
• Excellent communication and collaboration skills. 🤝
• Reliable and trustworthy, with a commitment to owning your work. ✅
• Ideal candidate will have had 10 years of development experience. 🌟
• Beneficial, though not critical, to have a passion for AI, Python, and LangChain. 🤖

Why Join Us:

• Work on a unique and impactful platform that combines the best of Netflix and Udemy. 📺📚

• Be part of a team that values your skills and listens to your opinions. 🗣️

• Contribute to a product that has achieved product market fit and continues to scale successfully. 🌍

• Make a difference in the mental health space, helping over 350,000 students improve their lives across five countries. 🌟

• Most of our team members stay with us for over 2.5 years. In fact, here's a heartfelt message from one of our wonderful team members about our leader (Robert) of the joi.studio on his birthday:

  "Hi Robert, On this special day, I want to take a moment to wish you a very happy birthday! Your leadership, vision, and unwavering dedication have been a constant source of inspiration for all of us. Your ability to guide us through challenges with grace and wisdom is truly remarkable, and we are fortunate to have you as our leader. Beyond your professional excellence, your kindness, understanding, and genuine care for each team member make you an extraordinary person. You create an environment where we feel valued and motivated to give our best, and for that, we are deeply grateful. May this year bring you abundant joy, good health, and countless moments of happiness. Here's to celebrating you today and always. Happy birthday!"

If you are a highly skilled, autonomous, and assertive Senior Back End Wizard with a passion for mental health, giving back to those in need, and making the world a better place, we would love to hear from you. Join us in making a meaningful impact through innovative technology. ✨

Salary and compensation

Benefits

🏖 Unlimited vacation

⬜️ No whiteboard interview

👀 No monitoring system

🚫 No politics at work

🎅 We hire old (and young)