Job Description

Backend · Node.js · Crypto Infrastructure

🚀  Build real-world crypto payments used at global scale

We’re looking for a backend-focused software engineer with blockchain experience to help build and scale next-generation payments infrastructure. This is a hands-on role for someone who wants to work close to the product, touch real users, and ship systems that operate at serious scale.

Location

• Strong preference for New York City
• Open to remote (US or global) for exceptional candidates with strong experience and solid tenure

What You’ll Be Doing

• Play a key role in shaping the technical and product roadmap
• Build and scale backend services that interact with blockchain infrastructure
• Work directly with smart contracts across multiple chains
• Develop and support new smart contracts and blockchain integrations
• Help scale on-chain infrastructure to millions of users globally
• Ship new features quickly in a fast-moving environment
• Influence architectural decisions in a rapidly evolving product

This role is ideal for someone who enjoys ownership, speed, and solving real problems at the intersection of payments, fintech, and crypto.

Why This Role Is Different

• You’ll be building  real-world crypto infrastructure , not side experiments
• Flat, open culture - engineers influence the roadmap
• High ownership and autonomy
• Backed by top-tier investors in fintech and crypto
• Global impact from day one

Requirements

What We’re Looking For

• 2–10+ years of professional engineering experience
• Strong experience with Node.js and modern backend technologies
• Hands-on experience interacting with blockchains and smart contracts
• A backend engineer with real blockchain exposure (not just interest)
• Crypto-curious at minimum - crypto-native is a plus
• Comfortable working in lean, fast-paced teams

Nice to have (not required):

• Fintech experience (neobanks, card issuing, payments infrastructure)

Benefits

Compensation & Benefits

• Competitive compensation based on experience
• Equity so you share in the upside
• Unlimited PTO (with a minimum 10 days encouraged)
• Flexible work environment (remote or office-friendly)
• Home office setup stipend
• Comprehensive health, dental, and vision (US-based)
• 401(k) with company match
• Health & wellness allowance (gym, classes, recovery, etc.)
• Team offsites and international summits
• Access to internal products for hands-on testing

Interview Process

1. Intro call with Recruiting / HR
2. CTO phone screen (team fit & culture)
3. Technical interview (deep dive into past work & impact)
4. Technical session (2 hours: architecture + programming)
5. Founder / CEO interview
6. Final wrap-up conversation

Due to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates. If you do not hear back from us within 4 weeks of your application, please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search.

Commitment to Equality and Accessibility:

At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city.

MLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd’s Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting legal@mlabs.city.

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