Senior Backend Engineer; Kotlin - Crypto

Senior/Lead Backend Engineer - Fin Tech & Crypto Innovation

Location: Remote - Fully remote across Europe - they can do B2B or hire through EoR.

Compensation: $120K - $140K

We are looking for a Senior/Lead Backend Engineer obsessed with good architecture, efficiency, and resilience to help us revolutionize the Fin Tech and crypto industry. This role is for a pillar of our engineering team who thrives in a fast‑paced environment, solving complex banking and crypto problems with speed and elegant, resilient solutions.

You will work directly with the product team, owning the design, development, and deployment of mission‑critical services that power our next‑generation financial platform. Your focus will be on building scalable, robust backend systems that handle core banking functions, blockchain integrations, and serve data to our mobile and web applications.

• Core Services Development:
  Develop the core banking and blockchain services that form the foundation of our platform
• API Development:
  Develop, debug, test, and deploy highly performant APIs, including the mobile API that feeds our mobile apps and web
• Integration:
  Lead the technical integration with various external partners and financial services
• Microservices:
  Develop, test, and deploy microservices to support our core business using a modern stack (Kafka, Postgre
  
  SQL, Redis, GCP)

• Experience:
  
  Experience in Fin Tech and/or crypto is required
• Core Technology:
  Strong experience with Kotlin
• Modern Stack:
  Enjoy working with a modern backend stack, including Kafka, Postgre
  
  SQL, Redis, and GCP
• Microservices:
  Proven ability to develop, test, and deploy microservices
• APIs:
  Ability to develop, debug, test, and deploy robust APIs
• Teamwork:
  Strong team player mentality:
  Credit the team & Blame no one

• Experience Level: 4+ years of experience as a Backend Engineer
• Crypto Depth:
  Direct experience with crypto/Web3, particularly working with Ramps and Exchanges

• Compensation:
  Competitive salary ($120K - $140K) plus stock options (equity)
• Health Coverage:
  Private dental and health insurance
• Time Off: 30 days of paid holidays (excluding bank holidays)
• Work Flexibility:
  Option to work 100% remotely or come to the office—your choice!
• Remote Work Abroad:
  Ability to work abroad for 4 months a year
• Equipment:
  Provided with the best tech for your job

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.

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-resourcesy.

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