Senior Backend Engineer (Kotlin - Crypto)

MLabs; France; À distance; EUR 102 276 - 119 322; Plein temps

Avantages offerts par ce poste

Competitive salary plus stock options

Health coverage: private dental and health insurance

30 days of paid holidays

Flexibility to work 100% remotely

Ability to work abroad for 4 months a year

Best tech equipment provided

Résumé du poste

A leading FinTech firm is looking for a Senior/Lead Backend Engineer to revolutionize the industry. You will develop core banking and blockchain services, lead service integration, and build microservices with a modern stack. Candidates must have strong Kotlin skills, FinTech or crypto experience, and a team-oriented attitude. This role offers a competitive salary of $120K to $140K along with stock options, health benefits, and 30 days of paid holidays, alongside the flexibility to work fully remotely.

Qualifications

• 4+ years of experience as a Backend Engineer preferred.
• Direct experience with crypto/Web3, particularly with ramps and exchanges is a plus.

Responsabilités

• Develop core banking and blockchain services.
• Develop, debug, test, and deploy highly performant APIs.
• Lead technical integration with partners and financial services.
• Develop and deploy microservices to support core business.

Connaissances

Experience in FinTech and/or crypto

Strong experience with Kotlin

Ability to develop, debug, test, and deploy robust APIs

Proven ability to develop, test, and deploy microservices

Strong team player mentality

Outils

Kafka

PostgreSQL

Redis

GCP

Description du poste

Senior/Lead Backend Engineer – FinTech & Crypto Innovation

Location: Remote – Fully remote across Europe (B2B or hire through EoR).

Compensation: $120K – $140K plus stock options.

We are looking for a Senior/Lead Backend Engineer obsessed with good architecture, efficiency, and resilience to help us revolutionize the FinTech 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.

What You’ll Be Working On

• 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, PostgreSQL, Redis, GCP).

Requirements

• Experience in FinTech and/or crypto (required).
• Strong experience with Kotlin.
• Proven ability to develop, test, and deploy microservices.
• Ability to develop, debug, test, and deploy robust APIs.
• Strong team player mentality: credit the team, blame no one.

Preferred Experience (What Will Make You Stand Out)

• 4+ years of experience as a Backend Engineer.
• Direct experience with crypto/Web3, particularly working with ramps and exchanges.

Benefits

• 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.

Commitment to Equality and Accessibility

At MLabs, we are committed to offering equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and provide 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 would like to see the job‑advert in an accessible format, please let us know at the earliest opportunity by emailing human‑[e-mail]. 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 [e-mail].