Senior Backend Engineer (Kotlin - Crypto)

MLabs; A distancia; EUR 102.000 - 120.000; Jornada completa

Descripción de la vacante

A leading FinTech innovator seeks a Senior / Lead Backend Engineer to design and develop scalable backend systems in a fully remote role. You'll work with cutting-edge technology, enhancing banking functions and blockchain integrations. The ideal candidate has a strong background in Kotlin, microservices, and API development with a focus on FinTech or crypto. Benefits include competitive salary, health coverage, and flexible working arrangements.

Servicios

Competitive salary ($120K - $140K) with stock options

Private dental and health insurance

30 days of paid holidays

Option to work 100% remotely

Ability to work abroad for 4 months a year

Provision of best tech equipment

Formación

• Experience in FinTech and/or crypto is required.
• Strong experience with Kotlin.
• Enjoy working with a modern backend stack including Kafka, PostgreSQL, Redis, and GCP.
• Proven ability to develop, test, and deploy microservices.
• Ability to develop robust APIs.

Responsabilidades

• Develop core banking and blockchain services.
• Develop and deploy highly performant APIs.
• Lead technical integration with external partners.
• Develop and deploy microservices using modern stack.

Conocimientos

Experience in FinTech

Experience with Kotlin

Working with Kafka

Experience with PostgreSQL

Microservices development

API development

Team player mentality

Herramientas

Kafka

PostgreSQL

Redis

GCP

Descripción del empleo

Senior / Lead Backend Engineer - FinTech & 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 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: Experience in FinTech and / or crypto is required.
• Core Technology: Strong experience with Kotlin.
• Modern Stack: Enjoy working with a modern backend stack, including Kafka, PostgreSQL, 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.

Preferred Experience (What Will Make You Stand Out)

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

Benefits

• 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.

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‑[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].