Software Engineer - KYC & Eligibility Jobs

Blockchain

Location:
France, Paris

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

As a Software Engineer in the KYC & Eligibility team, you will be responsible for building and optimizing the onboarding and identity verification processes at Blockchain.com. Your work will ensure that customers can seamlessly and securely access our platform while meeting regulatory and compliance requirements. You will collaborate with engineering, compliance, and product teams, integrating third-party identity verification providers such as Sumsub, Veriff, and DXC, to create a scalable, reliable, and efficient onboarding experience. This role requires strong technical expertise, a problem-solving mindset, and the ability to build systems that are both secure and user-friendly. You will take the lead to design, develop and maintain our onboarding flows, ensuring high availability, low latency, and optimal user experience.

Job Responsibility:

Design, develop, and maintain the KYC & Eligibility platform, ensuring scalability, security, and reliability
Integrate with third-party identity verification providers (Sumsub, Veriff, DXC) and optimize interactions to reduce verification failures and improve user conversion rates
Write high-quality, maintainable, and efficient code while upholding best practices in software development
Set guidelines for observability and the monitoring of KYC services, leveraging tools to improve system performance and debugging capabilities
Work closely with compliance and risk teams to ensure regulatory requirements are met while maintaining a seamless user experience
Improve fraud detection and prevention mechanisms, ensuring that our onboarding flow remains secure and efficient
Collaborate with backend and frontend engineers to enhance the end-to-end onboarding experience
Contribute to technical architecture discussions, ensuring that design choices align with both business goals and system performance
Work closely with engineering, product, and compliance teams to enhance the eligibility and onboarding experience
Participate in code reviews, offering constructive feedback to maintain code quality and consistency
Partner with infrastructure teams to improve deployment processes, ensuring high availability and resilience
Provide technical guidance to junior engineers and collaborate with other teams on shared initiatives
Optimize KYC workflows to balance security, compliance, and user experience
Identify and resolve performance bottlenecks, ensuring smooth onboarding and verification processes
Continuously evaluate and improve eligibility-related automation, reducing manual review overhead and enhancing efficiency
Stay up-to-date with emerging technologies and contribute to process improvements that enhance engineering effectiveness

Requirements:

Proficiency in JVM languages (Kotlin, Java), Kafka and PostgresSQL
Experience working with identity verification providers such as Sumsub, Veriff, and DXC
Strong understanding of event driven distributed systems, APIs, and microservices architectures
Knowledge of observability and monitoring tools to maintain system reliability and performance
Familiarity with security best practices, particularly in KYC, fraud detection, and compliance systems
Experience working in high-throughput, low-latency environments where scalability and efficiency are key
Experience with SQL (Postgres) and NoSQL databases (Redis), ensuring optimal data storage and retrieval for KYC processes
Ability to work cross-functionally with Compliance, Risk, Product, and Engineering teams to enhance onboarding flows
Strong problem-solving and debugging skills, ensuring quick incident resolution and system improvements
Excellent written and verbal communication skills, ensuring technical discussions are clear and productive

Nice to have:

Experience working in fintech, crypto, or other highly regulated industries
Prior work on fraud detection, eligibility, or transaction risk systems
Exposure to machine learning models or automation techniques for KYC optimization

What we offer:

Competitive full-time salary based on experience and meaningful equity in an industry-leading company
Awesome office location in the heart of Paris
Work from Anywhere Policy: You can work remotely from anywhere in the world for up to 20 days per year
The opportunity to be a key player and build your career at a rapidly expanding, global technology company in an exciting, emerging industry
Unlimited vacation policy
work hard and take time when you need it
Performance-based bonuses paid in cash
Apple equipment provided by the company

Additional Information:

Job Posted:
December 06, 2025

Employment Type:

Fulltime

Work Type:

Hybrid work

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Software Engineer - KYC & Eligibility