Senior Backend Engineer

Madrid, Spain
Full-time
Description
About ThetaRay
ThetaRay is a trailblazer in AI-powered Anti-Money Laundering (AML) solutions, offering cutting-edge technology to fintechs, banks, and regulatory bodies worldwide. Our mission is to enhance trust in financial transactions, ensuring compliant and innovative business growth.
Our technology empowers customers to expand into new markets and introduce groundbreaking products.
ThetaRay is a culture-driven company. Our values are at the heart of our success. By joining us, you'll have the opportunity to embody these values and inspire others through your actions.

Why Join ThetaRay?
At ThetaRay, you'll be part of a dynamic global team committed to redefining the financial services sector through technological innovation. You will contribute to creating safer financial environments and have the opportunity to work with some of the brightest minds in AI, ML, and financial technology. We offer a collaborative, inclusive, and forward-thinking work environment where your ideas and contributions are valued and encouraged.
Join us in our mission to revolutionize the financial world, making it safer and more trustworthy for millions worldwide.

About the Role
We are seeking a Senior Software Engineer to join our global R&D department.
In this role, you will be the senior developer in the team, serving as both a hands-on expert for the most complex developments and the go-to person for any technical question or challenge. You will work closely with the team, acting as a mentor, guiding peers, and setting a high technical bar.
Your focus will be on building and scaling complex systems and Big Data pipelines, solving architectural and performance challenges and driving innovation in our core products.

What You’ll Do
Lead hands-on development of complex features and components in our Big Data pipelines from concept to deployment
Serve as the go-to technical expert and problem solver for the team
Mentor team members, support their growth, and foster knowledge sharing
Investigate and adopt new technologies, driving innovation into the product
Take ownership across the full development lifecycle: from translating product requirements into designs, through coding and testing, to troubleshooting in production
Design for scalability, sustainability, and high performance in production-grade environments
Requirements
At least 5 years of hands-on experience in developing data-oriented highly complex products, using Java/Python/Other OOP languages – Must
Experience in data processing FW such as Spark or Pandas – Must (Experience with Minio / Airflow – an Advantage)
Production level troubleshooting; Experience working with advanced SDLC methodologies – Must
Experience in Distributed Databases (Such as Elasticsearch, Mongo, Redis, etc)
Experience working as a software developer in an Agile environment
A genuine passion for AI and proficiency working with cutting-edge AI development tools and technologies
Familiarity with AI tools to enhance and accelerate development workflows
Experience with developing microservices-based architecture
Experience working in container-based environments using tools such as K8s, Helm
Curiosity, accountability, and strong analytical thinking. Teamwork skills, including close collaboration with cross-functional interfaces such as Product, QA, and DevOps

Nice to have:
Familiarity with machine learning frameworks (e.g., scikit-learn, TensorFlow)
Experience with RedHat OpenShift
Dev Environment knowledge: GIT, Jenkins, Docker
Working with hybrid teams remotely
Strong plus will be a mentoring experience, team guidance, and unofficial leadership responsibilities