Senior Backend Engineer for a leading Series B Fintech

Our client is the fastest-growing earned wage access (EWA) fintech in the U.S., serving 3.5 million employees and backed by top investors like QED and Prosus. They’ve raised nearly $400M in funding—including the largest Series A in fintech history—and just closed a successful Series B to fuel their next stage of hypergrowth.

We are looking for a Senior Software Engineer for the EMEA team. This position is fully remote within Europe. The Backend Software Engineer will be responsible for managing various areas of a world-class backend platform, including API integrations with 3rd-party vendors and partners. The ideal candidate is excited to tackle tough technical challenges and looking for opportunities to contribute to their strategic thinking.

Key Responsibilities:

• Translate product requirements into robust technical solutions, recommend alternative approaches and lead engineering efforts to meet ambitious targets
• Design and implement reliable systems and applications in the context of a fully distributed micro-services architecture
• Build and maintain integrations with 3rd-party vendors and partners
• Design and implement highly available RESTful APIs supporting user-facing web and mobile applications
• Focus on creating reusable code and libraries that can be shared across teams, fostering collaboration and ensuring scalability for future projects.
• Enforce observability best practices, leveraging tools like logging, metrics and alerting systems
• Create and maintain detailed technical documentation for all solutions, including architecture designs, APIs, workflows, and system configurations.
• Continuously monitor systems and applications for opportunities to maximize performance and scalability
• Effective cross-team communication and collaboration to align priorities, clarify requirements, identify dependencies, and ensure seamless coordination throughout the software development lifecycle.

Required Qualifications:

• Fluent English, including strong verbal and written skills.
• 5+ years of Software Development experience
• A Bachelor’s degree in Computer Science or equivalent combination of technical education and work experience.
• Proficient knowledge of back-end programming languages such as Go / Golang, Java, Python and C++
• Strong expertise in designing and developing RESTful APIs
• Experience with both SQL and NoSQL database technologies and strong understanding of database concepts and internals, including data model design and optimization principles
• Experience at building reliable and scalable user-facing applications
• Proficiency in designing and implementing scalable distributed systems and microservices architectures, with a strong ability to meet performance and scalability requirements
• Excellent collaboration skills, with the capacity to work effectively with cross-functional teams, present ideas, and communicate technical concepts clearly
• Keep up to date with technologies - AWS/Azure/GCP, serverless, Docker, Kubernetes, ECS among others
• Strong ability to take ownership of projects, driving initiatives from concept to completion with minimal supervision, while proactively identifying challenges and solutions.
• Experience working with agile methodologies, including Scrum and Kanban, to deliver high-quality results in iterative cycles
• Proficiency in message queuing systems such as Kafka(preferred)/RabbitMQ/Flink.
• Effective release management experience for ensuring zero downtime and experience with CI/CD frameworks such as Gitlab CI and Github actions.