Senior Backend Engineer — Build Scalable FinTech Platforms

Plum; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Stock options

Private health insurance

Plum Premium

Remote-friendly with 2 days in office

Team meals

25 days holiday

Job summary

Plum, the proactive money platform, is looking for a Senior Backend Engineer to join a team building scalable systems that power the product for millions of customers. You'll work with Kotlin with Spring Boot and Python with FastAPI, contribute across the full product lifecycle, and mentor colleagues while solving real-world problems in a hybrid London/Athens/Cyprus setup.

Expect a fast-paced environment with rigorous design reviews, live coding, and a culture that rewards ownership,

Qualifications

• 5+ years of experience as a Software Engineer.
• Strong product understanding and ability to impact all stages of development.
• Experience in cross-functional collaboration.
• Proficient in Kotlin with Spring Boot; Python with FastAPI is a plus.

Responsibilities

• Design modular, scalable, testable systems.
• Identify root causes and implement long-term fixes.
• Ship fast and iterate based on feedback.
• Collaborate across engineering, design and product teams.

Tools

Kotlin

Spring Boot

Python

FastAPI

Job description

Plum, the proactive money platform, is looking for a Senior Backend Engineer to join a team building scalable systems that power the product for millions of customers. You'll work with Kotlin with Spring Boot and Python with FastAPI, contribute across the full product lifecycle, and mentor colleagues while solving real-world problems in a hybrid London/Athens/Cyprus setup.

Expect a fast-paced environment with rigorous design reviews, live coding, and a culture that rewards ownership,