Software Engineer

Levl; Greater London; Hybrid; GBP 80,000 - 120,000; Full time

Job summary

Levl, a fast-growing fintech, is hiring a full-time UK-based Full Stack Software Engineer to design, build, and maintain backend services and frontend applications powering its cross-border payments platform. The role emphasizes reliability, scalability, and security in a hybrid work environment near London.

Requirements include a strong CS foundation, Java and microservices experience, fintech or payments background, and proficiency with REST APIs, SQL, messaging, and cloud/CI/CD tools.

Qualifications

• Strong CS foundations in data structures and algorithms.
• Proficiency in Java and microservices.
• Experience in fintech, payments or trading backend development.
• Strong OOP and design patterns knowledge.
• Experience with REST APIs, SQL, messaging systems, and event-driven architectures.
• Familiarity with cloud platforms (AWS/GCP/Azure) and CI/CD pipelines.
• Knowledge of payments, crypto, or FX trading is a plus.
• Experience in a fast-paced startup environment is a plus.
• Ability to collaborate in a hybrid environment and take ownership of technical solutions.

Responsibilities

• Design, build, and maintain backend services and frontend web applications powering Levl’s global payment infrastructure.
• Focus on reliability, scalability, and security in all solutions.
• Implement new features and optimize APIs and data flows daily.
• Integrate with internal and external payment systems; collaborate with product and operations teams.
• Write clean, testable code; participate in code reviews; improve system performance.
• Contribute to architectural decisions and technical documentation.

Skills

Java

Microservices

Backend development

OOP & design patterns

REST APIs

SQL databases

Message buses / event-driven

Cloud platforms

CI/CD

Payments/crypto/FX trading knowledge

Startup / fast-paced environment

Hybrid collaboration & ownership

Education

Bachelor’s degree in CS/Engineering or equivalent

Job description

Levl is a fast-growing fintech building a unified platform for secure, low-cost cross-border payments in both fiat currencies and stablecoins.

We closed a $7 million seed funding round, led by Galaxy Ventures and backed by top investors including Protagonist, Deus X, Blockchain Builders Fund, OpenFX, FalconX, CMCC, Variant Fund, and a strategic angel network featuring leaders from Revolut, Brex, and Comun.

Levl is incubated and funded by Galaxy Digital (NASDAQ: GLXY), a major public financial services firm. Our team brings experience from leading organisations like PayPal, Deutsche Bank, London Stock Exchange Group, RBC, BlackRock, AQR, Brevan Howard, and Galaxy Digital, offering deep expertise across traditional finance and digital assets.

About the Role

This is a full-time UK-based (must be within ~2 hours of London for regular office days) Full Stack Software Engineer role. The Software Engineer will design, build, and maintain backend services and frontend web applications that power Levl’s global payment infrastructure, focusing on reliability, scalability, and security. Daily work includes implementing new features, optimizing APIs and data flows, integrating with internal and external payment systems, and collaborating with product and operations teams to solve complex payment and infrastructure challenges. The role also involves writing clean, testable code, participating in code reviews, improving system performance, and contributing to architectural decisions and documentation.

Qualifications

• Strong foundation in Computer Science concepts, including data structures, algorithms, and distributed systems.
• Proficiency in Programming using Java and familiarity with microservices architectures.
• Experience in Backend Software Development, ideally in a fintech, payments, or trading environment.
• Solid understanding of Object-Oriented Programming (OOP) principles and design patterns.
• Experience working with REST APIs, databases (SQL), message buses, and event-driven architectures.
• Comfortable with cloud platforms (e.g., AWS, GCP, or Azure) and CI/CD pipelines.
• Knowledge of payments, crypto, or FX trading is a strong plus.
• Evidence of having worked successfully in a fast-paced working environment (such as fast-growing startup) is a strong plus
• Ability to collaborate in a hybrid environment, communicate clearly, and take ownership of technical solutions.
• Bachelor’s degree in Computer Science, Engineering, or related field, or equivalent practical experience.