Full Stack Engineer in London

We’re looking for a Mid-Level Software Engineer to join our growing engineering team. You’ll be a productive, reliable, and effective contributor who can confidently take ownership of features, collaborate with your peers, and help us build systems that scale with the growth of our business. You’ll work across our core stack - C#, .NET Core, and Angular - to design, build, and improve features that directly help businesses access finance and serve their customers better. This is a great role for someone to strengthen their skills on the path toward senior engineering responsibilities.

What You’ll Do

• Software Development
  • Design, build, and deliver medium-sized features and projects across our C#, .NET Core, and Angular 18 stack.
  • Write clean, maintainable, and well-tested code in line with YouLend’s engineering principles and coding standards.
  • Take ownership of features or small problem spaces, including breaking down requirements and scoping solutions.
  • Deliver features that directly improve our platform experience for customers and partners.
• Collaboration
  • Work closely with product managers, designers, and engineers to deliver impactful solutions.
  • Provide constructive feedback in code reviews and accept feedback with openness.
  • Document features, proposals, and runbooks to ensure clarity and scalability.
  • Coordinate with platform teams to ensure successful deployments and system reliability.
  • Communicate effectively with team members and seek support from senior engineers when needed.
• Cloud & Infrastructure
  • Deploy and monitor applications in a cloud-native environment (AWS).
  • Contribute to building and improving CI/CD pipelines.
  • Ensure systems are reliable, scalable, and performant in production.
• Quality & Agile Practices
  • Take ownership for the quality and reliability of your work (write unit, integration, and end-to-end tests; validate changes rigorously).
  • Debug and resolve issues in production; respond to incidents and contribute to post-mortems.
  • Use observability, logging, and metrics to monitor application health and take proactive actions.
  • Champion quality from day one: testing, monitoring, and observability are part of how you work, not afterthoughts.
  • Engage in Agile practices (planning, retrospectives, standups) and help the team continuously improve.
  • Contribute to continuous improvement by identifying opportunities to make systems and processes better.

Requirements

What We’re Looking For

• 2–5 years of professional software engineering experience.
• Passion for building scalable, reliable systems and solving complex technical challenges that make a real difference for our customers and partners.
• A collaborative mindset with eagerness to learn and grow.

Essential Skills

• Proficiency in object-oriented programming and system design.
• Proficiency in .NET (C#) and good exposure to Angular.
• Good hands-on experience of software testing concepts.
• Good knowledge of AWS services and microservices principles.
• Familiarity with cloud-native technologies, CI/CD pipelines, and modern devops practices.
• Understanding of non-functional requirements: performance, security, availability, maintainability.
• Experience working with relational or NoSQL databases (e.g. PostgreSQL, SQL Server, MongoDB).

Soft Skills

• A growth mindset — you’re curious, proactive, and eager to learn and improve continuously.
• Strong problem-solving skills, with the ability to design and implement solutions that balance complexity and simplicity.
• Feedback orientated: you give and receive feedback graciously, and use it to improve.
• Ownership & accountability: you deliver on commitments, surface risks, and take responsibility.
• Team player: you help others, learn from others, and contribute to healthy culture.
• Adaptability: you can operate in evolving environments and pivot when priorities change.
• Great communication skills — you’re comfortable explaining your work, collaborating with others, and working across disciplines.

Desirable Skills

• Experience with containerization.
• Experience with messaging/event-driven architectures (Kafka, RabbitMQ, Akka etc.).
• Familiarity with observability tools (Datadog etc).
• Exposure to domain-driven design or complex domain modelling patterns.
• Experience in fintech, payments, or regulated environments.

Benefits

Why join YouLend?

• Award-Winning Workplace: YouLend has been recognised as one of the “Best Places to Work in 2024 and 2025” by the Sunday Times for being a supportive, diverse, and rewarding workplace.
• Award-Winning Fintech: YouLend has been recognised as a “Top 250 Fintech Worldwide” company by CNBC.
• It’s just getting fun: We have developed powerful solutions, won some significant partnerships, and are growing at a rapid pace.
• But the global opportunity is still massive, and YouLend is a raw organisation where we are only just getting started.
• Lots of upsides: High-growth (>100% growth during 2022 and 2023), so clear outlook to compensation (bonus or share option appreciation) and career growth (through growth with business).
• Well-capitalised with supportive private equity backing.
• Part of Banking Circle Group with a fully licensed Luxembourg bank, which can provide a balance sheet and support European expansion in otherwise complex regulated markets.
• Motivating work environment: A high-quality team that pushes each other to succeed through direct feedback and aligned incentives.
• Strong and transparent team culture, we have each other’s backs.
• Independent work environment where results matter.
• Data-driven culture and emphasis on speed (anti-red tape).
• We offer a comprehensive benefits package that includes:

• Stock Options
• Private Medical insurance via Vitality and Dental Insurance with BUPA
• EAP with Health Assured
• Enhanced Maternity and Paternity Leave
• Modern and sophisticated office space in Central London
• Free Gym in office building in Holborn
• Subsidised Lunch via Feedr
• Deliveroo Allowance if working late in office
• Monthly in office Masseuse
• Team and Company Socials
• Football Power League / Paddle and Yoga Club

At YouLend, we champion diversity and embrace equal opportunity employment practices. Our hiring, transfer, and promotion decisions are exclusively based on qualifications, merit, and business requirements, free from any discrimination based on race, gender, age, disability, religion, nationality, or any other protected basis under applicable law.