Senior Backend Engineer (C#)

Our goal is to help our clients keep moving forward. We work with them to build the skills and capabilities they need to stay ahead of the competition, and we know our success only happens when they succeed. We’re a team of curious, talented people, and we’re committed to making YLD a place where great people want to work, grow, and stay.

We’re a remote-first consultancy specialising in software engineering, product design, and data. Our teams are based across London, Lisbon, and Porto, and we create digital solutions that continue to deliver value long after our work is done.

As a Senior Software Engineer at YLD, you’ll be part of a client team building innovative products. We’re looking for someone curious, passionate, driven, and enthusiastic. You should be skilled in problem-solving and experienced in designing scalable, resilient, and fault-tolerant architectures. You’re also an effective communicator and a strong team player. Together with your team, you’ll thrive in a fast-paced engineering environment, delivering outstanding results and exciting projects.

• Architecting, designing, building, and delivering highly available, always-on, zero downtime API products and solutions;
• Collaborating with engineers, product owners, and other colleagues to seek exciting and results-oriented problems for delivering value;
• Writing clear, maintainable code that will scale;
• Contributing to production operation and monitoring of systems, and aware of SLAs;
• Learning, growing, and mentoring other engineers through code reviews and pair programming to accelerate their technical mastery;
• Proactively looking for ways to improve team processes;
• Driving good practices within your team and making an impact on the whole department.

Preferred qualifications:

• Senior-level experience in modern .NET applications written in C# 7+, .NET Core 5+, NuGet
• Experience designing HTTP APIs using technologies such as ASP.NET MVC, WebAPI.
• Experience in delivering comprehensive test strategies that cover all aspects of the system, such as test-driven development (TDD)
• An understanding of systems design, such as the strengths and weaknesses of distributed systems, cloud technologies, and event sourcing.
• Experience in using Platform-as-a-Service clouds, ideally in Azure
• Experience with modern working practices such as CI/CD, pairing, and iterative delivery
• Experience working in autonomous agile environments;
• Availability to work a flexible on-call rota, responding to and resolving critical incidents.

Nice to have:

• Experience in building high-performance API products;
• Experience launching APIs to both internal and external consumers;
• Experience building cloud systems (especially Azure).
• Experience using hosted document databases such as MongoDB and Cosmos BD
• Experience using Event Driven architectures and messaging

You should apply if you are:

• A T-shaped engineer, but will major in C#;
• Product-oriented;
• Focused on quality and will know what it means to ship high-quality code;
• Self-motivated, proactive, and always looking for ways to improve yourself, the team, and the product;
• Diplomatic and emotionally intelligent, you’ll have the ability to listen and be open to others’ points of view;
• A good communicator, both in writing and verbally. You’ll be able to explain technical ideas and concepts in business-friendly language;
• A genuine believer in diversity, fairness, and including everyone;
• Legally able to live and work in Portugal.

As well as the chance to work with a forward-thinking, ethical, and fun group of people, you’ll also get:

• Company Private Health Care
• Enhanced fully paid maternity and paternity leave for up to 6 months
• 25 days annual holiday (excluding Public Holidays)
• €2000 annual allowance for Training/Conferences
• €300 annual allowance for additional hardware
• Mental Health support: access to Spill app
• Meditation/Sleep support: Headspace or Calm app subscription
• Bonus (depending on Company's performance and results)
• Company laptop
• Generous referral schemes

Our typical Recruitment Process looks like this:

• 1st Interview with someone from the Talent team (30/45 mins)
• Take-Home Challenge (~1h)
• Technical Interview with our Developers (1h30)

Get a glimpse of what it's like working at YLD! 🤳

Check out our LinkedIn page

We live and breathe our values, and know you will too:

• Growing every day
• Including everyone
• Relationships built on honesty and ethics
• Inspiring solutions
• Winning together

We’re an equal-opportunity employer and value diversity in all its forms. We do not discriminate based on race, religion, colour, national origin, gender, sexual orientation, pregnancy or maternity, age, marital status, or disability. We also offer a remote-first working environment, with flexible working and work–life balance as standard for all employees.