[Hiring] Systems Engineer @YLD

Role Description

As a Distributed Systems Engineer, you’ll be part of a client team designing and building the core foundations of a highly performant, low-latency system. We’re looking for someone who is curious, deeply technical, and comfortable operating close to the metal.

• Help design and implement core infrastructure components
• Build and optimise binary protocols
• Work on performance-critical parts of the system
• Collaborate closely with the team through context engineering workflows (Claude Code, Codex, Agentic Coding)
• Bring a pragmatic, quality-driven approach to problem-solving
• Be an effective communicator and strong collaborator
• Thrive in fast-moving engineering environments

Qualifications

• Strong experience with low-level languages (C/C++/Rust preferred)
• Experience with low-level OS interfaces (file I/O, synchronisation, memory mapping)
• Ability to reason about memory: stack vs heap, allocation costs, fragmentation, paging behaviour
• Understanding of distributed systems fundamentals (consistency, replication, durability, fault tolerance)
• Experience with binary formats and on-disk data layout
• Strong interest in database internals (storage engines, indexing, logging, MVCC, etc.)
• Comfortable with TDD and high-quality engineering practices
• Experienced with agentic coding and context engineering; treats AI tooling as a professional workflow, not a novelty
• Strong problem-solving ability and deep system-level reasoning

Benefits

The chance to work with a forward-thinking, ethical, and fun group of people and to develop and grow your skills in a fast-moving business.

Company Description

Everything we do is to empower our clients to move forward. Our purpose is to help our clients develop the capabilities they need to outperform their competitors. Our success is a consequence of ensuring our clients are successful. Our company is built on extraordinary people; we aim to attract, inspire, develop and retain them. YLD is a software engineering and design consultancy; we create digital capabilities for our clients that last beyond our engagement. We have offices in London, Lisbon, Porto.