Senior Rust Software Engineer

Moody's Investors Service; City Of London; On-site; GBP 50,000 - 70,000; Full time

Job summary

A global leader in financial services is seeking a Software Engineer to design and maintain high-performance applications using Rust. This role involves leading technical design discussions, collaborating with cross-functional teams, and mentoring junior engineers. The ideal candidate has a Bachelor's degree in Computer Science and strong experience in modern software engineering practices. This position offers opportunities in regulatory technology and enterprise-grade software development.

Responsibilities

• Design, build, and maintain scalable software solutions for Moody’s Corp & Gov platforms.
• Develop high-performance applications using Rust.
• Lead technical design discussions.
• Build and maintain APIs and backend services.
• Collaborate with cross-functional teams.
• Mentor junior engineers.
• Ensure code quality and performance.
• Champion observability practices.

Skills

Proficiency in Rust for systems-level programming

Experience with microservices

Hands-on experience with AWS/Azure/GCP

Familiarity with CI/CD and Docker/Kubernetes

Experience designing relational databases

Excellent problem-solving skills

Proficient in agile software delivery

Experience with software observability

Basic understanding of AI concepts

Education

Bachelor’s degree in Computer Science or related field

Job description

At Moody's, we unite the brightest minds to turn today’s risks into tomorrow’s opportunities. We do this by striving to create an inclusive environment where everyone feels welcome to be who they are—with the freedom to exchange ideas, think innovatively, and listen to each other and customers in meaningful ways. Moody’s is transforming how the world sees risk. As a global leader in ratings and integrated risk assessment, we’re advancing AI to move from insight to action—enabling intelligence that not only understands complexity but responds to it. We decode risk to unlock opportunity, helping our clients navigate uncertainty with clarity, speed, and confidence.

If you are excited about this opportunity but do not meet every single requirement, please apply! You still may be a great fit for this role or other open roles. We are seeking candidates who model our values: invest in every relationship, lead with curiosity, champion diverse perspectives, turn inputs into actions, and uphold trust through integrity.

Skills and Competencies

• Proficiency in Rust for systems-level programming and performance-critical applications
• Strong experience with microservices and modern software engineering practices
• Hands‑on experience with cloud platforms (AWS, Azure, or GCP)
• Familiarity with CI/CD pipelines, containerisation (Docker, Kubernetes), and a continuous deployment mindset
• Strong experience designing and working with relational database schemas
• Excellent problem‑solving and communication skills, with a collaborative mindset
• Proficient in incremental software delivery leveraging agile processes
• Experience with software observability practices (distributed tracing, OpenTelemetry, etc.)
• Basic understanding of artificial intelligence concepts, with curiosity and enthusiasm for learning how AI tools can be used to improve processes and drive efficiency. Interest in exploring AI systems and a willingness to develop awareness of responsible AI practices, including risk management and ethical use

Education

• Bachelor’s degree in Computer Science, Software Engineering, or a related technical field

Responsibilities

Design, build, and maintain scalable software solutions for Moody’s Corp & Gov platforms

• Develop high‑performance applications using Rust and other modern technologies
• Lead technical design discussions and contribute to architectural decisions
• Build and maintain APIs and backend services that support mission‑critical systems
• Collaborate with cross‑functional teams including Product, QA, and DevOps
• Mentor junior engineers and promote engineering best practices
• Ensure code quality, security, and performance across all deliverables
• Champion observability and ensure software is observable, maintainable and resilient

About the team

Our Corp & Gov Technology team is responsible for delivering innovative software solutions that support Moody’s public and private sector clients

• We enable data‑driven decision‑making through secure, scalable platforms
• We drive operational efficiency and risk transparency across government and corporate domains
• We foster a culture of technical excellence, inclusion, and continuous learning

By joining our team, you’ll be part of exciting work inregulatory technology, public sector analytics, and enterprise‑grade software development.

Moody’s is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected veteran status, sexual orientation, gender expression, gender identity or any other characteristic protected by law.
Candidates for Moody's Corporation may be asked to disclose securities holdings pursuant to Moody’s Policy for Securities Trading and the requirements of the position. Employment is contingent upon compliance with the Policy, including remediation of positions in those holdings as necessary.