Principal Software Engineer - Full Stack

R&D Full-time London, UK

In just a few short years, monday.com has evolved from a fast-growing startup into a publicly traded, multi-product company and one of the world’s fastest-growing SaaS businesses. Our journey is defined by hyper-growth, global expansion, and a relentless focus on impact at scale.

Our product suite can adapt to the needs of diverse industries and use cases within one powerful platform. Our ~245,000 customers are reimagining how work gets done, driving greater efficiency, and scaling like never before.

We're building world-class Engineering teams in London and we’re hiring a Principal Software Engineer to help shape the future of our technology and culture here. This is a rare opportunity to join a high-impact team at a pivotal stage of growth, where your work will directly influence the next chapter of monday.com.

This role will sit within the Enterprise Group, which is driving monday.com's growth into the enterprise space by ensuring our products are fully enterprise-ready, unlocking adoption at a global scale.

Please note this is a hybrid role requiring 3 days per week in our (amazing!!!) London office in Fitzrovia.

In just a few short years, monday.com has evolved from a fast-growing startup into a publicly traded, multi-product company and one of the world’s fastest-growing SaaS businesses. Our journey is defined by hyper-growth, global expansion, and a relentless focus on impact at scale.

Our product suite can adapt to the needs of diverse industries and use cases within one powerful platform. Our ~245,000 customers are reimagining how work gets done, driving greater efficiency, and scaling like never before.

We're building world-class Engineering teams in London and we’re hiring a Principal Software Engineer to help shape the future of our technology and culture here. This is a rare opportunity to join a high-impact team at a pivotal stage of growth, where your work will directly influence the next chapter of monday.com.

This role will sit within the Enterprise Group, which is driving monday.com's growth into the enterprise space by ensuring our products are fully enterprise-ready, unlocking adoption at a global scale.

Please note this is a hybrid role requiring 3 days per week in our (amazing!!!) London office in Fitzrovia.

You’ll be working alongside experienced and passionate engineers who love what they do, using cutting-edge technologies in a data-driven, impact-focused environment. Our culture values transparency, full ownership, collaboration, and a no-ego mindset.

Our engineering organization includes over 300 engineers across multiple groups, each owning a key domain of the monday.com platform. We work in cross-functional teams to define, build, and continuously improve our products together.

What you will do:

• Set engineering vision, technical direction, architectural approach, and execution.
• Provide hands-on technical leadership and mentorship to the engineering teams.
• Collaborate with key stakeholders and partners in multiple areas of the monday organization.
• Contribute to product and project strategy, roadmap definition, and requirements gathering.
• Our Stack - React.JS, Redux, Node.js, Ruby on Rails, AWS, Elastic Search, Redis, MySQL

Note: Prior experience with our tech stack is not required; we welcome people willing to learn.

Your Experience & Skills

• 15-20+ years of experience in software development with a strong track record of designing and delivering complex systems.
• Deep expertise in software design, architecture, and in testing and launching robust products.
• Extensive experience building and scaling large infrastructure, distributed systems, or networks, ideally with hands-on cloud technology knowledge.
• Proven leadership experience driving technical direction and influencing engineering teams.
• Excellent communication skills, able to clearly explain technical concepts to both technical and non-technical audiences.
• A collaborative team player, skilled at working cross-functionally and fostering alignment across stakeholders.
• Experience with enterprise SaaS products is a strong advantage.

What monday.com can offer you:

• The chance to join a well-funded, rapidly growing company with ambitious goals, offering a competitive salary, bonus, and RSUs.
• Private healthcare insurance through Vitality.
• ClassPass membership to support your wellbeing.
• Complimentary breakfast and lunch Monday through Thursday at our office.
• A dedicated learning and development team focused on helping you grow your skills.
• Fun team events, socials, and offsite gatherings.
• An award-winning company culture that values transparency, collaboration, and having fun, recognized as one of the “Best Places to Work ” in the UK.
• A truly global, dynamic environment with passionate colleagues across Tel Aviv, New York, San Francisco, Miami, Chicago, Denver, London, Warsaw, Sydney, São Paulo, and Tokyo.

Apply to this job

We believe in equal opportunity.

monday.com is an equal opportunity employer and bans discrimination and harassment of any kind. monday.com is committed to the standard of equal employment opportunity for all employees and to creating and maintaining a workplace free of discrimination and harassment.

All qualified applicants will be considered for employment regardless of any personal characteristic. We encourage candidates from all backgrounds to apply, regardless of their race, religion, national origin, ethnicity, sexual orientation, gender identity, age, marital status, family or parental status, physical or mental disability or any other status protected by the laws or regulations in the locations where monday.com operates.

monday.com is committed to working with and providing access and reasonable accommodation to applicants with any disabilities. If you think you may require accommodation for any part of the recruitment process, please send a request to accommodations@monday.com.

All requests for accommodation are treated confidentially , as practical and permitted by law.

Meet the R&D team

The R&D Team is passionate about building innovative and lovable products, while tackling complex engineering problems at a great scale. We’re accountable for bringing the company’s vision to life by navigating our progress into flawless execution and encouraging full ownership and independence in all projects.