Principal Software Engineer

Description
In just a few short years, 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

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

Check out our Engineering Blog -

Please note this is a hybrid role based in our incredible London office in Fitzrovia, with 3 days per week on-site.
About The Role
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 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, , Ruby on Rails, AWS, Elastic Search, Redis, MySQL

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

Requirements

• 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 Can Offer You

• Join a well-funded, high-growth company.
• Competitive salary, performance bonus, and RSUs.
• Employer pension contribution of 5%, with matching up to 7%.
• Comprehensive private healthcare, critical illness, and life insurance.
• £50/month towards a ClassPass membership to support your wellness.
• Buffet breakfast and lunch at the office (Monday to Thursday).
• Fun team events, socials, and offsites that bring our culture to life.
• Up to two weeks per year to work remotely from anywhere abroad.
• An award-winning company culture – named "Best Place to Work" in the UK
• A dynamic, global environment with passionate teams across Tel Aviv, New York, San Francisco, Miami, Chicago, Denver, London, Warsaw, Sydney, São Paulo, and Tokyo.

Social Description
is looking for a Staff Engineer to join our rapidly growing R&D team. This is an amazing opportunity to join one of Israel's fastest growing companies and make an immediate and real impact on the future of our product.