Staff software engineer, enterprise admin (UK)

About WRITER

WRITER is where the worlds leading enterprises orchestrate AI-powered work. Our vision is to expand human capacity through superintelligence. And were proving its possible through powerful trustworthy AI that unites IT and business teams together to unlock enterprise-wide transformation. With WRITERs end-to-end platform hundreds of companies like Mars Marriott Uber and Vanguard are building and deploying AI agents that are grounded in their companys data and fueled by WRITERs enterprise-grade LLMs. Valued at $1.9B and backed by industry-leading investors including Premji Invest Radical Ventures and ICONIQ Growth WRITER is rapidly cementing its position as the leader in enterprise generative AI.

Founded in 2020 with office hubs in San Francisco New York City Austin Chicago and London our team thinks big and moves fast and were looking for smart hardworking builders and scalers to join us on our journey to create a better future of work with AI.

About the role

Were looking for a staff software engineer to join our enterprise admin team. This team owns the foundational systems that enable large organisations to securely adopt and operate Writer at scale including identity authentication authorization administration and billing foundations.

Youll design and build the foundational platform services that our largest customers depend on for secure reliable access to Writer across their organisations. These systems power enterprise-grade access control permissions seat management usage governance and subscription infrastructure. The problems are non-trivial: multi-tenancy distributed systems compliance constraints scalability and long-term architectural maintainability.

This is a hands-on engineering role for someone who enjoys owning systems end-to-end from architecture and design through production reliability and iteration.

This role is hybrid based out of our London hub. Youll report to an engineering director.

What youll do

• Design and build robust scalable services for enterprise administration billing identity management authentication and authorization

• Make meaningful system design decisions own the architecture of core platform components from initial design through production

• Build and optimise high-performance APIs and distributed services that operate reliably at enterprise scale

• Collaborate with product managers and cross-functional engineering teams to translate complex business and compliance requirements into well-designed technical solutions

• Partner with DevOps teams on continuous deployment logging and monitoring; ensuring top-tier performance and reliability

• Drive improvements in observability reliability deployment workflows and operational excellence

• Navigate ambiguity take loosely defined problem spaces and turn them into well-structured maintainable implementations

• Raise the bar on code quality testing documentation and long-term maintainability

What you need

• 7 years of hands-on software engineering experience building production systems end-to-end with extremely strong proficiency with Python and functional programming

• Strong system design skills you can whiteboard a distributed architecture reason about trade-offs and make pragmatic decisions under uncertainty

• Experience building microservices and RESTful APIs in cloud environments (AWS GCP or Azure) including containerization with Docker and Kubernetes

• Solid grasp of database systems (e.g. PostgreSQL) event-driven architectures and distributed systems fundamentals (availability fault tolerance operational safety)

• Comfort operating in ambiguity you drive clarity rather than waiting for complete specifications and you drive clarity for yourself and the team

• Experience coding with AI tools to move faster while maintaining high standards for correctness security and maintainability

• A Connect mindset thriving in collaborative settings where you actively engage with cross-functional teams and mentor junior engineers to achieve shared goals

• A Challenge spirit demonstrating exceptional problem-solving skills to tackle complex technical hurdles and proactively suggest innovative improvements to our systems and processes

• An Own mindset you take full accountability for outcomes from design through production and you raise the bar on quality and maintainability

Nice to have

• Experience in identity and access management authentication (SSO SAML OIDC) and authorization models (RBAC ABAC policy engines)

• Experience building billing subscription or metering systems at scale

• Background in multi-tenant enterprise SaaS platforms

• Experience with functional Scala is a strong plus

Benefits & perks (UK full-time employees):

• Generous PTO plus company holidays

• Comprehensive medical and dental insurance

• Paid parental leave for all parents (12 weeks)

• Fertility and family planning support

• Early-detection cancer testing through Galleri

• Competitive pension scheme and company contribution

• Annual work-life stipends for:

  • Wellness stipend for gym massage/chiropractor personal training etc.

  • Learning and development stipend

• Company-wide off-sites and team off-sites

• Competitive compensation and company stock options

Required Experience:

Staff IC