Staff Software Engineer
Definelycareers • London, England, United KingdomAbout the role
We’re looking for a high-calibre Staff Software Engineer to lead and evolve our frontend, shaping how legal professionals interact with complex documents.
At Definely, we build products like Cascade and Enhance that help lawyers understand, navigate, and act on contracts. A core challenge is translating complex AI capabilities into intuitive, high-quality user experiences that fit seamlessly into how people work.
We’re looking for someone who is highly product-minded, intellectually curious, and motivated by solving meaningful user problems. In this role, you’ll set the direction for our frontend, owning how we design, build, and scale user-facing systems, while contributing across the stack where needed.
You’ll work closely with product, design, and engineering leadership to shape both what we build and how we build it. As a Staff Engineer, you’ll drive technical and product decisions, raise the bar for quality, and play a key role in evolving our architecture and frontend strategy as we scale.
What you’ll do
Own and evolve our frontend architecture, setting direction for how we build scalable, high-quality user interfaces
Lead the development of user-facing features end-to-end, from shaping the problem with product and design to delivery and iteration
Translate complex AI capabilities into intuitive, performant, and reliable user experiences
Work across the stack where needed using TypeScript and Python, but with a primary focus on frontend excellence
Drive improvements in performance, usability, and overall product quality
Contribute to technical strategy and architectural decisions across the engineering team
Raise the bar for engineering standards, including code quality, testing, and maintainability
Mentor and support other engineers, helping to elevate frontend capability across the team
What you’ll bring:
Significant experience building and scaling complex, user-facing web applications
Deep expertise in modern frontend development (React, TypeScript) and strong understanding of frontend architecture
Strong product mindset, you think in terms of user problems and outcomes, not just implementation
Experience working closely with product and design to shape solutions, not just deliver them
Ability to take ownership of ambiguous problems and drive them through to impact
Good understanding of backend systems and ability to work across the stack when needed
Experience contributing to or leading architectural decisions
Strong communication skills and ability to influence across teams
We'll be lucky if you:
Have led or significantly shaped frontend architecture in a scaling product
Have experience building AI-powered or data-heavy user experiences
Enjoy working in product-driven, fast-paced environments
Care deeply about usability, performance, and craft in frontend development
Have experience mentoring or acting as a technical leader across teams
What we offer:
💰 Competitive salary + bonus
📈 Share options
🎉 Quarterly team socials & annual company offsite
🏡 We can offer hybrid or remote working for this role
🌍 1 month “work from anywhere”
🏖️ 25 days holiday + bank holidays
🎂 Take your birthday off
📚 £750 annual learning & development budget
🩺 Private healthcare (incl. dental & optical)
👶 Enhanced parental leave
🚲 Additional perks: Cycle to Work, Workplace Nursery salary sacrifice scheme, and top-quality equipment
About Definely
At Definely, we’re on a mission to simplify the way legal professionals access and understand complex information in legal documents. Trusted by a global community of customers, our LegalTech solutions integrate seamlessly into lawyers' daily workflows, making it easier to draft, review and navigate even the most complex contracts.
Our products provide instant access to essential information, enabling legal teams to review clauses and provisions in context, reduce risk and work more efficiently – all without disrupting their flow. At Definely, we’re dedicated to solving real challenges faced by legal professionals.
Joining Definely means becoming part of a forward-thinking, collaborative team that prioritises innovation and people. We create a supportive environment driven by a shared commitment to connection, growth and success.
Recognised in the top 25 of Deloitte's prestigious UK Technology Fast50 in 2023 and backed by Microsoft, Google and Octopus Ventures, we’re trusted by leading law firms and in-house legal teams, including A&O Shearman, Dentons, Deloitte, and Barclays, to streamline their workflows and mitigate risks.
Data Privacy Notice
By submitting your application, you agree that DEFEYENE LEGAL SOLUTIONS LIMITED ('Definely') may collect, process, and store your personal data as part of our recruitment process. We will use the information you provide to assess your qualifications for the role you are applying for and to communicate with you regarding your application.Your personal data will be stored for up to 12 months, after which it will be securely deleted unless we have another lawful basis to retain it. You have the right to access, correct, or request the deletion of your data at any time.For more details on how we handle your personal data and your rights, please send us an email to people@definely.com and we will send your our privacy policy.
If you have any concerns about how your data is being processed, please do not hesitate to contact us.