Senior Platform Engineer

Senior Platform Engineer

We're looking for an exceptional Senior Platform Engineer to join Definely during a pivotal stage of growth. Senior Platform Engineers get involved with the whole product infrastructure and tooling, building out novel and scalable solutions for engineers and customers. We're also responsible for reliability, security and automation.

What You'll Do:

The work we do in platform is broad and deep, but in a normal week you'll be involved in:

• Own the operational performance of our systems, analysing repetitive work and toil, and automating where most advantageous
• Manage our CI/CD system and improve the developer experience whilst maintaining error budgets and deployment safety
• Design and architect our platform to support product needs at a strategic level
• Build a highly robust cloud environment (mostly AWS) through IaC, automation and best-fit architectures
• Leading projects of improvement to our platform and ensuring delivery according to plan
• Collaborating closely with product engineering, security and leadership teams across the business

What You'll Bring:

• Strong experience in platform engineering, DevOps, or Infrastructure roles
• Expertise in Cloud tools and services (AWS is our primary cloud)
• Deep understanding of DevOps SRE practices
• Directing and architecting robust and resilient cloud services through IaC (we use Terraform)
• Knowledge of highly performant and strongly governed CI/CD practices and tooling
• Ability to lead technical projects and make pragmatic architectural decisions

We'll Be Lucky If You:

• Have experience with security products and tooling, and DevSecOps experience in a highly dynamic environment
• Have experience leading incident response and post incident reviews
• Deep experience with data platforms (databases, queues, caches, storage etc.)
• Have experience building AI/ML infrastructure or workloads
• Have worked in high growth SaaS or startup environments

What We Can Offer You:

• Competitive salary & annual bonus
• Share options
• Quarterly team socials & annual company offsite
• Hybrid working + 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:

Definely is revolutionising how legal professionals access and understand information in complex documents. Our LegalTech solutions integrate directly into legal workflows, enabling teams to draft, review, and interpret contracts more efficiently, without breaking focus.

We're proud to be recognised among the Top 25 in Deloitte's UK Technology Fast 50 and backed by Revaia, Microsoft, Google, and Octopus Ventures. Trusted by top firms like A&O Shearman, Dentons, Deloitte, and Barclays, we're building tools that empower legal teams to work smarter and reduce risk.

At Definely, you'll be part of a mission-driven, collaborative, and ambitious team committed to innovation and growth.

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 View email address on click.appcast.io 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.