Principal Engineer (SaaS)

Location: London, UK. Hybrid working is required: 3 days per week in the London office during the first 6 months, followed by at least 2 days per week.

Salary: £120,000–£140,000 per year.

Company

hirify.global develops regulatory compliance monitoring and reporting software for financial institutions, supporting a global client community and enterprise SaaS workloads.

What you will do

• Set technical direction across the Surveillance estate and guide senior engineers through complex engineering problems.
• Establish reliability, correctness monitoring, observability, incident response, escalation, and disaster recovery patterns.
• Raise engineering standards for testing, design reviews, deployment safety, software craftsmanship, and developer productivity.
• Maintain architectural coherence across client environments, domain interfaces, lifecycle management, and production delivery.
• Shape security architecture covering environment isolation, privileged access, workload identity, SCIM 2.0, and enterprise identity integration.
• Improve cloud cost optimisation, capacity strategy, client-level cost visibility, technical assurance, and commercial support.

Requirements

• Permission to work in the UK without visa sponsorship is required.
• Principal-level experience with deep expertise in at least one area such as distributed systems, data platforms, application engineering, machine learning, or platform infrastructure.
• Hands-on experience designing, building, or unblocking commercially significant technical work.
• Experience leading senior engineers, expanding their ownership, and raising engineering standards across teams.
• Strong understanding of testing, code review, change safety, developer productivity, security controls, identity and access management, and client environment isolation.
• Ability to work across architecture, code, incidents, client conversations, commercial considerations, and distributed engineering centres.

Nice to have

• Experience with AWS, Azure, Kubernetes, EKS, Terraform, Helm, GitOps, CI/CD, Elasticsearch, Kafka, PostgreSQL, ClickHouse, Python services, Prometheus, or multi-cell client environments.
• Experience working with enterprise clients, client CISOs, technical assurance, data residency, disaster recovery, or FinOps.

Culture & Benefits

• Flexible hybrid working with regular in-office collaboration.
• Private health insurance, life insurance, flexible stipend, and mental health coaching.
• Matched pension contribution of up to 10%.
• £1,000 annual learning budget, unlimited professional development leave, and peer-led learning sessions.
• 25 days of holiday, additional long-service leave, 26 weeks of leave for all new parents, volunteering leave, and a birthday day off.
• Inclusive workplace with flexibility around religious observances and cultural celebrations.

Hiring process

• Introductory video call.
• Hiring manager and competency interviews by video.
• Final interview and team meeting on-site.