Jobs and Careers

Principal Software Engineer, AI & Platform

UKRemotefull_timeVerifiedPosted 25 Jun 2026

About the role

At Koala Health, we have our eyes set on an ambitious goal: to make managing your pet’s health simple and delightful. We’ve already launched our pharmacy service that allows people to shop for their pets’ medications and supplements online and get them delivered to their doorstep in presorted medication pouches. Now we’re focused on continuing to improve that experience while building a suite of new products and services that will make the pet health experience even better. We are hiring a Principal Software Engineer to serve as a technical leader across the engineering organization. This is a highly hands-on role for an experienced engineer who enjoys building production systems while also influencing architecture, engineering standards, developer productivity, and the adoption of AI throughout the software development lifecycle.You will work closely with engineering, product, operations, and company leadership to identify opportunities, define technical direction, and drive execution on initiatives that have company-wide impact.Success in this role means:

Architecting systems that scale with the business.
Raising engineering quality and operational excellence.
Accelerating development velocity through effective use of AI.
Establishing best practices for AI-assisted and agentic software development.
Mentoring engineers and helping the team make better technical decisions.
Leveraging technology to simplify complex operational workflows and improve customer experiences.

Responsibilities

Technical Leadership & Architecture

Define and evolve architectural standards across customer-facing and operational systems.
Lead the design of complex software systems, integrations, workflows, and data models.
Drive long-term technical strategy while balancing short-term business priorities.
Identify technical risks and opportunities early and develop pragmatic plans to address them.
Lead architectural reviews and guide major technical decisions across teams.
Establish patterns that improve reliability, maintainability, scalability, and developer productivity.

AI-Driven Engineering

Champion AI-assisted software development across the organization.
Define best practices for leveraging LLMs in coding, testing, debugging, documentation, code review, and operational workflows.
Design and build agentic systems that automate engineering and business processes.
Evaluate emerging AI technologies and determine where they can create measurable value.
Help iterate on Koala's approach to AI-enabled software development and organizational productivity.
Ensure AI systems are implemented responsibly, securely, and with appropriate operational safeguards.

Engineering Excellence

Raise the bar for code quality, testing, documentation, and operational readiness.
Drive improvements in CI/CD, deployment safety, developer experience, and engineering workflows.
Establish standards for observability, monitoring, alerting, and incident response.
Introduce tooling and automation that improve engineering velocity without sacrificing quality.
Foster a culture of ownership, continuous improvement, and technical excellence.

Delivery & Cross-Functional Collaboration

Partner closely with Product, Operations, Pharmacy, Customer Care, Growth, and Finance teams to understand business challenges and design effective solutions.
Translate ambiguous business requirements into scalable technical approaches.
Lead initiatives from concept through implementation, rollout, and operational support.
Ensure technical decisions align with company goals and customer outcomes.