Senior Software Engineer

Leonardo.Ai; United Kingdom; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A leading AI technology company in the United Kingdom is hiring a Senior Software Engineer to contribute to enterprise backend systems. You'll focus on designing stable integration APIs and enhancing system observability while engaging in a culture that emphasizes diversity and personal growth. This role offers flexible working conditions and a rewarding package, including equity and generous leave policies. Join us to make a meaningful impact in the field of AI.

Benefits

Reward package including equity

Inclusive parental leave policy with 18 weeks paid leave

Annual Vibe & Thrive allowance

Flexible leave options

Support for professional development

Engaging company events

Qualifications

• Strong technical foundations with sound judgment and clear communication.
• Comfortable building systems in which trust, contracts, and reliability are non-negotiable.

Responsibilities

• Design and evolve enterprise-grade backend services used directly by customers.
• Build stable APIs and integrations that support complex workflows.
• Develop billing, usage, and entitlement systems aligned to changing AI consumption patterns.
• Improve observability and reliability using real system data to guide decisions.
• Respond to incidents and strengthen systems over time.

Skills

Building and operating backend services in production

Hands-on experience with Node.js and AWS-based infrastructure

Owning complex, evolving systems used by external customers or partners

Balancing product requirements, reliability, and governance

Pragmatic approach to documentation

Interest in enterprise SaaS and integrations

Job description

The Role:

We’re hiring a Senior Software Engineer to join our Enterprise & Integrations Tribe.

This role is designed for engineers who have operated production systems for multiple years, supported real customers, and observed how systems perform under real-world pressure. You understand that good design isn’t proven at launch, it’s proven over time.

You’ll work on backend systems that allow Leonardo.Ai to function reliably in high-trust, professional environments, supporting enterprise customers, partners, and deep product integrations.

The work is practical, collaborative, and closely tied to real-world use, not abstract infrastructure for its own sake.

You’ve likely been on-call for systems you helped design, navigated at least one uncomfortable incident, and used those experiences to build better systems afterwards.

What the Team Owns:

• Authentication and access boundaries that reflect how organisations actually operate

• Enterprise APIs and partner integrations, including deep platform integrations with Canva

• Billing, usage, and entitlement models that keep AI usage fair, transparent, and predictable

• Reliability, compliance, and observability across customer‑critical systems

The core challenge is simple to describe, but difficult to do well:
helping organisations use generative AI safely, predictably, and at scale.

What You’ll Work On:

As a Senior Engineer in this tribe, you’ll work on long‑lived platform systems where decisions compound over time. Your work may include:

• Designing and evolving enterprise‑grade backend services used directly by customers and partners

• Building stable APIs and integrations that support complex workflows without slowing the platform

• Developing billing, usage, and entitlement systems aligned to changing AI consumption patterns

• Improving observability and reliability, using real system and usage data to guide decisions

• Translating probabilistic AI behaviour into predictable, governable product experiences

• Responding to incidents and using real failures and edge cases to strengthen systems over time

This is not feature churn. This is foundational work that organisations depend on.

How We Work:

Engineering at Leonardo.Ai is organised into small, stable squads (typically 4–6 people) within clearly defined tribes.

Squads are cross‑functional, with engineers working closely alongside Product, Design, and Machine Learning partners. Teams stay together long enough to deeply understand their domain, learn from real customer behaviour, and refine technical judgment, rather than rotating through short‑term projects.

Engineers own systems end‑to‑end: from design and delivery through to production support and evolution.

What We’re Looking For:

We’re looking for senior engineers who combine strong technical foundations with sound judgment and clear communication.

Skills We Love:

• Strong experience building and operating backend services in production

• Hands‑on experience with Node.js and AWS‑based infrastructure

• Comfort owning complex, evolving systems used by external customers or partners

• Experience balancing product requirements, reliability, and governance

• A pragmatic approach to documentation, incident response, and system evolution

• Interest in enterprise SaaS, integrations, platform APIs, or governance layers

You don’t need prior AI or enterprise‑sales experience. You need to be comfortable building systems in which trust, contracts, and reliability are non‑negotiable.

Our Culture:

• Inclusive Culture: We celebrate diversity and are committed to creating an inclusive environment where everyone feels valued and empowered. At Leonardo AI, your unique perspectives and experiences are welcomed and essential to our success.

• Flexible Work Environment: We understand the importance of work‑life balance. Enjoy the flexibility to work remotely or from our vibrant offices. We have employees all over Australia, ensuring you can thrive personally and professionally.

• Empowering Growth: Your development is our priority. We offer continuous learning opportunities and career growth tailored to your goals. You’ll be encouraged to grow and excel in your career at Leonardo AI.

• Impactful Work: Join us in shaping the future of AI. You'll work on innovative projects that have a meaningful impact, and your contributions will help drive advancements in AI creativity.

What's in it for you?

A range of benefits to set you up for every success in and outside of work. Here's a taste of what's on offer:

• Impact the future of AI

• Reward package including equity - we want our success to be yours too

• Inclusive parental leave policy that supports all parents & carers with 18 weeks paid leave

• An annual Vibe & Thrive allowance to support your wellbeing, social connection, office setup & more

• Flexible leave options that empower you to be a force for good, take time to recharge and support you personally, including remote working abroad

• Support with your professional development

• Fun and engaging company events, both virtual and in-person

Next Steps

Ready to revolutionise AI research and empower creativity worldwide? Apply now and join us at Leonardo.Ai to make a significant impact! We're rapidly expanding and seeking passionate people in various AI roles.

Don't hesitate! Even if you don't meet every requirement, consider applying and joining our innovative journey. We encourage you to apply and start the conversation, whether you’re based locally in New Zealand or overseas.