Founding Engineering Lead - Remote

lottie.org; Remote; GBP 87,000 - 125,000; Full time

Job summary

A fast-growth HealthTech start-up is seeking a Founding Engineering Lead to build a new product line focused on AI voice and chat agents. This remote role involves leading a small team, prototyping, and ensuring high-quality product delivery. The ideal candidate has over 7 years' experience in software engineering, values diversity, and is passionate about improving later life care.

Benefits

26 days holiday + bank holidays

Generous EMI share offering

Flexible working environment

Qualifications

• 7+ years of hands-on experience in software engineering.
• Experience mentoring engineers across the stack.
• Hands-on experience with LLMs and voice APIs.

Responsibilities

• Build a new product line from the ground up.
• Lead a team of product engineers.
• Ensure high quality and speed in development.

Skills

Self-starter

Hands-on experience in software engineering

Experience building with LLMs

Product-minded

Scrappy problem solver

Experience in cross-functional teams

Focus on impact

Embraced AI in workflow

Ability to ship MVPs

Values diversity and inclusion

Job description

Founding Engineering Lead – Remote

Title: Engineering Manager

Department: Engineering - reporting to the CPTO

Salary: £87,500 - £125,000 (depending on experience and seniority)

Benefits & Culture: Lottie’s careers page here, Lottie’s tech careers page here

Office Policy: Remote

Holiday: 26 days + bank holidays

Equity: A very generous EMI share offering

Mission: Elevate later life for everybody and build the care sector of the future

Head Office Location: London Bridge, London, UK

Opportunity

We are seeking a hands‑on Engineering leader to build a new product line from the ground up and lead a small team of product engineers working on AI voice & chat agents. You will work closely with our leadership to get this from 0 to 1 in record time, and integrate seamlessly into Found, our operating system for care. You will truly work at the intersection of product and engineering, mixing scrappiness and fast learning cycles with proper engineering to scale the product.

What does this role involve?

• Prototyping and building the foundation for our product. Owning the technical roadmap
• Coding alongside the team while also sharing the product hat with our GM, supported by our VP Product and CPTO
• Building and managing a team of 3 product engineers; helping them grow and deliver more impact
• Ensuring a high bar both in terms of speed and quality. Oscillating between the two depending on the context
• Helping the team operate effectively by breaking problems down into simpler ones for fast delivery and impact
• Wearing any other hat necessary to the success of the team

What problems will you be solving?

• Build AI voice and chat agents to help care homes provide a 5‑star service to people looking for care
• Ensuring our agents provide high quality responses and accurate information, with robust eval frameworks to measure and improve performance
• Integrating deeply into Found, our SaaS operating system, leveraging our CRM to enable care seekers to book viewings and get information seamlessly
• Fine‑tune voice quality, tone, and emotional intelligence to create warm, empathetic interactions that reflect our care values
• Build systems that balance LLM economics - managing token costs, latency trade‑offs, and knowing when to fine‑tune vs prompt engineer

We think you’ll be a great fit if…

• You are a self‑starter. You thrive in a fast‑paced environment and are comfortable working on challenges with many unknowns. You provide clarity and make things happen
• You have 7+ years of hands‑on experience in software engineering, including leading technical decisions and mentoring engineers and have worked across the stack
• You have hands‑on experience building with LLMs – whether fine‑tuning models, working with voice APIs, or building eval frameworks
• You have opinions on LLM observability, prompt engineering, and building reliable AI systems
• You are extremely product‑mind­­ed and conscious of what great looks like from an engineering point of view. You focus relentlessly on impact and decreasing the cost of change
• You know when to use duct tape and when to build for scale – comfortable shipping MVPs that work, then iterating based on real usage
• You have embraced AI in your workflow. You use Cursor, Claude, Code, Codex, or similar and try AI for all kinds of productivity improvements while understanding the limitations of existing LLMs
• You have built something 0 to 1 and worked in cross‑functional teams
• You value diversity and inclusion and are passionate about creating a space where everyone's voices are heard, respected, and celebrated
• You're someone who brings joy and enjoys building meaningful work relationships

This role isn’t for you if…

• Our mission to elevate later life care doesn't resonate with you
• You want very clear lanes and don't enjoy working in a fast‑paced environment with loosely defined requirements
• You don't enjoy being hands‑on anymore. We believe leaders should operate at all levels
• You don't know how to be scrappy

Interview Process

• Screening interview led by Lottie’s Talent Acquisition Lead
• First round interview led by Hiring Manager
• Technical assessment comprising two parts: a) AI‑enabled coding pairing session, b) System design interview
• Behavioural interview with Hiring Manager
• Final interview with Will Donnelly (Co‑Founder & CEO)

Candidate Experience

• The majority of feedback will be given via email and we try our best to give specific feedback where possible.
• Pre‑Screen & First Interview: you'll receive an email notification, but no specific feedback will be provided at this stage.
• Hiring Manager Interview: if you are unsuccessful, you will receive constructive feedback via email.
• Case Study: if you are not successful, you'll receive constructive feedback and be offered a debrief call with our Talent Lead.
• Final Interview: for candidates not offered the role, we will provide feedback live via a phone call.

Meet Lottie

Founded in London in July 2021, Lottie is a fast‑growth HealthTech start‑up aiming to build the world’s first SaaS‑enabled marketplace for care and allowing families to seamlessly book care online like reserving a holiday stay via Airbnb or Expedia. Since launching, Lottie has supported millions of care seekers find the right care for loved ones and has raised over £25 million from leading venture capital funds and technology entrepreneurs.

As of today, Lottie offers three core products and services:

• Lottie (B2B2C Marketplace) - Free service that helps families find the UK’s best care homes and home‑care services.
• Found by Lottie (B2B Vertical SaaS) - AI‑native OS software supporting care providers to effectively manage enquiries, occupancy, and finances.
• Seniorcare by Lottie (B2B Vertical SaaS) - Employee benefit helping companies deliver outstanding eldercare support to their employees.

We want to create an inclusive environment that celebrates diversity and is committed to equity. All applicants will be considered for employment without attention to ethnicity, religion, sexual orientation, gender identity, family or parental status, national origin, veteran, neurodiversity status or disability status. If you require reasonable accommodations, please let us know at [e-mail].