data engineer

ai engineer

software engineer

machine learning engineer

senior ai engineer

growth engineer

Lottie

<div>Title: Senior Growth Engineer
Department: Engineering
Salary: &pound;75,000 - &pound;95,000
Benefits &amp; Culture: Lottie&rsquo;s careers page here, Lottie&rsquo;s tech careers page here
Meet our CTPO: Solving hard problems in care
Equity: A very generous EMI share offering.
Holiday: 26 days + bank holidays.
Mission: Elevate later life for everybody and build the care sector of the future.
Office Policy: Hybrid with a two core office days per week.
Office Location: London Bridge, London, UK<h1 class="jobSectionHeader">
The Opportunity:</h1>
Lottie's marketplace connects millions of families with the right care at the right time. We've built something real - now we need to grow it faster, smarter, and with more precision than a traditional engineering team can.
We're looking for a Senior Growth Engineer to join a small, focused Marketplace team and own the full experiment loop - from hypothesis to code to result. You'll work closely with a PM and designer to run high-velocity tests, feed signal back to Google to sharpen our ad performance, and build the lightweight tooling that lets us learn faster than our competitors.
This is a role for someone who ships first, learns fast, and doesn't look back. If you need things to be perfect before they go live, this probably isn't the right fit.<h1 class="jobSectionHeader">
What does this role involve?</h1><ul><li>
Running end-to-end experiments across Lottie's marketplace, from ideation through implementation to result analysis</li><li>
Building and optimising conversion-focused front-end experiences, often with limited design input</li><li>
Writing code that sends performance data back to Google to improve ad targeting and campaign efficiency</li><li>
Automating parts of our Google Ads configuration and campaign management</li><li>
Owning A/B test pipelines and iterating quickly based on real usage data</li><li>
Working autonomously within a lean, fast team</li></ul><h1 class="jobSectionHeader">
What problems will you be solving?</h1><ul><li>
Turning traffic into outcomes. Our marketplace is trusted by half a million families a month. You'll be closing the gap between the families who land on Lottie and the ones who find the right care. Every experiment you run is a chance to make that faster, clearer, and more effective.</li><li>
Making our ad spend smarter. You'll build the pipelines and integrations that help Google understand what a good Lottie outcome looks like, so our campaigns optimise toward the things that actually matter.</li><li>
Moving fast in a space that matters. Care decisions are urgent and emotionally charged. Getting families to the right information faster isn't just a conversion metric. It's a meaningful outcome for real people.</li></ul><h1 class="jobSectionHeader">
We think you&rsquo;ll be a great fit if&hellip;</h1><ul><li>
You have 5+ years of software engineering experience, front-end leaning with genuine full-stack breadth</li><li>
You think in experiments. You can articulate what moved because of your work, not just what you built</li><li>
You're comfortable with throwaway work. When a test fails, you kill it and move on</li><li>
You're autonomous and low-dependency. You thrive with a hypothesis and a deadline, not a detailed spec</li><li>
You're data-driven. You define success before you build, and you look at the numbers before you declare a win</li><li>
AI tools like Claude Code are already a big part of how you work, and you&rsquo;re hungry to get better at them</li></ul>
Sound like you but not quite 100%? Apply anyway - we're looking for potential and passion, not perfect CV match!<h1 class="jobSectionHeader">
This role isn&rsquo;t for you if&hellip;</h1><ul><li>
You prefer depth over breadth and one big build over many small bets</li><li>
You need clearly scoped requirements before you can move</li><li>
You're looking for a team with lots of process and structure around you</li><li>
Our mission to transform later life care doesn't resonate with you</li></ul><h1 class="jobSectionHeader">
Lottie&rsquo;s Interview Process</h1><ul><li>
Intro call with our Talent Lead (20 min, remote)</li><li>
Engineering Manager interview (45 min, remote)</li><li>
Technical assessment: coding pairing session and 2nd session (1h each, remote)</li><li>
Behavioural interview with Hiring Manager (45 mins, remote)</li><li>
Final interview with Will Donnelly, Co-Founder &amp; CEO (30 mins, in person, London Bridge)</li></ul>
Candidate Experience: All candidates will be informed of their application status.<ul><li>
Pre-Screen &amp; First Interview: You'll receive an email notification, but no specific feedback will be provided at this stage.</li><li>
Hiring Manager Interview: If you are unsuccessful after this interview, you will receive constructive feedback via email.</li><li>
Technical Interviews: If you are not successful after these, you'll receive constructive feedback via email and be offered a debrief call with our Talent Lead.</li><li>
Final Interview: For final-stage candidates who are not offered the role, we will provide your feedback live via a phone call.</li></ul><h1 class="jobSectionHeader">
Meet Lottie</h1>
Founded in London in July 2021, Lottie is a fast growth HealthTech start-up aiming to build the world&rsquo;s first SaaS enabled marketplace for care and with a goal of allowing families to seamlessly book care online in a similar manner to reserving a holiday stay via Airbnb or Expedia.
Since launching in July 2021, Lottie has supported millions of care seekers find the right care for loved ones and has raised over &pound;25m from leading venture capital funds including Accel, General Catalyst and Kindred, as well as from well known technology entrepreneurs including Mike Hudack (ex-CPTO of Deliveroo &amp; Monzo) and Tom Blomfield (ex-CEO of Monzo Bank). More recently, Lottie was the acclaimed winner of LinkedIn and Startup.co.uk Top Startup awards.
As of today, Lottie offers four core products and services, including:<ul><li>
Lottie (B2B2C Marketplace) - Free service that helps families find the UK&rsquo;s best care homes and home care services.</li><li>
Found by Lottie (B2B Vertical SaaS) - AI-native OS software supporting care providers to effectively manage their enquiries, occupancy and finances.</li><li>
Seniorcare by Lottie (B2B Vertical SaaS) - Employee benefit helping companies deliver outstanding eldercare support to their employees.</li><li>
Eliza by Lottie (B2B Vertical SaaS) AI agents that handle care home enquiries - so no family goes unanswered. Launch video here.</li></ul><h1 class="jobSectionHeader">
Why Lottie?</h1><ul><li>
Career Opportunity - A rare chance to own the full growth loop with real autonomy and real impact from day one.</li><li>
Early Hire Benefits - Be an early hire at one of the UK&rsquo;s fastest growing startups and benefit from fast career progression, as well as a generous stock options package.</li><li>
Mission - Tech for good that aims to build the care industry of the future and to positively impact millions of peoples lives. Care is one of the final remaining large consumer industries that is yet to be disrupted and positively revolutionised by technology.</li><li>
Investors - Series A backed startup having raised &pound;25m+ from tier 1 venture capital investors including Accel and General Catalyst.</li><li>
Global Opportunity &amp; Scalability - Be part of a company that is solving a real tangible problem that every family around the world faces at some point in their life.</li><li>
People - Join a kind, talented and mission driven team that loves coming to work every day.</li><li>
Culture - Excellent employee compensation/benefits, hybrid office policy and outstanding company culture with a 4.9/5 employee review score on Glassdoor.</li><li>
Award Winning - Acclaimed winner of LinkedIn&rsquo;s 2024 &ldquo;Top Startups&rdquo; and named &ldquo;the UK&rsquo;s number one startup for 2025&rdquo; in Startup.co.uk 100 Index.</li></ul> 
We want to create an inclusive environment that celebrates the diversity of our people whilst enabling them to do the best work of their careers. We are committed to ensuring that all our people processes are equitable. 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 during the application or interview process, please let us know at Alice.Rooke@lottie.org
Compensation Range: &pound;75K - &pound;95K</div>

Senior Growth Engineer

<div>Title: Senior Growth Engineer - Remote
Department: Engineering
Salary: &pound;75,000 - &pound;95,000
Benefits &amp; Culture: Lottie&rsquo;s careers page here, Lottie&rsquo;s tech careers page here
Meet our CTPO: Solving hard problems in care
Equity: A very generous EMI share offering.
Holiday: 26 days + bank holidays.
Mission: Elevate later life for everybody and build the care sector of the future.
Office Policy: Fully remote, you&rsquo;ll need to be in Europe.
HQ: London Bridge, London, UK<h1 class="jobSectionHeader">
The Opportunity:</h1>
Lottie's marketplace connects millions of families with the right care at the right time. We've built something real - now we need to grow it faster, smarter, and with more precision than a traditional engineering team can.
We're looking for a Senior Growth Engineer to join a small, focused Marketplace team and own the full experiment loop - from hypothesis to code to result. You'll work closely with a PM and designer to run high-velocity tests, feed signal back to Google to sharpen our ad performance, and build the lightweight tooling that lets us learn faster than our competitors.
This is a role for someone who ships first, learns fast, and doesn't look back. If you need things to be perfect before they go live, this probably isn't the right fit.<h1 class="jobSectionHeader">
What does this role involve?</h1><ul><li>
Running end-to-end experiments across Lottie's marketplace, from ideation through implementation to result analysis</li><li>
Building and optimising conversion-focused front-end experiences, often with limited design input</li><li>
Writing code that sends performance data back to Google to improve ad targeting and campaign efficiency</li><li>
Automating parts of our Google Ads configuration and campaign management</li><li>
Owning A/B test pipelines and iterating quickly based on real usage data</li><li>
Working autonomously within a lean, fast team</li></ul><h1 class="jobSectionHeader">
What problems will you be solving?</h1><ul><li>
Turning traffic into outcomes. Our marketplace is trusted by half a million families a month. You'll be closing the gap between the families who land on Lottie and the ones who find the right care. Every experiment you run is a chance to make that faster, clearer, and more effective.</li><li>
Making our ad spend smarter. You'll build the pipelines and integrations that help Google understand what a good Lottie outcome looks like, so our campaigns optimise toward the things that actually matter.</li><li>
Moving fast in a space that matters. Care decisions are urgent and emotionally charged. Getting families to the right information faster isn't just a conversion metric. It's a meaningful outcome for real people.</li></ul><h1 class="jobSectionHeader">
We think you&rsquo;ll be a great fit if&hellip;</h1><ul><li>
You have 5+ years of software engineering experience, front-end leaning with genuine full-stack breadth</li><li>
You think in experiments. You can articulate what moved because of your work, not just what you built</li><li>
You're comfortable with throwaway work. When a test fails, you kill it and move on</li><li>
You're autonomous and low-dependency. You thrive with a hypothesis and a deadline, not a detailed spec</li><li>
You're data-driven. You define success before you build, and you look at the numbers before you declare a win</li><li>
AI tools like Claude Code are already a big part of how you work, and you&rsquo;re hungry to get better at them</li></ul>
Sound like you but not quite 100%? Apply anyway - we're looking for potential and passion, not perfect CV match!<h1 class="jobSectionHeader">
This role isn&rsquo;t for you if&hellip;</h1><ul><li>
You prefer depth over breadth and one big build over many small bets</li><li>
You need clearly scoped requirements before you can move</li><li>
You're looking for a team with lots of process and structure around you</li><li>
Our mission to transform later life care doesn't resonate with you</li></ul><h1 class="jobSectionHeader">
Lottie&rsquo;s Interview Process</h1><ul><li>
Intro call with our Talent Lead (20 min, remote)</li><li>
Engineering Manager interview (45 min, remote)</li><li>
Technical assessment: coding pairing session and 2nd session (1h each, remote)</li><li>
Behavioural interview with Hiring Manager (45 mins, remote)</li><li>
Final interview with Will Donnelly, Co-Founder &amp; CEO (30 mins, remote)</li></ul>
Candidate Experience: All candidates will be informed of their application status.<ul><li>
Pre-Screen &amp; First Interview: You'll receive an email notification, but no specific feedback will be provided at this stage.</li><li>
Hiring Manager Interview: If you are unsuccessful after this interview, you will receive constructive feedback via email.</li><li>
Technical Interviews: If you are not successful after these, you'll receive constructive feedback via email and be offered a debrief call with our Talent Lead.</li><li>
Final Interview: For final-stage candidates who are not offered the role, we will provide your feedback live via a phone call.</li></ul><h1 class="jobSectionHeader">
Meet Lottie</h1>
Founded in London in July 2021, Lottie is a fast growth HealthTech start-up aiming to build the world&rsquo;s first SaaS enabled marketplace for care and with a goal of allowing families to seamlessly book care online in a similar manner to reserving a holiday stay via Airbnb or Expedia.
Since launching in July 2021, Lottie has supported millions of care seekers find the right care for loved ones and has raised over &pound;25m from leading venture capital funds including Accel, General Catalyst and Kindred, as well as from well known technology entrepreneurs including Mike Hudack (ex-CPTO of Deliveroo &amp; Monzo) and Tom Blomfield (ex-CEO of Monzo Bank). More recently, Lottie was the acclaimed winner of LinkedIn and Startup.co.uk Top Startup awards.
As of today, Lottie offers four core products and services, including:<ul><li>
Lottie (B2B2C Marketplace) - Free service that helps families find the UK&rsquo;s best care homes and home care services.</li><li>
Found by Lottie (B2B Vertical SaaS) - AI-native OS software supporting care providers to effectively manage their enquiries, occupancy and finances.</li><li>
Seniorcare by Lottie (B2B Vertical SaaS) - Employee benefit helping companies deliver outstanding eldercare support to their employees.</li><li>
Eliza by Lottie (B2B Vertical SaaS) AI agents that handle care home enquiries - so no family goes unanswered. Launch video here.</li></ul><h1 class="jobSectionHeader">
Why Lottie?</h1><ul><li>
Career Opportunity - A rare chance to own the full growth loop with real autonomy and real impact from day one.</li><li>
Early Hire Benefits - Be an early hire at one of the UK&rsquo;s fastest growing startups and benefit from fast career progression, as well as a generous stock options package.</li><li>
Mission - Tech for good that aims to build the care industry of the future and to positively impact millions of peoples lives. Care is one of the final remaining large consumer industries that is yet to be disrupted and positively revolutionised by technology.</li><li>
Investors - Series A backed startup having raised &pound;25m+ from tier 1 venture capital investors including Accel and General Catalyst.</li><li>
Global Opportunity &amp; Scalability - Be part of a company that is solving a real tangible problem that every family around the world faces at some point in their life.</li><li>
People - Join a kind, talented and mission driven team that loves coming to work every day.</li><li>
Culture - Excellent employee compensation/benefits, remote policy and outstanding company culture with a 4.9/5 employee review score on Glassdoor.</li><li>
Award Winning - Acclaimed winner of LinkedIn&rsquo;s 2024 &ldquo;Top Startups&rdquo; and named &ldquo;the UK&rsquo;s number one startup for 2025&rdquo; in Startup.co.uk 100 Index.</li></ul> 
We want to create an inclusive environment that celebrates the diversity of our people whilst enabling them to do the best work of their careers. We are committed to ensuring that all our people processes are equitable. 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 during the application or interview process, please let us know at Alice.Rooke@lottie.org
Compensation Range: &pound;75K - &pound;95K</div>

Senior Growth Engineer - Remote

<div><div><h2 class="jobSectionHeader">Location</h2>
London
</div><div><h2 class="jobSectionHeader">Address</h2>
London, England
</div><div><h2 class="jobSectionHeader">Employment Type</h2>
Full time
</div><div><h2 class="jobSectionHeader">Location Type</h2>
Hybrid
</div><div><h2 class="jobSectionHeader">Department</h2>
Engineering
</div><div><h2 class="jobSectionHeader">Compensation</h2>
<ul><li>&pound;75K &ndash; &pound;95K &bull; Offers Equity</li></ul></div></div>
 <div><div>️ Title: Senior Growth Engineer
Department: Engineering
Salary: &pound;75,000 - &pound;95,000
Benefits &amp; Culture: Lottie&rsquo;s careers page here, Lottie&rsquo;s tech careers page here
Meet our CTPO: Solving hard problems in care
Equity: A very generous EMI share offering.
Holiday: 26 days + bank holidays.
Mission: Elevate later life for everybody and build the care sector of the future.
Office Policy: Hybrid with a two core office days per week.
Office Location: London Bridge, London, UK
<h1 class="jobSectionHeader">The Opportunity:</h1>
Lottie's marketplace connects millions of families with the right care at the right time. We've built something real - now we need to grow it faster, smarter, and with more precision than a traditional engineering team can.
We're looking for a Senior Growth Engineer to join a small, focused Marketplace team and own the full experiment loop - from hypothesis to code to result. You'll work closely with a PM and designer to run high-velocity tests, feed signal back to Google to sharpen our ad performance, and build the lightweight tooling that lets us learn faster than our competitors.
This is a role for someone who ships first, learns fast, and doesn't look back. If you need things to be perfect before they go live, this probably isn't the right fit.
<h1 class="jobSectionHeader">What does this role involve?</h1>
<ul><li>Running end-to-end experiments across Lottie's marketplace, from ideation through implementation to result analysis
</li><li>Building and optimising conversion-focused front-end experiences, often with limited design input
</li><li>Writing code that sends performance data back to Google to improve ad targeting and campaign efficiency
</li><li>Automating parts of our Google Ads configuration and campaign management
</li><li>Owning A/B test pipelines and iterating quickly based on real usage data
</li><li>Working autonomously within a lean, fast team
</li></ul><h1 class="jobSectionHeader">What problems will you be solving?</h1>
<ul><li>Turning traffic into outcomes. Our marketplace is trusted by half a million families a month. You'll be closing the gap between the families who land on Lottie and the ones who find the right care. Every experiment you run is a chance to make that faster, clearer, and more effective.
</li><li>Making our ad spend smarter. You'll build the pipelines and integrations that help Google understand what a good Lottie outcome looks like, so our campaigns optimise toward the things that actually matter.
</li><li>Moving fast in a space that matters. Care decisions are urgent and emotionally charged. Getting families to the right information faster isn't just a conversion metric. It's a meaningful outcome for real people.
</li></ul><h1 class="jobSectionHeader">We think you&rsquo;ll be a great fit if&hellip;</h1>
<ul><li>You have 5+ years of software engineering experience, front-end leaning with genuine full-stack breadth
</li><li>You think in experiments. You can articulate what moved because of your work, not just what you built
</li><li>You're comfortable with throwaway work. When a test fails, you kill it and move on
</li><li>You're autonomous and low-dependency. You thrive with a hypothesis and a deadline, not a detailed spec
</li><li>You're data-driven. You define success before you build, and you look at the numbers before you declare a win
</li><li>AI tools like Claude Code are already a big part of how you work, and you&rsquo;re hungry to get better at them
</li></ul>Sound like you but not quite 100%? Apply anyway - we're looking for potential and passion, not perfect CV match!
<h1 class="jobSectionHeader">This role isn&rsquo;t for you if&hellip;</h1>
<ul><li>You prefer depth over breadth and one big build over many small bets
</li><li>You need clearly scoped requirements before you can move
</li><li>You're looking for a team with lots of process and structure around you
</li><li>Our mission to transform later life care doesn't resonate with you
</li></ul><h1 class="jobSectionHeader">Lottie&rsquo;s Interview Process</h1>
<div><ul><li>Intro call with our Talent Lead (20 min, remote)
</li></ul><ul><li>Engineering Manager interview (45 min, remote)
</li></ul><ul><li>Technical assessment: coding pairing session and 2nd session (1h each, remote)
</li></ul><ul><li>Behavioural interview with Hiring Manager (45 mins, remote)
</li></ul><ul><li>Final interview with Will Donnelly, Co-Founder &amp; CEO (30 mins, in person, London Bridge)
</li></ul></div>Candidate Experience: All candidates will be informed of their application status.
<ul><li>Pre-Screen &amp; First Interview: You'll receive an email notification, but no specific feedback will be provided at this stage.
</li><li>Hiring Manager Interview: If you are unsuccessful after this interview, you will receive constructive feedback via email.
</li><li>Technical Interviews: If you are not successful after these, you'll receive constructive feedback via email and be offered a debrief call with our Talent Lead.
</li><li>Final Interview: For final-stage candidates who are not offered the role, we will provide your feedback live via a phone call.
</li></ul><h1 class="jobSectionHeader">Meet Lottie</h1>
Founded in London in July 2021, Lottie is a fast growth HealthTech start-up aiming to build the world&rsquo;s first SaaS enabled marketplace for care and with a goal of allowing families to seamlessly book care online in a similar manner to reserving a holiday stay via Airbnb or Expedia.
Since launching in July 2021, Lottie has supported millions of care seekers find the right care for loved ones and has raised over &pound;25m from leading venture capital funds including Accel, General Catalyst and Kindred, as well as from well known technology entrepreneurs including Mike Hudack (ex-CPTO of Deliveroo &amp; Monzo) and Tom Blomfield (ex-CEO of Monzo Bank). More recently, Lottie was the acclaimed winner of LinkedIn and Startup.co.uk Top Startup awards.
As of today, Lottie offers four core products and services, including:
<ul><li>Lottie (B2B2C Marketplace) - Free service that helps families find the UK&rsquo;s best care homes and home care services.
</li><li>Found by Lottie (B2B Vertical SaaS) - AI-native OS software supporting care providers to effectively manage their enquiries, occupancy and finances.
</li><li>Seniorcare by Lottie (B2B Vertical SaaS) - Employee benefit helping companies deliver outstanding eldercare support to their employees.
</li><li>Eliza by Lottie (B2B Vertical SaaS) AI agents that handle care home enquiries - so no family goes unanswered. Launch video here.
</li></ul><h1 class="jobSectionHeader">Why Lottie?</h1>
<ul><li>Career Opportunity - A rare chance to own the full growth loop with real autonomy and real impact from day one.
</li><li>Early Hire Benefits - Be an early hire at one of the UK&rsquo;s fastest growing startups and benefit from fast career progression, as well as a generous stock options package.
</li><li>Mission - Tech for good that aims to build the care industry of the future and to positively impact millions of peoples lives. Care is one of the final remaining large consumer industries that is yet to be disrupted and positively revolutionised by technology.
</li><li>Investors - Series A backed startup having raised &pound;25m+ from tier 1 venture capital investors including Accel and General Catalyst.
</li><li>Global Opportunity &amp; Scalability - Be part of a company that is solving a real tangible problem that every family around the world faces at some point in their life.
</li><li>People - Join a kind, talented and mission driven team that loves coming to work every day.
</li><li>Culture - Excellent employee compensation/benefits, hybrid office policy and outstanding company culture with a 4.9/5 employee review score on Glassdoor.
</li><li>Award Winning - Acclaimed winner of LinkedIn&rsquo;s 2024 &ldquo;Top Startups&rdquo; and named &ldquo;the UK&rsquo;s number one startup for 2025&rdquo; in Startup.co.uk 100 Index. 
</li></ul> 
We want to create an inclusive environment that celebrates the diversity of our people whilst enabling them to do the best work of their careers. We are committed to ensuring that all our people processes are equitable. 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 during the application or interview process, please let us know at Alice.Rooke@lottie.org
Compensation Range: &pound;75K - &pound;95K</div></div>

Senior Growth Engineer Engineering • London • Full time • Hybrid £75K – £95K • Offers Equity

<div><div><h2 class="jobSectionHeader">Location</h2>
London
</div><div><h2 class="jobSectionHeader">Address</h2>
London, England
</div><div><h2 class="jobSectionHeader">Employment Type</h2>
Full time
</div><div><h2 class="jobSectionHeader">Location Type</h2>
Hybrid
</div><div><h2 class="jobSectionHeader">Department</h2>
Engineering
</div><div><h2 class="jobSectionHeader">Compensation</h2>
<ul><li>&pound;75K &ndash; &pound;95K &bull; Offers Equity</li></ul></div></div>
 <div><div>️ Title: Senior Growth Engineer - Remote
Department: Engineering
Salary: &pound;75,000 - &pound;95,000
Benefits &amp; Culture: Lottie&rsquo;s careers page here, Lottie&rsquo;s tech careers page here
Meet our CTPO: Solving hard problems in care
Equity: A very generous EMI share offering.
Holiday: 26 days + bank holidays.
Mission: Elevate later life for everybody and build the care sector of the future.
Office Policy: Fully remote, you&rsquo;ll need to be in Europe.
HQ: London Bridge, London, UK
<h1 class="jobSectionHeader">The Opportunity:</h1>
Lottie's marketplace connects millions of families with the right care at the right time. We've built something real - now we need to grow it faster, smarter, and with more precision than a traditional engineering team can.
We're looking for a Senior Growth Engineer to join a small, focused Marketplace team and own the full experiment loop - from hypothesis to code to result. You'll work closely with a PM and designer to run high-velocity tests, feed signal back to Google to sharpen our ad performance, and build the lightweight tooling that lets us learn faster than our competitors.
This is a role for someone who ships first, learns fast, and doesn't look back. If you need things to be perfect before they go live, this probably isn't the right fit.
<h1 class="jobSectionHeader">What does this role involve?</h1>
<ul><li>Running end-to-end experiments across Lottie's marketplace, from ideation through implementation to result analysis
</li><li>Building and optimising conversion-focused front-end experiences, often with limited design input
</li><li>Writing code that sends performance data back to Google to improve ad targeting and campaign efficiency
</li><li>Automating parts of our Google Ads configuration and campaign management
</li><li>Owning A/B test pipelines and iterating quickly based on real usage data
</li><li>Working autonomously within a lean, fast team
</li></ul><h1 class="jobSectionHeader">What problems will you be solving?</h1>
<ul><li>Turning traffic into outcomes. Our marketplace is trusted by half a million families a month. You'll be closing the gap between the families who land on Lottie and the ones who find the right care. Every experiment you run is a chance to make that faster, clearer, and more effective.
</li><li>Making our ad spend smarter. You'll build the pipelines and integrations that help Google understand what a good Lottie outcome looks like, so our campaigns optimise toward the things that actually matter.
</li><li>Moving fast in a space that matters. Care decisions are urgent and emotionally charged. Getting families to the right information faster isn't just a conversion metric. It's a meaningful outcome for real people.
</li></ul><h1 class="jobSectionHeader">We think you&rsquo;ll be a great fit if&hellip;</h1>
<ul><li>You have 5+ years of software engineering experience, front-end leaning with genuine full-stack breadth
</li><li>You think in experiments. You can articulate what moved because of your work, not just what you built
</li><li>You're comfortable with throwaway work. When a test fails, you kill it and move on
</li><li>You're autonomous and low-dependency. You thrive with a hypothesis and a deadline, not a detailed spec
</li><li>You're data-driven. You define success before you build, and you look at the numbers before you declare a win
</li><li>AI tools like Claude Code are already a big part of how you work, and you&rsquo;re hungry to get better at them
</li></ul>Sound like you but not quite 100%? Apply anyway - we're looking for potential and passion, not perfect CV match!
<h1 class="jobSectionHeader">This role isn&rsquo;t for you if&hellip;</h1>
<ul><li>You prefer depth over breadth and one big build over many small bets
</li><li>You need clearly scoped requirements before you can move
</li><li>You're looking for a team with lots of process and structure around you
</li><li>Our mission to transform later life care doesn't resonate with you
</li></ul><h1 class="jobSectionHeader">Lottie&rsquo;s Interview Process</h1>
<div><ul><li>Intro call with our Talent Lead (20 min, remote)
</li></ul><ul><li>Engineering Manager interview (45 min, remote)
</li></ul><ul><li>Technical assessment: coding pairing session and 2nd session (1h each, remote)
</li></ul><ul><li>Behavioural interview with Hiring Manager (45 mins, remote)
</li></ul><ul><li>Final interview with Will Donnelly, Co-Founder &amp; CEO (30 mins, remote)
</li></ul></div>Candidate Experience: All candidates will be informed of their application status.
<ul><li>Pre-Screen &amp; First Interview: You'll receive an email notification, but no specific feedback will be provided at this stage.
</li><li>Hiring Manager Interview: If you are unsuccessful after this interview, you will receive constructive feedback via email.
</li><li>Technical Interviews: If you are not successful after these, you'll receive constructive feedback via email and be offered a debrief call with our Talent Lead.
</li><li>Final Interview: For final-stage candidates who are not offered the role, we will provide your feedback live via a phone call.
</li></ul><h1 class="jobSectionHeader">Meet Lottie</h1>
Founded in London in July 2021, Lottie is a fast growth HealthTech start-up aiming to build the world&rsquo;s first SaaS enabled marketplace for care and with a goal of allowing families to seamlessly book care online in a similar manner to reserving a holiday stay via Airbnb or Expedia.
Since launching in July 2021, Lottie has supported millions of care seekers find the right care for loved ones and has raised over &pound;25m from leading venture capital funds including Accel, General Catalyst and Kindred, as well as from well known technology entrepreneurs including Mike Hudack (ex-CPTO of Deliveroo &amp; Monzo) and Tom Blomfield (ex-CEO of Monzo Bank). More recently, Lottie was the acclaimed winner of LinkedIn and Startup.co.uk Top Startup awards.
As of today, Lottie offers four core products and services, including:
<ul><li>Lottie (B2B2C Marketplace) - Free service that helps families find the UK&rsquo;s best care homes and home care services.
</li><li>Found by Lottie (B2B Vertical SaaS) - AI-native OS software supporting care providers to effectively manage their enquiries, occupancy and finances.
</li><li>Seniorcare by Lottie (B2B Vertical SaaS) - Employee benefit helping companies deliver outstanding eldercare support to their employees.
</li><li>Eliza by Lottie (B2B Vertical SaaS) AI agents that handle care home enquiries - so no family goes unanswered. Launch video here.
</li></ul><h1 class="jobSectionHeader">Why Lottie?</h1>
<ul><li>Career Opportunity - A rare chance to own the full growth loop with real autonomy and real impact from day one.
</li><li>Early Hire Benefits - Be an early hire at one of the UK&rsquo;s fastest growing startups and benefit from fast career progression, as well as a generous stock options package.
</li><li>Mission - Tech for good that aims to build the care industry of the future and to positively impact millions of peoples lives. Care is one of the final remaining large consumer industries that is yet to be disrupted and positively revolutionised by technology.
</li><li>Investors - Series A backed startup having raised &pound;25m+ from tier 1 venture capital investors including Accel and General Catalyst.
</li><li>Global Opportunity &amp; Scalability - Be part of a company that is solving a real tangible problem that every family around the world faces at some point in their life.
</li><li>People - Join a kind, talented and mission driven team that loves coming to work every day.
</li><li>Culture - Excellent employee compensation/benefits, remote policy and outstanding company culture with a 4.9/5 employee review score on Glassdoor.
</li><li>Award Winning - Acclaimed winner of LinkedIn&rsquo;s 2024 &ldquo;Top Startups&rdquo; and named &ldquo;the UK&rsquo;s number one startup for 2025&rdquo; in Startup.co.uk 100 Index. 
</li></ul> 
We want to create an inclusive environment that celebrates the diversity of our people whilst enabling them to do the best work of their careers. We are committed to ensuring that all our people processes are equitable. 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 during the application or interview process, please let us know at Alice.Rooke@lottie.org
Compensation Range: &pound;75K - &pound;95K</div></div>

Senior Growth Engineer - Remote Engineering • London • Full time • Hybrid £75K – £95K • Offers Equity

White Circle

<div><h1 class="jobSectionHeader">About White Circle</h1>
White Circle is an AI Safety company building the safety, reliability, and optimization layer for AI systems. At the core of our platform are policies &ndash; simple natural-language rules that define what an AI model should and shouldn&rsquo;t do. We automatically test, enforce, and continuously improve these policies at scale.<ul><li>
We&rsquo;ve raised $11M from top funds, founders, and senior leaders at OpenAI, Anthropic, HuggingFace, Mistral, DeepMind, Datadog, Sentry, and others</li><li>
We process over 100M+ API calls every month</li><li>
We fine-tune and train our own LLMs so they run faster and cheaper than any open or proprietary model</li></ul>
We&rsquo;re at a multi-million dollar run rate already having signed customers like Lovable and multiple neobanks. You&rsquo;ll be joining at the most exciting time - early enough that the equity can be life changing but at a point where demand has been proven.
 
 
We&rsquo;re a small, highly focused team. If you want to work deeply on hard problems and build the category-defining company in AI safety - this role is for you!<h2 class="jobSectionHeader"> 
What You&rsquo;ll Do</h2>
Automate low-value work out of the commercial process so the Sales team can spend more time closing deals<ul><li>
Design and build the systems that power the how we find acquire, and retain customers (both outbound and inbound)</li><li>
Own the CRM: you make sure our data is clean, structured, and reliable</li><li>
Build internal tools, API integrations, and custom automation logic</li><li>
Have real ownership &amp; shape the playbook: what we build, use, how it fits together, and how it scales</li><li>
Design and deploy AI agents across the GTM motion (e.g., account research, pre-call intelligence, personalised outreach etc)</li><li>
Wire it directly into our operational systems so it changes how the team works</li><li>
Design the GTM data model (accounts, contacts and opportunities)</li><li>
Build and manage data pipeline, enrichment and integrations across the stack</li><li>
Build, ship and iterate fast</li></ul><h2 class="jobSectionHeader">
What We&rsquo;re Looking For</h2>
Background &amp; Experience<ul><li>
2+ years of experience in GTM engineering, technical RevOps, or a growth role where you were building automations and pipelines</li><li>
Experience designing and scaling systems in a high-growth company</li><li>
Hands-on with modern GTM tooling - Claude Code, Clay, Apollo, Instantly, n8n or similar - you've built multi-step enrichment and sequencing workflows, not just set up a table</li><li>
Comfortable with Python or SQL well enough to work with data, call APIs, and build lightweight scoring or enrichment logic</li><li>
Top-of-funnel focused - you know how to build systems that generate qualified pipeline at scale, from ICP definition through to booked meetings</li><li>
Experience in programmatic SEO and AEO</li><li>
Analytical and experimental mindset: proven ability to design tests, measure impact, and iterate quickly.</li><li>
Proven AI deployment experience (e.g., automations, agents, workflows)</li></ul><h2 class="jobSectionHeader">
What success looks like in the first 6 months</h2>
In your first six months, we would expect you to identify the highest-converting early segments, build a functioning outbound and follow-up engine, create clear messaging for one or two strong wedges, generate a meaningful pipeline of qualified conversations, and help convert early pilots or customers. Just as importantly, we would expect the company to understand its GTM motion far better because of your work.<h1 class="jobSectionHeader">
Compensation &amp; Benefits</h1><ul><li>
&pound;80k-&pound;110k salary</li><li>
Meaningful equity package</li><li>
All the hardware, tools, and services you need</li><li>
Team off-sites twice a year: we&rsquo;ve recently been to the Alps and to Saint-Tropez</li></ul><h1 class="jobSectionHeader">
How we hire</h1><ul><li>
Intro call with HR</li><li>
Take-home exercise</li><li>
Interview with Head of Revenue</li><li>
Final call with our CEO</li></ul>
Compensation Range: &pound;80K - &pound;100K</div>

Founding GTM Engineer

<div>We&rsquo;re seeking a future team member for the role of Director, Full-Stack Engineer to join our team. This role is located in London.
In this role, you&rsquo;ll make an impact in the following ways:
<ul><li>Lead by example in system design, code quality and agile development to engineer scalable and
</li><li>performant solutions across the full software lifecycle
</li><li>Leverage AI to its full capability to accelerate innovation and solution delivery and promote a culture of
</li><li>AI lead development
</li><li>Collaborate in small cross functional agile teams of talented individuals comprising of skilled product
</li><li>managers, traders, sales teams and fellow technologists all of whom put the client at the heart of
</li><li>everything they do
</li><li>Drive continuous improvement within the team - we value relentless curiosity and a growth mindset
</li><li>Work with Product Managers to devise and deliver new innovative FX products
</li><li>Provide mentorship and guidance across the team, fostering professional growth and technical development 
</li></ul>To be successful in this role, we&rsquo;re seeking the following:
<ul><li>Extensive years of experience in development
</li><li>Batchelor&rsquo;s degree in Computer Science, Mathematics or a similar field
</li><li>Experience in building mission critical systems, ideally in financial institutions
</li><li>Ability to work well within a fast-paced environment
</li><li>A results driven personality
</li><li>A passion for changing the status quo, driving out of the box thinking. Ability to adapt and lead through
</li><li>Change
</li><li>Prior experience of Front office trading systems
</li><li>Low latency trading experience
</li><li>Co-location Infrastructure knowledge
</li><li>Experience working with high performance messaging systems
</li><li>Hands on development with FIX APIs</li></ul></div>

Director, Full-Stack Engineer (10x)

Areti Group | B Corp™

<div>
 
 
 Multiple Senior / Staff Engineers | High-Growth Series B Startup
 
 
 
 
 
 
 We&rsquo;re partnered with a mission-led, VC-backed scaleup hiring across multiple engineering roles as they continue to grow their product and platform globally.
 
 
 
 
 <ul>
 <li>
 Hybrid working (4 days in office, flexible approach)
 </li>
 <li>
 Extremely strong salaries and stock option
 </li>
 </ul>
 
 
 
 
 
 Open roles include:
 
 
 <ul>
 <li>
 Senior Backend Engineers (Node/TS/AWS)
 </li>
 <li>
 Staff Backend Engineer (Node/TS/AWS)
 </li>
 <li>
 Full Stack Mobile Engineers (with React Native)
 </li>
 <li>
 AI Engineers (focused on building internal tools and automation)
 </li>
 </ul>
 
 
 
 
 You&rsquo;ll be joining a product-led engineering team working across core platform, discovery, and growth, building scalable systems that
 
 solve complex, real-world problems
 
 . Strong emphasis on commercial impact - not just building for the sake of tech.
 
 
 
 
 
 
 Why join?
 
 
 <ul>
 <li>
 Mission-driven business tackling a large, inefficient global market
 </li>
 <li>
 Strong backing and rapid international growth
 </li>
 <li>
 High ownership, fast-moving environment
 </li>
 <li>
 Close collaboration with product, growth, and leadership
 </li>
 </ul>
 
 
 
 
 Looking for engineers who care about impact, enjoy solving real problems, and want to build at pace.
 
</div>

Staff Software Engineer

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