Senior Software Engineer - Remote

Lottie; City Of London; Hybrid; GBP 75,000 - 95,000; Full time

Job summary

A leading HealthTech startup in London is seeking a Senior Software Engineer to drive the transformation of the care sector through technology. You will build a next-generation SaaS platform that enhances care home management. This role requires extensive knowledge of TypeScript and a collaborative mindset. The company offers a salary of £75K - £95K, hybrid working, and a mission-driven culture.

Benefits

Equity offerings

26 days holiday + bank holidays

Early hire benefits

Career-defining opportunities

Qualifications

• 4+ years of hands-on software engineering experience with strong TypeScript skills.
• Product-minded, able to translate business requirements into technical solutions.
• Experience with modern web technologies.

Responsibilities

• Build high-impact features for FoundOS with a cross-functional team.
• Write clean, tested, and maintainable code that ships daily.
• Collaborate with Product and Design teams on feature decisions.

Skills

TypeScript

Full-stack development

Collaboration

Problem-solving

AI experimentation

Job description

Location

London

Employment Type

Full time

Location Type

Hybrid

Department

Engineering

Compensation

• Senior £75K – £95K • Offers Equity

🏷️ Title: Senior Software Engineer

👫 Department: Engineering

💰 Salary: £75,000 - £100,000

🎁 Benefits & Culture: See here.

📈 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: Remote or Hybrid with a 2 core office days per week.

🌍 Office Location: Remote or London Bridge, London, UK

The Opportunity

The care sector is being transformed by technology, and we're looking for a Senior Software Engineer to drive this transformation. You'll build Found OS, our next-generation SaaS platform that's revolutionising care home management. You'll be working on the system that helps care providers manage enquiries, track occupancy, handle billing, and deliver better care to residents across the UK.

This is a hands-on role where you'll drive technical excellence while shipping fast. You'll work across our full stack (TypeScript, Node.js, React, Kubernetes), and experiment extensively with AI. We're looking for someone who embodies "outcomes over output" - someone who cares deeply about solving real problems for care providers, not just writing code.

💻 What does this role involve?

• Building high-impact features for FoundOS, with your cross functional team
• Writing clean, well-tested code that ships daily - we optimise for sustainable throughput and move fast.
• Collaborating with Product and Design to drive feature decisions based on care provider needs and business outcomes.
• Experimenting with AI tools and integrations to enhance both care provider workflows and internal productivity.
• Contributing to our platform evolution and improving developer experience.
• Contributing to our engineering culture of continuous improvement.

💪 What problems will you be solving?

• Revolutionising care management with AI - You'll integrate AI to automate mundane tasks, provide intelligent transcriptions and offer predictive analysis, freeing up care providers to focus on what matters most - resident care.
• Building the operational backbone of care homes - you'll develop the core FoundOS platform, building robust modules for enquiry tracking, resident occupancy, and billing. This work creates the essential tools care homes depend on daily to run their business efficiently and deliver excellent care.
• Connecting the fragmented care ecosystem - You'll create seamless integrations with crucial accounting software (QuickBooks, Sage) and care planning systems. Your work will also feed FoundOS data into our marketplace, providing unique insights that help families find the right care for their loved ones.
• Driving strategic decisions with data - You'll build comprehensive reporting and analytics dashboards that give care home operators the insights they need to optimise their operations and improve resident outcomes.

👀 We think you’ll be a great fit if…

• You have 4+ years of hands-on software engineering experience with strong TypeScript skills and full-stack development across modern web technologies.
• You're product-minded. You think about user outcomes, not just technical solutions. You can translate business requirements into elegant technical solutions.
• You write code that others love to work with - clean, tested, and maintainable. You believe in continuous improvement and leave code cleaner than you found it.
• You're obsessed with AI and actively experiment with LLMs, coding assistants (Claude Code, Cursor, Windsurf, …), and AI-driven productivity improvements. You understand both the potential and limitations of current AI tools.
• You thrive with autonomy but love collaborating. You can drive projects independently while contributing meaningfully to team discussions and code reviews.
• You ship fast and iterate. You prefer "good enough today" over "perfect next week" and optimise for learning speed over prediction accuracy.
• You're genuinely curious about eldercare and motivated by our mission to transform how families find and access care.
• You're eager to learn and stay current with technology trends, especially in AI and web development.

Sound like you but not quite 100%? Apply anyway - we're looking for potential and passion, not perfect CV match!

💔 This role isn’t for you if…

• Our mission to elevate later life care doesn’t resonate with you.
• You prefer working in isolation rather than as part of a collaborative, fast-paced team.
• You're uncomfortable with ambiguity or prefer detailed specifications over problem-solving from first principles.
• You've embraced AI tools in your development workflow or aren't curious about AI's potential.
• You prioritize perfect architecture over shipping working software to users.
• You're looking for a role where you can specialise in a specific area (ex: pure backend or pure frontend)

Interview Process

1. Screening interview led by Lottie’s Talent Acquisition Lead
2. First round interview led by the CTPO
3. Technical assessment interview with Engineers
4. Behavioral interview with Hiring Manager
5. Final interview with Will Donnelly (Lottie’s Co-Founder & CEO)

🤩 Candidate Experience: All candidates will be informed of their application status.

• Pre-Screen & Post-Screen: You'll receive an email notification, but no specific feedback will be provided at this stage.
• Hiring Manager Interview: If you are unsuccessful after this interview, you will receive constructive feedback via email.
• Case Study: If you are not successful after the case study, you'll receive constructive feedback via email and be offered a debrief call with our Talent Lead.
• Final Interview: For final-stage candidates who are not offered the role, we will provide your 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 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 £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 & 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 three core products and services, including:

• 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 their enquiries, occupancy and finances.

• Seniorcare by Lottie (B2B Vertical SaaS) - Employee benefit helping companies deliver outstanding eldercare support to their employees.

🤩 Why Lottie?

• Career Opportunity - A career-defining opportunity to lead and shape the future of our flagship marketplace and tackle complex challenges across the stack!

• Early Hire Benefits - Be an early hire at one of the UK’s fastest growing startups and benefit from fast career progression, as well as a generous stock options package.

• 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.

• Investors - Series A backed startup having raised £25m+ from tier 1 venture capital investors including Accel and General Catalyst.

• Global Opportunity & 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.

• People - Join a kind, talented and mission driven team that loves coming to work every day.

• Culture - Excellent employee compensation/benefits, hybrid office policy and outstanding company culture with a 5/5 employee review score on Glassdoor.

• Award Winning - Acclaimed winner of LinkedIn’s 2024 “Top Startups” and named the UK’s number one startup for 2025 in Startup.co.uk 100 Index.

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 [e-mail]

Compensation Range: £75K - £95K