At a Glance
- Tasks: Build and scale AI systems to revolutionise clinical trials and improve patient recruitment.
- Company: Delfa, a fast-growing tech company transforming healthcare with AI.
- Benefits: Competitive salary, equity, health insurance, gym membership, and generous holiday.
- Other info: Join a talented team in a dynamic London office with great growth opportunities.
- Why this job: Make a real impact on life-saving treatments while working with cutting-edge technology.
- Qualifications: 3+ years of full-stack engineering experience and a passion for solving complex problems.
The predicted salary is between 100000 - 120000 £ per year.
About Delfa
Billions of people still suffer from everyday diseases. One key reason? Clinical trials are broken. Despite $120 billion spent each year, most trials are delayed due to bottlenecks like patient recruitment. Delfa is fixing this with autonomous AI agents. We’re building AI agents to automate clinical trials, starting with patient recruitment. Just three months in and already we’re:
- Live on 30+ trials across multiple conditions
- Mid-six-figure revenue and rising
- 300% MoM product growth
- Oversubscribed $3.8m seed from tier-one AI investors
We’re moving fast, and our biggest constraint is technical capacity. That’s where you come in.
What You’ll Do
You’ll build and scale the core systems that enable Delfa's AI agents to deliver real-world clinical impact. Below are some concrete projects you might tackle:
- Designing automated monitoring systems to ensure quality of tens of thousands of voice AI calls.
- Building browser agents to automate data extraction from legacy systems.
- Laying the foundations of our data infrastructure through the creation of robust pipelines for ingesting, transforming, and serving high-quality healthcare data.
- Creating internal AI tooling to empower your teammates to self-serve and ship fast.
Our current tech stack: FastAPI · Pydantic · React · OpenAI / Gemini / Claude · Temporal · Honeycomb · Render · Azure
You’ll Be A Great Fit If…
- You have 3+ years of professional full-stack engineering experience: We’re looking for somebody comfortable with solving hard technical problems, refactoring when needed, and knowing what’s enough and what’s too much to solve a problem.
- A track record of building high-quality products fast: Delfa's got big ambitions to materially accelerate getting life-saving treatments to market. This is necessary and urgent work so we need individuals who can deliver.
- An ownership mindset: We position our team to understand customer problems, give you the autonomy to find the best path forward, and expect you to own the solutions.
- A growth mindset: We’re looking for people who take pride in their work and are always looking to improve it. If your work doesn’t matter to you, it won’t end up mattering to our customers. If you’re not growing, your impact won’t grow either.
Life at Delfa
We’re at the beginning of our journey so you’ll have an opportunity to shape not just our product, but the company itself: who we work with, and how we work together. You’ll join a talent dense team, working onsite at our London office 5 days a week:
- A wine-snob who built Roche’s first foundation models
- A debate champion who scaled a product from nothing to millions of diagnostic tests
- A medical doctor who builds voice agents from her rural clinic
- A ginger bloke who deployed production AI for J&J, Medtronic, and Exscientia
What We Offer
- £100K – 120K base salary + meaningful equity
- Private health insurance, Function Health subscription, gym membership
- 25 days’ holiday + UK public holidays
- Modern office space 5 mins from Old Street station
- True 0 → 1 ownership. You’ll take full responsibility for critical product features that get new treatments to patients, faster.
Our Hiring Process
We work to get you an offer within a week with the following lean process:
- Intro chat with Tom (CEO) - 30 mins. An informal discussion about your experiences, values, and career goals, and give you an opportunity to get a sense of the role and the team. After this call we may ask you to share some work you’re proud of.
- Technical discussion with Gustav (CTO) (45-60mins). Here we will take a deeper dive into your technical depth to really understand what you’ve built, how you build and how you solve complex problems. We are looking out for examples of products you’ve shipped and the impact you’ve made. There will also be the chance for you to ask questions.
- Technical challenge (90-120 minutes). We’ll invite you to our office to spend some time with us. We’ll give you a real-life task and ask you to work through it with us. It will be the best opportunity for you to truly see if this is the right role for you and also for us to get a great idea of how you would collaborate.
- Offer. If all the above goes well then you’ll receive an offer from us!
If helping unstick clinical trials and getting life-saving treatments to patients faster sounds like your idea of important work, let’s talk.
Software Engineer in London employer: Delfa AI
Delfa is an exceptional employer, offering a unique opportunity to work at the forefront of healthcare innovation in London. With a strong focus on employee growth and autonomy, team members are empowered to take ownership of critical projects that directly impact patient outcomes. The vibrant work culture, combined with competitive salaries, equity options, and comprehensive benefits, makes Delfa an attractive place for passionate software engineers looking to make a meaningful difference.
StudySmarter Expert Advice🤫
We think this is how you could land Software Engineer in London
✨Tip Number 1
Get to know the company inside out! Research Delfa's mission and values, and think about how your skills as a Software Engineer can help them achieve their goals. This will not only impress during interviews but also help you tailor your discussions.
✨Tip Number 2
Network like a pro! Connect with current employees on LinkedIn or attend industry events. A friendly chat can sometimes lead to referrals, which can give you a leg up in the hiring process.
✨Tip Number 3
Prepare for those technical discussions! Brush up on your coding skills and be ready to showcase your past projects. Think of specific examples where you've solved complex problems or built high-quality products quickly.
✨Tip Number 4
Don’t forget to show your personality! During interviews, let your passion for tech and problem-solving shine through. Delfa is looking for individuals with an ownership and growth mindset, so share your journey and how you’ve evolved as an engineer.
We think you need these skills to ace Software Engineer in London
Some tips for your application 🫡
Tailor Your Application:Make sure to customise your CV and cover letter for the Software Engineer role at Delfa. Highlight your experience with full-stack engineering and any relevant projects that showcase your ability to solve complex problems quickly.
Showcase Your Impact:When detailing your past work, focus on the impact you made. Use metrics and specific examples to demonstrate how your contributions led to successful outcomes. We want to see how you’ve built high-quality products fast!
Emphasise Your Ownership Mindset:Delfa values an ownership mindset, so be sure to convey your ability to take responsibility for your work. Share examples of how you've tackled challenges independently and driven solutions that matter to customers.
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for this exciting opportunity to shape the future of clinical trials!
How to prepare for a job interview at Delfa AI
✨Know Your Tech Stack
Familiarise yourself with Delfa's tech stack, including FastAPI, Pydantic, and React. Be ready to discuss how you've used similar technologies in your past projects and how you can apply them to build scalable systems for clinical trials.
✨Showcase Your Problem-Solving Skills
Prepare examples of complex problems you've solved in previous roles. Highlight your ability to refactor code and deliver high-quality products quickly, as this aligns with Delfa's urgent mission to accelerate life-saving treatments.
✨Demonstrate Ownership and Growth Mindset
Be ready to share instances where you've taken ownership of a project or feature. Discuss how you continuously seek improvement in your work, as Delfa values individuals who are proactive and committed to making an impact.
✨Engage in the Technical Challenge
During the technical challenge, focus on collaboration and communication. Show your thought process while tackling the task, and don't hesitate to ask questions. This is your chance to demonstrate how well you can work with the team and contribute to their goals.
