At a Glance
- Tasks: Build cutting-edge AI systems and architect scalable healthcare solutions.
- Company: Join a high-growth tech company revolutionising healthcare with AI.
- Benefits: Competitive salary, fully remote work, and opportunities for professional growth.
- Other info: Dynamic startup environment with excellent career advancement potential.
- Why this job: Make a real impact in healthcare by developing innovative AI technologies.
- Qualifications: 7+ years in software engineering with strong Python and ML/AI skills.
This is a role that TechTree is recruiting for on behalf of one of its clients. TechTree is an AI-driven recruitment platform working with high-growth companies. When you apply, TechTree's AI Agent matches you not just to this role, but to other relevant opportunities across its network, so one application can unlock multiple roles.
Location: Europe / EMEA
Work model: Fully remote
Employment: Full-time
Level: Principal / Staff
Estimated compensation: €100,000–€200,000
Industry: Healthcare AI
The opportunity:
- Build complex, production-grade AI agent systems from 0 to 1
- Architect distributed systems for enterprise healthcare environments
- Work across LLMs, agent orchestration, tool calling, multi-turn routing, and MCP integrations
- Own system architecture, scalability, and reliability
- Stay deeply hands-on while providing technical guidance to other engineers
What we're looking for:
- 7+ years building complex production systems
- Recent hands-on experience as a Staff, Principal, Senior ML/AI, or Senior Software Engineer
- Proven from 0 to 1 startup engineering experience
- Strong Python and ML/AI engineering background
- Shipped experience with AI agents, tool calling, agent harnesses, or multi-turn systems
- Strong systems thinking and distributed-systems experience
- High agency and comfort operating in ambiguous early-stage environments
- Based in Europe / EMEA
Strong advantages:
- Healthcare or clinical systems experience
- HIPAA, audit trails, or regulated-data environments
- Deep Data Science / Machine Learning background
- Advanced agent infrastructure, MCP, routing, and prompt-management experience
- Previous experience at high-growth AI-native startups
- Strong Math, Physics, Computer Science, ML, or related academic background
If this sounds like a fit, we'd love to hear from you. Apply today!
Principal/Staff Software Engineer in London employer: Cross Border Talents
Cross Boundary Talents is an exceptional employer that values diversity and offers a vibrant work culture in the beautiful setting of Greece. With a strong focus on employee growth, we provide comprehensive training and support, ensuring our team members thrive in their roles while enjoying a competitive salary and attractive relocation benefits. Join us to be part of a dynamic team dedicated to delivering outstanding customer service in a multilingual environment.
StudySmarter Expert Advice🤫
We think this is how you could land Principal/Staff Software Engineer in London
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Cross Border Talents or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Cross Border Talents.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Cross Border Talents.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Cross Border Talents that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Principal/Staff Software Engineer in London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Cross Border Talents.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Cross Border Talents and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Cross Border Talents
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Cross Border Talents uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
