At a Glance
- Tasks: Build the core capabilities of SoSafe's AI platform and develop reusable infrastructure.
- Company: Join a fast-growing cybersecurity scale-up on a mission to make the digital world safer.
- Benefits: Enjoy flexible hours, 33 vacation days, and access to wellbeing support.
- Other info: Collaborative culture with opportunities for personal and professional growth.
- Why this job: Shape the future of AI engineering and make a real impact in cybersecurity.
- Qualifications: Strong experience with Node.js, TypeScript, React, and AI-powered applications.
The predicted salary is between 77850 - 95150 £ per year.
SoSafe has the ambition to become the leading human risk management provider in Europe. Our award-winning awareness platform triggers behavioural change by providing effective and engaging training and simulations on cybersecurity and data protection. Cybercrime is costing the world >$10 trillion annually and growing by 15% p.a. - we invite you to be part of the solution!
Location Requirement: This role is open to candidates currently based in and legally authorized to work in the UK, Portugal, or Ireland. We are unable to consider applicants outside these locations.
Why Us? AI is transforming how software is built. At SoSafe, you'll join the team building the AI platform that powers the next generation of AI capabilities across our products. Rather than building individual AI features, you'll create the shared infrastructure, tooling and services that enable every engineering team to build, deploy and operate AI safely and at scale. Working in a small, highly autonomous team, you'll have real ownership, shape technical direction, and build systems that engineers across SoSafe rely on every day.
Here's how you'll make a difference:
- Build the core capabilities behind SoSafe's Agentic AI Platform, including agent runtimes, model routing, tool registries and shared platform services.
- Design and build production-grade platform services and developer tooling using Node.js, TypeScript, NestJS and React.
- Develop reusable AI infrastructure that enables engineering teams to build, deploy and operate AI agents securely and at scale.
- Work hands-on with LLMs, LangChain/LangGraph and agent orchestration, solving platform challenges around governance, observability and scalability.
- Own features end-to-end—from architecture and implementation through deployment and continuous improvement.
- Shape the future of AI engineering at SoSafe by contributing ideas, improving developer experience and influencing platform architecture.
What you'll bring:
- Strong experience building modern full-stack applications with Node.js, TypeScript and React.
- Hands-on experience building AI-powered applications or platforms using LLMs, AI agents, LangChain, LangGraph, MCP or similar technologies.
- A platform mindset—you enjoy building reusable systems, APIs and tooling that help other engineers move faster.
- Confidence using AI coding tools as part of your daily workflow while applying sound engineering judgment to architecture, code quality and technical decisions.
- The ability to thrive in ambiguity, take ownership and solve complex engineering problems in a fast-moving environment.
- Experience with developer platforms, distributed systems, infrastructure-as-code, cloud-native architectures or AI governance is a strong advantage.
What we offer:
- Work/Life balance: Flexible hours, 33 vacation days
- Wellbeing and financial support: Access to Open Up, corporate discounts
- Connection & community: Virtual events, collaborative team activities, and opportunities for local meet-ups
- And the list goes on: Tech equipment, referral bonuses, dog-friendly HQ
Perks and benefits listed above are for full-time employees and may vary slightly by office location. These are just a sample — you'll learn more during the interview process.
About Us: At SoSafe, we’re on a mission to make the digital world safer by addressing the human factor in cybersecurity. As one of the fastest-growing security awareness scale-ups worldwide, we leverage behavioural science and data-driven learning to empower people against cyber threats. Our Human Risk Management approach helps organisations turn their employees into their strongest line of defence. Backed by leading VCs like Highland Europe and Global Founders Capital, we’re rapidly expanding across the globe. We’re looking for team players who want to drive meaningful change in cybersecurity, take ownership of their work, and grow with us. If you thrive in a vibrant, purpose-driven environment that values innovation, diversity, and collaboration, then this is the place for you!
Senior Fullstack Engineer- AI Platform employer: SoSafe
SoSafe is an exceptional employer that prioritises innovation and employee growth, making it an ideal place for a Staff IT Engineer. With a strong focus on building automation platforms and driving AI-native transformation, employees are encouraged to develop their skills in a supportive environment that values collaboration and mentorship. Located in a vibrant tech hub, SoSafe offers unique opportunities to work on cutting-edge projects while contributing to a mission of enhancing digital safety.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Fullstack Engineer- AI Platform
✨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 SoSafe 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 SoSafe.
✨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 SoSafe.
✨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 SoSafe 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 Senior Fullstack Engineer- AI Platform
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 SoSafe.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at SoSafe 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 SoSafe
✨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 SoSafe 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.
