At a Glance
- Tasks: Build innovative AI authentication software and tackle exciting engineering challenges.
- Company: Dynamic AI startup focused on revolutionising secure technology interactions.
- Benefits: Flexible hybrid work, small team culture, and significant influence on product direction.
- Other info: Join a collaborative environment where your ideas and skills truly matter.
- Why this job: Make a real impact by shaping cutting-edge AI solutions from the ground up.
- Qualifications: 5+ years in software engineering with experience in TypeScript, Node.js, and cloud-native applications.
The predicted salary is between 63000 - 77000 £ per year.
- Senior Full Stack Software Engineer | AI Startup
- London | Hybrid (2–3 days per week with flexibility)
- Our client is hiring a
Senior Software Engineer to help build the software platform behind a next-generation AI authentication product that's changing how people securely interact with technology.
The AI doesn't rely on passwords, fingerprints or facial recognition.
Instead, it learns how people naturally interact with their devices to create seamless, continuous authentication.
You'll build the production systems that make this possible.
What makes this different?
You'll solve the engineering challenges that turn cutting-edge AI into a product customers trust:
- Building scalable backend services
- Designing APIs that support AI-powered features
- Developing cloud-native systems on AWS
- Running highly available Kubernetes workloads
- Building intuitive web applications
- Making AI reliable, observable and production-ready
You'll work directly alongside AI Engineers, influencing architecture and making technical decisions from day one.
Why engineers join startups like this
Large companies have specialists for everything.
Here, you'll own problems end to end.
One week you might be designing backend services.
The next you'll improve frontend experiences.
The week after you'll be helping shape infrastructure or influencing product direction.
If you enjoy variety, ownership and solving difficult engineering problems, you'll feel at home.
You'll enjoy this role if you like
- Building products from the ground up
- Working across the full stack
- Making architectural decisions
- Seeing the direct impact of your work
- Collaborating with AI Engineers
- Solving real engineering problems rather than maintaining legacy systems
- Type Script
- Node. js
- React
- AWS
- Docker
- REST APIs
- CI/CD
We're far more interested in great engineers than someone who has used every tool on this list.
We\'d love to hear from you if you have experience with
- Building or supporting software platforms that power AI or Machine Learning products in production
- Commercial software engineering (5+ years)
- Type Script and Node. js
- Cloud-native applications
- Building production software
- Designing scalable APIs
- Modern software architecture
- What you'll get
- Hybrid working with flexibility
- A genuinely small engineering team where your voice matters
- The opportunity to shape architecture, engineering practices and product direction
- The chance to build software powering real-world AI
If you're looking for more ownership, greater technical influence and the opportunity to help build something from an early stage, we'd love to hear from you.
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Senior Full Stack Software Engineer | AI Startup employer: 55 Exec Search
Join an award-winning Cyber Security consultancy as a Resource Coordinator, where you'll thrive in a collaborative and supportive culture that values initiative and proactive problem-solving. With a competitive salary of £35,000 and hybrid working options, this role offers genuine opportunities for career progression while working closely with senior leadership and gaining exposure to diverse operational activities. Be part of a rapidly growing team that prioritises employee development and fosters a positive work environment in either London or Gloucester.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Full Stack Software Engineer | AI Startup
✨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 55 Exec Search 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 55 Exec Search.
✨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 55 Exec Search.
✨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 55 Exec Search 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 Full Stack Software Engineer | AI Startup
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 55 Exec Search.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at 55 Exec Search 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 55 Exec Search
✨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 55 Exec Search 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.
