Find a job 
Featured Companies 
Featured Universities 
For Companies At a Glance
- Tasks: Design and build scalable backend systems for a high-traffic consumer platform.
- Company: Join a high-growth AI company with millions of global users.
- Benefits: Enjoy fully remote work, competitive salary, and impactful projects.
- Other info: Work on exciting projects, including adult-oriented content, in a collaborative team.
- Why this job: Make a real difference in a fast-paced, innovative environment.
- Qualifications: 5+ years of backend engineering experience and strong communication skills.
The predicted salary is between 60000 - 80000 £ per year.
We are working with a high-growth AI company building a widely used consumer platform with millions of users globally. This is a product-focused environment where engineering decisions have direct impact at scale. The team operates at pace, with a strong emphasis on ownership, performance, and continuous iteration.
We are seeking Senior Backend focused Full Stack Engineers to join a fully remote, cross-functional team working on high-traffic, production-grade systems. You will be responsible for building and scaling core backend services, contributing to product development, and collaborating closely with Product, Design, and AI teams.
Key Responsibilities- Design, build, and maintain scalable backend systems
- Work on high-traffic applications used by a global user base
- Contribute to architecture and performance optimisation
- Collaborate with cross-functional teams including Product, Design, and DevOps
- Take ownership of features from concept through to deployment
- 5+ years of backend engineering experience
- Strong experience working on scalable, production-level systems
- Background in high-traffic B2C or SaaS environments
- Comfortable working in a fast-paced, startup environment
- Strong communication skills and ability to work independently
The primary stack is Ruby on Rails. However, we are open to candidates with strong experience in: Python (Django / FastAPI), Node.js, Go, Elixir. The focus is on strong backend engineering fundamentals rather than a specific language.
Preferred Experience- Experience scaling systems to large user bases
- Familiarity with monolithic architecture and performance optimisation
- Experience working in cross-functional teams
- Proactive approach with strong ownership and problem-solving ability
- Experience using AI tools (such as ChatGPT, Copilot) in development workflows
This role involves working on a product that includes adult-oriented (NSFW) content, delivered in a professional and regulated environment. Candidates must be fully comfortable working in this context as part of their day-to-day responsibilities.
Not Suitable For- Candidates with experience limited to small or internal systems
- Candidates from highly structured or heavily regulated environments who may struggle in a fast-paced setting
- Candidates who are not comfortable working with adult-oriented content
- Fully remote working within Europe
- High-impact role in a growing AI company
- Opportunity to work on large-scale systems with real users
- Collaborative and fast-moving engineering environment
Senior Full Stack Engineer - Remote in City of London employer: Birchwell Associates Ltd
Contact Detail:
Birchwell Associates Ltd Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Full Stack Engineer - Remote in City of London
✨Tip Number 1
Network like a pro! Reach out to your connections in the tech industry, especially those who work in AI or full stack roles. A personal recommendation can make all the difference when you're applying for that Senior Full Stack Engineer position.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your best projects, especially those involving scalable systems or high-traffic applications. This is your chance to demonstrate your backend engineering prowess and how you can contribute to our product-focused environment.
✨Tip Number 3
Prepare for the interview by brushing up on your technical knowledge and problem-solving skills. Be ready to discuss your experience with Ruby on Rails or any other relevant tech stack. We want to see how you think and approach challenges!
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our fast-paced, collaborative team.
We think you need these skills to ace Senior Full Stack Engineer - Remote in City of London
Some tips for your application 🫡
Show Off Your Experience: Make sure to highlight your 5+ years of backend engineering experience. We want to see how you've tackled scalable, production-level systems in high-traffic environments. Don’t hold back on the details!
Tailor Your Application: Take a moment to customise your application for this role. Mention your familiarity with Ruby on Rails or any other relevant tech stack. We love seeing how your skills align with our needs!
Be Yourself: We value strong communication skills and a proactive approach. Let your personality shine through in your application! Share examples of how you’ve taken ownership of projects and solved problems.
Apply Through Our Website: Don’t forget to apply through our website! It’s the best way for us to receive your application and get to know you better. We can’t wait to see what you bring to the table!
How to prepare for a job interview at Birchwell Associates Ltd
✨Know Your Tech Stack Inside Out
Make sure you’re well-versed in Ruby on Rails, but don’t forget about your experience with Python, Node.js, Go, or Elixir. Brush up on the fundamentals of backend engineering and be ready to discuss how you've scaled systems in high-traffic environments.
✨Showcase Your Problem-Solving Skills
Prepare examples that highlight your proactive approach to problem-solving. Think of specific challenges you’ve faced in previous roles and how you took ownership to resolve them, especially in fast-paced settings.
✨Emphasise Collaboration
Since this role involves working closely with Product, Design, and AI teams, be ready to discuss your experience in cross-functional teams. Share how you’ve effectively communicated and collaborated to deliver successful projects.
✨Be Comfortable with the Content
This position involves adult-oriented content, so it’s crucial to express your comfort level with this aspect during the interview. Be honest about your stance and ensure you convey professionalism in handling such topics.