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- Tasks: Design and build secure, scalable backend services using Node.js and PostgreSQL.
- Company: Join a pioneering fintech startup with a focus on innovation and growth.
- Benefits: Competitive salary, flexible work environment, and opportunities for professional development.
- Why this job: Take ownership of production systems and shape the future of fintech technology.
- Qualifications: Strong experience in Node.js and PostgreSQL, with a passion for tech leadership.
- Other info: Dynamic early-stage environment with potential for significant career advancement.
The predicted salary is between 36000 - 60000 £ per year.
We’re looking for a Founding Engineer to help build and scale the core platform of a regulated fintech product. This is a high‑trust, high‑impact role for someone who enjoys ownership, understands production systems, and wants to grow with the company.
You’ll work closely with the CTO to design, build, and operate a secure, scalable API‑driven backend. From day one, you’ll have real responsibility for production systems and technical direction, with the opportunity to shape architecture, standards, and future hires as the company grows. This role will evolve significantly over time— from hands‑on delivery today to broader technical leadership as the team expands.
Responsibilities- Design, build, and maintain backend services using Node.js
- Develop and maintain API‑first systems
- Work with PostgreSQL, including schema design, migrations, and performance tuning
- Own production systems: monitoring, incident response, root‑cause analysis
- Debug live issues calmly and methodically
- Implement secure authentication and authorization patterns
- Contribute to CI/CD using GitHub and GitHub Actions
- Work within a regulated/compliance‑aware environment (fintech, financial services, or similar)
- Collaborate on architecture decisions and technical roadmap
- Improve engineering standards, documentation, and processes as the company scales
- Strong commercial experience with Node.js backend development
- Solid experience with PostgreSQL
- Proven experience building and maintaining production APIs
- Comfortable working with GitHub and GitHub Actions for CI/CD
- Experience supporting live systems and resolving production incidents
- Understanding of security, data protection, and operational risk
- Experience in fintech or other regulated environments (ideal but not strictly required)
- Someone we can trust with production
- Comfortable taking ownership rather than waiting for direction
- Able to balance speed with correctness in a regulated context
- Interested in growing into a senior or lead role over time
- Happy working in an early‑stage environment where priorities evolve
- Experience in financial services, payments, or investment platforms
- Cloud infrastructure (GCP, AWS, or similar)
- Authentication flows, KYC/AML, or compliance‑driven systems
Back End Developer in London employer: Mekion Consulting
Contact Detail:
Mekion Consulting Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Back End Developer in London
✨Tip Number 1
Network like a pro! Reach out to people in the fintech space, especially those who work at companies you admire. A friendly chat can lead to insider info about job openings or even a referral.
✨Tip Number 2
Show off your skills! Create a personal project or contribute to open-source projects using Node.js and PostgreSQL. This not only sharpens your skills but also gives you something tangible to discuss during interviews.
✨Tip Number 3
Prepare for technical interviews by practising coding challenges and system design questions. We recommend using platforms that simulate real interview scenarios to get comfortable with the pressure.
✨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, we love seeing candidates who are proactive about their job search.
We think you need these skills to ace Back End Developer in London
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience with Node.js and PostgreSQL. We want to see how your skills align with the responsibilities of building and maintaining backend services, so don’t hold back on showcasing relevant projects!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Tell us why you’re excited about this role and how you can contribute to our fintech product. Share any experiences that demonstrate your ownership and ability to work in a regulated environment.
Showcase Problem-Solving Skills: In your application, mention specific instances where you've debugged live issues or improved production systems. We love candidates who can calmly tackle challenges and provide solutions, especially in high-pressure situations.
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 don’t miss out on any important updates from our team. Plus, we love seeing applications come in through our own platform!
How to prepare for a job interview at Mekion Consulting
✨Know Your Tech Stack Inside Out
Make sure you’re well-versed in Node.js and PostgreSQL. Brush up on your knowledge of API design and production systems, as these will be crucial topics during the interview. Be ready to discuss your past experiences with these technologies and how you've tackled challenges.
✨Showcase Your Problem-Solving Skills
Prepare to share specific examples of how you've debugged live issues or handled production incidents. Companies love candidates who can stay calm under pressure, so highlight your methodical approach to problem-solving and any tools you used to monitor and respond to incidents.
✨Understand the Fintech Landscape
Even if you don’t have direct experience in fintech, do some research on the industry’s regulations and compliance requirements. Being able to speak knowledgeably about security, data protection, and operational risk will show that you’re serious about the role and understand its importance.
✨Demonstrate Ownership and Leadership Potential
Since this role involves a lot of responsibility, be prepared to discuss times when you took ownership of a project or led a team. Talk about how you balance speed with correctness, especially in a regulated environment, and express your interest in growing into a senior or lead role.