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For Companies At a Glance
- Tasks: Own and evolve backend systems, ensuring reliability and scalability.
- Company: Join Mia Wealth, a pioneering fintech transforming children's gifting into long-term wealth.
- Benefits: Enjoy unlimited leave, equity, remote work, and a birthday bonus day off.
- Why this job: Make a real impact on the next generation of investors while tackling meaningful tech challenges.
- Qualifications: Strong backend experience with Node.js, TypeScript, and PostgreSQL; fintech background preferred.
- Other info: Be part of a small, ambitious team with excellent career growth opportunities.
The predicted salary is between 75000 - 75000 £ per year.
Location: UK (Remote - only within the UK)
Stage: Early-stage fintech
Salary: up to £75,000
About Mia Wealth
Mia Wealth is the UK's next generation family wealth and gifting app for children. It makes it easy for parents, grandparents, family and friends to buy investments for children’s birthdays etc ie turning gifts into long-term wealth instead of more toys. No one is owning the junior investment market - until now - and by doing so we capture the next generation of lifelong investors. We’re a small but ambitious team, on a mission to improve the lives of millions of children across the UK.
You won’t just join a system - you’ll help define it.
The Opportunity
This is a high-ownership role for someone who enjoys building systems properly and seeing them operate in the real world. You’ll own the backend platform end-to-end - from API design and infrastructure to fintech integrations, operational tooling and production systems - and play a key role in shaping how the product evolves. This role goes beyond building features. You’ll also be responsible for creating the internal tools and capabilities that allow the business to operate effectively, including:
- Rapid issue resolution
- Operational workflows
- Compliance processes
- Data analysis and reporting
What You’ll Be Doing:
Platform & Backend
- Own and evolve the backend API (Node.js / TypeScript / Postgres)
- Design scalable, secure, and reliable API-first systems
- Build and operate production-grade APIs at scale
- Work with PostgreSQL (schema design, migrations, performance tuning)
Production & Operational Ownership
- Own backend operational support, including:
- Triaging and resolving P1 issues
- Diagnosing problems across systems
- Advising Customer Support on issue handling and customer communication
- Improve observability, reliability and performance
- Ensure fast, structured response to production incidents
Fintech Integrations
- Integrate with providers such as:
- Open banking & payments (TrueLayer, Stripe, Yapily)
- Investment platforms (e.g. Seccl)
- KYC providers (e.g. VouchSafe)
- Subscription tooling (e.g. RevenueCat)
- Handle webhooks, reconciliation flows and provider edge cases
- Ensure data consistency across systems
Operational Tooling & Automation
- Build internal tools to enable:
- Operational efficiency
- Compliance workflows
- Reporting and data visibility
- Bring a mindset of automation and appropriate use of AI to improve processes and reduce manual effort
Cloud & Infrastructure
- Own and evolve cloud infrastructure (GCP preferred):
- Cloud Run, API Gateway, Load Balancer, Cloud Armor, VPC
- Cloud SQL (Postgres with private networking)
- Contribute to CI/CD pipelines (GitHub Actions)
- Support infrastructure as code and scalable environments
Security & Compliance
- Implement secure authentication & authorisation (JWT, OAuth, MFA)
- Ensure secure handling of sensitive data (PII, financial data)
- Build systems aligned with FCA and GDPR requirements
- Support auditability, data integrity and penetration testing standards (CREST)
Product & Collaboration
- Work closely with product, mobile and operations teams
- Translate business requirements into technical solutions
- Identify risks, dependencies and trade-offs early
- Contribute ideas on how technology can improve and scale the business
What We’re Looking For:
Must Have
- Strong backend experience (Node.js / TypeScript)
- Experience with PostgreSQL in production environments
- Experience building and operating production APIs at scale
- Hands-on experience with cloud infrastructure (GCP, AWS or similar)
- Strong experience integrating payment systems (TrueLayer, Stripe, Yapily or similar)
- Solid understanding of:
- REST API design
- Authentication (JWT, OAuth)
- Webhooks and event-driven systems
- Strong debugging skills across distributed systems
- Experience working in fintech or regulated environments
- Start up mind set (being start up ready)
Highly Desirable
- Startup or early-stage experience
- Experience with KYC / identity verification systems
- Familiarity with investment platforms
- Experience with cloud networking (VPC, private IP)
- Experience with CI/CD and infrastructure as code
- Experience working alongside mobile apps (iOS, Android)
Nice to Have
- Exposure to FCA / GDPR environments
- Experience with analytics, tracking or A/B testing frameworks
What Success Looks Like:
- You’ve taken ownership of the backend and improved system reliability
- Operational issues are resolved quickly and effectively
- Customer Support is well-informed and supported on technical issues
- Systems are secure, scalable and compliant by design
- The platform is ready to support growth without rework
How You Work (This Matters as Much as Your Skills):
- Fully accountable - you take ownership end-to-end
- Responsive - you understand the impact of operating a live product
- Proactive - you identify and solve problems before being asked
- Solution-focused - you don’t just highlight issues, you fix them
- Clear communicator - able to work effectively with non-technical teams
- Commercially aware - you balance what’s ideal with what’s achievable
- Impact-driven - you think about customers, not just code
Why Join:
- Real ownership from day one
- Meaningful technical challenges in a high-trust environment
- Direct impact on product, architecture and business outcomes
What’s on offer (additional benefits):
- Unlimited annual leave
- Generous Equity
- Remote & flexible working
- Pension contribution
- Life Insurance
- Performance related bonus
- A bonus day off for your birthday
- True ownership and impact
- Parental benefits
- Career progression
Back End Developer in England employer: Mekion Consulting
Contact Detail:
Mekion Consulting Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Back End Developer in England
✨Tip Number 1
Network like a pro! Reach out to folks 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 that showcases your backend expertise. This not only builds your portfolio but also gives you something tangible to discuss during interviews.
✨Tip Number 3
Prepare for technical interviews by brushing up on your Node.js and PostgreSQL skills. Practice coding challenges and system design questions to ensure you're ready to impress when it counts.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to get noticed by our team. Plus, we love seeing candidates who are genuinely interested in joining us at Mia Wealth.
We think you need these skills to ace Back End Developer in England
Some tips for your application 🫡
Show Your Passion: When writing your application, let your enthusiasm for fintech and backend development shine through. We want to see that you’re not just looking for a job, but that you’re genuinely excited about the opportunity to shape our platform and make a difference.
Tailor Your Experience: Make sure to highlight your relevant experience with Node.js, TypeScript, and PostgreSQL. We’re keen on seeing how your background aligns with our needs, so don’t be shy about showcasing your skills and past projects that relate to the role.
Be Clear and Concise: Keep your application straightforward and to the point. We appreciate clarity, so avoid jargon and focus on communicating your ideas effectively. This will help us understand your thought process and how you approach problem-solving.
Apply Through Our Website: We encourage you to submit your application directly through our website. It’s the best way for us to receive your details and ensures you’re considered for the role. Plus, it shows you’re proactive and ready to take the next step!
How to prepare for a job interview at Mekion Consulting
✨Know Your Tech Stack
Make sure you’re well-versed in Node.js, TypeScript, and PostgreSQL. Brush up on your API design skills and be ready to discuss how you've built and operated production APIs at scale. This is crucial for demonstrating your technical expertise.
✨Showcase Your Problem-Solving Skills
Prepare examples of how you've triaged and resolved operational issues in the past. Highlight your debugging skills across distributed systems and how you’ve improved system reliability. Companies love candidates who can think on their feet!
✨Understand Fintech Regulations
Familiarise yourself with FCA and GDPR requirements, as well as secure handling of sensitive data. Be ready to discuss how you’ve implemented security measures like JWT and OAuth in previous roles. This shows you’re not just a coder but also aware of compliance.
✨Communicate Clearly
Practice explaining complex technical concepts in simple terms. You’ll need to work closely with non-technical teams, so being a clear communicator is key. Prepare to demonstrate how you’ve collaborated effectively in cross-functional teams.