At a Glance
- Tasks: Lead the development of innovative fintech solutions and shape the future of cross-border finance.
- Company: Join SYSTM, a VC-backed fintech startup revolutionising financial technology.
- Benefits: Significant equity stake, competitive salary, and the chance to influence company culture.
- Other info: Dynamic startup environment with opportunities for personal and professional growth.
- Why this job: Be at the forefront of fintech innovation with direct impact on global finance.
- Qualifications: 5+ years in full-stack development with expertise in React/TypeScript and Node.js or Python.
The predicted salary is between 80000 - 100000 £ per year.
Company Description: SYSTM - VC-backed fintech building the stablecoin financial OS.
As the most critical hire of 2026, you will own the technical architecture of a platform revolutionizing cross-border finance. Working directly with a founder from Plutus, you will build the infrastructure for stablecoin payments and an AI‑powered Agentic CFO layer, transitioning the product from early design partners to global scale.
Location: London, UK
Why this role is remarkable:
- Significant equity stake (1–5%) in a pre‑seed startup founded by Jasper Tay, the former Co‑Founder & COO of Plutus with a decade of regulated fintech experience.
- You will be the primary technical leader, making all build‑vs‑buy decisions and shaping the engineering culture from the ground floor as the company closes its funding round.
- Direct exposure to the cutting edge of finance, integrating Stellar and USDC with autonomous AI agents to automate treasury management for 25+ signed design partners.
What you will do:
- Architect and build multi‑currency wallets, stablecoin on/off ramps, and yield optimization infrastructure using Stellar and USDC rails.
- Develop the Agentic CFO layer, implementing LLM‑powered financial intelligence with autonomous action capabilities and observable AI pipelines.
- Lead the development of a high‑performance React/TypeScript merchant dashboard and robust Node.js/Python backend services that meet high compliance standards.
The ideal candidate:
- 5+ years of full‑stack experience with React/TypeScript and Node.js or Python, demonstrating high senior‑level ownership of complex product architectures.
- Proven track record shipping production‑grade AI/LLM features, including agentic workflows, RAG pipelines, or prompt engineering at scale.
- Entrepreneurial background as an early engineer or CTO, ideally with domain expertise in fintech, payments, or blockchain infrastructure like Stellar.
Senior Full-Stack Engineer (+ Equity) at SYSTM employer: Jack & Jill/External Ats
SYSTM is an exceptional employer for Senior Full-Stack Engineers, offering a unique opportunity to shape the future of cross-border finance in a dynamic and innovative environment. With significant equity stakes and direct involvement in cutting-edge fintech projects, employees benefit from a collaborative work culture that fosters creativity and growth. Located in London, SYSTM provides access to a vibrant tech scene, ensuring that team members are at the forefront of financial technology advancements while enjoying ample opportunities for professional development.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Full-Stack Engineer (+ Equity) at SYSTM
✨Tip Number 1
Network like a pro! Reach out to folks in the fintech space, especially those who have worked with stablecoins or AI. A personal connection can often get your foot in the door faster than any application.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your past projects, especially those involving React, TypeScript, or Node.js. This is your chance to demonstrate your technical prowess and make a lasting impression.
✨Tip Number 3
Prepare for the interview by diving deep into SYSTM's mission and tech stack. Understand how you can contribute to their vision of revolutionising cross-border finance and be ready to discuss your ideas on it.
✨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 being part of the SYSTM team.
We think you need these skills to ace Senior Full-Stack Engineer (+ Equity) at SYSTM
Some tips for your application 🫡
Tailor Your CV:Make sure your CV reflects the skills and experiences that align with the Senior Full-Stack Engineer role. Highlight your full-stack experience, especially with React/TypeScript and Node.js or Python, to show us you’re the right fit!
Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Share your passion for fintech and how your background makes you the perfect candidate to help us revolutionise cross-border finance. Don’t forget to mention any relevant projects or achievements!
Showcase Your Projects:If you've worked on any cool projects, especially those involving AI or blockchain, make sure to include them in your application. We love seeing real-world applications of your skills, so don’t hold back!
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!
How to prepare for a job interview at Jack & Jill/External Ats
✨Know Your Tech Inside Out
Make sure you’re well-versed in the tech stack mentioned in the job description, especially React, TypeScript, Node.js, and Python. Brush up on your knowledge of multi-currency wallets and stablecoin infrastructure, as these will likely come up during technical discussions.
✨Showcase Your Leadership Skills
As a senior role, they’ll want to see your ability to lead and make decisions. Prepare examples from your past experiences where you’ve taken ownership of projects or shaped engineering culture. Highlight any entrepreneurial ventures or leadership roles you've had in fintech.
✨Prepare for AI and Fintech Questions
Given the focus on AI-powered features and fintech, be ready to discuss your experience with AI/LLM features and how they can be applied in finance. Think about specific projects where you’ve implemented these technologies and be prepared to explain your thought process.
✨Ask Insightful Questions
Interviews are a two-way street! Prepare thoughtful questions about their vision for the platform, the challenges they face, and how you can contribute. This shows your genuine interest in the role and helps you assess if it’s the right fit for you.
