At a Glance
- Tasks: Lead the developer experience for a cutting-edge financial platform and drive API adoption.
- Company: Join a dynamic fintech startup with a mission to revolutionise cross-border payments.
- Benefits: Flexible remote work, competitive salary, and opportunities for professional growth.
- Other info: Be part of a team with alumni from top companies like Stripe and J.P. Morgan.
- Why this job: Shape the future of finance while building impactful developer experiences.
- Qualifications: 5+ years in developer-facing roles with a strong understanding of APIs and integration.
The predicted salary is between 80000 - 100000 £ per year.
Location: Miami, FL | London, UK | Remote (US)
The Problem and the Role
OpenFX is on a mission to move money as freely as data, unrestricted by time zones, banking hours, or legacy systems. We are building the infrastructure that will power the next generation of cross-border payment systems for institutions. We are seeking a Developer Experience Lead, who will report to the head of Product Growth, to own the entire developer‑facing surface of our platform, from documentation to integration support to API governance. This role fills a foundational gap in how external developers experience our world‑class financial engine.
What You’ll Actually Do & Own
- Drive API Product Adoption: You own API adoption as a measurable outcome, instrumenting the funnel from API key activation to first API call to first transaction to expanded endpoint usage.
- Architect the Documentation System: You own the information architecture and design the taxonomy that scales from a simple Quickstart guide to complex Treasury Operations references.
- Own the OpenAPI Workflow: Align the OpenAPI spec to production reality and implement a contract‑first governance model.
- Drive Developer Advocacy: Write technical content that earns developer trust and build feedback loops that turn integration friction into product changes.
- Own Integration Triage: Act as the technical front door for client integration questions during US business hours, triaging issues and building a repeatable onboarding playbook.
What Success Looks Like
- API Product Adoption: You own the adoption funnel and drive the cross‑functional work to move the number.
- Time to First API Call: Drops from around 3 days to under 15 minutes within 90 days.
- Instructional support tickets: reduced 40% within 90 days.
- Spec drift: no spec drift incidents that reach production.
- V1 Developer Portal: a public API doc portal is live, searchable, and built on docs‑as‑code infrastructure.
- Developer advocacy presence: a published cadence of technical content that builds developer trust and drives inbound adoption.
- DX roadmap: a written plan for SDK strategy, portal evolution, adoption analytics, and Agent Experience foundations.
Requirements
- 5+ years owning a developer‑facing API product or platform.
- Direct client integration work with B2B or institutional clients.
- Product instinct for API design.
- Engineering fluency.
- Contract‑first governance experience.
- Financial services or fintech context.
- Agent Experience instinct.
Preferred
- Multimedia documentation skills.
- Developer advocacy or DevRel experience.
Why This Role?
- Foundational Ownership: You define the hiring standards, the voice, and the culture of Developer Experience at OpenFX.
- Greenfield Architecture: You are building the DX product from the ground up.
- The Frontier of Finance: You will learn the inner workings of global finance and apply them to the new payment stack.
- Where This Role Grows: Lead the expansion into agent‑native tooling as Developer Experience matures.
The Team: You are joining a team of ex‑Stripe, J.P. Morgan, and Kraken alumni, backed by notable investors.
Developer Experience Lead in London employer: OpenFX
OpenFX is an exceptional employer, offering a dynamic work culture that thrives on innovation and collaboration. As a Product Manager in London, you'll be at the forefront of cross-border payment solutions, with ample opportunities for professional growth and direct impact on revenue through currency expansion. Join a high-calibre team backed by top-tier investors, where your contributions will shape the future of financial infrastructure in Europe.
StudySmarter Expert Advice🤫
We think this is how you could land Developer Experience Lead in London
✨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 OpenFX 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 OpenFX.
✨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 OpenFX.
✨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 OpenFX 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 Developer Experience Lead in London
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 OpenFX.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at OpenFX 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 OpenFX
✨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 OpenFX 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.
