Staff Frontend Platform Engineer

Pleo Technologies Ltd.; Greater London; On-site; GBP 80,000 - GBP 100,000; Full time

Job summary

A fintech company is looking for a Staff Engineer to join their Web Core team in Greater London. The successful candidate will drive technical excellence in web applications, enhance developer experience, and mentor other engineers while coding extensively. This role requires solid experience with TypeScript and complex web applications, as well as a collaborative spirit to work across teams. Competitive benefits include flexible working arrangements and health insurance.

Benefits

Pleo card

Catering for lunch

Private health insurance

Additional holiday option

Wellbeing days

Mental health support

Access to LinkedIn Learning

Paid parental leave

Qualifications

• Solid experience in building and maintaining complex web applications.
• Experience with TypeScript and frontend frameworks is needed.
• Strong quality mindset and familiarity with testing practices.

Responsibilities

• Set technical direction for the web platform and drive alignment across teams.
• Identify leverage opportunities for web engineering and execute on them.
• Build and evolve internal tooling that scales across teams.
• Contribute hands-on in code along with strategic tasks.

Skills

TypeScript

Complex web applications

Frontend engineering

Testing practices

CI/CD

Observability practices

Team collaboration

Job description

Messy spend management is tricky business. And tedious processes are a lose-lose situation for all involved, not just finance. At Pleo, we're changing that. We build spend solutions that make managing money seamless, empowering, and surprisingly effective for finance teams and employees alike—with a vision to help all businesses ‘go beyond’.

The word ‘Pleo’ actually means ‘more than you’d expect’, and living by that mantra has been the secret to our success over the last 10 years.

Now, we’re at a pivotal moment in our journey; every move we make has a direct impact on our 40,000+ customers, our business, and our collective success. We need people who take pride in uncovering customer needs, who turn complex problems into simple solutions, challenge the way things are done (respectfully), and always aim high. With great ambitions driving us forward, we can’t say we’ve got this whole thing figured out. And frankly, that’s half the fun! What we can say is that we’re a driven, progressive, and, importantly, a kind bunch of 850+ people from over 100 nationalities, all committed to delivering the future of business spending, together.

We at Pleo are on a mission to make spend management surprisingly effective and empowering. We build a product used by thousands of companies across Europe, and our web app is a core part of that experience.

We’re hiring a Staff Engineer to join Web Core — our frontend platform team. The Web Core team exists to enable product engineers across Pleo to build and ship high-quality web software. We own the foundations of the web stack (tooling, patterns, architecture, reliability of the developer workflow), and we partner closely with product teams to make delivery faster, safer, and more consistent.

What Web Core does

• Build and maintain a web platform that teams use to efficiently deliver excellent web experiences.
• Drive technical excellence across Pleo’s web applications (architecture, patterns, quality, performance, accessibility).
• Improve developer experience (DX) through tooling, CI reliability, and fast feedback loops.
• Steward shared web foundations (libraries, conventions, golden paths) and support adoption.
• Facilitate and contribute to the broader frontend community at Pleo.

What you’ll be doing

As a Staff Engineer in Web Core, you will be a force multiplier. You’ll work across teams and systems to remove constraints and raise the bar for how we build and run web software.

• Set technical direction for parts of our web platform, and drive alignment across teams.
• Identify the biggest leverage opportunities for web engineering at Pleo (quality, delivery speed, reliability) and execute on them.
• Partner with product engineers and leads to design solutions that fit the wider ecosystem.
• Build and evolve internal tooling, frameworks, and golden paths that scale across teams.
• Improve the reliability and usability of our CI and local developer workflows.
• Coach and mentor engineers, and help grow technical leadership in the frontend community.
• Contribute hands‑on in code. This role blends strategy and execution. You should expect to be coding a meaningful part of the time.

You’ll bring solid experience with

• Building and maintaining complex web applications at scale.
• TypeScript and modern frontend engineering (React experience is a plus).
• Designing maintainable systems (including frontend-facing APIs and platform boundaries).
• Testing practices and tooling (unit, integration, end-to-end) and a strong quality mindset.
• CI/CD and developer productivity improvements (faster, more reliable feedback loops).
• Observability and monitoring practices for web systems (metrics, logging, tracing, alerting).
• Working effectively across teams and stakeholders, and communicating tradeoffs clearly.

Your colleagues would say you

• Lead by example and raise the bar with pragmatism and care.
• Communicate clearly, listen well, and bring people along in decisions.
• Enjoy breaking down complex problems, gathering input, and driving to a solution.
• Coach others and create space for people to grow.
• Prefer progress over perfection, while still caring deeply about quality.

Show me the benefits!

• Your own Pleo card (no more out-of-pocket spending!)
• Lunch is on us - with catering in our Lisbon, Copenhagen and London offices or a monthly lunch allowance paid directly together with your salary in other markets 🍜
• Private health insurance to ensure you’re fit in body and mind to do your best work
• Option to purchase 5 additional days of holiday
• Wellbeing days - fully paid days off designed for a pace, allowing you to take time to recharge and prioritise self-care
• We provide access to MyndUp to give our employees access to free mental health and wellbeing support with great success so far ❤️🩹
• Access to LinkedIn Learning - acquire new skills, stay abreast of industry trends and fuel your personal and professional development continuously
• Paid parental leave - we want to make sure that we're supportive of families and help you feel that you don't have to compromise your family due to work 👶

About your application

• Please submit your application in English; it’s our company language so you’ll be speaking lots of it if you join 💕
• We treat all candidates equally: If you are interested please apply through our application system - any correspondence should come from there! Our lovely support team isn't able to pass on any calls/ emails our way - and this makes sure that the candidate experience is smooth and fair to everyone 😊
• We can only achieve our goals if our team reflects the diversity of the world around us - and that starts with you, hitting apply, even if you are worried you might not tick all the boxes. We embrace and encourage people from all backgrounds to apply - regardless of race/ethnicity, colour, religion, nationality, gender, sex, sexual orientation, age, marital status, disability, neurodiversity, socio-economic status, culture or beliefs.
• When you submit an application we process your personal data as a data processor. Find out more about how your data is used in the FAQs section at bottom of our jobs page.

We’re looking for new friends, gifted minds, team players, restless talents and passionate problem solvers.

Let’s get to know each other. We want to find out more about you, your motivations, and give you more information about the role.

2

The challenge

The task is deliberately open-ended and based on something you'll actually work on. There are no right or wrong answers here.

3

The team interview

Expect to share a (virtual) meeting room with two to three people you’ll work with regularly if you get the job.

4

The final interview

A call with someone in leadership who’ll walk you through the big picture and chat about how your role will figure into that.

This is a big decision for both of us. If you join us, we’ll spend a lot of time together working on some pretty cool things. That's why we've designed a hiring process that allows everyone to make the right choice. Read more about how we hire here.