Full Stack Engineer

Kpler; United Kingdom; Hybrid; GBP 65,000 - 90,000; Full time

Job summary

Kpler is hiring a Mid Full-Stack Engineer in the United Kingdom to build core systems and internal tools across PHP backend and React/TypeScript frontend. You will maintain billing infrastructure, including Stripe-driven processes, and deliver responsive interfaces.

You’ll collaborate with Product, Finance, CRM, and Revenue Operations, ensuring scalable, reliable software and modernising legacy code in a fast-growing, global environment.

Qualifications

• 3+ years of professional software engineering experience with strong PHP backend
• Solid SQL and relational databases
• Experience designing, building, and consuming REST APIs
• TypeScript/JavaScript, Node.js and React experience
• Git, automated testing and modern DevOps practices with Docker/Kubernetes
• BSc/MSc in CS/CE or equivalent and strong English communication skills

Responsibilities

• Architect backend services in PHP with clean domain boundaries and billing systems
• Craft responsive frontend UX with React, TypeScript, and Node.js
• Ensure production reliability with end-to-end tests, logging, retries, and error handling
• Collaborate with Product, Finance, CRM, Revenue Ops and Support teams to translate business needs into technical solutions
• Drive code quality improvements and modernization of legacy components
• Maintain system health and observability including SQL schemas and CI/CD workflows

Skills

PHP backend

SQL

REST APIs

TypeScript/JS

React

Node.js

Git

CI/CD

Docker

Kubernetes

English

Education

BSc/MSc in Computer Science or Computer Engineering

Tools

Docker

Kubernetes

Job description

At Kpler, we are dedicated to helping our clients navigate complex markets with ease. By simplifying global trade information and providing valuable insights, we empower organisations to make informed decisions in commodities, energy, and maritime sectors.

Since our founding in 2014, we have focused on delivering top-tier intelligence through user-friendly platforms. Our team of over 850 experts from 69 countries works tirelessly to transform intricate data into actionable strategies, ensuring our clients stay ahead in a dynamic market landscape. Join us to leverage cutting-edge innovation for impactful results and experience unparalleled support on your journey to success.

About the Role

As a Mid Full-Stack Engineer at Kpler, you will play a pivotal role in building and scaling the core systems and internal tools that power our product ecosystem. Working across the full software stack, you will construct resilient PHP backend services—including our Stripe-driven payments and subscription billing infrastructure—while crafting responsive, user-friendly frontend interfaces with React and TypeScript. Partnering closely with Product, Finance, Revenue Operations, and CRM teams, your work will directly optimize operational workflows and elevate the experience of our global users.

Key Responsibilities

• Architect backend services: Build and maintain high-performing backend services in PHP with clean domain boundaries, specifically managing billing and application management systems.
• Craft responsive frontend user experiences: Design and implement polished, accessible user interfaces using React, TypeScript, and Node.js.
• Ensure production reliability & test coverage: Safeguard core functionality by writing comprehensive end-to-end (E2E) automated tests and implementing robust logging, retries, and failure recovery.
• Collaborate cross-functionally: Partner with Product Owners, Business Analysts, Finance, CRM, Revenue Operations, and Support teams to translate business needs into technical solutions.
• Drive continuous improvement: Proactively challenge the status quo to elevate code quality, modernise legacy codebase components, and explore new engineering tools and frameworks.
• Maintain system health & observability: Debug and troubleshoot issues in production environments, managing relational database schemas (SQL) and Git/CI/CD workflows.

Experience & Background

What you'll need (Must-haves)

• Backend development depth: 3+ years of professional software engineering experience, with strong proficiency in backend PHP development and working with large-scale production codebases.
• Database & API design skills: Solid grasp of SQL and relational databases, alongside hands‑on experience designing, building, and consuming REST APIs and system‑to‑system integrations.
• Modern frontend stack: Practical experience with TypeScript/JavaScript, Node.js, and modern frontend frameworks such as React.
• Engineering & DevOps foundations: Familiarity with modern software development practices (Git, code reviews, automated testing) and DevOps tools like Docker and Kubernetes.
• Academic foundation & communication: BSc/MSc in Computer Science, Computer Engineering, or equivalent practical experience, paired with excellent written and spoken English.

Nice-to-haves

• Cloud infrastructure: Experience working with Amazon Web Services (AWS).
• Subscription & billing platforms: Exposure to payment gateways (e.g., Stripe) and subscription lifecycle management.
• Legacy modernization & data scale: Prior experience refactoring legacy systems or handling high-volume, data-intensive applications.

We are a dynamic company dedicated to nurturing connections and innovating solutions to tackle market challenges head‑on. If you thrive on customer satisfaction and turning ideas into reality, then you’ve found your ideal destination. Are you ready to embark on this exciting journey with us?

We make things happen

We act decisively and with purpose, going the extra mile.

We buildtogether

We foster relationships and develop creative solutions to address market challenges.

We are here to help

We are accessible and supportive to colleagues and clients with a friendly approach.

Our People Pledge

Don’t meet every single requirement? Research shows that women and people of color are less likely than others to apply if they feel like they don’t match 100% of the job requirements. Don’t let the confidence gap stand in your way, we’d love to hear from you! We understand that experience comes in many different forms and are dedicated to adding new perspectives to the team.

Kpler is committed to providing a fair, inclusive and diverse work‑environment. We believe that different perspectives lead to better ideas, and better ideas allow us to better understand the needs and interests of our diverse, global community. We welcome people of different backgrounds, experiences, abilities and perspectives and are an equal opportunity employer.

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