Senior Fullstack Engineer (Flutter/Node.js)

Senior Fullstack Engineer (Flutter/Node.js)

Full-Time 60000 - 77000 £ / year (est.) Home office (partial)
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At a Glance

  • Tasks: Develop and ship innovative mobile applications using Flutter and Node.js.
  • Company: Join Kpler, a leading tech company transforming global trade insights.
  • Benefits: Enjoy a competitive salary, hybrid work, and opportunities for professional growth.
  • Other info: Be part of a diverse team committed to inclusivity and innovation.
  • Why this job: Make a real impact in a dynamic team while working with cutting-edge technology.
  • Qualifications: Strong experience in mobile app development and collaboration with product teams.

The predicted salary is between 60000 - 77000 £ per year.

Requirements

  • Strong experience building and shipping consumer (B2C) mobile applications at scale, serving over a million users.
  • Solid hands‑on experience shipping complex Flutter and Dart applications in production.
  • Solid experience with Node. js, Type Script, and Graph QL API design for services operating at scale.
  • Excellent knowledge of mobile architecture, performance, testing, and observability, with a strong Clean Code and Clean Architecture culture.
  • Strong understanding of Apples Human Interface Guidelines and the ability to translate them into polished, accessible user experiences.
  • Product judgement: experience contributing to product and UX decisions with PMs and designers, rather than simply implementing specifications.
  • Professional-level English (written and spoken).
  • Experience in a platform engineering or inner‑source context; Graph QL federation is desirable.
  • Geospatial experience with Mapbox and Post GIS, or exposure to Kafka, Airflow, or Geo Server is desirable.

Responsibilities

  • Develop complex, production-ready features for the Marine Traffic and Kpler apps, upholding Clean Architecture standards and translating platform conventions into polished, native‑feeling, accessible experiences.
  • Design and evolve the mobile BFF (Node. js, Type Script, Graph QL, Postgre SQL/Post GIS) as a primary, scalable component serving all mobile needs.
  • Act as a quality guardian through code reviews, automated test suites, observability, and continuously improved CI/CD and engineering practices.
  • Contribute to product and UX decisions alongside the PM and Designer, owning outcomes rather than just code.
  • Maintain and optimise the AI/LLM tooling stack so agents write code autonomously to the teams standards.
  • Mentor peers, contribute to the Front‑end Chapter, and support business teams autonomy over their functional scopes as part of the crews platformisation strategy.
  • Technologies
  • AI
  • Airflow
  • API
  • CI/CD
  • Dart
  • Flutter
  • Graph QL
  • Support
  • Kafka
  • LLM
  • Mobile
  • Postgre SQL
  • Product Manager
  • Type Script
  • UX UI Design
  • Node JS
  • Backend
  • Claude Code
  • Cursor
  • Frontend
  • LESS
  • Fullstack

More

We are Kpler, based in London, and we help our clients navigate complex markets by simplifying global trade information and providing valuable insights across commodities, energy, and maritime sectors.

Since 2014, we have delivered top‑tier intelligence through user‑friendly platforms.

Our team of over 850 experts from 69 countries works to transform complex data into actionable strategies.

This is a full‑time, hybrid Senior Mobile Engineer role in our Mobile Experience crew within the Application Platform tribe, focused on Marine Traffic and Kpler mobile apps.

You will join a close‑knit, multidisciplinary squad of Senior Engineers, a Mid‑level Engineer, an Engineering Manager, a Product Manager, and a Designer, and work in an AI‑assisted engineering environment where deployed code is authored by AI under our orchestration.

We are committed to a fair, inclusive, and diverse work environment and welcome people from different backgrounds, experiences, abilities, and perspectives.

  • last updated 36 week of 2026
  • #J-18808-Ljbffr

Senior Fullstack Engineer (Flutter/Node.js) employer: Kpler

Kpler is an exceptional employer located in the vibrant city of London, offering a dynamic work culture that fosters collaboration and innovation. Employees benefit from comprehensive growth opportunities, including professional development and the chance to work alongside talented teams across various functions. With a focus on data-driven decision-making, Kpler empowers its workforce to make impactful contributions in a fast-paced environment, making it an ideal place for those seeking meaningful and rewarding careers in the tech industry.

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Contact Details:

Kpler Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior Fullstack Engineer (Flutter/Node.js)

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 Kpler 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 Kpler.

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 Kpler.

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 Kpler 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 Senior Fullstack Engineer (Flutter/Node.js)

Flutter
Dart
Node.js
TypeScript
GraphQL API design
Mobile Architecture
Clean Code

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 Kpler.

Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Kpler 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 Kpler

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 Kpler 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.