Senior Fullstack Engineer (Flutter/Node.js) - Mobile Experience

KplerLondon, CanadaPosted 16h agoonsite

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.
As a Senior Flutter Engineer you will strengthen the delivery capacity of the Mobile Experience crew within Kpler’s Application Platform tribe. The role centers on delivering high-performance, critical features for the MarineTraffic and Kpler mobile applications—serving millions of users—using Flutter and Dart. This large-scale environment requires a sharp focus on performance across the entire stack while upholding Clean Architecture standards.

You will join a pioneering squad at the forefront of AI-assisted engineering, where 100% of the code deployed is authored by AI under your orchestration. This is a highly modern environment designed for engineers who want to redefine software delivery by leveraging advanced AI tools to achieve unparalleled quality and velocity.

Working within a close-knit multidisciplinary squad (2 Senior Engineers, 1 Mid-level Engineer, 1 EM, 1 PM, 1 Designer), you will lead mobile feature development and may also contribute to the evolution of our Node.js/TypeScript Backend-for-Frontend (BFF) as a secondary component to support the mobile experience. They will also help business teams become autonomous over their own functional scopes, acting as a key enabler of the crew’s platformisation strategy.
Key Responsbilities

Develop complex, production-ready features for the MarineTraffic and Kpler mobile apps, upholding and protecting the team’s Clean Architecture standards.

Participate in code reviews as a quality guardian, providing constructive feedback that elevates team standards.

Collaboratively design and evolve the mobile Backend-for-Frontend (BFF) using Node.js, TypeScript and GraphQL, ensuring the crew’s agility and reducing external dependencies.

Adopt and continuously improve engineering practices: CI/CD pipelines, GitOps, linters, Sonar, and peer review workflows.

Maintain and improve automated test suites (Unit, Integration, Contract) to uphold software quality.

Mentor peers within the squad and contribute to the Front-end Chapter to harmonise practices between Web and Mobile teams.

Support business teams in becoming autonomous over their functional scopes within the mobile apps, as part of the crew’s platformisation strategy.

Contribute to architectural discussions and incremental improvement initiatives with pragmatism and a collaborative mindset.

Maintain and optimize the LLM and AI integration stack (e.g., Cursor, Claude Code) to ensure the configuration and evolution of tools enabling agents to write code autonomously with a high degree of quality, adhering to all team standards (rules, commands, and architecture).

Requirements

Essential:

Solid hands-on experience building and shipping complex Flutter & Dart applications in production environments.

Familiarity with NodeJS/TS, and GraphQL API design.

Deep interest in Clean Architecture principles applied to mobile development.

Strong culture of Clean Code and a natural drive to write well-tested, maintainable software.

Bachelor’s degree in Computer Science, Software Engineering, or equivalent practical experience – no specific degree required; demonstrable expertise is prioritised.

Professional-level English (written and spoken) is required.

Desirable:

Experience working in a platform engineering or inner-source context.

Experience working with GQL federation

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 build together 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. By applying, I confirm that I have read and accept the Staff Privacy Notice

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Skills

Engineering Application Platform

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