Senior Flutter Engineer for AI‑Powered Mobile Platform

Jackalope Digital LLC; Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Job summary

Kpler is seeking a Senior Flutter Engineer to strengthen the Mobile Experience crew within our Application Platform tribe. You will deliver high-performance features for the MarineTraffic and Kpler mobile apps, serving millions of users, with Flutter and Dart in a large-scale environment.

You will work in a multidisciplinary squad and mentor peers, contribute to the evolution of our Node.js/TypeScript Backend-for-Frontend, and help teams become autonomous as part of the platformisation strategy.

Qualifications

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

Responsibilities

• 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.

Skills

Flutter

Dart

NodeJS/TS

GraphQL

Clean Architecture

Clean Code

English proficiency

Education

Bachelor’s degree in Computer Science or Software Engineering

Tools

NodeJS/TS

GraphQL

Job description

Kpler is seeking a Senior Flutter Engineer to strengthen the Mobile Experience crew within our Application Platform tribe. You will deliver high-performance features for the MarineTraffic and Kpler mobile apps, serving millions of users, with Flutter and Dart in a large-scale environment.

You will work in a multidisciplinary squad and mentor peers, contribute to the evolution of our Node.js/TypeScript Backend-for-Frontend, and help teams become autonomous as part of the platformisation strategy.