Senior Software Engineer – Flutter

  • Anywhere


Are you a Flutter Developer looking to make a significant impact in the world of web3 technology? Catalyst, a critical project within the Cardano ecosystem, is seeking a skilled Flutter Engineer to join our innovative team. This is a unique opportunity to work on cutting-edge applications in a rapidly evolving space. As a Flutter Engineer at Catalyst, you’ll have the chance to develop cross-platform applications crucial in bringing decentralized solutions to a global audience. You’ll work alongside a team of experts in web3 technology, contributing directly to projects that aim to make a tangible difference in how digital transactions and interactions are conducted. 

At Catalyst, we value creativity, collaboration, and a commitment to excellence. If you’re ready to push boundaries and contribute to the future of decentralized applications, we invite you to apply and help shape the next wave of blockchain innovation. Join us at Catalyst and participate in Cardano’s mission to create a more secure, transparent, and fair digital world.


  • Follow agile software development practices
  • Work with teams across multiple time zones
  • Work independently on software development tasks
  • Be proactive and require minimal supervision or mentoring to complete tasks
  • Review specifications produced by architects and formal methods specialists
  • Contribute to the design of algorithms
  • Write clean, straightforward, efficient code that satisfies previously agreed acceptance criteria and specifications
  • Commit often and submit small pull requests frequently
  • Cover your code with unit, property, and integration tests when applicable
  • Review the pull requests of your teammates
  • Fix bugs in your code and legacy code from others
  • Be available for emergency fixing of severity issues on deployed products
  • Integrate software components and third-party libraries
  • Verify and deploy programs and systems
  • Troubleshoot, debug, and upgrade existing software
  • Write documentation for the code
  • Write technical user manuals
  • Be knowledgeable of distributed and concurrent computation
  • Be knowledgeable of the basics of cryptography is a plus


Key Competencies 

  1. Write idiomatic code that satisfies the acceptance criteria of a given task
  2. Write tests (unit tests, property tests) that provide sufficient and non-superfluous efficient code coverage.
  3. Document code and APIs concisely and unambiguously
  4. Break down tasks into sub-tasks that are completable in a short amount of time and report completion as required by managers
  5. Pragmatically adhere to software engineering principles (modularity, incremental development, no premature optimization, no feature creep, no speculative generality, etc.)

Specialist Skills

  • At least two years of commercial experience in Flutter development using Dart
  • Good knowledge of one of the following languages: Swift, Kotlin, Java, Objective-C, or JS/TS.
  • Solid understanding of the best mobile and web development practices and architecture: SOLID, MVVM, State Management, Offline, etc.
  • Experienced with developing user-facing UX/UI app flows
  • Experienced in delivering a mobile application to the Apple App Store or Google Play Store
  • Contributions to open-source Dart/Flutter projects that you can share are a plus

Education / Experience

  • At least five years of professional experience in fronted and/or mobile app development and/or Web like Flutter, iOS, Android, Rect, or Vue.
  • High sense of responsibility to run software on a scale
  • Strong passion for top-notch software development and delivery
  • Practical experience with Agile software development methods
  • Knowledge of functional and object-oriented programming paradigms
  • Experience working with Git and CI/CD
  • A degree in Computer Science is desirable but not essential 


  • Flexible schedule
  • Remote work
  • Laptop reimbursement
  • New starter package to buy hardware essentials (headphones, monitor, etc)
  • Learning & Development opportunities
  • Competitive PTO 
  • Medical Benefits


At IOG, we value diversity and always treat all employees and job applicants based on merit, qualifications, competence, and talent. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.