Senior Full Stack Developer (Flutter/Go)

About the Position

We are looking for a Senior Full Stack Developer (Flutter/Go) to join our client, a product telecommunications company that is a transit provider of voice and SMS traffic, as well as several lines of business. The company brings stable income while maintaining the lightness and flexibility of a startup. Our clients are large international companies and corporations that use the SMS platform to develop and improve their own business.

Responsibilities

• Design and develop high-quality Flutter apps for Android and iOS
• Collaborate with backend engineers to define APIs and build full-stack features
• Write clean, testable, maintainable Dart code following best practices
• Implement custom Flutter plugins to bridge native functionality when needed
• Integrate with real-time communication tools (e.g., WebRTC, sockets)
• Work with product managers and designers to deliver smooth, performant UX
• Debug, profile, and optimize performance across devices
• Participate in code reviews, architectural discussions, and agile development cycles

Requirements

• 3+ years of experience with Flutter and Dart
• 5+ years of experience in software development
• Full Stack development experience, especially with 2+ years of experience with Go, React, or Node.js
• Strong understanding of mobile architecture and cross-platform development
• Solid experience consuming RESTful or GraphQL APIs
• Experience with state management solutions (e.g., BLoC / Cubit, Provider, Riverpod)

Nice to Have

• Experience building or maintaining Flutter plugins (Android/iOS interop)
• Familiarity with WebRTC, signaling, and real-time streaming protocols
• Experience with Firebase, WebSockets, push notifications
• Familiarity with clean architecture and test-driven development

We Offer

Social package and other bonuses:

• Flexible working hours
• Medical insurance after TP
• Educational events & courses compensation
• English classes with a native speaker
• Dynamic corporate life
• Minimal bureaucracy, quick decisions
• The ability to influence any process, regardless of position in the company
• The company promotes growth and encourages initiatives
• Established processes following the business strategy
• A modern stack of technologies, the opportunity to work at a high load, modern equipment, a modern office, with constant improvements at the request of employees
• The opportunity to work both on existing projects and to develop new projects of various sizes
• Top management, open to communication with teams
• There is an accountant who keeps the employees’ accounts
• Full social package with English language courses and speaking club, compensation for various professional courses, trainings and conferences

Vacation and sick leave:

• 20 work days
• Sick leave is not fixed

Stages of Selection:

• HR prescreen + English check (30 min)
• Technical interview with Tech Lead and Senior Mobile Engineer (1 hour)
• Technical Interview with CTO (40 min)

Location

Europe

Job Format

Remote

Vacancy Level

Senior

Language

English: Upper Intermediate

Company

Product Back End

Flutter

Go

Mobile Apps

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