Senior Software Engineer (Flutter)

  • JOB TYPE: Freelance Position (no agencies/C2C – see notes below)
  • LOCATION: Remote – Australia – Work anytime
  • RATE: Our client is looking to pay $30 – $50/hr
  • ESTIMATED DURATION: 40hr/week 


is the only network that gives in-demand talent all the freedom of freelance with all the benefits, community, and stability of a full-time role.

As the first decentralized talent network, our revolutionary Web3 model ensures the community that relies on Braintrust to find work are the same people who own and build it through the blockchain token, BTRST.

So unlike other marketplaces that take 20% to 50% of talent earnings, Braintrust allows talent to keep 100% of earnings and to vote on key changes to improve the network.

Braintrust is working to change the way freelance works – for good.

We’ve onboarded some of the world’s most reputable brands and now we need a Senior Software Engineer (Flutter) for one of our clients.



The Ideal Mobile Engineer

  • You’ve done this before or worked on something very similar.

    Our client can’t take a lot of risk on this senior role so the expectation is high, but so is the reward.

    (They will be more flexible on future engineering hires, so keep an eye out for those roles if you feel they are better suited)
  • You have several years in senior engineering roles at other startups, with hands-on experience in building frontend and backend scalable software solutions, and you’re still happy to work on the tools yourself.

  • You have experience leading and taking ownership of complex development projects, with the ability to break down requirements, accurately forecast timelines, and execute on deliverables.

  • You possess an intricate understanding of data structures, design patterns, UX/UI fundamentals, debugging and troubleshooting.

  • You convey strong leadership skills with the confidence to speak your mind, and an excellent ability to articulate your thoughts and opinions with the wider team.

  • +5 years of engineering experience.

What are we looking for?

Our client’s priority is to find the right fit Senior Software Engineer (Mobile) to join their product engineering team.

There is room for growth and progression into a leadership position here.

The plan is to eventually double the size of their team to enhance their existing product and build out a whole new suite of tech products for the travel & tourism industry, with multiple engineers reporting directly to this new hire (keep an eye out for those roles too!).

Join us and design your future

They are after passionate individuals who pride themselves in upholding a high level of engineering excellence.

You are an advocate for delivering clean and highly scalable code, coupled with a desire to work in the start-up scene and create a positive impact on the world.

Expectations – Your contribution

To sum it up in one sentence, you’re one of the best Flutter engineers in the world or are striving to become one of the best.

You also love to travel!

  • You take the initiative and don’t need to be managed.

    You strive when you run free with your initiatives and can motivate a team to deliver in that same direction
  • You can communicate very well, involve non-techies in major decisions, simplify concepts to real-life applications, focus on what really matters and help the business make trade-offs as it grows
  • You work closely with your product and design teams to define and implement technical solutions for Vacaay’s next-generation web & mobile applications with a core focus on exceptional user experience
  • You ensure best practices for frontend and backend development, documentation, and project management and help determine the best solutions for complex problems
  • You take an ambitious approach to prioritizing, building, and scaling new feature sets while ensuring stability, security and flexibility of our entire framework
  • You coordinate cross-functionally to ensure projects meet business objectives and timelines
  • You mentor and support other engineers, bring your ideas to the table and help the wider team operate as efficiently and effectively as possible
  • You write the best code possible.

    Clean, high-quality, high-performance, and maintainable.

Apply Now!


Qualified candidates will be invited to do a screening interview with the Braintrust staff.

We will answer your questions about the project, and our platform.

 If we determine it is the right fit for both parties, we’ll invite you to join the platform and create a profile to apply directly for this project.


C2C Candidates: This role is not available to C2C candidates working with an agency.

But if you are a professional contractor who has created an LLC/corp around your consulting practice, this is well aligned with Braintrust and we’d welcome your application.


Braintrust values the multitude of talents and perspectives that a diverse workforce brings.

All qualified applicants will receive consideration for employment without regard to race, national origin, religion, age, color, sex, sexual orientation, gender identity, disability, or protected veteran status.