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Contract Flutter Developer Jobs (NOW HIRING)

De Circle

Reins - Fullstack Engineer

San Francisco, CA · On-site +1

... contracts, full-stack, backend, and product/frontend. Infrastructure/devops is not a current ... Ability to collaborate on frontend/product work is a plus (Dart/Flutter experience beneficial)

Calance US

Smartwatch/Mobile Developer

Torrance, CA

$62.96/hr

We are hiring Smartwatch/Mobile Developer for a Contract position in Torrance, CA CALL US NOW for ... DESIRED SKILLS: Experience with hybrid frameworks (React Native, Flutter, AngularJS, NodeJS)

Kikoff

Staff Quality Engineer

San Francisco, CA

$84.80K - $109.60K/yr

... and developer tooling - you don't gatekeep releases. This role reports to the Foundational ... Assess quality gaps across backend (Ruby on Rails), web (SolidJS), and mobile (Flutter/Dart)

Anduril Industries

Senior Loads Engineer, Omen

Costa Mesa, CA

$107.80K - $146.40K/yr

Omen is the first tail-sitter aircraft with a mass-production contract, with an order of 50 systems ... Conduct flutter analysis to inform vehicle design and ensure flight safety * Generate flight loads ...

Aescape Inc

Senior Frontend Engineer

New York, NY · On-site

$134K - $184.30K/yr

You will have the opportunity to own the full member-facing product surface - from our Flutter ... contract through to user-facing state. * Enforce best practices in code quality, testing, and ...

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How much do contract flutter developer jobs pay per hour?

As of May 31, 2026, the average hourly pay for contract flutter developer in the United States is $52.64, according to ZipRecruiter salary data. Most workers in this role earn between $42.31 and $60.58 per hour, depending on experience, location, and employer.

What is a Contract Flutter Developer job?

A Contract Flutter Developer is a software developer who specializes in building cross-platform mobile applications using Flutter on a contractual or freelance basis. They typically work with businesses or clients for a fixed duration or project, developing, optimizing, and maintaining Flutter apps. Contract developers are responsible for implementing UI/UX designs, integrating APIs, debugging issues, and ensuring app performance. This role offers flexibility, allowing developers to work remotely or on-site, depending on the contract terms.

What are the key skills and qualifications needed to thrive in the Contract Flutter Developer position, and why are they important?

To thrive as a Contract Flutter Developer, you need advanced programming skills in Dart and Flutter, as well as experience developing, testing, and deploying cross-platform mobile applications. Familiarity with version control systems like Git, CI/CD pipelines, and a working knowledge of third-party APIs and state management solutions are typically required, while certifications in mobile development or app frameworks can be a plus. Strong communication, problem-solving abilities, and the capacity to work independently and collaboratively are key soft skills. These skills allow developers to efficiently deliver high-quality, scalable apps that meet client needs in dynamic contract settings.

What are the typical daily responsibilities of a Contract Flutter Developer?

As a Contract Flutter Developer, your daily tasks often include building and refining user interfaces, writing and maintaining clean code in Dart, integrating APIs, and troubleshooting application issues across Android and iOS platforms. You’ll often participate in virtual stand-up meetings, work closely with project managers and designers, and be responsible for managing your own workflow to meet agreed deadlines. Regular code reviews and collaboration via tools like GitHub or Bitbucket are also standard practices. This role requires adaptability and proactive communication, as you may work with remote teams and juggle multiple projects simultaneously.
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What are the most commonly searched types of Flutter Developer jobs? The most popular types of Flutter Developer jobs are:
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Contract Flutter Developer jobs near you
Infographic showing various Contract Flutter Developer job openings in the United States as of May 2026, with employment types broken down into 77% Full Time, 1% Temporary, and 22% Contract. Highlights an 5% Physical, 93% Hybrid, and 2% Remote job distribution, with an average salary of $109,490 per year, or $52.6 per hour.

Reins - Fullstack Engineer

De Circle

San Francisco, CA • On-site, Remote

Full-time

Posted 23 days ago

Job description

Reins is building an enterprise stablecoin account that looks and feels like a first-class business bank account, while giving companies the benefits of stablecoin rails and self-custody. Reins makes stablecoins operationally simple for businesses, providing familiar banking features such as ACH, wires (and global equivalents like SEPA), cards, multi-level permissions, approvals, and AML/compliance workflows-combined with stablecoin-native advantages like instant 24/7 global settlement, better control via self-custody, and access to lending, insurance, and exchange markets as DeFi infrastructure matures.
Role Overview
You'll work directly with founder and CEO Sebastian Delgado (co-founder of Fei Labs), taking ownership of meaningful chunks of backend, full-stack, and security work. The role is flexible:
  • Full-stack engineer (preferred)
  • Backend engineer
  • Product/frontend contributor (optional)

Focus areas are prioritized as follows: security & smart contracts, full-stack, backend, and product/frontend. Infrastructure/devops is not a current priority.
Backend & Integrations
  • Design and build backend services connecting custody, fiat rails, policies, and operational workflows
  • Implement and maintain APIs and services for ACH, wires, cards, permissions, AML/compliance workflows, and reporting
Smart Contracts & Security
  • Implement and review Solidity smart contracts, focusing on correctness, safety, and upgradeability
  • Contribute to threat modeling, security reviews, and audit/vendor management

Product & Full-Stack Work
  • Collaborate on the design and implementation of customer-facing applications (currently Dart/Flutter)
  • Translate user and operational needs into product and UX decisions, especially around permissions, approvals, and money flows

Security & Audit Participation
  • Own parts of audit/security review processes for your areas of the stack
  • Coordinate with external security firms
  • Build internal systems and processes with a security-first mindset appropriate for handling customer funds

  • Strong background as a backend or full-stack engineer, ideally in early-stage fintech (Plaid, Brex, Ramp, modern neobanks)
  • Experience with crypto infrastructure, wallets, or stablecoin projects
  • Proficiency in Solidity smart contracts or a willingness to contribute to security-critical logic
  • Familiarity with APIs, integrations, and operational workflows (ACH, wires, cards, permissions, AML/compliance)
  • Ability to collaborate on frontend/product work is a plus (Dart/Flutter experience beneficial)
  • Strong understanding of security best practices for handling customer funds
  • Excellent problem-solving, attention to detail, and autonomy in early-stage environments

Preferred Backgrounds
  • Early engineers at crypto infra/wallet/stablecoin companies
  • Strong backend/full-stack engineers from top fintechs who are crypto-native

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