Developer - Hyphen Solutions

OpenTalent; United States; On-site; USD 90,000 - 130,000; Full time

Job summary

OpenTalent is seeking a mobile and backend engineer to design, develop, and test new features across web and mobile apps, using Flutter and Dart, C#, ASP.NET MVC, and AWS. You will help translate UI/UX designs into responsive interfaces and contribute to API development.

You will build serverless backends with AWS Lambda, API Gateway, S3; manage CI/CD for mobile builds; collaborate with QA, Product Management, and Customer Care to deliver high-quality solutions.

Qualifications

• 3+ years of professional mobile development experience with Flutter and Dart.
• Proven experience building and deploying serverless applications on AWS, especially Lambda.
• Working knowledge of AWS services such as API Gateway, DynamoDB, S3, IAM, and CloudWatch.
• Strong understanding of state management patterns in Flutter (Provider, Riverpod, Bloc).
• Experience integrating REST APIs and handling asynchronous data flows.
• Experience developing applications using C#, ASP.NET, MVC, and SQL Server.

Responsibilities

• Design, develop, and maintain cross-platform mobile applications using Flutter and Dart.
• Build and integrate serverless backend services using services like AWS Lambda, API Gateway, and S3.
• Collaborate with product owner to translate UI/UX designs into responsive, pixel-accurate interfaces.
• Consume and integrate RESTful APIs and handle offline-first and caching scenarios.
• Implement authentication and authorization flows (e.g., OAuth/OIDC).
• Write clean, testable, well-documented code and participate in code reviews.
• Optimize application performance, responsiveness, and memory usage across devices.
• Manage app store releases and CI/CD pipelines for mobile builds.
• Troubleshoot, debug, and resolve production issues across the mobile and serverless stack.
• Stay current with Flutter, Dart, and AWS best practices and bring improvements to the team.

Skills

Flutter

Dart

REST APIs

AWS services

Education

Bachelor’s or Associate degree in Computer Science or related field

Tools

C#

ASP.NET MVC

SQL Server

AWS Lambda

API Gateway

DynamoDB

S3

IAM

CloudWatch

Flutter

Job description

Build Your Future with Hyphen While Our Clients Build Homes with Your Support.

We Build a Trusted Homebuilder Network, Unifying the Construction Supply Chain.

GENERAL DESCRIPTION:

Designs, develops, and tests new features and enhancements across web and mobile applications, contributing to technical design decisions and architecture. Utilizes technologies such as C#, ASP.NET MVC, Flutter, Web API, SQL Server, and AWS services to deliver scalable, high-quality solutions.

Collaborates with QA, Product Management, and Customer Care teams to support and enhance existing applications, troubleshoot issues, and implement effective solutions. Plays an active role in API development and integration, with a strong emphasis on leveraging AWS-based services and architectures.

ESSENTIAL DUTIES AND RESPONSIBILITIES:

• Design, develop, and maintain cross-platform mobile applications using Flutter and Dart.
• Build and integrate serverless backend services using services like AWS Lambda, API Gateway, and S3.
• Collaborate with product owner to translate UI/UX designs into responsive, pixel-accurate interfaces.
• Consume and integrate RESTful APIs and handle offline-first and caching scenarios.
• Implement authentication and authorization flows (e.g., OAuth/OIDC).
• Write clean, testable, well-documented code and participate in code reviews.
• Optimize application performance, responsiveness, and memory usage across devices.
• Manage app store releases and CI/CD pipelines for mobile builds.
• Troubleshoot, debug, and resolve production issues across the mobile and serverless stack.
• Stay current with Flutter, Dart, and AWS best practices and bring improvements to the team.

QUALIFICATIONS:

To perform this job successfully, an individual must be able to satisfactorily perform each of the essential duties described above. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

• Bachelor’s or Associate degree in Computer Science, Information Systems, or related field (or equivalent work experience).
• 3+ years of professional mobile development experience, with hands-on Flutter and Dart expertise.
• Proven experience building and deploying serverless applications on AWS, especially Lambda.
• Working knowledge of AWS services such as API Gateway, DynamoDB, S3, IAM, and CloudWatch.
• Strong understanding of state management patterns in Flutter (e.g., Provider, Riverpod, Bloc).
• Experience integrating REST APIs and handling asynchronous data flows.
• Experience developing applications using C#, ASP.NET, MVC, and SQL Server.