Full Stack Developer

Flexton Inc
Atlanta, GA, United States
3 days ago
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Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Experience level
Expert
Experience required
5 years minimum
Working hours
Regular working hours
Job source

Tech stack

Flutter Web Interfaces Java (Programming Language) JavaScript (Programming Language) Application Programming Interfaces (APIs) Artificial Intelligence Amazon Web Services Amazon Cloudfront Amazon S3 Apple IOS Automation of Tests Cloud Computing
+36 more
Cloud Engineering Code Generation Code Review Continuous Integration Amazon DynamoDB Fault Tolerance Python (Programming Language) Node.Js Performance Tuning Rapid Prototyping Process Software Engineering Software Systems Web Applications AWS Cdk ReactJS Large Language Models Multi-Agent Systems Prompt Engineering Spring-boot Generative AI Backend Cloudformation Infrastructure Automation Frameworks Information Technology Deployment Automation Dart Front End Software Development Functional Programming Cloud Optimization Cloudwatch Api Gateway Restful APIs Amazon Simple Queue Service (SQS) Multiplatform Serverless Computing Microservices

Job description

We are seeking a skilled Senior Software Engineer to contribute to the full-stack design, development, and delivery of software solutions within a high-velocity engineering team. This role blends deep engineering excellence with a modern AI-first mindset including the ability to rapidly prototype using GenAI platforms to accelerate team output and, * Design and deliver cloud-native, microservices-based solutions on AWS, applying microservices principles across the full stack frontend, backend, and cloud infrastructure to build scalable, secure, and highly available systems, leveraging a broad and growing set of services including but not limited to:

  • Compute: Lambda, Step Functions
  • API, Auth & CDN: API Gateway, Cognito, CloudFront
  • Messaging & Events: SQS, SNS, EventBridge, Kinesis
  • Data: DynamoDB, S3, Aurora Serverless, OpenSearch, Kinesis Firehose
  • Configuration: SSM Parameter Store
  • Observability: CloudWatch, X-Ray
  • IaC: CDK, SAM, CloudFormation
  • And more across the broader AWS ecosystem
  • Build and maintain scalable REST APIs using API Gateway and Lambda
  • Support cloud cost optimization, security posture, and performance tuning efforts
  • Implement CI/CD pipelines, infrastructure-as-code (AWS CDK/SAM), and blue/green deployment strategies
  • Ensure production readiness through observability, automated testing, and monitoring

Full-Stack, Microservices & Cross-Platform Development

  • Design, develop, test, and deploy full-stack applications and microservices across Flutter/Dart (mobile & cross-platform), React/JavaScript (web), and Python/Node.js/Java/Spring Boot (backend)
  • Build responsive, performant web interfaces using React and JavaScript, ensuring seamless user experiences across devices
  • Develop robust backend services and RESTful APIs using Java/Spring Boot, Python, and Node.js following microservices design principles
  • Create and maintain cross-platform mobile and web applications using Flutter/Dart, delivering consistent experiences across iOS, Android, and web
  • Apply microservices best practices including service decomposition, independent deployability, and fault tolerance across the full stack

AI-Assisted Engineering & Rapid Prototyping

  • Rapidly prototype new product concepts using GenAI and LLM platforms
  • Apply AI-assisted development tools to accelerate code generation, testing, documentation, and code review
  • Evaluate AI-generated outputs for correctness, security, and production readiness
  • Follow team-level standards and best practices for AI tool adoption
  • Contribute to ideate prototype validate ship cycles within fast-moving engineering teams

Collaboration & Mentorship

  • Participate in code reviews and contribute to engineering best practices
  • Support and mentor mid-level and junior engineers on design, cloud practices, and AI tool usage
  • Promote a culture of quality, continuous improvement, and learning

Requirements

5+ years of professional software engineering experience; Bachelor’s degree in Computer Science or Engineering, or 7+ years of equivalent experience

Strong full-stack proficiency across mobile/cross-platform (Flutter/Dart), web (React/JavaScript), and backend (Python, Node.js, Java/Spring Boot)

Hands-on AWS experience across a broad range of services including but not limited to Lambda, API Gateway, DynamoDB, Kinesis, OpenSearch, S3, Firehose, EventBridge, and SSM

Experience with CI/CD, infrastructure-as-code, and serverless deployment patterns

Demonstrated use of AI/GenAI tools in a professional development setting; understanding of prompt engineering, context management, and AI tool limitations

  • Familiarity with AWS CDK or SAM for infrastructure provisioning is a plus

  • Exposure to agentic AI workflows and multi-agent systems is a plus

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Good distractions

Talks and stories from around this role — technically off-topic, practically not.

1:06 min

Differentiating between Flutter packages and plugins

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2:32 min

Introduction and history of the Dart language

Christoph Menzel Christoph Menzel · World Congress 2022

1:52 min

Structuring and scaling the backend engineering team

Stefan Lingler Stefan Lingler +1 · Coffee With Developers

3:03 min

Expanding skills naturally toward full stack software development

Eleanor Rumsey · LIVE

2:02 min

Dart's history and evolution alongside the Flutter framework

Christoph Christoph · World Congress 2024

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Introduction to Flutter and cross-platform UI development

Sylvia Dieckmann · LIVE

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