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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Developer III - **Company:** Crowley Maritime Corporation - **Location:** Jacksonville, FL, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** ASP.NET, Microsoft Word, JavaScript (Programming Language), .NET Framework, Microsoft Excel, Multitier Architecture, Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Amazon S3, Software Applications, JIRA, HTML5, Business Software, Microsoft Outlook, C Sharp (Programming Language), Cascading Style Sheets (CSS), Cloud Engineering, Code Review, Information Systems, Continuous Integration, Command-Query Responsibility Segregation (Software Development), Relational Databases, Dependency Injection, Software Design Patterns, Amazon DynamoDB, Entity Framework, Github, Design of User Interfaces, Human-Computer Interaction, Identity and Access Management, Key Management, Microsoft Office, Microsoft SQL Server, MongoDB, NoSQL, Nunit, OAuth, OpenID, Open Web Application Security, Microsoft PowerPoint, Scrum Methodology, Systems Development Life Cycle, Query Optimization, Redis, E2e Testing, Swagger, Next.js, JSON Web Token, Security Assertion Markup Language (SAML), SignalR, Software Engineering, Transact-SQL, TypeScript, Management of Software Versions, Web Content Accessibility Guidelines, Web Applications, WebSocket, Web Usability, Openapi, Datadog, AWS Cdk, Data Logging, RxJS, Test-Driven Development (TDD), Angular Material, Okta, Tailwind, GitHub Copilot, ReactJS, Retrieval-Augmented Generation, Delivery Pipeline, Large Language Models, Claude Code, Cypress (Programming Language), Caching, Indexer, AI Coding Agents, Cloudformation, Moq, AngularJS, Material UI, Solid Principles, Infrastructure Automation Frameworks, Information Technology, Amazon Bedrock, Playwright, AWS Fargate, Graphql, Front End Software Development, React Redux, Cloudwatch, Api Gateway, JestJS, Restful APIs, Amazon Simple Queue Service (SQS), Terraform, Domain Driven Design, Semantic Kernel, Serverless Computing, Docker, Static Application Security Testing, Web Api, Programming Languages, Microservices - **Published:** November 13, 2026 - **Apply:** https://www.careerbuilder.com/job-details/software-developer-iii-jacksonville-fl--ac9f9ae4-8fc9-4487-a41c-cebc76b218a6 ## About the Role Software Development, Logistics, Sustainability, Continuous Improvement, Testing, Information Technology & Information Systems, Procedure Development, Internet Application, Microsoft ASP.NET (Active Server Page), User Interface/Experience (UI/UX), 8 - 10 years of software/application development experience., Bachelor's degree in computer science or a related field; or equivalent combination of post-high school education and experience equal to nine (12) years., Ability to communicate effectively verbally and in writing, including the ability to convey technical information to technical and non-technical users. Ability to establish and maintain effective working relationships with internal/external business partners. Ability to evaluate process effectiveness and develop change or alternatives. Ability to prioritize, organize and perform multiple work assignments simultaneously. Ability to function effectively with, or as part of, a team. Ability to effectively manage projects that may vary in nature and scope. Ability to identify and/or document existing and new trends, as well as evaluate and predict their impact on the organization. Ability to interface software and business applications with other systems. Ability to indirectly mentor, coach, train, and/or supervise employees. Knowledge of and ability to conduct need, trend, feasibility and performance assessments. Knowledge of applicable computer software, operating systems and standard programming languages, concepts, practices and procedures. Knowledge of and ability to design and develop various forms of software and/or applications using a variety of information technology tools and resources. Knowledge of and ability to apply the concepts, principles and practices of the Software Development Life Cycle (SDLC). ## Description * Design, build and maintain full stack web applications with Angular or React on the front end and ASP.NET Core on the back end. * Architect scalable, secure and observable systems using clean architecture, domain-driven design and SOLID principles. * Build and document REST APIs (OpenAPI), and where needed gRPC or GraphQL endpoints and event-driven integrations. * Implement authentication and authorization with Okta (OIDC, OAuth 2.0, SAML), including SSO and role- or policy-based access. * Deploy and operate services on AWS using containers or serverless, with infrastructure as code and automated CI/CD pipelines. * Write automated unit, integration and end-to-end tests, and keep quality gates in the pipeline. * Lead code reviews and code and configuration audits for accuracy, performance and security. * Monitor production with logging, metrics and tracing; troubleshoot incidents and drive root-cause fixes. * Use AI coding assistants responsibly to speed delivery and help set team standards for their safe use. * Perform need, trend, feasibility and performance assessments so business requirements are met, risks are reduced and value is maximized. * Create technical documentation, architecture decision records and user guides. * Plan and estimate SDLC phases for medium-scale projects or major components of larger ones. * Partner with product, design, QA, security and business teams to resolve software and system issues. * Coach and mentor less experienced developers., * Back end: C# 12+, .NET 8 and .NET 10 (LTS), ASP.NET Core Web API and Minimal APIs, Entity Framework Core, dependency injection, async programming, background services. * Front end: Angular 18+ (standalone components, signals, RxJS, NgRx) or React 18/19 (hooks, Server Components, Redux Toolkit or TanStack Query, Next.js); TypeScript 5.x, JavaScript (ES2023+), HTML5, CSS3/SCSS, responsive and accessible (WCAG 2.2) UI. * APIs and integration: RESTful API design, OpenAPI/Swagger, API versioning, microservices, messaging with Amazon SQS/SNS or EventBridge. * Identity and security: SSO with Okta (OIDC, OAuth 2.0, SAML), JWT, OWASP Top 10, secrets management with AWS Secrets Manager. * Data: SQL Server (T-SQL, query tuning, indexing) or another relational database; NoSQL such as Amazon DynamoDB or MongoDB; caching with Redis. * AWS cloudseeds/Fargate or EKS, Lambda, API Gateway, RDS/Aurora, S3, CloudWatch, IAM. * DevOps: GitHub (branching, pull requests), CI/CD with GitHub Actions or AWS CodePipeline, Docker, infrastructure as code with AWS CDK, CloudFormation or Terraform. * Testing: Unit or NUnit, Moq or NSubstitute, Jest or Vitest, Playwright or Cypress, test-driven development. * Architecture: Design patterns, SOLID, clean architecture, CQRS, domain-driven design. * Ways of working: Agile/Scrum, Jira or similar; Microsoft Office (Word, Outlook, PowerPoint, Excel). * AI-assisted development with tools such as GitHub Copilot or Claude Code, including prompt practices and review of generated code. * Building AI features into applications with Amazon Bedrock or other LLM APIs: retrieval-augmented generation, Semantic Kernel or Microsoft.Extensions.AI. NET Aspire for local orchestration and service defaults in cloud-native .NET apps. * Observability with Open Telemetry, AWS X-Ray, Datadog or a similar platform. * Real-time features with SignalR or WebSockets. * Micro-frontends (Module Federation) and design systems such as Angular Material, Tailwind CSS or a shared component library. * Performance work: Core Web Vitals, server-side rendering and hydration, profiling with BenchmarkDotNet. * Security tooling in the pipeline: SAST, dependency scanning (Dependabot, Snyk), container image scanning. * AWS certification, such as AWS Certified Developer - Associate or Solutions Architect - Associate.