Contract Typescript Developer Jobs in Ohio (NOW HIRING)

The Senior Software Engineer is responsible for designing, developing, and maintaining scalable software applications, APIs, and enterprise systems that support business objectives. This role serves as a technical leader within the engineering team, helping drive architecture decisions, engineering best practices, secure development, production reliability, and mentorship of junior and mid-level engineers.

This position requires strong full-stack engineering experience, with emphasis on modern .NET APIs, Angular-based web applications, SQL Server-backed systems, secure service integrations, and maintainable enterprise software.

• Design, develop, test, and deploy scalable software applications, services, and APIs.
• Build and maintain ASP.NET Core REST APIs that orchestrate downstream enterprise services, SQL Server databases, and internal or third-party integrations.
• Develop and support Angular/TypeScript web applications using modern frontend patterns, reusable components, routing, forms, and service-based API integration.
• Lead technical design discussions and contribute to architecture decisions across frontend, backend, data access, and integration layers.
• Write clean, efficient, secure, and maintainable code following established engineering standards and design patterns.
• Collaborate with product managers, architects, QA, business stakeholders, and other engineering teams to define requirements and deliver solutions.
• Review code, provide technical guidance, and mentor junior and mid-level engineers.
• Troubleshoot and resolve complex defects, integration issues, performance problems, and production incidents.
• Implement resilient service integration patterns, including retry strategies, timeout handling, structured error handling, and graceful downstream failure handling.
• Maintain secure authentication and authorization flows using OAuth/OIDC, JWT claims, role/permission checks, and secure configuration practices.
• Contribute to CI/CD pipelines, automated testing, deployment readiness, and DevOps practices.
• Support production reliability through structured logging, correlation IDs, metrics, distributed tracing, and other observability practices.
• Document technical designs, processes, API contracts, and system architecture.

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or related field, or equivalent professional experience.
• 6+ years of professional software development experience.
• Strong proficiency in C#, ASP.NET Core, and RESTful API development.
• Strong proficiency with TypeScript and Angular, including RxJS, routing, forms, component design, and service-based API integration.
• Experience designing and maintaining layered application architectures, including services, repositories, domain models, and data access layers.
• Experience building APIs that consume and orchestrate multiple downstream services.
• Experience with SQL Server, including stored procedures, parameterized queries, and performance-conscious data access.
• Strong understanding of object-oriented programming, design patterns, dependency injection, and maintainable software architecture.
• Experience with secure application development, including OAuth/OIDC, JWT authentication, claims-based authorization, and secure configuration practices.
• Experience writing automated unit and integration tests for backend and frontend applications.
• Experience with Git, CI/CD tools, build pipelines, and DevOps practices.
• Excellent analytical, troubleshooting, communication, and collaboration skills.

Preferred Qualifications

• Experience with observability practices such as structured logging, correlation IDs, metrics, and distributed tracing.
• Experience designing resilient service integrations, including retry strategies, timeout handling, and graceful downstream failure handling.
• Familiarity with OpenAPI/Swagger documentation and API versioning practices.
• Experience building reusable frontend components or working within an enterprise design system.
• Experience with Docker, Kubernetes, cloud-hosted applications, or containerized deployment models.
• Experience modernizing legacy .NET applications or supporting systems across multiple .NET versions.
• Experience working in insurance, financial services, healthcare, or another regulated industry.
• Experience maintaining API and frontend contracts across multiple related applications.
• Experience leading technical projects, mentoring engineers, and improving team engineering practices.

The expected salary range for this role is USD $100,200.00 - USD $125,000.00 Yr. 

Please note that the salary information shown above is a general guideline only. Salaries are based upon a wide range of factors considered in making the compensation decision, including, but not limited to, candidate skills, experience, education and training, the scope and responsibilities of the role, as well as market and business considerations.