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Api Developer Jobs in Delaware (NOW HIRING)

IS3 Solutions

.NET Developer

Wilmington, DE · On-site

$46.75 - $61.75/hr

NET Developer to design, build, and maintain enterprise-grade web applications for the banking ... NET backend development, including API design and service development. • Working knowledge of ...

Donato Technologies, Inc

Java FSD with AWS

Wilmington, DE · On-site

$49.50 - $64/hr

Java, Rest API & Microservices, AWS Wilmington DE Experience: 8+ Years Java FSD with AWS An FSD ... back-end developer role Design and developer application using Core Java Design and developer ...

Codebridge

Senior Ruby on Rails Developer

Dover, DE · On-site

$80 - $120/hr

We are looking for talented and experienced Senior Ruby on Rails Developer to develop web ... Proficiency in building REST API services * Demonstrated experience with Git and release/branching ...

Siri InfoSolutions Inc

Java Azure developer

New Castle, DE · On-site

$49.50 - $64/hr

... API, -ReactJS, JSF, -Native Azure Cloud development technologies, & Azure DevOps Roles & Responsibilities- -Develop technical designs for application development -Design, implement and maintain Java ...

Prophecy Technologies

Java Developer

Wilmington, DE · On-site

$49.50 - $64/hr

Lambda * API Gateway * ECS/EKS * CloudFormation * IAM * RDS * DynamoDB * CloudWatch * SNS/SQS ... Bachelor's degree in Computer Science, Engineering, or a related field. * 6+ years of professional ...

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Api Developer information

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How much do api developer jobs pay per hour?

As of Aug 22, 2026, the average hourly pay for api developer in Delaware is $59.94, according to ZipRecruiter salary data. Most workers in this role earn between $54.62 and $67.36 per hour, depending on experience, location, and employer.

What does an API developer do?

An API Developer is responsible for designing, building, and maintaining application programming interfaces (APIs) that enable software applications to communicate with each other. They ensure APIs are secure, scalable, and efficient, often working with technologies like REST, GraphQL, and SOAP. API Developers collaborate with front-end and back-end teams to integrate systems and improve functionality. Their role also involves debugging, optimizing performance, and documenting API usage.

What are the key skills and qualifications needed to thrive as an API developer?

To thrive as an API Developer, you need strong programming skills in languages like JavaScript, Python, or Java, as well as a solid understanding of RESTful and SOAP API protocols. Proficiency with tools such as Postman, Swagger, and familiarity with API security, cloud platforms, and relevant certifications (like AWS Certified Developer) are commonly required. Excellent problem-solving abilities, attention to detail, and clear communication skills help you collaborate effectively and navigate complex development challenges. These capabilities are crucial for building reliable, scalable APIs that enable seamless integration between diverse systems and deliver value to users and teams.

What does a typical workday look like for an API developer?

A typical workday for an API Developer involves designing, coding, and testing APIs to ensure they meet business requirements and function optimally. You’ll frequently troubleshoot integration issues, review code for security and performance, and collaborate closely with front-end, back-end, and product teams to address evolving project needs. Daily tasks may include updating API documentation, participating in agile sprint meetings, and responding to technical support queries from other developers or partners. The work environment is often dynamic and collaborative, with a strong emphasis on continuous learning and adapting to new technologies.

Are API developers in demand?

API developers are in high demand due to the increasing reliance on web services and integrations across industries. Skills in REST, SOAP, and cloud platforms like AWS or Azure enhance job prospects, and demand is expected to grow as digital transformation accelerates.

How much does an API developer make?

An API developer's salary varies based on experience, location, and skills, but typically ranges from $70,000 to $130,000 annually. Senior developers with expertise in RESTful APIs, security, and cloud platforms can earn higher salaries, especially in competitive markets.

Is an API developer a good career?

An API developer is a valuable role in software development, focusing on designing and maintaining application programming interfaces that enable different software systems to communicate. The role often requires knowledge of programming languages, API protocols, and tools like REST or GraphQL, and offers opportunities for growth in technology companies and development teams. It can be a stable and well-paying career path with demand driven by digital integration needs.

What are the most commonly searched types of Api Developer jobs in Delaware?

The most popular types of Api Developer jobs in Delaware are:

What are popular job titles related to Api Developer jobs in Delaware?

For Api Developer jobs in Delaware, the most frequently searched job titles are:

What job categories do people searching Api Developer jobs in Delaware look for?

The top searched job categories for Api Developer jobs in Delaware are:

What cities in Delaware are hiring for Api Developer jobs?

Cities in Delaware with the most Api Developer job openings:

What are popular job titles related to Api Developer jobs in DE?

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Api Developer jobs near you
Infographic showing various Api Developer job openings in Delaware as of August 2026, with employment types broken down into 80% Full Time, 6% Part Time, and 14% Contract. Highlights an 83% Physical, 5% Hybrid, and 12% Remote job distribution, with an average salary of $124,674 per year, or $59.9 per hour.

.NET Developer

IS3 Solutions

Wilmington, DE • On-site

$46.75 - $61.75/hr

Full-time

Re-posted 11 days ago

Job description

Job Summary:
IS3 Solutions is seeking an experienced .NET Developer to design, build, and maintain enterprise-grade web applications for the banking industry. The ideal candidate will have strong backend development expertise in .NET and a solid understanding of AngularJS front-end architecture, enabling effective collaboration across the full stack.
Responsibilities:
• Design, develop, and maintain robust backend services, APIs, and system integrations using .NET frameworks.
• Support and contribute to AngularJS-based front-end applications, ensuring alignment between front-end and backend layers.
• Develop and implement secure authentication and authorization mechanisms across web applications and APIs.
• Design and maintain secure API endpoints in compliance with security best practices and banking industry standards.
• Collaborate with cross-functional teams to gather requirements and deliver scalable, maintainable solutions.
• Monitor and optimize application performance against established KPIs and service-level objectives.
Qualifications:
Required:
• Strong hands-on experience with .NET backend development, including API design and service development.
• Working knowledge of AngularJS front-end architecture and its integration with backend services.
• Deep understanding of authentication and identity technologies such as OAuth, SAML, OpenID Connect, and JWT.
• Demonstrated experience securing applications, APIs, and endpoints in enterprise environments.
• Strong knowledge of application security best practices and secure coding standards.
• Experience working in performance-driven environments with measurable KPIs.
• Excellent problem-solving and communication skills.
Preferred:
• Prior experience within banking, financial services, or other highly regulated industries.
• Experience supporting applications with elevated security and compliance requirements.
• Familiarity with enterprise-scale architectures and system integrations.
Company:
IS3 Solutions is an IT company that provides data centers, cloud, cyber security, IT infrastructure, and IT financing solutions. Founded in 2010, the company is headquartered in Shrewsbury, USA, with a team of 51-200 employees. The company is currently Growth Stage.

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