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Api Developer Jobs in Delaware (NOW HIRING)

Delan Associates, Inc

Mulesoft Developer

Newark, DE · On-site

$49.25 - $65.25/hr

The position contributes to enterprise integration standards, API strategy, and operational ... application developers to ensure successful delivery of business solutions. * Implement and ...

Delan Associates, Inc

Mulesoft Developer

Newark, DE · On-site

$49.25 - $65.25/hr

The position contributes to enterprise integration standards, API strategy, and operational ... application developers to ensure successful delivery of business solutions. * Implement and ...

Delan Associates, Inc.

Mulesoft Developer

Newark, DE · On-site

$49.25 - $65.25/hr

The position contributes to enterprise integration standards, API strategy, and operational ... application developers to ensure successful delivery of business solutions. * Implement and ...

BI-Commercial

.NET Developer with AWS

Wilmington, DE · On-site

NET Experience with RESTful API design and implementation Experience in containerization technologies like Docker and orchestration tools like Kubernetes Strong experience with Angular framework ...

Acestack

Java Developer

New Castle, DE · On-site

$49.25 - $63.75/hr

Java Developer Location: New Castle, DE / Jersey City, NJ / Tampa, FL Full Time Core Development ... Microservices architecture (service decomposition, API contracts) * REST APIs, JSON, OpenAPI ...

New

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 ...

Northern Base

Senior Java Developer

New Castle, DE · On-site

$55.50 - $70.75/hr

... API Contracts RESTful APIs JSON & OpenAPI / Swagger Apache Kafka Kafka Producers, Consumers ... Developer Mentoring Preferred Experience: Enterprise Java Microservices Development Kafka-Based ...

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 ...

MSYS Inc.

Full Stack Developer - Onsite

Wilmington, DE · On-site

Full Stack Developer - Onsite Location : Wilmington, DE Length :Long term Restriction: W2 Only ... RESTful API development Additional Requirements * Strong expertise in either frontend (React) or ...

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 Sep 14, 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?

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

Api Developer jobs near you
Infographic showing various Api Developer job openings in Delaware as of September 2026, with employment types broken down into 85% Full Time, 6% Part Time, and 9% Contract. Highlights an 80% Physical, 4% Hybrid, and 16% Remote job distribution, with an average salary of $124,674 per year, or $59.9 per hour.

Mulesoft Developer

Newark, DE • On-site

Delan Associates, Inc
Engineering Professional Services • 51 - 200 employees
Learn more about Delan Associates, Incexternal

$49.25 - $65.25/hr

Full-time

Re-posted 20 days ago

Job description

Location: Newark DE

Position: Mulesoft Developer

Job Description:


Responsible for designing, developing, implementing, and supporting enterprise integration solutions using MuleSoft's Anypoint Platform. This role partners closely with business stakeholders, architects, product teams, and application development teams to deliver scalable, secure, and reliable integrations that enable data exchange and business capabilities across Sallie Mae platforms. The position contributes to enterprise integration standards, API strategy, and operational excellence while ensuring solutions meet performance, security, and governance requirements.

What You'll Do
  • Design, develop, test, deploy, and support MuleSoft APIs and integration solutions utilizing API-led connectivity and enterprise integration best practices.
  • Build and maintain integrations between Salesforce, AWS, Snowflake/Enterprise Data Warehouse (EDW), and other internal and external platforms.
  • Participate in architecture and solution design activities, providing recommendations on integration patterns, technical approaches, and platform capabilities.
  • Develop reusable APIs, shared services, integration frameworks, and components that promote consistency, scalability, and maintainability across the enterprise.
  • Create and maintain technical documentation including interface specifications, solution designs, deployment procedures, and operational support documentation.
  • Support CI/CD processes, deployment automation, release management activities, and environment strategy across development, testing, and production environments.
  • Monitor, troubleshoot, and resolve integration issues through root cause analysis and effective production support practices.
  • Collaborate with architects, product owners, business analysts, security teams, infrastructure teams, and application developers to ensure successful delivery of business solutions.
  • Implement and maintain security, monitoring, logging, alerting, governance, and performance standards for integration services.
  • Conduct code reviews and provide technical guidance to development teams while promoting enterprise development standards and best practices.
  • Participate in agile ceremonies including sprint planning, backlog refinement, estimation, and retrospectives.
  • Identify opportunities for continuous improvement in integration architecture, development processes, operational support, and platform capabilities.