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Senior Java Backend Developer Jobs in Delaware (NOW HIRING)

Ampcus Inc

Sr. Java Developer

Wilmington, DE · On-site

$55.50 - $70.75/hr

They are in search of a highly motivated candidate to join their talented team as a Sr. Java Developer, responsible for executing software solutions, design, development, and technical ...

Spruce Infotech Inc

Sr. Java Developer

Wilmington, DE · On-site

$55.50 - $70.75/hr

Provide expert knowledge and guidance for acquisition related backend Java and/or frontend Web features. Ensure that the development teams are adhering to the client SDLC process. Provide technical ...

Donato Technologies, Inc

Java FSD with AWS

Wilmington, DE · On-site

$49.50 - $64/hr

... back-end developer role Design and developer application using Core Java Design and developer application using J2EE. Experience in J2EE design patterns Create/consume Rest APIs & Microservices ...

Hirekeyz Inc

Java FSD with AWS

Wilmington, DE · On-site

$49.50 - $64/hr

... back-end developer role Design and developer application using Core Java Design and developer application using J2EE. Experience in J2EE design patterns Create/consume Rest APIs & Microservices ...

Ampcus Inc

Java Full Stack Developers

Wilmington, DE · On-site

$51 - $65.75/hr

... Developer. The role involves working on system design, application development, and ensuring ... Required : • 3 years of experience in Java backend, Microservices, Spring Boot, ReactJS, and AWS ...

Dellfor Technologies

senior java developer

Delaware City, DE · On-site

$55.25 - $70.50/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Competence in using Java IDE tools of Eclipse, GGTS, Rational Application Developer (RAD), WebSphere Application Developer (WSAD) and Web Logic Workshop to develop dynamic web applications. Good ...

Dellfor Technologies

Senior JAVA Developer

Delaware City, DE · On-site

$80K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

... Java, J2EE and web/internet based programming experience (both client and server side) 5+ Experience with OOA/OOD, distributed systems/software, real time processing, relational database systems ...

Inframatix Inc

Sr Java Full Stack Developer

Wilmington, DE

$51 - $65.75/hr

Job Title: Sr Java Full Stack Developer Location: Wilmington, DE Duration: 2+ years Required Experience "Minimum 10+ years Overview The people they are seeking, now, will be part of their Enterprise ...

Inframatix Inc

Sr Java Full Stack Developer

Wilmington, DE · On-site

$51 - $65.75/hr

Job Title: Sr Java Full Stack Developer Location: Wilmington, DE Duration: 2+ years Required Experience "Minimum 10+ years Overview The people they are seeking, now, will be part of their Enterprise ...

Arka Infotech Inc

Sr.Core Java Developer

Wilmington, DE

$55.50 - $70.75/hr

Interviews can be arranged immediately Sr. Core Java Developer Location: Wilmington, DE Length: 2 years No. of postions: 10 F2F REQUIRED Locals only Keys: Local to the Wilmington/Newark, DE area or ...

Apton inc

Senior Java Microservices developer

Wilmington, DE · On-site

$55.50 - $70.75/hr

Java, J2ee, spring, spring boot, Microservices, API Qualifications Need strong consultant with microservices and spring boot apis Additional Information All your information will be kept confidential ...

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Senior Java Backend Developer information

See Delaware salary details

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$140K

$190.7K

How much do senior java backend developer jobs pay per year?

As of Aug 15, 2026, the average yearly pay for senior java backend developer in Delaware is $139,959.00, according to ZipRecruiter salary data. Most workers in this role earn between $120,600.00 and $156,600.00 per year, depending on experience, location, and employer.

What is a senior Java backend developer?

A Senior Java Backend Developer is responsible for designing, implementing, and maintaining the server-side logic of applications using Java. They work with databases, APIs, and cloud services to ensure high performance and scalability. Additionally, they collaborate with front-end developers, DevOps teams, and business stakeholders to deliver robust and secure solutions. Seniors are expected to mentor junior developers and contribute to architectural decisions and best practices.

What are the typical daily responsibilities of a senior Java backend developer?

Senior Java Backend Developers usually spend their days designing and implementing backend components, reviewing code, and optimizing system performance. You may take part in architecture discussions, mentor junior developers, and troubleshoot complex technical issues. Collaboration with front-end developers, QA testers, and project managers is frequent to ensure seamless integration and successful product delivery. Additionally, you might be responsible for maintaining system documentation and keeping up-to-date with new technologies relevant to backend development. Overall, the role combines hands-on coding with leadership and cross-functional teamwork.

What are the key skills and qualifications needed to thrive in the senior Java backend developer position, and why are they important?

To thrive as a Senior Java Backend Developer, you need deep knowledge of Java, object-oriented design, RESTful APIs, and database systems, typically backed by a degree in computer science or related field and several years of relevant experience. Expertise in frameworks like Spring, ORM tools such as Hibernate, version control systems like Git, and, often, certifications such as Oracle Certified Professional Java Programmer are valued. Strong problem-solving, leadership, and clear communication skills help in mentoring junior developers and collaborating across teams. These competencies ensure robust, scalable backend solutions and effective team coordination in complex software projects.

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

The most popular types of Java Backend Developer jobs in Delaware are:

What are popular job titles related to Senior Java Backend Developer jobs in Delaware?

For Senior Java Backend Developer jobs in Delaware, the most frequently searched job titles are:

What job categories do people searching Senior Java Backend Developer jobs in Delaware look for?

The top searched job categories for Senior Java Backend Developer jobs in Delaware are:

What cities in Delaware are hiring for Senior Java Backend Developer jobs?

Cities in Delaware with the most Senior Java Backend Developer job openings:

Senior Java Backend Developer jobs near you
Infographic showing various Senior Java Backend Developer job openings in Delaware as of August 2026, with employment types broken down into 78% Full Time, 7% Part Time, and 15% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $139,959 per year, or $67.3 per hour.

Sr. Java Developer

Ampcus Inc

Wilmington, DE • On-site

$55.50 - $70.75/hr

Full-time

Re-posted 7 days ago

Job description

Job Summary:
Ampcus Inc. is a certified global provider of a broad range of Technology and Business consulting services. They are in search of a highly motivated candidate to join their talented team as a Sr. Java Developer, responsible for executing software solutions, design, development, and technical troubleshooting.
Responsibilities:
• Executes software solutions, design, development, and technical troubleshooting with ability to think beyond routine or conventional approaches to build solutions or break down technical problems.
• Creates secure and high-quality production code and maintains algorithms that run synchronously with appropriate systems.
• Produces architecture and design artifacts for complex applications while being accountable for ensuring design constraints are met by software code development.
• Gathers, analyzes, synthesizes, and develops visualizations and reporting from large, diverse data sets in service of continuous improvement of software applications and systems.
• Proactively identifies hidden problems and patterns in data and uses these insights to drive improvements to coding hygiene and system architecture.
• Contributes to software engineering communities of practice and events that explore new and emerging technologies.
• Adds to team culture of diversity, opportunity, inclusion, and respect.
Qualifications:
Required:
• 3 years of Software Development experience with enterprise applications.
• Writes secure and high-quality code using the syntax of at least one programming language with limited guidance - Java / Spring Boot / Microservices / RestAPIs.
• Designs, develops, codes, and troubleshoots with consideration of upstream and downstream systems and technical implications.
• Hands-on practical experience in system design, application development, testing, and operational stability.
• Experience in developing, debugging, and maintaining code in a large corporate environment with one or more modern programming languages and database querying languages.
• Gathers, analyzes, and draws conclusions from large, diverse data sets to identify problems and contribute to decision-making in service of secure, stable application development.
• Overall knowledge of the Software Development Life Cycle.
• Solid understanding of agile methodologies such as CI/CD, Application Resiliency, and Security.
• Demonstrated knowledge of software applications and technical processes within a technical discipline (e.g., cloud, artificial intelligence, machine learning, mobile, etc.).
• Skills: Java, Spring Boot, AWS.
• Exposure to cloud technologies – AWS EC2, EKS, RDS, S3, Lambdas.
• Previous experience with Databases such as Postgres or Cassandra.
Company:
Ampcus is a global business, technology consulting and an staff augmentation firm specializing in AI/ML,digital solutions, Cybersecurity & Risk management, Testing, Forensics & Fraud services and human capital management. Founded in 2004, the company is headquartered in Chantilly, USA, with a team of 1001-5000 employees. The company is currently Late Stage.
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About Ampcus

Sourced by ZipRecruiter

Ampcus Inc. is a ISO 20000, ISO 27000, ISO 9001, CMMI DEV/3 SM and CMMI SVC/3 SM certified global provider of a broad range of Technology and Business consulting services. From strategy to execution, our disciplined yet flexible approach starts and ends with our clients. By listening hard and working harder, client goals become our goals. Their success is our satisfaction. It’s why our clients sleep well at night. We believe that the success of an engagement is determined by strong project management, as well as clear communication and mutual commitment working collaboratively. Our methodology begins with listening to the customer about their needs, then working with their team to gain a clear understanding of the requirements, while providing knowledge transfer of best practices for the organization.

Industry

It services

Company size

1,001 - 5,000 Employees

Headquarters location

Chantilly, VA, US

Year founded

2004

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