Senior Full?Stack Software Engineer (Java, React, Microservices)- Wilmington, DE

Wilmington, DE, US • Posted 7 hours ago • Updated 7 hours ago
Full Time
On-site
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Job Details

Skills

  • Microservices
  • Problem Solving
  • Conflict Resolution
  • Regulatory Compliance
  • Usability
  • Cross-browser
  • UI
  • Authentication
  • Authorization
  • API
  • Data Integration
  • SQL
  • NoSQL
  • DevOps
  • Cloud Computing
  • Continuous Integration
  • Continuous Delivery
  • OCP
  • Amazon Web Services
  • Reliability Engineering
  • Scalability
  • Productivity
  • IT Management
  • Technical Drafting
  • Mentorship
  • Computer Science
  • Software Engineering
  • React.js
  • JavaScript
  • TypeScript
  • HTML5
  • Css3
  • Cascading Style Sheets
  • Java
  • Spring Framework
  • Spring MVC
  • Spring Security
  • Hibernate
  • JPA
  • RESTful
  • Database
  • Microsoft SQL Server
  • MongoDB
  • Git
  • Apache Maven
  • Jenkins
  • Docker
  • Graph Databases
  • Neo4j
  • Artificial Intelligence
  • Generative Artificial Intelligence (AI)
  • Kubernetes
  • SAP BASIS
  • Law
  • IT Service Management
  • Innovation
  • Collaboration
  • Recruiting
  • Insurance
  • Finance
  • Professional Development
  • Training
  • Leadership
  • CompTIA
  • Customer Service
  • Career Counseling
  • Apex
  • Oracle Application Express

Summary

Job#: 3027344

Job Description:

Role Overview

This contingent role supports moderately complex software engineering initiatives, contributing to large-scale planning, technical problem-solving, and delivery of enterprise-grade applications. You will analyze multi-layered engineering challenges, collaborate with cross-functional teams, and apply strong knowledge of engineering standards, policies, and compliance requirements to ensure high-quality outcomes.

Key Responsibilities

End-to-End Full-Stack Development
  • Design, build, test, and deploy full-stack applications across UI, backend, and data layers.
  • Own features from technical design through production release, ensuring performance, security, and operational readiness.
  • Deliver complex enterprise builds independently while meeting engineering and security standards.

Frontend / UI Engineering
  • Develop modern, responsive, accessible UI experiences using React, JavaScript/TypeScript, HTML5, and CSS3.
  • Build reusable components, shared libraries, and scalable UI architecture patterns.
  • Optimize for performance, usability, and cross-browser reliability.

Backend Engineering
  • Build scalable backend services using Java, Spring Boot, Spring MVC, Spring Security, Hibernate/JPA.
  • Develop and maintain high-quality RESTful APIs integrating UI, data, and downstream systems.
  • Implement secure coding practices, authentication/authorization, and enterprise API governance.

Graph Databases & Data Integration
  • Design and implement graph data models (Neo4j or similar) for relationship-heavy domains.
  • Develop and optimize graph queries and integrate graph data into backend services.
  • Work across SQL (MSSQL) and NoSQL (MongoDB) within hybrid architectures.

DevOps, Cloud & Platform Engineering
  • Contribute to CI/CD pipelines using Git, Maven, Jenkins, Docker, and OpenShift (OCP).
  • Deploy and operate applications in AWS and enterprise container platforms.
  • Improve system reliability, scalability, monitoring, and developer productivity.

Technical Leadership & Collaboration
  • Lead technical design sessions, architecture reviews, and proof-of-concept initiatives.
  • Partner with product, platform, data, and AI teams across Consumer Technologies.
  • Mentor engineers through code reviews, design guidance, and best-practice advocacy.

Required Qualifications
  • Bachelor's or Master's in Computer Science, Engineering, or related technical field.
  • 6+ years of professional software engineering experience.
  • Strong frontend experience with React, JavaScript/TypeScript, HTML5, CSS3.
  • Strong backend experience with Java, Spring Boot, Spring MVC, Spring Security, Hibernate/JPA.
  • Proven experience designing and building RESTful APIs.
  • Database expertise with SQL Server and MongoDB.
  • Proficiency with Git, Maven, Jenkins, Docker.
  • Demonstrated ability to independently deliver large, complex solutions in an enterprise environment.

Preferred Qualifications
  • Hands-on experience with graph databases (Neo4j, Aura).
  • Experience designing knowledge graphs or relationship-driven data models.
  • Exposure to AI or GenAI-enabled applications and data platforms.
  • Experience with Kubernetes, OpenShift, and enterprise observability tools.
  • Background supporting large-scale consumer or data platform environments.

Job Expectations
  • Self-driven engineer capable of owning delivery with minimal oversight.
  • Comfortable challenging norms and introducing innovative engineering approaches.
  • Highly collaborative across engineering, business, and platform teams.
  • Lead design sessions, POCs, and high-impact technical workstreams.
  • Ability to work in a hybrid model aligned to U.S. EST business hours.


EEO Employer

Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Employee Services Department at or .

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click for more details.

Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Apex team member can provide.
Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.
  • Dice Id: apexsan
  • Position Id: BHJOB2374_3027344
  • Posted 7 hours ago

Company Info

About Apex Systems

Part of the Commercial Segment of ASGN Incorporated, Apex Systems is a leading global technology services company specializing in customizable industry-specific solutions that drive better results and transform businesses for over 25 years.

Delivering Value and Innovation

Apex Systems partners with global and Fortune 500 companies, leveraging cutting-edge technology through strategic alliances to drive businesses forward. These proven solutions and services combined with our unique deployment model that builds qualified, industry specific, fit-for-purpose teams fulfills our clients’ digital visions and achieves results. Our agility and obsession with providing value enables us to support an ever-evolving digital world.

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