Demo

Senior Java Developer

Apex Systems
Hopkins, MN Full Time
POSTED ON 11/18/2025
AVAILABLE BEFORE 12/17/2025
Job#: 3010349

Job Description:

Overview

A leading financial services organization is seeking a Senior Java Developer to support a high-impact modernization initiative within its payment systems division. This role involves hands-on development, automation testing, and CI/CD pipeline integration, with close collaboration across infrastructure and application teams.

Key Responsibilities

  • Participate in technical requirement gathering and Agile ceremonies.
  • Design and develop scalable Java microservices and secure APIs.
  • Implement automation testing frameworks for UI and API layers.
  • Build and maintain CI/CD pipelines using industry-standard tools.
  • Provide production support and post-deployment assistance.
  • Collaborate with infrastructure teams to ensure seamless integration.
  • Maintain clear documentation and support knowledge transfer.

Required Skills

  • Strong communication and cross-functional collaboration skills.
  • Core Java and Java Microservices development.
  • API development and security protocols (OAuth2, JWT, mTLS).
  • Experience with API Gateways (Apigee, ISTIO).
  • Automation Testing: Java, Selenium, RestAssured, Cucumber (BDD).
  • CI/CD Tools: Jenkins, Rancher.
  • Databases: Oracle, Postgres, DB2, SQL Server, MongoDB, Cassandra, NoSQL.
  • Event Streaming: Kafka.
  • Monitoring & Observability: Splunk, Datadog.
  • Containerization & Orchestration: Docker, Kubernetes.
  • Productivity Tools: Microsoft Office, Teams, JIRA, ServiceNow, GitLab/GitHub.

Preferred Skills

  • Experience with cloud platforms (AWS or Azure).
  • DB2 schema design, SQL tuning, and database administration tools (BMC, IBM).

Qualifications

  • Bachelor’s degree in Computer Science, MIS, or related field.
  • Legally authorized to work in the United States.
  • Prior experience supporting ITSM tools and scripting (JavaScript, XML, HTML) is a plus.

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 [email protected] or 844-463-6178.

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 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.

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 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.

Apex Systems is part of the Commercial Segment of ASGN Incorporated.

NYSE: ASGN

4400 Cox Road

Suite 200

Glen Allen, Virginia 23060

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 [email protected] (Do not submit resumes or solicit consultants to this email address). UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Apex Systems.

Salary : $69

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