Freelance Java Spring Developer Jobs in South Dakota

Job Title: Java Developer (Contract to Hire)

Industry: Life Insurance / Financial Services

Work Location: Hybrid – Sioux Falls, SD (preferred), Des Moines, Chicago, or Fargo

Duration: 6–12 Month Contract to Hire

We are seeking an experienced Java Developer to support a large-scale modernization initiative within the life insurance industry. This role is focused on transforming legacy systems into scalable, API-driven architectures while integrating emerging AI capabilities to enhance customer experience.

This individual will play a key role in a high-impact contact center transformation project, replacing legacy Edify systems with modern cloud-based Customer Experience (CX/CCaaS) platforms. The work involves bridging CICS/mainframe-based processes with modern microservices, exposing business functionality via APIs, and enabling intelligent, AI-driven workflows.

You will partner closely with cross-functional teams to modernize core systems, improve customer interactions, and accelerate the organization’s move from manual processes to automated, digital-first experiences.

• Drive modernization of legacy CICS-based systems into scalable microservices
• Enable AI-driven customer interactions by integrating intelligent tools into backend systems
• Support a major contact center transformation initiative (Edify replacement)
• Improve speed, scalability, and maintainability of customer-facing systems
• Help transition from manual, legacy workflows to automated, modern digital experiences

• Design, develop, and maintain RESTful APIs to expose legacy business functionality
• Build and deploy Java-based microservices (Spring Boot) to replace monolithic systems
• Integrate backend services with modern web front ends and CX/CCaaS platforms
• Collaborate with architecture and product teams to define scalable system designs
• Contribute to AI integration efforts across software development workflows and customer experiences
• Ensure high performance, reliability, and security of services

• Extensive hands-on experience with Java development
• Strong expertise in REST APIs, microservices architecture, and Spring Boot
• Experience integrating backend services with web-based front-end applications
• Familiarity with exposing legacy systems (such as CICS/mainframe environments) via APIs
• Understanding of AI applications in software development or customer experience

• Experience within the life insurance or financial services industry
• Exposure to contact center or Customer Experience platforms (CCaaS)
• Experience modernizing legacy systems into cloud-based solutions
• Familiarity with enterprise integration patterns and middleware technologies

• Hybrid schedule with strong preference for onsite collaboration
• Standard hours: Monday–Thursday (7:30 AM – 5:00 PM CST), early finish on Fridays
• Collaborative team environment across multiple Midwest locations

Job Type & Location

This is a Contract to Hire position based out of Sioux Falls, SD.

The pay range for this position is $65.00 - $80.00/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:
• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

This is a hybrid position in Sioux Falls,SD.

This position is anticipated to close on Jun 13, 2026.

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

We’re a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We’re a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We’re strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We’re building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.