Senior Backend Engineer, AI, Java, Kubernetes

FIS; Chicago (IL); Hybrid; USD 99,000 - 168,000; Full time

Job summary

FIS is seeking a Senior Software Engineer to join our hybrid team in Illinois. You will design, develop and scale SaaS fintech solutions, collaborating across product, UX, and QA while mentoring peers.

The role emphasizes Java-based microservices, cloud-native stacks, and modern CI/CD practices. The ideal candidate has 5+ years in software engineering, strong Java/Spring/Micronaut skills, and experience with AWS, Kubernetes, Docker, PostgreSQL, and Redis.

Qualifications

• SaaS or FinTech experience preferred; 5+ years in software engineering.
• Degree in Computer Science or Software Engineering preferred.
• Strong proficiency in Java, Spring Boot, Micronaut; RESTful APIs and microservices.
• Hands-on with PostgreSQL, Redis; cloud-native (AWS, Kubernetes, Docker).
• Experience with CI/CD pipelines (Jenkins, Git).
• Experience with Jira, Confluence; collaborative team player.
• Passion for innovation and emerging tech, incl. AI-assisted tooling.

Responsibilities

• Mentor junior team members and promote continuous learning.
• Engage in full-stack development from backend to UI.
• Collaborate with product, UX, and QA to deliver features quickly.
• Analyze complex problems; propose effective solutions.
• Proactively improve system performance and reliability.
• Stay current with industry trends and contribute to tech roadmap.

Skills

5+ years experience

Java

Spring Boot

Micronaut

RESTful APIs

PostgreSQL

Redis

AWS

Kubernetes

Docker

Jenkins

Git

Jira/Confluence

Education

BS in Computer Science or related field

Tools

Jenkins

Git

Docker

Kubernetes

Temporal

ActiveMQ

PostgreSQL

Redis

ReactJS

AWS

Job description

Position Type :

Full time

Type Of Hire :

Experienced (relevant combo of work and education)

Job Description

About FIS

We are FIS. Our technology powers the world's economy and our teams bring innovation to life. We champion diversity to deliver the best products and solutions for our colleagues, clients and communities. If you're ready to start learning, growing and making an impact with a career in fintech, we'd like to know: Are you FIS?

Current and future sponsorship not available for this position

This position is hybrid (3 days onsite) in Illinois, Milwaukee, Atlanta & Jacksonville.

About the Team

We are the premiere digital transformation partner for financial institutions committed to the future of banking and to creating safe and personalized customer experiences that help people better manage their financial lives.

Our fully integrated and flexible platform is built on years of digital lending experience, enabling digital agility within months and a full suite of end-to-end consumer, small business and embedded finance solutions that fit the way people want to bank.

FIS technology powers the world's economy, and our teams bring innovation to life. If you are ready to start learning, growing, and making an impact with a career in fintech, we encourage you to apply. Are you FIS?

Day-to-Day Operation

As a Senior Software Engineer, your day will be filled with exciting challenges and opportunities to shape the future of financial technology.

You’ll collaborate with a talented team of engineers and play a crucial role in developing cutting‑edge solutions that drive innovation in the financial sector.

Your responsibilities will include developing and implementing scalable software, troubleshooting complex issues, and contributing to the overall success of our products.

What you will be doing

• Mentor junior team members and contribute to a culture of continuous learning and improvement.
• Engage in full‑stack development, from backend systems to user interfaces.
• Collaborate with cross‑functional teams, including product managers, UX designers, and QA engineers, to bring innovative features and products to market. Participate in agile development processes to deliver results efficiently.
• Analyze complex technical problems and propose effective solutions.
• Be proactive in identifying areas for improvement and optimizing existing systems for performance and reliability.
• Stay abreast of industry trends and emerging technologies. Contribute to the company's technological roadmap by introducing innovative ideas and solutions.

What you bring

• 5+ years of experience in software engineering, with a focus on SaaS or FinTech, is preferred.
• A degree in Computer Science, Software Engineering, or a related field is preferred.
• Strong proficiency in Java, Spring Boot, and Micronaut expertise, with a deep understanding of RESTful APIs and microservices.
• Hands‑on experience with PostgreSQL, Redis, and cloud‑native environments (AWS, Kubernetes, Docker).
• Experience with CI/CD pipelines (Jenkins, Git).
• Experience with Jira, Confluence, and other similar project management.
• Excellent collaboration and communication skills. Ability to work effectively in a team‑oriented environment.
• A passion for innovation and emerging technologies (likeAI-assisteddevelopment tools).

Tech Stack

• Java, Springboot, Micronaut, Temporal, ActiveMQ, Postgres, Redis, ReactJs, Kubernetes, AWS, Jenkins, Git

What We Offer You

• A voice in the future of fintech.
• Continuous learning and development.
• Collaborative work environment.
• Opportunities to give back.
• Competitive salary and benefits.

FIS is committed to providing its employees with an exciting career opportunity and competitive compensation.

The pay range for this full‑time position is a 99,040.00 - 168,380.00 USD annual and reflects the minimum and maximum target for new hire salaries for this position based on the posted role, level, and location.

Within the range, actual individual starting pay is determined by additional factors, including job-related skills, experience, and relevant education or training.

Any changes in work location will also impact actual individual starting pay. Please consult with your recruiter about the specific salary range for your preferred location during the hiring process.

FIS is committed to providing its employees with an exciting career opportunity and competitive compensation. The pay range for this full‑time position is $99,040.00 - $168,380.00 and reflects the minimum and maximum target for new hire salaries for this position based on the posted role, level, and location. Within the range, actual individual starting pay is determined by additional factors, including job‑related skills, experience, and relevant education or training. Any changes in work location will also impact actual individual starting pay. Please consult with your recruiter about the specific salary range for your preferred location during the hiring process.

Privacy Statement

FIS is committed to protecting the privacy and security of all personal information that we process in order to provide services to our clients. For specific information on how FIS protects personal information online, please see the Online Privacy Notice.

EEOC Statement

FIS is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, marital status, genetic information, national origin, disability, veteran status, and other protected characteristics. The EEO is the Law poster is available here supplement document available here

For positions located in the US, the following conditions apply. If you are made a conditional offer of employment, you will be required to undergo a drug test. ADA Disclaimer: In developing this job description care was taken to include all competencies needed to successfully perform in this position. However, for Americans with Disabilities Act (ADA) purposes, the essential functions of the job may or may not have been described for purposes of ADA reasonable accommodation. All reasonable accommodation requests will be reviewed and evaluated on a case-by-case basis.