Senior Engineer - Java / Spring Boot / React - Hybrid

Genesis10 is currently seeking a Senior Engineer - Java / Spring Boot / React / Open Systems for a contract position with a Regional Financial Institution located in Columbus, OH. This is a contract, hybrid opportunity.

Compensation: $50.00 - $60.00 per hour, W2, based on qualifications

Position Overview:

This role involves designing, developing, testing, and deploying highly scalable enterprise applications. The ideal candidate will lead the development of full-stack applications, including RESTful APIs, microservices, and responsive React-based user interfaces, translating business requirements into secure and maintainable software solutions.

Key Responsibilities:

Design, develop, test, deploy, and support highly scalable enterprise applications using Java, Spring Boot, React, and modern open-system technologies

Lead the development of full-stack applications, including RESTful APIs, microservices, backend services, and responsive React-based user interfaces

Translate business and technical requirements into scalable, maintainable, and secure software solutions

Design and implement cloud-ready, distributed, and service-oriented applications

Develop high-quality Java applications using Spring Boot, Spring Framework, JPA/Hibernate, and REST APIs

Build reusable and maintainable React components and integrate front-end applications with backend APIs

Participate in application architecture and technical design activities

Lead or contribute to the modernization of legacy applications into open-system, API-driven, and microservices-based architectures

Develop unit, integration, and automated tests to ensure application quality and performance

Perform code reviews and provide technical guidance and mentoring to junior and mid-level engineers

Troubleshoot complex application, integration, performance, and production issues

Collaborate with product owners, business analysts, architects, and other technology teams

Participate in Agile/Scrum ceremonies

Implement secure coding practices and support CI/CD pipelines

Monitor application performance and identify opportunities for improvement

Create and maintain technical documentation, architecture diagrams, and API specifications

Stay current with emerging technologies and recommend improvements

Primary Requirements:

Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field, or equivalent experience

7+ years of software engineering experience with enterprise application development

Strong hands-on experience with Java and Spring Boot

Strong experience developing RESTful APIs and microservices

Professional experience with React, JavaScript, HTML, and CSS

Strong understanding of object-oriented programming, design patterns, data structures, and software engineering principles

Experience with relational databases and SQL, such as Oracle, PostgreSQL, or SQL Server

Experience with Git and modern source-control practices

Experience with unit testing and automated testing frameworks

Experience working in an Agile/Scrum software development environment

Strong troubleshooting, analytical, and problem-solving skills

Ability to work independently while collaborating effectively with cross-functional teams

Strong verbal and written communication skills

Desired Skills:

Experience designing and developing cloud-native applications using AWS, Azure, or Google Cloud

Experience with microservices architecture, event-driven architecture, and distributed systems

Experience with Docker, Kubernetes, and containerized application development

Experience with messaging and streaming technologies such as Kafka, RabbitMQ, or IBM MQ

Experience with CI/CD and DevOps tools such as Jenkins, GitHub Actions, GitLab, or Azure DevOps

Experience with Spring Cloud, Spring Security, OAuth2, and JWT

Experience with TypeScript, Redux, React Query, or other modern React technologies

Experience with NoSQL databases such as MongoDB, DynamoDB, or Redis

Experience with API management, API gateways, and enterprise integration patterns

Knowledge of AWS services, cloud security, observability, and application monitoring

Experience modernizing legacy applications

Experience with performance tuning, scalability, resiliency, and high-availability architectures

Experience working in financial services, banking, insurance, or other highly regulated industries

Experience providing technical leadership and mentoring engineers

Familiarity with AI-assisted software development and modern developer productivity tools

Only candidates available and ready to work directly as Genesis10 employees will be considered for this position.

If you have the described qualifications and are interested in this exciting opportunity, please apply!

Ranked a Top Staffing Firm in the U.S. by Staffing Industry Analysts for six consecutive years, Genesis10 puts thousands of consultants and employees to work across the United States every year in contract, contract-for-hire, and permanent placement roles. With more than 300 active clients, Genesis10 provides access to many of the Fortune 100 firms and a variety of mid-market organizations across the full spectrum of industry verticals.

For contract roles, Genesis10 offers the benefits listed below. If this is a perm-placement opportunity, our recruiter can talk you through the unique benefits offered for that particular client. Benefits of Working with Genesis10:

Access to hundreds of clients, most who have been working with Genesis10 for 5-20+ years

The opportunity to have a career-home in Genesis10; many of our consultants have been working exclusively with Genesis10 for years

Access to an experienced, caring recruiting team (more than 7 years of experience, on average)

Behavioral Health Platform

Medical, Dental, Vision

Health Savings Account

Voluntary Hospital Indemnity (Critical Illness & Accident)

Voluntary Term Life Insurance

401K

Sick Pay (for applicable states/municipalities)

Commuter Benefits (Dallas, NYC, SF, and Illinois)

For multiple years running, Genesis10 has been recognized as a Top Staffing Firm in the U.S., as a Best Company for Work-Life Balance, as a Best Company for Career Growth, for Diversity, and for Leadership, amongst others. To learn more and to view all of our available career opportunities, please visit us at our website.

Genesis10 is an Equal Opportunity Employer. Candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

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