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100% U.S.-Based Java Experts | Highly Vetted Consultants

At Keyhole Software, our team of U.S.-based Java experts delivers modern, secure, and high-quality solutions. Let's discuss how we can help your business succeed—contact us today!

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Java Consulting Services

Keyhole Software provides expert Java development services to help businesses build, modernize, and scale their applications. Whether you're starting a new project, enhancing an existing Java application, or migrating from another platform, our experienced Java consultants deliver tailored solutions to meet your business goals.

Custom Java Development

Strategic analysis & tailored advice for modernizing legacy Java applications—for example, migrating to the cloud or transitioning from legacy systems to modern Java frameworks.

Application Development

Our expert Java consultants specialize in creating high-performance custom applications with modular architectures, ensuring speed, security, and scalability.

API & Backend Integration

Connecting Java applications with RESTful APIs, GraphQL, and cloud-based solutions to enable real-time data exchange and secure communication. We optimize API performance, ensuring reliability and speed for a seamless user experience.

Performance Optimization

Our Java experts conduct in-depth code audits to identify performance bottlenecks, security vulnerabilities, and architectural inefficiencies to optimize Java applications.

Why Choose Keyhole For Java Development

Award Seal for Top Software Developers in Kansas City 2025 by Clutch

Award Seal for Top Software Developers Award in Kansas by Clutch

Award Seal for Top Java Developers in Kansas 2025 by Clutch

The Keyhole Difference

Our Experts Drive Java Results

We develop high-quality enterprise Java applications and deliver positive project results to clients through our highly vetted team of U.S.-based employee consultants.

17+ years of development experience on average - consultants average 17 years of individual experience, ensuring deep Java development expertise.

78% of projects last year were with repeat clients – high retention rate reflects trusted partnerships.

5+ years average consultant tenure – long-term employees allows us to match your project with the right consultant for deep project alignment.

If you're looking for expert Java software developers that your business can rely on, look no further than Keyhole Software.

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Why Clients Trust Keyhole

At Keyhole Software, trust is built on expertise, transparency, and a commitment to delivering real results. Our team consists of experienced software architects and developers who specialize in enterprise Java, microservices, cloud-native solutions, and legacy system modernization.

With decades of hands-on experience, we don’t just follow industry best practices—we help shape them. Our software developers have worked on Java software development solutions every day since Keyhole was established in 2008.

Clients also trust Keyhole because of our unwavering commitment to honesty and transparency. We don’t overpromise—we provide realistic assessments, clear communication, and measurable outcomes. From modernizing complex legacy systems to architecting cutting-edge cloud solutions, we take the time to understand each organization’s unique challenges and tailor solutions that align with their business goals.

Our reputation has been built on delivering quality software, mitigating risk, and ensuring our clients get the best return on their technology investments.

Beyond technical excellence, Keyhole Software prioritizes collaboration and knowledge transfer. We don’t just deliver solutions—we empower teams by mentoring in-house developers, introducing best practices, and fostering a culture of continuous learning.

Whether working as an embedded team or providing strategic consulting, we ensure that our clients have the tools and understanding needed to maintain and evolve their software long after our engagement ends. This approach fosters long-term relationships built on trust, knowledge, and proven success.

Java Development Case Studies

Java Applications We've Built For Clients

Keyhole Software has successfully delivered Java-based solutions across a variety of industries including financial, manufacturing, logistics, healthcare, and retail. Below are real-world Java use cases that showcase our expertise, along with links to relevant Java consulting project descriptions and case studies.

Use Case: Secure Financial Dashboards & Microservices-Based Platforms

We developed a React-based financial dashboard that allows users to visualize and analyze real-time financial data. Integrated with Java microservices, this system ensures scalability, security, and real-time performance, enabling seamless transactions and risk management.

Case Study: Java Microservices & React Development for Financial Services

Use Cases: Real-Time Data, Financial and Risk Management, Enterprise Application Modernization

Keyhole Software led a Java-based Multi-Dimensional Enterprise Architecture Transformation for a government entity overseeing agriculture programs. The expert team modernized the organization's Java ecosystem, focusing on containerization and cloud migration with Docker, AWS ECS, and Spring Boot. They enhanced the single-page application (SPA) architecture, optimizing builds and developer workflows while integrating seamlessly with a Spring-based Java middle tier.

The project also involved developing a Java-driven commodity market pricing application, leveraging Spring Boot, modularized APIs, and OpenAPI (Swagger) for robust API documentation. Additionally, Keyhole introduced DevOps best practices, implemented CI/CD pipelines, and provided enterprise-wide Java architectural leadership, ensuring a scalable, efficient, and cloud-ready infrastructure.

Project: Multi-Dimensional Enterprise Architecture Transformation

Use Case: Digital Transformation of Production & Order Management

Many manufacturers still rely on manual, spreadsheet-based workflows, leading to inefficiencies, errors, and delays in production and order processing. Keyhole Software partnered with a manufacturing client to modernize their legacy workflows, replacing outdated processes with custom digital solutions built using React, Java, Spring Boot, and automation technologies.

Solution Overview

Production Line Optimization: Developed a React-powered desktop application using Electron to replace manual tracking, ensuring real-time production data management even in offline environments.
Order Management Enhancement: Built a React-based front-end integrated with a Spring Boot backend, replacing fragmented spreadsheet processes with a streamlined, automated system for managing orders and shipping logistics.
Automation for Business Efficiency: Used Apache POI in Java to automate spreadsheet-based workflows, reducing manual data entry and saving hours of employee time while improving accuracy.

Case Study: Modernizing Legacy Workflows in Production & Order Management

Recent Java Case Study

React and Java Development for Auto Damage Detection App

Auto Damage Detection App with Java, React, and AI

"With the new Java and React-based application, up to 50% of claims received are now able to be automatically approved through the application’s AI system. This has significantly impacted the operating costs of those who use the application."
- Successful Project Outcome

View Case Study

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Java Technology Competencies

Technologies and Tools That Our Team Has Used Recently On Projects

At Keyhole Software, our Java consultants bring deep expertise in modern frameworks, libraries, and tools to build scalable, high-performance applications. We stay ahead of industry trends to ensure long-term, maintainable solutions. Here’s a look at the technologies we frequently use in Java development:

Recent Java Project Successes

Case Study: Application Assessment and Modernization for a Large Midwestern Health System

AI-Accelerated COBOL Modernization to Spring Batch

Enhancing and Rewriting Applications for Yellow Corporation

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Recent Java Thought Leadership

At Keyhole Software, we’re not just Java developers; we’re thought leaders driving innovation in Java development. Our team stays ahead of industry trends, exploring emerging technologies and best practices to deliver cutting-edge solutions for our clients. Explore our articles, guides, and videos to learn about the latest advancements in Java, cloud-native applications, microservices, security, and more—ensuring your enterprise stays at the forefront of technology.

Writing Java Code and Unit Tests Faster with GitHub Copilot

How I Built a Developer Digital Twin with Agentic AI (And What It Got Right & Wrong)

Keyhole Named Top Software Development Firm in Kansas City By Clutch

Featured Java Video Insights

In this video, Keyhole CTO Jaime Niswonger breaks down the process of building microservices with Spring Boot, providing step-by-step guidance on everything you need to know before getting started.

Keyhole CTO Jaime Niswonger covers key Java development clean code principles such as consistent naming conventions, proper use of comments, effective error handling, and adherence to design patterns.

In this video, Keyhole Chief Architect Zach Gardner explores the best Java testing frameworks for achieving high-quality software.

Keyhole CTO Jaime Niswonger covers best exception handling practices for using try-catch blocks, defining custom exceptions, and implementing effective logging strategies.

How to Specify & Handle Exceptions in Java

View More Java Expert Insights

Java Development Services

How We Can Help You Develop React Software

At Keyhole Software, we provide expert Java development services designed to meet the unique needs of your business. Having developed Java software every day since our company began in 2008, our team specializes in building scalable, high-performance, and secure Java applications.

Our enterprise Java development services ensure that your business runs on robust, secure, and scalable software solutions. We specialize in building large-scale Java applications using industry-leading frameworks like Spring, Spring Boot, Hibernate, and Java SE & EE (Jakarta EE). From microservices architecture to RESTful API development, we help organizations streamline their operations, enhance performance, and drive growth with Java-based solutions.

Key Technologies:

Spring & Spring Boot: Build high-performance, modular enterprise Java applications.

Microservices: Modernize your software with scalable, independently deployable services.

JPA & Hibernate: Ensure reliable data persistence and object-relational mapping.

REST APIs: Enable seamless data communication with RESTful services.

In today’s fast-paced world, outdated technologies can hold back your business. Keyhole Software specializes in legacy system modernization, helping businesses transition from outdated platforms like COBOL, IBM WebSphere, and EJB to modern, Java-based architectures. We leverage Spring Boot, microservices, and cloud technologies to update and streamline legacy applications, reducing maintenance costs and improving overall performance.

Key Services:

Legacy System Analysis & Modernization: Migrate from older technologies to a flexible, scalable Java platform.

Cloud Integration: Modernize your architecture with cloud services like AWS, Google Cloud, and Azure.

Database Migration: Seamlessly transition your database from legacy systems like DB2 and Oracle to modern solutions such as PostgreSQL, MySQL, and MongoDB.

Our full-stack Java development services empower businesses to create dynamic, feature-rich web and mobile applications. From front-end development with React and TypeScript to back-end development with Spring Boot and Java SE, we build complete, end-to-end solutions tailored to your needs. Whether you need a single-page application (SPA) or a comprehensive enterprise platform, we have the skills and expertise to deliver high-quality software solutions.

Key Technologies:

React & TypeScript: Build responsive and engaging user interfaces.

Spring Boot: Develop robust back-end systems.

Node.js & REST APIs: Connect front-end and back-end systems seamlessly.

GraphQL: Efficiently query data for optimized user experiences.

Our Java performance optimization services help you improve the speed, scalability, and reliability of your Java applications. By implementing best practices, including lazy loading, Ahead-of-Time (AOT) compilation, and microservices architecture, we ensure that your applications are highly performant, maintainable, and future-proof. Our experienced consultants work closely with your team to analyze, optimize, and scale your Java applications.

Key Optimization Areas:

Application Performance Tuning: Optimize code, databases, and application architecture for better speed and reliability.

Scalability: Ensure your Java applications can handle increased demand by leveraging microservices and cloud technologies.

Security: Implement best security practices to protect your Java applications from vulnerabilities.

Whether you're looking to develop custom enterprise solutions, modernize legacy systems, or optimize your existing Java applications, Keyhole Software has the skills and experience to help you achieve your goals.

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"With Keyhole, it’s not like people sitting in straight lines and someone at the front lecturing - they’re sitting down at the table talking with us.

Keyhole helps bridge the knowledge gap between [client]’s staff, whose job is to have a skill set to run the business, and the leading-edge technology Keyhole has exposure to."
- Sr. IT Manager, Global Financial Firm Based In Kansas City

Trusted Partner

Trusted by nationwide clients—from Fortune 100 companies to innovative startups—across diverse industries.

Our commitment to quality keeps clients coming back: 2 out of 3 projects last year were with repeat clients.

We've provided Java solutions to 75+ clients

Here are some frequently asked questions our clients have had about Java services.

See Our Clients

View Our Successes

We offer flexible engagement models to meet your project’s unique needs:

Software Outsourcing
Our project management + software development team builds end-to-end solutions for you.

Dedicated Dev Teams
A fully integrated, dedicated consulting team works continuously on your long-term Java project.

Fractional & Advisory Services
Our senior software leaders provide strategic guidance to drive digital transformation.

Staff Augmentation
Our Java developers and specialized experts join your team to accelerate development.

Whether you need a full team to build a custom Java application, expert consultants to integrate with your existing team, or strategic guidance to modernize a legacy system, our U.S.-based, vetted consultants provide the right expertise at the right time.

Learn More

Java is highly effective for building cloud-native enterprise applications that take advantage of cloud services like AWS, Google Cloud, and Azure. Java applications can leverage Spring Boot to create lightweight, scalable microservices that run in cloud environments. By using containerization tools like Docker and Kubernetes, enterprises can automate deployment and scaling, allowing them to fully harness the benefits of cloud computing.

Java’s Spring Boot and Spring Cloud are widely adopted for building microservices. By leveraging these tools, enterprises can break down complex, monolithic applications into smaller, independent services. Each microservice can be developed, deployed, and scaled independently, improving flexibility, fault isolation, and maintenance.

Additionally, Java’s strong typing, performance, and security features make it an excellent choice for microservice architecture in enterprise environments.

Transform Your Java Enterprise with Keyhole

Let’s build your future-ready Java enterprise architecture. Contact us today to discuss how our Java-based development and modernization strategies can drive efficiency, innovation, and long-term success.

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