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DEVELOPMENT

API Development & System Integration

Accelerate innovation and connectivity through secure, scalable API development and seamless system integration
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HOME > SERVICES > DEVELOPMENT > API & SYSTEM INTEGRATION

Build Connected Enterprise Systems with Confidence

Modern enterprises rely on connected systems to streamline operations and deliver unified customer experiences. Our API development and integration services help organizations design, connect, and optimize complex ecosystems across cloud, on-premises, and hybrid environments. From custom API architecture to end-to-end integration strategy, we enable faster delivery, stronger data flow, and long-term scalability.

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INTEGRATION CHALLENGES

We Help Enterprises Overcome Complex Integration Barriers

As enterprises expand, systems often become fragmented, creating data silos and operational inefficiencies. Integrating legacy systems, third-party platforms, and emerging technologies can be costly and time-consuming without the right expertise. Improving helps organizations overcome these barriers through modern integration strategies that improve interoperability, performance, and business agility.

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Key Challenges We Solve

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Legacy System Compatibility

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Data Silos & Data Inconsistency

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Poor API Security Controls

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Slow Integration Timelines

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Limited Scalability

WHAT WE BUILD

Comprehensive API & Integration Solutions

Our integration specialists design solutions that unify data, accelerate processes, and improve collaboration across enterprise systems. By leveraging best-in-class API frameworks, middleware, and event-driven architectures, we deliver secure, reliable, and future-ready connections. Whether you’re modernizing your API layer or integrating SaaS applications, our experts ensure every connection drives measurable business value.

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API Strategy & Architecture

Build a strong foundation for scalable integrations with modern API frameworks. We design and document REST, GraphQL, and event-driven APIs tailored to enterprise needs.

  • REST API Design

  • GraphQL Implementation

  • API Gateway Configuration

  • Documentation & Governance

  • And More!

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Can’t Find the Integration You Need?

Let’s discuss your unique environment and build a custom integration strategy aligned with your business goals.

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DELIVERY MODELS

Flexible Delivery Models for Seamless Execution

Our teams adapt to your delivery preferences, providing full-scale development, embedded teams, or managed integration solutions. Whether you need rapid deployment or long-term partnership, we align to your operational model for maximum impact.

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Project-Based Delivery

What We Provide: End-to-end API or integration projects from planning through deployment.

Best For: Businesses needing complete ownership and predictable timelines.

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Managed Development Teams

What We Provide: Dedicated, cross-functional teams managing integration development and support.

Best For: Enterprises seeking continuous evolution and hands-off scalability.

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Staff Augmentation

What We Provide: Skilled integration engineers, architects, and developers who embed directly with your team.

Best For: Organizations needing flexible expertise to accelerate in-house efforts.

OUR APPROACH

Our Proven 5D Integration Methodology

Every API and integration engagement follows Improving’s structured 5D methodology designed to ensure predictable, high-quality delivery. This approach creates transparency, mitigates risk, and provides repeatable success for complex enterprise environments.

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We begin by assessing your current systems, identifying integration gaps, and defining measurable goals. This phase ensures every API or system connection aligns with business priorities and technical feasibility.

Our architects craft secure and scalable blueprints, outlining data flows, governance models, and infrastructure requirements. This design phase establishes a reliable foundation for seamless, future-ready integrations.

Our engineers build, test, and refine APIs and connectors using modern frameworks and best-practice coding standards. We emphasize modular design and documentation to streamline ongoing maintenance.

Before deployment, we rigorously validate performance, security, and interoperability across systems. Each integration is benchmarked to confirm compliance and readiness for real-world usage.

We oversee go-live with zero disruption to business operations and ensure proper monitoring and governance are in place. Post-deployment, our team provides continuous optimization and knowledge transfer for sustained success.

CASE STUDIES

Proven Results with API Development & Integration

Our client solutions showcase how modern integration delivers measurable value. From streamlining enterprise workflows to enabling real-time analytics, we help organizations connect technologies that move business forward.

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Thrivent Enterprise Integration Datastore

Improving partnered with Thrivent to develop the Thrivent Enterprise Integration Datastore (TEID), consolidating data from multiple systems to enhance accessibility, enable real-time updates, and improve user experiences across digital platforms.

Confluent

Kafka

AWS

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Kafka Middleware Modernization & Integration

Westfield Insurance partnered with Improving to modernize their middleware using Confluent Kafka on AWS, enabling scalable data streaming, self-service APIs, and faster development cycles while empowering internal teams through training and automation.

Confluent

AWS

Terraform

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WHY IMPROVING

Why Enterprises Choose Improving for Integration Services

Our team combines deep technical knowledge with decades of enterprise delivery experience. We partner closely with clients to modernize legacy systems, secure integrations, and accelerate digital transformation at scale.

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  • 20+ years of enterprise integration expertise

  • End-to-end delivery from design to deployment

  • Proven frameworks for API governance and security

  • Certified architects across all major cloud platforms

  • Deep experience modernizing legacy system architectures

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Ready to Connect Your Systems?

Talk to our integration experts today to start building faster, more connected enterprise solutions tailored to your environment.

OUR PARTNERS

Strategic Partners That Strengthen Every Integration

Our partnerships with leading technology providers allow us to deliver flexible, secure, and cloud-ready integrations for every business scenario. These collaborations ensure clients benefit from the latest advancements in performance, scalability, and reliability.

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Microsoft

Azure Integration Services, Logic Apps, and API Management help enterprises connect and automate systems across hybrid environments.

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AWS

AWS Lambda, API Gateway, and AppFlow streamline event-driven and serverless integrations at enterprise scale, enabling automation and secure data exchange.

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Confluent

The Confluent Platform enables real-time, event-streaming architectures powered by Apache Kafka for instant data movement and insights.

TECHNOLOGY STACK

Comprehensive Technology Stack for API Development

We are platform-agnostic and adapt to your preferred environment, ensuring the best tools are selected for each project. Our experts deliver integration and API solutions across all major clouds, frameworks, and DevOps ecosystems.

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Integration Frameworks

Apache Camel

Azure Logic Apps

Dell Boomi

MuleSoft

Spring Boot

Workato

WSO2 API Manager

Zapier

RELATED SERVICES

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THOUGHT LEADERSHIP

Explore Insights on Integration and Connectivity

Stay up to date with the latest integration trends, API design practices, and enterprise modernization strategies from Improving’s experts.

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Software Development

Know Your Developer

Know Your Developer (KYD) framework reveals why external and internal developers need different DX strategies.

CONTACT US

Let’s Build Your Next Integration Together

Connect with our team to discuss your goals and challenges. We’ll help you design a solution that strengthens your technology ecosystem and drives measurable business outcomes.

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FAQS

Frequently Asked Questions About API Development & Integration

Learn more about how our API and integration services support secure, efficient, and scalable enterprise connectivity.

We support integrations across cloud, on-premises, and hybrid environments to unify enterprise systems. Our experience spans ERP, CRM, data, and SaaS platforms, helping organizations create connected digital ecosystems. Whether you need to bridge legacy systems or modern applications, we deliver seamless interoperability that drives measurable efficiency.

Our teams implement multi-layered security practices that include authentication, authorization, encryption, and monitoring. We design every API with zero-trust principles to minimize exposure and mitigate risk. Continuous audits and proactive governance ensure compliance with industry standards and long-term protection.

Yes, our experts specialize in re-engineering outdated SOAP or custom integrations into modern, RESTful architectures. We enhance performance, scalability, and maintainability while preserving critical business logic. By modernizing your API layer, we help reduce technical debt and improve long-term agility.

Project timelines depend on complexity, scope, and system readiness. Smaller API implementations can be completed in weeks, while enterprise-scale integrations may take several months. Our iterative delivery model ensures value is realized early and continuously throughout the engagement.