API Integration Engineer II — Cloud, APIs & Tools

Deloitte France; Kansas City (MO); On-site; USD 87,000 - 171,000; Full time

Job summary

Deloitte is seeking an Integration Engineer II with API development and integration tool experience to join our AI & Engineering team in a global delivery model. You will design and implement scalable Azure-based solutions, APIs, and data integrations across on‑prem and cloud environments, collaborating with cross‑functional teams and vendors.

You will apply strong programming and integration skills to deliver end‑to‑end systems, ensure security and performance, and guide junior engineers while

Qualifications

• Bachelor's degree in computer science, software engineering, information technology or related field.
• 4+ years of hands-on experience with one or more modern programming languages (e.g., Python, JavaScript/TypeScript) for building backend services and APIs
• Proven experience designing and implementing integration solutions connecting disparate systems, applications, and data sources across on-premises and cloud environments
• Strong understanding of integration patterns and architectural styles (e.g., point-to-point, hub-and-spoke, event-driven, pub/sub, ESB, iPaaS)
• Hands-on experience with API design and development, including RESTful services, SOAP, and/or GraphQL
• Working knowledge of API security standards and protocols (OAuth2, JWT, SAML, API keys) and best practices for versioning, throttling, and error handling
• Experience with enterprise integration platforms/tools (e.g., MuleSoft, Apigee, Kong, Workato, BizTalk, Boomi, or equivalent)
• Experience with at least one major cloud platform (Azure, AWS, or GCP), including cloud-native architecture and deployment practices
• Solid understanding of data mapping, transformation, and orchestration techniques across heterogeneous systems
• Experience managing the full software development lifecycle (SDLC), including CI/CD pipelines, testing strategies, and deployment across multiple environments (Dev, Test, UAT, Production)
• Strong analytical and troubleshooting skills, with the ability to diagnose and resolve complex integration and performance issues
• Excellent communication skills, with the ability to translate business requirements into technical solutions and explain them to both technical and non-technical stakeholders
• Demonstrated ability to create clear technical documentation, including architecture diagrams, specifications, and data mapping references
• Experience leading or mentoring junior developers, with a collaborative approach to working across cross-functional teams
• Strong project ownership mindset, with the ability to manage priorities, timelines, and stakeholder expectations independently
• Ability to travel up to 50% of the time, based on the work you do and the clients and industries/sectors you serve.
• Limited immigration sponsorship may be available.

Responsibilities

• Design end-to-end system architecture spanning frontend, backend, integration layers, and cloud infrastructure, translating requirements into scalable Azure-based solutions
• Define technical standards, Integration design patterns, and best practices to guide the development team
• Create and maintain architecture diagrams, technical specifications, and design documents, including data mapping and configuration details
• Build backend services and APIs using Python (e.g., FastAPI, Django, Flask), Javascript, Azure, Typescript or using enterprise integration tools like MuleSoft , Apigee, Kong, Workato, BizTalk. MUST have recent, hands-on experience with at least two of these tools.
• Design, build, and integrate RESTful APIs - connecting third‑party and internal systems for reliable, consistent data exchange
• Implement API security (OAuth2, JWT, API keys), versioning, rate limiting, and robust error handling
• Manage the full software development lifecycle (SDLC), including developing, testing, and deploying integration processes across Test, UAT, and Production environments
• Monitor integration performance, proactively troubleshoot issues, and provide expert-level post-deployment support
• Collaborate with cross-functional teams to optimize data flows and ensure adherence to integration best practices
• Take ownership of assigned projects, manage stakeholder expectations, and mentor junior team members toward successful delivery

Skills

API design

Analytical skills

Communication skills

Project ownership

Travel up to 50%

Education

Bachelor's degree in computer science or related field

Tools

MuleSoft

Apigee

Kong

Workato

BizTalk

Boomi

Azure

AWS

GCP

Job description

Deloitte is seeking an Integration Engineer II with API development and integration tool experience to join our AI & Engineering team in a global delivery model. You will design and implement scalable Azure-based solutions, APIs, and data integrations across on‑prem and cloud environments, collaborating with cross‑functional teams and vendors.

You will apply strong programming and integration skills to deliver end‑to‑end systems, ensure security and performance, and guide junior engineers while