D

Deloitte

Audits companies and advises on tax and technology

Integration Specialist - Mulesoft/Boomi

Part-TimeUpdated on 10/15/2026
No salary listed
Mid, Senior
Bachelor's, Master's
Zaventem, Belgium
HybridHybrid workplace with a combination of home office and on-site work.
Solution EngineeringImplementation & Technical Account Management

About the job

Requirements
  • Hold a master's or bachelor's degree in IT, Computer Science, or Business.
  • Be fluent in English and fluent in Dutch and/or French.
  • Have extensive proficiency in Microsoft Office software, including Word, PowerPoint, and Excel.
  • Have 3–6 years of experience in some of the listed integration-related areas.
  • Understand integration patterns, approaches, and technologies, including point-to-point and enterprise-level integration scenarios.
  • Be proficient in designing and managing APIs, establishing authentication and authorization mechanisms, and managing the API lifecycle.
  • Have hands-on experience with Enterprise Application Integration technologies, iPaaS tools, and implementing integration solutions, such as MuleSoft, Boomi, or other modern platforms.
  • Have experience with message-oriented middleware and message brokers such as Kafka and RabbitMQ for asynchronous communication and event-driven architectures.
  • Know data formats and protocols such as JSON, XML, CSV, and SOAP, and architecture styles such as REST and WebSocket; be able to transform and map data between formats.
  • Understand security best practices, encryption, token-based authentication, and data privacy compliance requirements such as GDPR and HIPAA.
  • Be able to design and document integration architectures with scalability, fault tolerance, and redundancy in mind.
  • Be able to identify and resolve complex integration challenges, troubleshoot issues, and optimize performance in real-world integration scenarios.
  • Have general knowledge of DevOps tools, encryption and decryption algorithms, and Java libraries and how they can be leveraged within iPaaS solutions.
  • Be able to analyze data, identify security risks, and think critically to solve problems.
  • Know AI trends and how Integration and Automation can leverage AI capabilities for practical use cases and value.
  • Have strong written and verbal communication skills and work effectively in a team environment.
  • Have a proactive attitude toward learning and staying updated with integration trends and technologies.
Responsibilities
  • Support clients in realizing their integration strategy and architecture principles.
  • Participate in creating and implementing roadmaps and projects that enhance clients’ integration capability maturity.
  • Work with senior team members on integration projects, including assessing current integration landscapes, conducting fit-gap analyses, defining target-state strategies and architectures, creating proof of concepts, delivering integration projects, and operating live solutions.
  • Ensure effective execution of project tasks.
  • Engage clients and stakeholders through clear, empathetic, and impactful communication, influencing them and aligning their business process integration goals with industry best practices.
  • Under leadership coordination, participate in designing and implementing integration solutions.
  • Collaborate with stakeholders to analyze business requirements and design integration solutions aligned with organizational strategic goals.
  • Design, develop, and manage APIs, ensuring they are documented, secure, and scalable to facilitate communication between applications and services.
  • Create data mappings and transformations to ensure consistency and compatibility between systems.
  • Test integration solutions against functional and performance requirements, and identify and resolve issues.
  • Monitor and optimize integration solution performance by identifying bottlenecks and implementing improvements to efficiency and response times.
  • Ensure integration solutions comply with data privacy regulations and internal governance policies.
  • Maintain documentation of integration processes, architecture diagrams, data flows, and technical specifications for development teams and stakeholders.

About the company

Deloitte audits companies and advises businesses and governments on tax, technology, and risk, and it is one of the Big Four, the world's four largest accounting firms. In 1849 its founder became the first independent auditor of a public company, Britain's Great Western Railway. Its auditors check companies' financial reports for errors and fraud before investors rely on them, while its consultants design strategy, install business software, and defend clients against cyberattacks. Clients pay fees for each audit or project, and each country's Deloitte firm is a separate business owned by its local partners. Deloitte was founded in London in 1845 and is based in New York.

Company Size

10,001+

Company Stage

Late Stage VC

Total Funding

$17.1M

Headquarters

Madrid, Spain

Founded

1845

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Simplify's Take

What believers are saying

  • Growth keeps hiring going: revenue rose 5.7% to $74.5 billion and staff neared 500,000 in the year to May 2026.
  • AI is part of the job: in October 2025, Deloitte opened the Claude assistant to 470,000 people, Anthropic's largest rollout.
  • Making partner pays off: Deloitte UK's 784 equity partners averaged £1.125 million in profit in the year to May 2026.

What critics are saying

  • Tech consulting is lagging: it grew 2.5% in the year to May 2026, the slowest of Deloitte's four businesses.
  • Back-office benefits are shrinking: Deloitte US will halve parental leave to 8 weeks for internal staff in January 2027.
  • Federal work brings scrutiny: Deloitte agreed to pay $21.5 million in August 2026 over claims diversity targets swayed promotions.

What makes Deloitte unique

  • Deloitte is the biggest Big Four accounting firm: fiscal 2025 revenue of $70.5 billion beat PwC's $56.9 billion.
  • Consulting runs deeper here: Deloitte kept its consultants in 2003 after PwC, EY, and KPMG sold or spun off theirs.
  • Deloitte leads cyber consulting: it took 32% of worldwide security consulting revenue in 2025, research firm Gartner says.

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Benefits

Professional Development Budget

Hybrid Work Options

Company News

Business Insider
Jan 29th, 2026
AI forces companies to rethink hiring practices as job applications surge and entry-level pipelines shrink

Business Insider convened 15 HR and C-suite leaders in Davos to discuss how AI is reshaping hiring and talent pipelines. The roundtable, presented by Indeed, revealed growing concerns about entry-level positions and skills assessment. Deloitte's Elizabeth Faber emphasised maintaining a "human-led, technology-powered" approach whilst carefully navigating reduced junior hiring. TCW's Melissa Stolfi noted her firm has downsized its analyst class but maintains a pyramid structure to preserve apprenticeship culture and future leadership pipelines. Indeed's chief economist Svenja Gudell warned that whilst tech employers now demand five-plus years' experience, this creates future talent shortages if junior hiring continues declining. Salesforce's Nathalie Scardino said her company receives two million applications annually and has shifted focus from years of experience to learning aptitude. Manpower Group's Becky Frankiewicz noted AI can process candidates faster whilst reducing bias, potentially unlocking opportunities beyond traditional qualifications.

Yahoo Finance
Jan 20th, 2026
Deloitte to hire 50,000 employees in India, eyes Mangaluru expansion

Deloitte plans to hire 50,000 employees in India and is evaluating Mangaluru, Karnataka, as a potential new location, according to South Asia CEO Romal Shetty. The company currently employs 140,000 people in India, representing one in four Deloitte employees globally. Shetty said India hosts 50% of all global capability centres worldwide, with significant growth potential in Tier II and Tier III cities. He proposed creating digital economic zones integrating GCCs, GPU-based data centres, startups and academic institutions to accelerate expansion. The CEO called for streamlining GCC setup processes from six months to two weeks, whilst acknowledging infrastructure constraints around energy and water for data centres. Shetty noted Mangaluru offers advantages including talent availability and real estate, adding the company's presence there is a matter of timing.

PR Newswire
Oct 31st, 2025
Deloitte Invests in Kihomac for Drones

Deloitte has invested in Kihomac to enhance U.S. drone manufacturing, aiming to strengthen national security and supply chains. This investment will allow Kihomac, a veteran-owned company, to expand production in Utah and mass-produce drones for U.S. government agencies and businesses. Deloitte's support will create manufacturing jobs and secure the supply chain for American customers.

La Tercera
Jul 14th, 2025
Deloitte Acquires Virtus Partners in Chile

Deloitte has acquired 100% of Virtus Partners, founded by Gonzalo and Marcelo Larraguibel, to enhance its strategic consulting business in Chile. This acquisition aims to offer comprehensive solutions from strategy design to execution. Deloitte's CEO, Christian Durán, emphasized the significance of this move in strengthening their market position. The merger combines Deloitte's global capabilities with Virtus Partners' local expertise, offering a unique strategic consulting platform in Chile.

Yahoo Finance
Jul 4th, 2025
Deloitte Canada Acquires Fintech Firm Allevar

Deloitte Canada has acquired Toronto-based fintech firm Allevar, enhancing its capabilities in regulatory compliance and technology solutions. Allevar specializes in fraud management, AML, payment systems, and KYC regulations, crucial for Canadian banks and the financial services industry. Allevar's leadership, including CEO Dan Wood, will join Deloitte's Regulatory Risk practice. This acquisition aligns with Deloitte's strategy for growth in the digital and AI age.