[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All ArcelorMittal jobs](https://jobs.opennash.com/companies/arcelormittal/) · [Search jobs](/search/) ArcelorMittal · Paris, France, DE, ILE # Senior Solutions Architect for ArcelorMittal Group Treasury Paris, France, DE, ILE Senior individual contributor Finance & Accounting Listed on ArcelorMittal’s official careers site. Posted September 24, 2026. Check that it is still open and apply there. [Apply on ArcelorMittal’s careers site →](https://emfg.fa.em4.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CX_4001/job/41686) [OpenNash Jobs](https://jobs.opennash.com/) / [ArcelorMittal](https://jobs.opennash.com/companies/arcelormittal/) / Senior Solutions Architect for ArcelorMittal Group Treasury ## Job description ### Responsabilities Support the department manager in defining and implementing the Information Systems strategy. Review the current architecture and define the target architecture for software solutions and infrastructure in alignment with the company's overall strategy. Drive continuous improvement of the production environment's stability by working closely with stakeholders to configure, maintain, and monitor applications while meeting system availability objectives. Interact with business users on day-to-day operational issues and collaborate with the Treasury Projects team on new developments. Establish development standards and engineering best practices, ensuring their adoption by delivery teams. Mentor, coach, and guide developers and junior architects throughout the project lifecycle. Integrate security requirements (Cybersecurity, GDPR) from the design phase onward ("Security by Design"). Map existing legacy systems and design migration roadmaps toward new solutions. Simplify and communicate complex technical concepts to business management and stakeholders. ### Candidate Profile A multidisciplinary expertise combined with a high level of autonomy is essential. Engineering degree or Master's degree (Master's level) in Computer Science or a related field. Minimum of 8 to 10 years of experience in software development and solution design, including at least 4 years as a Solutions Architect. More than 5 years of experience in the technical management of a cash management and/or capital markets solution is required, along with a solid understanding of business processes (financial transaction lifecycle through payment generation and accounting). Knowledge of one or more of the following solutions would be considered a strong advantage: KTP (Finastra), TRAX (FIS), Calypso (NASDAQ), Diapason. Previous experience in the FinTech sector, with a Treasury Management System (TMS) software vendor, or within the Financial IT department of a large multinational organization is highly desirable ### Required Skills Deep expertise in Java (recent versions), the Spring Boot framework (Spring Data, Spring Security), and containerization on Microsoft Azure (AKS, Azure Functions, API Management). Excellent knowledge of Oracle databases (SQL, PL/SQL, advanced optimization of complex queries, and real-time transactional data processing). Strong understanding of DevOps practices, CI/CD pipelines, and container technologies (Docker, Kubernetes). Proven experience designing microservices, event-driven architectures (Service Bus/Kafka), and secure APIs. Development and architecture experience in a complex financial environment, with knowledge of FX derivatives, commodities, and interest-rate derivatives products. Good understanding of corporate treasury operations, financial messaging standards (ISO 20022, MT/MX), and banking connectivity. Solid experience in designing and building business-oriented reporting solutions. Professional Qualities Excellent written and verbal communication skills in both French and English. Strong analytical mindset and a problem-solving approach to complex challenges. Strategic vision combined with strong pragmatic attention to detail. Ability to build relationships at all levels of the organization, influence functional teams, and work effectively across multicultural environments. Strong teamwork and collaboration skills with business and customer service orientation. Demonstrated ability to engage delivery teams and communicate complex architectural topics in a clear and accessible manner to Finance leadership. ## At a glance - Posted by the employer: Sep 24, 2026 - First seen by OpenNash: Oct 19, 2026 - Last checked: Oct 19, 2026 - Listed for: 25 days - Location: Paris, France, DE, ILE[Apply on ArcelorMittal’s careers site →](https://emfg.fa.em4.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CX_4001/job/41686) ## More jobs at ArcelorMittal ### [Commodity Trader](https://jobs.opennash.com/companies/arcelormittal/jobs/1046a85bc033023c2c25/) Paris, France, DE, ILE ### [Senior Energy Trader](https://jobs.opennash.com/companies/arcelormittal/jobs/85f62aac74c329ad375c/) Paris, France, DE, ILE ### [Senior FX Traders](https://jobs.opennash.com/companies/arcelormittal/jobs/b7fd72893dfa08a980e2/) Paris, France, DE, ILE ### [Senior Legal Counsel - Group Funding/Treasury](https://jobs.opennash.com/companies/arcelormittal/jobs/73aeca3598ab7f7688d2/) Paris, France, DE, ILE ### [Buyer Industrial Gases](https://jobs.opennash.com/companies/arcelormittal/jobs/141267baff455e1c1bb7/) Paris, France, DE, ILE ## Similar jobs at other companies ### [Principal Architect, Solutions Architect - Client Solutions](https://jobs.opennash.com/companies/jpmorganchase/jobs/795d6e8af87d53f7430b/) JPMorganChase · LONDON, United Kingdom ### [UHNW Solutions Group Specialist](https://jobs.opennash.com/companies/hsbc-holdings/jobs/775fd45bdc99bffba263/) HSBC Holdings · Singapore ### [Solutions Architect, Enterprise – Wide Solutions, Hybrid](https://jobs.opennash.com/companies/citigroup/jobs/9ae0c602a60585c4ceb2/) Citigroup · Mississauga Ontario Canada ### [Solutions Architect](https://jobs.opennash.com/companies/ntt/jobs/3b5825b5a4e6d9106c2b/) NTT · Bangkok, Thailand ### [Senior Security Solutions Architect](https://jobs.opennash.com/companies/ntt/jobs/3d44953857fe06523bdf/) NTT · Taiwan OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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