Senior Product Developer, B2B Payments & APIs

Mastercard; Blackrock; On-site; EUR 90,000 - 120,000; Full time

Job summary

Mastercard is seeking a Senior Specialist, Product Development for the SME team to drive B2B payments capabilities from concept through market validation.

You will convert validated concepts into clear product requirements, partner with Engineering and Architecture on API-first solutions, and support the Director and Product Management team to prioritise features, manage delivery, and enhance platform functionality.

Qualifications

• Requires a relevant bachelor's degree with preference for experience in B2B payments and ERP integrations.
• Proven experience in product development or technical product management.
• Technical fluency: ability to define APIs, data flows and integration requirements.
• Experience writing epics, user stories, and acceptance criteria, including non-functional requirements such as security, performance and scalability.
• Strong ability to understand customer needs and translate them into customer-centric products.
• Excellent research and analytical skills to turn insights into product improvements.
• Proficient with Aha!, Jira, Confluence, and Figma.
• Excellent communication and interpersonal skills across the organisation.

Responsibilities

• Define, prioritise, and deliver platform capabilities with cross-functional teams.
• Translate problems and opportunities into epics, features, and user stories with acceptance criteria.
• Own backlog management and ensure clear requirements and dependencies.
• Design scalable platform capabilities, APIs and data models with engineering teams.
• Collaborate across the software development lifecycle from planning to production rollout.
• Work with internal and external providers to define integration requirements.
• Measure feature adoption and platform performance to drive improvements.
• Maintain release documentation and provide updates to stakeholders.

Skills

B2B payments

ERP integration

Product management

API design

User stories

Security requirements

Performance scalability

Data modeling

Stakeholder management

Communication

Education

Bachelor's degree

Tools

Aha!

Jira

Confluence

Figma

Job description

Mastercard is seeking a Senior Specialist, Product Development for the SME team to drive B2B payments capabilities from concept through market validation.

You will convert validated concepts into clear product requirements, partner with Engineering and Architecture on API-first solutions, and support the Director and Product Management team to prioritise features, manage delivery, and enhance platform functionality.