Payment Systems Development Senior Specialist

Gizli; Fatih; On-site; TRY 3,403,000 - 4,861,000; Full time

Job summary

Gizli seeks a Payment Systems Development Senior Specialist to join our head office. You will oversee continuity of sales and payment applications, analyze requirements, and translate them into API specifications and user stories.

You will manage and refine the product backlog, coordinate testing and deployment, and monitor operations. Strong English and 5+ years in the field are required to excel in this role.

Qualifications

• Graduated from university in a relevant field.
• Minimum of 5 years of experience in payments systems.
• Strong knowledge of sales, payment processes, and operations.
• Experience with software applications, testing and deployment.
• Familiarity with API-based architectures and integrations.
• English proficiency—written and spoken.

Responsibilities

• Ensure continuity of sales and payment applications and systems while complying with regulations.
• Analyze business needs and translate into technical requirements and API specs.
• Prioritize and refine the product backlog technically.
• Oversee testing, create scenarios, perform functional tests, and participate in UAT.
• Coordinate testing, training, and production deployment of changes.
• Monitor data entry, service levels, and maintenance processes.
• Regularly audit processes and production performance, driving improvements.
• Support internal and external audits and track action items.

Skills

5+ years of experience

Payments systems knowledge

API integration

Software testing & deployment

Process tracking & problem-solving

Analytical mindset

English proficiency

Education

Computer Engineering

Industrial Engineering

Electronic Engineering

Management Information Systems (MIS)

Mathematics

Job description

As one of the leading companies in the Food & Beverage Services field, we are looking for enthusiastic, dynamic and quality-oriented colleagues to join our innovative, dynamic team for the position of “Payment Systems Development Senior Specialist” located in our Head Office.

General Qualifications:

• Graduated from universities, preferably with a degree in Computer Engineering, Industrial Engineering, Electronic Engineering, Management Information Systems (MIS), or Mathematics
• Minimum of 5 years of experience in the field
• Strong knowledge of sales, payment systems, and operational processes
• Experienced in software applications, testing, and deployment processes
• Knowledgeable in API-based architectures and integration structures
• Preferably has actively participated in AI-based projects
• Strong skills in process tracking, coordination, and problem-solving
• Highly analytical with a continuous improvement mindset
• Advanced level of written and verbal English proficiency

Job Description:

• Ensuring the continuity of applications and systems used in sales and payment processes and managing them in compliance with regulations.
• Analyzing business requirements in detail and translating them into technical requirements, user stories, and API specifications.
• Managing, prioritizing, and technically refining the product backlog.
• Managing testing processes, preparing test scenarios, performing functional manual tests, and taking an active role in user acceptance testing (UAT).
• Coordinating the testing, training, and production deployment processes of software changes.
• Monitoring and regularly reporting data entry, service, and maintenance processes.
• Conducting regular audits of operational processes and field controls, monitoring the performance and stability of applications in the production environment, and developing improvement actions.
• Supporting internal and external audit processes, identifying areas for improvement, and following up on action items.