Quess Singapore
Back End Developer
Quess SingaporeSingapore6 days ago
ContractInformation Technology

1 yr renewable contract'

Salary: Up to SGD 9700 SGD


Key Responsibilities

  • Lead the design and development of backend systems for international payment gateway integrations (e.g., Visa, Mastercard, Amex, UPI).
  • Architect and implement secure, scalable app features for payment authorization, settlement, and onboarding.
  • Drive migration and implementation projects on Linux RHEL or Cloud, replacing legacy systems.
  • Develop secure and scalable application for payment authorization, settlement, and onboarding processes.
  • Collaborate with cross-functional teams including QA, frontend, and business stakeholders to deliver robust solutions.
  • Ensure compliance with PCI-DSS, other payment security standards and international card scheme mandates.
  • Optimize performance and reliability of switching systems and backend services.
  • Provide technical leadership and mentorship to junior developers and support teams.
  • Document system architecture, integration flows, and technical specifications.


Requirements

Education and Experience

  • Bachelor’s degree in computer science, Software Engineering, or related field.
  • 12+ years of experience in backend development, with a strong focus on payment systems and switching platforms.


Skills and Knowledge

  • Proficiency in C++, Korn Shell Script, and Linux-based development.
  • Strong experience with Base24-eps, Visa/Mastercard compliance, and QR integration.
  • Hands-on experience with PostgreSQL/MySQL and IBM MQ upgrades.
  • Familiarity with Open System RHEL, POS/EDC, and ATM configurations.
  • Excellent problem-solving skills and ability to manage production issues effectively.
  • Strong communication skills and ability to work collaboratively across teams.

Kshama

Registration No. / Unique Entity Number: 199801439D


Disclaimer: The company is committed to ensuring the privacy and security of your information. By submitting this form, you consent to the collection, processing, and retention of the information you provide. The data collected (which may include your contact details, educational background, work experience and skills) will be used solely for the purpose of evaluating your qualifications for the position you're applying for. Your data will be stored securely and retained for the duration necessary to fulfill our hiring process. If you are not selected for the position, your data will be kept on file for a limited period in case future opportunities arise. You have the right to access, correct, or delete your data at any time by contacting us at Quess Singapore | A Leading Staffing Services Provider in Singapore (quesscorp.sg)


“This is in partnership with the Employment and Employability Institute Pte Ltd (“e2i”).

e2i is the empowering network for workers and employers seeking employment and employability solutions. e2i serves as a bridge between workers and employers, connecting with workers to offer job security through job-matching, career guidance and skills upgrading services, and partnering employers to address their manpower needs through recruitment, training, and job redesign solutions. e2i is a tripartite initiative of the National Trades Union Congress set up to support nation-wide manpower and skills upgrading initiatives. By applying for this role, you consent to Quesscorp Singapore’s PDPA and e2i’s PDPA.”

Key Skills

Ranked by relevance