Overview

Join to apply for the Senior Backend Developer role at TieTalent.

Responsibilities

• Lead the design and development of the core backend architecture, including the API gateway, transaction management layer, and merchant management layer.
• Select and implement appropriate technologies from our stack, which includes Python, Node.js, or Java for programming languages; Django, Express.js, or Spring Boot for frameworks; and PostgreSQL or MySQL for transactional data, with Redis for caching and session management.
• Design and implement robust security measures, including AES-256 encryption for sensitive data, TLS for secure communication, and OAuth/JWT for authentication and authorisation.
• Ensure the platform is compliant with PCI-DSS, GDPR, and other relevant data protection regulations.
• Integrate multiple payment gateways (Capital Pay, Stripe, Paypal, Barclaycard, Adyen, Worldpay) using provided SDKs/APIs.
• Implement advanced fraud detection and anti-money laundering (AML) systems.
• Develop and maintain RESTful APIs for seamless communication with the frontend and external systems.
• Implement features for transaction tracking and status management (pending, completed, failed), refund and chargeback handling, and payment settlement (funds transfer to merchant accounts).
• Participate in architectural design discussions, code reviews, and technical mentoring.
• Contribute to the development of a developer-friendly API and comprehensive documentation.
• Set up and manage cloud infrastructure on AWS, Google Cloud, or Azure.
• Implement and manage continuous integration and continuous delivery (CI/CD) pipelines to automate software builds and deployments.

Requirements

• Has a proven track record of 6+ years in backend development, with significant experience in the FinTech or financial services sector.
• Possesses deep expertise in building scalable and secure backend services.
• Is proficient in at least one of the specified programming languages (Python, Node.js, Kotlin or Java) and their associated frameworks.
• Has strong experience with database design and management, including both SQL (PostgreSQL or MySQL) and potentially NoSQL databases.
• Has hands-on experience with RESTful API design and microservices architecture.
• Demonstrates a strong understanding of security best practices and compliance standards like PCI-DSS and GDPR.
• Has experience integrating with third-party APIs, particularly payment gateways.
• Has experience in NFC/RFID technology and Payment Networks integrations.
• Is adept at problem-solving, has excellent attention to detail, and can work effectively in a fast-paced, agile environment.
• Familiarity with serverless architecture is beneficial.
• Experience with messaging systems like RabbitMQ or Kafka is a plus.
• Experience implementing two-factor authentication (2FA) for user logins.
• Experience with performance optimisation for high-traffic scenarios and a large number of concurrent users.

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Engineering and Information Technology
• Industries
• Technology, Information and Internet

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