You are confident working independently, contributing to architectural decisions, and mentoring other engineers, while collaborating closely with product, QA and DevOps teams. Experience in payments, fintech or other high‑security environments will be a strong advantage.
The Role
As a Software Engineer II in the 3DS Payments team, you will work on backend services that support secure payment authentication and the handling of sensitive data. The role focuses on developing and maintaining Java‑based services, improving system reliability and performance, and ensuring compliance with security and regulatory requirements.
You will contribute to system design, guide technical decision‑making, and help drive continuous improvement across the codebase and platform.
Responsibilities
Design, develop and maintain backend services within the 3DS Payment’s platform
Build and maintain RESTful APIs and distributed systems
Develop and support Java applications deployed on Apache Tomcat
Design, optimise and maintain MySQL database schemas and queries
Identify and resolve performance, stability and production issues
Contribute to architectural decisions and technical tradeoffs
Ensure systems adhere to secure coding practices and compliance requirements
Collaborate with product, QA and DevOps teams throughout the delivery lifecycle
Mentor and support other engineers within the team
Take ownership of features and services from design through to production
Skills and Experience
Successful candidates for this role will generally possess the following qualifications and skills:
5 years of professional software engineering experience with strong proficiency in Java (Java 11+ required; newer LTS versions a plus).
Experience developing applications running on Apache Tomcat.
Solid experience with MySQL or similar relational databases, including:
Schema design
Query optimisation and indexing
Performance tuning and troubleshooting
Experience building RESTful APIs and working with distributed systems.
Strong understanding of software design principles (OOP, SOLID, clean architecture).
Experience using Git or similar version control systems.
Strong understanding of secure coding practices, including OWASP Top 10.
Experience working in regulated environments (e.g. PCI DSS, GDPR).
Experience handling sensitive data such as cardholder data or PII.
Nice‑to‑have
Experience with AWS (EC2, RDS, S3, IAM, CloudWatch)
Exposure to cloud‑native or cloud‑migrated architectures
Experience with Docker and/or Kubernetes
Familiarity with CI/CD pipelines and DevOps practices
Experience in payments, fintech or other high‑security domains
Personality Attributes
Strong problem‑solving and analytical thinking skills.
Clear and effective communicator with both technical and non‑technical stakeholders.
Comfortable working independently and taking ownership.
Collaborative team player with a pragmatic, delivery‑focused mindset.
Strong attention to quality, security and maintainability.
We place a lot of value on how we treat prospective employees and appreciate the time and effort that goes into job hunting. That is why we aim to keep the hiring process as quick and seamless as possible while ensuring the best possible fit for both you and the company.
Working at Entersekt is truly a dream. You get exposed to cutting-edge technology, colleagues who are leaders in their fields, and an awesome working environment that includes flexible hours, remote work, and plenty of growth opportunities.
Apply for this position by following the "apply now" tab and or viewing our other roles at Entersekt Careers page.
Entersekt is an Equal Opportunity Employer
We are committed to building an inclusive and diverse workforce that reflects the global communities we serve. For all South Africa-based roles, preference will be given to candidates from historically disadvantaged groups, in accordance with local Employment Equity objectives.
