Senior Software Engineer: Authentication Advice

The Ideal Candidate

We are seeking a passionate software engineer who thrives on designing and implementing high-performance systems. You will be part of our Authentication Advice team, part of the Advice & Intelligence POD, working on cutting-edge technologies to process vast amounts of data and provide secure, real-time insights and advice.

If you are excited about cloud technologies such as AWS, designing high-performance scalable systems, and enjoy working in an agile environment while solving complex problems, you will be a great fit for this strategic role.

The Role

As a Senior Software Engineer, you will play a pivotal role in building and enhancing products developed by the Authentication Advice team, which are crucial to Entersekt’s innovation pipeline. This team is responsible for processing requests reliably and at scale to improve the accuracy and efficiency of our risk assessment, authentication advice, and fraud detection systems.

You will take part in the development of secure, scalable microservices and influence technical direction, best practices, architecture, and design. You will assist the team lead and mentor junior team members and quality assurance engineers while collaborating closely with our cloud-based infrastructure team to build solutions that process and analyse transactions in real time, providing our clients with accurate risk assessments and guidance on effective authentication policies.

Responsibilities

• Develop, test, and maintain robust, scalable microservices that process large volumes of requests in real time.
• Assist in the design of new features, ensuring high-performance and secure implementations.
• Mentor and guide junior engineers in delivering high quality products.
• Collaborate with cross-functional teams to define and implement innovative, data-driven solutions.
• Work closely with DevOps to ensure smooth deployment and scaling of microservices in cloud environments (AWS).
• Drive architectural improvements for high-performance, fault-tolerant systems.

Skills and Experience

Successful candidates for this role will generally possess the following qualifications and skills:

• 5+ years of experience with general-purpose programming languages such as Java, Python, or Golang. Golang experience is preferred.
• Proven track record of mentoring junior team members.
• Experience with cloud platforms, particularly AWS. Familiarity with key AWS services such as EKS, Aurora, Lambda, S3 and API Gateway, and experience deploying and managing applications in cloud environments.
• Experience with containerisation and orchestration technologies, such as Docker, Kubernetes, and Helm, for managing microservices-based architectures.
• A strong understanding of software architecture, with experience building and scaling microservices for high-performance environments.
• Familiarity with security best practices, including knowledge of cryptography, public key infrastructure (PKI), and secure system design.
• Experience with automated testing, including unit, integration, and performance tests, to ensure software quality and stability.
• Agile experience: familiarity with Scrum or Kanban methodologies, contributing effectively in cross-functional agile teams.
• A bachelor’s degree in Computer Science, Engineering, or a related field is preferred, though relevant experience is highly valued.

Personality Attributes

• Strong problem-solving skills and a passion for finding creative solutions.
• Excellent communication skills, with the ability to explain complex concepts to both technical and non-technical audiences.
• A collaborative mindset and willingness to work as part of a cross-functional team.
• A drive for innovation, always looking to improve products and processes.
• Pride in delivering high-quality, secure, and efficient code.

View all current vacancies at Entersekt →

1. Read the full job description and requirements on this page carefully before applying — tailor your application to what the employer actually asks for.
2. Update your CV and save it as a PDF. Make sure your contact details, most recent experience and qualifications are easy to find.
3. Click the apply button on this page to complete your application on Entersekt's own careers site. The employer manages the shortlisting process directly.
4. Have certified copies of your ID and qualifications ready. Many South African employers request them once you are shortlisted.
5. Applications close on 19 August 2026. Submit well before the deadline — late applications are normally not considered.
6. Keep a record of what you submitted and when. If you have not heard back within a few weeks of the closing date, it is acceptable to follow up politely.

If Entersekt shortlists you for the Senior Software Engineer: Authentication Advice position, preparation makes the difference. Work through these steps:

• Research Entersekt before the interview — look for their official website, social profiles and any recent news. Interviewers expect you to know why you want to work there specifically.
• Go through the job description above and prepare a specific example from your own experience for each of the main duties. Most interview questions will be drawn from what the advert emphasises.
• Structure your answers with the STAR method — Situation, Task, Action, Result. Concrete stories with measurable outcomes are far stronger than general claims about your abilities.
• Prepare two or three thoughtful questions to ask the panel — about the team, how success is measured in the role, or growth opportunities. It signals genuine interest.
• Plan your logistics early. Confirm whether the interview is in person in Fully Remote or online, and arrive or log in at least ten minutes early.