Senior Software Engineer: Authentication Advice

entersekt

Fully Remote, South Africa · Fully Remote · South Africa

Posted Dec 22, 2025

Other
Remote
Advice & Intelligence

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Job description

Why Entersekt

Founded over 16 years ago, with more recent investments from Accel-KKR, Entersekt is a leader in digital banking fraud prevention and payment security, including mobile authentication, mobile app security, and 3D Secure authentication for issuers, acquirers and payment networks. We offer highly scalable products with a track record of success across multiple continents.

Entersekt enables secure digital transactions for leading financial institutions globally. We exist to create a world where everyone can transact digitally without fear or compromise. Currently, we protect the digital transactions of over 210 million active users on our platform and hold 120 active patents that recognize innovation in digital security, payments, and user experience. Entersekt offers customers secure authentication and digital payments experiences that remove unnecessary friction. Entersekt has a diverse product portfolio and aggressive roadmap that positions the company well to sustain competitive advantage as it expands globally with emphasis on North America and European markets.

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.

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.