Software Engineer
Founded in 2014, Circles is a global technology company reimagining the telco industry with its innovative SaaS platform, empowering telco operators worldwide to effortlessly launch innovative digital brands or refresh existing ones,
Founded in 2014, Circles is a global technology company reimagining the telco industry with its innovative SaaS platform, empowering telco operators worldwide to effortlessly launch innovative digital brands or refresh existing ones, accelerating their transformation into techcos.
Today, Circles partners with leading telco operators across multiple countries and continents, including KDDI Corporation, Etisalat Group (e&), AT&T, and Telkomsel, creating blueprints for future telco and digital experiences enjoyed by millions of consumers globally.
Besides its SaaS business, Circles operates three other distinct businesses:
Circles is backed by renowned global investors, including Peak XV Partners (formerly Sequoia), Warburg Pincus, Founders Fund, and EDBI (the investment arm of the Singapore Economic Development Board), with a track record of backing industry challengers.
Security Engineer
Department:
Information Security
Reports To: Head of Security Engineering
Experience: 4–6 Years
Type: Individual Contributor (IC)
Location - Bangalore
Role Summary
We're looking for a hands-on Security Engineer to strengthen our security posture across applications, APIs, and cloud infrastructure. This IC role focuses on secure architecture support, application security testing, and penetration testing, with the automation skills to scale security work — partnering closely with Engineering and DevOps to embed security throughout the SDLC.
Key Responsibilities
Secure Architecture & Threat Modeling
Support threat modeling sessions (STRIDE, PASTA, or equivalent) for new applications, features, and platform changes, under guidance from senior security staff
Conduct security architecture reviews for applications, APIs, and cloud services
Apply and help document secure design patterns; provide security input during design and development
Application & API Security
Posted July 31, 2026