Senior Product Security Engineer

About Us

slice the way you bank

slices purpose is to make the world better at using money and time, with a major focus on building the best consumer experience for your money. Weve all felt how slow, confusing, and complicated banking can be. So, were reimagining it. Were building every product from scratch to be fast, transparent, and feel good, because we believe that the best products transcend demographics, like how great music touches most of us.

Our cornerstone products and services: slice savings account, slice UPI credit card, slice UPI, slice UPI ATMs, slice fixed deposits, slice borrow, and UPI-powered bank branch are designed to be simple, rewarding, and completely in your control. At slice, youll get to build things youd use yourself and shape the future of banking in India. We tailor our working experience with the belief that the present moment is the only real thing in life. And we have harmony in the present the most when we feel happy and successful together.

Were backed by some of the worlds leading investors, including Tiger Global, Insight Partners, Advent International, Blume Ventures, and Gunosy Capital.

About the role

As a Senior Product Security Engineer at slice, you will play a key role in securing our mobile-first fintech products and APIs. You will work closely with engineering and product teams to embed security into the entire product lifecycle and ensure our systems are resilient against real-world attacks.

You will be responsible for identifying risks, driving secure design practices, and building scalable security solutions across applications and services. The ideal candidate is a self-driven security professional who can operate independently, influence stakeholders, and thrive in a fast-paced environment.

What You will do

Conduct security assessments across mobile (Android/iOS), web applications, and APIs

Perform threat modeling and security architecture reviews for new and existing features

Identify and exploit business logic vulnerabilities, especially in fintech/payment flows

Perform secure code reviews across services (Java, Go, Node, Python)

Drive secure design practices in microservices-based architecture

Build and improve security automation in CI/CD pipelines

Perform mobile security testing, including reverse engineering and runtime analysis

Conduct CVE/zero-day impact analysis and drive remediation

Collaborate with developers to triage and fix vulnerabilities

Handle bug bounty submissions and external vulnerability reports

Monitor and triage alerts from security tools (SIEM, CSPM, DLP, etc.)

Provide security advisory and consultation to product and engineering teams

Support compliance requirements (PCI-DSS, ISO 27001, RBI guidelines)

What you will need

57 years of experience in Product Security / Application Security

Strong expertise in Mobile Security (Android/iOS), API Security, and Web Security covering OWASP Top 10 & Mobile Top 10

Hands-on experience with tools like Burp-Suite, Frida, Jadx, Apktool, Ghidra and other application security tools.

Strong understanding of:

1. Rooting (Android) and Jailbreaking (iOS) and their security implications
2. Bypassing root/jailbreak detection mechanisms
3. SSL pinning bypass techniques
4. Secure storage mechanisms (Android Keystore / iOS Keychain)
5. Runtime attacks and dynamic analysis

Experience with threat modeling and secure architecture reviews

Hands-on experience in secure code review

Understanding of microservices security architecture

Experience in security automation and DevSecOps practices

Experience with AWS cloud security and misconfigurations

Basic knowledge of Kubernetes and container security

Understanding of network, endpoint, and infra security concepts

Experience in CVE analysis and zero-day impact assessment

Exposure to AI/ML security risks and architecture reviews

Good to have experience in fintech or banking domain

Soft Skills

Strong communication and stakeholder management

Ability to work independently with high ownership

Strong problem-solving and analytical thinking

Collaborative mindset with developer-first approach

Life at slice

Life so good, youd think were kidding:

• Competitive salaries. Period.
• An extensive medical insurance that looks out for our employees & their dependents. Well love you and take care of you, our promise.
• Flexible working hours. Just dont call us at 3AM, we like our sleep schedule.
• Tailored vacation & leave policies so that you enjoy every important moment in your life.
• A reward system that celebrates hard work and milestones throughout the year. Expect a gift coming your way anytime you kill it here.
• Learning and upskilling opportunities. Seriously, not kidding.
• Good food, games, and a cool office to make you feel like home. An environment so good, youll forget the term colleagues cant be your friends.