Security Engineer

At Delta, we are re-imagining and re-building the financial system. Join our team to make a positive impact on the future of finance.

🎯 Mission Driven: Re-imagine and re-build the future of finance.

💡 Most innovative cryptocurrency derivatives exchange. With a daily traded volume of ~$0.5 billion, and increasing. Delta is bigger than all the Indian crypto exchanges combined.

📈 Offer the widest range of derivative products and have been serving traders all over the globe since 2018 and growing fast.

💪🏻 The founding team is comprised of IIT and ISB graduates. Business co-founders have previously worked with Citibank, UBS, and GIC; and our tech co-founder is a serial entrepreneur who previously co-founded TinyOwl and Housing.com.

💰 Funded by top crypto funds (Sino Global Capital, CoinFund, Gumi Cryptos) and crypto projects (Aave and Kyber Network).

About the Role

You'll be the dedicated security engineer at a derivative exchange (~250 people, 50-100 person dev team). All infrastructure is AWS. DevOps builds it; you make sure it's secure and can prove it. You'll be hands-on — reviewing Terraform PRs for security gaps, building automated drift detection, writing SIEM rules, and owning the credential lifecycle. When the CTO asks, 'Are we secure?' you pull up a dashboard, not a slide deck. You own the security posture of the infrastructure from shaping how access and controls are modeled, to verifying they hold in practice.

What You'll Do

• Verify that infrastructure implementations match the security model — continuously, not quarterly.
• Build automated compliance checks and drift detection (AWS Config, Steampipe, custom tooling, whatever works).
• Review Terraform PRs for IAM, SCP, and network security gaps before they hit production.
• Own credential lifecycle: rotation, PAM, just-in-time (JIT) access, session recording.
• Write and tune detection rules in OpenSearch SIEM.
• Build evidence dashboards that prove security posture to non-security leadership.
• Evaluate security tooling (build vs buy) and own the recommendation with documented tradeoffs.

Must-Haves

• 5+ years in infrastructure or security engineering, with at least 2 years focused on AWS security.
• IAM beyond basic roles — you understand policy evaluation logic, permission boundaries, cross-account access patterns.
• Have built automated security checks that run in production (any tooling).
• Can read and critically review Terraform for security posture.
• Have operated PAM tooling or credential rotation in production (any tool).
• Comfortable owning a security domain end-to-end without constant direction.

Strong Advantages

• Worked at an organization < 500 people where you were one of the very few (or the only) security engineers.
• Multi-account AWS Organizations / SCP experience. Wrote SIEM detection rules in production (any platform — OpenSearch, Splunk, Elastic, etc.).
• Regulated fintech, exchange, or payments background.
• Built security evidence/reporting that non-security people actually used.