Job description

About the Company

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. 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.

💪🏻 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 infra 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 modelled, to verifying they hold in practice.

What you'll do

Verify that infra 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, JIT access, session recording.
Write and tune detection rules in OpenSearch SIEM.
Build evidence dashboards that prove security posture to non-security leadership 7. 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 org < 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.

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