Senior Security Engineer – Product & Infrastructure

Job not on LinkedIn

🔥 16 minutes ago

🏈 North America – Remote

💵 $175k - $220k / year

⏰ Full Time

🟠 Senior

👮‍♂️ Cybersecurity / Security Engineer

👻 Ghost score 7%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Squads

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2021

💼 Consulting

📦 Logistics

💳 Fintech

Consulting • Logistics • Fintech

Squads is a financial technology company that provides products and APIs for the stablecoin economy, enabling businesses, developers and individuals to save, earn, move and manage tokenized money. Its offerings include Altitude (a global business account), Fuse (a personal finance app for stablecoins and tokenized assets), Grid (a stablecoin API for accounts, payments, cards and yield) and a multisig platform to secure Solana assets. Squads builds on open infrastructure and internet capital markets and operates as a fintech platform (not a bank or custodian).

📋 Description

• Own product and infrastructure security across Squads • Serve as security reviewer in product and engineering calls • Lead threat modeling and security design reviews for products, features, and infrastructure changes • Perform secure code reviews across backend services, APIs, frontends, and Solana programs • Focus reviews on authentication, authorization, and access control • Own the lifecycle of findings from audits, pentests, code scanning, and bug bounty • Triage, prioritize, track remediation, and verify fixes • Set severity and SLA standards and enforce them • Run bug bounty intake and validate external reports against source • Coordinate with audit partners and scope internal assessments • Tune and extend SAST, dependency, secrets, and container scanning in CI/CD • Review IAM, network controls, encryption, and secrets management across cloud environments • Assess access of internal AI tools, MCP integrations, and agents in production • Define product security standards, review checklists, and developer guidance

🎯 Requirements

• 8+ years in product security, application security, or security engineering, built on a software engineering foundation • Ownership of threat modeling and architecture review for complex financial or distributed systems • Track record of finding critical, non-obvious vulnerabilities in large production codebases • Experience with TypeScript, Rust, Go, or Python • Experience with LLM and agent-based review workflows • Experience building and running a vulnerability management program or bug bounty end to end • Experience with CI/CD scanning • Deep expertise in IAM, secrets management, network controls, and container security on AWS or a comparable provider • Strong written communication and ability to work independently • Experience reviewing Solana programs (Rust/Anchor), working at an audit firm, cryptography and key management (HSMs, MPC, PKI), offensive testing across web and mobile, red teaming AI systems, or supporting SOC 2 from the product side is a plus

🏖️ Benefits

• Equity • Remote work in North America or Europe