{"id":3307711,"url":"https://alion.io/job/techchain-talent-senior-security-engineer-product-infrastructure","title":"Senior Security Engineer, Product & Infrastructure","company":{"id":4476923,"name":"TechChain Talent","domain":"techchaintalent.xyz","url":"https://alion.io/company/tech-chain-talent","size_band":"11-50","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Schema","truth_index":{"grade":"B","score":75,"open_postings":7,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-30T05:48:23Z"}},"role":"Security","role_family":"Security","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":[],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":175000,"max":220000,"currency":"USD","period":"year","gross":null,"usd_annual":220000},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Go","optional":false},{"name":"IAM","optional":false},{"name":"LLM","optional":false},{"name":"Model Context Protocol","optional":false},{"name":"Python","optional":false},{"name":"Rust","optional":false},{"name":"Solana","optional":false},{"name":"Threat Modeling","optional":false},{"name":"TypeScript","optional":false},{"name":"Anchor","optional":true},{"name":"PKI","optional":true},{"name":"Red Teaming","optional":true},{"name":"SOC 2","optional":true}],"status":"live","first_seen_at":"2026-10-22T11:56:53Z","employer_posted_date":"2026-10-22","last_verified_at":"2026-10-30T08:26:13Z","board_verified":true,"closed_at":null,"days_open":8,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":8},"description":"Senior Security Engineer, Product & Infrastructure\nLocation: US or Europe\nSalary: $175K - $220K\nAbout the Company A Solana-native financial infrastructure company building stablecoin-powered products for businesses and individuals, including secure asset management, business treasury accounts, personal finance apps and APIs for the stablecoin economy. About the Role This is a senior, hands-on product and infrastructure security role, working closely with the Head of Security, CTO and engineering leads across the company's product suite and the shared infrastructure beneath it.\nSit in design reviews so security shapes architecture before it is built, rather than reviewing decisions after they are made.\nRead source code, write threat models, and build the tooling and standards that make the secure path the default as engineering grows.\nOwn security for systems where a missed authorization check moves money.\nKey Responsibilities\nJoin product and engineering calls as the security reviewer, raising concerns while designs are still cheap to change.\nLead threat modeling and security design reviews for new products, features and infrastructure changes.\nPerform hands-on secure code review across backend services, APIs, frontends and Solana programs, focused on authn, authz and access control.\nOwn the full lifecycle for findings from audits, pentests, code scanning and bug bounty: triage, prioritisation, remediation tracking and fix verification.\nSet severity and SLA standards and hold the team to them; run bug bounty intake and validate external reports against source.\nTune and extend SAST, dependency, secrets and container scanning in CI/CD so engineers trust the signal.\nReview IAM, network controls, encryption and secrets management across cloud environments, including API key ownership, permissions and rotation.\nAssess what internal AI tools, MCP integrations and agents can reach in production, and scope their access.\nDefine product security standards, review checklists and developer guidance that scale with the team.\nRequirements\n8+ years in product security, application security or security engineering, built on a software engineering foundation.\nOwnership of threat modeling and architecture review for complex financial or distributed systems, with the standing to shape design decisions.\nTrack record of finding critical, non-obvious vulnerabilities in large production codebases (TypeScript, Rust, Go or Python), including via LLM or agent-based review workflows you built and ran.\nBuilt and ran a vulnerability management programme or bug bounty end to end, including the CI/CD scanning (SAST, dependency, secrets, container) that feeds it.\nDeep expertise in IAM, secrets management, network controls and container security on AWS or a comparable provider.\nStrong written communication and the judgement to work independently.\nWhat Great Looks Like\nYou rank findings by what an attacker could actually do, and your write-ups tell engineers exactly what to change.\nYou find business-logic, authorization and race-condition bugs by reading code, and know where scanners go blind.\nYou use LLMs and agents to extend review coverage and know where the models miss.\nYou pick your battles: engineers ship faster with you in the room, not slower.\nNice to Have\nExperience reviewing Solana programs (Rust/Anchor) or working at an audit firm.\nCryptography and key management (HSMs, MPC, PKI).\nOffensive testing across web and mobile, or red teaming AI systems.\nSupporting SOC 2 from the product side.","description_format":"text","description_chars":3528,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-27T02:12:15Z"}],"visa":[],"liveness":{"score":54,"band":"ok","label":"Likely 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