Senior/Staff Security Engineer

Jobgether • Greater São Paulo Area

Remote

This Job is No Longer Active This position is no longer accepting applications

AI Summary

Jobgether is seeking a Senior/Staff Security Engineer to define and build the security posture of a fast-scaling AI-driven risk decisioning platform. This role combines hands-on engineering with strategic security architecture, shaping how authentication, authorization, and multi-tenant protections are designed from the ground up. The ideal candidate will have strong hands-on experience with secure code review, authentication and authorization systems, and cloud security.

Key Highlights

Define and build the security posture of a fast-scaling AI-driven risk decisioning platform

Combine hands-on engineering with strategic security architecture

Shape how authentication, authorization, and multi-tenant protections are designed from the ground up

Key Responsibilities

Own threat modeling across core platform APIs, event ingestion systems, and AI/agent-based products

Design and implement authentication and authorization systems

Build and scale the application security program

Develop and enforce secure-by-design patterns across engineering teams

Define and implement guardrails for LLM and AI systems

Lead vulnerability management, security incident response, and responsible disclosure workflows

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Technical Skills Required

Java Python Authentication and authorization systems (SSO, SAML, OAuth2, JWT, mTLS, JOSE) Cloud security (AWS IAM, KMS, Secrets Manager, VPC) Containerized environments (Kubernetes) PII protection, tokenization, and secure data handling practices

Benefits & Perks

Competitive CLT compensation package

Stock options

Comprehensive healthcare and dental coverage

Life insurance and disability coverage

Monthly meal allowance

Fully remote-first work culture

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Nice to Have

Experience with SOC2/PCI/ISO27001 audits

SAST tuning (Semgrep/CodeQL)

Bug bounty programs

Security certifications (OSCP, CISSP)

Job Description

This is a foundational security engineering role where you will define and build the security posture of a fast-scaling AI-driven risk decisioning platform. You will be the first dedicated security hire, owning product security across APIs, infrastructure, and emerging LLM-based systems. The role combines hands-on engineering with strategic security architecture, shaping how authentication, authorization, and multi-tenant protections are designed from the ground up. You will play a key role in embedding security into the development lifecycle rather than applying it after the fact. The environment is highly technical, fast-moving, and deeply collaborative, working alongside experienced engineers building systems that process sensitive financial and behavioral data. This position offers high autonomy, strong ownership, and direct impact on the safety and trustworthiness of modern digital finance.

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