Principal Software Engineer – Identity & Access Management

🕒 Julho 30

🇦🇷 Argentina – Remoto

💵 $6.000 - $11.000 / mês

⏰ Tempo Integral

🔴 Especialista

🧑‍💻 Engenheiro Full-stack

👻 Score fantasma 33%

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Sezzle

SiteLinkedInTodas as Vagas

201 - 500 funcionários

Fundada em 2016

💳 Fintech

👥 B2C

🛍️ Comércio Eletrônico

Fintech • B2C • eCommerce

Sezzle é uma empresa de tecnologia financeira que oferece um serviço de compre agora, pague depois, permitindo que os consumidores comprem produtos e paguem em quatro parcelas sem juros ao longo de seis semanas. O app da Sezzle oferece aos usuários uma alternativa de financiamento flexível aos cartões de crédito tradicionais, possibilitando decisões de aprovação instantâneas sem impactar o score de crédito. A Sezzle faz parceria com diversas marcas líderes, incluindo Amazon, Walmart e Target, para oferecer opções de pagamento no app e na loja. A missão da empresa é empoderar financeiramente os consumidores, proporcionando mais liberdade e controle financeiros. Disponível como aplicativo móvel, com milhões de downloads e altas avaliações dos usuários, a Sezzle trabalha pela acessibilidade e inclusão em sua plataforma.

Descrição

• Own the technical vision and roadmap for Sezzle’s authentication and authorization platform, including an API auth gateway and identity services • Architect, design, and build scalable, highly available authentication services and gateway components primarily in Golang using AWS, RDS, and distributed patterns • Design and lead phased, zero-downtime migrations with rollback and safety mechanisms • Establish authentication and authorization standards, including OAuth2/OIDC, JWT, opaque and refresh tokens, mTLS, workload identity, RBAC, ABAC, and policy engines • Drive consistency and scalability across distributed microservices while maintaining performance, reliability, and edge-gateway latency budgets • Partner with Security and Compliance on fintech-grade security and regulatory requirements • Establish engineering best practices for observability, security, and CI/CD • Participate in on-call rotation and lead incident response and postmortems • Mentor engineers and promote learning, innovation, and operational excellence • Collaborate cross-functionally to translate business goals into technical roadmaps and deliver results • Help establish effective AI-tooling practices for security-sensitive systems

🎯 Requisitos

• 12+ years of professional software engineering experience, including significant backend experience • Deployed significant changes to a production application within the past 30 days • Deep hands-on expertise in authentication and authorization systems, including OAuth2, OpenID Connect, SAML, JWT, session-based authentication, token lifecycle management, RBAC, ABAC, and policy-as-code • Experience designing, building, or operating an API gateway or auth proxy at scale • Proven track record leading large-scale service extraction or migration with zero or minimal customer impact • Strong proficiency in Golang and experience building and maintaining RESTful APIs • Expertise with SQL-based RDBMS, including MySQL and PostgreSQL, and query/schema optimization at scale • Understanding of distributed systems patterns, including transactional outbox, event-driven architecture, and queues • Ability to influence decisions and lead complex technical initiatives across teams • Demonstrated current use of AI tooling such as Claude Code, Codex, Cursor, or custom LLM integrations • Bachelor’s degree in Computer Science or a similar technical field (required) • Preferred: identity platforms and standards implementations such as Keycloak, Auth0, Okta, Ory, or in-house IdPs • Preferred: service mesh and edge technologies such as Envoy, Istio, mTLS, rate limiting, and WAF integration • Preferred: threat modeling, secure design review, and auth attack-vector knowledge • Preferred: observability tools such as Prometheus, Grafana, Datadog, or New Relic • Preferred: AWS cloud infrastructure, especially Aurora RDS for MySQL and Postgres • Preferred: fintech, payments, BNPL, or consumer lending experience and familiarity with PCI-DSS or SOC 2 • Preferred: CI/CD pipelines and containerized microservices using Docker and Kubernetes • Preferred: commercial APIs and platform infrastructure in high-growth environments • Preferred: technical leadership, reliability improvement, and engineering-organization scaling

🏖️ Benefícios

• Fully remote work • No relocation or commute required • Competitive compensation • Principal-level scope and ownership • Career advancement opportunities • AI-assisted development tools and workflows • Exposure to innovative fintech and retail technology • Culture of learning, innovation, and operational excellence