Senior IT Engineer (Regulatory Reliability) - MX - 2026

Nu México; Ciudad de México; Híbrido; MXN 900.000 - 1.300.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Equity potential

Health and life insurance

Dental and Vision Insurance

NuCare mental health support

Nucleo learning platform

NuLanguage language learning

Holiday bonus 30 days pay/year

17 days paid vacation + 25% bonus

Gym partnership

Food card

Work-from-home allowance

Parental consultancy

Relocation assistance

Hybrid work model

Descripción de la vacante

Nu México in Mexico City is seeking a Senior Reliability Engineer to drive reliability for regulatory infrastructure, ensuring real-time interbank transfers remain available and observable.

You will work across teams to define SLIs/SLOs, lead incident responses, and evolve observability with tracing and metrics, while planning disaster recovery and on-call rotations. The role requires 5+ years in SRE/DevOps, Linux, AWS, IaC, and strong English/Spanish communication.

Formación

• 5+ years in SRE, DevOps, or production engineering on mission-critical, high-availability systems.
• Hands-on with IT infrastructure platforms, virtualized and hyperconverged environments such as VxRail, and physical production infrastructure.
• Proficient in Linux systems, performance tuning, kernel parameters, and security hardening.
• Experience leading incident response and postmortems for customer-impacting services.
• Strong knowledge of networking: TCP/IP and routing.
• Scripting or programming in Python or Shell for automation and tooling.
• Experience with observability stacks (Prometheus, Grafana) and distributed tracing.
• AWS experience across EC2, S3, CloudWatch, KMS, EKS/ECS, VPCs, RDS, DynamoDB, SQS, SNS.
• Familiarity with infrastructure-as-code tools (Puppet) and Git-based workflows.
• Strong written and verbal communication in Spanish and English.
• IT Regulatory audit exposure, including evidence gathering, control validation, audit prep, and remediation.
• Familiarity with AI-assisted engineering tools.

Responsabilidades

• Own end-to-end reliability for IT regulatory infrastructure services, including connectivity and transaction flows.
• Define, measure, and improve SLIs, SLOs, and operational health indicators.
• Lead incident response, coordinate recovery, and drive postmortems with corrective actions.
• Design and evolve observability with tracing, queue health, and platform signals.
• Plan and execute disaster recovery and business continuity exercises.
• Reduce operational toil through automation and improved runbooks.
• Drive capacity planning and performance engineering for peak transactions.
• Collaborate with security, networking, middleware, and software teams to improve resilience.
• Participate in an on-call rotation.

Conocimientos

SRE

DevOps

Linux

Observability

Prometheus

Grafana

AWS

Networking

Scripting

Python

Shell

Incident Response

Postmortems

Disaster Recovery

On-call

Security Hardening

Puppet

Git workflows

VxRail

Herramientas

VxRail

EC2

S3

CloudWatch

KMS

EKS/ECS

VPCs

RDS

DynamoDB

SQS

SNS

Puppet

Descripción del empleo

About Nu

Nu is the leading digital bank in Latin America, serving 135 million customers across Brazil, Mexico, and Colombia. The company has been leading an industry transformation by leveraging data and proprietary technology to develop innovative products and services.

About Nu

Nu is the leading digital bank in Latin America, serving 135 million customers across Brazil, Mexico, and Colombia. The company has been leading an industry transformation by leveraging data and proprietary technology to develop innovative products and services.

Guided by its mission to fight complexity and empower people, Nu caters to customers’ complete financial journey, promoting financial access and advancement with responsible lending and transparency. The company is powered by an efficient and scalable business model that combines low cost to serve with growing returns.

Nu’s impact has been recognized in multiple awards, including Time 100 Most Influential Companies, Fast Company’s Most Innovative Companies, and Forbes World’s Best Banks.

Visit our Institutional Page

About The Role

We are looking for a Senior Reliability Engineer to drive reliability, resilience, and operational excellence for Nubank's regulatory infrastructure. In this role, you will own critical reliability outcomes for systems that support real‑time interbank transfers, regulatory integrations and key regulatory platforms. You will work across infrastructure, software, networking, security, and operations to keep mission‑critical services available, observable, and resilient under demanding regulatory and operational constraints.

What You’ll Do

• Own end-to-end reliability for IT regulatory infrastructure services, including connectivity, transaction processing flows, and settlement‑related operational workflows.
• Define, measure, and continuously improve SLIs, SLOs, and operational health indicators for critical transactions and platforms.
• Lead incident response for different severity production events, coordinate recovery, and drive high‑quality postmortems with concrete follow‑through on corrective actions.
• Design and evolve observability for the platform, with emphasis on tracing, queue health, signature validation, infrastructure signals, and early detection of degraded regulatory links or transaction bottlenecks.
• Plan and execute disaster recovery and business continuity exercises, including failover validation, contingency readiness, and RTO/RPO verification.
• Reduce operational toil through automation, tooling, and improved runbooks for recurring failure and operational procedures.
• Drive capacity planning and performance engineering to ensure the platforms can safely absorb peak transaction volumes and evolving business demand.
• Partner closely with security, networking, middleware, and software engineering teams to improve platform hardening, resilience, and change management safety.
• Participate in an on‑call rotation.

What We’re Looking For

• 5+ years of SRE, DevOps, or production engineering experience operating mission‑critical, high‑availability systems.
• Hands‑on experience with IT infrastructure platforms, virtualized and hyperconverged environments such as VxRail, and physical production infrastructure.
• Hands‑on experience with Linux systems, including performance tuning, kernel parameters, and security hardening.
• Track record leading incident response and postmortem processes for customer‑impacting services.
• Solid knowledge of networking fundamentals: TCP/IP and routing.
• Proficiency in at least one scripting or programming language (Python, Shell scripting) for automation and tooling.
• Experience with observability stacks (Prometheus, Grafana) and distributed tracing.
• AWS infrastructure experience across services like EC2, S3, CloudWatch, KMS, EKS/ECS, VPCs, RDS/DynamoDB, and SQS/SNS.
• IT Regulatory audit experience, including evidence gathering, control validation, audit prep, and remediation follow‑through.
• Experience with infrastructure-as-code tools (like Puppet) and Git‑based workflows.
• Working knowledge of AI‑assisted engineering tools (Claude, Cursor, Claude Code).
• Strong written and verbal communication skills in Spanish and English.

Nice to have

• Experience with Mexican payment rails (SPEI)
• SQL knowledge for operational analysis and troubleshooting.

Relevant cloud (AWS Certified Cloud Practitioner certification or higher) or IT infrastructure certifications.

Location for this opportunity

• Mexico City, Mexico

Our Benefits

• Chance of earning equity at Nu
• Extended maternity and paternity leaves
• Health and life insurance
• Dental and Vision Insurance
• NuCare - Our mental health and wellness assistance program
• Nucleo - Our learning platform of courses
• NuLanguage - Our language learning program
• Holiday Bonus ("Aguinaldo") of 30 days of pay per year
• 17 days of paid vacation with 25% vacation bonus
• Gym partnership
• Food card
• Work-from-home Allowance
• Parental Consultancy
• Relocation Assistance Package, if applicable

Work Model for this Role

• Hybrid 2-3 times/week: Our hybrid work model brings us to the office at least twice a week, on strategic days designed to maximize team connection and collaboration. For more details, visit https://building.nubank.com/nu-hybrid-work-model/

Our recruitment process may involve the use of artificial intelligence–enabled tools, such as automated interview transcription and analysis, to support the evaluation process. Artificial intelligence is not used to make final hiring decisions; all decisions are made by human reviewers.