Hybrid Consultant, Systems Architecture

at Vivo (Telefônica Brasil)

• Job title: Consultant, Systems Architecture
• Job type: Full Time
• Experience level: Mid level, Senior
• Salary: Not specified
• Degree requirement: No Education Requirement
• Tech skills: Cloud, ETL, ITSM, Java, Kotlin, Kubernetes, Spring
• Location requirements: Hybrid, Sao Paulo, Brazil

About the role

• CIO overseeing decentralized identity projects and blockchain solutions at Vivo. Leading technical design and integration strategies for secure corporate applications.

Responsibilities

• Define and implement scalable, secure DID/VC architectures with a blockchain layer (public and/or permissioned) for corporate use cases.
• Lead the design and execution of integrations between blockchain, identity services and corporate systems (APIs, events, gateways, messaging).
• Ensure consistent adoption of DID/VC, blockchain and smart contract standards and specifications, with a focus on interoperability and engineering.
• Develop and test data loading flows (ETL).
• Implement and utilize Zero-Knowledge Proof (ZKP) frameworks and Hyperledger technologies (focused on DID).
• Develop integrations with certificate issuers (e.g., Certificate Authorities).
• Design and develop integrations with wallets, agents and SDKs related to identity.
• Design end-to-end flows for issuance, presentation and verification of credentials, aligning governance, traceability and operational requirements.
• Define engineering standards for smart contracts: modeling, events, versioning, testing, review and security best practices.
• Define environment strategy: deployment and operation of nodes/services (cloud/on-prem/Kubernetes), observability, performance and resilience.
• Establish quality practices: integration and end-to-end testing, contract testing, performance testing and CI/CD automations.
• Produce and evolve reference architectures, guides and technical accelerators to standardize and scale deliveries.
• Manage and execute change processes according to company governance for change management (ITSM).
• Develop and document integrations with HSMs.
• May provide technical leadership to Analysts.

Requirements

• Strong experience as a senior developer/architect in distributed systems and complex integrations.
• Mandatory hands-on experience with Decentralized Identity (DID/VC) in a corporate context.
• Deep knowledge of standards and specifications applicable to DID/VC and smart contracts, with a focus on interoperability and engineering.
• Experience with object-oriented languages such as Java, Kotlin or C#.
• Practical production experience with Spring and/or Quarkus (or equivalents).
• Knowledge of applied security (signatures, keys, secrets, hardening and access controls) and engineering practices (testing, CI/CD).

Benefits

• Choose the benefits that work best for you and your dependents via a digital platform offering categories such as gym memberships, meal and food allowances, pharmacy assistance, medical and dental coverage, and life insurance.
• Corporate mobile phone: a brand-new smartphone for you.
• Unlimited voice and data plan.
• An exclusive Vivo offer with special discounts on landline, broadband, TV and apps.
• Eligible to receive an annual bonus or PPR (profit participation program).
• Plan your future through a private pension plan.
• If you have children, you are eligible for a subsidy to help with school, daycare or babysitter expenses.
• Work in an environment that respects your personality, dress style and individuality—be yourself. #VemdeVocê
• Work remotely up to 3 times per week. #Mobility
• Flexible working hours.
• Enjoy a day off to celebrate your birthday.
• Participate in one of the largest corporate volunteer programs to help make a difference.
• Benefit from our Educational Development Program offering partnerships with educational institutions at a discount, plus certifications and online courses.