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.

Job title

Consultant, Systems Architecture

Job type

Experience level

Mid levelSenior

Salary

Not specified

Degree requirement

No Education Requirement

Location requirements

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