About the role

Senior Analyst developing decentralized identity solutions supported by blockchain for Vivo. Collaborating on integrations and implementations that align with corporate architecture strategy.

Responsibilities

Responsibilities
Develop Decentralized Identity (DID/VC) solutions backed by blockchain, integrated with enterprise applications and APIs.
Implement integrations between internal services and ecosystem components (issuance/verification, DID resolution, registries/ledgers, integration with wallets and SDKs).
Understand and implement major ecosystem standards and specifications (DID/VC, smart contracts when applicable) and corporate integration standards.
Build reusable blockchain-layer components (node network connections, transactions, events, indexing/query and traceability).
Develop and test smart contracts, following engineering standards, versioning and security best practices.
Contribute to hardening and protection of secrets (Vault/Secret Managers, access policies and rotation), guided by technical references.
Automate tests (integration, contract, regression) and perform end-to-end validation of DID/VC journeys.
Document technical decisions and contribute reusable guides and templates.
Develop and test data load flows (ETL).
Execute and manage change processes according to the company’s change governance (ITSM).
Monitor pentest reports and remediate vulnerabilities.

Requirements
Hands-on experience in development and system integration (REST APIs, events, messaging, databases).
Experience with object-oriented languages such as Java, Kotlin or C#.
Experience or familiarity with frameworks like Spring (Spring Boot) and/or Quarkus (or equivalents in the ecosystem).
Familiarity with blockchain fundamentals (transactions, keys, nodes, public vs permissioned networks) and integration with blockchain services.
Practical familiarity with DID/VC (issuance, verification and integration components).
Understanding of smart contracts and their lifecycle (deploy, calls, events), and basic security practices.
Preferred / Nice to have
Experience with at least one relevant blockchain platform (EVM or permissioned) in an integration context.
Experience with testing/quality tools and pipelines applied to smart contracts.
Experience in regulated/complex environments with auditing and traceability requirements.
Security certifications: CISSP, CEH, CCSP or equivalents.

Choose the benefit that best suits you and your dependents via a digital platform with multiple categories: gym, meal vouchers, food vouchers, pharmacy assistance, health care, dental care and life insurance;
Company smartphone. Yes, a brand-new smartphone for you!
Unlimited voice and data plan! Yes, unlimited! Vivo’s 5G is up to 10x faster!
An exclusive Vivo offer with special discounts on landline, broadband, TV and apps;
Eligible to receive an annual Bonus or PPR;
Plan your future through a private pension plan;
Have children? You’ll be entitled to a subsidy to help with school, daycare or nanny expenses;
Work in an environment that respects your personality, dress style and who you are, allowing you to be authentic. #BeYourself
Work remotely up to 3 times a 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; certifications and online courses;