Job Summary
We are seeking a Senior Backend Developer to design implement and refactor core platform services supporting federated authentication and a multi-entity vehicle management system. This role focuses on integrating Firebase-based identity restructuring backend data models and modernizing API layers to support scalable account vehicle and profile relationships.
Responsibilities
- Data Model & Persistence Layer
- Design and implement new domain entities including user_account and vehicle_profile to support federated identity mapping.
- Refactor existing schemas (e.g.vehicle_enrollment) to separate vehicle-level and profile-level concerns.
- Develop and execute database migrations including:
- Table creation column restructuring and foreign key repointing
- Index updates and performance optimizations
- Implement data backfill and reconciliation logic for existing records including consolidation of vehicle and profile relationships.
API & Middleware Development
- Refactor REST APIs to support:
- Account-level vehicle-level and profile-level operations
- Updated relationships between entities (account-vehicles-profiles)
- Implement cross-cutting concerns:
- Request interceptors/filters for authentication and context resolution
- Shared request context updates (vehicleProfileId userAccountId)
- Enhance API contracts OpenAPI documentation and error handling to reflect new data model and authentication patterns.
Authentication & Security Integration
- Integrate Firebase Authentication and implement ID-token validation and claim extraction.
- Transition from client-credential-based authentication (e.g. Keycloak) to federated identity model.
- Implement account-ownership authorization to enforce access control across account vehicle and profile scopes.
Service Layer & Business Logic
- Rework service logic to support:
- Vehicle enrollment and profile creation flows
- Signing key management and rotation
- Payment/card binding at profile level
- Update transaction processing logic to distinguish between:
- Profile-based signed transactions
- Vehicle-level fallback scenarios
- Implement account-level operations such as:
- Full account closure with cascading vehicle unenrollment and partial failure handling
- Work with third-party integrations including:
- Firebase (identity provider)
- MasterCard SRC (card tokenization and identity binding)
- Payment middleware and BOS systems
- Ensure consistency of entity mapping across internal services and external callbacks.
Testing & Quality Engineering
- Develop and execute integration and regression test plans across:
- Updated schema and foreign key relationships
- API endpoints and authentication flows
- Update test teardown and data lifecycle logic to reflect new entity relationships.
- Strong experience in backend development (Java/Spring Boot or similar frameworks)
- Proven expertise in:
- REST API design and refactoring
- Relational database design schema migrations and indexing
- Authentication/authorization frameworks (JWT OAuth federated identity)
- Experience implementing middleware components such as interceptors filters and request contexts
- Familiarity with cloud-based identity providers (e.g. Firebase Auth OAuth providers)
- Experience with payment systems and tokenization (e.g. MasterCard SRC or similar)
- Prior work on multi-tenant or hierarchical data models (account-asset-profile)
- Knowledge of event-driven integrations and callback-based third-party systems
- Experience with API gateways and distributed security validation patterns
- Strong system design and data modeling skills
- Ability to manage complex refactoring across multiple layers (DB API service)
- Attention to data integrity security and backward compatibility
- Effective collaboration across architecture QA and integration teams
- End-to-end ownership of a major platform refactor spanning:
- Data model redesign
- Authentication transformation
- API and service re-architecture
- Direct impact on enabling scalable multi-vehicle multi-profile user experiences
- Critical role in aligning platform architecture with federated identity standards and payment constraints
Certifications Required
not required
About Cognizant’s IoT Practice:
Intelligent, IoT-enabled products will soon result in the proliferation of data and disrupt virtually all industries. To be successful, both large and small companies must leverage IoT capabilities by designing modern products that fundamentally connect people with processes. Within Cognizant IOT, we engineer industry-aligned, IoT-enabled products that merge industry needs with human drivers. Our intelligent products will revolutionize experiences and result in exciting, transformative outcomes. Without human-centered thinking, connected products are just standalone things—but with it, our modern connected products facilitate a unified way of life enjoyed by all.
*Please note, this role is not able to offer visa transfer or sponsorship now or in the future*
- Applications will be accepted until July 31st , 2026
- LI#- #LI-SC6
Compensation & Benefits
$133,000 – $180,000 per year
- Bonus + Comprehensive Benefits
Additional Information
- Onsite role
- ⚠️ Visa sponsorship is not available now or in the future. Candidates requiring sponsorship will not be considered.
Benefits: Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:
• Medical/Dental/Vision/Life Insurance
• Paid holidays plus Paid Time Off
• 401(k) plan and contributions
• Long-term/Short-term Disability
• Paid Parental Leave
• Employee Stock Purchase Plan
关于高知特 (Cognizant)
高知特(Cognizant)（纳斯达克代码：CTSH）作为一家AI Builder和相关技术服务提供商，致力于通过打造全栈AI解决方案，帮助企业将人工智能投资转化为实际价值。公司凭借深厚的行业经验、流程优化和工程技术专长，将企业独特的业务场景融入科技系统，赋能组织释放人才潜能，推动切实成果，并帮助全球企业在瞬息万变的环境中保持领先。如需了解更多详情，敬请访问 cognizant.ai 或关注@cognizant。
补充雇佣信息
薪酬信息截至本职位发布之日为准。Cognizant 保留在适用法律允许的范围内随时修改该信息的权利。
申请人可能需要通过现场面试或视频会议的方式参加面试。此外，候选人在每次面试时可能需要出示其当前所在州或政府签发的有效身份证件。
Cognizant 是一家提供平等就业机会的雇主。在招聘过程中，您的申请和候选资格不会因种族、肤色、性别、宗教、信仰、性取向、性别认同、国籍、残疾、遗传信息、怀孕、退伍军人身份或任何其他受联邦、州或地方法律保护的特征而受到影响。
