Cognizant

Senior Backend Developer - Identity & Vehicle Platform Engineering-Remote

Cognizant$125K — $135K *
Enterprise Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5-7 years of strong backend development experience in Java/Spring Boot or equivalent frameworks
  • Proven expertise in REST API design, relational database schema migrations, and indexing
  • Familiar with authentication/authorization frameworks like JWT, OAuth, and federated identity
  • Experience with middleware components, including interceptors and request contexts
  • Knowledge of payment systems, specifically tokenization like MasterCard SRC
  • Previous experience with multi-tenant data models and callback-based third-party systems
  • Strong system design and data modeling skills with a focus on data integrity and security.

Responsibilities

  • Design and implement new data models for user accounts and vehicle profiles
  • Refactor existing schemas to properly separate vehicle and profile data
  • Develop and execute comprehensive database migrations, including table creation and performance optimizations
  • Refactor REST APIs for updated relationships and operations across entities
  • Integrate Firebase Authentication and manage ID-token validation
  • Rework service logic to support vehicle enrollment and profile creation flows
  • Develop and execute integration and regression test plans to ensure data integrity and functionality.

Benefits

  • Comprehensive Medical/Dental/Vision/Life Insurance
  • Paid holidays plus Paid Time Off
  • 401(k) plan with contributions
  • Long-term and Short-term Disability coverage
  • Paid Parental Leave
  • Employee Stock Purchase Plan
Full Job Description
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

*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

$125,000 - $135,000 per year + Cost of living allowance
  • Bonus + Comprehensive Benefits

Additional Information
  • ⚠ 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

About Cognizant

TriZetto is Powering Integrated Healthcare Management. With technology solutions touching more than half the U.S. population today, TriZetto is uniquely positioned to drive the convergence of core benefit administration, care management and constituent engagement. TriZetto provides premier information technology solutions that enable payers and other constituents in the healthcare supply chain to improve the coordination of benefits and care for healthcare consumers.

Cognizant Careers

Join the vibrant team at Cognizant, a leading provider of information technology, consulting, and business process services. Cognizant is not just a company; it's a community where innovation, leadership, and diversity are valued and where every team member is encouraged to thrive.

Work You’ll Do

At Cognizant, we are dedicated to helping the world's leading companies build stronger businesses — not just for today but for the future. This commitment to growth and sustainability is what makes Cognizant a unique place to advance your career.

Explore Job Opportunities

Whether you're looking for an entry-level position or a more senior role, Cognizant offers a plethora of job opportunities that could be perfect for you. Our hiring process is designed to be transparent and engaging, ensuring that every candidate is able to showcase their skills and potential fully.

Innovative Work

Join a team where innovation is at the core of everything we do. Cognizant’s professionals are not just part of a company; they're part of a groundbreaking environment that combines technology, insights, and leadership to foster innovation across global industries.

Internship Programs

Kickstart your career with Cognizant’s internship programs. These opportunities allow you to gain hands-on experience, develop your professional skills, and network with experts in your field. An internship at Cognizant is a stepping stone to full-time employment and a chance to see how your studies apply in the real world.

Professional Growth and Development

Cognizant is committed to the professional growth of its employees. With access to cutting-edge training, leadership programs, and diversity initiatives, you can build a career that’s equipped for the demands of tomorrow’s business landscape.

Benefits and Culture

Our employees enjoy a range of benefits designed to support their physical, financial, and emotional well-being. Cognizant’s culture is built on a foundation of respect and inclusivity, where everyone’s contribution is valued. Join us and be part of a team that celebrates diversity and is driven to make a positive impact on the world.

Stay Connected

Join Our Team Search open positions that match your skills and interests. We look for passionate, curious, creative, and solution-driven team players. Ready to take the next step in your career journey? Explore the exciting employment and career opportunities waiting for you at Cognizant.

Keep Up to Date

Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here.

Job Alert Emails

Personalize your subscription to receive job alerts, latest news, and insider tips tailored to your preferences. Discover the rewarding opportunities that await at Cognizant.

Networking and Interviews

Enhance your career prospects at Cognizant through our robust networking events. Prepare your resume, sharpen your interview skills, and connect with leaders across the industry to unlock new career paths. At Cognizant, we don’t just offer jobs; we offer career journeys. Be part of a team that’s committed to your long-term career growth and professional development. Join Cognizant today and be a part of our success story.
Learn more about Cognizant
Size
340,400 employees
Market Cap
$28.7 billion
Industry
Net Income
$1.3 billion
Founded
1994
5 Year Trend
+6.5%
Revenue
$16.6 billion
NASDAQ

Similar Jobs

More Jobs at Cognizant

More Enterprise Technology Jobs

Find similar Senior Backend Developer - Identity & Vehicle Platform Engineering-Remote jobs: