Sr. Java Full Stack Engineer

We are seeking a Sr. Java FSE to guide the design and delivery of secure, scalable provider-domain applications. In this hybrid, day-shift role, you will apply deep backend engineering expertise to build resilient services, improve platform performance, and support business growth. You will collaborate with cross-functional teams to enhance customer and provider experiences across global markets.

In this role, you will

· Design and architect scalable microservices solutions using Java and Spring Boot to support complex provider-domain workflows and critical business processes.

· Develop and enhance secure, reliable backend services that process provider data accurately and align with enterprise engineering standards.

· Review and refactor existing applications to improve maintainability, modularity, observability, and release quality.

· Partner with product owners and business analysts to translate provider-domain requirements into clear technical designs for claims processing, eligibility checks, and provider lifecycle management.

· Lead integrations with internal and external systems through well-defined APIs, consistent data exchange, robust error handling, and adherence to security policies.

· Define testing strategies with quality engineering teams, including unit, integration, and contract testing.

· Investigate production issues using logs, metrics, and distributed tracing, and implement sustainable fixes that strengthen platform stability.

· Optimize database queries, data models, and service interactions to improve throughput and latency for high-volume transactions in hybrid-cloud environments.

· Promote DevOps practices, including automated builds, containerization, and continuous delivery, to streamline release cycles.

· Mentor engineers on microservices architecture, Java design patterns, Spring Boot configuration, and clean coding practices.

· Document technical designs, service interfaces, and deployment procedures to support maintenance, knowledge sharing, and audit readiness.

· Collaborate with operations, compliance, support, and other stakeholders to ensure technical decisions align with regulatory requirements and user-experience goals.

· Evaluate relevant tools, frameworks, and architectural patterns, and recommend practical improvements to platform resilience, scalability, and sustainability.

Work Model: Hybrid

We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a hybrid position in Hartford, CT, requiring attendance at a client or Cognizant office.

Please note that Cognizant cannot provide visa sponsorship now or in the future.

The working arrangements for this role are accurate as of the date of posting. This may change based on the project you’re engaged in, as well as business and client requirements. Rest assured, we will always be clear about role expectations.

· 6+ years of extensive hands-on experience designing and developing enterprise microservices using Java and Spring Boot.

· Strong understanding of microservices architecture, RESTful API design, and backend engineering principles.

· Experience with relational and/or NoSQL databases, messaging systems, and enterprise integrations.

· Proficiency with build tools, testing frameworks, version control, and automated delivery pipelines.

· Demonstrated ability to troubleshoot complex production issues using monitoring, log analysis, tracing, and performance-tuning techniques.

· Strong communication, technical leadership, mentoring, and cross-functional collaboration skills.

These will help you stand out

· Experience with healthcare provider operations, including onboarding, credentialing, directory management, data validation, claims, eligibility, or provider lifecycle processes.

· Experience developing and operating solutions in hybrid-cloud environments.

· Experience introducing engineering practices that reduce incidents and accelerate delivery.

We’re excited to meet people who share our mission and can make an impact in a variety of ways. Don’t hesitate to apply, even if you only meet the minimum requirements listed. Think about your transferable experiences and unique skills that make you stand out as someone who can bring new and exciting things to this role.

The annual salary for this position is $60,000 - $93,000, depending on experience, qualifications, geographic location, and other job-related factors.

In addition to salary, this role is eligible for Cognizant’s discretionary annual incentive program, subject to individual and company performance., Cognizant offers the following benefits for this position, subject to eligibility requirements:

· Medical, Dental, Vision, and Life Insurance.

· Paid Parental Leave.

· Short-Term and Long-Term Disability Coverage.

· 401(k) Plan with Company Contributions.

· Paid Holidays and Paid Time Off (PTO).

· Employee Stock Purchase Plan (where applicable).

· Employee Assistance Program (EAP).

· Wellbeing and Mental Health Programs.

· Tuition Reimbursement and Learning Resources.

· Career Development and Certification Opportunities.