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Backend Senior Developer

00069144351

We are seeking experienced Senior Developer to design, build, modernize, and support enterprise-grade applications for the financial market, including funds, cards, payments, and related banking or transaction-processing platforms. The role involves on-premises and cloud servers/services, distributed systems, API platforms, data services, and mainframe-integrated environments. The ideal candidates will have strong software engineering fundamentals, hands-on experience with Java and modern backend frameworks, cloud-native AWS services, messaging, databases, DevOps practices, and the ability to collaborate effectively in Agile/Scrum teams.

Key Responsibilities

  • Design, develop, test, deploy, and maintain scalable enterprise applications using Java SE 11+, Java EE 9+, Spring Framework, and Spring Boot.
  • Support financial market solutions involving funds, cards, payments, banking integrations, and transaction-processing workflows.
  • Build and maintain RESTful APIs and backend services with secure authentication and authorization patterns, including OAuth 2.0.
  • Develop cloud-native solutions using AWS services such as API Gateway, Step Functions, Lambda, AuroraDB, DynamoDB, and Redis.
  • Support hybrid application landscapes that include on-premises servers/services, cloud services, and integrations between both environments.
  • Integrate enterprise systems using IBM MQ, IBM DB2, Redis, APIs, and event-driven communication patterns.
  • Support applications that interact with mainframe systems as an end user, including navigation, validation, and issue investigation.
  • Contribute to frontend and full-stack development using Node.js, React, NestJS, and NGINX where required.
  • Participate in API creation, documentation, testing, versioning, and lifecycle management.
  • Build, maintain, and improve CI/CD pipelines using GitLab and modern DevOps practices.
  • Deploy and support containerized applications in OpenShift environments.
  • Use AI CLI tools responsibly to improve developer productivity, code analysis, troubleshooting, and documentation.
  • Monitor, analyze, and troubleshoot application behavior using Splunk, Amazon CloudWatch, and Dynatrace.
  • Troubleshoot production and non-production issues involving applications, databases, messaging, cloud services, networking, and integrations.
  • Collaborate with product owners, QA, architects, business stakeholders, and operations teams to deliver reliable solutions.
  • Use Jira and ServiceNow for Agile delivery, incident management, change management, and operational support.
  • Mentor junior and mid-level developers through code reviews, design guidance, technical coaching, and engineering best practices.
  • Produce high-quality technical documentation, implementation plans, deployment notes, and support procedures.

Required Technical Skills

  • Strong experience with Java SE 11+ and enterprise Java development.
  • Experience with Java EE 9+ application development and enterprise integration patterns.
  • Strong hands-on experience with Spring Framework and Spring Boot.
  • Experience with Python 3.x for automation, scripting, data processing, testing, or backend services.
  • Solid understanding of API design, RESTful services, API creation, integration, and lifecycle management.
  • Experience with IBM DB2, including SQL development, performance troubleshooting, stored procedures, and schema analysis.
  • Experience with IBM MQ or similar enterprise messaging platforms.
  • Experience with Redis for caching, session management, or distributed application use cases.
  • Hands-on experience with AWS services, including:
    • API Gateway
    • Step Functions
    • Lambda
    • AuroraDB
    • DynamoDB
    • Redis or ElastiCache
  • Experience deploying or supporting applications on OpenShift.
  • Experience supporting applications across on-premises and cloud servers/services.
  • Experience with CI/CD pipelines, preferably using GitLab.
  • Experience with Node.js, React, NestJS, and NGINX.
  • Experience implementing OAuth 2.0 authentication and secure service-to-service communication.
  • Experience with observability and monitoring platforms such as Splunk, Amazon CloudWatch, and Dynatrace.
  • Practical experience with development tools such as VS Code and IntelliJ IDEA.
  • Familiarity with AI CLI tools for software development productivity.

Required Process and Collaboration Skills

  • Strong experience working in Agile/Scrum delivery teams.
  • Experience using Jira for backlog management, sprint planning, tracking, and reporting.
  • Experience using ServiceNow for incidents, requests, changes, or operational workflows.
  • Ability to communicate clearly with technical and non-technical stakeholders.
  • Strong analytical, debugging, problem-solving, and root-cause analysis skills.
  • Ability to work independently while also collaborating effectively across distributed teams.
  • Ability to mentor other developers and promote engineering excellence.

Preferred Qualifications

  • Experience modernizing legacy enterprise or mainframe-integrated applications.
  • Experience in financial services, funds, card platforms, payment systems, or banking transaction environments.
  • Experience with hybrid infrastructure, including on-premises systems integrated with cloud-native services.
  • Experience designing resilient distributed systems using asynchronous messaging and cloud workflows.
  • Experience with observability, logging, monitoring, alerting, and production support using tools such as Splunk, CloudWatch, and Dynatrace.
  • Experience with database optimization across relational and NoSQL platforms.
  • Experience with secure coding, vulnerability remediation, and enterprise security standards.
  • Experience with automated testing frameworks for Java, Python, Node.js, and React applications.
  • Experience designing reusable API patterns, integration templates, and developer standards.

Tools and Platforms

  • Languages and Frameworks: Java SE 11+, Java EE 9+, Python 3.x, Spring Framework, Spring Boot, Node.js, React, NestJS
  • Databases and Data Stores: IBM DB2, AuroraDB, DynamoDB, Redis
  • Messaging and Integration: IBM MQ, REST APIs, API Gateway
  • Cloud, Platform, and Infrastructure: AWS, OpenShift, Lambda, Step Functions, on-premises servers/services, cloud servers/services
  • DevOps and Source Control: GitLab, CI/CD pipelines
  • Web and Runtime: NGINX
  • Observability and Monitoring: Splunk, Amazon CloudWatch, Dynatrace
  • IDEs and Developer Tools: VS Code, IntelliJ IDEA, AI CLI tools
  • Enterprise Tools: Jira, ServiceNow
  • Security: OAuth 2.0 authentication
  • Mainframe: Mainframe usage as an end user


What we offer

  • The chance to work with impact. Here, you’re empowered to bring your biggest thinking to help our company and clients improve everyday life.
  • Ownership over your career. Stay at the top of your game through our award-winning learning and development ecosystem. And when your ambitions change or we offer new opportunities, we help you pivot by providing reskilling, on-the-job learning and guidance to find new roles that might be a better fit.
  • The opportunity to thrive on a high caliber team with heart. We celebrate each other’s experiences and perspectives and promote a sense of belonging through our affinity groups and diversity and inclusion initiatives.
  • A comprehensive total rewards package, including a competitive salary and a pension plan with matching contributions.
  • Flexible health and financial benefits to support you and your eligible dependents—from day one.
  • True work-life balance. Be at your best through paid time off, flexible work arrangements, volunteering opportunities, social events, and so much more.  

About us
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, building the bridge between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, realize tangible returns and keep global enterprises ahead in a fast-changing world. See how at www.cognizant.com or @cognizant.

Other employment-related information
Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, provincial or local laws.

If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] with your request and contact information.

Language requirements vary depending on roles, but we ask that all candidates have basic English proficiency for company-wide communications purposes. For roles based in Quebec, professional English proficiency is required, as you’ll deliver services to and collaborate with stakeholders outside the province who may not speak French.

Your path to Cognizant

Wondering what to expect after you apply? Here’s a peek at our recruitment process—and keep in mind that not all candidates advance through every step and the process may vary depending on your role and location.

Your Application Midnight Blue RGB

Step 1: Application

Find an open role that aligns with your skills and career goals and show us why you’re the person for the job. Consider joining our Talent Community if you don’t find the right opportunity.

Phone Call Midnight Blue RGB

Step 2: Recruiter call

If one of our recruiters sees a fit, they’ll set up a short introductory call to learn more about you and how your experiences and skills align with the role.

Step 3: Interview(s)

If you and our team would like to continue the process, you’ll meet with one of our hiring managers. Some roles may also require technical assessments and/or client interviews.

Step 4: Final decision

Our hiring team will then review each candidates’ potential to succeed in the role. This process may take some time because we want to get it right—but you can count on us to keep you updated.

Benefits that help you thrive and grow

Our teams achieve incredible things when they feel fully supported. That’s why our benefits program is built around the diverse needs of our people—so they can enjoy a fulfilling, balanced and healthy life.

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Financial wellbeing

Financial wellbeing

We regularly review market data to ensure compensation is competitive and reflects the value you bring. Your benefits extend beyond pay and may include retirement plans, financial education, discount programs, etc.

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Physical and mental wellbeing

Physical and mental wellbeing

We empower you to prioritize your wellbeing through paid time off, flexible working where possible, healthcare plans, counselling, our Mental Health Allyship program and more. 

Your Career, Your Way
Your career, your way

Your career, your way

With 90% of our associates building skills through GenAI training, job shadowing, industry certifications and more, you have everything you need to build a full career.

Professionals
Real-world impact

Real-world impact

Think about the biggest brands you rely on. Chances are, they rely on us to help strengthen their business. Here, you’ll turn bold ideas into solutions that improve lives everywhere.

02.2026 Superlearner Debashish
"Cognizant has one of the best learning ecosystems you can ask for. From sponsored certifications to training platforms to mentorship, we have all that we need to grow.”
Debashish Mishra SAP MM Developer
Laura Reynaud
"Cognizant offers me more than a job; it offers a community. We support each other, collaborate across borders and celebrate wins together. If you’re looking for a culture that values flexibility, diversity and growth, this is the place to be."
Laura Reynaud Lead Counsel
Lucas Hoffman
“I’ve had the chance to work on impactful projects and shadow colleagues, all while getting involved in internal initiatives. The world is your oyster at Cognizant—you just need to take advantage of it!”
Lucas Hoffman Consultant
Sujatha’S Journey Main
“When I first joined, I was quiet and hesitant to share my thoughts. The leadership programs and the mentoring I’ve received have helped me find my voice and grow as a leader.”
Sujatha Gopalakrishnan Portfolio Delivery Lead
Paulo Miguel Epili Main
"Nobody here says ‘that’s not my job.’ People just help. That’s the entrepreneurial culture that makes me stay at Cognizant.”
Paulo Miguel Epili Sr. Process Executive

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