Full-Stack Developer (Java) - Enterprise Applications Job at Citi (Warsaw)

Senior Java Full-Stack Developer

We are looking for a Full stack core software engineer with deep understanding o...

Location

India , Chennai; Pune

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

7+ years of industry experience with strong hands-on experience in development of mission-critical applications using Java/Python technologies
Experience with complex system integration projects
Java, Spring, Spring Boot, Spring Cloud, J2EE Design Patterns, REST services
Front End Technologies like JavaScript and Angular version, CSS2/CSS3, HTML
Strong Knowledge of SQL, JDBC, Unix commands
Hands-on Database experience in relational (Oracle/DB2) and No-SQL (MongoDB)
Hands-on experience on working/deploying application on Cloud
Hands-on experience in code testing tools like Junit/Mockito/Cucumber
Deployment Acquaintance in Apache Tomcat, Open shift or other cloud environments
Expertise in Test driven development (JUnit, JMeter), Continuous Integration (Jenkins), Build tool (Maven) and Version Control (Git), Development tools (Eclipse, IntelliJ)

Job Responsibility

Understanding user requirements and working with a development team on the design, implementation and delivery of Java/Python application
Providing expertise in the full software development lifecycle, from concept and design to testing
Working closely with teams to design and implement current and target state business process by using various tools and technologies

Fulltime

Full-Stack Developer

Join a highly experienced development team in the IDEAS department at Citi, resp...

Location

Poland , Warsaw

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

5+ years of experience in Core Java, Java EE, full-stack development, and proven experience in microservices architecture
strong proficiency with enterprise message bus systems (e.g., Solace, TIBCO or other JMS-based systems) and deep knowledge of RESTful web services
expertise in database design (Oracle 11+, writing complex SQL), ORM technologies, and J2EE application containers (e.g., Tomcat, WebSphere)
strong UI development skills, including JavaScript, Bootstrap, JQuery, HTML5, and CSS3/Ajax
familiarity with modern development environments (IDEs like Eclipse, IntelliJ), build tools (Maven, Ant), version control (Git), unit, integration, and system testing principles, and security best practices
excellent debugging and problem-solving skills, good verbal and written communication, and the ability to balance technical requirements with business needs in a global team
bachelor's degree in Computer Science, a related technical field, or equivalent work experience

Job Responsibility

design, develop, and maintain scalable web applications and microservices, focusing on usability, performance, and resilience
implement robust business logic and design efficient, scalable database models
develop and enhance user experience (UX) components
interact with an extended, global team of passionate, experienced software developers, architects, and business analysts
influence technologies and practices and contribute to design discussions and problem-solving sessions

What we offer

private medical care program
life insurance program
pension plan contribution (PPE Program)
employee assistance program
paid parental leave program (maternity and paternity leave)
sport card
holidays allowance
sport and team recreation activities
special offers and discounts for employees
access to an array of learning and development resources

Fulltime

Software Engineer II

As a Software Developer at SpryPoint, you will be building and integrating inter...

Location

Canada , Ontario; Halifax; Charlottetown

Salary:

Not provided

SpryPoint

Expiration Date

Until further notice

Requirements

Bachelor's degree in Computer Science, Engineering, or related field
3+ Years of experience in software development, with a focus on Java backend web applications
Proficiency in developing clean, maintainable, and testable code, with an understanding of industry best practices
Solid understanding of relational databases and proficiency in SQL for data manipulation and querying
Experience working with web technologies such as HTML, JavaScript, and CSS to develop user interfaces and interactive web applications
Familiarity or hands-on experience with modern development and deployment methodologies, including knowledge of AWS services and cloud computing concepts
Demonstrated interest in expanding knowledge and applying it to solve industry problems, with a proactive approach to continuous learning and skill development
Primary qualifications include a strong interest in learning and the ability to apply acquired knowledge effectively to produce clean, efficient code and solve technical challenges

Job Responsibility

Participate in all Agile ceremonies, providing valuable input and insights during planning, reviews, and retrospectives
Actively collaborate with other team members, contributing ideas and insights to enhance the development process
work collaboratively with other team members to solve complex technical challenges and make informed decisions
Build and deploy enterprise-level web applications, ensuring high performance, reliability, and user satisfaction across various platforms and devices
Continuously learning and adapting to new technologies and methodologies to enhance the quality and efficiency of SpryPoint's applications
Participate in an on-call rotation and support production systems as needed
Take ownership of assigned tasks or user stories, ensuring timely completion and meeting defined requirements
Contribute to the design and architecture discussions, offering insights and suggestions for improvements
Participate in code reviews, providing constructive feedback to peers and incorporating feedback received on own code
Support junior developers through pair programming, reviewing pull requests. Sharing knowledge and expertise with junior engineers, helping them grow and improve their skills

What we offer

Remote-first environment with flexible working hours across North America
Competitive Total Rewards - Comprehensive compensation package that grows with you
Complete Setup - MacBook + $500 to create your ideal home workspace
Total Wellness - Health, dental, vision, and life insurance from day one
Recharge Time - Generous PTO, Summer Friday half-days, and unlimited sick days
Future Security - RRSP (Canada) and 401k (US) matching programs
Continuous Growth - $2,500 annual development fund, tuition assistance, and Book Bounty program
Team Connection - Annual company events and team offsites that bring us together

Fulltime

Senior Full Stack Engineer

The Senior Full Stack Engineer will support the modernization of IRS mission-cri...

Location

United States , McLean

Salary:

Not provided

BLN24

Expiration Date

Until further notice

Requirements

Bachelor’s degree in Computer Science, Engineering, or related field
Minimum 6 years of experience in full-stack software development and architecture
Demonstrated expertise in designing and implementing RESTful and GraphQL APIs, and building service-oriented architectures
Proficiency with front-end frameworks such as React, Angular, or Vue, and backend technologies such as Node.js, Python, Java, or Spark
Solid working knowledge of core web technologies, including HTML, CSS, JavaScript, and modern UI component libraries
Hands-on experience with cloud platforms (AWS, GCP, Azure) and container orchestration tools including Kubernetes and OpenShift
Familiarity with platforms such as Databricks for data engineering, pipeline integration, or ML model support
Experience designing scalable, secure web applications and microservices architectures with considerations for caching, authentication, and maintainability
Working knowledge of SQL and NoSQL databases, CI/CD pipelines, infrastructure-as-code, and cloud monitoring tools
Experience collaborating in Agile delivery environments, and contributing to code reviews, documentation, and team-based development workflows

Job Responsibility

Design and develop scalable APIs using REST, GraphQL, and gRPC in compliance with IRS enterprise architecture and security standards (OAuth, JWT)
Lead full-stack development of modern, modular web applications that interface with IRS systems and external users
Decompose and migrate legacy system functionality (e.g., COBOL-based command codes) into modern service-oriented components
Integrate AI-driven services, including ML model endpoints, auto-generated documentation, code conversion workflows, and intelligent test automation
Implement CI/CD pipelines and automated testing tools (e.g., Postman, Newman) to ensure secure, validated, and maintainable code
Collaborate with DevOps and Site Reliability Engineers to embed observability tools (e.g., Prometheus, Datadog, New Relic) and monitoring dashboards
Translate business and functional requirements into API contracts and reusable service patterns, working within Agile Scrum teams
Maintain backward compatibility with legacy systems while building toward scalable, cloud-optimized services
Ensure IRS and Treasury IT governance compliance, including Section 508 accessibility and cybersecurity policies

What we offer

Generous medical, dental, and vision plans
Opportunity to work in different sectors
Flexibility to balance quality work and personal lives
Remote working opportunities

Fulltime

IT Software Developer Analyst-Level 2

Responsible for the development and integration of new or existing applications ...

Location

United States , Not Applicable

Salary:

Not provided

Apex Systems

Expiration Date

Until further notice

Requirements

Bachelor's degree in Computer Science, Information Systems, or a related field required
6-10 years of experience in application development, cloud computing, and enterprise software architecture
Proficiency in SQL, Python, Power BI, Java, .NET, AWS, and cloud-based technologies
Knowledge of DevOps practices, cloud automation, ERP integration, CI/CD pipelines, and microservices architecture
Experience with SCADA operations, Power BI, AWS Glue, Lambda, SNS, and SQS
Understanding of security, compliance, and regulatory requirements like SOX and cybersecurity best practices

Job Responsibility

Lead development and integration efforts for new or existing applications
Design, develop, and maintain Power BI dashboards, SQL databases, or full-stack applications
Troubleshoot complex system issues and provide solutions
Mentor junior developers and assist in Agile project planning
Ensure compliance with industry standards, security policies, and best practices
Responsible for the development and integration of new or existing applications into the technical infrastructure and existing business processes
Provides technical or functional guidance to project or work teams as needed within a specific discipline
Collaborates on an ongoing basis with the Business Systems Analyst
Analyzes, designs, develops, tests, debugs, implements, maintains, and/or enhances existing or new systems/ web pages that are reliable and efficient
Responsible for the writing and updating full-stack applications on existing hardware and business processes

What we offer

medical
dental
vision
life
disability
and other insurance plans
ESPP (employee stock purchase program)
401K program with company match after 12 months
HSA (Health Savings Account on the HDHP plan)
SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions

New

Java Backend Engineer

We are looking for a Java Backend Engineer with over 5 years of experience in fu...

Location

United States , Westlake

Salary:

Not provided

NTT DATA

Expiration Date

Until further notice

Requirements

Bachelor’s Degree or equivalent in a technology related field (e.g. Computer Science, Engineering, etc.) required
5+ years of demonstrable experience in full stack programming building scalable applications
5+ years’ experience with java spring-based frameworks and libraries preferably Spring boot
5+ years hands experience in cloud-based technologies, Microsoft Azure (Optional)
5+ years’ hands-on experience working with messaging technologies
Experience building and consuming REST API based integration and microservices architecture
Understanding and experience working with CI/CD processes and tools such as Jenkins
Experience with application testing frameworks like Junit
Strong analytical, technical, and problem-solving skills to understand complex customer needs and transactions
Java 1.8/J2EE (Mandatory)

Job Responsibility

Join a high-impact squad driving our client’s enterprise platform modernization journey—designing and integrating innovative solutions that shape the future of their technology landscape
Leverage your full-stack development expertise to build robust, enterprise-grade applications and Java (Spring/Spring Boot)
Collaborate within a dynamic, agile team environment while also taking ownership of individual deliverables to ensure the delivery of high-quality, scalable, and maintainable solutions

Fulltime

Senior Full Stack Developer

We are looking for a highly skilled and experienced Senior Full Stack Developer ...

Location

Canada , Mississauga

Salary:

120800.00 - 170800.00 USD / Year

Citi

Expiration Date

Until further notice

Requirements

6+ years of professional experience in full-stack development
Proven experience in designing and implementing complex, scalable, and high-performance enterprise-level applications
Expert-level proficiency in Java (8/11/17+) and Spring Boot, including advanced features, reactive programming, and performance tuning
Expert-level hands-on experience with Angular (8/10/12+) and TypeScript, including architectural patterns, state management (e.g., NgRx), and performance optimization techniques for large-scale applications
Proficient in building RESTful APIs and integrating them with front-end applications
Experience with containerization using Docker and orchestration using Kubernetes
Strong understanding of microservices architecture and event-driven systems
Experience with relational databases like Oracle
Knowledge of front-end technologies, including HTML5, CSS3, and JavaScript (ES6+)
Familiarity with state management libraries like NgRx or Redux

Job Responsibility

Design, develop, and maintain scalable and high-performance web applications using Java, Spring Boot, and Angular
Build and integrate RESTful APIs to enable seamless communication between front-end and back-end systems
Develop reusable and modular Angular components, services, and directives
Implement microservices architecture and containerize applications using Docker
Orchestrate and manage containerized applications using Kubernetes
Collaborate with cross-functional teams, including UI/UX designers, QA engineers, and DevOps teams, to deliver high-quality software solutions
Implement security best practices, including authentication and authorization using Spring Security and JWT
Write clean, maintainable, and well-documented code following industry best practices
Participate in code reviews, provide constructive feedback, and mentor junior developers
Work in an Agile/Scrum environment and contribute to sprint planning, daily stand-ups, and retrospectives

Fulltime

Applications Developer Senior Analyst

We are seeking a highly experienced and motivated Lead Java Full Stack Developer...

Location

Canada , Mississauga

Salary:

94300.00 - 141500.00 USD / Year

Citi

Expiration Date

Until further notice

Requirements

8+ years of progressive experience in software development, with a significant focus on Java/J2EE enterprise applications
Strong proficiency in Java/J2EE, including advanced concepts like multithreading, concurrency, and data structures
Exceptional analytical and problem-solving skills, with a proven ability to dissect complex technical issues, identify root causes, and drive effective solutions in high-pressure production environments
Expert-level knowledge and hands-on experience with Spring Boot, including Spring MVC, Spring Data, Spring Security, etc.
Demonstrated experience with modern GUI technologies (e.g., Angular, React, Vue.js) and associated web technologies (HTML5, CSS3, JavaScript, TypeScript)
In-depth knowledge and hands-on experience with relational databases, specifically Sybase and Oracle, including SQL, PL/SQL, database design, and performance tuning
Proven ability to architect, develop, and deploy full-stack solutions
Demonstrated experience in leading and mentoring development teams, with strong communication, interpersonal, and problem-solving skills
Experience with Git, Maven/Gradle, CI/CD pipelines (e.g., Jenkins), and cloud platforms is highly desirable
Bachelor's or Master's degree in Computer Science, Engineering, or a related field

Job Responsibility

Provide advanced technical support for escalated issues from production support team
During a production issue, act decisively to identify the root cause and deliver an effective solution
Analyzes applications to identify risks, vulnerabilities, security issues and improve the system performance
Partners with appropriate development and production support areas to prioritize bug fixes and support tooling requirements
Active involvement in and ownership of Support Project items, covering Stability, Efficiency, and Effectiveness initiatives
Lead the design, development, and implementation of complex Java/J2EE-based enterprise applications using Spring Boot
Define and enforce coding standards, best practices, and architectural patterns to ensure high-quality, maintainable, and scalable solutions
Conduct code reviews, provide constructive feedback, and ensure adherence to security and performance standards
Act as a subject matter expert for Java technologies, providing technical direction and problem-solving expertise
Drive end-to-end development, from front-end GUI design and implementation to back-end services and database integration

Fulltime

Full-Stack Developer (Java) - Enterprise Applications

Citi

Location:
Poland , Warsaw

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
January 29, 2026

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