Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior Java Full Stack Developer

Citigroup Inc.

The JAVA Full Stack Senior Developer role is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to contribute to applications systems analysis and programming activities.

Responsibilities

  • Utilize mature programming methodologies and languages, including Java Spring Boot and React.js, to deliver and maintain high-quality software solutions.
  • Design, develop, test, and deploy end-to-end solutions, from responsive React.js front‑end components to resilient Java Spring Boot microservices.
  • Architect and implement RESTful APIs and expose backend functionality as MCP (Model Context Protocol) services to be consumed by AI agents.
  • Deploy and manage applications within Citi's cloud environment (leveraging OpenShift/Kubernetes and AWS), integrating with cloud-native storage like S3 and enterprise databases like Oracle as a Service (OraaS).
  • Partner with and contribute to a cross‑functional team of product managers, designers, and other engineers to translate business requirements into high‑quality technical solutions.
  • Evaluate and recommend new and emerging technologies, including the application of AI, to solve complex business problems.
  • Ensure software components are designed and implemented to be of high quality, reusable, and easily maintainable.
  • Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations.
  • Conduct tasks related to feasibility studies, time and cost estimates, IT planning, risk technology, applications development, model development, and establish and implement new or revised application systems and programs to meet specific business needs or user areas.
  • Monitor and control all phases of development process and analysis, design, construction, testing, and implementation as well as provide user and operational support on applications to business users.
  • Utilize in-depth specialty knowledge of applications development to analyze complex problems/issues, provide evaluation of business process, system process, and industry standards, and make evaluative judgement.
  • Recommend and develop security measures in post‑implementation analysis of business usage to ensure successful system design and functionality.
  • Consult with users/clients and other technology groups on issues, recommend advanced programming solutions, and install and assist customer exposure systems.
  • Ensure essential procedures are followed and help define operating standards and processes.
  • Serve as advisor or coach to new or lower‑level analysts.
  • Has the ability to operate with a limited level of direct supervision.
  • Can exercise independence of judgement and autonomy.
  • Acts as SME to senior stakeholders and/or other team members.
  • Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency.

Qualifications

  • Excellent communication and collaboration skills, with the ability to articulate complex technical concepts to diverse audiences.
  • 6+ years of professional experience in full‑stack software development, with a proven track record of delivering complex, large‑scale, enterprise‑level applications.
  • 6+ years of hands‑on experience designing micro‑service‑based application.
  • Strong hands‑on experience with modern JavaScript frameworks, specifically React.js and TypeScript, for building sophisticated user interfaces.
  • Deep proficiency in Java and the Spring Boot framework for building enterprise‑grade microservices.
  • Low‑latency, scalable, high‑throughput API development (Spring Boot, Hibernate/JPA).
  • Hands‑on experience with a major cloud platform (AWS, Azure, or GCP) and containerization technologies (Docker, Kubernetes, OpenShift). Familiarity with CI/CD pipelines (Jenkins, GitHub Actions) is essential.
  • Problem‑solving, troubleshooting, and clean code (Core Java, J2EE, Collections, Multithreading).
  • API integration (third‑party libraries, security).
  • Distributed, multi‑tier application, reusable components/services development experience.
  • Experience in systems analysis and programming of software applications.
  • Experience in managing and implementing successful projects.
  • Working knowledge of consulting/project management techniques/methods.
  • Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements.
  • A strong interest or prior experience in Generative AI, Large Language Models (LLMs), and agent‑based systems is highly desirable.
  • Demonstrated analytical and problem‑solving skills with the ability to propose and implement effective solutions.

Education

  • Bachelor’s degree/University degree or equivalent experience.

This job description provides a high‑level review of the types of work performed. Other job‑related duties may be assigned as required.

This job opening is for an existing job vacancy.

Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.

View Citi’s EEO Policy Statement and the Know Your Rights poster.

#J-18808-Ljbffr

Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the Senior Java Full Stack Developer in Mississauga, ON vacancy
  • $92k per year

     ...Job description: Responsibilities Full-Stack Architecture: Architect and build new web applications from the ground up, ensuring high...  ...Degree Required Why is This a Great Opportunity: You will develop lightweight, high-performance web applications that interface directly... 
    Suggested
    Permanent employment
    Local area

    NPA WorldWide

    Mississauga, ON
    12 days ago
  •  ...Full Stack Developer - Python & AI Required Skills: Databases Strong expertise in Microsoft SQL Server (MSSQL) Experience with Google BigQuery Advanced SQL skills (query optimization indexing performance tuning ETL processes) Programming Languages... 
    Suggested
    Full time

    Astra North Infoteck Inc.

    Mississauga, ON
    1 day ago
  • $142k - $158k per year

     ...available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed please contact us. Required Experience: Senior IC... 
    Senior
    Long term contract
    Full time
    Work at office
    Remote work
    Flexible hours

    PointClickCare

    Mississauga, ON
    1 day ago
  •  ...development, testing and deployment. As a developer, the candidate will be responsible for...  ...At least 6+ years of experience with Java Experience...  ...Intermediate Seniority Senior... 
    Senior
    Java
    Internship

    Luxoft

    Mississauga, ON
    27 days ago
  •  ...Job Description: Job Title: Java Full stack Tech Lead 100% Remote Duration: 12 Months Job Description: - 7+ years of Java Full stack development experience - Design and implement end-to-end solutions for enterprise portal applications - Lead backend... 
    Java
    Contract work
    Remote work

    Astra North Infoteck Inc.

    Mississauga, ON
    6 days ago
  •  ...Full Stack Developer - React.js, Node.js, Python & AI Required Skills: Databases • Strong expertise in Microsoft SQL Server (MSSQL) • Experience with Google BigQuery • Advanced SQL skills (query optimization, indexing, performance tuning, ETL processes)... 
    Contract work

    Astra North Infoteck Inc.

    Mississauga, ON
    13 days ago
  •  ...Experience Required: 10+ Years Role Description We are seeking an experienced Senior Full Stack Developer to design, develop, and maintain scalable full-stack applications. The ideal candidate will have strong expertise in modern web technologies, data engineering... 
    Senior
    Contract work

    Astra North Infoteck Inc.

    Mississauga, ON
    20 days ago
  • $110k - $130k per year

     ...High-Performance Enterprise Software as a Senior C++ Developer!  We're partnering with a well-...  ...operating systems, system APIs, networking stacks, and low-level communication protocols...  ...with HPE NonStop (Tandem) environments Java or other enterprise backend development... 
    Senior
    Java
    Long term contract
    Work at office
    3 days per week

    STACK IT Recruitment

    Mississauga, ON
    19 days ago
  • $94.3k per year

     ...The Applications Development Senior Programmer Analyst is an intermediate...  ...judgement Recommend and develop security measures in post...  ...Qualifications ~4+ years of relevant Java experience required ~3+...  ...Development - Time Type Full time - Primary Location Full... 
    Senior
    Java
    Full time

    Citi

    Mississauga, ON
    19 days ago
  •  ...Senior Software Developer Aversan Inc. () is a trusted multi-service engineering and electronics manufacturing company. Aversan delivers leading...  ...business logic Location: Mississauga ON Job Type: Full Time Working Arrangement : Hybrid Responsibilities Guide... 
    Senior
    Full time

    Aversan

    Mississauga, ON
    1 day ago
  •  ...requirement for this role. Job title: Senior Software Engineer   What your day-to-day...  ...to iterate over software requirements · Develop tools and applications by producing clean,...  ...code that performs well at scale using Java · Experience with Spring Boot · In-depth... 
    Senior
    Java
    Long term contract
    Full time
    Work at office
    Remote work

    pointclickcare

    Mississauga, ON
    26 days ago
  •  ...Job Description: Job Title: Composition Developer Quadient Location: Mississauga Work Type: Hybrid (3 days/week in office)...  ...and frameworks with primary expertise in Kotlin and exposure to Java microservices and cloud Skills:Proficiency in Kotlin with additional... 
    Senior
    Java
    Full time
    Work at office
    3 days per week

    Astra North Infoteck Inc.

    Mississauga, ON
    12 days ago
  • At PointClickCare our mission is simple: to help providers deliver exceptional care. And that starts with our people. As a leading health tech company that’s founder-led and privately held, we empower our employees to push boundaries, innovate, and shape the future of healthcare...
    Senior
    Java
    Long term contract
    Full time
    Work at office
    Remote work

    pointclickcare

    Mississauga, ON
    26 days ago
  •  ...patients around the world. Role Overview: We are seeking a Senior Cloud Services Developer (Spring Boot/Kotlin) to serve as a technical lead within...  ...brings strong backend development expertise using Kotlin/Java and the Spring Framework, along with experience building... 
    Senior
    Java
    Remote work

    Myant Shared Service Corp.

    Mississauga, ON
    21 days ago
  • $110 - $115 per hour

    This Healthcare company in Mississauga is looking for a Senior Power BI Developer. Additional information: Contract: Consultation Term: 6 months...  ...to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers,... 
    Senior
    Contract work

    Randstad

    Mississauga, ON
    a month ago
  •  ...and will play a crucial role in designing, developing, and maintaining large scale Data...  ...that is positively impacting the lives of seniors and their caregivers all over North America...  ...of scalable distributed systems based on Java microservices -Engineer and optimize data... 
    Senior
    Java
    Long term contract
    Full time
    Work at office
    Remote work

    pointclickcare

    Mississauga, ON
    26 days ago
  • $80k - $108.33k per year

     ...and demonstrated ability with Java or GOSU programming Knowledge...  ...following areas Designing developing modifying and deploying...  ...Relevant experience and skills, Seniority and performance, Market and business...  ...package to all regular, full-time employees. In the U.S. and... 
    Java
    Permanent employment
    Full time
    Local area

    Capgemini

    Mississauga, ON
    12 days ago
  • $50 per hour

     ...software code for e-commerce and other Internet applications Design, develop and implement information systems business solutions Meet with...  ...Microsoft Visual Studio Model-View-Controller (MVC) C++ Java SQL .NET Software development MS Office Support... 
    Java
    Full time
    Temporary work

    Clientserver Tech Systems

    Mississauga, ON
    6 days ago
  • $85.87k - $107.34k per year

     ...Mississauga - 939   Employment Status: Salary Full-Time   Function: Engineering   Pay...  ..., DFM/DFA, standardization, tolerance stack‑ups, and FEA‑based optimization to reduce...  .... • Generate supporting documents to develop operation and maintenance manuals, spare parts... 
    Senior
    Full time
    Internship
    Local area

    Lincoln Electric

    Mississauga, ON
    14 hours ago
  •  ...Senior Quadient Inspire Developer – CCM, Template Development & Document Composition Required Skills • 8–10 years of experience in Quadient Inspire development. • Hands-on experience with Quadient Inspire Version 11 or higher. • Strong proficiency in data... 
    Senior
    Permanent employment

    Astra North Infoteck Inc.

    Mississauga, ON
    3 days ago
  • $81.5k - $108.6k per year

     ...hear from you. Salesforce Marketing Cloud Developer Summary We are seeking a Salesforce...  ...technical solutions with guidance from senior team members Build and optimize customer...  ...For additional information on McKesson’s full Equal Employment Opportunity policies, visit... 
    Senior
    Long term contract

    McKesson

    Mississauga, ON
    14 days ago
  •  ..., North America’s leading building envelope contractor is looking to hire a  Web   Application Developer to work in our beautiful Mississauga location.      Our Tech Stack Our primary tech stack is .NET (C#) hosted in AWS and Microsoft Azure. We use MongoDB, MySQL,... 
    Full time
    For contractors
    Work at office
    Rotating shift

    flynncompanies

    Mississauga, ON
    26 days ago
  •  ...Role: Angular Developer 100% Remote Primary Skills: An Angular Developer is responsible for designing, developing, and maintaining dynamic, responsive web applications using the Angular framework. Key responsibilities include: Develop user-friendly... 
    Contract work
    Remote work

    Astra North Infoteck Inc.

    Mississauga, ON
    4 days ago
  •  ...looking for an experienced Ab Initio ETL Developer with strong expertise in data...  ...licenses, Relevant experience and skills, Seniority and performance, Market and business consideration...  ...negotiable benefits package to all regular, full-time employees. In the U.S. and Canada,... 
    Long term contract
    Permanent employment
    Full time
    Local area

    Capgemini

    Mississauga, ON
    6 days ago
  •  ...maintenance such as changing zipper cloth, dies, seal bars and punches. Assists and works cooperatively with assistant machine operators to stack, mark, pack, and transport finished boxes. Review work instructions and procedures that are applicable to the position. Other... 
    Long term contract
    Full time
    Temporary work
    Flexible hours
    Shift work
    Afternoon shift

    ePac Flexible Packaging

    Mississauga, ON
    14 days ago
  • $76.34k - $179.09k per year

     ...change, and problem management Design, develop, and enhance ASP.NET (MVC/.NET Core) applications...  ...licenses, Relevant experience and skills, Seniority and performance, Market and business...  ...benefits package to all regular, full-time employees. In the U.S. and Canada, available... 
    Full time
    Local area

    Capgemini

    Mississauga, ON
    22 days ago
  • $25.33 per hour

     ...preview: PepsiCo Beverages Merchandiser It will be referenced throughout the interview process.  Compensation:  ~$25.33 per hour with full-time hours and overtime opportunities ~ Health & Dental Benefits Shifts: ~ Looking for open availability (including weekends)... 
    Hourly pay
    Full time
    Shift work
    Mississauga, ON
    12 days ago
  • $100k - $117k per year

     ...Location: Remote Employment Type: Full-Time Facets Developer / Integration Engineer (Remote) About the Role As a Facets Developer / Integration Engineer, you will make an impact by designing, developing, and supporting enterprise healthcare integrations that enable... 
    Long term contract
    Full time
    Temporary work
    Remote work

    Cognizant

    Mississauga, ON
    13 days ago
  • Description We are looking for a Produce Clerk - Full Time who is passionate about food and enjoys working in a fast paced, team environment!   Do you have outstanding customer service skills? Are you passionate about the food industry?   If so, come join our growing... 
    Full time
    Flexible hours
    Weekend work
    Afternoon shift

    Longo’s

    Mississauga, ON
    5 days ago
  •  ...Description   Please Note: This is a fixed term contract position that will last for the remainder of 2026     The AI Developer is responsible for designing, developing, and deploying enterprise-grade AI and Large Language Model applications that support business... 
    Fixed term contract
    Work at office

    Purolator

    Mississauga, ON
    14 hours ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Java Full Stack Developer. Be the first to apply!