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Full Stack Developer Contract Jobs in Hamilton, ON

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 ...

Senior Full-Stack Engineer (Media Team) Location: Ottawa, ON or Toronto, ON | Hybrid Department ... Design and evolve media platform APIs and contracts for multiple internal, as well as external ...

As Full Stack Engineer, you'll be reporting to the IT Manager, and be part of the IT team that is responsible for maintaining and extending current systems along with the development of new modules ...

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We are seeking a skilled Full Stack Software Developer with 5+ years of professional experience to design, develop, and maintain robust web applications from concept to deployment. In this on-site ...

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Full Stack Developer Contract information

What is a full stack developer contract?

A Full Stack Developer Contract refers to a temporary or project-based employment arrangement where a developer is responsible for both front-end and back-end aspects of web or software development. Full stack developers are skilled in multiple technologies, enabling them to handle databases, servers, systems engineering, and client-facing interfaces. Contract roles often provide flexibility for both the employer and the developer, and can range from short-term projects to longer engagements. These positions are typically filled by experienced professionals who can quickly adapt to different technologies and project needs.

What are some common challenges full stack developers face when working on contract projects?

As a contract Full Stack Developer, you may encounter challenges such as adapting quickly to new codebases, tools, and team workflows, since contract roles often require rapid onboarding. Balancing front-end and back-end tasks within tight deadlines can be demanding, especially when project requirements change or are not clearly defined. Additionally, frequent communication with both technical and non-technical stakeholders is essential to ensure alignment and successful project delivery. Staying organized and proactive in managing your workload will help you handle these challenges effectively.

What are the key skills and qualifications needed to thrive as a full stack developer on contract, and why are they important?

To thrive as a Full Stack Developer on contract, you need strong proficiency in both front-end (e.g., JavaScript, HTML/CSS, frameworks like React or Angular) and back-end (e.g., Node.js, Python, Java, databases) development, typically demonstrated through a relevant degree or portfolio. Familiarity with version control systems (like Git), CI/CD pipelines, cloud platforms (AWS, Azure), and sometimes certifications in specific technologies is highly valued. Excellent problem-solving, time management, and communication skills help you collaborate effectively and deliver results within tight deadlines. These abilities ensure you can independently manage diverse project requirements and consistently deliver high-quality, scalable software solutions for clients.

What is the difference between Full Stack Developer Contract vs Front End Developer Contract?

AspectFull Stack Developer ContractFront End Developer Contract
Required SkillsProficiency in both front-end and back-end technologies, databases, server managementExpertise in HTML, CSS, JavaScript, UI/UX design, front-end frameworks
Work EnvironmentDevelops complete applications, often involved in both client and server-side tasksFocuses on user interface, visual elements, and client-side functionality
Common UsageUsed across startups, tech companies, and agencies needing versatile developersPrimarily in front-end design agencies, web development firms, and client-facing projects

Full Stack Developer Contract roles require a broad skill set covering both front-end and back-end development, making them suitable for versatile projects. Front End Developer Contract positions focus specifically on user interface and experience. Understanding these differences helps employers and freelancers choose the right role for their needs.

What are the most commonly searched types of Full Stack Developer jobs in Hamilton, ON?

The most popular types of Full Stack Developer jobs in Hamilton, ON are:

What are popular job titles related to Full Stack Developer Contract jobs in Hamilton, ON?

For Full Stack Developer Contract jobs in Hamilton, ON, the most frequently searched job titles are:

What cities near Hamilton, ON are hiring for Full Stack Developer Contract jobs?

Cities near Hamilton, ON with the most Full Stack Developer Contract job openings:

Infographic showing various Full Stack Developer Contract job openings in Hamilton, ON as of August 2026, with employment types broken down into 89% Full Time, 6% Part Time, 4% Contract, and 1% Nights. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution.

Java Full Stack Developer - React JS - Assistant Vice President

Citi

Mississauga, ON • On-site

CA$94K - CA$141K/yr

Full-time

Posted 29 days ago


Key responsibilities

  • Design, develop, and maintain scalable full stack applications with a focus on React.js and modern UI architecture.

  • Develop backend services using Java (17+), Spring Boot, and microservices architecture, including building RESTful web services and API gateways.

  • Support CI/CD pipelines, monitor applications, and resolve production issues using tools like Jenkins, ELK, and Grafana.


Citibank rating

8.4

Company rating: 8.4 out of 10

Based on 179 frontline employees who took The Breakroom Quiz

39th of 176 rated banks


Job description

Job Overview The position is for a senior full-stack developer with 6-8 years of experience, specializing in building enterprise-scale applications. This role is suited for a strong React-focused full stack developer with prior experience in Angular and Java-based backend systems, contributing to modern, scalable, and cloud-native applications. Responsibilities Design, develop, and maintain scalable full stack applications with a focus on React.js and modern UI architecture Core Skills: Expert-level proficiency in modern JavaScript frameworks (React.js/Angular), JavaScript (ES6+), TypeScript, HTML5, and CSS3

Modernize legacy Angular applications into React-based solutions Develop backend services using Java (17+), Spring Boot, and microservices architecture Proven experience building RESTful web services and API gateways, such as Apigee Build and maintain event-driven data pipelines with real-time data processing using Kafka. Database Integration: Integrate applications with both SQL (Oracle, PostgreSQL) and NoSQL databases, utilizing caching solutions where appropriate. Proficiency with version control systems such as Git, GitHub, or Bitbucket.

Experience with CI/CD tools like Jenkins, Harness or Tekton. Integrate with Oracle and NoSQL databases (MongoDB) Standards: Knowledge of responsive design principles, accessibility (ADA compliance), and end-to-end UI deployment strategies. Proficiency with build tools like Maven or Gradle and unit testing frameworks (e.g., JUnit, Mockito)

Support CI/CD pipelines using Jenkins, TeamCity, or similar tools Work with Docker, Kubernetes, and OpenShift for containerized deployments Use AI-assisted development tools (e.g., GitHub Copilot) to enhance productivity Monitor applications using ELK, Grafana, and resolve production issues Demonstrated ability to build and maintain large-scale data processing applications. Preferred Skills (Good to Have) Experience with data virtualization systems like Starburst. Experience with Python for scripting or data manipulation

Experience with QA automation frameworks and strategies for large-scale data processing. Familiarity with job scheduling tools like Autosys or ETL processes like SSIS. Experience with AI coding assistants Qualifications 5-8 years of experience in full stack development Strong coding, problem-solving, and debugging skills Experience working in Agile and global team environments Education Bachelor's degree in computer science, Engineering, or equivalent experience ------------------------------------------------------ Job Family Group: Technology ------------------------------------------------------ Job Family: Applications Development ------------------------------------------------------ Time Type: Full time ------------------------------------------------------ Primary Location Full Time Salary Range: $94,300.00 - $141,500.00 ------------------------------------------------------ Most Relevant Skills Please see the requirements listed above

------------------------------------------------------ Other Relevant Skills For complementary skills, please see above and/or contact the recruiter. ------------------------------------------------------ Automated Processing and AI We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.

Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.

------------------------------------------------------ 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.


What Citibank employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom


Citigroup Inc logo

About Citigroup Inc

Sourced by ZipRecruiter

We live in an increasingly complex world. Companies these days are either born global or are going global at record speed. Business and geopolitics are forging an entirely new dynamic and consumers now expect financial services to be a seamless part of their digital lives. Citi is a bank that’s uniquely positioned for this moment. Through our vast global network and our on-the-ground expertise, we can connect the dots, anticipate change and empathize the needs of our clients and customers in ways that other banks simply cannot. Citi's mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. We have set expectations for how we must act to bring our mission to life. These expectations are at the heart of our Leadership Principles – we take ownership, we deliver with pride and we succeed together.

Industry

Banking and credit intermediation

Company size

5,001 - 10,000 Employees

Headquarters location

New York City, NY, US