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Senior Programmer Jobs in Markham, ON (NOW HIRING)

Senior Manager, Engineering Bradford On Manufacturing Hybrid/Flexible Work Environment Compensation $140,000- $160,000 based on experience with excellent bonus, benefits, and 3 weeks vacation Our ...

The Sr. DevOps Engineer identifies and optimizes the interdependencies between Engineering and Infrastructure Operations through a collaborative approach to continuous delivery and monitoring. KEY ...

Senior DevOps Engineer Position: Full time Location: Toronto, Ontario (Initially Remote) About Us: NTENT provides a Platform-as-a-Service (PaaS), allowing industry partners to customize, localize and ...

As a Senior Software Engineer, you'll lead technically significant initiatives across the stack -- building React interfaces, Node.js services, and PostgreSQL-backed systems. You'll work closely with ...

The Senior Engineer mentors technical client team members (Developers, Quality Engineers, ...) on the optimal use of tools and techniques involving AI that can be used to enable the software delivery ...

This role reports to the GM/VP of Engineering Responsibilities Business Development: * Strengthens relations with existing clients particularly with the client's senior management team * Builds ...

Showing results 21-40

Senior Programmer information

What is a senior programmer?

Senior Programmers are experienced software developers who take on advanced coding tasks and often provide technical leadership within their teams. They are responsible for designing, developing, and maintaining complex software systems, as well as mentoring junior developers. Senior Programmers typically have strong problem-solving skills, deep knowledge of programming languages, and experience with software architecture. They may also be involved in code reviews, setting best practices, and collaborating with other departments to deliver high-quality software solutions.

What are the key skills and qualifications needed to thrive as a senior programmer?

To thrive as a Senior Programmer, you need advanced proficiency in programming languages, solid software development experience, and often a relevant degree or equivalent expertise. Familiarity with frameworks, version control systems like Git, and agile development tools is typically required, and certifications in cloud platforms or specific technologies can be advantageous. Strong problem-solving, leadership, and communication skills enable effective collaboration and mentorship within development teams. These skills and qualities are crucial for delivering robust, scalable solutions and driving technical excellence in complex projects.

How do senior programmers typically mentor junior team members, and what impact does this have on team productivity?

Senior Programmers often play a key mentorship role by guiding junior developers through code reviews, pair programming, and sharing best practices. They provide technical leadership and help troubleshoot complex issues, ensuring code quality and knowledge transfer across the team. This mentorship not only fosters professional growth for junior members but also contributes to stronger team cohesion and faster problem-solving, ultimately boosting overall productivity and project success.

What is the difference between Senior Programmer vs Software Developer?

AspectSenior ProgrammerSoftware Developer
Required CredentialsBachelor's degree in Computer Science or related field; extensive coding experienceBachelor's degree often preferred; coding skills essential
Work EnvironmentDevelopment teams, project-based work, often in tech or software companiesSimilar environments; involved in designing, coding, testing software
Employer & Industry UsageUsed across tech, finance, healthcare, and other industries requiring software solutionsCommonly used in software firms, startups, and corporate IT departments

While both roles involve coding and software development, a Senior Programmer typically has more experience, takes on complex tasks, and may mentor junior staff. A Software Developer focuses on designing and building software applications, often with less emphasis on leadership or advanced technical oversight.

What do senior programmers do?

Senior programmers design, develop, and maintain software applications, often leading projects and mentoring junior team members. They analyze user requirements, write efficient code, troubleshoot issues, and ensure software quality using programming languages and development tools. Their role also involves reviewing code, optimizing performance, and collaborating with cross-functional teams to deliver technical solutions.

What are the most commonly searched types of Programmer jobs in Markham, ON?

The most popular types of Programmer jobs in Markham, ON are:

What cities near Markham, ON are hiring for Senior Programmer jobs?

Cities near Markham, ON with the most Senior Programmer job openings:

Infographic showing various Senior Programmer job openings in Markham, ON as of August 2026, with employment types broken down into 85% Full Time, 5% Part Time, 2% Temporary, 7% Contract, and 1% Nights. Highlights an 89% Physical, 3% Hybrid, and 8% Remote job distribution.

Senior Java Developer - Assistant Vice President

Citi

Mississauga, ON • On-site

CA$94K - CA$141K/yr

Full-time

Re-posted 20 days ago


Citibank rating

8.4

Company rating: 8.4 out of 10

Based on 179 frontline employees who took The Breakroom Quiz

39th of 174 rated banks


Job description

The Applications Development Senior Programmer Analyst 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: Collaborate with Technical lead to design, develop, and maintain software applications using Java, Spring, and Angular.

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 Recommend and develop security measures in post implementation analysis of business usage to ensure successful system design and functionality Develop common, reusable components and services, adhering to Citi's best practices. Design and develop high-performance, low-latency applications within existing Citi frameworks. Ensure the reliability, scalability, and performance of developed components.

Adopt an engineering mindset, thoroughly understanding use-cases, estimating volume and compute velocity requirements, and openly discussing implementation challenges and solutions. Actively contribute to system design and architectural decisions. Evaluate new strategic initiatives through Proof-of-Concepts (POCs) and transition successful concepts into robust, industrial-grade solutions.

Provide post-release support to business, development, and support teams. Develop applications adhering to best practices, including Test-Driven Development (TDD), high unit test coverage, and Continuous Integration (CI). Qualifications: 5-10 years of relevant experience in Requirement, analysis, Software programming, development, and Deployment 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 Modern Java Technologies: Core Java, Java EE, Spring Boot, Spring Microservices.

Programming Principles: Strong understanding of OOPS (Object-Oriented Programming), Data Structures, and Algorithms. Solution Design: Extensive experience in designing and developing integrated solutions with non-functional requirements (scalability, availability, consistency). Coding & Troubleshooting: Expertise in problem-solving and troubleshooting, ability to write "clean code" using Core Java, J2EE, Collections, and Multithreading.

API Development: Proficiency in API and Web Services development using REST protocols. Front-end Technologies: Experience in ReactJS or AngularJS and basic front-end technologies: HTML5, CSS3, JavaScript (ES6+). Messaging Platforms: Experience with High-Speed Messaging platforms, particularly Kafka.

Hands-on experience with database technologies, including RDBMS (e.g., Oracle) and NoSQL (e.g., MongoDB). Testing: Strong experience in Unit testing and ensuring test coverage. Cloud Platforms: Solid understanding of Docker and Kubernetes

API Documentation: Experience using Swagger/OpenAPI to define, document, implement, and test APIs. Design Patterns: Familiarity with Standard and Enterprise Design Patterns. Databases: Advanced knowledge of Relational Databases, SQL, and ORM technologies (JPA2, Hibernate).

Security: Expertise in Authentication, Authorization, and security protocols. CI/CD: Experience with Continuous Integration / Continuous Delivery (CI/CD) tools. Communication: Proven ability to communicate effectively both verbally and in writing.

AI/ML/LLMs: Knowledge of AI/ML, LLMs (including Spring AI). Education: Bachelor's degree/University degree 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


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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