Senior Java Developer

Full-time

Acestack

Ontario, CA

Job Type: Full Time

Location: Toronto, ON

Work Model: Onsite / 4 Days

Primary Skills: Java & Spring Boot, Microservices & REST APIs, Oracle SQL & Kafka/MQ

Job Description

We are seeking a Senior Java Developer to design, develop, and maintain scalable Java-based applications using Spring Framework and Spring Boot. The role involves building microservices, REST APIs, event-driven solutions, database integrations, and reliable enterprise applications while collaborating with cross-functional teams and stakeholders.

Key Responsibilities

Design, develop, enhance, and maintain Java-based applications using Spring Framework and Spring Boot 2.x .
Build and maintain RESTful APIs and microservices following industry best practices.
Implement event-driven and messaging solutions using Kafka and MQ .
Develop robust data access layers using Hibernate and SQL-based persistence.
Work with Oracle databases, including writing efficient SQL queries and optimizing database performance.
Implement data serialization and exchange using JSON.
Ensure application security, scalability, performance, reliability, and high availability.
Contribute to job orchestration and workflow processing within the platform.
Enhance application logging, monitoring, troubleshooting, and overall system reliability.
Collaborate with cross-functional teams to support technical delivery and program objectives.
Participate in architecture discussions, code reviews, and technical design decisions.
Support production systems and troubleshoot complex application issues.

Program & Stakeholder Management

Support cross-functional teams and contribute to program governance through regular status reporting and RAID management.
Follow established PMO frameworks, processes, and governance standards.
Build strong relationships with business, technology, vendor, and leadership stakeholders.
Ensure clear communication, expectation alignment, issue resolution, and timely decision-making.
Coordinate effectively across technical and business teams to support successful delivery.

Required Skills & Qualifications

Strong hands-on experience with Java and Spring Boot .
Experience developing RESTful APIs and microservices.
Strong knowledge of Kafka, MQ, and event-driven architecture.
Experience with Hibernate and SQL-based persistence.
Strong Oracle database and SQL query development skills.
Experience working with JSON and data serialization.
Understanding of application security, scalability, performance, and high availability.
Experience with logging, monitoring, and production support.
Strong communication, collaboration, and problem-solving skills.

Preferred Qualifications

Experience with enterprise-scale Java applications.
Knowledge of job orchestration and workflow processing.
Experience working in Agile environments and cross-functional teams.
Exposure to PMO governance, RAID management, and stakeholder reporting.
Experience in financial services or other highly regulated environments is an advantage.

Job Details

Job Type: Full Time
Location: Toronto, ON
Work Model: Onsite / 4 Days

Apply

Vacancy posted 2 days ago

Similar jobs that could be interesting for youBased on the Senior Java Developer in Ontario, CA vacancy

Sr Java Developer
Sr Java Developer Job Type: Full Time Location: Toronto, ON Work Model: Onsite / 4 Days Primary Skills: Java & Spring Boot, Microservices & Solace, Hibernate & SQL Job Description We are seeking a Sr Java Developer to architect and develop...
Senior
Full time
Acestack
Ontario, CA
2 days ago
Senior AI Application Developer in Java Stack
...Job Title: Senior AI Application Developer in Java Stack Job Type: Full Time Location: Toronto, ON Work Model: Onsite / 4 Days Primary Skills: Java & Spring Boot, AI Agentic Workflows, REST APIs & Microservices Job Description We are seeking...
Senior
Full time
Acestack
Ontario, CA
2 days ago
Senior AI Application Developer in Java Stack
...Job Title: Senior AI Application Developer in Java Stack Job Type: Full Time Location: Toronto, ON Work Model: Onsite / 4 Days Primary Skills: Java & Spring Boot, AI Agentic Workflows, REST APIs & Microservices Job Description We are seeking...
Senior
Full time
Acestack
Ontario, CA
2 days ago
Java Front End Developer
...We're looking for a strong Front-End Developer with 6 8+ years of experience in Angular, JavaScript, RxJS, NgRx/NGXS, REST APIs, HTML/CSS, and UI/UX. Key Responsibilities: ~6 to 8+ years experience in a front-end function/role ~ Proven expertise...
Suggested
J M Group Inc
Ontario, CA
2 days ago
Java Backend developer
Java Backend developer Job Type: Full Time Location: Toronto, ON Work Model: Onsite / 4 Days Primary Skills: Java & Spring Boot, Microservices & REST APIs, Generative AI & Prompt Engineering Job Description We are seeking an experienced Java...
Suggested
Full time
Acestack
Ontario, CA
2 days ago
Java Fullstack with React Developer
...Job Title: Java Fullstack with React Developer Location: Mississauga, ON Required Skills & Experience: Backend: Strong proficiency in Java (8/11/17), Spring Boot, Spring MVC, Hibernate/JPA, RESTful APIs, Microservices. Frontend: Hands-on experience...
Full time
AIT Global inc.
Ontario, CA
2 days ago
Java Full Stack Developer(Node.js, Java, Angular and Spring Boot)
...We are hiring for a Java Full Stack Developer. This role focuses on developing enterprise applications across both front-end and back-end technologies using Java, Angular, Node.js, and Spring Boot. The ideal candidate will have 6 8+ years of full stack development...
Work experience placement
J M Group Inc
Ontario, CA
2 days ago
Software Development Senior Analyst
...Title: Software Development Senior Analyst Location: Brampton, ON(Hybrid) Type: Contract Job Description: We are seeking an experienced Java Full Stack Developer with 5+ years of hands-on development experience to support application development and...
Senior
Contract work
VDart Inc
Ontario, CA
2 days ago
Performance Test Lead / Senior Performance Engineer || Toronto ON || Fulltime FTE
...Role: Performance Test Lead / Senior Performance Engineer Location: Toronto, ON... ...lead the performance testing lifecycle, develop complex workload models, identify application... .... Scripting/programming knowledge in Java, JavaScript, or Python . Experience integrating...
Senior
Full time
Acestack
Ontario, CA
2 days ago
Senior Vice President of Finance
...exciting newly created role has opened for a highly driven and detail-oriented finance executive. Reporting directly to the CFO, the Senior VP of Finance will supervise the entire accounting department and play a pivotal role in shaping the financial strategy of the...
Senior
Affinity Executive Search
Ontario, CA
2 days ago
Senior Full Stack Software Developer
Job Summary: The Senior Full Stack Software Developer will lead the design, development, and deployment of large-scale production business applications using Java for backend and Angular for frontend development. This role involves reverse engineering and re-platforming...
Senior
vTech Solution
Ontario, CA
2 days ago
Senior Software Engineer - Backend
$124k - $205k
...the team that owns the real-time source of truth for our system, developing predictive algorithms that power accurate passenger information... ...data systems, real-time processing, and designing cloud-based Java services and APIs makes you a strong fit. As a full-stack team,...
Senior
Full time
Work experience placement
Currently hiring
Work at office
Home office
Flexible hours
Swiftly
Ontario, CA
a month ago
Senior Staff Accountant
Job description: We are seeking a detail-oriented Senior Staff Accountant to join a dynamic construction and real estate team. This role is to replace a current employee and offers the opportunity to make an immediate impact across multiple entities.Key Responsibilities...
Senior
Immediate start
Affinity Executive Search
Ontario, CA
10 hours ago
Senior Full Stack Engineer
Senior Full Stack Engineer Location: Toronto, ON Job Type: Full Time Work Model: Onsite Roles and Responsibilities Design, develop, and maintain high-quality, maintainable Java applications and services using clean code principles and established...
Senior
Full time
Acestack
Ontario, CA
2 days ago
Senior Design Engineer
...Leads a design team to perform or manage the preparation of site plans, including preparing grading plans to balance earthwork, developing stormwater capture and conveyance design, and ensuring vehicular access to pumps, wells, treatment systems, and conveyance system...
Senior
Essel Environmental
Pomona, CA
20 hours ago
Senior Engineer III
...Job Title: Senior Engineer III Location: Pomona, CA 91768 / Hybrid 2 days in office Duration: 12 Months Assignment Shift/Hours... ..., PLS-Pole, SPIDAcalc, and related engineering software. * Develop and review engineering packages for overhead line and pole/foundation...
Senior
Work at office
Shift work
Spectraforce Technologies
Pomona, CA
3 days ago
Senior Electrical Engineer
...Senior Electrical Engineer Are you an experienced Senior Electrical Engineer looking for a new opportunity to showcase your skills... ...manage electrical engineering projects from start to finish Develop electrical designs, plans, and specifications Review and approve...
Senior
For contractors
Essel Environmental
Pomona, CA
1 day ago
Tax Senior
...Tax Senior Our firm is seeking a motivated Tax Senior to join our growing tax department. This individual will work closely with managers and partners to prepare and review tax returns, assist with tax planning projects, and serve as a key point of contact for clients...
Senior
gpac
Ontario, CA
1 day ago
Tax Senior
Job Title: Sr. Tax Location: 100% onsite Upland, CA Pay Rate: 85,000 - 95,000 base plus commissions (OTE up to 160K-180K) Schedule: M-F Type: Direct Hire Duties: -Tax Preparation: Prepare and review individual, corporate, partnership, and other types of...
Senior
Base plus commission
Local area
Ledgent
Upland, CA
3 days ago
Senior LVN Care Manager - Chronic Care Leadership
BLEHEALTH in Pomona, CA is seeking a Lead Care Manager Licensed Vocational Nurse (LVN) to work collaboratively with chronically ill members and their families. The role involves coordinating care, advocating for members, and managing relationships with healthcare providers...
Senior
Local area
BLEHEALTH
Pomona, CA
2 days ago
Senior Director, Finance & Strategy — Hybrid Leader
Associated Students, Inc. Cal Poly Pomona (ASI) seeks a Senior Director of Finance and Business Strategy to lead long-range financial planning, investment stewardship, and organizational sustainability. This executive role reports to the executive director and collaborates...
Senior
Sacbar
Pomona, CA
4 days ago
Senior Plans Examiner: Building Codes & Compliance
$25 - $65 per hour
A consulting firm is seeking an experienced Plans Examiner in Upland, California. This role involves examining building plans for compliance with established codes, providing information to clients, and coordinating with other departments. Candidates should have strong ...
Senior
BPR Consulting Group LLC
Upland, CA
5 days ago
Senior Plans Examiner: Building Codes & Compliance
$25 - $65 per hour
A consulting firm in California is looking for an experienced Plans Examiner to ensure compliance with building codes. This role involves reviewing plans, coordinating with various departments, and assisting at the permit counter. Candidates should have at least two years...
Senior
BPR Consulting Group, LLC
Chino, CA
5 days ago
Corporate Senior Financial Analyst
Job description: We are looking for a Corporate Senior Financial Analyst to join a growing Corporate Finance team in Ontario, CA. This... ...analysis across diverse real estate and construction projects.Develop detailed financial models for acquisitions, investments, and new...
Senior
Affinity Executive Search
Ontario, CA
10 hours ago
Senior Multi-State Payroll Administrator (UKG Ready)
A leading payroll service provider is seeking an experienced HR Payroll Administrator to manage end-to-end payroll operations across the United States. This role requires a minimum of 5 years of payroll experience, particularly in a multi-state environment, along with strong...
Senior
Confidential
Upland, CA
1 day ago
Compassionate Senior Living Housekeeper
Oakmont of San Antonio Heights, part of Oakmont Management Group, is seeking a dedicated housekeeping team member in California to maintain resident apartments and public areas while ensuring safety and cleanliness. Ideal candidates will have some housekeeping experience...
Senior
Oakmont Management Group
Upland, CA
3 days ago
Audit Senior - State and Local Government
$80k - $131k
...communities, and each other.CLA is currently seeking an Audit Senior to join our State and Local Government (SLG) practice in our West... ..., and report on accounting, auditing, and related issues and developments.Schedule, delegate, and train team members to help them build...
Senior
Full time
Local area
CliftonLarsonAllen
Ontario, CA
2 days ago
Senior Maintenance Technician
$35 - $40 per day
...Senior Maintenance TechnicianWe are seeking a skilled Senior Maintenance Technician to join our team in Northern Orange County, CA. They've been in business since 2019, and co-pack a variety of different beverages (coffee, tea, batch cocktails, and other functional beverages...
Senior
Immediate start
Day shift
gpac
Pomona, CA
3 days ago
Senior Assistant Store Manager
$20.9 - $21.15 per hour
...the Store Manager in the various tasks involved in the overall operation of a store, ensuring maximum sales and profitability by developing staff, controlling expenses and shrinkage as well as all aspects of merchandising and inventory control in adherence with all Company...
Senior
Hourly pay
Local area
Spencer Gifts
Montclair, CA
2 days ago
Compassionate Senior Living Housekeeper
...a focus on courtesy and resident well-being. The successful candidate will have housekeeping experience, be at least 18, and possess strong customer service and communication skills to interact with residents, families, and staff. #J-18808-Ljbffr Oakmont Senior Living
Senior
Oakmont Senior Living
Upland, CA
5 days ago

Do you want to receive more vacancies?

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