Sr Java Developer

Full-time

Acestack

Ontario, CA

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 high-performance backend services for a capital markets environment. The role requires strong expertise in Java, Spring Boot, microservices, event-driven architecture, database performance, and automation.

Key Responsibilities

Architect and develop backend services using Java and Spring Boot with a focus on performance, scalability, and reliability.
Design and maintain microservices across enterprise infrastructure.
Implement event-driven workflows using Solace messaging .
Ensure data consistency and efficient persistence using Hibernate ORM and SQL databases.
Design APIs and service contracts in collaboration with cross-functional teams.
Participate in code reviews and promote coding standards and knowledge sharing.
Optimize database queries and application performance for low-latency trading systems.
Develop and maintain Python automation scripts for deployment, testing, and operational workflows.
Troubleshoot complex backend issues and contribute to production support activities.
Document technical solutions and participate in architecture and design discussions.

Required Skills & Experience

Strong proficiency in Java for backend development and production-grade application design.
Solid experience with Spring Boot and the Spring ecosystem , including dependency injection and configuration management.
Hands-on experience with Solace messaging and event-driven architectures.
Strong knowledge of microservices design patterns and inter-service communication.
Hands-on experience with Hibernate ORM .
Strong SQL skills covering database design, optimization, and query performance tuning.
Experience writing Python scripts for automation, testing, and operational tasks.
Familiarity with Claude/AI integration for backend automation and optimization is preferred.

Additional Qualifications

Strong problem-solving and analytical skills.
Ability to work effectively in a fast-paced, collaborative environment.
Excellent communication and technical documentation skills.
Ability to understand and communicate complex technical solutions clearly.
Experience in Capital Markets or financial services 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 Sr Java Developer in Ontario, CA vacancy

Senior Java Developer
Senior Java Developer 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...
Senior
Full time
Acestack
Ontario, CA
2 days ago
Software Developer - Full Stack - Senior (JAVA & Angular)
...Job Title: Software Developer - Full Stack Senior (JAVA & Angular) Location: Toronto / St. Catharines Work Model: Onsite Duration: 6 months Extension: 1 Time Must Haves ~8+ years of experience developing large-scale, production business...
Senior
Innosystech Inc
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 Backend developer
Java Backend developer Job Type: Full Time Location: Toronto, ON Work Model: Onsite / 4 Days Primary Skills: Java & OCP, CI/CD & GitHub Actions, Oracle SQL & AWS Job Description We are seeking an experienced Java Backend developer with strong...
Suggested
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
Backend Java Developer
...Senior Backend Java Developer (Bilingual: English/Spanish) Location: Scarborough, ON (3 days onsite required weekly NO EXCEPTIONS) Rate: Up to $55/hr on C2C Experience: 8-12 years Type: Contract/Full-time (specify as per your arrangement...
Full time
Contract work
Work experience placement
3 days per week
Hirematic Talent Solutions
Ontario, CA
2 days ago
Java Fullstack Developer Lead
Java Fullstack Developer Lead Job Type: Full Time Location: Toronto, ON Work Model: Onsite / 4 Days Primary Skills: Java & Spring Boot, React, Microservices & REST APIs Job Description We are seeking an experienced Java Fullstack Developer Lead...
Full time
Acestack
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
Sr Software Quality Engineer (AI Focused)
Sr Software Quality Engineer (AI Focused) Location: Toronto, ON Job Type: Full Time... ..., database, and acceptance testing. Design, develop, and maintain scalable test automation frameworks using Java, Python, or Groovy. Build automated tests for...
Senior
Full time
Acestack
Ontario, CA
2 days ago
Backend Java Developer
...Job Description: ~ Strong experience with Java, J2EE and Multi-Threading • Experience with spring and Spring Boot. • Strong Data Structures + Concurrency. • Experience in raising cases, data accuracy , high performance systems, scalability • Strong experience...
Xforia Inc
San Dimas, CA
1 day ago
Java Web Developer
...few. We have an excellent reputation with the clients. Currently, we are looking for entry-level software programmers, Java Full stack developers, Python/Java developers, data analysts/data scientists, and machine learning engineers for full-time positions with...
Full time
H1b
Remote work
SynergisticIT
Fontana, CA
3 days ago
Sr. Controller
$170k - $220k
...$220,000 a year Job Description Insight Global is looking for a Sr Corporate Controller to join their client's growing team. This person... ...plans with construction timelines. Experience mentoring and developing accounting team, fostering a culture of accountability and...
Senior
Insight Global
Upland, CA
5 days ago
Software Development Senior Analyst
...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 delivery initiatives. The...
Senior
Contract work
VDart Inc
Ontario, CA
2 days ago
Senior Tax Expert - Retail
$32.5 - $36 per hour
Job Description Overview\n Intuit is seeking highly motivated individuals to join our dynamic team as dedicated year-round TurboTax Retail Experts in one of our TurboTax Retail or Flagship locations across the United States. This unique opportunity combines tax expertise...
Senior
Local area
Intuit
Ontario, CA
19 days ago
Sr. Consultant - Infrastructure Risk Management | Toronto, ON | Hybrid | Full-Time FTE
...Sr. Consultant Infrastructure Risk Management | Toronto, ON | Hybrid | Full-Time FTE We are seeking a Sr. Consultant Infrastructure... ..., audit findings, risk posture, and remediation status Develop and improve risk, audit, compliance processes, tools, and...
Senior
Full time
Acestack
Ontario, CA
2 days ago
Sr QA Engineer
...Job Title: Sr QA Engineer Location: Toronto, ON Hire Type: Full time/Contract Key must have skills: Manual Testing Native Mobile Testing - iOS and Android (deep hands-on expertise) Strong API Testing Python API Automation Mobile...
Senior
Full time
Contract work
Flexible hours
SFE
Ontario, CA
2 days ago
Hiring: Sr. Cyber Security advisor for Markham, ON (Hybrid)
...Job Title: Sr. Cyber Security advisor Location: Markham, ON (Hybrid) Interview Mode: In-person interview Long Term... ...management and leadership skills in communication, prioritization and developing talent Demonstrated ability to communicate complex issues...
Senior
Long term contract
Key2Source
Ontario, CA
2 days ago
Sr Salesforce Developer
Sr Salesforce Developer Job Type: Full Time Location: Toronto, ON Work Model: Onsite / 4 Days Primary Skills: Salesforce Platform, Financial Services Cloud (FSC), Salesforce Development & DevOps Job Description We are seeking an experienced Sr...
Senior
Full time
Acestack
Ontario, CA
2 days ago
Software Developer - Front End - Senior
...Job Title: Software Developer - Front End - Senior Location: Toronto, Ontario, Canada Work Model: Onsite Duration: 6... ...Haves ~10+ years of demonstrated experience with the use of Java language ~ RXJS - 5+ ~ React- 5+ ~ Javascript - 10+...
Senior
Innosystech Inc
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
Country Growth & Marketing Manager II (Sr. Director Level)
...Job Responsibilities: Develop and execute the country growth strategy to increase customer demand, engagement, and brand loyalty. Lead the overall growth agenda by identifying strategic and operational opportunities that drive profitable business performance....
Senior
Local area
SGS Consulting
Ontario, CA
more than 2 months ago
Aerie - Sr Brand Ambassador (Sr Sales Associate)
...Sr Brand Ambassador As a part-time Sr Brand Ambassador, you bring our brand to life every day! Your goal is to provide everyone who comes in the store with an amazing shopping experience, making their day better than before they came in. You are the face of our company...
Senior
Part time
Seasonal work
Flexible hours
Weekend work
Afternoon shift
American Eagle Outfitters
Ontario, CA
4 days ago
Senior Front End Software Developer
Job Summary: The Senior Front End Software Developer is responsible for designing, developing, and implementing user interface code to... ...Certifications: ~10+ years of demonstrated experience with Java programming language. ~5+ years experience with React, RXJS...
Senior
Full time
vTech Solution
Ontario, CA
2 days ago
Sr. Systems Testing/QA Specialist in Toronto, ON (3 days onsite)
...Job Title: Sr. Systems Testing/QA Specialist Location: Toronto, ON (3 days onsite) Duration: 6 Months Description:... ...related modernization initiatives. These resources will design, develop, and maintain automated testing frameworks and regression suites...
Senior
Amicis Global
Ontario, CA
2 days ago
Sr SAP SuccessFactors Engineer
...Job title : Sr SAP SuccessFactors Engineer Toronto Location - 1140 Bay st, Toronto, ON M5S2B4 Vancouver Location - 1066 West Hastings St., Suite 2300 3 days a week on these locations. What are we looking for? The EMEA Senior SAP SuccessFactors Consultant...
Senior
Permanent employment
Local area
3 days per week
Acunor Inc
Ontario, CA
2 days ago
Performance Test Lead / Senior Performance Engineer || Toronto ON || Fulltime FTE
...LoadRunner . The candidate will lead the performance testing lifecycle, develop complex workload models, identify application bottlenecks, and... ...monitoring tools . Scripting/programming knowledge in Java, JavaScript, or Python . Experience integrating JMeter/...
Senior
Full time
Acestack
Ontario, CA
2 days ago
SENIOR HUMAN RESOURCES GENERALIST - RECRUITMENT/EMPLOYEE ENGAGEMENT
Herman Weissker Power Inc. is a leading company in the construction and engineering industry. We perform engineering & construction work in a variety of market segments. We are headquartered in Chino, CA with business units in LA, Riverside, San Diego and Ventura performing...
Senior
Local area
Kinsley Power Systems
Chino, CA
4 days ago
Sr. Strategic Procurement
$98.9k - $120.8k
Job Description:Position Summary: The Sr. Strategic Procurement is responsible for developing and executing sourcing and supplier strategies that support the development, manufacturing, and distribution of dental products. This role manages complex categories and strategic...
Senior
Full time
Contract work
Work experience placement
Work at office
Local area
Envista
Pomona, CA
1 day ago

Do you want to receive more vacancies?

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