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Senior Java Developer Jobs in Waterloo, ON (NOW HIRING)

hireVouch

Senior SW Engineer, Backend

Waterloo, ON

As a Senior Backend Engineer, you will play a critical role in architecting and developing the ... or Java Spring Boot. * Backend Expertise : Proficient in backend development, particularly in ...

Dialpad

Sr. SDET

Kitchener, ON · On-site

Your role As a Sr. SDET in Agentic QA, you will own the test automation and quality frameworks that ... Strong programming skills in Python (preferred), Java, or JavaScript. * Experience testing ...

Purolator

Technology Software Developer

Kitchener, ON · Hybrid

Python, Java * Flutter * Standard HTML/CSS * Terraform and GitHub Actions * Other Cloud data stores ... Senior Manager Technology --- Purolator is an equal opportunity employer committed to diversity and ...

Purolator

Technology Software Developer

Kitchener, ON · Hybrid

Python, Java * Flutter * Standard HTML/CSS * Terraform and GitHub Actions * Other Cloud data stores ... Senior Manager Technology --- Purolator is an equal opportunity employer committed to diversity and ...

Acceldata

Field Engineering Co-Op

Kitchener, ON

CA$20 - CA$30/hr

Work alongside senior field engineers and architects to solve complex platform reliability and data ... Strong programming skills in languages such as Java, Scala, and Python.Knowledge of data structures ...

Targeted Talent

1 - QA Automation Lead

Waterloo, ON · Remote

We are looking for an experienced Senior Quality Automation Engineer for our client. This is a ... Prior experience creating automated testing with Java and Javascript. * Experienced utilizing ...

Targeted Talent

1 - QA Automation Lead

Waterloo, ON · Remote

We are looking for an experienced Senior Quality Automation Engineer for our client. This is a ... Prior experience creating automated testing with Java and Javascript. * Experienced utilizing ...

Targeted Talent

1 - QA Automation Lead

Kitchener, ON · Remote

We are looking for an experienced Senior Quality Automation Engineer for our client. This is a ... Prior experience creating automated testing with Java and Javascript. * Experienced utilizing ...

Targeted Talent

1 - QA Automation Lead

Kitchener, ON · Remote

We are looking for an experienced Senior Quality Automation Engineer for our client. This is a ... Prior experience creating automated testing with Java and Javascript. * Experienced utilizing ...

Sun Life Financial

Staff Engineer

Waterloo, ON · Hybrid

The engineer people pull in when things get messy. As Staff Engineer onProspryou take on the ... senior level ownership and cross team influence * Hands-onlead level expertisewith Java,React (or ...

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Senior Java Developer information

See Waterloo, ON salary details

$62.9K

$116.6K

$160.4K

How much do senior java developer jobs pay per year?

As of May 28, 2026, the average yearly pay for senior java developer in Waterloo, ON is $116,612.00, according to ZipRecruiter salary data. Most workers in this role earn between $98,830.00 and $131,929.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Senior Java Developer, and why are they important?

To thrive as a Senior Java Developer, you need advanced proficiency in Java programming, experience with software design patterns, and a strong grasp of backend development, often supported by a degree in computer science or related field. Familiarity with frameworks like Spring, build tools such as Maven or Gradle, and version control systems like Git, as well as knowledge of cloud platforms, is typically required. Excellent problem-solving, leadership, and communication skills help you guide teams and collaborate effectively. These competencies are crucial for delivering robust, scalable software solutions and driving technical success within development teams.

What are some common challenges Senior Java Developers face when working on large-scale enterprise projects?

Senior Java Developers often encounter challenges such as maintaining code quality across large codebases, managing dependencies between modules, and ensuring optimal application performance. Collaborating with cross-functional teams—including QA, DevOps, and product management—requires clear communication and effective problem-solving. Additionally, staying updated with the latest Java frameworks and best practices is essential for delivering scalable and maintainable solutions in complex enterprise environments.

What are Senior Java Developers?

Senior Java Developers are experienced software engineers who specialize in using the Java programming language to design, develop, and maintain complex applications. They typically lead development teams, oversee project architecture, and ensure code quality through best practices. In addition to strong coding skills, they often mentor junior developers and collaborate with stakeholders to deliver robust software solutions. Their expertise is crucial in building scalable, high-performance applications across various industries.

What is the difference between Senior Java Developer vs Java Software Engineer?

AspectSenior Java DeveloperJava Software Engineer
Required CredentialsBachelor's in CS or related, Java certifications often preferredBachelor's in CS or related, Java certifications beneficial
Work EnvironmentTeam lead roles, project management, mentoringDevelopment-focused, coding, testing, and implementation
Employer & Industry UsageTech companies, finance, e-commerceSoftware firms, startups, enterprise IT
Common Search & ComparisonOften compared for experience level and responsibilitiesSimilar roles with slight variations in scope

The main difference between a Senior Java Developer and a Java Software Engineer lies in their responsibilities and experience. Senior Java Developers typically take on leadership, mentoring, and project management roles, while Java Software Engineers focus more on coding, development, and technical implementation. Both roles require strong Java skills and relevant credentials, but the Senior Java Developer usually has more experience and a broader scope of responsibilities.

What are the most commonly searched types of Java Developer jobs in Waterloo, ON? The most popular types of Java Developer jobs in Waterloo, ON are:
What job categories do people searching Senior Java Developer jobs in Waterloo, ON look for? The top searched job categories for Senior Java Developer jobs in Waterloo, ON are:
What cities near Waterloo, ON are hiring for Senior Java Developer jobs? Cities near Waterloo, ON with the most Senior Java Developer job openings:
Senior Java Developer jobs near you
Infographic showing various Senior Java Developer job openings in Waterloo, ON as of May 2026, with employment types broken down into 44% Full Time, and 56% Contract. Highlights an 100% In-person job distribution, with an average salary of $116,612 per year, or $56.1 per hour.
Senior Software Engineer - Open Data Platform (ODP)

Senior Software Engineer - Open Data Platform (ODP)

Acceldata

Kitchener, ON • On-site, Remote

CA$100K - CA$140K/yr

Full-time

Medical, Dental, Vision, PTO

Posted 6 days ago

Job description

ABOUT US
Acceldata is the market leader in Enterprise Data Observability. Founded in 2018 and backed by top investors including Insight Partners, March Capital, Lightspeed, Sorenson Ventures, Industry Ventures, and Emergent Ventures, we are a Series-C funded company headquartered in Silicon Valley.
 
Our Enterprise Data Observability Platform-the first of its kind-helps enterprises build and operate world-class data products by ensuring data is reliable, trusted, and ready to power today's most critical technologies, including AI, LLMs, Analytics, and DataOps.
 
Delivered as a SaaS solution, Acceldata is trusted by leading global organizations such as HPE, HSBC, Visa, Freddie Mac, Manulife, Workday, Oracle, PubMatic, PhonePe (Walmart), Hershey's, Dun & Bradstreet, and many more.

ABOUT THE ROLE
We are seeking a Senior Software Engineer with at least 7 years of experience in distributed systems or data platform development. In this role, you will design, build, and scale components of the Acceldata Open Data Platform (ODP), contributing to open-source technologies and solving real-world challenges in large-scale data infrastructure.
 
The Acceldata Open Data Platform (ODP) brings together the best of the modern data ecosystem, including technologies such as Hadoop, Spark, Hive, Trino, Kafka, NiFi, MLFlow, Pinot, and more, to help organizations run complex analytical workloads at scale while maintaining flexibility and avoiding vendor lock-in.
 
Product Link: https://www.acceldata.io/open-data-platform
WHY JOIN US
At Acceldata, you won't just be writing code; you'll be shaping the foundation of modern data platforms used by some of the world's largest enterprises. You'll work alongside seasoned engineers and open-source contributors who are passionate about solving complex distributed systems challenges at scale. Every project you take on will directly impact how a data platform is managed, observed, and optimized across hybrid and cloud ecosystems.
 
This is your chance to build technology that truly matters, software that drives mission-critical pipelines, scales to petabytes, and influences the open-source community at large. We move fast, value creativity, and reward innovation. If you're looking for a place where your ideas can become real systems and your work can be seen, used, and respected across the data ecosystem - Acceldata is where you belong.
RESPONSIBILITIES
  • Lead the design, development, and implementation of complex features for the Open Source Data Platform.
  • Architect scalable and robust solutions, ensuring high performance and reliability.
  • Mentor and guide junior software engineers, fostering a culture of continuous learning and growth.
  • Drive technical discussions and provide expertise in technology selection and best practices.
  • Contribute to the strategic direction of the Open Source Data Platform project.
  • Perform thorough code reviews, ensuring code quality, maintainability, and adherence to standards.
  • Work across diverse environments: Bare Metals, VM, and Kubernetes.
REQUIREMENTS
  • Mandatory Linux proficiency for automation and efficient use of Linux shortcuts for troubleshooting.
  • Familiarity with Kubernetes, Docker, and cloud environments.
  • Ability to manage threads and debug issues related to deadlocks or memory leaks.
  • Strong comprehension of garbage collection tuning and management challenges.
  • Extensive hands-on experience with advanced Java, Scala, or Python, developed and prepared project build models associated with Maven, Gradle, or SBT.
  • Experienced in Github & Nexus management and its use cases.
  • Profound understanding of software engineering, database concepts, virtualisation and architectural patterns.
  • Comprehensive knowledge and a history of significant contributions to past projects.
  • Past experience of mentoring junior engineers in handling critical issues or tasks.
  • Proven capability in fixing bugs and developing new features within complex software systems.
  • Experience working with Big data stack or its ecosystem components, utilizing appropriate frameworks for application development.
  • Demonstrated fluency in English communication.
  • Ability to communicate effectively with senior leadership, presenting technical accomplishments and strategic insights.
  • Strong capacity for collaboration with internal teams, external contributors, and the broader open-source community.
PREFERRED SKILLS
  • Demonstrated history of contributions or a committer role in Apache projects (e.g., bug fixes, feature development, documentation).
  • Proficiency in identifying performance bottlenecks within big data applications and frameworks.
  • Experience with the migration of applications, Hadoop-based distributions, or data streaming platforms.
  • Familiarity with distributed systems and architectural patterns optimised for scalable data processing.
$100,000 - $140,000 a year
The hiring pay range provides a guide for what we would reasonably pay for the position. Pay is determined by various factors including market demand, applicable skills, work experience and education, location, company budget, and in-demand skill sets.
At Acceldata, we are committed to providing equal employment opportunities regardless of job history, disability, gender identity, religion, race, color, caste, marital/parental status, veteran status, or any other special status. We stand against the discrimination of employees and individuals and are proud to be an equitable workplace that welcomes individuals from all walks of life if they fit the designated roles and responsibilities.
 
#LifeAtAcceldata is all about working with some of the best minds in the industry and experiencing a culture that values an 'out-of-the-box' mindset. If you want to push boundaries, learn continuously, and grow to be the best version of yourself, Acceldata is the place to be! 
 
We also believe in providing our employees with the right tools and resources to help them excel at their jobs. We offer:
- PTO Plan with unlimited negative balance
- RRSP Plan
- Up to 100% employer-paid benefit options for health, dental, and vision coverage
- Supplemental Benefits
- Apple Air Mac Equipment
- Office gym access (includes workout equipment, basketball court, and showers)
- Becoming part of the team that coined the term "Data Observability"!
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. 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.
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