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Application Support Java Developer Jobs in Ontario

CA$80K - CA$100K/yr

We are looking for an experienced Java Developer to design, build, and maintain robust, scalable ... Hands on production support experience including application monitoring, incident triage and root ...

Tipperary \n \n \n \n \n \n \n Role Overview \n \n \n \n \n \n \n Senior application developers ... Support the architectural direction and solution specification for new web applications and ...

You will work on a high performing team of Senior Java Developers where you will be joining the ... application. There will be just 1 round of interview. Apply today! \n \n \n \n \n \n

Collaborate with architecture and infrastructure teams to ensure application designs align with the ... Provide Tier 3 production support, diagnosing and resolving high-impact incidents through ...

Lead Java Developer

Mississauga, ON · On-site

CA$120K - CA$170K/yr

Role Summary: We are looking for a Java Engineer to design, build, and support modern web APIs. This role focuses on back-end services (Java/Spring Boot), with API-first, microservices-based ...

Senior Java Developer

Etobicoke, ON · Hybrid

CA$120K - CA$140K/yr

Monitor application performance, identify bottlenecks, and enhance efficiency to improve user ... Provide support through code reviews, technical guidance, and skill development. WHAT WE'RE LOOKING ...

Senior Java Developer

Mississauga, ON · On-site

CA$94K - CA$141K/yr

... application using Java, Spring Framework and Docker Containers Proficient in industry standard best practices such as Design Patterns, Coding Standards, Coding modularity, Prototypes etc. Experience ...

We are seeking a highly motivated and experienced Senior Java Developer to join our dynamic team ... Hands on experience in building an enterprise scale highly componentized application using Java ...

Senior Java Developer

Mississauga, ON · On-site

CA$94K - CA$141K/yr

We are seeking a highly experienced and motivated Lead Java Developer with 6+ years of industry ... Provide advanced technical support for escalated issues from production support team. During a ...

Java Developer, TD Securities

Toronto, ON · On-site

CA$102K - CA$125K/yr

Application Development using Messaging middleware; Two or more of the following: JMS, Complex ... support our colleagues need to thrive both at work and at home. Please be advised that this job ...

Senior Java Developer

Mississauga, ON · On-site

CA$94K - CA$141K/yr

... support on applications to business users Utilize in-depth specialty knowledge of applications ... Proficiency in API development and application security best practices (e.g., OAuth, TLS, PKI ...

Showing results 21-40

Application Support Java Developer information

What cities in Ontario are hiring for Application Support Java Developer jobs?

Cities in Ontario with the most Application Support Java Developer job openings:

Senior Java developer

Ottawa, ON

Full-time

Posted 27 days ago


Job description

We are seeking a senior Java developer to join our team in a full-time employment capacity. This role requires expertise in Java-based systems, along with experience in audio codec integration, VOIP/ROIP protocols, and mission-critical communication systems. The successful candidate will play a key role in the development and enhancement of applications that support military and emergency services communication platforms, ensuring reliability, security, and performance under demanding conditions.
 
Key Responsibilities:
  • Design, develop, and maintain Java applications for use with VOIP/ROIP and digital communication systems.
  • Integrate and optimize audio codecs (e.g., Opus, AAC Audio).
  • Work on SIP, RTP, and other VOIP/ROIP protocols for real-time communication.
  • Collaborate with cross-functional teams to design secure and fault-tolerant communication solutions.
  • Develop and implement features for interoperability with military communication systems.
  • Ensure scalability, low-latency performance, and high availability of communication services.
  • Participate in code reviews, architecture discussions, and technical planning.
  • Regular customer engagement for the purposes of requirements gathering, feature demonstrations, and product support.
Required Qualifications
  • Bachelor’s degree in computer science, Engineering, or a related field.
  • 10+ years of experience in Java development.
  • Located in the Ottawa area or willing to relocate to the Ottawa area.
  • Experience developing distributed client/server environments.
  • In-depth knowledge of VOIP/ROIP technologies (e.g., SIP, RTP, SRTP).
  • Hands-on experience with audio codecs and real-time media processing.
  • Familiarity with radio systems, digital signal processing (DSP), and tactical communication protocols.
  • Strong understanding of network programming and low-level socket communication.
  • Excellent problem-solving, debugging, and performance optimization skills.
 
Preferred Qualifications
  • Experience developing communication software for military, defence, or emergency services.
  • Familiarity with Open SDR (software-defined radio).
  • Active security clearance (Secret or higher).