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Added 2 mins ago
SI
Java Full Stack Developer (Java + React)
Siri InfoSolutions, Inc.
Mississauga, ON
- $110,000 to $120,000 CAD / year
- Full-time
Job Title: Java Full Stack Developer (Java + React)
Added 32 mins ago
HB
Senior Software Development Engineer in Test
H&R Block Canada
Calgary, AB
- Full-time
Strong programming skills in C#, Java, TypeScript, or Python.
Added 32 mins ago
V
Fullstack Java Developer (w/Angular & Postgres) - Cambridge, ON
VectorVue
Canada
- Full-time
We are seeking a highly skilled Full Stack Developer to take on a critical modernization project: the end-to-end rewrite of our existing legacy Struts application into state-of-the-art…
Added 32 mins ago
TI
PYTHON FULL STACK DEVELOPER WITH JAVA
Tekgence Inc
Mississauga, ON
- Full-time
Java and Python We are seeking a skilled Backend Developer with 5 to 8 years of experience in designing, developing, and maintaining scalable backend applications. The ideal candidate will…
Added 32 mins ago
TI
JAVA DEVELOPER WITH SOLACE
Tekgence Inc
Mississauga, ON
- Full-time
Skills Design, develop, and maintain high-quality Java with Solace / ION / Python applications using SpringBoot. Proficiency in Java core 8+ is a must. Proficiency in Junit. Implement…
Added 32 mins ago
TI
Python full stack developer
Tekgence Inc
Mississauga, ON
- Full-time
Java and Python We are seeking a skilled Python full stack developer with 9+ years of experience in designing, developing, and maintaining scalable backend applications. The ideal candidate…
Added 1 hour ago
IS
QE Lead
Iris Software Inc.
Toronto, ON
- Contract
Strong experience testing REST APIs, microservices and enterprise integrations.
Added 1 hour ago
CL
CCAIP (IVR) Integration Developer
Cloudious LLC
Toronto, ON · North York, ON
- Contract
● IVR Runtime Manager: As an IVR developer or integrator, the person will administer, deploy, and monitor IVR applications and microservices
Added 1 hour ago
MS
Sr .Net developer
Millennium Software and Staffing Inc
Montreal, QC
- Contract
Familiarity with Java, Spring Boot, Spring MVC, and Java-based REST APIs/microservices.
Added 1 hour ago
C
Java Developer
Collabera
Mississauga, ON
- $60 to $75 CAD / hour
- Full-time
We are looking for an experienced Java Developer to design and develop enterprise-scale web applications and cloud-based services. The role focuses on building internal tools and platforms…
Added 3 hours ago
CC
RQ11844 - Software Developer
CCI- Computer Consultants International, Inc.
Toronto, ON
- Full-time
Technology stack : Microsoft Dynamics CRM (backoffice), MuleSoft (middleware) and Java/React (public facing portal)
Added 3 hours ago
M
Senior Java Developer (with LLM expertise)
Miratech
Waterloo, ON
- Full-time
This role bridges high-scale microservices architecture with GenAI. You will help the bank build scalable, resilient, API-driven ecosystems that embed LLMs, agentic workflows, and…
Added 4 hours ago
BC
AI Engineer
BDO Canada
Toronto, ON
- Full-time
Integrate AI capabilities into existing enterprise environments through RESTful APIs, microservices, and cloud‑native architectures.
Added 9 hours ago
AW
Application Development Manager
Agilus Work Solutions
Mississauga, ON
- $140,000 to $155,000 CAD / year
- Full-time
Experience with REST APIs, Microservices, and Enterprise Integrations
Added 10 hours ago
U
CCAIP (IVR) Integration Developer
UST
Toronto, ON
- Full-time
IVR Runtime Manager: As an IVR developer or integrator, administer, deploy, and monitor IVR applications and microservices.
Added 13 hours ago
SE
Software Engineer
SmartSource Electronics
Mississauga, ON
- Full-time
Proficiency in Software Development and Programming, with experience in at least one modern language (e.g., Java, C#, Python, JavaScript/TypeScript).
Added 13 hours ago
U
Directeur principal, Ingénierie logicielle – WFM / Sr Dir. Software Development - WFM
UKG
Montreal, QC
- Full-time
Expertise approfondie en Java, applications web, technologies infonuagiques et applications natives d’intelligence artificielle.
Added 14 hours ago
U
Directeur principal, Ingénierie logicielle – WFM / Sr Dir. Software Development - WFM
UKG
Montreal, QC
- Full-time
Expertise approfondie en Java, applications web, technologies infonuagiques et applications natives d’intelligence artificielle.

Miratech

Senior Java Developer (with LLM expertise)

Waterloo, ON, Canada

Full-time

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Job details

Job type: Full-time
Apply by: May 4, 2027
Experience: 7+ years of experience designing and implementing large-scale enterprise applications.
Posting language: English
Posted: Nov 5, 2026

Original job description

Miratech helps visionaries change the world. We are a global IT services and consulting company that brings together enterprise and start-up innovation. Today, we support digital transformation for some of the world's largest enterprises. By partnering with both large and small players, we stay at the leading edge of technology, remain nimble even as a global leader, and create technology that helps our clients further enhance their business. We are a values-driven organization and our culture of Relentless Performance has enabled over 99% of Miratech's engagements to succeed by meeting or exceeding our scope, schedule, and/or budget objectives since our inception in 1989.

Miratech has coverage across 5 continents and operates in over 25 countries around the world. Miratech retains nearly 1000 full-time professionals, and our annual growth rate exceeds 25%.

Job Description

We are looking for a Senior Java Developer with LLM expertise to lead the technical design, development and integration of core banking application systems for a major financial services client.

This role bridges high-scale microservices architecture with GenAI. You will help the bank build scalable, resilient, API-driven ecosystems that embed LLMs, agentic workflows, and intelligent automation into business processes. Day-to-day, you will implement solutions designed by the architecture team in Java and Spring Boot, build LLM-powered and agentic features, and shape how the wider developer group adopts AI-assisted engineering.

Working Model: This is a hybrid role requiring 2 days per week in a downtown Toronto office.

Responsibilities:

Lead the design and delivery of Java/Spring Boot microservices, establishing API-first design principles, service-to-service communication and secure integration patterns.
Implement solutions designed by architects, turning target designs into production-ready, well-tested services.
Identify, prototype and build automation using AI technologies, and architect backend systems that support LLM integration, Retrieval-Augmented Generation (RAG) and vector databases.
Build agentic workflows and design, test and refine prompts for LLM-powered features.
Design event-driven workflows using streaming platforms such as Kafka.
Ensure solutions fit containerized, cloud-native deployments on Docker, Kubernetes/OpenShift or Azure, delivered through CI/CD pipelines.
Drive formal design reviews, contribute to technology stack selection, and define caching and observability strategies.
Manage application security, including OAuth2/JWT authentication and authorization.
Promote AI-assisted engineering across the developer group, including prompt engineering and the practical adoption of GitHub Copilot to speed up software delivery.

Qualifications

7+ years of experience designing and implementing large-scale enterprise applications.
Deep expertise in Java, Spring Boot, RESTful APIs and gRPC services.
Strong proficiency in Python, prompt patterns, LLM orchestration frameworks such as LangChain or LlamaIndex, and working with vector databases.
Hands-on experience with Kafka, RDBMS/SQL, NoSQL and high-performance caching architectures.
Experience with CI/CD pipelines (Jenkins, GitHub Actions), Docker/Podman, OpenShift/Kubernetes and cloud platforms.
Solid understanding of application security, including OAuth2 and JWT.
Bachelor's degree in Computer Science, Software Engineering, Information Technology or a related field, or equivalent practical experience.

Nice to have:

Experience in banking, financial services or another regulated industry.
Experience with production GenAI solutions, multiple LLM providers, LLM evaluation and agentic workflows.
Familiarity with AI governance, model risk management, privacy controls and responsible AI practices.
Experience with Redis, messaging and streaming services, and Infrastructure as Code.
Experience with security testing, DevSecOps, Agile/Scrum and GitHub Copilot.
Experience mentoring developers and contributing to architecture standards, technical governance and engineering strategy.

Additional Information

We offer:

Culture of Relentless Performance: join an unstoppable technology development team with a 99% project success rate and more than 30% year-over-year revenue growth.
Competitive Pay and Benefits: enjoy a comprehensive compensation and benefits package, including health insurance, and a relocation program.
Work From Anywhere Culture: make the most of the flexibility that comes with remote work.
Growth Mindset: reap the benefits of a range of professional development opportunities, including certification programs, mentorship and talent investment programs, internal mobility and internship opportunities.
Global Impact: collaborate on impactful projects for top global clients and shape the future of industries.
Welcoming Multicultural Environment: be a part of a dynamic, global team and thrive in an inclusive and supportive work environment with open communication and regular team-building company social events.
Social Sustainability Values: join our sustainable business practices focused on five pillars, including IT education, community empowerment, fair operating practices, environmental sustainability, and gender equality.
Miratech is an equal opportunity employer and does not discriminate against any employee or applicant for employment on the basis of race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity, or any other protected status under applicable law.

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More about this job

Responsibilities

Lead the design and delivery of Java and Spring Boot microservices, implementing secure, scalable, API-driven systems and event-driven workflows for a banking client. Build and integrate LLM-powered features, RAG and agentic workflows, while promoting AI-assisted engineering and contributing to architecture, security, and deployment practices.

Requirements

Requires at least seven years of experience designing and implementing large-scale enterprise applications, with deep expertise in Java, Spring Boot, APIs, and strong proficiency in Python and LLM technologies. Candidates should also have experience with databases, Kafka, CI/CD, containers, cloud platforms, and application security, plus a bachelor's degree or equivalent practical experience.

Skills

Java
Spring Boot
Microservices
RESTful APIs
gRPC
Python
Large Language Models
Prompt Engineering
LangChain
LlamaIndex
Vector Databases
Kafka
SQL
NoSQL
Docker
Kubernetes

Benefits

Health Insurance
Relocation Program
Remote Work Flexibility
Professional Development Opportunities
Certification Programs
Mentorship Programs
Internal Mobility Opportunities

Visa sponsorship

Not detected in the job text

Keywords

Java
Spring Boot
Microservices
RESTful APIs
gRPC
Python
Large Language Models
Generative AI
Retrieval-Augmented Generation
Agentic Workflows
Prompt Engineering
LangChain
LlamaIndex
Vector Databases
Kafka
SQL
NoSQL
Redis
Docker
Podman
Kubernetes
OpenShift
Azure
CI/CD
Jenkins
GitHub Actions
OAuth2
JWT
GitHub Copilot
Banking

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