Senior Java / Spring Boot Developer

S.i. Systems • Java • SQL • 3 days ago
Smart Apply
Similar jobs
1,972,452open jobs
116,600companies
257,159added this week
Browse all
Salary
≈ $72k – $129k per year (Estimated)
Location
In office (Toronto)
Seniority
Senior
Employment
Contractor

First seen by Alion on Oct 22, 2026.

Overview
Company
Impact
Profile match

S.i. Systems

S.i. Systems is one of Canada's largest IT staffing and talent recruitment agencies, specializing in contract staffing, direct-hire placements, contractor payrolling, and IT project solutions. Headquartered in Calgary, Alberta - with major offices across Toronto, Vancouver, Ottawa, and other key metropolitan centers - the firm connects organizations with highly skilled technology professionals across cybersecurity, software development, cloud infrastructure, enterprise systems, and data analytics. Backed by an extensive nationwide network of pre-screened IT contractors, it supports corporate and public sector clients navigating large-scale digital transformations and complex technical initiatives.
sisystems.com • HQ: Calgary, Canada • IT Staffing & Staff Augmentation • Information Technology • Professional Services • 1001-5000 employees • Est. 2006
Backed by TorQuest Partners

Duration: Until 31 Dec (possibility of extension)

Location: Primarily remote, with onsite presence in the GTA as required.


Join a Gate Appointment Modernization program supporting enterprise transportation and terminal operations workflows across a major North American organization. This role focuses on designing, developing, integrating, and testing Spring Boot backend services and APIs supporting appointment management, booking, reservation validation, and slot selection workflows. The environment includes distributed delivery teams, enterprise integrations, and high-volume transactional application modernization initiatives.

 

Must Haves

  • 7+ years of Java application development within enterprise environments
  • Strong hands-on experience with Spring Boot, RESTful APIs, and microservices
  • Strong SQL and relational database development experience
  • Experience with Azure DevOps, Git-based source control, and CI/CD development practices
  • Education and professional experience in software development or application modernization programs

 

Nice to Have

  • Experience in transportation, logistics, terminal operations, booking, reservation, or appointment-management platforms
  • Experience developing applications involving high-volume transactional workflows
  • Experience with application security, authentication/authorization, and enterprise API security patterns
  • Experience working with distributed frontend, backend, and integration teams
  • Experience working within Agile/Scrum delivery teams

 

Responsibilities

  • Design and develop scalable backend services using Java and Spring Boot
  • Develop and maintain REST APIs and microservices supporting gate appointment functionality
  • Implement backend business logic supporting appointment creation and management workflows
  • Support integrations required for booking, reservation, and gate appointment functionality
  • Develop unit and integration tests and support system and integration defect resolution
  • Troubleshoot application, API, and integration issues across development and test environments
  • Participate in solution design, code reviews, sprint planning, refinement, and demos
Disclaimer:
AI may be used in evaluating candidates.
This posting is for an existing vacancy.
Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
1,972,452 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Backend
Similar stack
Same company
Toronto
$74k – $98k per year • Equity • In office • Internship • 1+ year exp • Bachelor's Degree • Milpitas
Python
AI/ML
Machine Learning
DevOps
CI/CD
Docker
Linux
Apply
≈ $57k – $171k per year (Estimated) • In office • Full-Time • 5+ years exp • Doha
Python
Java
Python
Boto3
Java
Spring Boot
Apache Camel
Apply
$97k – $145k per year • Hybrid • Full-Time • 5+ years exp • Bachelor's Degree • Richmond
SQL
COBOL
COBOL
CICS
JCL
Databases
IMS
Management
Agile
Scrum
Kanban
Apply
$47k – $97k per year (gross) • Remote (Lithuania) • Full-Time • Vilnius • Kaunas
Go
Databases
MySQL
Redis
DevOps
Rest API
gRPC
Docker
Kubernetes
Apply
$96k – $133k per year • Remote (United States) • Full-Time • 6+ years exp • United States
JavaScript
PHP
SQL
Databases
PostgreSQL
MS SQL
AI/ML
Copilot
Cursor
Claude
Frontend
JQuery
DevOps
Red Hat
Jenkins
Bitbucket
GitHub
Linux
Unix
DNS
VPN
Cybersecurity
SonarQube
Checkmarx
HIPAA
Management
Agile
Scrum
UML
Apply
≈ $14k – $31k per year (Estimated) • Remote (EAEU) • 2+ years exp • Moscow
JavaScript
SQL
DevOps
Rest API
SOAP
Management
BPMN
QA
Postman
Apply
≈ $32k – $76k per year (Estimated) • In office • Moscow
JavaScript
PHP
TypeScript
SQL
1C
PHP
Yii
Laravel
Symfony
Bitrix
Xdebug
Frontend
Vue.js
Angular
React.js
Sass
DevOps
Rest API
Git
Gitflow
SOAP
QA
Swagger
Apply
Hybrid
JavaScript
SQL
C#
C#
ASP.NET Core
Entity Framework Core
Databases
MS SQL
Frontend
Bootstrap
React.js
DevOps
Rest API
Azure
Git
Apply
≈ $13k – $31k per year (Estimated) • In office • Full-Time • 5+ years exp • Bengaluru
Python
AI/ML
Text-to-Speech
DevOps
Rest API
OpenShift
Helm
GitHub Actions
WebRTC
Prometheus
CI/CD
Jenkins
Docker
Kubernetes
Grafana
GitLab
Cybersecurity
Wireshark
QA
Pytest
Robot Framework
Apply
≈ $21k – $50k per year (Estimated) • In office • 3+ years exp • Bachelor's Degree • Debrecen
Python
JavaScript
TypeScript
SQL
Databases
Snowflake
Frontend
Angular
DevOps
Azure
AWS
Apply
≈ $85k – $147k per year (Estimated) • In office • Full-Time • Toronto
DevOps
Azure
AWS
Apply
≈ $74k – $134k per year (Estimated) • In office • Contractor • Toronto
Python
DevOps
Rest API
CI/CD
AWS
GitHub
Apply
≈ $88k – $151k per year (Estimated) • In office • Contractor • Toronto
Java
AI/ML
RAG
Apply
≈ $71k – $127k per year (Estimated) • In office • Contractor • Edmonton
Apex
Apex
Lightning Web Components
DevOps
Rest API
SOAP
Apply
≈ $68k – $122k per year (Estimated) • In office • Secret • Contractor • Ottawa
JavaScript
TypeScript
C#
C#
.NET
Frontend
Angular
Management
Agile
Apply
≈ $73k – $151k per year (Estimated) • Hybrid • Full-Time • Toronto • New York • San Francisco
Python
JavaScript
Frontend
React.js
Mobile
React Native
Apply
≈ $72k – $148k per year (Estimated) • In office • Full-Time • Bachelor's Degree • Toronto
Python
C++
C++
TensorFlow C++
Qt
AI/ML
MLFlow
TensorFlow
PyTorch
DevOps
GCP
Git
AWS
Docker
Linux
MedTech
ISO 13485
ISO 14971
IEC 62304
Design Controls
Verification & Validation
Apply
≈ $44k – $88k per year (Estimated) • In office • Toronto
Apply
≈ $61k – $109k per year (Estimated) • In office • 5+ years exp • Toronto
Management
Microsoft Project
Jira
Apply
National IT Leader 1 day ago
≈ $50k – $119k per year (Estimated) • In office • Secret • 10+ years exp • Bachelor's Degree • Toronto
Apply
See all jobs
This is one of many
1,972,452 more open roles from verified company boards, updated every day.
Browse all jobs Get matched roles