Senior Solutions Designer – Enterprise Integration / Java

Toronto, ON, Canada

Contract

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Job details

Job type: Contract
Apply by: Oct 29, 2026
Experience: 10+ years of experience in backend design and development using REST Web Services, Java/JEE, JPA, Hibernate, SQL, PL/SQL, and relational databases.
Posting language: English
Posted: Sep 29, 2026

Original job description

Job Overview

We are looking for a Senior Solutions Designer with extensive experience in backend development, enterprise integration, Java/JEE technologies, and cloud-based integration solutions. The ideal candidate will have strong hands-on expertise designing complex integration solutions and leading technical teams in enterprise environments.

Key Responsibilities & Requirements

10+ years of experience in backend design and development using REST Web Services, Java/JEE, JPA, Hibernate, SQL, PL/SQL, and relational databases.
Strong expertise in Enterprise Integration Architecture, including integration patterns, design principles, best practices, APIs, middleware, and Enterprise Service Bus (ESB) technologies.
Extensive experience with Spring Framework, particularly Spring Integration, including designing and implementing enterprise integration solutions.
Hands-on experience with IBM App Connect Enterprise (ACE) and/or MuleSoft, with strong knowledge of message-oriented middleware and ESB solutions.
Experience with JMS, AMQP, REST, APIs, Message Queues, and related integration technologies, including their implementation within Azure integration environments.
Strong knowledge of Oracle, SQL Server, data modelling, SQL/PL/SQL, and integration with enterprise databases.
Experience designing cloud-based integration solutions, highly available and mission-critical applications, and complex enterprise systems.
Ability to translate business requirements into technical solutions, including requirements analysis, use cases, UML, JEE, Service Bus, ETL, solution prototyping, and technical documentation.
Proven experience leading developers / technical teams, facilitating discussions with both technical and business stakeholders, and delivering solutions within deadlines.
Previous Public Sector experience and familiarity with OPS Enterprise Architecture standards, documentation artifacts, templates, policies, and best practices will be considered an asset.

Key Technologies / Skills

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More about this job

Responsibilities

Design and deliver complex enterprise integration solutions, including cloud-based, highly available, and mission-critical applications. Lead technical teams, translate business requirements into technical designs, and collaborate with business and technical stakeholders to deliver solutions on time.

Requirements

Requires 10+ years of backend design and development experience with Java/JEE, REST services, databases, and enterprise integration technologies. Candidates should have hands-on experience with Spring Integration and IBM ACE and/or MuleSoft, along with technical leadership and solution design capabilities; public sector experience is an asset.

Skills

Java
JEE
Spring Framework
Spring Integration
REST APIs
JPA
Hibernate
SQL
PL/SQL
Oracle
SQL Server
IBM App Connect Enterprise
MuleSoft
Enterprise Service Bus
JMS
AMQP

Visa sponsorship

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Keywords

Java
JEE
Spring Framework
Spring Integration
REST Web Services
JPA
Hibernate
SQL
PL/SQL
Oracle
SQL Server
IBM App Connect Enterprise
MuleSoft
Enterprise Service Bus
JMS
AMQP
Message Queues
Azure Integration
Cloud Integration
ETL
UML
Data Modelling
Enterprise Integration Architecture
Solution Design
System Analysis
Technical Leadership
Requirements Analysis
Public Sector
Relational Databases
Technical Documentation

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