Job Description Location: Toronto, Ontario – 222 Jarvis Street Work Arrangement: 100% Onsite – 5 Days/Week Contract: September 21, 2026 – March 31, 2027 Extension: Possible, up to 1 additional term Openings: 1 Security Clearance: No clearance required Client: Government Services Integration Cluster, Ministry of Public and Business Service Delivery and Procurement Closing Date: October 5, 2026 at 12:00 PM EST Submission Limit: 1 candidate Position Overview We are seeking an experienced Intermediate Software Developer to support the Government Services Integration Cluster in designing, developing, testing, implementing, and maintaining large-scale, multi-client web applications.

The successful candidate will have strong hands-on experience with Java, Oracle/SQL databases, REST APIs/Web Services, Azure Dev

Ops, microservices, and object-oriented development practices .

The role requires the ability to work closely with both functional and technical teams in an Agile environment and deliver high-quality solutions within aggressive timelines.

Mandatory Skills & Experience Candidates must meet all of the following requirements: 5+ years of experience as a designer and developer working on large-scale, multi-client web applications. 5+ years of hands-on Java development experience with Oracle or SQL databases. 2+ years of hands-on experience with REST APIs / RESTful Web Services.

Experience using Azure Dev

Ops.

Strong knowledge and practical experience with microservice architecture , including the ability to apply core architecture principles to improve product extensibility and maintainability .

Strong understanding of object-oriented programming and coding practices , including: Design patterns Refactoring Clean code Experience with relational and hierarchical database technologies .

Experience using query languages and information retrieval packages .

Experience with communications protocols .

Strong understanding of Agile methodologies .

Knowledge of security gateways and protocols, including: JWT OAuth 2.0 SSL Certificates Key Responsibilities The Software Developer will: Translate technical systems specifications into working, tested applications .

Develop detailed programming specifications and technical solutions.

Write, generate, compile, test, debug, document, and maintain application code.

Design, develop, implement, and maintain enterprise applications.

Conduct unit testing , troubleshooting, debugging, and technical problem resolution.

Troubleshoot technical issues arising during software implementation, conversion, migration, and production operations.

Participate throughout the Software Development Life Cycle (SDLC) .

Collaborate with IT professionals, functional teams, technical teams, project teams, and other developers.

Apply structured methodologies for application design, development, implementation, and maintenance.

Apply appropriate application design patterns and development standards.

Participate in application deployment and provide post-implementation technical support.

Analyze and resolve technical issues within tight timelines.

Elicit and document technical/business information from diverse business stakeholders and Subject Matter Experts.

Participate in design walkthroughs with project teams.





Prepare user and system documentation as required.

Contribute to technical quality assurance and ensure development standards are followed.

Requirements Technical Requirements Java & Application Development 5+ years of hands-on Java development . 5+ years of experience designing and developing large-scale, multi-client web applications .

Strong understanding of object-oriented programming.

Experience with design patterns, refactoring, clean-code principles, application design, deployment, and troubleshooting.

Knowledge of Internet-ready applications .

Experience with structured software development methodologies.

Knowledge/experience with Rapid Application Development (RAD) methodologies. APIs & Architecture 2+ years of hands-on experience developing and working with: REST APIs RESTful Web Services Experience with microservice architecture .

Ability to apply architecture principles to enhance application extensibility, scalability, and maintainability.

Experience with middleware and gateways.

Database 5+ years of Java development experience with Oracle or SQL databases .

Experience with relational and hierarchical database technologies.

Experience using query languages and information retrieval packages.

Strong database development and troubleshooting capabilities.

Dev

Ops Hands-on experience using Azure Dev

Ops .

Experience supporting application deployment, troubleshooting, testing, and implementation.

Security Knowledge and experience with security gateways and protocols, including: JWT OAuth 2.0 SSL Certificates Agile & SDLC Solid understanding of Agile methodologies .

Experience collaborating throughout the complete Software Development Life Cycle.

Ability to work with both functional and technical teams.

General Skills Strong analytical, problem-solving, and decision-making abilities.

Excellent verbal and written communication skills.

Strong interpersonal and collaboration skills.

Ability to develop and present new ideas and conceptualize new approaches and solutions.

Ability to work effectively as part of a large technical team.

Demonstrated ability to work closely with individual team members and cross-functional teams.

Strong systematic problem-solving skills.

Ability to work under pressure and meet aggressive deadlines.

Highly adaptable to changing priorities and requirements.

Strong troubleshooting and technical issue-resolution skills.

Track record of meeting project deadlines and delivering quality solutions.

Public Sector / OPS Experience Prior Ontario Public Service (OPS) or other public-sector development experience is highly desirable.

Candidates with OPS experience should understand or have exposure to:



OPS development standards and processes Public-sector application development environments Enterprise-scale government applications and SDLC practices Additional / Nice-to-Have Experience The following experience will be considered an asset: Experience developing Internet-ready applications .

Experience with RAD methodologies .

Knowledge of Information Management principles, concepts, policies, and practices .

Experience with middleware and security gateways.

Experience reviewing, analyzing, modifying, encoding, testing, and debugging product installation scripts.

Post-implementation application support.

Experience conducting technical/design walkthroughs.

Knowledge of AODA and related accessibility regulations and standards.

Experience preparing user and system documentation.

Experience with Java and Oracle Application Development Framework (ADF) .

Oracle / E-Business Experience – Asset Experience with Oracle E-Business applications is an additional asset, particularly: Impact assessments for Oracle E-Business customizations and extensions.

Oracle database, PL/SQL, SQL, XML, Unix shell scripting, and Oracle Data Integrator (ODI) .

Oracle E-Business modules including: General Ledger (GL) Accounts Receivable (AR) Collections Accounts Payable (AP) Inventory (INV) FND Oracle E-Business table structures related to GL, AR, Collections, AP, INV, and FND. SQL tuning and partitioned tables.

Data warehouse and ETL methodologies. OBIEE .

Account Receivable / Collections conversion experience.

Evaluation Focus Candidates will be assessed across the following areas: Area Weight Core Skills & Experience 40% Technical Skills & Experience 35% Soft Skills 20% Public Sector Experience 5% Important Submission Requirements This is a 100% onsite position.

Candidates must be willing and able to work onsite 5 days per week at 222 Jarvis Street, Toronto.

Mandatory screening checklist Before submitting, confirm the candidate has: 5+ years designing/developing large-scale, multi-client web applications 5+ years hands-on Java development 5+ years Java development with Oracle or SQL database 2+ years REST API / RESTful Web Services experience Azure Dev

Ops experience Microservices architecture experience Object-oriented development / design patterns / refactoring / clean code Agile methodology experience JWT / OAuth 2.0 / SSL Certificates knowledge Relational and hierarchical database experience Query language experience Solid communication and analytical/problem-solving skills Ability to work 100% onsite in Toronto, 5 days/week Prior OPS/public-sector experience is a strong asset but is not mandatory.

Only one candidate can be submitted for this requisition, so candidate quality and alignment with the mandatory requirements are critical.

Requirements Java, Oracle, SQL, REST APIs, RESTful Web Services, Azure Dev

Ops, Microservices, Object-Oriented Programming, Design Patterns, Refactoring, Clean Code, Relational Databases, Hierarchical Databases, Query Languages, Information Retrieval Packages, Communications Protocols, JWT, OAuth 2.0, SSL Certificates, Agile, SDLC, Web Applications, Enterprise Application Development, Middleware, Security Gateways, Unit Testing, Debugging, Troubleshooting, Application Deployment, RAD Methodologies, Internet-Ready Applications, Technical Documentation, Design Walkthroughs, ADF, PL/SQL, XML, Unix Shell Scripting, ODI, Oracle E-Business Suite, SQL Tuning, ETL, Data Warehousing, OBIEE, AODA

📌 Software Developer – Intermediate (Toronto)
🏢 Upstaff
📍 Toronto