First seen by our source: 25 days ago
RQ09605 - Sr. Software Developer - API
@ Source Code
Toronto, Ontario
Overview
Source Code is hiring a Senior API Software Developer in Downtown Toronto for a contract of 8 to 9 months, with possible extension, and three vacancies. The role builds and tests REST APIs and integration solutions, requires 8+ years of API development experience, and requires a CRJMC security clearance before the start date.
Responsibilities:
- Create and use APIs to translate functional specifications into working applications
- Develop programming specifications, UI designs and prototypes
- Write, generate and compile code for data-driven programs
- Conduct unit tests and debug code
Requirements summary:
- 8+ years as an API software developer
- Extensive REST API design, build and consumption experience
- Spring Integration and integration pattern expertise
- Azure microservices and event-driven architecture experience
- Strong SQL and relational database skills (SQL Server, Oracle)
Tools & skills
Source and dates
Source type not verified · manatal
- Employer posting date
- Not provided
- First seen by our source
- 2026-10-12
- Source record updated
- 2026-10-12
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Senior |
| Department | Software development |
| Experience | 8+ years |
| Travel | air: none · ground: none |
| Work setting | Office |
| Position | Mostly sitting |
| Physical demands | physical low · computer high |
| Languages | English |
| Licences & certifications | CRJMC |
| Security clearance | Other clearance |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Source Code
| Field | Value |
|---|---|
| Open jobs on Jobsy | 655 |
RQ09605 - Sr. Software Developer - API
Downtown, Toronto
On-site (hybrid, depending on HM requirements for the project)
3 Vacancies
Contract (8-9 months, possible extension)
Security Level: CRJMC (must get clearance before start date)
- A senior API Software Developer with 8+ years of experience will be responsible for creating and using APIs to translate functional specifications into working and tested applications. This includes developing detailed programming specifications, user interface designs, prototypes, writing and/or generating code, compiling data driven programs, conducting unit tests and debugging code.
Must haves:
- 8+ years of experience as an API software developer
- Extensive experience in designing, building, and consuming REST APIs, including experience with API documentation and testing.
- In-depth knowledge of integration patterns and best practices, including experience designing and building integration solutions using Spring Integration
- In-depth knowledge of microservice architecture and experience building scalable, highly available systems using various Azure Services.
- Hands-On experience in messaging queuing and event-driven architecture.
- Experience with asynchronous communication, multi-threading.
- Knowledge on Integration with Oauth2, JWT, SAML, etc.
- Strong skills in SQL and experience working with relational databases, such as SQL Server, or Oracle.
Nice-to-have:
- Knowledge and experience in Criminal Justice Business and System
- Knowledge of data transformation techniques, such as mapping and normalization, and experience using them in a Spring Integration context.
- Experience with asynchronous communication, multi-threading.
- Ability to transform data between different formats (JSON, XML, CSV).
- Public sector experience
Journal
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