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Scope
We are seeking a Senior API Software Developer with 8+ years of experience to design, develop, and maintain scalable RESTful APIs and microservices. The successful candidate will translate functional specifications into reliable applications, perform detailed design and coding, conduct unit testing, and ensure the delivery of high-quality, secure, and performant software solutions.
Key Deliverables
We are seeking a Senior API Software Developer with 8+ years of experience to design, develop, and maintain scalable RESTful APIs and microservices. The successful candidate will translate functional specifications into reliable applications, perform detailed design and coding, conduct unit testing, and ensure the delivery of high-quality, secure, and performant software solutions.
Key Deliverables
- Develop detailed design and specification documents for RESTful APIs (endpoints, models, authentication, error handling).
- Build clean, secure, and scalable REST APIs using Java and Spring Boot, adhering to best practices and standards.
- Design and deploy modular microservices with clear inter-service communication protocols.
- Develop applications using APIs to transform and route data based on business requirements.
- Ensure comprehensive test coverage using JUnit, Mockito, or Test Containers.
- Design and implement efficient database schemas supporting API operations.
- Optimize APIs for performance, scalability, and resource utilization.
- Implement security measures such as OAuth2, JWT, and input validation against OWASP vulnerabilities.
- Create Dockerized applications with configuration files, docker-compose scripts, and (if applicable) Kubernetes manifests.
- Integrate monitoring and logging tools (e.g., Prometheus, Grafana, ELK, Logstash, Splunk).
- Produce clear technical documentation for design, deployment, and operations.
- Participate in code reviews, provide mentorship, and ensure adherence to coding standards.
- Provide weekly or sprint-based progress updates and resolve production issues as required.
- Be available on-call for critical production issues, including weekends if necessary.
- Proven experience designing, building, and consuming REST APIs with documentation and testing.
- Deep understanding of integration patterns and Spring Integration.
- Strong knowledge of microservice architecture and building scalable systems on Azure Services.
- Hands-on experience with messaging queues and event-driven architecture.
- Proficiency in asynchronous communication and multi-threading.
- Strong SQL skills with relational databases (SQL Server, Oracle, etc.).
- Experience integrating with OAuth2, JWT, SAML, etc.
- Knowledge of data transformation techniques (mapping, normalization) in Spring Integration.
- Ability to handle data transformations between JSON, XML, CSV formats.
- Experience in Criminal Justice business systems or government sector projects.
- Strong proficiency in Java and Spring Boot with modern OOP and functional programming techniques.
- Deep understanding of REST principles, HTTP methods, and design best practices.
- Experience with enterprise integration technologies (JMS, AMQP, REST).
- Knowledge of XML technologies (XSLT, XPath).
- Experience with Azure Service Bus and Event Hubs.
- Understanding of security best practices, including authentication, authorization, and encryption.
- Experience with automated testing frameworks and CI/CD.
- Familiarity with container orchestration tools (Kubernetes, Helm).
- Experience with Agile methodologies (Scrum, Kanban).
- Strong communication skills for collaboration with technical and non-technical stakeholders.
- Ability to mentor junior developers and contribute to architectural decisions.
- Strong problem-solving, debugging, and analytical skills.
- Demonstrated ability to deliver high-quality, scalable software in deadline-driven environments.
Key Skills
Ranked by relevance
microservices
restful apis
spring boot
kubernetes
java
sql
xml
functional programming
sql server
prometheus
grafana
docker
oracle
server
splunk
owasp
scrum
junit
cicd
saml
elk
oop
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- Posted
- Oct 31, 2025
- Type
- Contract
- Level
- Mid-Senior
- Location
- Toronto
- Company
- Teckhorizon Inc
Industries
Information Technology & Services
Categories
Engineering
Information Technology
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