Application Developer Software Engineer

Toronto, ON
Hybrid
Posted Oct 13, 2026
1 position

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Employment type: Contract
Experience level: Senior · 5+ years
Minimum education: Bachelor’s degree
Posting language: English
Working hours: 40 hours per week
Seniority: Mid-Senior level
Application method: Direct apply is available

Job summary

Analyze requirements and design, develop, test, and maintain secure, high-performance applications for a large-scale distributed payment system. Perform security scanning and vulnerability remediation, troubleshoot production issues, maintain technical documentation, and communicate with business partners and other stakeholders.

Job details

Job Title: Application Developer Software Engineer Location: Toronto, ON - Canada (Onsite/ Hybrid) Employment Type: CON About Smart IT Frame: At Smart IT Frame, we connect top talent with leading organizations across the USA. With over a decade of staffing excellence, we specialize in IT, healthcare, and professional roles, empowering both clients and candidates to grow together. Job Description: It will be good if candidate has experience in both Java and Python. It will be very helpful if candidate is also familiar with QA responsibilities. According to them a good developer should be able to perform QA as well Software Engineer Application Development What does a successful Application Developer Software Engineer do You will work in a dynamic DevSecOps team involved in full SDLC of application development to support a largescale highly available distributed payment system. We need your technical expertise analytical ability critical thinking clear communication eagerness to collaborate customer first mindset and passion to sustain our growth. Enjoy working with a team of professionals who highly appreciate an open constructive and innovative atmosphere. In this role you can look forward to Your main job duties are Requirement analysis collaborate with business partners to identify analyze and document use cases and technical requirements Design develop implement solutions to meet business and security requirements Unit and integration test build test cases into pipelines Code scanning and fix collaborate with application security teams to perform various code scanning static dynamic penetration opensource component dependencies and fix any revealed vulnerabilities Ongoing impact analysis of various security and industry standards policies procedures and update applications accordingly Solving tracking problems escalated to us Produce technical specifications user manuals configuration dictionaries when needed Maintain clear and effective communication with all stakeholders throughout project lifecycles Keep documentation up to date Basic Qualifications for Consideration Candidates must meet ALL of these to be considered Bachelors degree in Computer Science Software Engineering or equivalent working experience. 5 years of experience in software development with a focus on high performance distributed application development. Proficiency in Java CC Python JavaScript Nodejs Proficient with git GitHub copilot CICD pipeline Master secure coding principles and common patterns of vulnerabilities Deep understanding of Linux internals including processes threads memory management file systems networking signals IPC mechanisms and performance diagnostics Comfortable troubleshooting production issues using native Linux tools. Demonstrated ability to effectively incorporate AI assisted development workflows while maintaining strong engineering judgement code review disciplines security awareness and software quality standards Practices test first development and treat automated testing as a core engineering discipline other than an afterthought Deep understanding of RESTful HTTP JSON to construct systems composed of distributed components Strong experience with SQL, NoSQL databases and ORMs Master cryptography basics TLSv13 knowledge of postquantum algorithms Experience in authentication authorization standards like OAuth 20 and JWT Experience in Web development with a relevant framework Spring, Spring Boot, Apache, Tomcat and a frontend framework React Angular Strong problem solving analytical thinking always ready to collaborate self driven detail oriented effective oral and written communication ability to keep documentation clear concise comprehensive and up to date. Preferred Nice to Have Knowledge in containerization and common cloud platforms eg AWS GCP Comfortable working with OpenSSL and troubleshooting with tools like Wireshark Practical experience in diagrams as code type of tools eg Plant UML Mermaid etc Knowledgeable in PCIDSS PCISSF standards Skills Mandatory Skills : Java Good to Have Skills : Docker, Microservices 📩 Apply today or share profiles at hussain.m@smartitframe.com

What you’ll do

Requirements

Requires a bachelor’s degree in Computer Science, Software Engineering, or equivalent experience, plus at least five years of software development experience focused on high-performance distributed applications. Candidates should have strong programming, Linux, database, security, web development, testing, and CI/CD skills, along with effective communication and collaboration abilities.