Java Spark Backend Developer

Apptad; Montreal; On-site; CAD 70,000 - 110,000; Full time

Job summary

APPTAD, Inc. in Montreal, Canada is seeking a software engineer to design, develop, test, and deliver high-quality software solutions.

The role emphasizes Java, Python, SQL, and modern database systems with a strong focus on scalability and performance. You will collaborate with cross-functional teams in an Agile environment, implement RESTful APIs and microservices, and contribute to continual process improvements.

Qualifications

• BE / B.Tech / MCA or equivalent.
• Proven software development experience with Java and Python.
• Strong written and verbal communication skills.

Responsibilities

• Develop, test, and maintain scalable applications using Java and Python.
• Design backend solutions with robust database interactions (SQL/DB).
• Write efficient, reusable, and reliable code following standards.

Skills

Java

Python

SQL

Data structures

Algorithms

Multithreading

RESTful APIs

Microservices

Linux

Git

CI/CD

Education

BE / B.Tech / MCA or equivalent

Tools

Spring Boot

Hibernate/JPA

Oracle/MySQL/PostgreSQL/DB2

Job description

In this role, you will be responsible for designing, developing, testing, and delivering high-quality software solutions. The ideal candidate should have strong expertise in Java, SQL, database systems, and Python, along with a willingness to learn and adapt to new technologies.

Responsibilities:

• Develop, test, and maintain scalable and high-performance applications using Java and Python.
• Design and implement robust backend solutions with strong emphasis on database interactions (SQL/DB).
• Write efficient, reusable, and reliable code following best practices and coding standards.
• Analyze business requirements and translate them into technical solutions.
• Work closely with cross-functional teams in an Agile environment to ensure smooth project delivery.
• Perform code reviews, debugging, and troubleshooting to optimize application performance.
• Design and optimize database schemas, queries, and stored procedures for performance and scalability.
• Ensure application architecture aligns with enterprise standards and long-term business goals.
• Continuously explore and implement improvements in system design and development processes.

Minimum Qualifications:

• BE / B.Tech / MCA or equivalent
• Strong written and verbal communication skills
• Proven experience in software development with Java and Python

Preferred Qualifications / Skills:

• Strong proficiency in Core Java, SQL, and Database Management Systems (Oracle, MySQL, PostgreSQL, DB2, etc.)
• Hands-on experience with Python for scripting, automation, or backend development
• Experience in building RESTful APIs and microservices architecture
• Good understanding of Spring Boot, Hibernate/JPA (preferred but not mandatory)
• Solid understanding of data structures, algorithms, and design patterns
• Experience working with multithreaded and high-performance applications
• Strong knowledge of database design, query optimization, and performance tuning
• Familiarity with Linux/Unix environments
• Experience with version control tools (Git) and CI/CD pipelines
• Exposure to unit testing frameworks
• Ability to troubleshoot complex technical issues and provide scalable solutions
• Experience working in an Agile/Scrum development environment
• Exposure to financial domain (nice to have)