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Contract

J&M Group

Java Spark Developer

Montreal, QC, Canada

Job type: Contract
Apply by: Mar 14, 2027
Posting language: English
Posted: Sep 15, 2026

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Original job description

Key Responsibilities

Develop enterprise-grade applications using Core Java and Apache Spark.
Design and optimize batch/real-time data pipelines and distributed processing workloads.
Develop and tune complex SQL queries and database workloads.
Troubleshoot performance and production issues and implement scalable solutions.
Collaborate with architects, data engineers, product teams, and business stakeholders.
Mentor developers and contribute to architecture, code reviews, and engineering best practices.
Leverage AI-assisted development and prompt engineering to improve productivity and solution quality.

Required Skills

7+ Years Strong Core Java, OOP, multithreading, concurrency, and JVM tuning.
Hands-on Apache Spark, Spark SQL, DataFrames/Datasets.
Strong SQL, database optimization, and large-scale data processing.
Experience with Linux/Unix, Git, Maven/Gradle, CI/CD, and Agile.
Strong problem-solving, communication, and leadership skills.

Preferred Skills

Databricks, Delta Lake, Azure/AWS/GCP, Kafka, Python, Docker/Kubernetes, Airflow.
Experience with Data Lakehouse, cloud-native architectures, and GenAI/LLM applications.
Bachelor's degree in Computer Science, Engineering, IT, Mathematics, or related field.

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More about this job

Responsibilities

Develop enterprise-grade applications and optimize batch and real-time data pipelines using Core Java and Apache Spark. Collaborate with stakeholders to troubleshoot performance issues and mentor developers on engineering best practices.

Requirements

Requires over 7 years of experience in Core Java, Spark, and large-scale data processing with strong SQL skills. A bachelor's degree in a technical field and experience with CI/CD and Agile methodologies are expected.

Skills

Core Java
Apache Spark
Spark SQL
DataFrames
Datasets
SQL
JVM Tuning
Multithreading
Linux/Unix
Git
Maven
Gradle
CI/CD
Agile
Prompt Engineering
OOP

Visa sponsorship

Not detected in the job text

Keywords

Java
Apache Spark
Spark SQL
DataFrames
Datasets
SQL
JVM Tuning
Multithreading
Linux
Unix
Git
Maven
Gradle
CI/CD
Agile
Databricks
Delta Lake
Azure
AWS
GCP
Kafka
Python
Docker
Kubernetes
Airflow
Data Lakehouse
GenAI
LLM
Distributed Processing
Prompt Engineering

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