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Aptino, Inc.

Senior Java & Apache Spark Developer

Quebec, QC, Canada

Job type: Contract
Apply by: Oct 15, 2026
Posting language: English
Posted: Sep 15, 2026

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Original job description

Hiring: Senior Java & Apache Spark Developer

Location: Montreal, QC - Onsite

Experience: 7–12+ Years

We are seeking a Senior Java & Apache Spark Engineer to join our engineering team and build scalable, high-performance, data-intensive applications.

Key Responsibilities:

Design, develop, and maintain enterprise-grade Core Java applications.
Build scalable backend services and distributed processing solutions using Java & Apache Spark.
Develop batch and real-time data processing pipelines.
Optimize Spark jobs for performance, scalability, reliability, and resource utilization.
Work with structured, semi-structured, and unstructured data.
Develop complex SQL queries and perform database/query optimization.
Troubleshoot production issues and conduct root-cause analysis.
Participate in architecture, technical design, code reviews, Agile ceremonies, and mentoring.
Leverage AI-assisted development tools, prompt engineering, and GenAI capabilities to improve engineering productivity.
Collaborate with architects, product owners, data engineers, analysts, and business stakeholders.

Required Qualifications:

Bachelor’s degree in computer science, IT, Engineering, Mathematics, or related field.
7+ years of software development experience.
Strong expertise in Core Java (Java 8/11/17+).
Hands-on experience with Apache Spark, Spark SQL, DataFrames/Datasets.
Strong knowledge of distributed systems and large-scale data processing.
Excellent understanding of OOP, design patterns, multithreading, concurrency, and JVM performance tuning.
Strong SQL skills and experience with complex query optimization.
Experience with Oracle, SQL Server, PostgreSQL, or MySQL.
Strong Linux/Unix and Git experience.
Excellent analytical, debugging, communication, and problem-solving skills.

Technical Skills:

Java: Core Java, Collections, Multithreading, Concurrency, JVM Tuning, OOD

Big Data: Apache Spark, Spark SQL, DataFrames, Datasets, Distributed Computing

Databases: SQL, Oracle, SQL Server, PostgreSQL, MySQL, Data Warehousing

DevOps: Git, Maven/Gradle, CI/CD, Linux/Unix, Agile

Preferred / Nice to Have:

Databricks
Delta Lake
Azure Data Platform / AWS / GCP
Kafka / Spark Streaming
Python
Docker / Kubernetes
Airflow
Data Lakehouse architectures
Data governance, security, and compliance
GenAI / LLM application development
Cloud-native architectures

🤖 AI & Modern Engineering

Experience or foundational knowledge in:

AI coding assistants
Prompt engineering
Contextual data management
AI model testing and validation
AI-powered analytics and intelligent automation

🌟 Ideal Candidate

The ideal candidate has proven experience delivering large-scale Java and Spark solutions in enterprise environments, strong distributed-computing expertise, and the ability to independently drive complex technical initiatives.

📩 Interested candidates: Please share your updated resume and contact details.

[email protected] / [email protected]

Contact No - 817 330 7081

Apply About employer

More about this job

Responsibilities

Design and develop enterprise-grade Core Java applications and scalable distributed processing solutions using Apache Spark. Build and optimize batch and real-time data processing pipelines while leveraging AI-assisted development tools to improve productivity.

Requirements

Requires a Bachelor's degree and 7+ years of software development experience with strong expertise in Core Java and Apache Spark. Candidates must be proficient in SQL, distributed computing, and JVM performance tuning.

Skills

Core Java
Apache Spark
Spark SQL
Distributed Systems
SQL
JVM Tuning
Multithreading
OOP
Linux/Unix
Git
DataFrames
Datasets
Data Warehousing
CI/CD
Agile
GenAI

Visa sponsorship

Not detected in the job text

Hiring contact

Kashish Kulbhaje

Hiring contact email

[email protected]

Keywords

Java
Apache Spark
Spark SQL
DataFrames
Datasets
Distributed Computing
JVM Tuning
Multithreading
Concurrency
OOD
SQL
Oracle
SQL Server
PostgreSQL
MySQL
Data Warehousing
Git
Maven
Gradle
CI/CD
Linux
Unix
Agile
Databricks
Delta Lake
Azure
AWS
GCP
Kafka
GenAI

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