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Added 24 days ago
Staff Data Infrastructure Engineer
Faire
Toronto, ON · Kitchener, ON
We are hiring a Staff Engineer to own that plumbing. Concretely, this means the path data takes out of our production databases (CockroachDB and MySQL) and into a place where analysts and…
Added 25 days ago
PS
Senior Java Microservices Engineer
Publicis Sapient
Calgary, AB
- Full-time
We are looking for highly skilled Senior Java Microservices Engineer to join a strategic client engagement in Calgary. We are looking for a hands-on senior engineer who combines strong…
Added 25 days ago
TC
Infra / Cloud & GenAI Architect
Tata Consultancy Services
Calgary, AB
- Full-time
Have Senior plus years of experience in design and implementation of Cloud technologies primarily Microsoft Azure and AWS
Added 25 days ago
K
Senior Full-Stack Software Engineer - AI-Native Engineering, Java & React
Kaseya
Toronto, ON
- Full-time
Senior Full-Stack Software Engineer - AI-Native Engineering, Java & React
Added 25 days ago
Senior Full-Stack Software Engineer - AI-Native Engineering, Java & React
Kaseya Careers
Toronto, ON
Senior Full-Stack Software Engineer - AI-Native Engineering, Java & React
Added 25 days ago
PG
Senior Java Microservices Engineer
Publicis Groupe Holdings B.V
Calgary, AB
- Full-time
We are looking for highly skilled Senior Java Microservices Engineer to join a strategic client engagement in Calgary. We are looking for a hands-on senior engineer who combines strong…
Added 26 days ago
Software Engineer II, Toast International
Toast
ON
In this role, you will work hands-on with distributed microservices in Java and Kotlin - delivering high-impact capabilities such as payment integrations, messaging services, and core…
Added 26 days ago
Senior Software Engineer, Backend - Toast International
Toast
ON
Deep proficiency in Java or Kotlin, relational and NoSQL databases (e.g., PostgreSQL, DynamoDB), and event-driven architectures (Pulsar / Kafka / AWS).
Added 26 days ago
D
Senior Java Software Engineer
Dexian
Mississauga, ON
- Contract
We are seeking an experienced Senior Java Backend Developer with 10+ years of software development experience and strong expertise in Java, Spring Boot, REST APIs, Microservices, and Cloud…
Added 26 days ago
PS
Senior Software Engineer – Full Stack
Publicis Sapient
Toronto, ON
- Full-time
As a Senior Full Stack Developer, you will design and build scalable, high-performing applications that support complex, business-critical and transactional platforms. You will work across…
Added 27 days ago
A
Senior Software Engineer
Autodesk
Toronto, ON · AMER - Canada - Ontario - Toronto - University Ave
- Full-time
Build backend services using modern languages such as Go, Java, or Python
Added 27 days ago
B
Senior Java Software Engineer
Bounteous
Montreal, QC
- $100,000 to $115,000 CAD / year
- Full-time
We are seeking a talented Java Backend Developer to design, develop, and maintain scalable enterprise applications. The ideal candidate will have strong hands-on experience with Java,…
Added 1 month ago
C
Senior Database Engineer (Snowflake)
Cvent
Fredericton, NB
- Full-time
Cvent is seeking a Senior Database Engineer with deep Snowflake expertise to help design, manage,
Added 1 month ago
O
Senior Software Engineer, PAM
Okta
Toronto, ON
- $136,000 to $187,000 CAD / year
- Full-time
We're looking for a Senior level Platform Engineer to join a team of highly skilled and talented team players who are proud of what they own and deliver. Our elite team is fast, creative,…
Added 1 month ago
Senior Software Engineer, PAM
Okta
Toronto, ON
We're looking for a Senior level Platform Engineer to join a team of highly skilled and talented team players who are proud of what they own and deliver. Our elite team is fast, creative,…
Added 1 month ago
I
Lead Java Developer
INFOYA
Toronto, ON
- $110,000 to $115,000 CAD / year
- Full-time
Developer, Technical Lead, or senior engineer with ownership of design
Added 1 month ago
H
Senior Software Developer - Java
Highspring
Montreal, QC
- Full-time
We are seeking a Senior Java Developer to join a Highspring delivery team and contribute to the design, development, and evolution of enterprise-scale backend solutions. This role is ideal…
Added 1 month ago
C
Senior Software Engineer II, KYC
Carta
Waterloo, ON
- Full-time
The Tech Stack: You have experience with (or a desire to learn) our core technologies: Python, Django, React, Postgres, and Kafka. We also utilize Java, gRPC, and AWS.
Added 1 month ago
C
Senior Software Engineer II, KYC
Carta
Toronto, ON
- Full-time
The Tech Stack: You have experience with (or a desire to learn) our core technologies: Python, Django, React, Postgres, and Kafka. We also utilize Java, gRPC, and AWS.
Added 1 month ago
ES
Software Engineering Team Lead
Exchange Solutions
Toronto, ON · Greater Toronto Area, Canada
- Full-time
As a Team Lead at Exchange Solutions, you are the senior hands-on engineer on your team, delivering a product area of our platform. You set the technical standard in the code your team…
Added 1 month ago
E
Sr. Software Engineer - Fullstack
eBay
Toronto, ON
- Full-time
We are looking for a Senior Software Engineer – Full Stack with 6+ years of professional software development experience to help build a new, scalable authentication platform.
Added 1 month ago
Senior Software Engineer II, KYC
Carta
Toronto, ON · Waterloo, ON
The Tech Stack: You have experience with (or a desire to learn) our core technologies: Python, Django, React, Postgres, and Kafka. We also utilize Java, gRPC, and AWS.
Added 1 month ago
ND
Tech Consultant - Senior Full-Stack Engineer
NTT DATA North America
Vancouver, BC
- Other
We are seeking an experienced Senior Full Stack Engineer to design, develop, and deliver scalable, secure, and high-performing enterprise applications. The ideal candidate should have…
Added 1 month ago
TC
Senior Java Software Engineer
TSR Consulting
Mississauga, ON
- Contract
We are seeking a highly skilled and passionate Senior Java Backend Developer to join our engineering team as a Senior Individual Contributor. In this role, you will be responsible for…
Added 1 month ago
JG
Senior Core Java Engineer
J&M Group
Montreal, QC
- Contract
We are seeking a Senior Core Java Engineer to design, develop, and support high-performance, scalable enterprise applications. The ideal candidate will have strong expertise in Core Java,…

Closed listing

Aptino, Inc.

Senior Java & Apache Spark Developer

Quebec, QC, Canada

Contract

This opening has closed.

The original listing is kept below for reference.

Find open jobs More jobs with this employer

About employer

Job details

Job type: Contract
Closing date: Oct 15, 2026
Posting language: English
Posted: Sep 15, 2026

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Original job description

Archived listing. The details below describe a past opening.

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.

kashish.kulbhaje@aptino.com / kashish.kulbhaje@aptino.biz

Contact No - 817 330 7081

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

kashish.kulbhaje@aptino.com

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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