
Senior Data Engineer - PySpark and Apache_GENPAMST
Required skills
- PySpark
- Python
- SQL
- Apache Spark
- ETL
- ELT
- Apache Airflow
- AWS
- S3
- Glue
Nice to have
- supervised machine learning
- feature engineering
- model training
- model evaluation
- Pandas
- NumPy
Role summary
Infosys Data and Analytics (DNA) unit is seeking a Senior Data Engineer with expertise in PySpark and Apache Spark. The role involves designing, developing, and maintaining scalable data pipelines, ETL/ELT processes, and workflow orchestration using tools like Apache Airflow. Responsibilities include working with AWS services (S3, Glue, Redshift, Lambda), data warehousing solutions (Snowflake, Databricks), and relational databases (PostgreSQL, MySQL). The engineer will focus on data transformation, validation, performance tuning, and troubleshooting, preparing data for machine learning, and collaborating with cross-functional teams. Preferred skills include machine learning, data quality frameworks, and specific ML libraries.
Overview
The Infosys Data and Analytics (DNA) unit is at the forefront of transforming data into actionable insights, driving business growth and operational efficiency. We specialize in leveraging advanced AI and analytics to create innovative solutions that address complex business challenges. Our team is dedicated to pioneering the future of data-driven decision-making, enabling organizations to unlock new opportunities and achieve sustainable success. Join us to be part of a dynamic team that is revolutionizing the way businesses harness the power of data and AI. At Infosys DNA, you'll have the opportunity to work with cutting-edge technologies, collaborate with industry experts, and contribute to transformative projects that shape the future of business. We are committed to fostering a culture of continuous learning and growth, ensuring that our team members thrive in a dynamic and supportive environment. If you're passionate about AI and eager to make a significant impact, the Infosys DNA unit is the perfect place for you to grow and excel.Job Description
In the assigned Job Role of Technology Consultant 2, your Area Of Responsibility will be as below:⦁ Contribute to the requirements elicitation process by documenting assigned parts of business requirements, in line with guidance provided
⦁ Facilitate software application design discussions, and document design decisions to guide the technical team towards building software solutions
⦁ Participate in coding and integrate new features or updates into existing applications, with a focus on maintaining system stability
⦁ Conduct code reviews, do changes to the codebase and maintain code repositories
⦁ Implement test strategies, analyse results, and coordinate bug fixes to uphold the software quality standards
⦁ Develop user training programs, documentation, and support frameworks to ensure a smooth transition to new software applications
⦁ Actively participate in resolving production issues and recommend preventive strategies to enhance system reliability
⦁ Maintain detailed records of code, testing techniques, and support activities to enrich the knowledge base and assist other similar projects
Your contribution to the team:
⦁ A collaborative spirit and excellent communication skills.
⦁ The ability to handle end to end SDLC phases from requirement gathering to implementation.
⦁ A knack for translating complex requirements into actionable development tasks.
⦁ A passion for design and hands-on coding experience
⦁ A proactive approach to testing, troubleshooting, and refining our applications.
⦁ The ability to work with cross-functional teams and do software integration.
Required Skill and Experience
• Design, develop, and maintain scalable data pipelines using PySpark, Python, SQL, and Apache Spark.experience in data engineering, big data processing, or a closely related role.
• Strong hands-on proficiency in Python, SQL, PySpark, and Apache Spark.
• Experience designing, developing, and maintaining scalable ETL or ELT data pipelines.
• Experience with Apache Airflow for workflow orchestration and scheduling.
• Hands-on experience with AWS services such as S3, Glue, Redshift, or Lambda.
• Experience working with Snowflake and/or Databricks.
• Proficiency in data transformation, data validation, performance tuning, and troubleshooting.
• Working experience with relational databases such as PostgreSQL or MySQL.
• Ability to process and integrate large datasets across multiple file formats and sources.
• Strong analytical, problem-solving, collaboration, and communication skills
• Build and optimize batch-processing workflows for high-volume structured and semi-structured datasets.
• Develop ETL and data-integration solutions using Databricks, AWS Glue, Apache Airflow, and cloud storage services.
• Ingest, standardize, transform, and validate data from sources such as CSV, JSON, Parquet, transactional systems, and cloud platforms.
• Create automated data-quality checks to improve completeness, consistency, and accuracy of downstream data.
• Optimize Spark workloads and complex SQL queries, including CTEs and window functions, to improve processing and reporting performance.
• Develop and manage Airflow DAGs for workflow scheduling, orchestration, monitoring, and operational reliability.
• Prepare data for machine learning through cleansing, feature selection, feature engineering, and scalable transformation pipelines.
• Support supervised machine learning model development, hyperparameter tuning, evaluation, deployment, monitoring, and retraining.
• Use MLflow for experiment tracking and model lifecycle management where applicable.
• Collaborate with data scientists, analysts, business teams, and engineering stakeholders to deliver reliable data products.
• Troubleshoot pipeline failures, resolve processing bottlenecks, and continuously improve performance and automation.
Preferred Skill and Experience
• Experience with supervised machine learning, feature engineering, model training, and model evaluation.• Hands-on experience with Pandas, NumPy, Scikit-learn, and Matplotlib.
• Experience with MLflow for model tracking, deployment, and lifecycle management.
• Experience implementing data-quality frameworks such as Great Expectations.
• Knowledge of fraud detection, predictive analytics, financial data, billing, or invoice-processing use cases.
• Experience integrating Spark workflows with cloud object storage and optimizing distributed processing.
• AWS Certified Data Engineer - Associate or a comparable cloud/data engineering certification
Additional Required Qualifications
• Bachelor’s degree or foreign equivalent required from an accredited institution. Will also consider three years of progressive experience in the specialty in lieu of every year of education.• This position may require relocation and/or travel to work/project location.
• Candidates authorized to work for any employer in the United States without employer-based visa sponsorship are welcome to apply. Infosys is unable to provide immigration sponsorship for this role now or in the future.
EEO/About Us
Benefits
Along with competitive pay, as a full-time Infosys employee you are also eligible for the following benefits:
- Medical/Dental/Vision/Life Insurance
- Long-term/Short-term Disability
- Health and Dependent Care Reimbursement Accounts
- Insurance (Accident, Critical Illness , Hospital Indemnity, Legal)
- 401(k) plan and contributions dependent on salary level
- Paid holidays plus Paid Time Off
About Us
Infosys is a global leader in next-generation digital services and consulting. We enable clients in more than 50 countries to navigate their digital transformation. With over four decades of experience in managing the systems and workings of global enterprises, we expertly steer our clients through their digital journey. We do it by enabling the enterprise with an AI-powered core that helps prioritize the execution of change. We also empower the business with agile digital at scale to deliver unprecedented levels of performance and customer delight. Our always-on learning agenda drives their continuous improvement through building and transferring digital skills, expertise, and ideas from our innovation ecosystem.
EEO
Infosys provides equal employment opportunities to applicants and employees without regard to race; color; sex; gender identity; sexual orientation; religious practices and observances; national origin; pregnancy, childbirth, or related medical conditions; status as a protected veteran or spouse/family member of a protected veteran; or disability.
Sample Infosys interview questions
- 1
Design a food delivery system like DoorDash.
system designmedium - 2
Aggressive Cows Maximize the minimum distance between aggressive cows in stalls. Input: stalls = [0,4,3,7,10,9], cows = 3 Output: 4 Explanation: Placing the cows at positions 0, 4, and 10 yields a maximum possible minimum distance of 4 between any two cows.
codingmedium - 3
Palindrome After Deleting One Character Determine if a string can be a palindrome after deleting at most one character. Input: s = "abc" Output: FALSE Explanation: Deleting any single character leaves either "ab", "bc", or "ac", none of which result in a valid palindrome.
codingmedium - 4
Encode and Decode Strings Encode a list of strings into a single string and decode it back. Input: strs = ["","hello",""] Output: ["","hello",""] Explanation: Prepends chunk lengths and a delimiter (e.g., "0#5#hello0#") to safely encode and perfectly restore empty strings.
codingmedium - 5
Implement a Trie Implement a Trie for prefix matching. Input: insert("hello"), startsWith("hel") Output: TRUE Explanation: Traverses the Trie nodes to confirm that the prefix "hel" actively exists within the inserted word "hello".
codingmedium
Get started to unlock a personalized interview prep pack for this role.
Similar roles
JAVA Developer with Microservices - TL _AppleInfosys · Texas · Onsite
SQL Server (T-SQL) Developer with PythonInfosys · Jackson Township · Onsite- Data Engineer: Clinical Data Configuration ManagerVeramed · Remote · Remote
Data Engineer, Clinical OperationsBristol Myers Squibb · Princeton, NJ · Onsite
Senior Data EngineerCIBC US · Toronto, ON · Hybrid
Senior Data Engineer – Clinical & Healthcare DataThe Ohio State University · Rincon, GA · Onsite
