Description

Introduction

At IBM Software, we transform client challenges into solutions, building the world's leading AI-powered, cloud-native products that shape the future of business and society. We are building the next generation of watsonx.data—a GPU-accelerated, open data lakehouse engineered to deliver category-leading price-performance for analytics and AI workloads. Working in Software means joining a team fueled by curiosity and collaboration, where you'll work deep inside Presto and Spark to build connectors, custom UDFs/UDAFs, optimizer rules, and performance-critical execution paths that shape query throughput and latency for customers at petabyte scale. With a culture that values innovation, growth, and continuous learning, IBM Software places you at the heart of IBM's product and technology landscape. Here, you'll have the tools and opportunities to advance your career while creating software that changes the world.

Your role and responsibilities

As a Software Engineer with deep Presto and/or Spark internals expertise, you will design, develop, test, and deliver connectors, optimizer extensions, and engine-level performance improvements that power the watsonx.data query layer. You will work in an Agile, collaborative environment to understand stakeholder requirements and directly impact query throughput, latency, and reliability at petabyte scale. Your primary responsibilities will include:

• Develop Engine Internals: Build and maintain Presto and/or Spark connectors, operator implementations, optimizer rules, and custom UDFs/UDAFs for open table formats (Iceberg, Delta, Hudi).
• Optimize Performance at Scale: Diagnose and resolve data skew, broadcast-join sizing, shuffle bottlenecks, and memory pressure; tune operator memory, spill thresholds, and off-heap usage using async-profiler and flamegraphs.
• Contribute to CI/CD & Benchmarks: Contribute to the automated CI/CD pipeline and maintain CI benchmarks that guard against regressions in query latency, throughput, and resource consumption.
• Support Production & Debug: Support Presto/Spark deployments on Kubernetes and bare metal, unit-test fixes for engine-related and customer-reported issues, and participate in on-call.
• Collaborate in Agile Environment: Partner with query optimization, storage, GPU acceleration, and AI/ML teams, conduct reviews with measurable acceptance criteria, and document connector interfaces and engine internals.

Required education

None

Preferred education

Bachelor's Degree

Required technical and professional expertise

• Engine Development Experience: 6+ years of professional software engineering, including at least 2 years developing against Presto/Trino or Apache Spark internals.
• Language & Codebase Proficiency: Strong Java or Scala skills with comfort navigating and modifying a large, complex open-source codebase.
• Connectors & Optimizer Work: Hands-on experience building connectors, UDFs/UDAFs, or optimizer extensions, plus working knowledge of Spark/Presto query planning, physical execution, and the operator/stage model.
• Performance & Formats: Experience resolving data skew, shuffle bottlenecks, broadcast-join sizing, and memory pressure at scale; familiarity with an open table format (Iceberg, Delta, or Hudi); JVM tuning in production.
• Communication & Education: Clear written communication—able to file actionable bugs, write design docs, and explain engine trade-offs; Bachelor's degree in Computer Science, Engineering, or equivalent practical experience.

Preferred technical and professional experience

• OSS & GPU Acceleration: Committer or significant contributor to Apache Spark, Trino, or Presto, and experience integrating GPU-accelerated execution (RAPIDS Accelerator, cuDF) into query paths.
• Vectorization & Multi-Tenancy: Familiarity with vectorized execution and columnar formats (Arrow, ORC, Parquet), ML feature and inference pipelines on Spark/Presto, FinOps cost modeling, and multi-tenant deployments with fairness scheduling and workload isolation.

ABOUT BUSINESS UNIT

IBM Software infuses core business operations with intelligence—from machine learning to generative AI—to help make organizations more responsive, productive, and resilient. IBM Software helps clients put AI into action now to create real value with trust, speed, and confidence across digital labor, IT automation, application modernization, security, and sustainability. Critical to this is the ability to make use of all data, because AI is only as good as the data that fuels it. In most organizations data is spread across multiple clouds, on premises, in private datacenters, and at the edge. IBM's AI and data platform scales and accelerates the impact of AI with trusted data, and provides leading capabilities to train, tune and deploy AI across business. IBM's hybrid cloud platform is one of the most comprehensive and consistent approach to development, security, and operations across hybrid environments—a flexible foundation for leveraging data, wherever it resides, to extend AI deep into a business.

YOUR LIFE @ IBM

In a world where technology never stands still, we understand that, dedication to our clients success, innovation that matters, and trust and personal responsibility in all our relationships, lives in what we do as IBMers as we strive to be the catalyst that makes the world work better.

Being an IBMer means you'll be able to learn and develop yourself and your career, you'll be encouraged to be courageous and experiment everyday, all whilst having continuous trust and support in an environment where everyone can thrive whatever their personal or professional background.

Our IBMers are growth minded, always staying curious, open to feedback and learning new information and skills to constantly transform themselves and our company. They are trusted to provide on-going feedback to help other IBMers grow, as well as collaborate with colleagues keeping in mind a team focused approach to include different perspectives to drive exceptional outcomes for our customers. The courage our IBMers have to make critical decisions everyday is essential to IBM becoming the catalyst for progress, always embracing challenges with resources they have to hand, a can-do attitude and always striving for an outcome focused approach within everything that they do.

Are you ready to be an IBMer?

ABOUT IBM

IBM's greatest invention is the IBMer. We believe that through the application of intelligence, reason and science, we can improve business, society and the human condition, bringing the power of an open hybrid cloud and AI strategy to life for our clients and partners around the world.

Restlessly reinventing since 1911, we are not only one of the largest corporate organizations in the world, we're also one of the biggest technology and consulting employers, with many of the Fortune 500 companies relying on the IBM Cloud to run their business.

At IBM, we pride ourselves on being an early adopter of artificial intelligence, quantum computing and blockchain. Now it's time for you to join us on our journey to being a responsible technology innovator and a force for good in the world.

IBM is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, genetics, pregnancy, disability, neurodivergence, age, or other characteristics protected by the applicable law. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

OTHER RELEVANT JOB DETAILS

IBM offers a competitive and comprehensive benefits program. Eligible employees may have access to:

- Healthcare benefits including medical & prescription drug coverage, dental, vision, and mental health & well being

- Financial programs such as 401(k), cash balance pension plan, the IBM Employee Stock Purchase Plan, financial counseling, life insurance, short & long- term disability coverage, and opportunities for performance based salary incentive programs

- Generous paid time off including 12 holidays, minimum 56 hours sick time, 120 hours vacation, 12 weeks parental bonding leave in accordance with IBM Policy, and other Paid Care Leave programs. IBM also offers paid family leave benefits to eligible employees where required by applicable law

- Training and educational resources on our personalized, AI-driven learning platform where IBMers can grow skills and obtain industry-recognized certifications to achieve their career goals

- Diverse and inclusive employee resource groups, giving & volunteer opportunities, and discounts on retail products, services & experiences

We consider qualified applicants with criminal histories, consistent with applicable law.

This position was posted on the date cited in the key job details section and is anticipated to remain posted for 21 days from this date or less if not needed to fill the role.

IBM will not be providing visa sponsorship for this position now or in the future. Therefore, in order to be considered for this position, you must have the ability to work without a need for current or future visa sponsorship.

The compensation range and benefits for this position are based on a full-time schedule for a full calendar year. The salary will vary depending on your job-related skills, experience and location. Pay increment and frequency of pay will be in accordance with employment classification and applicable laws. For part time roles, your compensation and benefits will be adjusted to reflect your hours. Benefits may be pro-rated for those who start working during the calendar year.

Job Title

Software Engineer Presto / Spark Development

Date posted

25-Jun-2026

Job ID

123072

City / Township / Village

San Jose, Austin

State / Province

Texas, California

Country

United States

Work arrangement

Hybrid

Area of work

Software Engineering

Employment type

Regular

Contract type

Regular

Projected Minimum Salary per year

131,000.00

Projected Maximum Salary per year

245,000.00

Position type

Professional

Travel required

No Travel

Company

(0147) International Business Machines Corporation

Shift

General (daytime)

Is this role a commissionable/sales incentive based position?

No



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