Senior/Principal Engineer – OpenSearch

Dtex Systems; Fremont (CA); On-site; USD 170,000 - 220,000; Full time

Benefits offered by this job

Competitive compensation

Health and wellness benefits

Generous time-off policies

Job summary

Dtex Systems is looking for a Senior Engineer – OpenSearch to join our engineering team in Fremont, California. This role involves developing large-scale OpenSearch clusters and contributing to our Insider Risk Management products. The ideal candidate has over 10 years of software engineering experience, a background in OpenSearch, and is proficient in Python.

The position offers competitive compensation, remote work flexibility, and a values-driven company culture that prioritizes growth.

Qualifications

• Minimum 10 years of software engineering experience.
• Proficiency in data management: ingestion pipelines, field mappings, and cluster integrity.
• Experience migrating large‑scale Elasticsearch deployments to OpenSearch.

Responsibilities

• Lead the development and optimization of large‑scale OpenSearch clusters.
• Design and implement new features for DTEX’s IRM and AI Risk Management products.
• Collaborate with cross‑functional teams and open‑source contributors.

Skills

OpenSearch internals

Data management

Python

Debugging complex issues

Distributed applications

Education

Bachelor's degree in computer science or related field

Tools

AWS

Job description

About the Job:

DTEX Systems is seeking a highly skilled and experienced Senior Engineer – OpenSearch to join our engineering team. In this role, you will lead the development and optimization of large‑scale OpenSearch clusters, contribute to our Insider Risk Management (IRM) and Data Loss Prevention (DLP) products, and actively engage with the open‑source community. You’ll work closely with internal teams, clients, and global collaborators to drive innovation in search technologies.

Key Responsibilities

• Serve as a consultant, advisor, and mentor to internal and external search practitioners.
• Attend client and internal meetings to align technical solutions with business needs.
• Actively contribute to the OpenSearch community and participate in public forums.
• Collaborate with cross‑functional teams and open‑source contributors to drive innovation.
• Design and implement new features, enhancements, and bug fixes for DTEX’s IRM and AI Risk Management products.
• Manage and fine‑tune large‑scale OpenSearch clusters with terabytes of data.
• Apply recommended development and operational expertise to cloud‑hosted OpenSearch environments.
• Rapidly iterate on solutions while maintaining high quality standards.
• Work effectively with a globally distributed team.

Qualifications

• Minimum 10 years of software engineering experience.
• Bachelor's degree in computer science or related field.
• Deep expertise in OpenSearch internals while handling terabytes of data across multiple nodes.
• Proficiency in data management: ingestion pipelines, field mappings, cluster integrity, and search/aggregation tuning.
• Proven experience migrating large‑scale Elasticsearch 6.x clustered deployments to OpenSearch 2.x or above.
• Demonstrates a solid grasp of essential OpenSearch management practices, encompassing index lifecycle management, sharding strategies, JVM heap size configuration, young generation parameters, garbage collection strategy optimization, comprehensive JVM memory oversight, and effective tuning of shard and replica allocation.
• Strong proficiency in Python and good understanding of JVM ecosystems.
• Solid understanding of algorithms, data structures, and software design principles.
• Experience building distributed, high‑throughput, and concurrent applications.
• Hands on experience with major cloud platforms, preferably AWS.
• Skilled in debugging complex issues and engaging with upstream open‑source communities.

Why Join Us?

• Impact at Scale – Build and lead DTEX’s first sales enablement function, shaping how we scale commercial excellence across the world.
• Thriving Company Culture – At DTEX, we foster a values‑driven environment that prioritizes respect, inclusion, and collaboration.
• Growth & Development – We believe in lifelong learning and provide opportunities for continuous professional development.
• Flexibility – Work in a hybrid or remote environment that balances collaboration with autonomy.
• Comprehensive Benefits – Competitive compensation, equity participation, health and wellness benefits, and generous time‑off policies.

Base salary range (SF Bay Area): $170k-$220k.

DTEX is proud to provide equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, gender, religion, sex, national origin, age, disability, or genetics.

Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.