Senior kdb+ Developer – BestX , Vice President

State Street

Quick summary

Work type: On-site
Location: Clifton, NJ · Princeton, NJ · Boston, MA
Salary: $125,000–$226,250 / yr
Posted: 2 days ago
Closes: Jul 31, 2026

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Salary context

Competitive pay

How this pay compares to similar roles

Similar $182k

This role $176k

$113k most similar roles pay here $238k

This role pays more than 50% of similar roles. Most pay $142,400–$222,000 — the shaded band above. At the midpoint, this role pays about $176k versus about $182k for comparable roles.

Based on 240 similar postings.

Employer

About State Street

State Street Corporation is one of the world''s largest custodian banks and asset managers, providing investment servicing, investment management, and investment research to institutional investors. Industry: Financial Services & Asset Custody

State Street currently has 63 open roles on FindRole.

Listed pay typically runs $120,000–$177,500 across 62 roles with salary data.

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At a glance

TL;DR · Senior kdb+ Developer – BestX , Vice President

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As a Senior kdb+ Developer at BestX, part of State Street’s Global Markets and GlobalLink ecosystem, you will join the engineering team to design and build high-performance data platforms using kdb+, supporting multi-asset analytics capabilities. Your responsibilities include architecting and maintaining kdb+ tick systems, optimizing q queries for real-time and historical workloads, and applying Agile development practices in cloud-based environments. You will also champion Test-Driven Development and CI/CD pipelines while ensuring low latency and high throughput for large-scale datasets. Essential skills include 5+ years of hands-on kdb+/q experience, proficiency with Python and modern data science tools like Jupyter and pandas, and a strong background in quantitative analysis. The role involves working on complex, production-scale environments and requires expertise in AWS and parallel computing frameworks such as Slurm. BestX processes over one billion market data updates daily, providing independent TCA insights across various financial assets.

Skills

kdb+/q Python AWS Jupyter pandas NumPy scikit-learn Slurm CI/CD Node.js npm Rush Yarn Webpack Babel Cypress

What you'll do

Design and develop key components of BestX’s multi-asset analytics platform.
Architect and maintain kdb+ tick systems with optimized data organization and schema design.
Develop systems to process large-scale, high-frequency datasets efficiently.
Analyze and optimize q queries for both real-time and historical workloads.
Apply Agile development practices in cloud-based and database-driven systems.
Champion Test-Driven Development and CI/CD pipeline support practices.

What we're looking for

5+ years of hands-on kdb+/q development experience.
Expertise in Python and modern data science tools like Jupyter, pandas, NumPy, scikit-learn.
Strong background in quantitative analysis including mathematical modelling and statistics.
Bachelor’s or Master’s degree in Computer Science, Mathematics, Statistics, or related field.
Proficiency with AWS or other cloud-based infrastructure.
Experience with parallel computing frameworks such as Slurm.

Senior Software Engineer – Backend Platforms, Vice President (Wealth Custody & Clearing)

State Street

Boston, MA 15 days ago $120,000–$202,500

Java Spring Boot AWS Kubernetes PostgreSQL Kafka CI/CD Docker Terraform Python Go Prometheus Grafana SEC FINRA GDPR

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