BestX AI Engineer, CO-OP

Jan 2026 - Jun 2026 (Full-Time role)
Who We Are Looking For:
This opportunity is ideal for individuals interested in contributing to our team as a BestX AI Engineer intern within State Street's Global Technology Services organization. Our technology function, Global Technology Services (GTS), is vital to State Street and is the key enabler for our business to deliver data and insights to our clients. We're driving the company's digital transformation and expanding business capabilities using industry best practices and advanced technologies. The ideal candidate leads with integrity, embraces creativity, and invests in personal growth. This role requires a collaborative mindset, a passion for innovation, and the ability to inspire others.

What You Will Do:
In this role, you will perform the following day-to-day activities:

• Collaborate cross-functionallywith analytics and technology teams to design and deliver data-driven solutions that enhance client decision-making across pre-trade and post-trade workflows.
• Leverage AI and machine learningto develop and refine decision augmentation tools that identify optimal counterparty and algorithm strategies based on historic trades and real-time market data.
• Drive product innovationby integrating advanced analytics into the BestX platform, contributing to its continued recognition as a leading transaction cost analysis (TCA) solution.
• Support client outcomesby translating complex data insights into actionable recommendations tailored to banks, hedge funds, and custody clients.
• Support AI-focused enhancementsto expand the platform's capabilities
• Work within a diverse tech environment using Julia/Python for analytics, PostgreSQL and KDB for data management, and Node.js for backend services.
• Design and develop secure applications that support identity and access management workflows, including authentication, authorization, and user provisioning, aligned with cybersecurity best practices and compliance standards and deploying to Cloud environments.
• Build and manage databases using a combination of database technologies
• Create responsive user interfaces with HTML, CSS, JavaScript, and frameworks like React
• Write unit and integration tests
• Participate in design and code reviews

In this role, you will have:

• Engagement in meaningful daily work: You'll take ownership of specific tasks and projects, gaining hands-on experience and building confidence through real contributions.
• A supportive learning environment: You'll exercise your judgment in a guided setting, with mentorship and supervision to help you grow.
• Focused skill development: This role is designed to help you deepen your expertise in a specific area.
• Clear structure and expectations: You'll work within well-defined parameters, giving you the clarity and focus to succeed.
• Independent contributions: You'll have the opportunity to make an impact through your individual contributions while collaborating with a supportive team.
• Focus on growth: While there are no people management responsibilities with this role, it is a great stepping stone for future leadership opportunities.
• A collaborative team culture: You'll build strong working relationships with your peers and supervisor, gaining valuable experience in a professional environment.

Education and Preferred Qualifications:
Candidates should be:

• Final-year undergraduate or graduate students pursuing degrees in Computer Science, Engineering, or related technical disciplines who are interested in converting to a full-time role post-graduation
• Enthusiastic about building a long-term career in a dynamic, technology-driven organization
• Effective communicators with the ability to collaborate in a team-oriented environment
• Open to feedback and committed to continuous learning and improvement
• Motivated by real-world problem solving and eager to contribute innovative ideas

Certification nice to haves (not required):
Certifications in cloud architecture, solutions architecture, AI, and Azure architecture

Core Competencies:
Candidates should exhibit working knowledge of the following key skills and proficiencies:

• Artificial Intelligence (AI)
• Python (Programming Language)
• Machine Learning
• Java
• Data Engineering
• Web Development

Nice to have skills (not required):

• Trading Strategies
• Financial Products

About State Street:
Across the globe, institutional investors rely on us to help them manage risk, respond to challenges, and drive performance and profitability. We keep our clients at the heart of everything we do, and smart, engaged employees are essential to our continued success.
Our promise to maintain an environment where every employee feels valued and able to meet their full potential infuses our company values. It's also part of our commitment to inclusion, development and engagement, and corporate social responsibility. You'll have tools to help balance your professional and personal life, paid volunteer days, and access to employee networks that help you stay connected to what matters to you. Join us.
State Street is an Affirmative Action/Equal Opportunity Employer/Vet/Disability.
Discover more information on U.S. jobs at StateStreet.com/careers

Salary Range:

The range quoted above applies to the role in the primary location specified. If the candidate would ultimately work outside of the primary location above, the applicable range could differ.

Job Application Disclosure:
It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.