Full Stack Developer – Treasury Technology

Millennium Management LLC; Greater London; On-site; GBP 85,000 - 110,000; Full time

Job summary

Millennium is seeking a Full Stack Developer for Treasury Technology. You will partner with stakeholders, develop Treasury applications and own delivery timelines in a global tech environment.

The role requires hands-on experience with .NET, C#, ASP.NET Web API, and frontend frameworks like Angular or Ember.js, plus cloud and database skills. You will contribute to end-to-end software lifecycle and apply strong engineering practices.

Qualifications

• Five+ years of hands-on programming experience.
• Strong OOP, design patterns and SOA knowledge.
• Proficiency with C#, ASP.NET Web API and .NET stack.
• Experience building web apps with Angular or Ember.js.
• Experience with cloud tech (AWS) and databases (SQL Server/Sybase/Oracle).
• Familiarity with Kubernetes, Kafka and Python is a plus.

Responsibilities

• Partner with stakeholders to understand needs and deliver technology solutions.
• Develop and enhance Treasury applications supporting key processes.
• Own delivery timelines and coordinate priorities across global teams.
• Take end-to-end ownership of software systems through lifecycle.
• Apply engineering practices to solve complex business problems.

Skills

C#

ASP.NET Web API

.NET development

Angular

Ember.js

AWS

Kubernetes

Kafka

Python

SQL Server

Sybase

Oracle

OOP

Design patterns

SOA

Concurrency

SOLID principles

Full software lifecycle

Problem-solving

Tools

SQL Server

Sybase

Oracle

Kubernetes

AWS

Job description

Full Stack Developer - Treasury Technology

About Millennium

Millennium is a global, diversified alternative investment firm, founded in 1989. Defined by evolution, innovation and focus, Millennium's mission is to deliver results for our investors.

Our people are empowered with both independence and support: the autonomy to pursue ideas with conviction and the backing of a global network committed to collaboration, disciplined risk management and continuous learning. With opportunities to deepen expertise and accelerate development, talent at Millennium is equipped to adapt, evolve and build lasting impact over time. Discover how transformative growth accelerates impact.

Meet the Team

Core to the health and growth of Millennium's business, the Information Technology organization develops flexible, scalable technology and advanced proprietary systems, including next-generation analytical and trading capabilities. Within this organization, the Treasury Technology team develops systems used by Treasury, Counterparty Risk, and Treasury Operations teams across the firm. Its platforms support Margin, Cash and Collateral Management, Treasury Operations, and Equity Finance for Treasury analysts, Front Office users, Portfolio Managers, and Senior Management.

What You'll Do

• Partner with business stakeholders globally to understand business needs, define requirements, and deliver effective technology solutions
• Develop and enhance Treasury applications that support critical Treasury, Counterparty Risk, and Treasury Operations processes
• Own delivery timelines for Treasury applications and projects, coordinating priorities and dependencies across a global technology organization
• Take end-to-end ownership of software systems throughout the application lifecycle, from design and development through deployment and ongoing support
• Apply sound engineering practices to solve complex business problems in a fast-paced environment

What You Bring

• At least five years of hands-on programming experience, with a strong understanding of object-oriented programming, design patterns, service-oriented architecture, concurrency, and SOLID principles
• Hands-on .NET development experience, including C# and ASP.NET Web API
• Experience building web applications using Angular, Ember.js, or similar frameworks
• Experience working with AWS or other cloud technologies
• Recent experience owning one or more large software systems and managing the full application lifecycle
• Strong problem-solving and analytical skills, with the ability to work independently and deliver in a dynamic environment
• Experience with enterprise databases such as Microsoft SQL Server, Sybase, or Oracle, as well as continuous delivery tools
• Familiarity with capital markets concepts and operational structures; experience with Kubernetes, Kafka, and Python is a plus