Senior .net Developer

The TP ICAP Group is a world leading provider of market infrastructure.

Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and distribution of data, through responsible and innovative solutions.

Through our people and technology, we connect clients to superior liquidity and data solutions.

The Group is home to a stable of premium brands. Collectively, TP ICAP is the largest interdealer broker in the world by revenue, the number one Energy & Commodities broker in the world, the world’s leading provider of OTC data, and an award winning all-to-all trading platform.

Founded in London in 1866, the Group operates from more than 60 offices in 27 countries.  We are 5,200 people strong.  We work as one to achieve our vision of being the world’s most trusted, innovative, liquidity and data solutions specialist.

Liquidnet

Liquidnet is a next-generation agency execution specialist. Powered by technology that helps drive institutional alpha, our trading and liquidity network intelligently and securely connects the world’s investors with the world’s investments.

Established in 1999 on the belief that there was a better way to trade, Liquidnet's journey began with a vision to create a platform that goes beyond traditional transactional models.

We wanted to build a community where traders could connect, collaborate, and execute trades with confidence. Over the years, we've grown from a vision into a thriving ecosystem that empowers the buy side in ways never before imagined.

We are committed to making trading more efficient, intelligent, and accessible. Our purpose guides every decision we make, from the tools we develop to the relationships we nurture with our Members.

Role Overview

Liquidnet is seeking an exceptional and experienced Developer to join the Global Trading Technology team based in New York. This experienced individual has a proven track record of developing quality client-facing solutions for a world-class company. 

We are looking for an outstanding developer to be a part of a small, agile, highly professional global team delivering client-facing trading applications. This person will be responsible for developing and supporting the products that drive our core business.

Role Responsibilities

• Development of innovative features within Liquidnet’s & TPICAP Trading Platform. Writing robust, performant and maintainable code.

• Active participation in design and estimation activities in collaboration with the Product owner.

• Active participation in Sprint and release planning activities.

• Provide L3 support for the production system and actively participate in the investigation of issues.

• Carry out code reviews

• Provide the primary point of contact for queries in both QA and production.

• Keep current with industry trends and incorporate emerging best practices into everyday work.

• Contribute to the development communities of interest (COIN groups)

• Mentoring and training other team members

• Contribute to the definition of TPICAP development standards and best practices

• Build relationships with internal and external stakeholders to ensure continuity of service and implementation of global development & deployment standards

• Be responsible for ensuring that you are fully aware of and adhere to internal policies that relate to you, your role or any other activities for which you have any level of responsibility.

• Ensure compliance and operational risk requirements are met (e.g. cultural behaviours, security policies and regulatory requirements)

• Complete any mandatory training by the required deadlines.

• Act with integrity and due skill, care and diligence in carrying out your duties

Experience / Competences

Essential

• Proficiency in C# and .NET, with deep expertise in core language features, asynchronous programming (async/await), memory management, and performance optimization.

• Experience with multiple programming languages (e.g., F#, Python, C++, or Java) and a strong ability to adapt to new languages and paradigms as needed.

• Extensive experience developing Order Management Systems (OMS) and Execution Management Systems (EMS) or similar high-throughput, real-time trading platforms.

• Low-latency / latency-sensitive C# development, including tuning garbage collection, optimizing network I/O (e.g., using Span, Memory, Pipelines), and minimizing jitter in performance-critical systems.

• Expertise in distributed systems development, including messaging systems (e.g., Kafka, RabbitMQ, Azure Service Bus), microservices architecture, and fault-tolerant design.

• Strong object-oriented design (OOD) skills, with a solid grasp of design patterns, SOLID principles, and clean code practices.

• Proven track record in designing, developing, and deploying trading applications in performance-sensitive environments, with a focus on reliability and scalability.

• Proficiency with Git for version control, including branching strategies, code reviews, and CI/CD integration.

• Good knowledge of the modern .NET ecosystem, including build tools (MSBuild, NuGet), dependency injection, and testing frameworks (xUnit, NUnit, MSTest).

• Demonstrated ability and enthusiasm to learn new languages and technologies based on project requirements or evolving tech stacks.

Desired

• Experience in financial services application development, particularly in Cash Equities or Fixed Income trading environments.

• Familiarity with Agile methodologies, such as Scrum or Kanban, and experience working in cross-functional Agile teams.

• Knowledge of front-end and cloud technologies, including:

  • JavaScript and modern frameworks like React

  • Cloud platforms such as Azure or AWS (e.g., EC2, Lambda, S3, CloudWatch)

  • Relational databases such as SQL Server and PostgreSQL

• Exposure to DevOps practices and tools, such as Docker, Kubernetes, and Jenkins, is a plus.

Job Band & Level

• Manager / 6

Annual Salary

• $145,000 - $155,000

#LNET #LI-Hybrid #LI-MID

Not The Perfect Fit?

Concerned that you may not meet the criteria precisely? At TP ICAP, we wholeheartedly believe in fostering inclusivity and cultivating a work environment where everyone can flourish, regardless of your personal or professional background. If you are enthusiastic about this role but find that your experience doesn't align perfectly with every aspect of the job description, we strongly encourage you to apply. You may be the ideal candidate for this position or another opportunity within our organisation. Our dedicated Talent Acquisition team is here to assist you in recognising how your unique skills and abilities can be a valuable contribution. Don't hesitate to take the leap and explore the possibilities. Your potential is what truly matters to us.

Company Statement

We know that the best innovation happens when diverse people with different perspectives and skills work together in an inclusive atmosphere. That's why we're building a culture where everyone plays a part in making people feel welcome, ready and willing to contribute. TP ICAP Accord - our Employee Network - is a central to this. As well as representing specific groups, TP ICAP Accord helps increase awareness, collaboration, shares best practice, and holds our firm to account for driving continuous cultural improvement. 

Location

USA - 200 Vesey Street - New York, NY