Principal .NET Developer, New York at ION Group

New York, New York, United States

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Not SpecifiedCompensation

Senior (5 to 8 years), Expert & Leadership (9+ years)Experience Level

Full TimeJob Type

UnknownVisa

Financial ServicesIndustries

Requirements

10+ years of commercial-grade web development experience
5+ years of solid hands-on experience in functional coding in .NET development
Collaborate with designers and other partners to provide input on design & wireframing
Experience with Agile development methodologies
Experience in modern JavaScript, ideally TypeScript, building web applications with React
Strong interpersonal and organizational skills
Bachelor’s or Master's degree in Computer Science, Engineering, Physics, Math, or related work experience
Knowledge of, and strong demonstrated interest in, global financial markets and financial products (strong plus)
Nice to Have
Experience working in a microservices setup
Familiarity working with Material UI, Terraform, Entity Framework, and SQL queries
Cloud experience (AWS preferred)
Exposure to and experience with CI/CD tools (TeamCity and Jenkins preferred)

Responsibilities

Drive transformative change for Financial Services clients
Operate within an Agile environment
Tackle complex and challenging projects
Leverage experience in front-end frameworks to design and construct next generation technology solutions

Skills

Key technologies and capabilities for this role

C#.NETJavaScriptTypeScriptReactAgileMicroservicesMaterial UITerraformEntity FrameworkSQLAWSCI/CDTeamCityJenkins

Questions & Answers

Common questions about this position

What is the salary range for the Principal .NET Developer position?

The base salary range for Senior to Leadership level is $180,000 - $220,000. Employees may be eligible for a discretionary bonus based on company and individual performance.

Is this Principal .NET Developer role remote or office-based?

This information is not specified in the job description.

What are the key required skills for this position?

Candidates need 10+ years of commercial-grade web development experience, 5+ years hands-on in .NET development with C#/.NET, experience with Agile methodologies, modern JavaScript (ideally TypeScript) and React, plus strong interpersonal and organizational skills.

What is the company culture like at Lab49?

Lab49 offers an Agile environment focused on transformative projects for Financial Services clients, with a supportive and inclusive culture valuing diverse backgrounds, creativity, and broad exposure to challenges that accelerate career growth.

What makes a strong candidate for this Principal .NET Developer role?

A strong candidate has 10+ years of web development experience including 5+ years in .NET, Agile expertise, React and TypeScript skills, plus interest in financial markets; nice-to-haves like microservices, AWS, and CI/CD tools strengthen applications.

ION Group

Automation technology for financial sector clients

About ION Group

ION Group specializes in automation technology tailored for the financial sector, primarily serving institutional clients like investment banks, asset managers, and brokers. The company provides advanced software solutions that enhance trading, processing, and risk management activities in global financial markets. ION's products include sophisticated software platforms and APIs that enable clients to connect seamlessly to various trading venues and exchanges, ensuring efficient and accurate transactions. Unlike many competitors, ION stands out by acquiring entrepreneurial firms, which allows it to remain agile and responsive to market changes. The company's goal is to enhance efficiency and reduce operational risks for its clients through automation and innovative technology.

London, United KingdomHeadquarters

1998Year Founded

$426.5MTotal Funding

GROWTH_EQUITY_VCCompany Stage

Enterprise Software, FintechIndustries

5,001-10,000Employees

Benefits

Health, dental, and vision insurance

AD&D and disability insurance

Flexible spending account

Health savings account

Life insurance

Mental health care

401K plan

Performance bonus

Supplemental workers' compensation

Family medical leave & parental leave

PTO, paid holidays, sick days, bereavement leave, and volunteer time off

Commuter checks

Company social events

Employee assistance program

Free lunch

mobile phone discount

Risks

Complexity in consolidating trading platforms may lead to operational inefficiencies.

US Treasury market's clearing mandate could impose significant compliance costs.

Potential global tariffs by Trump administration may disrupt ION's global operations.

Differentiation

ION Group specializes in automation technology for the financial sector.

The company offers sophisticated software platforms and APIs for seamless trading.

ION Group constantly innovates to enhance efficiency and reduce operational risks.

Upsides

Increased demand for automation drives innovation in AI-driven trading platforms.

The rise of DeFi creates opportunities for blockchain integration in financial services.

Growing importance of ESG criteria pushes adoption of efficient reporting tools.

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