---
title: 'Senior Systems Reliability Engineer, Ireland at IEX Group'
canonical: 'https://feeny.ai/job/senior-systems-reliability-engineer-ireland-iex-group-dublin-zbzysq03794x'
type: 'job'
last_seen: '2026-11-04'
---

# Senior Systems Reliability Engineer, Ireland at IEX Group

- **Company:** IEX Group
- **Location:** Dublin, Ireland
- **Posted:** 2026-10-15
- **Last confirmed live:** 2026-11-04
- **Apply:** https://iex.io/careers/apply?gh_jid=8239802

## Job description

About IEX:

IEX is an exchange operator and technology company dedicated to innovating for performance in capital markets. Founded in 2012, IEX launched a new kind of securities exchange in 2016 that combines a transparent business model and unique architecture designed to protect investors. Today, IEX applies its proprietary technology and experience to drive performance across asset classes, serve investors, and advocate for transparent and competitive markets.

## About This Role

IEX is looking for our next Senior Systems Reliability Engineer – The right person for the job will be an insatiably curious tinkerer with technical chops, who has done this type of role before. Bonus points if you take an interest in the stock market, though finance experience is not necessary - only a willingness to learn all about the inner workings of the market is required.

In this role, you will be constantly optimizing and automating our processes and systems to improve reliability, scalability, and maintainability. Plus, you will take on real-time responsibilities, such as monitoring, incident management, and recovery.

Coding and scripting are part of our daily life (we like python, bash, ansible and rust). You will be exposed to how our technology interacts with the business to gain a deep understanding of application logic and business data workflows. Experience with any layer in our stack (Linux, Java, C++) is highly beneficial, particularly around the areas of performance and capacity. Experience in an agile environment is a plus, and a willingness to tackle the challenge of innovating within a regulated environment is key.

This position supports IEX and will be performed in Ireland. The successful candidate will be employed in Ireland by Rippling, acting as IEX’s employer of record and administering local payroll, benefits, tax, and employment compliance.

What you will do:

- Responsible for the technical operations of our trading platform
- Participate in the engineering process as we design, build, and manage our systems.
- Build tools to monitor and automate processes.
- Be a core contributor in our change management and learning review processes
- Troubleshoot issues across the whole stack - hardware, software, application, and network.
- Document current and future configuration processes and policies.
- Translate customer needs and projected product utilization to operational reliability targets.
- Guides other functions (e.g., development, market operations, business development, subscribers, etc.) on reliability techniques, application, and system functionality.
- Educate and mentor team/company on operational best practices

Your background:

- Automation experience with Ansible or a similar configuration management tools
- Hands-on experience with Linux, python, bash, and git
- Experience supporting large, complex, and distributed systems
- Host side networking
- Packet level understanding of network traffic, working experience troubleshooting with packet captures, etc.
- TCP/IP Stack, routes
- Multicast
- General familiarity with Data Center workflows and working with DC personnel to implement changes
- Hardware familiarity
- Arista and Cisco switches and their CLI’s
- Corvil
- Solarflare, Mellanox

IEX is committed to providing an inclusive and respectful workplace and to providing equal employment opportunities. We welcome applications from all suitably qualified candidates and do not discriminate on the basis of any characteristic protected under Irish equality legislation, including gender, civil status, family status, sexual orientation, religion, age, disability, race, or membership of the Traveller community.

IEX is committed to providing an inclusive and accessible recruitment process. If you require a reasonable accommodation at any stage of the application or interview process, please let us know and we will be happy to discuss how we can support you.

[IEX GDPR Applicant Privacy Notice](https://cdn.prod.website-files.com/696f8ac812dcabe749e3aa8c/6ac024f4c19e717a43da4f2c_IEX%20Applicant%20Privacy%20Disclosure_Ireland%209.21.26.pdf)

## About IEX Group

## Company Overview
- **One-liner**: IEX Group is a high-performance U.S. stock exchange operator and technology company dedicated to innovating for market integrity and investor protection.
- **Entity Type**: Private (operates a registered national securities exchange)
- **Headquarters**: New York, NY, USA (3 World Trade Center, 58th floor)
- **Founded**: 2012 (based on public history; IEX exchange launched in 2016)
- **Founders**: Brad Katsuyama (CEO), Ronan Ryan (COO), Rob Park (CTO)

## Core Business
- **Primary industry**: Financial services – stock exchange and trading technology; expanding into options exchange.
- **Target customers**: Institutional brokers, asset managers, retail brokers, and liquidity providers (B2B capital markets).
- **Mission/purpose**: "Think Big, Do Good" – level the playing field, protect investors, and improve market integrity through transparent, innovative trading solutions.

## Products & Services
- **IEX Exchange**: A U.S. stock exchange offering equitable, high-performance trading with unique features like the D-Limit (discretionary limit) order type. Top 3 in quote presence among 16 U.S. exchanges (Russell 3000). Notional value traded using D-Limit exceeded $8.6 trillion since inception.
- **IEX Options (coming soon)**: A new options exchange designed to arm liquidity providers with risk management technology and reduce adverse selection.

## Market Standing
- **Valuation/Market Cap**: Not publicly available (private company)
- **Key Metric**: $8.6 trillion notional value traded on IEX Exchange using D-Limit since inception; daily traded volume data disclosed quarterly.
- **Notable Investors/Partners**: IEX has strong relationships with brokers and investors across the financial industry. Board and advisory committees include diverse industry stakeholders.
- **Growth Signals**: Expanding into options exchange; maintaining top-3 quote presence; continuous innovation in order types and market structure.

## Competitive Advantages
- **Transparent, broker-neutral exchange model** – no conflict of interest from proprietary trading or data monetization.
- **Proprietary technology** – D-Limit and other innovative order types reduce information leakage and improve execution quality.
- **Proven track record** – $8.6 trillion notional traded on D-Limit demonstrates adoption by sophisticated market participants.
- **Culture of high performance** – attracts top engineering, product, and finance talent.

## Strategic Focus
- **Options launch** – entering the options market with a differentiated, technology-first offering.
- **Continued innovation** in market structure and order types to benefit all participants.
- **Talent growth** – building teams across engineering, data infrastructure, security, finance, and product.

## Why Work Here
- **Culture**: "Think Big, Do Good" – emphasis on innovation, growth mindset, resilience, and teamwork. Celebrated for diversity, equity, inclusion, and belonging.
- **Hybrid work**: Flexible environment – teams decide how and where to work (home, road, office).
- **Office**: NYC headquarters with stunning views, in-office gym (weights, Peloton, showers), and lunch-and-learns.
- **Benefits**:
  - 100% employer-paid medical, dental, vision premiums for employees, spouses, and dependents.
  - 16 weeks paid parental leave for primary and secondary caregivers.
  - Unlimited PTO with a flexible vacation policy.
  - $5,000 annual learning stipend + $1,000 non-profit donation match.
  - Competitive compensation packs (equity, bonus, 401k with company match).
  - One Medical membership covered.
- **Internal mobility**: Encouraged to learn across departments; internship and early career programs available.
- **Open roles** (as of search): Software Engineer for Test, Market Operations Specialist (Options), Commercial Counsel, Senior Data Infrastructure Engineer, Senior Software Engineer, FP&A Associate, Senior Network Engineer, Senior Systems Reliability Engineer, Risk Management Associate.

## Sources
1. [iex.io – Home](https://www.iex.io/)
2. [iex.io – About Us](https://www.iex.io/about)
3. [iex.io – Careers](https://www.iex.io/careers)
4. [iex.io – Benefits Guide](https://www.iex.io/article/iex-benefits-package)
5. [LinkedIn – IEX Group Open Positions](https://www.linkedin.com/company/iex-group-inc-)

## Other roles at IEX Group

- [Software Engineer for Test](https://feeny.ai/job/software-engineer-for-test-iex-group-new-york-y442aq0zfphv) — New York, NY
- [Compliance Officer](https://feeny.ai/job/compliance-officer-iex-group-new-york-0sj2zmdng5m1) — New York, NY
- [Network Engineer - Ireland](https://feeny.ai/job/network-engineer-ireland-iex-group-dublin-yt9jz3zb07r9) — Dublin, Ireland
- [Software Engineer, Java](https://feeny.ai/job/software-engineer-java-iex-group-new-york-hjb5xas5qffd) — New York, NY
- [Trading Analytics Specialist, Options](https://feeny.ai/job/trading-analytics-specialist-options-iex-group-new-york-fbna319by2x3) — New York, NY
- [Senior Systems Reliability Engineer](https://feeny.ai/job/senior-systems-reliability-engineer-iex-group-must-reside-in-california-or-8fe4407m425d) — Must Reside in California OR, OR
- [Senior Network Engineer](https://feeny.ai/job/senior-network-engineer-iex-group-chicago-c3wbdr40tgth) — Chicago, IL