Principal Systems Engineer - fix protocol and trading app support experience needed
Location: Dublin
The Role
As a Principal Systems Engineer within the Systems Engineering team, you will have the opportunity to expand your expertise while collaborating with engineers across Fidelity in a dynamic and engaging environment. In this role, you will partner closely with engineering teams to support production deployments and with business teams to coordinate incident response activities. You will also work alongside enterprise infrastructure teams to maintain and support both on‑premises non‑production and production environments. As a senior team member, you will provide mentorship and help develop the technical capabilities of fellow engineers.
The Expertise and Skills You Bring
Front‑office trading application support experience is mandatory requirement
Practical working experience with the FIX protocol is a mandatory requirement
Practical working experience with AWS cloud platform is preferred
Practical experience in ITIL frameworks and processes is preferred
We are looking for 8+ years of relevant experience
Bachelor's degree in computer science or related field required
Experience deploying applications on-prem and on-cloud infrastructure
Plan and coordinate upgrades and patches for on-prem infrastructure
Seek out opportunities to develop and improve existing automation processes
Expertise in developing CI/CD pipelines using Jenkins, is a plus
Understanding of networking infrastructure and protocols, is a plus
Experience with logging and monitoring systems such as Datadog, Splunk
Experience with ServiceNow, is a plus
· Scripting experience in Python and shell, is plus
· Support on-call duties, including weekends
· Passionate and committed to learning new things
Solid analytical and communication skills and the ability to handle multiple tasks at any given time
Strong organization skills and attention to details
The value you deliver
As a Principal Systems Engineer in the Systems Engineering team, you’ll have the chance to elevate your expertise and collaborate with talented engineers across Fidelity in a fast‑paced, inspiring environment. You’ll partner closely with engineering teams to drive successful production deployments and work with business teams to lead and coordinate incident response efforts. You’ll also engage with enterprise infrastructure teams to support and enhance on‑premises non‑production and production environments. As a senior team member, you’ll play a key role in mentoring engineers and empowering them to grow their technical strengths.
The Team
Fidelity Digital Assets, a Fidelity Investments Company, is developing a full-service enterprise-grade platform for trading, custodian and other services for digital assets, such as Bitcoin, Ethereum, Solana and Litecoin
Fidelity Digital Assets embraces an entrepreneurial culture and startup mentality while serving as one of the most innovative business units within Fidelity Investments. Our global, diverse team of 450+ forward-thinking professionals lead with agility and creativity to build solutions that bridge the gap between traditional institutional investors and their exposure to digital assets. The firm’s tenure and experience across multiple business lines present our employees with unprecedented access to knowledge, technology, and resources that help our team reshape the future of finance.
Within Fidelity Digital Assets, the Systems engineering team is responsible for infrastructure solutions, automation, application deployments and production support
Category:Information Technology
Skills Required
- Front-office trading application support experience
- Practical working experience with the FIX protocol
- Bachelor's degree in computer science or related field
- 8+ years of relevant experience
- Practical working experience with AWS cloud platform
- Experience deploying applications on-prem and on-cloud infrastructure
- Practical experience in ITIL frameworks and processes
- Expertise in developing CI/CD pipelines using Jenkins
- Experience with logging and monitoring systems such as Datadog, Splunk
- Experience with ServiceNow
- Scripting experience in Python and shell
Fidelity Investments Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Fidelity Investments and has not been reviewed or approved by Fidelity Investments.
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Strong & Reliable Incentives — Bonuses, commissions, and profit-sharing are presented as generous and meaningful components of total compensation, with certain roles achieving high total earnings through multiple pay streams. Variable pay is consistently framed as a positive contributor beyond base salary.
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Retirement Support — A 401(k) match up to 7% alongside additional profit-sharing up to 10% materially enhances long-term compensation. These retirement features are highlighted as standout strengths of the overall package.
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Parental & Family Support — Generous paid parental leave (16 weeks maternity, 12 weeks parental), backup dependent care, and adoption assistance provide robust family support. Hybrid work and caregiving resources further ease family responsibilities.
Fidelity Investments Insights
What We Do
At Fidelity, our goal is to make financial expertise broadly accessible and effective in helping people live the lives they want. We do this by focusing on a diverse set of customers: - from 23 million people investing their life savings, to 20,000 businesses managing their employee benefits to 10,000 advisors needing innovative technology to invest their clients’ money. We offer investment management, retirement planning, portfolio guidance, brokerage, and many other financial products. Privately held for nearly 70 years, we’ve always believed by providing investors with access to the information and expertise, we can help them achieve better results. That’s been our approach- innovative yet personal, compassionate yet responsible, grounded by a tireless work ethic—it is the heart of the Fidelity way.
