Linux Application Support Jobs (NOW HIRING)

Posted Monday, August 31, 2026 at 4:00 AM

OSTTRA is seeking an experienced, analytical, and collaborative Application Support Engineer to join our team in New York City. In this role, you will provide critical 2nd-line technical support for our core Trade Processing applications, which are hosted across on-premises, client-premises, and cloud environments.

Reporting directly to the Regional Application Support Manager, you will work closely with a global team in a "Follow the Sun" model, ensuring system reliability, optimizing application health, and delivering exceptional service to our financial clients.

Technical Support & Resolution: Provide 2nd-line, client-facing technical support for issues escalated by 1st-line teams. Utilize strong investigative and problem-solving skills to diagnose and resolve complex issues efficiently.

Incident & System Monitoring: Proactively monitor system operations to detect anomalies. Initiate the incident management process by raising service outage tickets and driving swift resolutions.

Cross-Functional Collaboration: Work closely with the Development team for 3rd-line escalations, and coordinate with Product and Delivery teams to ensure support readiness for new software releases and enhancements.

Continuous Improvement: Lead initiatives focused on proactive application health monitoring, reporting automation, and operational efficiency.

Global Handover: Successfully manage the seamless handover of technical issues incoming from EMEA and outgoing to APAC.

Experience: 1-2 years of experience in an Application Support, Production Support, or a similar technical role (ideally within the Financial Services industry).

Education: Bachelor’s degree in Computer Science, Engineering, or a related technical field (Master’s degree is a plus).

SDLC & JIRA: Strong understanding of the Software Development Life Cycle (SDLC) with proven experience analyzing, prioritizing, and raising development bugs in JIRA.

Technical Essentials: Fundamental knowledge of SQL and RDBMS, Strong understanding of Windows and Linux operating systems, basic knowledge of networking topology and fundamentals.

Process Knowledge: Solid understanding of Application Support frameworks and ITIL best practices.

Flexibility: Ability to participate in occasional weekend work on a rotational basis.

Scripting: Experience with scripting languages (preferably Python).

Monitoring Tools: Familiarity with tools like Grafana or Centreon.

Domain Expertise: Awareness of Derivatives products and Trade Processing workflows.

Certifications: CCNA or ITIL certifications are a strong advantage.

The location: New York, United States

This role is limited to persons with indefinite right to work in the United States.

The anticipated base salary range for this position is $80,000 to $90,000. Final base salary for this role will be based on the individual’s geographic location, experience level, skill set, training, licenses and certifications.

At OSTTRA, our benefits philosophy offers a market-competitive package that reflects our position as an industry leader. We want to ensure you feel valued, secure, and empowered wherever you are in the world.

Our approach is built on three core pillars:

Global foundations: We provide a baseline of excellence across all our offices, focusing on comprehensive Health & Wellness, Financial Security, and Work-Life Balance. No matter your location, you are part of a culture that prioritizes your holistic well-being.

Locally tailored: We benchmark in each market to ensure our packages are genuinely competitive where you live and work.

Flexibility and growth: We empower you to work in a way that suits your life. This includes a hybrid working model, generous leave policies, and a commitment to your continuous professional development.

Every employee at OSTTRA is an owner, and a member of The Trust, our employee ownership programme. Our distinct culture encourages colleagues to think and act like owners and raise the bar constantly. This plan reflects our belief that when we work together to build a stronger, more valuable organisation, then all colleagues should benefit from the value we create.

We build and operate the infrastructure that the world’s post-trade financial system runs on. Launched in 2021, we have unified more than 20 years of heritage and expertise from four industry leaders into a single, integrated business.

Today,we operate a trusted network that connects thousands of market participants to streamline end-to-end workflows, from trade capture through portfolio optimisation.We translate industry change into workable process, engineering an open, intelligent ecosystem that removes friction and reduces risk for the global markets.
Our distinct ownership culture is underpinned by four behaviours: boldness, curiosity, accountability, and collaboration. In 2025 we were acquired by KKR, one of the world’s most successful private equity firms, and are on a journey of growth and impact.

Joining our team now is a unique opportunity - you will help to shape the next generation of post-trade, transform shared infrastructure into shared benefit, and accelerate your own career. Learn more at www.osttra.com .

We are committed to fostering a connected and engaged workplace where all colleagues have access to opportunities based on their skills, experience, and contributions. Our hiring practices emphasise fairness, transparency, and merit, ensuring that we attract and retain the best talent. By valuing different perspectives and promoting a culture of respect and collaboration, we drive and operate the infrastructure that the world’s post-trade financial system runs on