Associate Middleware Engineer, Citi

Citi

Location:
Poland, Warsaw

Category:
IT - Software Development

Contract Type:
Employment contract

Salary:

Not provided

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Job Description:

As an Associate Middleware Engineer, you will be part of the Data in Motion team responsible for ensuring the resilience, performance, and reliability of Citi’s data movement platforms. You will work hands-on with middleware platforms, automation, and observability tools while collaborating with application and business teams in a hybrid work environment. You will contribute to a global financial institution's critical operations and receive mentorship, training, and a range of employee benefits.

Job Responsibility:

Monitor and support middleware platforms (Kafka, WebSphere MQ, AbInitio, IBM Cloud Pak for Data (CP4d) and Solace) to ensure message delivery, system stability, and performance
Respond to incidents and service requests in SaaS, performing triage, resolving issues, and escalating when needed
Use observability tools like Nastel and Splunk to proactively detect issues, perform root cause analysis, and generate insights into system behaviour
Partner with senior engineers to troubleshoot integration challenges across applications, infrastructure, and network layers
Contribute to automation initiatives by writing scripts (i.e. Python, Shell) that reduce manual effort and streamline routine tasks
Help develop SRE tools focused on automation and observability, improving system reliability and visibility across Citi’s global platforms
Document runbooks and operational knowledge, ensuring consistency and enabling knowledge sharing within the team
Collaborate with application and business teams to ensure integrations are reliable, secure, and aligned with production needs.

Requirements:

Foundational knowledge of middleware or messaging concepts (publish/subscribe, queues, point-to-point)
Comfort working in Linux/Unix environments and using command-line tools
A basic understanding of networking fundamentals (TCP/IP, SSL, routing, load balancing)
Strong analytical and problem-solving skills, with the ability to approach complex issues methodically
Team-oriented mindset with strong communication skills and willingness to collaborate across technical and business teams
Curiosity and eagerness to learn — especially in areas of automation, scripting (i.e. Python, Shell), and observability
The ability to work in a fast-paced, global operations environment with attention to detail and accountability.

What we offer:

Private Medical Care Program
Life Insurance Program
Pension Plan contribution (PPE Program)
Employee Assistance Program
Paid Parental Leave Program (maternity and paternity leave)
Sport Card
Holidays Allowance
Sport and team recreation activities
Special offers and discounts for employees
Access to an array of learning and development resources
A discretional annual performance related bonus
A chance to make a difference with various affinity networks and charity initiatives.

Additional Information:

Job Posted:
September 20, 2025

Employment Type:

Fulltime

Work Type:

Hybrid work

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Associate Middleware Engineer