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Senior Reliability Engineer with Java/Python

Citigroup, Inc.
Warsaw Poland Posted Oct 22, 2026
Full-timeHybrid

About this role

Are you looking for a career move that will put you at the heart of a global financial institution? Bring your passion for software development, process automation, and AI integration to Citi's Developer Services Team.

By Joining Citi, you will become part of a global organization whose mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress.

Team/Role Overview

Citi Technology partners to ensure that Citi’s platforms can “Be the Best” for clients globally, with a diverse and ethical workforce that applies innovation and automation to deliver a world class client experience and strengthen our reputation. By utilizing a broad range of technologies, we are at the forefront of innovation. We seek to drive our systems and processes towards scalable, low-latency, high frequency enterprise systems to support Citi’s strategic priorities.

The position is responsible for bringing DevOps/SRE (Site Reliability Engineering) mindset, practices and working together with the team of Developer Services engineers on automation of manual/repetitive processes, integration with AI tools, driving resiliency, supporting service migrations to SaaS and issue investigations with best practices proposals being deployed.

What you’ll do

  • You will work in an agile software development environment, developing quality and scalable software solutions using leading-edge technologies. You will work closely with developers, engineers and non-technology employees to help them be more productive with the use of the CI/CD tools,

  • You may have exposure within the following tools/technologies/domains: CI/CD pipeline, Python, Bash, GitHub, Bitbucket, Docker, Copilot, Devin AI, Model Context Protocol, Jira, Confluence, OS (Win/Linux),

  • Global Exposure: Work in globally scoped projects with cross-functional teams and gain insights into how technology drives the financial sector worldwide,

  • You will collaborate with Citi Developer Services engineers to automate manual and repetitive processes, integrate services with AI (by building and maintaining MCP - Model Context Protocol servers), enhance system resiliency, and coordinate service issue investigations by deploying best practices,

  • Automate manual activities, repetitive processes, reporting, controls, etc., configure and tune them,

  • Build and maintain the foundational MCP servers that allows AI models to securely interact with enterprise systems,

  • Continuously improve systems resiliency, reliability, and business cost - through a design and development of software solutions and streamlined processes,

  • Mitigate risk by analyzing the root cause of production issues, impacts to business, and required corrective actions.

  • What we’ll need from you

  • Software senior developer, scripting in Python/Shell/Bash/Java/Go (a combination of it to be able to build MCP servers),

  • Experience in CI/CD, in large enterprise tech-stack infra-architecture,

  • Hands-on experience deploying and scaling the Model Context Protocol (MCP) in complex, enterprise environments,

  • Understanding of SRE/DevOps/CI/CD,

  • Strong analytical, algorithmic, and problem-solving skills,

  • Excellent teamwork, proactive attitude, strong communication skills, both written and oral,

  • Knowledge of Grafana/Splunk will be additional value.

  • What we can offer you

By joining Citi Solutions Center Poland, you will not only be part of a business casual workplace with a hybrid working model (currently up to 2 days working at home per week), but also (potentially, subject to final offer) receive a competitive base salary and enjoy a whole host of additional benefits which can include:

  • Employer paid Defined Contribution Pension Plan contribution of 6% of employee’s pensionable earnings (PPE Program)
  • Employer paid Private Medical Care Package for employees and Private Medical Care Packages for certain family members available at preferential rates
  • Employer paid Life Insurance Program for employees and Life Insurance for certain family members available at preferential rates
  • Employee Assistance Program financed by Employer
  • Paid Parental Leave Program (maternity and paternity leave; statutory and 2 weeks additional paid paternity leave)
  • Sport Card for employees subsidised via Social

Benefits

  • Fund and Sport Cards for certain family members available at preferential rates
  • Additional benefits from Company’s Social Benefit Fund, in particular: Holidays Allowance, support for sport and cultural activities, team building events.
  • Additional day off for volunteering
  • Cafeteria/ flex benefit – a company benefits system which enables employees to select and purchase benefits offered by a provider and available for employees on the platform.
  • Opportunity to receive an annual discretionary incentive award
  • Special offers and discounts for employees
  • Copy and paste the URL below into a new tab on your web browser to view the

Remuneration

Regulations extract:

Job Family Group:

Technology------------------------------------------------------

Job Family:

Systems & Engineering------------------------------------------------------

Time Type:

Full time------------------------------------------------------

Primary

Location

Full Time

Salary

Range:

241 750,00 zł - 411 650,00 zł------------------------------------------------------

Most Relevant Skills

Please see the requirements listed above.------------------------------------------------------

Other Relevant Skills

For complementary skills, please see above and/or contact the recruiter.------------------------------------------------------

Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.

View Citi’s EEO Policy Statement and the Know Your Rights poster.

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