Senior Python Engineer – Transaction monitoring- VP (Hybrid)

24755038 Senior Python Engineer – Transaction monitoring- VP (Hybrid) Make a global impact by building the future of transaction monitoring at Citi. We are seeking a skilled and passionate Senior Python Engineer to join our growing Transaction Monitoring technology team. In this critical role, you will leverage your expertise in complex, data-centric applications to develop strategic products that mitigate business risk and ensure compliance with financial regulations. This is your chance to develop complex business controls and data pipelines, integrating them seamlessly with internal & external systems. You'll collaborate closely with data scientists and business stakeholders, acting as a bridge between technical execution and business needs. If you're ready to shape the future of transaction monitoring at Citi and see your work have a tangible impact, this is the opportunity for you. Key Responsibilities Design, develop, and implement data-centric applications and distributed data pipelines in Python to detect potential market abuse. Drive the architectural evolution of our 1LOD Transaction Monitoring systems, focusing on hosting, scheduling, and inter-dependency of data pipelines and services. Mentor junior team members, fostering their technical growth. Build ETL layers to integrate emerging data sources. Champion high development standards, emphasizing code quality, reviews, unit testing, and CI/CD. Collaborate with data scientists and business stakeholders to translate requirements into robust algorithms, data integrations, and quality checks. Prioritise work effectively based on client and stakeholder needs. Skills & Qualifications Proven experience designing and implementing Python-based data pipelines and complex applications. Expertise with Big Data technologies (Dask, Spark), Docker, Kubernetes, Helm, and Terraform. Strong SQL skills, experience with data warehousing and relational/NoSQL databases (Impala, Hive, Delta, Databricks, Postgres, Mongo). Experience creating pipelines supporting ML/statistical algorithms and working with data scientists. Familiarity with message queues (Kafka, RabbitMQ) and DevOps practices, including CI/CD, monitoring, and log aggregation tools. Excellent communication and collaboration skills, with the ability to translate technical concepts to diverse audiences. A passion for delivering impactful solutions and driving innovation. Education Degree educated (Master’s preferred) or experience operating in a similar role This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. If you're ready to take on a challenge that matters, where your skills will have a direct impact on a global scale, then apply now What we’ll provide you By joining Citi London, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as: 27 days annual leave (plus bank holidays) A discretional annual performance related bonus Private Medical Care & Life Insurance Employee Assistance Program Pension Plan Paid Parental Leave Special discounts for employees, family, and friends Access to an array of learning and development resources Visit our Global Benefits page to learn more. Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive. LI-AP2 Job Family Group: Technology Job Family: Applications Development Time Type: Full time Citi is an equal opportunity and affirmative action employer. Qualified applicants will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. Citigroup Inc. and its subsidiaries ("Citi”) invite all qualified interested applicants to apply for career opportunities. 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 the " EEO is the Law " poster. View the EEO is the Law Supplement . View the EEO Policy Statement . View the Pay Transparency Posting