Karthi Rajendran

Engineering and Transformational - Senior Lead Analyst at Citi

Chennai, Tamil Nadu, India

About

I am an Engineering Leader with 19+ years of experience building and scaling high-availability, transaction-intensive platforms in financial services and trading domains. My career spans hands-on engineering, platform modernization, and senior leadership roles, where I have led multi-team, globally distributed organizations delivering mission-critical systems. I specialize in modernizing complex, legacy platforms into cloud-native, microservices-based architectures, improving scalability, resilience, and time-to-market. I have deep expertise in distributed systems, low-latency architectures, and end-to-end transaction processing, combined with a strong focus on engineering excellence, DevSecOps, and delivery metrics (DORA). As a leader, I focus on building strong engineering cultures—teams that value ownership, quality, and continuous improvement. I work closely with Product, Business, Risk, and Operations stakeholders to translate strategic goals into clear technical roadmaps and predictable execution, balancing innovation with reliability and compliance. I am known for: Scaling and mentoring high-performing engineering teams Driving platform modernization and cloud adoption Improving delivery speed, reliability, and operational maturity Communicating complex technical strategy to executive and non-technical audiences I’m passionate about technology leadership that delivers real business outcomes—systems that are not just elegant, but resilient, secure, and built to scale.

Experience

  • Citi (15 yrs)
    • Engineering and Tranfomational - Senior Tech Lead Analyst - SVP
      Nov 2023 - Present · 2 yrs 8 mos

      • Lead multiple engineering teams delivering business-critical FX platforms, ensuring scalability, resilience, and regulatory readiness. • Defined and enforced engineering standards and best practices, significantly improving code quality, maintainability, and system reliability. • Drove organization-wide adoption of DORA metrics, improving delivery predictability, deployment frequency, and change success rates. • Led modernization initiatives, transitioning legacy systems to microservices and event-driven architectures, enabling independent releases and horizontal scalability. • Championed CI/CD transformation using Tekton and Harness, reducing deployment lead time and improving release stability. • Established automated testing, monitoring, and observability practices, strengthening production stability and incident response. • Partner closely with Product, Design, Operations, and Senior Leadership to align engineering execution with strategic business objectives. • Contribute to long-term technical vision, architecture standards, and platform roadmaps at the enterprise level. • Collaborated with senior leadership to define and execute long-term engineering roadmaps, establishing technical direction and architectural standards.

    • Engineering - Tech Lead Analyst - VP
      Jan 2019 - Nov 2023 · 4 yrs 11 mos

      • Owned end-to-end FX Trade Processing platforms, covering complete front-to-back workflows including pricing, booking, settlement, and reporting. • Led global delivery across development, testing, and release cycles, ensuring high-quality and timely delivery of mission-critical systems. • Built and scaled RESTful APIs and microservices, improving throughput, fault tolerance, and overall system performance. • Established CI pipelines and automated testing frameworks, accelerating release cycles and reducing regression defects. • Fostered a strong engineering culture with high standards for quality, ownership, and accountability within Agile delivery models. • Collaborated with Product and Business stakeholders to define and execute technology roadmaps aligned to business priorities.

    • Engineering - Senior Java Programmer Analyst - AVP
      Feb 2015 - Dec 2018 · 3 yrs 11 mos

      • Implemented Fixed Income pricing solutions for diverse bond instruments across 40+ countries, meeting stringent accuracy and latency requirements. • Designed and executed engineering plans, processes, and delivery frameworks to support scalable operations. • Led and mentored engineering teams, delegating work, tracking execution, and resolving complex technical escalations. • Promoted collaboration, continuous learning, and technical excellence within the team.

  • Senior Java Developer at CoreLogic
    Dec 2010 - Jul 2011 · 8 mos

  • Senior Computer Application Developer at Citi
    Jul 2008 - Dec 2010 · 2 yrs 6 mos

  • Software Engineer at Mphasis
    Jun 2006 - Jun 2008 · 2 yrs 1 mo

  • Software Engineer at Macrosoft
    Sep 2005 - Jun 2006 · 10 mos

    RAPTOR (Rapid Application Programming Tool for OLAP Reporting) XML ANALYZER FOR OPD COMTRACS (Content Management and Tracking system)