Karthik Sekar

AI Researcher

Berlin, Berlin, Germany14 yrs 2 mos experience
Most Likely To SwitchHighly Stable

Key Highlights

  • Led the design of a modern cloud-native data ecosystem.
  • Developed a custom visualization platform reducing reporting costs.
  • Pioneered data engineering function at IMMO from the ground up.
Stackforce AI infers this person is a SaaS Data Engineering Leader with expertise in building scalable data ecosystems.

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Skills

Core Skills

Data EngineeringData Architecture

Other Skills

AWSAWS DMSAWS ECSAWS LambdaAWS MSKAgile Application DevelopmentAirflowAmazon DynamodbAmazon EKSAmazon KinesisAmazon RedshiftAmazon S3Amazon Web Services (AWS)AnalyticsApache Airflow

About

As a data engineering leader with over three years at IMMO, the focus has been on designing and scaling a modern, cloud-native data ecosystem to empower data-driven decision-making. Spearheaded the architecture and implementation of an end-to-end data pipeline leveraging AWS MWAA, Snowflake, and dbt, enabling real-time business insights. Delivered a custom in-house visualization platform using Apache Superset, enhancing operational efficiency and reducing reliance on third-party tools. Competencies include scalable platform design, data governance, and implementation of best practices in data engineering. Prioritized collaboration with stakeholders to align technical execution with business strategy. Passionate about building resilient, future-proof data systems that foster organizational trust and decentralize data ownership.

Experience

14 yrs 2 mos
Total Experience
1 yr 9 mos
Average Tenure
4 yrs 3 mos
Current Experience

Immo

Tech Lead Data Engineering

Feb 2022Present · 4 yrs 3 mos · Germany

  • Pioneered IMMO Capital’s data engineering function as the first senior data engineer, partnering with a single colleague to build the entire data ecosystem from the ground up.
  • Designed and implemented an end-to-end data system within just two months, using Fivetran for select data integrations, custom Airflow (MWAA) DAGs, and a dbt repository to transform and model data for real-time business insights.
  • Selected AWS Managed Workflows for Apache Airflow (MWAA), Snowflake, and Looker to establish a robust, scalable, and high-performing modern data stack.
  • Architected and deployed an in-house visualization platform using Apache Superset on AWS ECS with auto-scaling and strict security protocols, reducing reliance on Looker and significantly cutting reporting costs.
  • Partnered closely with the principal architect to build out a data mesh architecture, leveraging event-driven systems with AWS MSK, MSK Connect, and Spark Streaming for real-time data ingestion and processing.
  • Engineered a comprehensive data platform featuring custom SDKs for message serialization and deserialization, enabling reliable and standardized data exchange across teams.
  • Developed APIs to seamlessly deploy development team data schemas to AWS Glue Schema Registry, ensuring consistent schema management and improved data quality.
  • Deployed Kafka UI and integrated with AWS Glue Schema Registry, simplifying schema discovery, updates, and version tracking.
  • Streamlined MWAA DAG deployments by creating a centralized Airflow library, allowing teams to define their data workflows via dagfactory YAML and automate the publishing process.
  • Coordinated multiple AWS services—MSK, MWAA, ECS (Kafka UI, Kafka Connect, MWAA Tasks, Superset), and Lambda-based APIs—under a unified data platform architecture for end-to-end data processing.
  • Managed GitHub-centric workflows and data contracts for Kafka topic creation and access control, ensuring robust data governance and compliance.
LeadershipQuery OptimizationData MigrationJSONData CollectionTeamwork+31

Penta

Senior Data Engineer

Oct 2021Mar 2022 · 5 mos · Berlin, Germany · Remote

  • Architected and implemented an end to end data pipeline for extracting data from RDBMS to Data Analytics using AWS DMS, DBT Pipelines and Snowflake.
  • Implemented Data Engineering best practices and lead from the front as the Team was very new.
Solution ArchitectureQuery OptimizationData EngineeringAmazon RedshiftData MigrationJSON+37

Idealo internet gmbh

Senior Data Engineer

Mar 2020Oct 2021 · 1 yr 7 mos · Berlin, Germany

  • Enhanced efficiency of many Data pipelines using Apache Spark Tuning techniques.
  • Implemented best practices for using Apache Spark in Large scale.
  • Best collaborated with data analysts to understand their concerns in existing data models and re-modelled the data.
  • Migrated all the data pipelines from SPLUNK to Open source Apache Spark and saved costs.
Query OptimizationData EngineeringData MigrationJSONSystems DesignAmazon Kinesis+32

Gogo

Data Engineer

Jun 2019Feb 2020 · 8 mos · Chennai, Tamil Nadu, India

  • Provided Support to ensure all the data pipelines are up & running.
  • Provided support to fix data pipelines if they fail.
  • Ensured the data is available for business as per the SLA.
  • Ensured the Spark Streaming job is streaming data continuously and debugged whenever the job is stuck.
Query OptimizationData EngineeringAmazon RedshiftJSONAmazon KinesisBatch Processing+22

Nielsen

Big Data Engineer

Oct 2016May 2019 · 2 yrs 7 mos · Chennai, Tamil Nadu, India · On-site

  • Migrated all the Spark Java based applications to Scala to enhance performance.
  • Selected as junior data architect to present the architecture in Mexico Nielsen Architects conference.
  • Implemented data pipelines using Apache Hadoop, Apache Spark, Hive and redis cache for lightening fast analytics for business.
  • Awarded `Gold Award` for exemplifying the core values of Nielsen.
Query OptimizationData EngineeringData MigrationJSONBatch ProcessingTeamwork+19

Cognizant

Senior Software Development Engineer

Jun 2016Sep 2016 · 3 mos · Chennai, Tamil Nadu, India

TeamworkRequirements AnalysisData QualityData WarehousingPython (Programming Language)Problem Solving

Accenture

Software Engineering Analyst

Jan 2015Jun 2016 · 1 yr 5 mos

TeamworkRequirements Analysis

Tata consultancy services ltd

System Engineer

Dec 2011Jan 2015 · 3 yrs 1 mo · Chennai Area, India

TeamworkRequirements Analysis

Education

Anna University Chennai

Bachelor of Engineering (B.E.) — Electronics and instrumentation Engg

Seventh Day Adventist

HSC — Maths with Computer Science

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