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sam sijen

@samsijen

Senior data ingestion engineer specializing in programmatic advertising, API integrations, and end-to-end ad operations optimization.

India

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What I'm looking for

I’m looking for a role where I own ad-tech data ingestion and API integrations, partner with engineering and performance teams, and optimize programmatic campaigns through rigorous QA, reporting, and automation.

I’m an AdTech Specialist and Senior Data Ingestion Engineer with deep expertise in programmatic advertising and end-to-end technical operations—from implementation workflows to post-launch optimization. I focus on accurate data ingestion, reliable integrations, and measurable campaign performance.

In my current work, I manage programmatic media planning and campaign execution through DV360, including campaign setup, audience targeting, budget allocation, performance monitoring, optimization, and campaign reconciliation. I also lead client onboarding for advertising data ingestion across platforms, validating access, QA’ing data completeness and integrity between Starburst and platform UI reporting, and mapping into OMNI.

I’m known for owning the full API app integration workflow—creating API apps, managing token lifecycle (OAuth 2.0, access/refresh tokens), and validating integrations using REST APIs and Postman. I collaborate with Sales, Product, Engineering, Performance Marketing, Ad Operations, clients, and publishers to troubleshoot delivery/attribution issues, improve efficiency, and deliver stakeholder-ready reporting (including End-of-Campaign Reporting).

Experience

Work history, roles, and key accomplishments

Current

AdTech Senior Engineer (Data Onboarding)

Current

Omnicom Media Group (Annalect)

Jun 2025 - Present (1 year 1 month)

Manage end-to-end client onboarding and data ingestion workflows, including QA between Starburst records and platform UI before mapping into OMNI. Also lead programmatic media planning and campaign operations using DV360 with Prisma for booking and reconciliation plus EOCR reporting.

Ad Tech Specialist - Senior Analyst

Aceolution India Pvt Ltd

Sep 2023 - May 2025 (1 year 8 months)

Provided technical and operational support across the advertising lifecycle for Microsoft Advertising (Xandr) and the DV360/CM360 ecosystem. Supported campaign implementation (pixels and conversion tracking), troubleshooting attribution/measurement issues, and delivered performance insights using SQL and analytics tools.

DV360 CM360 Campaign Setup Event Pixel Deployment Conversion Tracking Google Tag Manager (GTM)JavaScript Mobile Measurement Partners (AppsFlyer Adjust Branch SQL Excel Looker REST APIs Workflow Automation

Support Engineer

Flumes Energy

Aug 2021 - Aug 2023 (2 years)

Delivered hardware/software troubleshooting and L1 network/LAN support, including Office 365 assistance and end-user project support such as OS upgrades and compliance updates. Managed IT support tickets via Remedy and ensured SLA compliance with vendor coordination for timely resolution.

IT Support LAN Support Office 365 Asset Management software upgrades & Compliance Ticketing Remedy SLA Documentation Vendor coordination

L1 Support Engineer

KGISL Pvt Ltd

Sep 2018 - Dec 2020 (2 years 3 months)

Created and managed UC4/Automic jobs, workflows, calendars, schedules, dependencies, and FTP/SFTP transfers. Performed job execution, transport and reporting, incident/change management, compliance tasks, and used Shell and Perl scripting across Unix/Linux and Windows environments.