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4,664 AdTech jobs

Open tech roles at companies in advertising and marketing technology.

4.7K jobs
Klaviyo Backed by Accel
25 views 7 days ago

Sr Solution Engineer (Commercial) - German Speaking

Open 15d EuropeSenior 4 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Ireland permit employer — This employer was issued Irish employment permits this year or in the two years before, per the Department of Enterprise, Tourism and Employment. The permits belong to the employer and are not a commitment to sponsor this role.
Ireland
Dublin

Senior pre-sales solutions engineer on Klaviyo's EMEA Commercial team, partnering with Account Executives to win German-speaking SMB deals through technical discovery, tailored demos, and proofs of concept for Klaviyo's ecommerce marketing and customer-data platform. Requires fluent German and English plus B2B SaaS pre-sales experience.

AI API Automation Claude Code E-commerce +11 skills
80K – 120K €
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Smartly.io
10 views 7 days ago

Project Manager

Open 41d APAC 3 questions
Philippines

Project Manager owning end-to-end delivery of digital ad campaigns at Smartly — coordinating production, QA, launch, and optimization across internal teams and clients. Requires 3+ years of project management in digital advertising, strong stakeholder communication, Google Workspace skills, and flexibility across global shifts.
Klaviyo Backed by Accel
77 views 7 days ago

Senior Lead AI Engineer - G&A Systems

New North AmericaLead 8 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Ireland permit employer — This employer was issued Irish employment permits this year or in the two years before, per the Department of Enterprise, Tourism and Employment. The permits belong to the employer and are not a commitment to sponsor this role.
United States
Boston, MA

First dedicated AI engineer on Klaviyo's internal Finance Technology (G&A) team, building AI copilots, agents, and automated workflows for accounting, procurement, and revenue processes. Core stack includes Python, SQL, React, LLM platforms (OpenAI, Claude, Gemini), and finance systems like NetSuite, Zip, and Avalara/Vertex.

AI API Automation Data Engineering E-commerce +18 skills
180K – 270K $
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Smartly.io
21 views 7 days ago

Product Marketing Lead – CTV

Open 144d North AmericaLead Salary + equity 2 questions
United States
New York, New York

Are you passionate about how CTV, agencies, and omnichannel video are reshaping modern advertising? Join Smartly to define and scale the next phase of our AI-powered platform across CTV and social. As Smartly expands…

Go-to-Market
150K – 190K $
Smartly.io
60 views 7 days ago

Software Engineer, Large-Scale Data Systems

Open 144d HybridEurope 2 questions
Finland
Helsinki, Uusimaa

We are looking for a Software Engineer to join team Aqueduct, a team building our data platform for powering large-scale cross-platform advertising. Our ideal candidate is a professional who has experience in the…

Agentic AI AI API Automation BigQuery +20 skills
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Smartly.io
53 views 7 days ago

Senior Software Engineer, Meta

Open 144d HybridEuropeSenior 2 questions
Finland
Helsinki, Uusimaa

Senior Software Engineer at Smartly.io’s Meta Workspaces team designs and maintains backend services and full-stack features for Meta advertising automation, integrating with Meta Marketing API to scale high-volume workflows for global customers.

AI API Api Design Automation Cloud +10 skills
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Klaviyo Backed by Accel
23 views 7 days ago

Sr. Product Manager, Growth (PLG)

Open 22d North AmericaSenior 4 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Ireland permit employer — This employer was issued Irish employment permits this year or in the two years before, per the Department of Enterprise, Tourism and Employment. The permits belong to the employer and are not a commitment to sponsor this role.
United States
Boston, MA

Senior Product Manager on Klaviyo's Growth, Billing & Monetization team, owning product-led growth initiatives across the customer lifecycle — signup, onboarding, activation, conversion, retention, and expansion. Day-to-day involves experimentation, behavioral data analysis, and pricing/billing experiences in a B2B SaaS environment.

AI Analytics CRM E-commerce Go-to-Market +2 skills
136K – 204K $
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Klaviyo Backed by Accel
60 views 7 days ago

Software Engineer II - SMS International

Open 35d UKMiddle 4 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Ireland permit employer — This employer was issued Irish employment permits this year or in the two years before, per the Department of Enterprise, Tourism and Employment. The permits belong to the employer and are not a commitment to sponsor this role.
United Kingdom
London

Full-stack engineer on Klaviyo's SMS International team within Mobile Platforms, building and scaling brand-new services to expand SMS into new countries and launch RCS messaging. Works with Python, Django, Go, React, AWS, Kubernetes, and various data stores.

AI Android Aurora AWS CI/CD +23 skills
68K – 102K £
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Klaviyo Backed by Accel
85 views 7 days ago

Engineering Manager, Marketing Engineering & AI Agents - Amplify

Open 35d HybridNorth America 4 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Ireland permit employer — This employer was issued Irish employment permits this year or in the two years before, per the Department of Enterprise, Tourism and Employment. The permits belong to the employer and are not a commitment to sponsor this role.
United States
Boston, MA

Engineering manager leading Klaviyo's Amplify Marketing & Content Platform teams, owning klaviyo.com, Klaviyo Academy, and the Help Center while replacing manual content, translation, and asset production with reliable AI agents. Hands-on stack spans Python, TypeScript/React, LLM tooling (MCP, Claude Code), Sanity CMS, and AWS.

A/B Testing Agentic AI Agile AI Analytics +26 skills
176K – 264K $
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Smartly.io
42 views 7 days ago

Senior Engineering Manager

Open 144d HybridEuropeSenior 2 questions
Finland
Helsinki, Uusimaa

Leads Smartly's Creative Engineering group team that builds and operates high-scale integration services connecting to external advertising platform APIs. The role blends people leadership (coaching, 1:1s, delivery focus) with hands-on technical guidance across Node.js, TypeScript, PostgreSQL, Kafka, Redis, Kubernetes, and React, hybrid from Helsinki.

Agile AI API Kafka Kubernetes +5 skills
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Smartly.io
35 views 7 days ago

Senior Software Engineer (Rendering)

Open 70d HybridEuropeSenior 2 questions
Finland
Helsinki, Uusimaa

Senior backend-oriented Fullstack Engineer on the Render team, owning vertical slices of a massive-scale creative production engine that renders billions of ad images monthly, using Node.js, TypeScript, PostgreSQL, and Kubernetes.

AI API Backbone.js DevOps Distributed Systems +7 skills
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Klaviyo Backed by Accel
49 views 7 days ago

Sr. Lead MarTech & AI Solutions Architect

Open 42d North AmericaLead 4 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Ireland permit employer — This employer was issued Irish employment permits this year or in the two years before, per the Department of Enterprise, Tourism and Employment. The permits belong to the employer and are not a commitment to sponsor this role.
United States
San Francisco, CA

Hands-on individual contributor who architects Klaviyo's marketing technology stack — owning how marketing data flows from lead intake to conversion and building a centralized marketing hub with embedded AI and automation. Core tech: HubSpot, Salesforce, NetSuite, Coupa, APIs/middleware, and generative/predictive AI.

AI Analytics API Automation Coupa +6 skills
156K – 234K $
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Klaviyo Backed by Accel
66 views 7 days ago

Software Engineer, Conversational Products & Agent Workflows

New North America 9 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Ireland permit employer — This employer was issued Irish employment permits this year or in the two years before, per the Department of Enterprise, Tourism and Employment. The permits belong to the employer and are not a commitment to sponsor this role.
United States
Boston, MA

Backend engineer on Klaviyo's Customer Agent team building an AI-native conversational platform: reliable backend systems, APIs, and agentic AI features (tool use, retrieval/RAG, orchestration, multi-step workflows). Core stack is Python with FastAPI/Django, async/event systems like Kafka and Celery, and AWS/Kubernetes.

Agentic AI AI API Automation AWS +19 skills
116K – 174K $
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Smartly.io
45 views 7 days ago

Senior Software Engineer - Authorisation

Open 144d HybridEuropeSenior 2 questions
Finland
Helsinki, Uusimaa

Senior Software Engineer designing and building Identity and Access Management microservices using NodeJS, TypeScript, Postgres, Kafka, and Kubernetes for Smartly.io's ad-tech SaaS platform.

AI API Authentication Cloud Cloud Native +18 skills
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Smartly.io
51 views 7 days ago

Senior Software Engineer (TikTok)

Open 71d HybridEuropeSenior 2 questions
Finland
Helsinki, Uusimaa

Build and evolve Smartly’s TikTok ad-tech platform, owning full-stack features from React UIs to Node.js backends and distributed services that automate ad campaign creation and optimization at scale.

AI API Api Design Automation Distributed Systems +7 skills
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Klaviyo Campus
578 views 7 days ago

AI Engineer I

Open 42d North AmericaInternshipJunior 10 questions
United States
Boston, MA

Early-career AI engineer at Klaviyo building backend systems and AI agents for its marketing platform serving 200K+ customers. Day to day is backend-heavy Python work (FastAPI/Django): scalable services, async pipelines, and deploying generative/agentic AI in production, including orchestration, RAG, and evals.

Agentic AI AI Distributed Systems Django E-commerce +8 skills
104K – 156K $
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Klaviyo Campus
171 views 7 days ago

AI Engineer Intern (Summer 2027)

Open 42d North AmericaInternshipIntern 10 questions
United States
Boston, MA

An 11-week paid summer engineering internship (June 1–August 13) at Klaviyo's Boston headquarters; interns work on-site 5 days a week and are placed on a full-stack, back-end, or front-end team building Klaviyo's ecommerce data and personalization platform.

Agentic AI AI Distributed Systems Django E-commerce +8 skills
60 – 60 $ / hr
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Klaviyo Campus
101 views 7 days ago

Machine Learning Engineer Internship-Summer 2027

Open 42d North AmericaInternshipIntern 9 questions
United States
Palo Alto, CA

An 11-week paid Summer 2027 internship (June 1–Aug 13) at Klaviyo's Palo Alto Tech Innovation Hub, working with ML and full-stack engineers to build, deploy, and scale models using deep learning, NLP, recommender systems, and generative AI on Klaviyo's massive customer data streams. In office 5 days a week; open to advanced-degree students.

Agentic AI Agile AI Data Science Deep Learning +9 skills
65 – 65 $ / hr
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Smartly.io
60 views last week

Senior Data Scientist

Open 144d HybridEuropeSenior 5 questions
Finland
Helsinki, Uusimaa

Senior Data Scientist on the AI Platform Team building and deploying scalable ML solutions for ad creatives and campaigns, using Python, modern ML frameworks (PyTorch/TensorFlow), and cloud infrastructure (AWS/GCP).

AI AWS Cloud Computer Vision C++ +15 skills
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Klaviyo Backed by Accel
31 views last week

Senior IT Systems Engineer

Open 54d North AmericaSenior 4 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Ireland permit employer — This employer was issued Irish employment permits this year or in the two years before, per the Department of Enterprise, Tourism and Employment. The permits belong to the employer and are not a commitment to sponsor this role.
United States
San Francisco, CA

Senior individual contributor on Klaviyo's corporate IT Systems team who owns enterprise systems end to end: identity (Okta/Entra, SSO/SCIM), macOS/iOS endpoint management via MDM (Jamf), and core SaaS platforms like Google Workspace and Slack. Leads automation and integration projects, acts as technical escalation point, and builds AI-assisted workflows; Python/Bash/PowerShell scripting and after

AI Ansible API Atlassian Authentication +44 skills
112K – 168K $
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