Job Title: Full-Stack Engineer

Company Name: OnSpot Data

Job Details: Hiring,Remotely,in,Denver,,CO,In-Office,or,Remote,120K-2M,Annually,Mid,level

Job Url: https://builtin.com/job/full-stack-engineer/8677958

Job Description: Full Stack Developer (AdTech Focus)
About the Role
We’re looking for a Full Stack Developer with strong experience building scalable, data-driven web applications and a deep interest in advertising technology. You’ll work across the stack to design, build, and optimize systems that power digital advertising workflows—such as audience targeting, ad serving, attribution, reporting, and real-time analytics.
This role sits at the intersection of engineering, data, and media, and is ideal for someone who enjoys solving complex problems at scale in a fast-moving AdTech environment.
What You’ll Do
Design, build, and maintain full-stack applications supporting AdTech use cases (campaign management, targeting, attribution, measurement, reporting)
Develop scalable backend services and APIs for high-volume, low-latency data processing
Build intuitive, performant front-end experiences for internal tools and customer-facing dashboards
Work with large datasets including event streams, impression logs, and conversion data
Collaborate with product, data, and analytics teams to translate advertising requirements into technical solutions
Optimize systems for performance, reliability, and scalability under real-time traffic
Implement data privacy, consent, and compliance considerations (GDPR, CCPA, etc.)
Participate in architecture decisions, code reviews, and technical roadmap planning
Required Qualifications
4+ years of experience as a Full Stack Developer or Software Engineer
Strong proficiency in modern backend languages and frameworks (e.g., Node.js, Play Framework, Scala, Python, Java, or Go)
Experience building APIs (REST and/or GraphQL)
Strong front-end experience with modern frameworks (Laravel, Vue, or Angular)
Solid understanding of relational and NoSQL databases (Postgres, MySQL, Athena, Redis, etc.)
Experience working with cloud platforms (AWS, GCP, or Azure)
Familiarity with event-driven architectures, message queues, or streaming platforms (Kafka, Pub/Sub, Kinesis)
Strong problem-solving skills and ability to work independently in a fast-paced environment

AdTech / Domain Experience (Strongly Preferred)
Experience in AdTech, MarTech, or media platforms
Understanding of digital advertising concepts such as:DSPs, DMP’s, SSPs, ad exchanges
Audience targeting and segmentation
Attribution models and measurement
Programmatic, CTV, mobile, and location-based advertising

Experience working with large-scale event data (impressions, clicks, conversions)
Familiarity with identity, cross-device graphs, or ID resolution
Knowledge of privacy-safe data handling and consent frameworks

Nice to Have
Experience with real-time bidding (RTB) systems
Data engineering experience (ETL pipelines, Spark, BigQuery, Redshift)
Experience with feature flags, A/B testing, or experimentation platforms
Familiarity with CI/CD pipelines and infrastructure as code
Prior work in high-scale, high-throughput systems

What We Offer
Opportunity to work on cutting-edge advertising technology at scale
Competitive salary and equity (if applicable)
Flexible work environment
Collaborative, engineering-driven culture
Real ownership over architecture and product direction