Senior Data Engineer

Start.io is a mobile marketing and audience platform that empowers the mobile app ecosystem. With direct integration into over 500,000 monthly active mobile apps, our platform processes enormous volumes of first-party data to drive intelligent, real-time decisions and fuel growth for our partners.

We’re looking for a Senior Data Engineer to join our Data Platform team — someone who thrives on solving complex problems at scale, enjoys working across technologies, and is passionate about real-time data pipelines, distributed systems, and performance optimization.

Job Description:

· Develop and own real-time streaming and batch data pipelines that process billions of records per day

· Own services and infrastructure for request enrichment, data exports, campaign analytics, fraud detection, and more - some handling hundreds of thousands of requests per second with strict low-latency SLAs

· Build end-to-end solutions - from design to deployment and monitoring.

· Work with technologies like Flink, Spark, Kafka, Protobuf, Kubernetes, Argo WF, Jenkins, Github, writing in Golang, Java/Scala and Python.

· Development of monitoring and alerting over critical Big Data pipelines

· Comfortable using modern AI-assisted development tools (e.g., GitHub Copilot, Cursor) to enhance coding, testing, and debugging

· Participate in a shared on-call rotation to support production systems and ensure high availability

· 4+ years of experience in backend or data engineering

· Proficiency in Golang

· Strong experience with Java and/or Scala

· Experience with Python & SQL

· Hands-on experience with streaming platforms (e.g. Flink, Spark , Kafka)

· Production experience with Kubernetes and containerized services

· Solid knowledge of cloud infrastructure (AWS / GCP / OCI)

· Familiarity with CI/CD, observability (Prometheus/Grafana), and distributed systems

· Versatile and able to context-switch effectively across projects and technologies

· Self-learner, responsible, independent and strong team player

· Excellent communication skills

Why Join Us?

· You’ll work on mission-critical systems that handle billions of events per day

· Join a high-caliber team solving large-scale, low-latency, and business-critical challenges

· You’ll have real ownership, autonomy, and room to grow technically and professionally

· You’ll be part of a great team that values collaboration, knowledge sharing, supporting each other while having fun along the way.

· We embrace modern AI tools (like GitHub Copilot and Cursor) to help boost development speed, uncover edge cases, and support creative problem-solving