Senior Software Engineer, Payment Protection

Sift is the leader in Digital Trust & Safety, helping businesses protect themselves and their customers from fraud and abuse. We combine machine learning, behavioral analytics, and cutting-edge AI to power trust and reduce friction across the internet’s most valuable platforms.

We’re looking for a Senior Software Engineer to join our Payment Protection team and help shape the future of Trust & Safety. By delivering clear, accurate risk assessments at key moments in the end-user journey, we enable businesses to prevent fraud losses while creating seamless, adaptive experiences for their customers.

Our R&D team includes more than 100 engineers, with over 40+ based in Ukraine.

Our technology stack includes Java, GCP (Pub/Sub, Dataflow, BigTable, BigQuery), Kafka, Apache Flink, Dropwizard, gRPC, and Snowflake.

What We’re Looking For:

6+ years of experience building distributed backend systems with Java or Scala.
3+ years of experience working with large datasets using Apache Spark, MapReduce, or similar technologies.
Proven experience designing and maintaining scalable public APIs.
Deep expertise with large-scale NoSQL databases (HBase, Cassandra, Bigtable, etc.).
Hands-on experience setting up, managing, and deploying cloud infrastructure (AWS/GCP).
Strong software engineering fundamentals (data structures, algorithms, distributed systems) and excellent debugging, testing, and problem-solving skills.

Bonus Points For:

Experience with stream-processing frameworks (Apache Flink, Apache Beam, Dataflow, etc.).
Experience with HBase, BigTable, Kafka, ZooKeeper.

We Offer:

Flexible hours
Minimal meetings
Engagement until year-end (with possible extension)
$35–40/hour

Interview Process:

45 min Intro with Recruiter
60 min Technical assessment (coding + architecture design)
45 min Project deep dive
30 min Behavioral interview with Engineering Manager

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