Senior Full-stack Engineer

About the team:
You will be joining Gravity - our Core Platform team - the foundation that powers Sift's Digital Trust & Safety platform. We build the shared components, abstractions, and infrastructure that other engineering teams rely on to ship faster and smarter. Our customers are internal: we measure success by how much easier we make everyone else's job, and by keeping the platform maintainable, cost-effective, and built to last.
This role is intentionally full-stack. We need someone who can follow a problem wherever it lives - whether that's deep in backend logic or in a frontend component

BE Technical stack: Java, Dropwizard, GCP, Kubernetes, Kafka, BigTable, Spanner Graph DB, Postgres, Redis, gRPC, Python, Apache Airflow, Snowflake, BigQuery

FE Technical stack: ReactJS

What you’ll do:
Design and evolve highly scalable, distributed platform components that can reliably serve as shared building blocks across Sift’s ecosystem, even under heavy load

Deliver engineering solutions that address complex, cross-cutting customer and platform needs at scale, reducing the effort required for product teams to ship features

Collaborate closely with engineers within Gravity and partner teams to introduce and maintain shared services, data models, and libraries that multiple teams depend on

Continuously improve our platform engineering practices, tooling, and guardrails to simplify secure, compliant, and cost-effective operation of core systems

Opportunities for you:
Experience: Participate in highload platform and technical challenges to improve our core platform components, as well as building new capabilities

Professional growth: tri-annual Growth Cycles instead of performance review;

Knowledge Sharing: we have Tech Talks sessions. You will learn how to build components that handle petabytes of data and high fault tolerance

Culture for innovations: you can try your ideas on our bi-annual Hackathon

What would make you a strong fit:
5+ years of experience building distributed backend systems using Java;

3+ years experience designing/delivering highly-available services;

2+ years of experience building React-based FE applications, preferable platform areas

Experience with data pipelines

Degree in Computer Science or equivalent experience

Strong communication & collaboration skills - a team-first, product-first mindset

Benefits and perks:
Competitive total compensation package

401k plan

Medical, dental, and vision coverage

Flexible lifestyle wallet

Learning & development wallet

Flexible time off

Our interview process:
Introduction interview with the recruiter (45 minutes)

Hiring Manager interview (45 minutes)

Virtual onsite loop with the team (4 hours)

Let’s build it together:
At Sift, we are intentionally building a diverse, equitable, and inclusive workplace. We believe that diversity drives innovation, equity is a fundamental right, and inclusion is a basic human need. We envision a place where all Sifties feel secure sharing their authentic selves and diverse experiences with their teams, their customers, and their community – ultimately using this empowerment and authenticity to build trust and create a safer Internet.
This document provides transparency around how Sift handles the personal data of job applicants: https://sift.com/recruitment-privacy