Backend Engineer (Scala/Java) — Scalable Systems & AI Tooling

GroundTruth; United States; Remote; USD 140,000 - 190,000; Full time

Benefits offered by this job

Parental leave

In-office meals

Health coverage

Wellness & gym benefits

Education reimbursement

Employee referral program

Dev tooling stipend

Job summary

GroundTruth is seeking a hands-on backend engineer to design, build, and operate large-scale services for our advertising platform. You will work with distributed, real-time systems, focusing on performance, reliability, and measurable outcomes.

You should enjoy debugging complex production issues and shipping clean, well-instrumented code. You should bring 3–5 years of production backend experience, deep data-structure knowledge, and proficiency in Scala/Java with Python tooling.

Qualifications

• 3-5 years building production backend systems.
• Strong in Scala or Java, plus Python for tooling and data work.
• Deep knowledge of data structures and algorithms.
• Solid grasp of concurrency and asynchronous programming.
• Fluency with CI/CD and shipping code safely.

Responsibilities

• Design, build, and operate backend services at scale.
• Work with distributed systems and asynchronous processing.
• Profile and tune performance and efficiency.
• Diagnose production symptoms and root causes.
• Integrate with caching, streaming, and data-storage systems; instrument for debuggability.
• Ship in small, reviewable increments through automated pipelines.

Skills

Backend systems

Scala/Java

Python tooling

Data structures & algorithms

Concurrency & async

CI/CD

AI fluency

Problem solving

Ownership

Learning mindset

Tools

AWS

EC2

ElastiCache

Bedrock/AgentCore

Job description

GroundTruth is seeking a hands-on backend engineer to design, build, and operate large-scale services for our advertising platform. You will work with distributed, real-time systems, focusing on performance, reliability, and measurable outcomes.

You should enjoy debugging complex production issues and shipping clean, well-instrumented code. You should bring 3–5 years of production backend experience, deep data-structure knowledge, and proficiency in Scala/Java with Python tooling.