# Member of Technical Staff (Machine Learning Engineer, Ranking Quality - Search)

Source: https://realanalystjobs.com/job/member-of-technical-staff-machine-learning-engineer-ranking-quality-search-perpl-374cf6e8
Member of Technical Staff (Machine Learning Engineer, Ranking Quality - Search) at Perplexity, based in Belgrade. Posted on 12 August 2026, read from Perplexity's own careers page (Ashby), which RealAnalystJobs re-checks daily and removes the role when it closes.

Updated 15 November 2026.

## Key facts

- Company: [Perplexity](https://realanalystjobs.com/companies/perplexity)
- Location: Belgrade
- Posted: Aug 12, 2026
- Employment type: Full time
- Source: Perplexity's careers page (Ashby), re-checked daily

## About this role

Perplexity is seeking an experienced Machine Learning Engineer to improve search quality across the middle and later stages of ranking. We are looking for a strong ranking generalist who can own ambiguous problems end to end and brings exceptional depth in either neural ranking or production ranking systems.

Responsibilities

• Push search quality forward through models, data, evaluation, infrastructure, or any other leverage available.

• Own ranking-quality problems end to end: define the evaluation, identify the bottleneck, build the solution, and ship it safely.

• Train and evaluate retrieval, ranking, and classification models, including neural and LLM-based approaches where appropriate.

• Build and operate ranking infrastructure, including feature computation, low-latency inference, multi-stage cascades, deployment, and monitoring.

• Make sound trade-offs across quality, latency, reliability, cost, and engineering complexity.

• Collaborate across Data, AI, Infrastructure, and Product while retaining ownership of the final quality outcome.

Qualifications

• Deep understanding of search or recommender systems and their evaluation.

• Proven ownership of a large-scale production ranking system or a substantial class of quality problems.

• Strong machine learning and software engineering skills across data, models, serving, and monitoring.

• Ability to drive ambiguous, cross-team problems without continuous task decomposition.

• Exceptional depth in either modern neural ranking methods or low-latency ranking systems and runtime.

Description from Perplexity's public careers feed, reproduced so you can read the role here. Apply on the company's own site; Real Analyst Jobs never submits anything for you.

## How to apply

Open [this role on Real Analyst Jobs](https://realanalystjobs.com/job/member-of-technical-staff-machine-learning-engineer-ranking-quality-search-perpl-374cf6e8) and use Apply now there to reach the employer's application. The listing is re-checked against Perplexity's careers page daily and removed when it closes.

## Perplexity

6 open analyst roles on Real Analyst Jobs. [More roles at Perplexity](https://realanalystjobs.com/companies/perplexity)

## More like this

### Other open roles at Perplexity

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- [Member of Technical Staff (Search Quality Analyst)](https://realanalystjobs.com/job/member-of-technical-staff-search-quality-analyst-perplexity-92c26365), Belgrade
- [Governance, Risk & Compliance Analyst](https://realanalystjobs.com/job/governance-risk-and-compliance-analyst-perplexity-a108dea0), San Francisco California, USA (On-site)

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## Sources and links

- [This role on Real Analyst Jobs](https://realanalystjobs.com/job/member-of-technical-staff-machine-learning-engineer-ranking-quality-search-perpl-374cf6e8)
- [Perplexity on Real Analyst Jobs](https://realanalystjobs.com/companies/perplexity)
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