Senior Software Engineer – Data Search

Modash

. Improve creator discovery across 400M+ profiles and billions of media files through retrieval, filtering, ranking, relevance, speed, and product decisions .

Posted 10/3/2026full-timeRemote • France, Estonia, Germany, Netherlands, Poland, CzechiaSenior💰 €100,000 - €130,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in building large-scale data systems and backend products, with a focus on multimodal embeddings and distributed systems. Proficient in evaluating models and technologies while ensuring reliability, cost-effectiveness, and performance in production environments.

Highest-signal resume keywords

Large-Scale Data SystemsMultimodal EmbeddingsDistributed Systems DesignProduct Development LifecycleTechnical Communication

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Model EvaluationSystem ArchitectureData Flow DesignScalabilityOperational TradeoffsLLM-Powered FeaturesSemantic SearchRanking AlgorithmsModel DeploymentAutonomous Problem Solving

Soft Skills

CuriosityCollaborationCommunication

Tools & Technologies

AWSGCPPythonTypeScriptNode.jsPySparkElasticsearchSageMakerDynamoDBAirflow

Industry Keywords

Creator EconomyData QualityRetrievalRankingProduct Decisions

Tech Stack

Tools & technologies

AirflowApacheAWSDistributed SystemsDynamoDBElasticSearchGoogle Cloud PlatformJavaScriptNode.jsPySparkPythonTypeScript

About the role

Key responsibilities & impact

Improve creator discovery across 400M+ profiles and billions of media files through retrieval, filtering, ranking, relevance, speed, and product decisions
Build systems that generate and use embeddings from images, video, text, and audio at massive scale
Evaluate models and technologies while balancing cost, latency, and quality
Move promising search approaches from experiments into reliable production systems
Shape problems, gather requirements, design architecture, write code, release features, measure outcomes, and iterate
Inspect retrieval and ranking stages to identify and fix relevance issues
Build and test multimodal embedding pipelines
Collaborate with Data Insights on datapoint definitions, coverage, and data-quality requirements
Test reranking models against real customer queries and assess relevance, latency, and inference cost
Review production metrics, investigate regressions, and determine whether fixes belong in models, data, query logic, or product
Collaborate with Data Core, Data Insights, product teams, customers, and company leadership
Participate in intro, coding, system design, team, and CEO culture/alignment interviews

Requirements

What you’ll need

Solid experience building large-scale data or backend products where volume, latency, reliability, and cost matter
Experience shipping products from concept to production, including scoping, architecture, implementation, release, measurement, and iteration
Experience designing distributed systems, including throughput, failure modes, data flow, scalability, and operational tradeoffs
Experience building LLM-powered or agentic features in production
Experience working autonomously on ambiguous problems
Ability to communicate technical tradeoffs clearly across engineering and non-engineering teams
Experience in a fast-moving product environment
Bonus: experience with multimodal embeddings, vector databases, semantic search, ranking algorithms, model deployment, self-hosted models, or GPU infrastructure
Curiosity about the creator economy is beneficial
Availability for some work-hour overlap with GMT+3
Technical familiarity with AWS, GCP, Pulumi, Python, TypeScript, Node.js, PySpark, AWS EMR, Airflow, Milvus, Zilliz, Elasticsearch, LLM batch APIs, Apache Iceberg, SageMaker, DynamoDB, S3, Glue, Kinesis, Lambda, ECS, and Aurora

Benefits

Comp & perks

Stock options
Flexible hours
Unlimited paid vacation
Personal development support, including courses, books, and conferences
Real ownership of difficult search problems from idea to production
Regular offsites
Fully remote work in Europe
Salary and stock option compensation package