Senior ML Engineer (Agentic Search)

Jobgether; Schweiz; On-site; CHF 140,000 - 200,000; Full time

Benefits offered by this job

Competitive compensation

Career development

Flexible work options

International environment

Job summary

Jobgether, on behalf of a partner company, seeks a Senior ML Engineer (Agentic Search) based in Switzerland. You will design, train, and deploy models powering retrieval, ranking, and indexing at scale, contributing to a high-availability AI search platform.

You will lead ML capabilities for large-scale, agent-oriented search systems, improve search quality, and work with distributed teams to bring models into production while balancing latency, cost, and scalability.

Qualifications

• 5+ years of software engineering or applied ML experience.
• Strong programming skills in Python, Go, or C++.
• Experience deploying ML models in production systems.
• Hands-on with retrieval, ranking, or recommendation systems.
• Familiar with large-scale data processing and high-throughput environments.
• Ability to design evaluation frameworks and meaningful metrics.

Responsibilities

• Design, train, deploy, and maintain ML models for retrieval, ranking, and search relevance in production environments.
• Build and optimize embedding-based indexing and large-scale information retrieval systems.
• Develop ML models supporting web crawling, data selection, and content understanding.
• Define meaningful quality metrics for agent-native search and build evaluation pipelines.
• Work on large-scale systems handling high-throughput query workloads and production traffic.
• Collaborate with engineering teams to integrate ML models into production services and infrastructure.

Skills

Python/Go/C++

Production ML deployment

Retrieval & ranking

Large-scale data systems

ML fundamentals

Analytics & problem solving

Ownership & collaboration

Job description

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior ML Engineer (Agentic Search) based in Switzerland.

Join an innovative engineering team building an agent-native search platform that enables AI systems to access fresh, relevant, and reliable information in real time. As a Senior ML Engineer, you will design, train, and deploy machine learning models powering retrieval, ranking, and indexing at scale. You will help solve complex challenges in search relevance, large-scale data processing, and production ML systems. Working across machine learning and software engineering, you will contribute to a high-availability platform supporting demanding, high-throughput workloads. You will collaborate with engineering teams to translate advanced ML techniques into reliable production services. This role offers substantial technical ownership, opportunities to shape architecture, and the chance to influence the future of AI-powered information access.

Accountabilities:

You will lead the development and optimization of machine learning capabilities for large-scale, agent-oriented search systems. Your work will focus on improving search quality, retrieval performance, and operational efficiency while collaborating with engineering teams to bring advanced models into production.

• Design, train, deploy, and maintain machine learning models for retrieval, reranking, and search relevance in production environments.
• Build and optimize embedding-based indexing and large-scale information retrieval systems.
• Develop machine learning models supporting web crawling, data selection, and content understanding.
• Define meaningful quality metrics for agent-native search and build robust model evaluation pipelines.
• Work on large-scale systems handling high-throughput query workloads and continuous production traffic.
• Collaborate with engineering teams to integrate ML models into production services and infrastructure.
• Analyze trade-offs between latency, search quality, scalability, and operational cost.
• Research, experiment with, and apply state-of-the-art techniques in search, retrieval, and LLM-integrated systems.
• Contribute to product strategy, technical architecture, and engineering decisions.
• Continuously improve model performance, evaluation methods, and production reliability.

Requirements:

The ideal candidate brings strong applied machine learning or software engineering experience, a solid understanding of modern ML techniques, and practical expertise deploying models in production. You should be comfortable tackling complex retrieval and ranking problems, working with large-scale data systems, and collaborating with distributed teams in a fast-moving environment.

• At least 5 years of experience in software engineering or applied machine learning.
• Strong programming skills in Python, Go, or C++.
• Proven experience deploying and operating machine learning models in production systems.
• Hands-on experience with retrieval, ranking, recommendation systems, or related machine learning applications.
• Strong understanding of machine learning and modern deep learning techniques.
• Experience working with large-scale data systems and high-throughput environments.
• Ability to design evaluation frameworks and define meaningful model performance metrics.
• Strong analytical, problem-solving, and critical-thinking skills.
• A product-oriented mindset, with a focus on measurable impact, experimentation, and iterative improvement.
• Ability to take ownership of technical challenges and collaborate effectively with distributed teams.

Nice-to-have qualifications:

• Experience with search engines or large-scale information retrieval systems.
• Familiarity with embeddings, transformer architectures, and modern natural language processing techniques.
• Experience developing LLM-powered applications or agent-based systems.
• Contributions to open-source projects, technical publications, or conference presentations.
• Participation in competitive machine learning initiatives, such as Kaggle, or other evidence of strong technical expertise.

Benefits:

• Competitive compensation.
• Career development and continuous learning opportunities.
• Flexibility and meaningful ownership of technical work.
• Collaborative, innovative, and fast-paced engineering culture.
• Opportunity to contribute to impactful AI projects and advanced search technologies.
• International working environment with experienced engineering and research teams.
• Opportunity to influence technical architecture and help shape emerging AI infrastructure.

How Jobgether works:

We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.

We appreciate your interest and wish you the best!