Staff / Senior Software Engineer (Agentic Search) – Index

Responsibilities

We are representing a confidential AI cloud infrastructure organization seeking a Staff/Senior Software Engineer to build the indexing and data processing layer of a novel search platform designed specifically for AI agents.

In this role, you will focus on building systems that ingest, process, and organize massive volumes of data into efficient, queryable structures. You will work primarily on offline and nearline pipelines, ensuring that data is fresh, complete, and efficiently accessible by downstream retrieval systems. You will operate in an environment where throughput, scalability, and correctness are critical—designing systems capable of handling tens of gigabytes per second across continuously evolving datasets.

Your core responsibilities include:

• Design, implement, and operate large-scale indexing systems and data pipelines that sit at the core of search infrastructure
• Develop and optimize indexing strategies balancing performance, freshness, and resource efficiency
• Work on storage formats, compaction strategies, and update mechanisms to keep data accessible and current
• Ensure reliability and predictability of pipelines under high-throughput conditions
• Build well-tested components with clear responsibilities and interaction contracts, while remaining flexible as the system evolves
• Define and implement observability primitives, including structured logs, metrics, and data quality signals across offline and nearline pipelines
• Monitor throughput, resource usage, and cost, and drive optimizations when business needs require it
• Collaborate with runtime and ML teams to ensure indexing outputs meet retrieval and ranking requirements
• Enable safe experimentation on indexing strategies and data processing logic through controlled rollouts and clearly defined quality signals

What We're Looking For

Required qualifications:

• 5+ years of experience building production backend or data infrastructure systems
• Strong Go experience (C++/Rust is a plus)
• Experience with large-scale data processing systems (10+ GiB/sec throughput, petabyte-scale datasets)
• Experience building or operating databases, storage systems, data planes, or indexing pipelines
• Strong understanding of distributed systems, fault tolerance, consistency, and scalability
• Experience running production systems and handling operational incidents
• Systems-thinking mindset and ability to reason about end-to-end data flows

Strong candidates may also have experience with:

• Distributed data processing frameworks such as Spark, Flink, MapReduce, or Beam
• Content systems including scraping, proxying, or anti-bot infrastructure
• Ad tech, social networks, or other large-scale content platforms
• DBMS internals (open source or SaaS) and cloud infrastructure
• Open-source contributions or active involvement in the engineering community
• Competitive programming or CTF participation (ICPC, IOI, or similar)
• Conference talks or technical publications

Our talent team will conduct coding interviews as part of the selection process.

How We Work With You

When you apply through Get A Job.ai, our recruiting team will review your background and conduct an initial screening to understand your experience and career goals. If there's a strong match, we will submit your profile to our client for consideration. Please do not contact the client directly—all communication and coordination will be managed through our team to ensure a smooth and professional process.

This is a London-based opportunity with a fast-moving, innovative organization building cutting-edge infrastructure for AI systems.

Pay

Compensation details will be discussed during the screening process and are competitive for staff/senior-level engineering roles in London.

Equal Opportunity: Get A Job.ai is committed to inclusive hiring practices. We welcome candidates from all backgrounds and provide equal employment opportunities regardless of race, color, religion, sex, national origin, age, disability, or any other protected characteristic.