Why This Job is Featured on The SaaS Jobs
SaaS search products live or die on the quality of their indexing layer, and this Senior C++ role sits directly in that core infrastructure. The remit spans engine-level performance, scalability, and reliability, indicating a mature, high-usage platform where incremental improvements compound across large volumes of content and queries. Work at this layer is tightly coupled to the end user experience even when it is far from the UI.
For a long-term SaaS career, indexing and retrieval engineering builds durable strengths in distributed systems, high-throughput processing, and pragmatic optimization. The focus on bottleneck analysis, concurrency, memory management, and core algorithms develops an engineer who can translate product requirements into measurable system behavior, a skill set that transfers across search, analytics, observability, and other data-intensive SaaS domains. Collaboration with data science and product also reflects how modern SaaS platforms integrate AI features with foundational infrastructure.
This role suits an experienced C++ engineer who prefers deep technical ownership and methodical iteration over greenfield feature churn. It will fit someone motivated by diagnosing complex systems, making trade-offs visible, and improving foundational components that other teams build on, especially in cloud-hosted or distributed environments.
The section above is editorial commentary from The SaaS Jobs, provided to help SaaS professionals understand the role in a broader industry context.
Job Description
The expert behind our proprietary C++ indexing technology
Could your next optimization improve how millions of pieces of content become searchable? As a Senior C++ Developer on our indexing team, you'll help evolve the core technology powering Coveo’s indexing and search engine.
You'll work on large-scale systems where performance, scalability, and reliability matter every day, helping shape the technologies behind our AI-powered search experiences.
As one of our Senior C++ Developers, you will: .
Design, develop, and optimize modern C++ code for Coveo’s indexing and search engine technologies.
Improve the performance, scalability, and reliability of core indexing algorithms and infrastructure.
Work on low-level systems challenges involving memory management, concurrency, data structures, distributed processing, and high-throughput indexing.
Analyze existing systems, identify bottlenecks, and implement improvements that make our engine faster and more efficient.
Contribute to the architecture of new core indexing capabilities that support Coveo’s search and AI-powered experiences.
Collaborate with engineering, data science, and product teams to transform complex search requirements into robust engine-level capabilities.
Here is what will qualify you for the role:
A minimum of about 5 years of experience in software development with C++, with familiarity with C++17 or newer as a strong asset.
Strong experience building performant, reusable, scalable, and maintainable code in complex systems.
A solid understanding of algorithms, data structures, concurrency, and systems-level performance considerations.
Resourcefulness, a growth mindset, and a track record of solving complex technical problems.
What would make you stand out:
Experience building large-scale indexing, search, or information retrieval systems.
Experience optimizing C++ applications for latency, throughput, or memory efficiency.
Experience developing cloud-hosted distributed systems.
Familiarity with vector search, AI-powered search, Elasticsearch, OpenSearch, Vespa, or similar technologies.
Do you think you can bring this role to life? Send us your application, we want to hear from you!
Join the Coveolife!
We encourage all qualified candidates to apply regardless of, for example, age, gender, disability, gaps in CV, national or ethnic background.
This job description was written by humans, assisted by AI. We may leverage technology in our hiring process to help us see the person behind the resume.
Coveo is committed to providing accessible employment practices. If you require accommodation due to a disability at any point during the recruitment process, please contact HR@Coveo.com to discuss your needs.
