Senior Software Engineer
ProlificSan Francisco$200k – $250kPosted 21 February 2026
Tech Stack
Job Description
<h2 style="text-align: center;"><span style="color: rgb(126, 140, 141);">Se</span><span style="color: rgb(0, 0, 0);"><span style="color: rgb(126, 140, 141);">nior Software Engineer</span> </span></h2>
<p style="text-align: center;"><span style="color: rgb(126, 140, 141);">Engineering</span></p>
<p><span style="color: rgb(126, 140, 141);"><em> </em></span></p>
<p style="text-align: center;"><span style="color: rgb(126, 140, 141);"><em> Prolific</em></span></p>
<p><span style="color: rgb(0, 0, 0);">Prolific is not just another player in the AI space – we are the architects of the human data infrastructure that's reshaping the landscape of AI development. In a world where foundational AI technologies are increasingly commoditized, it's the quality and diversity of human-generated data that truly differentiates products and models.</span></p>
<p style="text-align: center;"> </p>
<p style="text-align: center;"><span style="color: rgb(126, 140, 141);"><em>The role</em></span></p>
<p>We’re looking for impact-focused Software Generalists to join our specialized team focused on serving frontier model creators and enterprise AI application developers. As a full-stack engineer, you will work across Prolific’s domains to solve customer and product problems.</p>
<p>This is an exciting opportunity to work directly with frontier AI companies, making critical technical decisions that balance scrappy startup execution with scalable, reliable engineering, as Prolific revolutionizes research for the AI community. You'll will have regular in person collaboration with customers and our US team, as well as collaborate closely with our UK-based tech teams.</p>
<p> </p>
<p style="text-align: center;"> </p>
<p style="text-align: center;"><span style="color: rgb(126, 140, 141);"><em>What you’ll bring to the role</em></span></p>
<ul>
<li>Over 4 years of experience in a product engineering role</li>
<li>Can translate business concepts into software models</li>
<li>Ability to quickly learn and adapt across the breadth of Prolific’s domains</li>
<li>Familiar working in both monoliths and distributed systems</li>
<li>Strong communication and collaboration skills for direct customer interaction</li>
<li>Good understanding of modern web applications and architecture design patterns</li>
<li>Experience supporting applications in production environments</li>
<li>Judgment to balance scrappy startup execution with scalable, reliable engineering</li>
<li>Comfort with rapid iteration and responding to customer queries with urgency</li>
<li>Experience with some of our technology stack:
<ul>
<li>Python (we use Django Fast API)</li>
<li>TypeScript and JavaScript (we use Vue.js)</li>
<li>SQL and NoSQL databases (we use MongoDB and PostgresSQL)</li>
<li>Building and deploying to the cloud (we use GCP, Kubernetees, Github Actions CircleCI)</li>
<li>Instrumenting, monitoring observability (we use Datadog)</li>
</ul>
</li>
</ul>
<p> </p>
<p style="text-align: center;"> </p>
<p style="text-align: center;"><span style="color: rgb(126, 140, 141);"><em>What you’ll be doing in the role </em></span></p>
<p>This is a unique engineering role at Prolific.</p>
<p>In this role, you will operate with high ownership and a product mindset, at start-up pace, to solve customer problems and capture business opportunities irrespective of the technology required to do so.</p>
<p>You will be part of a cross-functional Product Engineering team, optimised for the success of a single customer group. You will collaborate directly with account managers, customer success specialists and customers to deeply understand their problem spaces. You will ideate and build with autonomy, supported by a high-performing team.</p>
<p>This role will see you work across Prolific domains to solve customer problems, needing you to get up to speed quickly and deliver across shared codebases to a high engineering standard. You will also help support our systems in production respond to incidents when required.</p>
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