Software engineer, generative AI (UK)

Writer; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Generous PTO

Medical and dental insurance

Parental leave (16 weeks)

Fertility and family planning support

Competitive pension scheme

Job summary

WRITER is hiring a software engineer focused on generative AI to empower the world\'s largest enterprises. You will design secure AI services, build scalable APIs, and own end-to-end architecture across distributed platforms.

Join a hybrid team based in London (also SF/NYC). Expect work on IAM, cloud deployments, and high‑throughput AI workflows with a strong emphasis on secure, scalable foundations.

Qualifications

• 3–5+ years as a software engineer with Python in production
• Proven expertise building and deploying generative AI apps
• Experience with microservices, RESTful APIs, and cloud platforms
• Hands‑on with AI tooling and developer workflows (LLMs, vector DBs)
• Security, IAM, SSO, OAuth, RBAC in enterprise contexts

Responsibilities

• Design and develop robust, secure AI services using Python
• Build high‑performance APIs and microservices for AI models
• Own architecture decisions from proposal to production
• Implement responsive UIs with React/TypeScript for user experiences
• Collaborate with product, data science, and DevOps teams
• Enable CI/CD, monitoring, and scalable, reliable operations

Skills

Python development

Generative AI

LLMs

RESTful APIs

Microservices

Docker

Kubernetes

React

TypeScript

Cloud platforms

Tools

Pinecone

Weaviate

pgvector

Claude

Cursor

GitHub Copilot

Job description

About WRITER

WRITER is the AI platform built for the world's most ambitious marketing and revenue teams, bringing the frontier of AI to the people who drive enterprise growth. With WRITER, autonomous agents work across the buyer journey, continuously executing on market signals and enterprise intelligence to grow revenue faster. Every agent action and asset is grounded in trust, built on an Enterprise Brain that unites brand, product, and company knowledge with fiduciary-grade governance and compliance.

Fortune 500 companies are transforming how they go to market with WRITER, including 3 of the top 5 US banks, 2 of the 5 largest global CPG conglomerates, and 4 of the top 5 US healthcare insurers. Founded in 2020, WRITER is backed by investors including Insight Partners, ICONIQ, Radical Ventures, Premji Invest, Balderton, B Capital, Salesforce Ventures, Adobe Ventures, Accenture, Citi Ventures, IBM Ventures, WndrCo, and others. Learn more at WRITER.com .

About the role

Imagine stepping into a role where your code directly empowers the world's largest enterprises to safely adopt superintelligence. As a software engineer, generative ai at WRITER, you'll be at the forefront of expanding human capacity by building the secure, scalable foundation that allows our generative AI solutions to thrive in complex corporate environments. The impact of this work is massive - for example, in the consumer packaged goods industry alone, our AI adoption is driving 69% revenue increases and 72% cost reductions.

This role is designed for a well-rounded engineering generalist who leans heavily into generative AI while bringing a whole-systems mindset to architectural design. If you thrive on proactivity without red tape and love owning projects from proposal to deployment, you'll shape the future of AI and contribute to a product that's changing how the world works. This is a hybrid role based out of our San Francisco, New York City, or London hubs. You'll report to an engineering director or a senior engineering manager.

We are open to hiring for this role at multiple levels, from senior to staff software engineer, with compensation ranges scaled to match your experience and expertise.

What you'll do

• Design and develop robust, secure, and scalable generative AI services and applications using Python and modern frameworks to drive enterprise-wide transformation
• Build and optimize high-performance, low-latency APIs and microservices to integrate advanced AI models and sophisticated agentic workflows into our core platform
• Act as a whole-systems thinker by making meaningful system design decisions and owning the architecture of core platform components from initial proposal through production deployment
• Implement and maintain responsive user interfaces using technologies like React and TypeScript to deliver intuitive user experiences and bridge the gap between backend services and frontend enablement
• Drive proactivity without red tape by clearly communicating changes, plans, and proposals to cross-functional teams and collaborating closely with product managers, data scientists, and DevOps engineers
• Partner with DevOps teams to build continuous deployment, logging, and monitoring systems that ensure top-tier performance, security, and reliability across distributed workloads

What you need

• 3-5+ years of hands-on experience as a software engineer with a strong emphasis on Python development in production environments
• Proven expertise in building and deploying generative AI applications, leveraging LLMs, vector databases like Pinecone, Weaviate, or pgvector, and modern open-source agentic frameworks
• Practical experience with microservices architecture, RESTful APIs, cloud platforms such as AWS, GCP, or Azure, and containerization with Docker and Kubernetes
• Solid grasp of modern web technologies including FastAPI, Asyncio, database systems like PostgreSQL, and hands-on experience leveraging AI developer tooling like Claude, Cursor, or GitHub Copilot to accelerate your engineering workflows
• Exposure to enterprise architecture including practical experience implementing IAM, SSO, SAML, OAuth, OIDC, RBAC, robust security best practices, or building services for enterprise administration and billing systems
• A Connect mindset that thrives in collaborative settings where you actively engage with cross-functional teams and mentor other engineers, a Challenge spirit that drives you to tackle complex technical hurdles and proactively suggest innovative improvements, and an Own attitude where you take full accountability for delivering high-quality, resilient, and scalable code from conception to production

Benefits & perks (UK full-time employees):

• Generous PTO, plus company holidays
• Comprehensive medical and dental insurance
• Paid parental leave for all parents (16 weeks)
• Fertility and family planning support
• Competitive pension scheme and company contribution
• An