Software Engineer

Electric Twin; London; On-site; GBP 60,000 - 90,000; Full time

Benefits offered by this job

Competitive salary and equity package

Health insurance

Pension and holiday benefits

Rapid professional growth

Job summary

A leading AI consulting firm in London seeks a Software Engineer to work on full stack solutions, from optimizing inference pipelines to building impactful B2B SaaS products. Responsibilities include developing Python-based platforms and collaborating with data scientists. Ideal candidates have solid software engineering fundamentals and thrive in dynamic environments. Competitive salary and benefits are offered.

Qualifications

• Experience in shipping production software and ownership of systems end-to-end.
• Ability to debug and optimize systems across different domains.
• Willingness to work in dynamic environments driven by business priorities.

Responsibilities

• Develop and maintain Python-based platform for simulations.
• Create B2B SaaS products solving business problems.
• Implement monitoring and CI/CD pipelines for system reliability.
• Collaborate with data science team to translate research innovations.

Skills

Software engineering fundamentals

Modern programming languages

Strong problem-solving skills

Collaboration in cross-functional teams

Excellent communication

Tools

Python

TypeScript/JavaScript

PostgreSQL

GitHub

Google Cloud Platform

Job description

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We use foundational models to create synthetic populations that represent real populations with 92% accuracy. Leading brands use these digital twins to test strategies, understand audiences, and make decisions in days rather than months - without the cost and delays of traditional market research.

Our platform spans 155 countries and 2 million synthetic personas. When a brand needs to understand how their target audience will respond to a new campaign, they get answers in seconds instead of weeks. Million-pound decisions are based on our results.

We've seen firsthand how crucial good insights are in high-pressure situations - our team has experience across campaigns, crisis response, and strategic operations where decisions have real consequences. Electric Twin is the tool we wish we'd had. That's why we built it.

What The Job Involves

You'll work across the full stack - from optimizing LLM inference pipelines to building B2B SaaS products. We value engineers who can take ownership of complex problems and collaborate effectively with world-class data scientists and domain experts.

Your responsibilities:

• Build Production Systems: Develop and maintain our Python-based platform that powers synthetic population simulations, working with PostgreSQL databases and deploying on Google Cloud Platform
• Deliver Client Impact: Create TypeScript/JavaScript B2B SaaS products that solve real business problems for major brands, working directly with product and commercial teams
• Ensure System Reliability: Implement monitoring, testing, and GitHub Actions CI/CD pipelines to maintain high availability for systems that influence million-pound business decisions
• Collaborate Across Disciplines: Partner closely with our data science team to translate research innovations into robust, scalable production systems
• Drive Technical Excellence: Contribute to engineering standards and systematic approaches as we scale our platform and grow the team
• Solve Diverse Challenges: Work across different technical domains - from optimizing data processing pipelines to building intuitive B2B SaaS experiences to ensuring system performance under high load
  
  

Environment:

• Small, focused team with direct access to leadership and clients
• Office-based culture (4-5 days per week) with frequent cross-team collaboration
• Results-driven environment where good engineering enables rapid business impact
• Opportunity to work with innovative brands and see the immediate impact of your work
  
  

This role suits engineers who thrive on variety and impact. If you prefer narrow specialization or lengthy planning cycles, this might not be the right fit. But if you want to solve challenging problems with immediate business consequences, let's talk.

Requirements

The engineering challenge is building systems reliable enough to power these high-stakes decisions. You'll work across data pipelines processing billions of tokens, real-time simulation platforms, and B2B SaaS products that make complex AI feel intuitive.

Essential:

• Strong software engineering fundamentals with experience in modern programming languages
• Proven track record of shipping production software and taking ownership of systems end-to-end
• Experience working collaboratively in cross-functional teams with diverse technical backgrounds
• Strong problem-solving skills with the ability to debug and optimize systems across different domains
• Excellent communication skills and genuine interest in understanding client and business needs
• Comfortable working in dynamic environments where business priorities drive technical decisions
• Willingness to work with our tech stack: Python (server-side), TypeScript/JavaScript (client-side), PostgreSQL, GitHub, and Google Cloud Platform
  
  

Desirable:

• Experience with Python, TypeScript/JavaScript, PostgreSQL, or Google Cloud Platform
• Background in building scalable systems, APIs, and data-intensive applications
• Familiarity with AI/ML systems, large language models, or high-throughput data processing
• Experience with GitHub Actions, CI/CD pipelines, monitoring, and observability
• Interest in market research, behavioral science, or business applications of AI
  
  

Benefits

• Competitive salary and equity package
• Opportunity to work on technology that influences major business and policy decisions
• Rapid professional growth in a scaling company with exceptional leadership
• Direct exposure to diverse industries and high-stakes decision-making
• Comprehensive benefits including health insurance, pension and holiday

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Other

• Industries

  IT Services and IT Consulting

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