Senior Software Engineer

At Flexciton, we work with high-tech factories built with investments worth hundreds of millions of dollars, producing advanced chips at the atomic level. It can take up to nine months to fabricate these cutting-edge products.

We are proud to be the only SaaS product in the world that plans and schedules production in high-tech semiconductor fabs, using complex algorithms in real-time, all from our London office. We generate more than 10,000 schedules daily to operate hundreds of multimillion-dollar semiconductor manufacturing equipment in photolithography, etching, metal deposition, and metrology.

Our technology consistently delivers the best production schedules, and leading companies like Seagate trust Flexciton to run their production 24/7. With operations across the US, Europe, and expansion into Asia, we are on a path to realise our vision for the Autonomous Factory.

Job Summary

We're seeking a Senior Software Engineer to drive complex technical initiatives and deliver high-quality solutions across our manufacturing automation platform. As an experienced individual contributor, you'll work independently on critical features, contribute to architectural decisions, and mentor junior team members while helping maintain our high engineering standards as we continue to scale.

Over the next 12 months you will be involved in:

• Scaling our operations and managing increasing platform complexity, identifying optimal trade-offs between cost-effectiveness, security, and robustness to maximize productivity for complex wafer fabrication facilities

• Implementing AI tools throughout our development and testing workflows to increase productivity, improve quality, and deliver more value to customers faster and more reliably

• Leading the development of new products and driving complex feature solutions from conception to market

• Designing and delivering internal automation solutions to support our expanding factory network, while developing innovative manufacturing automation and autonomy solutions that bring greater value to both new and existing wafer manufacturing segments

Key Responsibilities

Technical Ownership & Development

• Take ownership of significant features and technical components across our Python-based platform

• Design and implement reliable systems for data processing and optimisation workflows

• Contribute to architectural decisions and technical design discussions

• Provide code reviews and technical guidance to junior team members

• Evaluate new technologies and contribute to technical standard-setting

Platform Development

• Build and maintain data processing pipelines that handle semiconductor fab data

• Develop and enhance our REST APIs and microservices

• Implement data science workflows in production-grade Python

• Create reusable components that support rapid development cycles

Engineering Quality

• Apply and advocate for software engineering best practices including testing and CI/CD

• Contribute to system reliability, performance optimisation, and maintainability improvements

• Collaborate with optimisation engineers to implement mathematical models in code

• Participate in technical design reviews

Required Experience

• 4+ years of software development experience

• Experience building Python-based systems and deploying to production

• Demonstrated ability to work independently on complex technical problems

• Solid understanding of software architecture and system design principles

• Experience with modern development practices including testing and CI/CD

• Experience working with APIs and data processing

• Familiarity with cloud platforms (preferably Azure)

Nice-to-have

• Experience mentoring junior engineers

• Experience with mathematical optimisation techniques including MILP and LP

• Experience with Rust

• Understanding of distributed systems

What we can offer you:

• Competitive salary based on skills and experience

• Stock Options so when we make it big - so do you!

• L&D Opportunities

• We are determined to continuously develop ourselves, our company and our teams. We have a £500 training allowance for every employee. We also have our mini library where we keep adding books every week. We want to be able to create as many opportunities for our teams' growth as possible.

• Hybrid working model of 3 days in the office (Monday, Tuesdays and Fridays) and 2 days working from home.

• Breakfasts and Snacks Our office is stocked with snacks, drinks, fruits, cereal and we have an onsite Barista courtesy of WeWork.

• Tasty Tuesdays Company lunches in the office every Tuesday.

• Quarterly team activity or dinner .

• Annual Team Trip Every year, we take our team to an annual retreat where we have strategy workshops, foster our culture and do lots of fun activities.

Why join us

Welcome to Flexciton, where innovation meets impact! We're not just a startup; we're a powerhouse of creativity, at the forefront of revolutionising the semiconductor industry. Picture this: our software, crafted by brilliant minds like yours, is shaping the very devices you're using right now.

We're not stopping here. We're scaling up, fast. We've been recognised globally as one of the most disruptive companies, and our potential is limitless. Our strength lies in our people – in a space where ideas flow freely, and every voice, including yours, can shape the future.

What we do matters. The factories we optimise create the technology that defines our world, from healthcare breakthroughs to cutting-edge communication devices. Join us, and you're not just joining a team; you're becoming a part of progress, a force that's transforming industries and leaving a mark on the world.

At Flexciton, your passion, your ideas, and your hard work don't just contribute; they drive us forward. There has never been a more exciting time to be a part of our story. Join us, and let's create a future where your innovations don't just matter – they inspire.

At Flexciton, we celebrate diversity and thrive in an inclusive atmosphere. We wholeheartedly embrace equal employment opportunities and believe in making our recruitment process accessible to all. Your unique abilities and perspectives are valued here. If you require any accommodations due to a disability or specific needs, please don't hesitate to inform us. Your comfort and success are our priority. Welcome to a place where everyone belongs.