About UsSymbolica is an AI research lab pioneering the application of category theory to enable logical reasoning in machines.Were a well-resourced, nimble team of experts on a mission to bridge the gap between theoretical mathematics and cutting-edge technologies, creating symbolic reasoning models that think like humans precise, logical, and interpretable. While others focus on scaling data-hungry neural networks, were building AI that understands the

structures of thought

, not just patterns in data.

Our approach combines rigorous research with fast-paced, results-driven execution. Were reimagining the very foundations of intelligence while simultaneously developing product-focused machine learning models in a tight feedback loop, where research fuels application.Founded in 2022, weve raised over $30M from leading Silicon Valley investors, including Khosla Ventures,General Catalyst, Abstract Ventures, and Day One Ventures, to push the boundaries of applying formal mathematics and logic to machine learning.Our vision is to create AI systems that transform industries, empowering machines to solve humanitys most complex challenges with precision and insight.JoinustoredefinethefutureofAIbyturninggroundbreakingideasintoreality.About the RoleWere looking for

Senior Software Engineers

to take full ownership of delivering working systems from prototypes and high-level specs taking ideas from the research team, turning them into production-quality systems, and shipping them quickly.Youll work closely with researchers, ML engineers, and leadership to turn ambitious ideas into real products. You''ll be expected to move fast, handle ambiguity, and fill the critical execution gap between research and production.This role is perfect for someone who thrives on shipping who sees incomplete specs as an opportunity, not a blocker and who wants to build systems that work reliably, at scale, and in the real world.This is an

onsite role

based in our

London office (66 City Rd).Your FocusTranslate research prototypes and high-level concepts into production-quality softwareOwn deliverables end-to-end: take specifications, clarify requirements, and execute to completionBuild systems that are correct, reliable, maintainable, and performantWork closely with ML researchers and engineers to integrate research outputs into functional systemsOwn critical engineering tasks with high standards and attention to detail data pipelines, API integrations, testing, error handling, system integration, and moreParticipate in code reviews, technical discussions, and architecture planningContribute to improving processes for how we build, ship, and deliver features across teamsAbout You5+ years of hands-on software engineering experienceProven ability to execute on incomplete specs and drive projects to completionStrong experience writing production-quality code (Python and Rust strongly preferred)Comfortable building full-stack systems (APIs, data pipelines, microservices, internal tools)High standards for code quality, maintainability, and correctnessComfortable in fast-moving, ambiguous environments where priorities shift quicklyBias for ownership: you see what needs to get done and take responsibility for deliveringExperience supporting ML research or building ML infrastructure is a plusWhat We OfferCompetitive salary and early-stage equity packageA high-trust, execution-first culture with minimal bureaucracyDirect ownership of meaningful projects with real business impactA rare opportunity to sit at the interface between deep research and real-world productisationWe are able to sponsor a Skilled Worker visa for qualified candidates applying to this position. This specific role exceeds the minimum salary threshold set by the UK government for Skilled Worker visa sponsorship. Please note that English language proficiency at B2 level or higher is required for this role.Symbolica is an equal opportunities employer. We celebrate diversity and are committed to creating an inclusive environment for all employees, regardless of race, gender, age, religion, disability, or sexual orientation.Apply for this job

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