Mars Logo

Mars

Senior Lead - AI Engineering

Posted 17 Days Ago
Be an Early Applicant
In-Office
Slough, Berkshire, England, GBR
Senior level
In-Office
Slough, Berkshire, England, GBR
Senior level
Leads the design and delivery of secure, scalable, LLM-enabled applications spanning APIs, user interfaces, orchestration pipelines, vector databases, and enterprise integrations. Builds reusable AI tooling, SDKs, and governance processes; deploys solutions across cloud environments; ensures observability, operational excellence, and responsible AI compliance. Partners with business stakeholders, architects, security teams, and strategic vendors to prioritize high-value use cases, guide platform strategy, and deliver production-ready systems.
The summary above was generated by AI

Job Description:

Job Purpose/Overview

Mars Segments and Functions are raising the bar, AI must deliver business value not just promise potential. That means taking cutting-edge LLM capabilities and turning them into resilient, secure,

and scalable agentic software. As a systems-minded, AI-native engineer, the candidate will own the full stack—APIs, intuitive UIs, and scalable orchestration pipelines. Embedded deeply with the business teams, the candidate will diagnose the root problems, and architect AI-powered workflows that run at scale. The candidate will partner with business stakeholders to design, implement, and deliver solution-ready builds in agile sprints. The product becomes the reference implementation for scalable GenAI in the enterprise by codifying patterns, internal tooling, and delivering systems that are tested and scalable.

Key Responsibilities

  • Build solution-ready, LLM-enabled applications that span backend logic, data orchestration, and front-end UI.

  • Adopt responsible AI practices and principles and deploy compliant solutions with the right RBAC policies and access management.

  • Work with business stakeholders to adapt, deploy, and iterate in live environments.

  • Codify reusable asset that includes libraries, prompts, scaffold to accelerate futureengagements.

  • Effectively engineer APIs, orchestration pipelines, vector DBs, LLM frameworks, UI components.

  • Integrate with legacy systems, navigate ambiguity, and deploy at pace.

  • Codify patterns - build scaffolds, SDKs, and documentation to scale across Mars Segments.

  • Inform product strategy through tested insights and extensible code.

  • Engage, negotiate and influence internal stakeholders to establish priorities in line with thehighest business impact.

  • Shape internal tooling and integrate into platform roadmap and primitives.

  • Provide Engineering leadership and win trust of architects, PMs, and business stakeholders

  • Ensures the key handoffs and interdependencies, 3rd party firms and business stakeholders to ensure successful value delivery, and ability to scale.

  • Define solutions for Mars business processes with clear articulation of business case and ROI.

  • Identify the capability gaps that are hindering progress and propose solutions to address them.

  • Responsible for operational excellence and service management across business segments, services and capabilities.

  • Responsible for deploying environments and assigning digital workers in all stages of the automation development lifecycle.

  • Manage capacity and utilization of servers, users, and credentials to ensure no delays for any automation projects.

  • Design, maintain and oversee governance and control processes in collaboration with Security, Controls, Enterprise Architecture, and Identity teams.

  • Training, support and consultation for partners, federated users, and key stakeholders

Job Specifications/Qualifications

  • Experience in integrating AI into work processes and use case problem-solving. This may include using AI-powered tools, automating workflows, analysing AI-driven insights, or exploring AI’s potential impact on the function or business segment

  • Relevant Experience: 10+ years of software engineering, including 3+ years building systems in customer-facing or embedded roles.

  • System architecture: Proven ability to design and implement AI-native software in production environments.

  • Engineering depth: Strength in backend (Python, Node.js, Java), frontend (React, Angular), APIs (REST/GraphQL).

  • LLM tooling: Familiarity with LangChain, Semantic Kernel, prompt chaining, vector search, and context management.

  • Performance & observability: Skilled in debugging distributed systems, tuning for latency, and implementing monitoring.

  • Platform mindset: Can contribute to shared SDKs and tools, raising engineering velocity for the whole org.

  • Product sensibility: Prioritize for user value, MVP iteration, and long-term scale.

  • DevOps fluency: Experience deploying in Azure, or GCP with CI/CD, containers, and infra-as-code.

  • Ability to manage the coordination and governance of 3rd party strategic partner talent

  • networks.

What can you expect from Mars?

  • Work with diverse and talented Associates, all guided by the Five Principles.

  • Join a purpose driven company, where we’re striving to build the world we want tomorrow, today.

  • A strong focus on learning and development support from day one, including access to our in-house Mars University.

  • An industry competitive salary and benefits package, including company bonus.

#TBdigital

Similar Jobs

4 Days Ago
Hybrid
London, England, GBR
Senior level
Senior level
eCommerce • Retail
Leads and grows ASOS’s AI engineering team, setting technical direction and engineering standards while remaining hands-on. Designs, builds, deploys, and supports production agentic AI and automation solutions integrated with finance and commercial systems. Owns delivery, operational readiness, monitoring, incident response, stakeholder engagement, and benefits tracking. Requires experience with agent frameworks, LLMs, automation, cloud deployment, software or data engineering, and engineering leadership.
Top Skills: APIsAutogenAzure Ai FoundryAzure DevopsAzure OpenaiC#/.NetCi/CdConcurCrewaiDatabricksItilLangchainLanggraphLogic AppsAzureMicrosoft Copilot StudioMicrosoft Dynamics 365 Finance And OperationsMicrosoft FabricModel Context Protocol (Mcp)Power PlatformPythonReconartRpaSemantic KernelServicenowSQL
One Month Ago
Hybrid
London, Greater London, England, GBR
Senior level
Senior level
Financial Services
Lead design and delivery of high-performance, real-time data pipelines and analytics for trading. Drive AI-enabled data engineering, mentor engineers, manage global initiatives, and improve SDLC, testing, and operational reliability.
Top Skills: AIAWSC++Ci/CdFixGenerative AiKdb/QKubernetesMachine LearningMarket DataOmsPythonTerraform
One Month Ago
Hybrid
London, Greater London, England, GBR
Senior level
Senior level
Greentech • Social Impact • Consulting • Financial Services
Design, build, and ship production-grade LLM-powered features (RAG, extraction, summarisation, agentic tooling). Build data and inference pipelines, integrate with back-ends and vector stores, ensure evaluation, monitoring, cost and performance optimisations, and champion testing and reliability alongside product and tech leads.
Top Skills: AnthropicCi/CdCloud RunDjangoDockerEmbeddingsFastapiFlaskGCPGeminiGoogle WorkspaceKubernetesLangchainLlamaindexMlopsNext.JsOpenaiPgvectorPostgresPub/SubPythonRagReactSalesforceVector DbVertex Ai

What you need to know about the London Tech Scene

London isn't just a hub for established businesses; it's also a nursery for innovation. Boasting one of the most recognized fintech ecosystems in Europe, attracting billions in investments each year, London's success has made it a go-to destination for startups looking to make their mark. Top U.K. companies like Hoptin, Moneybox and Marshmallow have already made the city their base — yet fintech is just the beginning. From healthtech to renewable energy to cybersecurity and beyond, the city's startups are breaking new ground across a range of industries.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account