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Capgemini

Global consulting, technology services, outsourcing

GenAI Full Stack Engineer – Consultant / Senior Consultant - Digital Excellence

Full-TimeUpdated on 10/21/2026
No salary listed
Mid
London, UK+3 moreMore locations: Bristol, UK | Newcastle upon Tyne, UK | Manchester, UK
HybridHybrid working is described; assignment locations may require periods away from home at short notice.
Software EngineeringAI Application Engineering, Full-Stack Engineering

About the job

Requirements
  • Hold active Security Check (SC) clearance or be eligible to obtain it.
  • Have experience building microservices with Python and FastAPI, TypeScript and Express, or an equivalent framework.
  • Have experience building React applications using TypeScript and frameworks such as Next.js or Vite.
  • Have familiarity with generative AI frameworks such as LangChain, LangGraph, CrewAI, or Vercel AI in Python or JavaScript.
  • Have practical experience with large language models such as OpenAI, Anthropic, Mistral, or Llama, and tools such as Ollama.
  • Be proficient with AWS or Azure for hosting and deployment.
  • Have hands-on experience with Docker, Kubernetes, and Docker Compose.
  • Have exposure to Terraform or similar infrastructure-as-code tools.
  • Have familiarity with language-model monitoring tools such as LangSmith or Langfuse.
  • Have experience with continuous integration and deployment tools such as GitLab, GitHub, or Jenkins.
  • Have experience with vector databases such as ChromaDB, Pinecone, PGVector, MongoDB, or Qdrant.
  • Have familiarity with NoSQL databases; MongoDB is preferred.
  • Have experience working with SQL databases such as PostgreSQL.
  • Be proficient with Git and version-control platforms such as GitHub or GitLab.
  • Have experience working in an agile team environment.
  • Be able to communicate effectively with internal and external stakeholders, adapting communication to the audience and context.
  • Be fully flexible regarding assignment location, as assignments may involve periods away from home at short notice.
Responsibilities
  • Collaborate with the team to develop client proof-of-concepts using retrieval-augmented generation and intelligent agents.
  • Scale existing proof-of-concepts into production-ready solutions for customer use.
  • Design and develop full-stack applications for generative AI and non-generative AI projects.
  • Support the development of infrastructure for robust end-to-end solutions.
  • Explore and experiment with emerging technologies, including generative AI.
  • Coach and mentor team members to foster skill development.
  • Lead or contribute to proposals, requests for proposals, bids, and client pitches.
  • Develop innovative propositions and participate in client-hosting events.
  • Engage in campaign development, internal think tanks, and whitepapers.
  • Contribute to practice operations, recruitment, and team-building activities.
  • Help shape the organization’s offerings and capabilities.
Desired Qualifications
  • Familiarity with MongoDB is preferred.

About the company

Capgemini helps organizations in consulting, technology services, and outsourcing to drive digital transformation. Its offerings include strategy and transformation consulting; system integration, application development, and IT infrastructure management; and managed IT operations and business processes. It competes through a global footprint in over 50 countries with a local touch, applying AI, cloud, and cybersecurity to real-world problems. Its goal is to help clients achieve strategic objectives and improve efficiency through technology.

Company Size

10,001+

Company Stage

IPO

Headquarters

Paris, France

Founded

1967

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Simplify's Take

What believers are saying

  • H1 2026 revenue reached €12.082 billion, up 8.8%, and guidance rose to 8.5%-9.0%.
  • HMRC’s June 2026 contract adds multi-year public-sector revenue and validates Capgemini’s sovereign-cloud pitch.
  • Generative and agentic AI exceeded 10% of Q4 2025 bookings, signaling durable demand momentum.

What critics are saying

  • Fit-for-Growth triggered about €700 million restructuring costs across 2026-2027, mostly in 2026.
  • June 30, 2026 filings cite recurring India transfer-pricing tax reassessments and active litigation.
  • AI services commoditize legacy consulting; WNS integration and workforce cuts threaten margin expansion by 2027.

What makes Capgemini unique

  • Capgemini’s October 2025 WNS acquisition created scaled Intelligent Operations and agentic AI delivery.
  • The June 2026 HMRC deal extends a 2004 relationship and embeds Capgemini in UK tax systems.
  • Capgemini’s September 2026 OpenAI Deployment Company investment deepens enterprise AI implementation access.

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Benefits

  • Health Insurance
  • Paid Vacation
  • Flexible Work Hours
  • Remote Work Options
  • Professional Development Budget
  • Meal Benefits
  • Dental Insurance
  • Life Insurance
  • Performance Bonus
  • Hybrid Work Options

Growth & Insights and Company News

Headcount

6 month growth

5%

1 year growth

5%

2 year growth

5%
InfraSale
Sep 25th, 2026
Capgemini Expands Seattle Presence with Acquisition of Collinear Group

Capgemini has acquired Collinear Group, enhancing its consulting capabilities in the Seattle area. This move signifies a strategic expansion into the growing data center and technology consulting market, which is crucial for InfraSale's audience focused on infrastructure development. Observers should watch for how this acquisition impacts local data center projects and consulting services.

Associated Press
Sep 10th, 2026
42% of consumers confused by life insurance policies, 1 in 4 abandon purchase

Life insurers face a relevance crisis, according to the World Life Insurance Report 2027 from Capgemini and LIMRA. The study surveyed over 6,100 consumers globally and found that whilst 47% consider buying life insurance, more than 40% feel confused or unconvinced by available information. One in four abandon the purchase process. Younger consumers aged 18-40 are particularly affected, with 28% dropping out before completion. Technical language, affordability concerns, and perceived irrelevance drive these exits. The report reveals nearly 40% of policyholders rarely hear from insurers post-purchase, and half who discontinue do so within three years. However, best-in-class insurers—representing just 10% of carriers—achieved 41% higher revenue growth and 12% lower lapse rates through personalised engagement and data-driven strategies.

The Register
Aug 20th, 2026
HMRC awards Capgemini $47M SAP migration contract, extending 28-year relationship

The UK's HM Revenue & Customs has awarded Capgemini a £37 million contract to migrate its Enterprise Tax Management Platform from SAP ECC 6.0 to S/4HANA. The contract runs until 2032, potentially extending Capgemini's involvement with HMRC's tax systems to 28 years since the relationship began in 2004. The platform handles more than £800 billion in tax revenue and payments annually for 40,000 users. HMRC insisted the procurement was fair and competitive, with several bidders competing from the Digital Legacy Application Services framework. Capgemini became HMRC's lead technology supplier in 2004 under the Aspire contract. A 2014 parliamentary committee found that Aspire cost £7.9 billion between 2004 and 2014, generating £1.2 billion in combined profit for Capgemini and Fujitsu.

Yahoo Finance
Jul 30th, 2026
Capgemini H1 net profit drops 31% to $538M despite 8.8% revenue rise and raised FY outlook

French technology company Capgemini reported a 31% drop in net profit to €498 million in the first half of the year, down from €724 million in the same period last year, due to higher expenses. Normalised earnings per share fell 12% to €5.29. Revenue climbed 8.8% to €12.08 billion from €11.11 billion. The company's operating margin rose 9.3% to €1.51 billion. Net other operating income and expenses increased to €628 million from €401 million in the prior-year period. Capgemini raised its fiscal 2026 revenue growth outlook to around 8.5% to 9.0% at constant exchange rates, up from its earlier forecast of 6.5% to 8.5%.

Yahoo Finance
Jul 30th, 2026
Capgemini raises 2026 revenue growth target to 8.5-9% after strong H1 performance

Capgemini has upgraded its 2026 revenue growth outlook following strong first-half performance. The French IT services firm now expects constant currency revenue growth of around 8.5% to 9.0%, up from its previous target of 6.5% to 8.5%. The company reported revenues of €12.1 billion in the first half of 2026, up 8.8% year-on-year, with constant currency growth of 11.3%. Operating margin reached 12.5% of revenues, up 10 basis points year-on-year. Chief executive Aiman Ezzat attributed the performance to strong demand for AI-driven transformation services, particularly agentic AI and physical AI solutions. The company's newly integrated Intelligent Business Operations business line, following the WNS acquisition, is generating significant commercial traction. Capgemini maintained its operating margin target of 13.6% to 13.8% and organic free cash flow guidance of €1.8 billion to €1.9 billion for the full year.