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Temporary/Casual
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Application Developer (Agentic Tooling)

GCSLondon🇬🇧United KingdomPosted 3 Sept 2026

Quick Overview

Seniority
Mid Senior
Employment type
Temporary/Casual
Work mode
Hybrid
Location
London, United Kingdom
AWS

Job Description

Role Description

  • This role is for a strong hands-on AWS app developer software engineer who can help design and implement controls, tooling, and engineering practices.
  • The focus is on enabling engineers to use AWS core platform services and technologies safely and effectively through the right mix of internal consulting and activation.
  • Assessing team maturity and needs through outreach and supporting the engineering principals needed to migrate app workloads to the new platform
  • Pairing with teams and hands on coaching/doing

Key Responsibilities

  • Investigate current patterns for enterprise use of AWS applications and tooling
  • Design and implement practical guardrails, controls, and engineering patterns for AWS application development
  • Contribute to definition of path to platform, support team adoption and application migration
  • Help define how teams should comprehend the platform capability
  • Explore changes to the development practices to drive adoption
  • Run research, proof-of-concept work, and technical alignment with teams
  • Work across engineering, platform, security, and adjacent enterprise teams to drive uptake and adoption
  • Help shape scalable practices and AWS maturity among teams

Required Experience:

  • Strong hands-on background as a AWS application development software engineering:
  • Strong technical understanding of the AWS ecosystem with a detailed understanding of developer tooling and capabilities and technologies.
  • Experience working step functions and applications in complex enterprise domains.
  • Ability to work in ambiguous problem spaces and turn research or experimentation into practical implementation
  • Strong communication skills and the ability to work across technical disciplines and stakeholder groups
  • Curiosity, sound engineering judgement, and comfort operating across discipline boundaries
  • The ability to act as an internal consultant, overcome resistance and misalignment to drive platform adoption.

Desirable Experience

  • Experience with enterprise adoption of AI-assisted development tools
  • Familiarity with secure developer environments, enterprise guardrails, or policy enforcement
  • Experience with containerised development environments or remote/offloaded development models
  • Exposure to telemetry, usage analytics, or engineering reporting pipelines
  • Experience in regulated or control-heavy enterprise environments
  • Some data engineering or analytics capability, particularly where reporting and insight generation are part of the role

GCS is acting as an Employment Business in relation to this vacancy.

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