Full Stack Developer

Umain

. Define structured requirements by identifying actors, use cases, and features .

Posted 10/20/2026full-timeLondon • United KingdomMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in full stack development with a focus on TypeScript, React, and Node.js, while effectively translating client needs into structured requirements and specifications. Capable of coordinating multiple agents and ensuring the delivery of trustworthy outputs through rigorous testing and evaluation processes.

Highest-signal resume keywords

Full Stack DevelopmentTypeScriptReact/Next.jsNode.jsRequirement Definition

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Full Stack DevelopmentTypeScriptReactNext.jsNode.jsNestJSRequirement DefinitionModel Performance MeasurementUI Component CreationProduction Software Delivery

Soft Skills

Client CollaborationCuriosityComfort with AmbiguityEngineering Judgment

Tools & Technologies

GCPAWSAzureTerraformCI/CD PipelinesMCP ServersObservability ToolingDesign SystemsStorybookTailwind CSS

Industry Keywords

Agentic FeaturesMulti-Agent WorkflowsOpen-Weight ModelsLLM EvaluationSpec-Driven Development

Tech Stack

Tools & technologies

AWSAzureGoogle Cloud PlatformJavaScriptNext.jsNode.jsReactTerraformTypeScript

About the role

Key responsibilities & impact

Define structured requirements by identifying actors, use cases, and features
Translate client needs into specs with scope, acceptance criteria, interfaces, and constraints
Keep specifications, tests, and code aligned as products evolve
Break work into independently verifiable units for agents
Run and coordinate parallel agents, subagents, and specialized roles
Build and maintain MCP servers, agent skills, prompts, context files, and isolated workspaces
Design testing, evaluation, guardrails, and human review processes for trustworthy agent output
Select and combine frontier and open-weight models based on capability, cost, latency, and data sensitivity
Measure model performance and adjust model mixes based on evidence
Build secure, scalable web applications with TypeScript, React, and Next.js
Build backend services and APIs with Node.js and NestJS
Create reusable UI components using design system principles
Work with GCP, AWS or Azure, Terraform, and CI/CD pipelines
Build observable systems with metrics, logging, and tracing, including LLM and agent behavior in production
Work directly with clients and cross-functional teams across design, product, and data
Explain agentic delivery, trade-offs, and limitations to technical and non-technical audiences
Share effective practices, pair with colleagues, document patterns, and raise the agentic practice across Eidra UK

Requirements

What you’ll need

3+ years of professional full stack experience
Strong TypeScript, React/Next.js, Node.js, and core web fundamentals
Hands-on experience delivering production software with coding agents such as Claude Code, Codex, Cursor, or similar, beyond autocomplete
Strong requirement definition experience, from actors to use cases to feature definitions with clear acceptance criteria
Working spec-driven development practice
Experience running multiple agents in parallel and coordinating their output
Practical experience using both frontier and open-weight models
Strong engineering judgment and ability to critically review agent output
Comfort with ambiguity and consulting-oriented client collaboration
Curiosity and willingness to keep up with rapidly changing tools
Nice to have: agentic features, tool calling, RAG, MCP servers, multi-agent workflows, open-weight models in production, LLM evaluation and observability tooling, open-source contributions or published writing, Tailwind CSS, Storybook, design systems, and consultancy or agency experience

Benefits

Comp & perks

Remote work when it suits the team or client
Opportunity to work with an AI-first software delivery approach
Collaboration with design, product, and data professionals
Pairing, documentation, and opportunities to help shape agentic engineering practices
Work on large-scale digital products and client projects