Full Stack Engineer

Wintermute

Full Stack Engineer building end-to-end crypto trading products, client portals, and internal applications at Wintermute. Owning backend APIs, market data, and frontend experiences.

Posted 8/18/2026full-timeLondon • 🇬🇧 United KingdomMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in full-stack application development, with strong backend engineering skills in Go and Python, and proficiency in modern frontend frameworks like React.js. Capable of designing secure, high-performance applications while collaborating effectively across product, marketing, and engineering teams.

Highest-signal resume keywords

Full-Stack Application DevelopmentBackend Engineering SkillsGo and Python ProficiencyReact.js or Comparable Framework ExperienceAWS Services Knowledge

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Backend EngineeringFrontend DevelopmentREST/WebSocket API DesignData Model ImplementationJavaScript and TypeScriptNode.js/npm EcosystemSchema DesignSecure Code DevelopmentCross-Site Scripting UnderstandingAsynchronous Request Patterns

Soft Skills

CollaborationProject ManagementUser Experience Focus

Tools & Technologies

AWSCloudflareCI/CDTerraformRelational DatabasesContainersMonitoring and Logging

Industry Keywords

FintechCryptoAlgorithmic TradingClient-Facing Financial Products

Tech Stack

Tools & technologies

AWSCloudEC2GoJavaScriptNode.jsPythonReactTerraformTypeScript

About the role

Key responsibilities & impact

Develop end-to-end applications for new trading products and client-facing portals
Develop internal trading applications
Oversee and project-manage corporate website frontend development
Own features across the full stack
Design and implement backend services and APIs
Model and expose trading and market data
Build frontends on top of backend services and APIs
Create and drive the vision for a platform or portal from scratch
Own user experience across customer lifecycle stages
Collaborate closely with product, marketing, trading, and engineering teams
Improve high-performance scalable applications and understand broader system architecture

Requirements

What you’ll need

5+ years of software development experience across backend and frontend
Strong backend engineering skills
Go and/or Python preferred
Experience designing and implementing services, REST/WebSocket APIs, and data models
Working knowledge of JavaScript and TypeScript
Experience with Node.js/npm ecosystem
Experience with a modern frontend framework, ideally React.js, or a comparable framework
Client-facing financial or professional services product experience preferred but not mandatory
Fintech or crypto domain experience is a plus
Understanding of CDN, Cloudflare or similar, web servers, containers, CI/CD, monitoring, and logging
Hands-on experience with a major cloud provider, AWS preferred
Knowledge of AWS services including EC2/ECS, S3, IAM, VPC networking, and load balancers
Terraform or other infrastructure-as-code experience is a plus
Working knowledge of relational databases and caching
Schema design and writing efficient queries
Experience developing secure code end to end
Understanding of cross-site scripting, cross-site request forgery, OWASP risks, authentication, authorisation, secrets handling, and security testing and mitigation
Understanding of frontend-backend integration, asynchronous request patterns, and streaming real-time data to browsers
Interest in algorithmic trading is a plus

Benefits

Comp & perks

Working at one of the most innovative trading firms globally
Engaging projects offering accelerated responsibilities and ownership
Frequent team meals, holiday celebrations, gaming events, and company-wide outings
Central London office with table tennis, foosball, personalized desk configurations, team breakout area, games, and free food
Informal, non-hierarchical, ambitious, highly professional startup-vibe culture
Performance-based compensation with significant earning potential
Pension
Private Health insurance
Significant flexibility regarding working from home and working hours
UK work permits
Relocation assistance