Contract Senior Web Services Engineer3-6 Month ContractHourly Rate in USD – NegotiableFully Remote – Open to candidates worldwideWe are seeking a

Senior Web Services Engineer

to join on a contract basis, working remotely with a globally distributed team. This role is ideal for someone who thrives in ambiguity, enjoys problem-solving, and can design scalable, high-performing systems that integrate legacy platforms with modern web services.Key Responsibilities

Design and implement

scalable database schemas and API interfaces

to support large-scale user-generated content with a focus on security, performance, and developer experience.Architect clean, performant

RESTful APIs, GraphQL solutions, and AI-powered features

integrating platforms such as Stripe, Shopify, Salesforce, and OpenAI.Build and integrate

Customer Data Platforms (CDPs)

and

AI/ML capabilities

(semantic search, RAG, vector embeddings, prompt engineering).Drive end-to-end project delivery – from scoping requirements to hands-on development in

Python, Node.js, Go

(with some PHP).Troubleshoot third-party integrations, resolve performance bottlenecks, and develop automated tests.Collaborate with cross-functional teams across multiple time zones, translating complex business requirements into clear, actionable solutions.Skills and Experience

5+ years’ backend API development experience

with Python/Django, Node.js/NestJS, or Golang/Gin.Proven experience building APIs for

enterprise-grade apps

with complex integrations.Strong skills in

system design and SQL data modeling

for high-traffic applications (10k+ daily users).Hands-on experience with

LLM/AI features

(semantic search, vector DBs, RAG, prompt engineering).Comfortable working in fast-paced, agile environments and collaborating with global teams.Excellent communication skills with the ability to explain technical trade-offs to non-technical stakeholders.Rates depend on experience and client requirementsJob Information

Job Reference: JO-2509-356235Salary: HourlyJob Start Date: ASAPJob Industries: Software EngineeringJob Locations: Greater LondonJob Types: Contract

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