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Senior Python & AI Backend Developer - Milan

NewBe an early applicant EuropeContractSenior

Freelance senior Python backend developer for an AI project in the Milan area: building backend services with FastAPI, agentic multi-turn RAG architectures using LlamaIndex and Gemini, and a PostgreSQL (pgvector/FTS) + Redis data layer. Hybrid, with 2 days/week on-site in Segrate, engaged through the Shakers talent marketplace.

Agentic AI AI FastAPI LlamaIndex pgvector +4 skills

Founding Python Backend Engineer for AI/API

NewBe an early applicant HybridUK

A founding engineer at a fast-growing UK startup building AI-powered software: you own major backend services (Python/FastAPI), contribute to frontend work in TypeScript, and help shape technical direction with the founders. Hybrid setup across London and Cambridge, with equity on offer.

AI FastAPI Python TypeScript

Rise Technical Recruitment Limited

Backend PHP/Vue Developer – Hybrid, High Ownership

NewBe an early applicant HybridUK

A full-stack developer role in Bristol (hybrid, one day per week in the office) building internal systems for operations, reporting and a B2B portal. Day to day combines a solid PHP backend (Symfony or Laravel) with a modern JavaScript frontend (Vue or React), plus PostgreSQL, Docker and AWS.

AWS Docker JavaScript Laravel PHP +4 skills

Square One Resources

AI-Driven Backend Engineer (Java) - Onsite Leeds Tue/Thu

NewBe an early applicant UK

An AI-assisted backend developer role at Square One Resources in Leeds: designing, building, and evolving products from concept to production with a strong focus on backend engineering and APIs. Day to day involves hands-on Java coding, architectural decisions, mentoring colleagues, and embracing AI-assisted development.

Senior Backend Engineer - AI Security & Scale

NewBe an early applicant UKSenior

LinuxRecruit is hiring a Senior Backend Engineer for its new AI-focused engineering hub in London to build scalable backend services, high-volume data systems, and cloud-native, security-focused products, working alongside machine learning researchers and security experts.

AI Cloud Cloud Native Machine Learning

OLR Holdings Ltd trading as DFYNE

Senior Backend Engineer: Scale & Improve Production Systems

NewBe an early applicant UKSenior

DFYNE (a UK activewear brand) is hiring a Senior Backend Engineer in Uddingston to own and strengthen the backend platforms behind its product ecosystem, focusing on reliability, performance, and scalable design. Day to day the role involves hands-on engineering, mentoring staff, improving observability, and setting technical standards.

Randstad Technologies Recruitment

Backend Engineer (Java/Spring) - Cloud Microservices

NewBe an early applicant UKContract

6-month contract backend role in Manchester building cloud-native Java/Spring microservices for a travel and attractions ecosystem — integrating global third-party providers and owning distributed, event-driven data flows with a focus on fault tolerance, tracing and automated testing.

API Cloud Cloud Native Distributed Systems Event Driven Architecture +2 skills

Rise Technical Recruitment Limited

Hybrid PHP & JS Backend Engineer – Own Core Systems

NewBe an early applicant HybridUK

A backend-focused software engineer in Bristol (hybrid, ~1 office day/week) builds and evolves internal systems powering operations, analytics, and a B2B portal, working primarily in PHP (Symfony/Laravel) with some JavaScript (Vue/React) frontend work alongside the Head of Development.

Analytics JavaScript Laravel PHP React +2 skills

Senior Backend Engineer (C# / Python) with AI - Hybrid

NewBe an early applicant HybridUKSenior

Senior backend engineer building cloud-native systems for an insurance product portfolio used by international businesses, working mainly in C# and/or Python in a small, agile London team. The role contributes to AI-enabled engineering productivity and architecture, hybrid: three days in City offices, two remote.

Agile AI Cloud Cloud Native C# +1 skills

Computerworld Personnel Ltd

Senior Backend Engineer - Java/C++ (SC, Gloucester)

NewBe an early applicant UKSenior

A senior backend developer role in Gloucester building scalable Java and C++ backend services and APIs in a secure, Linux-based Agile environment. The engineer shapes software architecture, ensures secure reliable solutions, and mentors colleagues on an experienced engineering team.

Agile API C++ Java Linux

Real-Time Graph DB Backend Engineer - Azure & API

NewBe an early applicant UK

UST Global is hiring a backend-focused full-stack engineer in Leeds to design and evolve its Global Data Network platform, building cloud-native, API-driven backend services with real-time data processing and graph-based data modelling, plus cloud infrastructure and some UI work on Azure.

API Cloud Cloud Native Data Modeling

Senior Backend Engineer - Cloud SaaS at Scale

NewBe an early applicant UKSenior

Senior backend engineer on LinuxRecruit's newly formed London team, building and operating scalable, production-grade cloud-native SaaS applications. Work spans data processing, APIs and customer-facing functionality, with end-to-end ownership from design and coding through deployment and operation at scale.

API Cloud Cloud Native SaaS

Backend Engineer - FinTech (Django/AWS, EU Platform)

NewBe an early applicant UK

Backend engineer designing, building and maintaining Python/Django APIs and backend systems on a European fintech platform (HomeServe Finance), owning solutions from design through deployment. Hybrid role based in the London office, working with PostgreSQL and AWS in a regulated environment.

API AWS Django PostgreSQL Python

Backend Engineer - AWS, TypeScript & Serverless

NewBe an early applicant UK

Design, build and maintain backend services and APIs in TypeScript within a serverless, cloud-native environment, using AWS Lambda and other AWS services to deliver scalable, secure digital services for high-impact public sector projects, while contributing to CI/CD, testing and architecture.

API AWS CI/CD Cloud Cloud Native +3 skills

Backend Engineer - TypeScript, AWS & Serverless

NewBe an early applicant UK

Backend engineer building and maintaining services with serverless architecture on AWS — developing secure APIs and working in an agile cross-disciplinary team. Core stack: TypeScript, AWS/AWS Lambda, RESTful APIs, Git and testing practices, for a UK-based IT services company.

API AWS Git Lambda REST +2 skills

Backend Engineer

NewBe an early applicant UKMiddle

Junior-to-mid-level engineer joining Radius's web team to build and maintain web applications and scalable backend APIs using Next.js, React, and Laravel (PHP), writing testable code with TDD in a collaborative Agile team based at the company's Crewe HQ.

Agile API CI/CD CSS Git +8 skills

Backend Engineer: Next.js and Laravel, TDD Driven

NewBe an early applicant UKMiddle

Junior to mid-level backend engineers join a collaborative web team (Radius Campus HQ in Crewe) building dynamic web platforms and scalable backend APIs with Next.js and Laravel. Day-to-day emphasizes TDD, clean code, and modern workflows using MySQL, Git, REST APIs, and CI/CD, partnering with designers and developers in sprints.

API CI/CD Git Laravel MySQL +3 skills

Senior Backend Engineer - Java/C++ with SC Clearance

NewBe an early applicant UKSenior

Sanderson is hiring a Senior Backend Engineer in Gloucester to build high-performance backend systems in Java and C++, working with microservices and scalable architectures on Linux, while mentoring engineers and contributing to CI/CD and DevSecOps initiatives. SC clearance is required.

CI/CD C++ DevSecOps Java Linux +1 skills

OLR Holdings Ltd trading as DFYNE

Senior Backend Engineer

NewBe an early applicant UKSenior

A hands-on senior backend engineer at DFYNE (a UK activewear brand) who owns critical production backend services and APIs, improving their reliability, scalability and maintainability while supporting architecture, incident response and mentoring. Core stack: TypeScript or Python, relational databases and Google Cloud Platform.

API Api Design Cloud Distributed Systems E-commerce +9 skills

Staff Backend Engineer: Scale High-Throughput Services

NewBe an early applicant UKStaff

Staff backend engineer on EFG (ESL FACEIT Group)'s Central Platform Team, designing and maintaining high-throughput services and owning core runtime systems such as the Envoy gateway and Kubernetes-based services. The role drives end-to-end projects, shapes architecture, and mentors other engineers.

Envoy Kubernetes