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SpaceX Super Intelligence

Backend Engineer for Global Payments & AI Platforms

NewBe an early applicant UK

Backend engineer on the X Money team building a global payments network for hundreds of millions of users. Day to day you design backend services, microservices, and data models for scalability, security, and reliability, collaborating across payments, fraud detection, and compliance in a startup-like environment.

AI Microservices

Square One Resources

Senior Java Backend Engineer — IAM & Cloud (Hybrid)

NewBe an early applicant UKSenior

Senior backend engineer building high-scale Java (Spring Boot) services for a regulated financial services environment in Essex, focused on secure IAM (OAuth/Azure) and high-volume transactional workloads using TDD. Hybrid role requiring 4 days per week in the Essex office, with mentoring of junior engineers.

AWS Azure Cloud GCP IAM +4 skills

Python Backend Engineer - Wireshark Automation

NewBe an early applicant UKContract

Python backend developer on a 6-month London contract, turning manual packet capture into a 'Wireshark-as-a-Service' self-service web app. Day to day: automating network sniffing and packet capture with Python, REST APIs and Linux servers, working with Wireshark/TShark and PCAP workflows.

API Automation Linux Python REST +1 skills

Backend Engineer

NewBe an early applicant UK

Backend engineer building the Go services behind Tantilium Cloud Runner — APIs, Kubernetes controllers and event pipelines that provision AWS/GCP clusters, deploy apps via GitOps and run AI agents for incident response. Stack: Go (Chi), PostgreSQL (Bun), RabbitMQ, client-go, Prometheus/Grafana.

Agentic AI AI API Argo CD AWS +22 skills

Searchability NS&D

eDV-Cleared Java Backend Engineer (On-Site Cheltenham)

NewBe an early applicant HybridUKContract

24-month contract for a Java backend developer with eDV (Enhanced DV) clearance, based in Cheltenham with three days per week on-site, designing and maintaining secure Java services for a UK government environment. Core stack is Java, microservices and RESTful APIs in Agile teams; Spring Boot, Docker and Kubernetes are desirable.

Agile API Docker Java Kubernetes +3 skills

up to 700 £ / day

Go Backend Engineer - Cloud Runner & Kubernetes

NewBe an early applicant UK

Build Go backend services for Tantilium Cloud Runner, a platform that provisions Kubernetes clusters and ships applications. You design APIs, controllers, and event pipelines using Chi, Bun on PostgreSQL, RabbitMQ, and Kubernetes client-go, while keeping the system maintainable as it grows.

API Cloud Kubernetes PostgreSQL RabbitMQ

Response Informatics Limited.

Java Full Stack Developer

NewBe an early applicant UKContract

Senior contract role in London for a Java full-stack developer with 8+ years' experience: designing scalable applications with Java, Spring Boot and microservices, applying AI-assisted and Spec-Driven Development, maintaining CI/CD pipelines (Jules), managing GKP/FID setup, and integrating databases such as CockroachDB and MongoDB.

AI CI/CD CockroachDB Java Microservices +2 skills

Senior Java Engineer - Hybrid, Mentoring & Platform Growth

NewBe an early applicant UKSenior

Senior Java Engineer building Love2shop's web and mobile digital platforms using Java/Spring in a payments and loyalty domain. You'll collaborate with Product and Design, mentor colleagues, and support a Salesforce-based transformation and cloud initiatives, working hybrid with weekly on-site days in the Liverpool office.

Cloud Java Salesforce Spring

Searchability NS&D

Senior Full-Stack Java Engineer – Hybrid, Bristol

NewBe an early applicant UKFull-timeSenior

Searchability NS&D is hiring a Senior Full-Stack Java Engineer for a hybrid, permanent role in Bristol. Day to day: designing, building and maintaining scalable applications across the full software lifecycle using Java, TypeScript/JavaScript and React, with CI/CD pipelines on AWS/Azure. Consultancy and government-project experience is a plus.

AWS Azure CI/CD Java JavaScript +2 skills

Cathcart Technology

Hands-On Principal Java Engineer: Lead & Code

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Principal-level Java engineer role in the South Manchester area (hybrid, one onsite day per week) combining hands-on coding with technical leadership. You'll design and deliver Java/Spring Boot solutions, mentor engineers, and drive architectural standards in an Agile/XP environment focused on quality, automation and scalable systems.

Agile Automation Java Spring

LMA Recruitment Limited

Full-Stack Java Engineer (Spring Boot) – Hybrid Glasgow

NewBe an early applicant UKContract

Hybrid contract role in Glasgow building secure, scalable financial services apps: Java/Spring Boot back end with an Angular or React front end, delivering RESTful APIs and microservices alongside DevOps, QA and architecture teams. Initial 6-month contract with a view to permanency.

Angular API DevOps Java Microservices +3 skills

Senior Java Engineer - Platform & Cloud, Hybrid

NewBe an early applicant UKSenior

Senior Java Engineer at Love2shop building and scaling digital web and mobile platforms in a regulated payments environment, mentoring engineers and working with Product, Design, and QA, with cloud work and a move towards Salesforce as part of a major transformation program.

Java Salesforce

Senior Java Developer: Kubernetes, CI/CD & Microservices

NewBe an early applicant UKSenior

TEKsystems in Belfast is hiring a senior Java developer to build and maintain large-scale distributed backend systems, with optional Python/TypeScript work. Core stack is Java, Kubernetes, GitOps, and CI/CD pipelines, plus unit/integration testing and cross-team collaboration.

CI/CD Distributed Systems GitOps Integration Testing Java +4 skills

Searchability NS&D

Contract Java Developer - eDV Cleared

NewBe an early applicant UKContract

24-month contract Java developer role building and maintaining secure backend services and microservices for a UK national security government programme, Cheltenham-based 3 days per week on-site. Requires active Enhanced DV (eDV) clearance; daily rate up to £700 depending on experience.

Agile API AWS Azure CI/CD +8 skills

up to 700 £ / day

Java Developer

NewBe an early applicant UK

TEKsystems is hiring a full-stack Java Developer in Belfast to build and maintain large-scale distributed back-end systems, using Java as the primary language with some Python or TypeScript. The role relies on Kubernetes, GitOps, CI/CD pipelines, feature flagging, A/B testing, and database scaling.

A/B Testing CI/CD Data Modeling Distributed Systems GitOps +7 skills

Square One Resources

Java Developer

NewBe an early applicant HybridUKContract

7-month (extendable) contract Java Developer in Laindon, Essex (4 days/week onsite) building high-scale backend services and secure identity/access management for a regulated financial services client. Core stack: Java, Spring Boot, OAuth/IAM, cloud (GCP/AWS/Azure), with TDD.

AWS Azure Cloud GCP IAM +4 skills

up to 613 £ / day

Senior Python Developer

NewBe an early applicant UKSenior

Senior Python Developer at Hippo, a UK digital consultancy delivering bespoke digital services for public and private sector clients. Acts as a senior consultant leading full-stack Python delivery (HTML/CSS/JS with Node/React/Angular), CI/CD pipelines, Docker/Kubernetes, Terraform and AWS/Azure, while mentoring engineers.

Agile Angular API AWS Azure +22 skills

Senior iOS Engineer — Swift, SwiftUI & VIPER Expert

NewBe an early applicant UKSenior

Senior iOS engineer who designs, develops and maintains high-quality iOS apps using Swift, UIKit and SwiftUI with MVVM/VIPER architectures. Day to day involves integrating REST APIs, optimizing performance, and deploying releases via App Store Connect while collaborating with design, backend, QA and product teams.

API iOS MVVM REST Swift +2 skills

Lead Full Stack Kotlin Developer

NewBe an early applicant UKLead

Hippo, a UK digital consultancy, is hiring a Lead Full Stack Kotlin Developer in Leeds to act as a lead consultant, guiding squads delivering bespoke digital services for public and private sector clients. Day to day: hands-on Kotlin/Spring Boot back-ends, Angular/React front-ends, cloud/DevOps pipelines, and mentoring engineers.

Agile Angular API AWS Azure +23 skills

Project Freelance

iOS Developer

NewBe an early applicant HybridUK

CGI is hiring iOS Developers for its mobile engineering team in Glasgow (hybrid: 1 day/week on-site if local, 1 day/month otherwise). The role involves building high-quality, scalable iOS applications in a collaborative Agile environment alongside designers, engineers, and product specialists.