Third Nexus Group Limited

Third Nexus Group Limited

London

Senior Java Architect

Full-Time£100,000 - 120,000 per year3 gün önceUnited Kingdom
IT

Job Description

Salary: £100,000 - 120,000 per year

Requirements:
  • 15+ years of software engineering experience.
  • 8+ years in Solution Architecture, Enterprise Architecture, or Principal Engineering roles.
  • Proven experience delivering enterprise-scale Banking and Payment solutions.
  • Expert-level knowledge of Java, Spring Boot, Spring Cloud, and Microservices.
  • Deep expertise in Messaging Hub architecture.
  • Strong experience with Kafka, NATS, and event streaming platforms.
  • Expert understanding of integration patterns, enterprise integration architecture, messaging patterns, API architecture, and event-driven architecture.
  • Strong expertise in Oracle and PostgreSQL.
  • Experience with data modelling, performance tuning, HA/DR architecture, and transaction-heavy systems.
  • Exceptional stakeholder management and executive communication skills.
  • Ability to influence senior leadership and engineering organizations.
  • Strong architectural documentation and presentation capabilities.
  • Experience leading globally distributed teams.
  • Strategic thinker with a hands-on engineering mindset.
  • Banking or Financial Services industry background preferred.
  • Experience with large-scale modernization and transformation programs preferred.
  • TOGAF, Kubernetes, Cloud, or Architecture certifications preferred.
  • Experience building AI-enabled engineering organizations preferred.
  • Exposure to GenAI and Enterprise LLM integration patterns preferred.
Responsibilities:
  • Lead the architecture, design, and delivery of next-generation Banking and Payment platforms.
  • Define enterprise architecture and drive engineering excellence.
  • Lead large backend engineering teams.
  • Leverage AI-powered development practices to accelerate software delivery and innovation.
  • Support enterprise-scale architecture across banking, payments, messaging, integration, cloud-native engineering, and AI-driven delivery.
Technologies:
  • AI
  • API
  • Architect
  • Backend
  • Cloud
  • Support
  • Java
  • Kafka
  • Kubernetes
  • LLM
  • NATS
  • Oracle
  • PostgreSQL
  • Spring
  • Spring Boot
  • TOGAF
  • microservices

More:

We are hiring a Senior Java Engineering Architect for a contract or permanent role based in London, with four days a week in the office and one day from home. We offer a rate of £120K per annum or £500 per day inside IR35. We are looking for a highly experienced technology leader to help shape next-generation banking and payment platforms, work with globally distributed teams, and contribute to AI-driven engineering innovation.

last updated 34 week of 2026

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About Third Nexus Group Limited

Third Nexus Group Limited

Third Nexus Group Limited

London

IT

Skills & Technologies

JavaSpringKubernetesPostgreSQLKafkaAILLMUI

Inferred from job description

Salary Insight

£110,000

This role

£75,000

UK median

This salary is 47% above the UK median for Senior roles75,000/yr).

Based on 2024–2025 UK technology sector benchmarks

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