Senior Developer

Sentinel

Full-time greater london, England IT & Technology

Posted:

February 18, 2026

Location:

greater london, England, United-Kingdom

Job Description

International enterprise OSS/BSS solutions provider is currently seeking an experienced Senior Developer with extensive Java, Spring Boot and Microservices, REST API's experience. 
Candidates should have a minimum of 8–12 years of experience in software design and development using Java-based technologies and at least 3–5 years of experience in technical leadership or senior developer roles. 
Key Requirements:  
Strong hands-on experience with Java and Spring Boot 
Experienceservices, REST APIs, and containerisation technologies (Kubernetes or OpenShift) 
Solid RDBMS experience 
Experience working on large-scale, high-transaction Enterprise systems 
Ideally, experience in telecom BSS/OSS, Billing, CRM, Self-Service, Product Catalogue, or similar enterprise domains 
Technical leadership or mentoring experience is a plus 
Comfortable working in Agile/Scrum environments 
Candidates...
                

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Job Overview

Job Type: Full-time

Location: greater london, United-Kingdom

Posted: February 18, 2026

Deadline: March 30, 2026