Senior java developer Work, Jobs in Croydon (with Salaries)

Backend Developer (SC Eligible/ Cleared)
Scrumconnect Consulting —London
- £55,000 - £65,000 a year
- Computer Science
- Master's degree
- Bachelor's degree
7d
Senior Payments Engineer
SwiftXccess —London
- Remote
- Databases
- Mentoring
- Agile
Sr Software Engineer I
American Express —London
- Full-time
- Computer Science
- Engineering
- Bachelor's degree
- Life insurance
1d
Senior Software Developer
Echobox —London
- Full-time
- Computer Science
- Software troubleshooting
- Engineering
- Annual leave
11d
Senior Backend Software Engineer - Infrastructure
Palantir Technologies —London
- Full-time
- Java
- APIs
- In-person
- Work from home
Synthetics Lead Developer
Barclays —London
- Mentoring
- Software development
Python Developer
London Stock Exchange Group —London
- Full-time
- Java
- C++
- Communication skills
Senior Software Engineer
Zuora —London
- AWS
- Mentoring
- AI
- Annual leave
Sr Software Engineer
Wellington Management —London
- Full-time
- Computer Science
- AWS
- Bachelor's degree
Dev Ops - Java/Python - London
Photon —London
- Full-time
- Computer Science
- Java
- Analysis skills
Solar Web UI Developer
Standard Chartered —London
- English
- Communication skills
- Annual leave
- Employee assistance programme
8d
Senior Python Developer
TreasurySpring —London
- Full-time
- Hybrid work
- Bachelor's degree
- No degree
- Mentoring
- Annual leave
- Employee assistance programme
Quick apply
UK Development Team Lead
Reset Health —London
- £65,000 - £75,000 a year
- Full-time
- Hybrid work
- Computer Science
- English
- Databases
Quick apply
7d
Low Latency Developer
Barclays —London
- Mentoring
- Software development
- Communication skills
7h
Senior Software Engineer - Regulatory News
London Stock Exchange Group —London
- Full-time
- English
- AWS
- Software development
Senior Software Engineer - Advisory Suite
Alpaca —London
- Remote
- Databases
Quick apply
Senior Backend Engineer
Teya —London
- Full-time
- Computer Science
- Software troubleshooting
- Engineering
- Annual leave
- Flexible schedule
Senior ETRM Application Developer
Castleton Commodities International —London
- Full-time
- Oracle
- AWS
- Bachelor's degree
- Annual leave
- Employee discount
Senior Blockchain Engineer - Digital Assets Platform
Citi —London
- Full-time
- Hybrid work
- Doctoral degree
- Computer Science
- Engineering
- Annual leave
- Employee assistance programme
7d
Senior Backend Software Engineer - Application Development
Palantir Technologies —London
- Full-time
- Java
- In-person
- Communication skills
- Work from home

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Backend Developer (SC Eligible/ Cleared)

Scrumconnect Consulting
London

Apply Now

Job details

Permanent
£55,000 - £65,000 a year
7 days ago

Qualifications

Spring Boot
Technical troubleshooting
Kotlin
Cloud infrastructure
Gradle
Law
Computer Science
JUnit
MCP
Cucumber (software testing tool)
NoSQL
Test-driven development
MongoDB
Master's degree
Bachelor's degree
CI/CD pipelines
PostgreSQL
Scala
Back-end development
JPA
REST
Scrum
Technical writing
GitHub
Kafka
GraphQL
Design documentation
Maven
AI
Jenkins
Communication skills
Spring MVC

Full job description

Job Information

Date Opened

04/08/2026

Job Type

Permanent

Industry

IT Services

Work Experience

5+ years

Salary

£55k - £65k

City

London

Province

Greater London

Country

United Kingdom

Postal Code

EC1A

Job Description

About Scrumconnect Consulting

Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens.

With a strong commitment to user-centred design and agile delivery, we continue to build innovative digital services that truly make a difference.

Role Purpose

We are looking for an experienced Backend Developer to design, build, and maintain scalable, secure server-side services and APIs, while contributing to the adoption of Agentic AI capabilities within our engineering platform. The role sits at SFIA Level 4: the individual works under general direction, uses discretion in resolving problems, plans and monitors their own work (and may guide junior colleagues informally), and understands how their work contributes to broader team and organisational objectives.

Key Responsibilities

Design, develop, test, and maintain backend services and REST/GraphQL APIs using Java/Spring Boot (or equivalent modern backend stack).
Contribute to system architecture and data model design in collaboration with senior/lead engineers.
Write clean, well-tested, maintainable code following TDD/BDD practices and team coding standards.
Participate in code reviews, providing and receiving constructive feedback.
Integrate backend services with databases (relational and NoSQL), messaging/event systems, and third-party APIs.
Build, extend, and operate agentic AI workflows — integrating LLM-based agents and tools into backend systems for automation, orchestration, and decision support.
Support CI/CD pipelines, containerised deployments, and cloud infrastructure (AWS/Azure) for services owned by the team.
Diagnose and resolve production issues, contributing to monitoring, logging, and observability practices.
Document technical designs, APIs, and agent workflows clearly for other engineers and stakeholders.
Work closely with QA, DevOps, and product teams within an Agile/Scrum delivery model.

Technical Skills

Core Backend

Languages: Java 11/17/21 (or later), with working knowledge of Kotlin/Scala a plus
Frameworks: Spring Boot, Spring MVC, Spring Security, Hibernate/JPA
APIs: REST, GraphQL, OpenAPI/Swagger
Databases: PostgreSQL, Oracle, MongoDB, Elasticsearch
Messaging/Streaming: Kafka, RabbitMQ, event-driven architecture
Testing: JUnit, Mockito, TDD/BDD, Cucumber
Build & CI/CD: Maven/Gradle, Git, Jenkins/GitHub Actions/GitLab CI
Cloud & Containers: AWS (EC2, S3, Lambda, EKS, RDS, IAM) or Azure, Docker, Kubernetes
Monitoring: Grafana, Prometheus

Agentic AI Skills (Required/Desirable)

Understanding of LLM agent architectures: reasoning loops, tool-use, planning, and memory patterns.
Hands-on experience (or strong aptitude to learn) building or integrating agents using frameworks such as LangChain, LangGraph, AutoGen, CrewAI, or the Model Context Protocol (MCP).
Ability to design and expose backend services as tools/functions callable by AI agents (tool schemas, function calling, structured outputs).
Experience with retrieval-augmented generation (RAG): vector databases (e.g., Pinecone, Weaviate, pgvector), embeddings, and chunking strategies.
Working knowledge of prompt engineering and evaluation techniques for agent reliability, safety, and cost control.
Familiarity with orchestrating multi-agent workflows and human-in-the-loop approval steps for sensitive actions.
Awareness of security, data-privacy, and governance considerations specific to AI agents (prompt injection risks, access scoping, audit logging).
Experience integrating with LLM provider APIs (e.g., Anthropic Claude API, OpenAI API) including streaming responses and tool-result handling.

Qualifications & Experience

Bachelor's degree in Computer Science or related field, or equivalent demonstrable experience.
10-15 years' commercial backend development experience.
Proven experience delivering production-grade services in Agile/Scrum teams.
Exposure to (or strong interest in) integrating AI/LLM capabilities into production systems.
Good communication skills; comfortable explaining technical trade-offs to both technical and non-technical stakeholders.

Diversity & Inclusion

At Scrumconnect Consulting, we believe that diversity drives innovation. We are committed to creating an inclusive environment where every individual is respected, valued, and supported.

We welcome applications from candidates of all backgrounds and experiences, and we actively encourage applications from women, people with disabilities, under-represented communities, and those seeking flexible working arrangements.

Apply Now

Refine Your Search

senior java developer jobs in croydon

Backend Developer (SC Eligible/ Cleared)

Senior Payments Engineer

Sr Software Engineer I

Senior Software Developer

Senior Backend Software Engineer - Infrastructure

Synthetics Lead Developer

Python Developer

Senior Software Engineer

Sr Software Engineer

Dev Ops - Java/Python - London

Solar Web UI Developer

Senior Python Developer

UK Development Team Lead

Low Latency Developer

Senior Software Engineer - Regulatory News

Senior Software Engineer - Advisory Suite

Senior Backend Engineer

Senior ETRM Application Developer

Senior Blockchain Engineer - Digital Assets Platform

Senior Backend Software Engineer - Application Development

I want to receive the latest job alerts for senior java developer in croydon

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