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Backend Developer jobs in London

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    • Design, develop, and maintain backend services using Java and Spring Boot.
    • We are seeking an experienced Java Developer with 2 to 3 years of hands-on experience…
    • Develop backend services, APIs and integrations.
    • Work closely with the CTO, lead developers, product owners and business stakeholders.
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    • Solid understanding of RESTful APIs and backend service design principles.
    • Strong hands-on experience building backend systems using Java and Spring Boot.
    • Be mentored and mentor other developers on web, backend, and data storage technologies and our system.
    • Lead backend engineering efforts from rapid prototypes to…
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    • At Capital One, you'll be part of a community of technical leaders who drive engineering excellence, foster innovation, and deliver impactful solutions that…
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    • Strong proficiency in modern backend languages such as Kotlin and/or Python.
    • Design & Develop: Iteratively develop robust, high-performance software solutions…
    • You'll design, architect, and develop world-class case management and investigation capabilities in Go, empowering security analysts to be more effective at…
    • Leadership skills with experience mentoring junior developers and fostering a collaborative environment.
    • Work closely with front-end developers, UI/UX designers…
    • This is a high trust environment where we allow team members to manage their own time, take holidays as they need it and reward them with competitive salaries…
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    • Drive adoption of developer platforms, automation capabilities and enterprise engineering standards across multiple teams.
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    • Develop high-performance backend services and APIs that operate at enterprise scale.
    • Build and enhance internal developer tools, frameworks and reusable…
    • Exposure to AI-assisted software engineering practices and developer productivity platforms.
    • What You'll Do As a Senior Full Stack Engineer, you'll work across…
    • Writing clean, maintainable JavaScript code and collaborating with backend teams on API integration.
    • The work could involve partnering with backend engineers,…
    • Up to £100k salary plus bonus (c20%).
    • Hybrid working (3 days a week work from home).
    • 25 days holiday (plus buy days and your birthday off).
    • Collaborating with backend engineers to integrate APIs and microservices.
    • Potential for progression toward lead or senior developer roles, where supported by…

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Job Post Details

Java Developer - job post

Information Tech Consultants
1.3 out of 5 stars
Greater London
£35,000 - £40,000 a year - Full-time
Responded to 51-74% of applications in the past 30 days, typically within 3 days.

Job details

Pay

  • £35,000 - £40,000 a year

Job type

  • Full-time

Location

Greater London

Full job description

Job Title: Java Developer
Location: Onsite
Experience: 2–5 years
Employment Type: Full-Time

Job Summary:

We are seeking an experienced Java Developer with 2 to 3 years of hands-on experience in building applications using Java, Spring Boot, and Microservices architecture. The ideal candidate should also have a basic understanding of JUnit for testing and cloud platforms.

Key Responsibilities:

· Design, develop, and maintain backend services using Java and Spring Boot

· Build and maintain microservices and REST APIs

· In-depth experience in building RESTful APIs and microservices using Spring Boot.

· Proficient in using Spring Boot starters, auto-configuration, and Spring Security.

· Integrated Spring Data JPA with Spring Boot applications and handled database migrations using tools like Flyway or Liquibase.

· Experienced in working within Agile/Scrum environments, participating in daily stand-ups, sprint planning, retrospectives, and backlog grooming.

· Familiar with Agile tools such as JIRA, Confluence, or Azure DevOps for tracking stories, tasks, and sprint progress.

· Actively contributed to sprint ceremonies and ensured timely delivery of features aligned with sprint goals and definition of done.

· Experience integrating with databases, Kafka, or third-party APIs using Spring Boot modules.

· Write unit and integration tests using JUnit

· Collaborate with DevOps and QA teams to ensure cloud deployment and testing

· Debug and resolve technical issues across the application stack

· Implement best practices in coding, testing, CI/CD, and security.

· Hands-on experience managing project dependencies and build lifecycles using Maven and/or Gradle.

· Expertise in configuring multi-module Java projects with custom build profiles and plugins.

· Familiar with automating build, test, and deployment workflows using Maven/Gradle in CI/CD pipelines.

· Proficient in Git version control, including branching, merging, rebasing, and resolving conflicts.

· Worked in teams using Git-based workflows like Git Flow or Feature Branching.

· Experience using Bitbucket for source code management, pull requests, code reviews, and repository administration.

· Strong knowledge of SQL for querying and managing relational databases like MySQL, PostgreSQL, or Oracle.

· Skilled in writing complex joins, subqueries, stored procedures, and performance tuning.

· Experience with integrating SQL queries within Java applications using JDBC, JPA, or Spring Data JPA.

· Extensive experience in unit testing Java applications using JUnit 4/5.

· Skilled in writing parameterized tests, assertions, and test lifecycle hooks.

Required Skills & Experience:

· 2–3 years of strong hands-on experience with Java and Spring Boot

· Proven experience in developing and deploying microservices

· Proficient in using Spring Data JPA for ORM (Object-Relational Mapping) and seamless integration with relational databases.

· Deep understanding of entity relationships (OneToMany, ManyToOne, etc.), lazy/eager loading, and cascade types.

· Familiarity with JUnit for writing and executing test cases

· Basic understanding of cloud platforms like AWS, Azure, or GCP

· Strong knowledge of RESTful APIs, JSON, and HTTP

· Experience with version control tools like Git

· Experienced in working within Agile/Scrum environments.

· Familiar with Agile tools such as JIRA, Confluence, or Azure DevOps for tracking stories, tasks, and sprint progress.

Nice to Have:

· Exposure to CI/CD tools like Jenkins, GitLab CI/CD, etc.

· Knowledge of Docker, Kubernetes, or any container orchestration

· Experience with message brokers like Kafka or RabbitMQ

Educational Qualification:

Bachelor’s degree in Computer Science, Information Technology, or related field

Job Type: Full-time

Pay: £35,000.00-£40,000.00 per year

Application question(s):

  • We must fill this position urgently. Can you start immediately?
  • Are you available for relocation across UK?
  • Mention your visa type.
  • Will you be able to join by Mid Sept?

Education:

  • Bachelor's (required)

Work authorisation:

  • United Kingdom (required)

Work Location: In person

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