Backend Developer jobs in London
Java Developer
Urgently neededNewInformation Tech ConsultantsGreater LondonOften responds in 3 days48 hires made in past 30 days- 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…
Full Stack Developer
Urgently neededNewBayutiLondon- Employee stock ownership plan
- Company pension
- On-site gym
- Develop backend services, APIs and integrations.
- Work closely with the CTO, lead developers, product owners and business stakeholders.
- CrowdStrikeLondon
- 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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View similar jobs with this employerAristocratLondon WC2R- Solid understanding of RESTful APIs and backend service design principles.
- Strong hands-on experience building backend systems using Java and Spring Boot.
View similar jobs with this employerCitiLondon EC3A- Annual leave
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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…
View similar jobs with this employerCitiLondon EC3A- Annual leave
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- deltaflareRichmond
- Flexible schedule
- Leadership skills with experience mentoring junior developers and fostering a collaborative environment.
- Work closely with front-end developers, UI/UX designers…
- CrowdStrikeLondon
- 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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- Develop high-performance backend services and APIs that operate at enterprise scale.
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- Huxley§London
- Annual leave
- Employee discount
- Private dental insurance
- Paid volunteer time
- Private medical insurance
- 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…
- SThreeLondon
- Annual leave
- Company pension
- Writing clean, maintainable JavaScript code and collaborating with backend teams on API integration.
- The work could involve partnering with backend engineers,…
- SThreeLondon
- Annual leave
- Company pension
- Collaborating with backend engineers to integrate APIs and microservices.
- Potential for progression toward lead or senior developer roles, where supported by…
- client serverReigate RH2 9PQ
- Company pension
- Work from home
- 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).
- SThreeLondon
- Collaboration with experienced developers and cross-functional teams.
- Collaborating with backend teams to integrate APIs and microservices into frontend…
Job Post Details
Java Developer - job post
Job details
Pay
- £35,000 - £40,000 a year
Job type
- Full-time
Location
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