1,371 Back End jobs in the United Kingdom

Rayo, part of the UBDS group, is seeking a Back-End Developer to design, build, and maintain robust APIs and microservices for AWS-hosted platforms. This role involves delivering secure, scalable server-side solutions using Java and Spring Boot, with strong integration across AWS managed services. The successful candidate will also be expected to contribute to DevOps practices, performance optimisation, and team-wide code quality.

This opportunity is suitable for experienced developers looking to deepen their technical leadership, as well as those progressing into a senior capacity with hands-on AWS delivery and solution design experience.

Key Responsibilities:

• Develop and maintain back-end components using Java (11+) and Spring Boot.
• Design and implement RESTful APIs and microservices within secure, cloud-native architectures.
• Integrate with a range of AWS managed services such as SQS, SNS, RDS, Lambda, ECS, and EventBridge.
• Apply test-driven development practices, ensuring code quality and maintainability.
• Contribute to CI/CD pipelines using tools such as Jenkins, GitHub Actions, or AWS CodePipeline.
• Collaborate with DevOps teams and demonstrate awareness of infrastructure-as-code principles.
• Lead on performance tuning, monitoring, and debugging activities.
• Mentor junior developers and participate in code reviews and solution design discussions.
• Support the enforcement of engineering best practices across Agile delivery teams.

Requirements

• Strong proficiency in Java (11+) and Spring Boot frameworks.
• Experience designing and building scalable APIs and microservices.
• Hands-on experience with AWS services including SQS, SNS, RDS, Lambda, ECS/EKS, and EventBridge.
• Familiarity with CI/CD pipelines and DevOps collaboration in cloud environments.
• Demonstrable understanding of test-driven development and debugging techniques.
• Comfortable working within Agile teams and engaging in collaborative delivery.

Desirable Experience:

• 2–6 years of Java back-end development experience, including production deployments.
• Minimum of 2 years working on AWS cloud platforms in delivery roles.
• Prior experience designing secure and scalable systems for public sector or enterprise clients.
• AWS certifications (e.g., AWS Certified Developer or Solutions Architect) are advantageous.
• Experience mentoring teams and leading technical implementation efforts.

Benefits

Why people choose to grow their careers at UBDS Group

Professionals choose to grow their careers at UBDS Group for its reputation as a dynamic and forward-thinking organisation that is deeply committed to both innovation and employee development. At UBDS Group, employees are given unique opportunities to work on cutting-edge projects across a diverse range of industries, exposing them to new challenges and learning opportunities that are pivotal for professional growth. The Group’s culture emphasises continuous improvement, offering ample training programs, mentorship, and the chance to gain certifications that enhance their skills and marketability.

UBDS Group fosters a collaborative environment where creativity and innovation are encouraged, allowing employees to contribute ideas and solutions that have a tangible impact on the company and its clients. This combination of professional development, a culture of innovation, and the opportunity to make meaningful contributions makes UBDS Group an attractive place for those looking to advance their careers and be at the forefront of technological and operational excellence.

Employee Benefits

• Training – All team members are offered a number of options in terms of personal development, whether it is technical led, business acumen or methodologies. We want you to grow with us and to help us achieve more
• Private medical cover for you and your spouse/partner, offered via Vitality
• Discretionary bonus based on a blend of personal and company performance
• Holiday – You will receive 25 Days holiday, plus 1 day for Birthday and 1 day for your work anniversary in addition to UK bank holidays
• Electric Vehicle leasing with salary sacrifice
• Contributed Pension Scheme
• Death in service cover

About UBDS Group

At UBDS Group our mission is to support entrepreneurs who are setting new standards with technology solutions across cloud services, cybersecurity, data and AI, ensuring that every investment advances our commitment to innovation, making a difference, and creating impactful solutions for organisations and society.

Equal Opportunities

We are an equal opportunities employer and do not discriminate on the grounds of gender, sexual orientation, marital or civil partner status, pregnancy or maternity, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability or age.

Join to apply for the Senior Software Engineer - back office role at Uswitch

2 days ago Be among the first 25 applicants

Join to apply for the Senior Software Engineer - back office role at Uswitch

Description
Do not wait to apply after reading this description a high application volume is expected for this opportunity.

Hybrid: 2 days per week in our London office (Tower Bridge/London Bridge)
Every household in the UK uses energy. Meeting the needs of this diverse population requires close collaboration with some of the largest companies in the world to develop energy products. The market is evolving and as an increasing proportion of consumers choose electric vehicles and embrace green technology upgrades the marketplace is increasing in complexity. You will be key to helping UK households make informed decisions that lower their bills. You will build and maintain services performing thousands of complex calculations in real time to price hundreds of possible tariffs. You will provide data to help energy suppliers launch tariffs tailored to our customers. You will track financial performance and develop tooling to provide visibility on the outcome of every consumer who uses our products and services.

Department: Engineering
Location: London
Description
Hybrid: 2 days per week in our London office (Tower Bridge/London Bridge)
Every household in the UK uses energy. Meeting the needs of this diverse population requires close collaboration with some of the largest companies in the world to develop energy products. The market is evolving and as an increasing proportion of consumers choose electric vehicles and embrace green technology upgrades the marketplace is increasing in complexity. You will be key to helping UK households make informed decisions that lower their bills. You will build and maintain services performing thousands of complex calculations in real time to price hundreds of possible tariffs. You will provide data to help energy suppliers launch tariffs tailored to our customers. You will track financial performance and develop tooling to provide visibility on the outcome of every consumer who uses our products and services.
As a team responsible for transforming data and performing calculations, we use functional languages to develop our APIs, predominantly Clojure. You will support in developing our architecture sustainably, introducing new tooling as ap
What You'll Be Doing
Engineering at Uswitch focuses on:

• Excellence: Work in an established & experienced product team branching into new feature development, supporting and improving the teams delivery & technical expertise.
• Collaboration: Work with various cross-functional disciplines across the organization to make the best ideas a reality.
• Autonomy: Authority over technical decisions and implementation approach, so you can deliver using methods that best align with your ways of working.
• Data Driven: Utilize rich real-time logs, metrics, and data to monitor and improve product performance & reliability.
• Culture: Enhancing a diverse engineering culture by taking part in various technical catch ups, working groups and All Hands.
• Experience: Enrich RVUs perspective by sharing your experience, knowledge & expertise in a continuous learning environment.
  

• Feature ideation, development and measurement
• Defining, evolving, and applying team processes
• Developing simplified domain models for the product
• Maintaining the full stack, from product to payouts
• Building efficient CI/CD pipelines
• Optimizing the UX & performance of the product across devices
  

• Experience working in large and small agile teams of engineers, and eager to collaborate with other disciplines, such as Designers, Analysts & Product Owners.
• Good understanding of building and maintaining robust, performant APIs
• Experience with multi languages is a plus - we believe in using the right tool for the job
• Pragmatic approach to deliver effective solutions to address business & consumer challenges.
• Committed to your own development and excited to make a direct, substantial impact within a company that provides you with full autonomy to release changes daily.
  

• Employer matching pension up to 7.5%
• Hybrid approach of in-office and remote working, and a Work from Home budget to help contribute towards a great work environment at home
• Excellent maternity, paternity and adoption leave policy, for those key moments in your life
• 25 days holiday (increasing to 30 days) + 2 days My Time per year
• Up to 30 days per year working from anywhere
• A healthy learning and training budget, as well as the chance to go to conferences around the world every year
• Electric vehicles scheme
• In office gym
• Free breakfast in the office daily
• Health insurance
• Access to the Calm and Peppy app for physical and mental health
• Regular events - from team socials to company-wide events with insightful external speakers, we want to make sure our colleagues continue to feel connected

• Seniority levelMid-Senior level

• Employment typeFull-time

• Job functionEngineering and Information Technology
• IndustriesTechnology, Information and Internet

Referrals increase your chances of interviewing at Uswitch by 2x

Get notified about new Senior Software Engineer jobs in London, England, United Kingdom.

London, England, United Kingdom 3 days ago

London, England, United Kingdom 3 days ago

London, England, United Kingdom 2 weeks ago

London, England, United Kingdom 1 day ago

London, England, United Kingdom 6 days ago

City Of London, England, United Kingdom 175,000.00-185,000.00 3 weeks ago

London, England, United Kingdom 5 days ago

London, England, United Kingdom 3 days ago

London, England, United Kingdom 3 days ago

London, England, United Kingdom 1 week ago

London, England, United Kingdom 2 weeks ago

London, England, United Kingdom 5 days ago

City Of London, England, United Kingdom 100,000.00-140,000.00 2 weeks ago

London, England, United Kingdom 3 weeks ago

London, England, United Kingdom 3 weeks ago

London, England, United Kingdom 1 week ago

London, England, United Kingdom 1 month ago

London, England, United Kingdom 1 week ago

City Of London, England, United Kingdom 3 days ago

London, England, United Kingdom 4 days ago

London, England, United Kingdom 1 week ago

London, England, United Kingdom 2 weeks ago

London, England, United Kingdom 1 week ago

London, England, United Kingdom 3 months ago

London, England, United Kingdom 2 months ago

Greater London, England, United Kingdom 2 months ago

City Of London, England, United Kingdom 1 month ago

London, England, United Kingdom 1 week ago

London, England, United Kingdom 1 week ago

London, England, United Kingdom 2 days ago

London, England, United Kingdom 14 hours ago

Were unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.

**Back-End API Developer - Newcastle-Upon-Tyne (hybrid) - 40-45,000 per annum + benefits**

We are seeking an experienced Back-End API Developer. In this role, you will be responsible for designing, building, and maintaining secure, scalable, and high-performance APIs. You'll work closely with front-end developers, DevOps engineers, and product teams to deliver complex business logic to the front-end web application.

Key accountabilities

• Design, implement, and maintain RESTful APIs
• Develop reusable and secure server-side logic, middleware, and services
• Integrate with third-party APIs and data sources
• Work with databases to design schemas and optimize queries
• Write unit, integration, and end-to-end tests for back-end components
• Monitor, troubleshoot, and improve application performance and scalability
• Ensure APIs are well-documented and follow consistent standards
• Collaborate with front-end and mobile developers to define API contracts
• Participate in agile development processes including sprint planning and code reviews

Skills and experience

• Proficiency in back-end languages like Node.js, Python, Java, Ruby, Go, or .NET
• Experience building and maintaining RESTful APIs
• Solid understanding of authentication and authorization (e.g., OAuth2)
• Expertise in developing system services in C, C++ and C#
• Experience with database design and query optimization
• Familiarity with containerization and cloud services (AWS, Azure, GCP)
• Understanding of CI/CD pipelines, version control (Git), and DevOps practices
• Familiarity with API gateways, webhooks, and event-driven architectures
• Experience writing or contributing to API documentation (Swagger/OpenAPI is a plus)
• Previous experience with Delphi is a plus.

Damia Group Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept our Data Protection Policy which can be found on our website.

Please note that no terminology in this advert is intended to discriminate on the grounds of a person's gender, marital status, race, religion, colour, age, disability or sexual orientation. Every candidate will be assessed only in accordance with their merits, qualifications and ability to perform the duties of the job.

Damia Group is acting as an Employment Business in relation to this vacancy and in accordance to Conduct Regulations 2003.

Portfolio are proud to be exclusively representing an award-wining, Software provider based in the heart of Manchester, providing people solutions to over 100,000 clients worldwide.

In this role our client is looking for a candidate that possess an ability to work in cross-functional product teams, in a truly agile way, delivering small increments of value to our customers very frequently. An Ideal candidate would have experience of REST, JSON and how to build clean architecture with TDD and BDD for mobile platforms.

The ideal candidate will have a positive, 'can-do' attitude, with a thirst for knowledge and the ability communicate knowledge effectively and work within a team.

Key Responsibilities/Skills:

• Ensure that the initiative has a coherent Definition of Done and that your features are met.
• Able to communicate a complicated problem succinctly accurately and coherently to a team with different skill sets.
• Exhibit cross functional behaviour and support other competencies within the company.
• Able to negotiate and compromise solutions and find the balance between best practice, expediency and longer-term maintenance costs.
• Demonstrate, discuss and permeate current good practice in the skills specific to your professional family across other members of your professional family.
• Propose new technology, process or tooling to improve efficiency being aware of the future maintenance costs and consistency across other product teams.
• You make realistic commitments that you are confident of meeting and strive to do so.
• Maintain and improve engineering practice.
• Maintain and improve software quality for features built (TDD, Pairing, Peer Review, Static Analysis)
• Support the product owner and Development Lead in the provision of estimates that are at an appropriate level of fidelity for the phase in the development lifecycle.
• Support the QA in identifying describing and resolving defects.
• Support the BA in the elaboration of requirements.
• You take responsibility for the entire lifecycle of delivery from idea, marketing, sales and operation.
• Manage your own training requirements.
• Attend industry events and share the value with your

Benefits:

• 25 days' holiday, plus bank holidays.
• Day off on your birthday.
• Holidays increase after 2- and 5-years' service.
• Pension Plan and Life Insurance.
• Access to Employee Assistance Programme.
• Company incentives, access to discount schemes.
• Profit Share Scheme.

P(phone number removed)NBR2

INDMANS

*Please note this is a training programme with career placement and fees apply*

If you are looking to progress a career in computer programming or web development, then this training and placement programme is made for you?

Skills shortages in the IT sector are driving the need for qualified, entry-level career seekers and career changers.

All you need is a desire to work hard and invest some time and money in yourself to build the foundations for a new career.

We help you start your career journey in programming by firstly ensuring you have the necessary industry recognised certifications and skills required to build a career.

We ensure you market yourself properly through a structured career driven cv and LinkedIn profile highlighting your skills, any experience, and relevant transferable skills from other roles.

Finally, our tutors will help you create a credible portfolio to demonstrate your skills and abilities to potential new employers.

We have many years of experience in helping graduates find their first roles in top UK companies and organisations who need to employ entry-level qualified programming staff that can hit the ground running with up-to-date skills gained from this programme.

The programme is specifically designed for individuals with none or limited experience but a real desire to start a career. Therefore, please do not apply if you are already an experienced programmer.

Whether you are working full-time, part-time or are unemployed, this package has the flexibility to be completed at a pace that suits you and can be completed in as little as a few weeks or a few months (see steps 1 to 4 below). Study timings are approximate and assume you can study for a minimum 5 hours per week. *Training times will be reduced if you are able to invest more time each week.

Stage 1 – Learn HTML and CSS (*up to 12 weeks)

The first step is completing a selection of professional and industry-recognised courses. We have carefully selected these courses to give you the most out of both your learning and employment journey.

• HTML Essentials (*up to 6 weeks)
li>CSS Essentials (*up to weeks)

Training is delivered through multimedia rich video tutorials, presentations and quizzes using an online portal enabling you to study online from anywhere you choose. You will also be assigned an expert tutor and a support mentor who will work with you 1-2-1 or in group sessions to provide additional training and support.

Once the HTML & CSS courses are complete, your trainer will move you forward to the next stage.

Stage 2 – Additional Online Training (*up to 12 weeks)

The second step includes a selection of more advanced courses to get you up to speed for what is required and relevant for many entry level programming roles and help you get a step ahead.

< i>Learn the Command Line (*1.5 weeks)
• Learn Git & GitHub (*1.5 weeks)
• Learn JavaScript (*1.5 weeks)

• Learn Python 3 (*1.5 weeks)

JavaScript forms the foundation of almost everything you see on the Internet. Therefore, this is an essential addition language in building your programming and development foundation.

Python is a highly versatile programming language and due to its relatively “easy to understand” commands now one of the most common programming languages used. You can use it for both small and complex tasks, and it is used across many different industries broadening your scope of opportunity.

Step 3 - Building a Portfolio Website Project (1 week)

Your tutor will provide you with some exercises and guidelines to help you build your own personalised portfolio. Having a strong portfolio to which demonstrates and showcases your range of skills and ability is essential within a programming career.

In addition, we will now provide additional Study Courses for your continued development and broadening of your skills. Completion of these course is voluntary but recommended.

• Microsoft Certified: Azure Administrator Associate

Step 4 – Entry Level Coding placement

We will now work with you to help you secure your first role in a role utilising your new skills in a coding, programming, or web development role. Entry level roles typically start between £25K - £40k dependant on any prior knowledge or experience you may have.

There are many entry level roles where your newly learned skills can be applied meaning a vast array of opportunities are now available to you. Examples of some of these are listed below: -

• Website Support Developer
• Junior Web Developer
• Content Editor
• Wordpress Developer
• Junior Software Developer
• Junior Front or Back End Development
• Development Support

We have been helping career changers and new career seekers gain new careers since 2009 and we are a CompTIA Gold Partner, accredited by the BCS (Chartered Institute of IT/ British Computer Society) to ensure we provide the highest levels of training. We also have a 4.9 Trustpilot rating and numerous testimonials available on our website.

Our money back Job Guarantee

Due to our success and confidence in the results we deliver, and the skills shortage for entry-level coding staff we guarantee you will secure a job upon completion of your study programme, or we will refund you 100% of your course fees back. This is subject to our terms of learning/ terms of business.

Qualification for this programme?

To ensure we maintain a high level of support for our candidates, we limit spaces to this programme.

Apply before the deadline and one of our consultants will speak with you to check your eligibility for the programme.