1,390 Back Developer jobs in the United Kingdom
Back End Developer
Posted 4 days ago
Job Viewed
Job Description
Senior Backend Developer- Node.JS
Express new ideas, take initiative and save lives. Others talk about being brave, at CLEO Systems, we’re made that way.
By providing highly capable, innovative, and integrated software solutions within integrated urgent care – every role at CLEO Systems is made to be brave.
As a Senior Software Developer at Cleo Systems, you will play a key role in designing, building, and maintaining robust, high-performance backend services that power our healthcare applications. You’ll work with modern technologies including Node.js, Redis, RabbitMQ, Postgres, and Docker to deliver scalable and secure software that directly supports clinicians and patients.
You will take ownership of critical technical components, contribute to architecture decisions, and collaborate with cross-functional teams including DevOps, Product and QA to ensure high-quality delivery. Your experience in event-driven systems, microservices, and containerised environments will help shape our evolving platform.
The ideal candidate for this role would be an experienced engineer who enjoys solving complex problems, writing clean and efficient code, and mentoring others to uphold best practices in software engineering.
You will have experience with –
- Backend Development: Design, develop, and maintain backend services using Node.JS
- Messaging & Asynchronous Workflows: Build and manage reliable messaging patterns using queues such as RabbitMQ and Pub/Sub patterns.
- Database Design: Develop efficient and scalable queries and schemas using PostgreSQL.
- API Design: Develop clean, RESTful APIs and contribute to internal and external API documentation.
- Containerisation: Aid in building services in containerised environments using Docker.
- Code Quality: Write testable, maintainable code and contribute to peer reviews, testing, and CI/CD pipelines.
Who are we?
CLEO Systems is a wholly owned subsidiary of Integrated Care 24 (IC24), the leading not-for-profit Social Enterprise providing innovative, and patient focused primary care services. We are committed to delivering ‘Clinical Excellence Online’ (CLEO). Through this mission we contribute to the wider Group ambition to improve access to health and social care for patients and reduce the demand on secondary care services. IC24 provides services to over 6 million patients, including GP led out-of-hours services, NHS 111, primary care and secondary care support services.
Location Hybrid (occasional travel to Ashford Kent)
Hours 37.5 per week
What’s in It for You?
- Salary : £70,000 per annum, depending on experience
- Location: Hybrid – Remote & occasional travel to our office in Ashford, Kent
- Benefits : Access to the Nest Company Pension Scheme, free 24/7 independent counselling service, and a reward and discount platform.
- Benenden Health : company paid health support from private GP appointments to secondary care treatment.
- Learning and Development : Opportunities to advance your career through training and development.
- Community Engagement : We support volunteering and provide one paid day annually for community or charitable activities.
Due to the nature of this position, employment is subject to proof of eligibility to work in the UK, completion of a satisfactory basic DBS disclosure and two references.
Closing date: 27th August 2025
At CLEO Systems we celebrate brave ideas and brave people.
We are committed to providing equal opportunities for all people and we particularly encourage applications from ethnic minorities, applicants with a disability and those from other under-represented groups.
If you would like to discuss any reasonable adjustments before applying or would like an accessible version of any recruitment documents, please contact the recruitment team on
Back-End Developer
Posted 18 days ago
Job Viewed
Job Description
Data storage is at the heart of everything we do in life. From every photo to every financial transaction, data is generated and stored somewhere in the world, be it on a customer's own premises or in the cloud. The FlashSystem team at IBM Hursley creates resilient, high-performance and intelligent storage software that keeps business-critical systems and data available 24/7.
Our success comes down to one thing: our people. We are looking for a talented and motivated Software Development Engineer to join our engineering team here in Hursley.
The role requires strong technical skills, a problem-solving mindset and the ability to collaborate effectively across teams.
**Your role and responsibilities**
In this role, you will:
· Join a squad of 6-8 engineers to design, develop and maintain code and solutions using the latest enterprise-level tools.
· Collaborate with product managers, designers and other engineers to define and deliver high-quality software solutions.
· Participate in code reviews, architecture discussions and team meetings.
· Write automated tests to ensure high test coverage and software quality.
· Monitor, debug and resolve issues in production and development environments.
· Contribute to continuous improvements of development practices, tools and methodologies.
· Use technologies and industry-standard tools such as C, Java, Python, Git, Jenkins, and Docker
· Learn from our team of 100+ IBM Storage developers in Hursley, plus hundreds more worldwide, to become an expert in our product.
· Work onsite in Hursley for team collaboration and hands-on work with our products.
**Required technical and professional expertise**
· Bachelor's degree in Computer Science, Software Engineering or a related field, or equivalent practical experience
· 2-5 years of professional software development experience
· Experience with C, Python, Bash and Systemd, working close to hardware in embedded Linux environments. Familiarity with low-level components such as CPUs, BIOS and PCIe is highly desirable.
· Experience with Agile or Scrum methodologies
IBM is committed to creating a diverse environment and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, caste, genetics, pregnancy, disability, neurodivergence, age, veteran status, or other characteristics. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.
Back End Developer
Posted 20 days ago
Job Viewed
Job Description
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.
Senior Back End Developer
Posted today
Job Viewed
Job Description
SeniorBackEndDeveloper
Salary: 63-65kDOE
5daysperweekintheoffice
Skills: C#/.Net/SQL
Areyoulookingforyournextopportunity?
Doyouwanttoworkwithbrandnewtechandhavetheopportunitytodevelopyourselffurtherinabusinessthatpromotesself-development?
ThisisagreatopportunityforaSeniorSoftwareEngineertojoinoneofManchester'smostrenownedSaaScompaniesastheystartworkingonanewgreenfieldproject.
Skillsrequired:
- C#and.NET
- SQLserver
- CreatingandmaintainingRESTful&GraphQLAPIs
- Azurewouldbeabonus
Whatyou'llbeworkingonasaseniorbackenddeveloper:
- Buildingascalableglobalplatformusing.Net8andAzurefunctionapps
- DrivingqualitythroughTestDrivenDevelopment
Whatyou'llreceiveasaseniorbackenddeveloper:
- Structuredcareerprogression&personaldevelopmentplans
- 25daysannualleavewithitincreasingevery2&5years
- TravelSeasonTicketloansscheme
- Discountedproducts-suchascitycentreparking,food&drink
- OnsiteGym
Ifthisseniorbackenddeveloperroleisofinterest,oryou'dliketohearaboutanyofourotheropportunities.Pleasegetintouch.
Senior Back End Developer
Posted today
Job Viewed
Job Description
SeniorBackEndDeveloper
Salary: 63-65kDOE
5daysperweekintheoffice
Skills: C#/.Net/SQL
Areyoulookingforyournextopportunity?
Doyouwanttoworkwithbrandnewtechandhavetheopportunitytodevelopyourselffurtherinabusinessthatpromotesself-development?
ThisisagreatopportunityforaSeniorSoftwareEngineertojoinoneofManchester'smostrenownedSaaScompaniesastheystartworkingonanewgreenfieldproject.
Skillsrequired:
- C#and.NET
- SQLserver
- CreatingandmaintainingRESTful&GraphQLAPIs
- Azurewouldbeabonus
Whatyou'llbeworkingonasaseniorbackenddeveloper:
- Buildingascalableglobalplatformusing.Net8andAzurefunctionapps
- DrivingqualitythroughTestDrivenDevelopment
Whatyou'llreceiveasaseniorbackenddeveloper:
- Structuredcareerprogression&personaldevelopmentplans
- 25daysannualleavewithitincreasingevery2&5years
- TravelSeasonTicketloansscheme
- Discountedproducts-suchascitycentreparking,food&drink
- OnsiteGym
Ifthisseniorbackenddeveloperroleisofinterest,oryou'dliketohearaboutanyofourotheropportunities.Pleasegetintouch.
Python Developer
Posted today
Job Viewed
Job Description
PythonDeveloper/DataEngineer
Python,NoSQL,Elasticsearch
Fullyremote.100%HomeWorking
Opportunitytojoinasmalldataconsultancywhoaredeliveringamajorimpacttotheircustomer.CustomersaregainingincreasedrevenueandfindingcostefficienciesdirectlyfromthedatainsightsprovidedthroughtheSaaSplatform.
Builddatapipelinestoingestdata.
Consultwithinternalandexternalstakeholdersthendeliverthesolution.
Experiencerequired:
- STEM/ComputerScienceDegreeORsufficientcommercialexperience
- GoodskillswithPython.UseofPandasisabonus
- ExperiencebuildingDataPipelines/ETLusingPython
- ExperienceconsumingwithRESTAPIservices
- 1yearscommercialexperiencewithPythonorlanguagessuchasJAVA,PHP,Go
- Communicationskills.YoumustenjoyspeakingwithNon-techstakeholderstogainrequirements
WillIuseAI/ML?
- ThecompanyhasbuiltAIservices.ItisverylikelythatyouwillgetinvolvedwithbuildingAI(OpenAI)servicesandMLservices
Python Developer
Posted 9 days ago
Job Viewed
Job Description
Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python Engineers at mid to senior levels who are passionate about crafting exceptional products.
Initially it will be a five-month contract but there is potential for it to be extended. The role is Hybrid, with one day a week being based in their London office. It is a full-time role, 40 hours per week. If this role feels right, send us your CV.
Accountabilities:
- Playing a pivotal role in the backend engineering team, you will help to build full-stack cloud apps.
- You'll be using Python and AWS Cloud services on the backend.
- Adopt a Server-less first approach to application design, collaborating within an agile team alongside other backend engineers and product designers.
- Strategize, develop, test, and deploy new features and experiments.
- Engage in collaborative coding practices such as pair programming and code reviews within the team.
- Contribute to resolving the complexities inherent in large-scale systems and extensive datasets.
- Foster close collaboration with our Product, Data, Front-end, Platform, and Security teams.
Knowledge and Skills:
- Demonstrated expertise as a Mid or Senior Software Engineer.
- Proficiency in Python as your primary language, or willingness to adapt.
- Hands-on experience with RESTful APIs and/or GraphQL.
- Proficiency in version control tools like Git.
- Sound understanding of development best practices including pair programming and TDD.
- Eagerness to engage with emerging technologies and collaborate with the team in designing solutions from inception, facilitated by effective communication skills that promote teamwork.
- Strong abilities in software design, problem-solving, and debugging.
- Enthusiasm for continuous code improvement and learning from peers.
Please note:
Should your application be successful, and you are offered the role, a number of pre-employment checks need to be carried out before your appointment can be confirmed. Any assignment offer with our client will be subject to a satisfactory checking report from the Disclosure Barring Service.
This vacancy is being advertised by Rullion Ltd acting as an employment business.
Since 1978, Rullion has been securing exceptional candidates for a range of clients; from large well-known brands, to SMEs and start-ups. As a family-owned business, Rullion's approach is credible and honest, focused on building long-lasting relationships with both clients and candidates.
We celebrate and support diversity and are committed to ensuring equal opportunities for both employees and applicants.
Rullion celebrates and supports diversity and is committed to ensuring equal opportunities for both employees and applicants.
Be The First To Know
About the latest Back developer Jobs in United Kingdom !
Python Developer
Posted today
Job Viewed
Job Description
PythonDeveloper/DataEngineer
Python,NoSQL,Elasticsearch
Fullyremote.100%HomeWorking
Opportunitytojoinasmalldataconsultancywhoaredeliveringamajorimpacttotheircustomer.CustomersaregainingincreasedrevenueandfindingcostefficienciesdirectlyfromthedatainsightsprovidedthroughtheSaaSplatform.
Builddatapipelinestoingestdata.
Consultwithinternalandexternalstakeholdersthendeliverthesolution.
Experiencerequired:
- STEM/ComputerScienceDegreeORsufficientcommercialexperience
- GoodskillswithPython.UseofPandasisabonus
- ExperiencebuildingDataPipelines/ETLusingPython
- ExperienceconsumingwithRESTAPIservices
- 1yearscommercialexperiencewithPythonorlanguagessuchasJAVA,PHP,Go
- Communicationskills.YoumustenjoyspeakingwithNon-techstakeholderstogainrequirements
WillIuseAI/ML?
- ThecompanyhasbuiltAIservices.ItisverylikelythatyouwillgetinvolvedwithbuildingAI(OpenAI)servicesandMLservices
Python Developer
Posted 12 days ago
Job Viewed
Job Description
Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python Engineers at mid to senior levels who are passionate about crafting exceptional products.
Initially it will be a five-month contract but there is potential for it to be extended. The role is Hybrid, with one day a week being based in their London office. It is a full-time role, 40 hours per week. If this role feels right, send us your CV.
Accountabilities:
- Playing a pivotal role in the backend engineering team, you will help to build full-stack cloud apps.
- You'll be using Python and AWS Cloud services on the backend.
- Adopt a Server-less first approach to application design, collaborating within an agile team alongside other backend engineers and product designers.
- Strategize, develop, test, and deploy new features and experiments.
- Engage in collaborative coding practices such as pair programming and code reviews within the team.
- Contribute to resolving the complexities inherent in large-scale systems and extensive datasets.
- Foster close collaboration with our Product, Data, Front-end, Platform, and Security teams.
Knowledge and Skills:
- Demonstrated expertise as a Mid or Senior Software Engineer.
- Proficiency in Python as your primary language, or willingness to adapt.
- Hands-on experience with RESTful APIs and/or GraphQL.
- Proficiency in version control tools like Git.
- Sound understanding of development best practices including pair programming and TDD.
- Eagerness to engage with emerging technologies and collaborate with the team in designing solutions from inception, facilitated by effective communication skills that promote teamwork.
- Strong abilities in software design, problem-solving, and debugging.
- Enthusiasm for continuous code improvement and learning from peers.
Please note:
Should your application be successful, and you are offered the role, a number of pre-employment checks need to be carried out before your appointment can be confirmed. Any assignment offer with our client will be subject to a satisfactory checking report from the Disclosure Barring Service.
This vacancy is being advertised by Rullion Ltd acting as an employment business.
Since 1978, Rullion has been securing exceptional candidates for a range of clients; from large well-known brands, to SMEs and start-ups. As a family-owned business, Rullion's approach is credible and honest, focused on building long-lasting relationships with both clients and candidates.
We celebrate and support diversity and are committed to ensuring equal opportunities for both employees and applicants.
Rullion celebrates and supports diversity and is committed to ensuring equal opportunities for both employees and applicants.
Python Developer
Posted today
Job Viewed
Job Description
Mid-Level Python Developer
Location: Manchester (hybrid)
Salary: Up to £65,000 (depending on experience) + benefits
Security Clearance Requirement
Due to the nature of the work, candidates must be eligible for UK Security Clearance and must hold a British passport .
We are looking for a Mid-Level Python Developer to join a growing software consultancy working on secure and mission-critical projects across national infrastructure, defence, and enterprise technology.
In this position, you will:
- Design, develop, and test software using Python .
- Build and deploy solutions in AWS (and occasionally Azure or private cloud).
- Work across the full software lifecycle – from requirements through to delivery and support.
- Implement and maintain CI/CD pipelines and automated testing.
- Collaborate with clients and colleagues in an agile environment.
Skills and Experience Required:
- 4+ years of proven experience developing in Python (full stack additionally).
- Hands-on AWS experience (e.g. Lambda, EC2, S3, etc.).
- Knowledge of CI/CD, testing practices, and agile delivery methods.
- Experience working in a consulting or client-facing role is desirable but not essential.
Be part of a team where your skills make a difference — apply today to shape secure, high-impact software solutions.