Find your next tech and IT Job or contract Back-end

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Permanent

Back End Developer Rust C++ Cryptocurrency

Client Server

Back End Developer / Software Engineer (Rust Low Latency) Remote UK to £150k Are you a back end technologist seeking an opportunity to progress your career, working on cutting edge tech within the cryptocurrency space? You could be joining an early stage start-up building a cross chain liquidity platform to revolutionise capital efficiency and permissionless access to liquidity on-chain to build sustainable decentralised markets; they have secure backing and a recent round of funding is enabling them to scale. What's in it for you: Salary to £150k Remote working, flexible start / finish times Opportunity to join a scaling tech company Your role: As a Back End Developer you'll join a small technology team, working with Rust on the core platform, building low latency and highly parallelised systems with a focus on the data layer. You'll be tackling complex problems and building highly scalable systems to accommodate large data and traffic volumes whilst maintaining extremely low latencies. Location / WFH: There's a remote first policy so you can work from home most of the time, with the caveat you'll join the team for three, one week meet-ups per year (global destinations, the last one was in Thailand). About you: You have commercial Rust development experience on Linux You have experience of building low latency, parallel services You have experience of building highly scalable systems designed scale to large data and traffic volumes whilst maintaining extremely low latencies You have experience with Docker and Kubernetes for deploying services Ideally you will have a good understanding of blockchain fundamentals and mechanics of the EVM You have a strong record of academic achievement in Computer Science Youre collaborative with experience of collaborating with remote, geographically dispersed colleagues Apply now to find out more about this Back End Developer / Software Engineer (Rust Low Latency Cryptocurrency) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Start date As soon as possible
Pay £120k-150k
Location London, England, United Kingdom
Permanent

Back End Software Engineer C# or Java AWS

Client Server

Back End Software Engineer (C# or Java) Sunderland / WFH to £65k Are you an experienced Back End Software Engineer who enjoys using a range of programming languages, collaborating and learning continuously? You could be progressing your career in a hands-on role within a relaxed, supportive team environment at a tech driven online gaming / low-cost gambling SaaS tech company that provide a range of white labelled gaming platforms for household names with millions of concurrent players. As a Back End Software Engineer you will design and develop web applications on a cloud based platform (AWS), collaborating and problem solving with a talented team. The tech stack encompasses C# ASP.Net, MVC, Node.js, Java, REST APIs, Docker, AWS, Terraform, TeamCity and MySQL amongst others, you'll be able to work with a range of tech and pick new things up on the job. Location / WFH: You'll join colleagues in the Sunderland office three days a week, where you'll join fellow technologists in a relaxed environment in awesome custom built offices with a range of facilities and perks including free meals at the onsite restaurant as well as membership at onsite gym; there's also flexibility to work from home two days a week. About you: You have strong backend development skills with C# and / or Java You have experience with AWS You have experience across the full development lifecycle You have a good understanding of Computer Science fundamentals such as OOP, Data Structures, Design Patterns You enjoy problem solving, collaborating and learning What's in it for you: Competitive salary to £65k Bonus, paid quarterly Pension Private medical care Continual training, learning and career development opportunities And a range of other perks and benefits including free breakfast and lunch and onsite gym Apply now to find out more about this Back End Software Engineer / Developer (C# or Java AWS) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Start date As soon as possible
Pay £40k-65k
Location Sunderland Enterprise Park, England, United Kingdom
Permanent

PHP Laravel Full Stack Developer

Ripple Recruitment

A Day in the Life of a Full Stack Developer Imagine starting your day with a freshly brewed coffee and a team huddle that's buzzing with energy, ideas, and ambition. It's Monday, and as always, you're at the heart of innovation in our office. As a Full Stack Developer in our talented team, your role reaches far beyond writing code - you're building the architecture that powers unforgettable digital experiences for users across the UK. You're part of a company leading the digital entertainment evolution. Here, your work has real impact. Every line of code you commit helps shape a platform that brings daily engagement, thrill, and value to thousands. You're involved in the full lifecycle of development - from idea to implementation - ensuring every feature is both robust and elegant. Why You'll Love This Role: You've been searching for a role where you can fully own your craft. Here, you'll work across the entire tech stack, from sleek front-end components to powerful back-end systems. You'll collaborate closely with designers, product leads, and other engineers to build features that don't just function - they impress. Key Responsibilities: Develop, maintain, and optimise scalable, high-performance web applications using Laravel and the wider PHP/LAMP stack. Implement intuitive, responsive front-end interfaces using HTML, CSS, and JavaScript frameworks. Architect and integrate APIs and services that power dynamic, data-driven features. Write clean, testable code and contribute to continuous deployment and CI/CD workflows. Work closely with cross-functional teams to understand user needs and turn them into elegant technical solutions. Participate in regular code reviews, stand-ups, and collaborative planning sessions to keep the team aligned and moving fast. What We're Looking For: A seasoned Full Stack Developer with solid commercial experience across both front-end and back-end disciplines. Proven expertise in Laravel and modern PHP development, with strong understanding of MVC architecture and RESTful APIs. Competent with front-end tech such as HTML5, CSS3, JavaScript (and ideally frameworks like Vue.js or React). Familiarity with MySQL, version control (Git), and cloud platforms or deployment pipelines. A natural collaborator who enjoys problem-solving, learning new tools, and contributing to a supportive team environment. Additional Perks: Hybrid working - in the office every Monday plus two other days of your choice, giving you the right balance of focus and collaboration. 22 days holiday + bank holidays, with a generous benefits package that includes performance bonuses, share options, and access to our company-wide rewards scheme. Join Us: If you're ready to step into a role where your skills matter, your code makes a difference, and your input shapes the future - this is it. We're not just building products; we're building something people look forward to using every single day. Looking to do your best work yet? We're ready when you are.

Start date As soon as possible
Pay £60k-75k
Remote type Hybrid
Location Orpington, England, United Kingdom
Permanent

MI Analyst with MS SQL Server

Nexus Jobs Limited

Job Description MI Analyst with MS SQL Server - City London Our Client is an international bank with offices in the City London. They are looking to recruit an MI Analyst with at least 5 years experience of MS SQL Server, SSIS, SSRS, and Sharepoint. The main elements of the role are follows: - Work within MI team in supporting and delivering all aspects of MI - BAU encompassing data warehouse back end maintenance and Housekeeping - Support annual Disaster Recovery invoking/testing - Contribute to design, build and implementation of new reports and applications/interfaces. - Facilitate internal/external Audits and Penetration Testing. Remediation General Skills -Experience working within mission-critical environments -Experience in operational deployments -Maintains required industry recognised skills through training and self-study methods Technical Skills -In-depth knowledge of MS SQL -In-depth knowledge of SDLC -C# Development (advantageous) Technologies SQL - TSQL, SSIS and SSRS. SQL - DBA. SharePoint & InfoPath. Hyperion (Oracle EPM). C# Any experience of process automation and Equation/iSeries DB knowledge. SWIFT. AIX would be very handy. Good interpersonal skills Thorough and reliable Technically competent Ability to work unsupervised This is 6 month full-time permanent role. The salary will be £45K - £50K pro-rata. It is intended that you will work 2 days from the office and 3 days remotely from home for the foreseeable future. Do send your CV to us in Word format along with your salary and availability.

Start date
Pay £45k-50k
Location London, England, United Kingdom
Permanent

Frontend Software Developer with Javascript HTML

Nexus Jobs Limited

Job Description Frontend Software Developer with Javascript and HTML Our Client is looking to recruit Frontend Software Developer with at least 3 to 5 years experience of developing Frontend software with Javascript and HTML Working as part of the Digital team, you'll be responsible for and delivering some exciting frontend and UX improvements to an eCommerce website as well as other internal applications for this award-winning Luxury Travel Company. The Role You will be responsible for: Own the frontend of the eCommerce website, making continual improvements Collaborating with the back end developer and design resource to deliver improved UI & UX Participate in design discussions and be the voice of the customer on usability Skills and Experience: Excellent working knowledge of HTML, JavaScript, jQuery, CSS & React Framework Previously delivered multiple responsive websites Happy to develop from both wireframes and full designs Experience of working with and developing alongside a CMS (preferably with Umbraco) Capable of working with multiple (REST) APIs documented with e.g. OpenAPI/swagger and other API messaging formats e.g. JSON, XML, SOAP Good knowledge of technical SEO best practices, familiar with LightHouse on assessing page load times Worked in an agile/Kanban environment and familiar with JIRA and confluence Familiar with Git and source control The Clients offices are based in Central London and this role will be remote working. The salary for this role will be in the range £40K to £50K. Do send your CV to us in Word format along with your salary and availability.

Start date
Pay £40k-50k
Location London, England, United Kingdom
Permanent

Senior Python Developer

Nexus Jobs Limited

Job Description Senior Python Developer Our Client is looking to recruit a seasoned Senior Python Software Developer with at least 5 to - 8 years experience of developing software in Python . You must have excellent technical excellence in Python in developing a is required. Excellent verbal communication skills (English a must) Ability to provide recommendations for the e2e architecture infrastructure Proven experience with designing back-end architectures. An understanding of application performance tuning and resource usage Ability to troubleshoot existing scripts and do point bug fixes / application redesign Highly experienced in multiprocessing, multiprocessing, and asynchronous python development (asyncio module) Experience with Docker containers, micro services, and CI/CD pipeline a plus Experience with Django, Flask is a plus Working knowledge with MongoDB, JSON, sync/async architecture Working knowledge of networking theory (TCP/IP) or strong desire to learn it You collaborate with other engineers and people in the organization to improve our solution delivery You believe in Lean/Agile principles and actively work to incorporate them in the organization You care about your craft and strive towards producing high-quality code. A very high degree of autonomy, self-learning and problem solving is expected You should enjoy working in a team and collaborating on projects and codebases. This position can be based anywhere in Europe. The rate will depend upon the level of expertise. The duration of this contract assignment is 6 months. Do send your CV to us in Word format along with your daily rate and availability.

Start date
Location London, England, United Kingdom
Permanent

MI Analyst with MS SQL Server

Nexus Jobs Limited

Job Description MI Analyst with MS SQL Server - City London Our Client is an international bank with offices in the City London. They are looking to recruit an MI Analyst with at least 5 years experience of MS SQL Server, SSIS, SSRS, and Sharepoint. The main elements of the role are follows: - Work within MI team in supporting and delivering all aspects of MI - BAU encompassing data warehouse back end maintenance and Housekeeping - Support annual Disaster Recovery invoking/testing - Contribute to design, build and implementation of new reports and applications/interfaces. - Facilitate internal/external Audits and Penetration Testing. Remediation General Skills -Experience working within mission-critical environments -Experience in operational deployments -Maintains required industry recognised skills through training and self-study methods Technical Skills -In-depth knowledge of MS SQL -In-depth knowledge of SDLC -C# Development (advantageous) Technologies SQL - TSQL, SSIS and SSRS. SQL - DBA. SharePoint & InfoPath. Hyperion (Oracle EPM). C# Any experience of process automation and Equation/iSeries DB knowledge. SWIFT. AIX would be very handy. Good interpersonal skills Thorough and reliable Technically competent Ability to work unsupervised This is 6 month full-time permanent role. The salary will be £45K - £50K pro-rata. It is intended that you will work 2 days from the office and 3 days remotely from home for the foreseeable future. Do send your CV to us in Word format along with your salary and availability.

Start date
Pay £45k-50k
Location London, England, United Kingdom
Permanent

MI Analyst with MS SQL Server

Nexus Jobs Limited

Job Description MI Analyst with MS SQL Server - City London Our Client is an international bank with offices in the City London. They are looking to recruit an MI Analyst with at least 5 years experience of MS SQL Server, SSIS, SSRS, and Sharepoint. The main elements of the role are follows: - Work within MI team in supporting and delivering all aspects of MI - BAU encompassing data warehouse back end maintenance and Housekeeping - Support annual Disaster Recovery invoking/testing - Contribute to design, build and implementation of new reports and applications/interfaces. - Facilitate internal/external Audits and Penetration Testing. Remediation General Skills -Experience working within mission-critical environments -Experience in operational deployments -Maintains required industry recognised skills through training and self-study methods Technical Skills -In-depth knowledge of MS SQL -In-depth knowledge of SDLC -C# Development (advantageous) Technologies SQL - TSQL, SSIS and SSRS. SQL - DBA. SharePoint & InfoPath. Hyperion (Oracle EPM). C# Any experience of process automation and Equation/iSeries DB knowledge. SWIFT. AIX would be very handy. Good interpersonal skills Thorough and reliable Technically competent Ability to work unsupervised This is 6 month full-time permanent role. The salary will be £45K - £50K pro-rata. It is intended that you will work 2 days from the office and 3 days remotely from home for the foreseeable future. Do send your CV to us in Word format along with your salary and availability.

Start date
Pay £45k-50k
Location London, England, United Kingdom
Premium Job
Permanent

Full Stack Developer

Beauty Bay

We are looking for an Mid Level Software Developer to join us at BEAUTY BAY! In this new role, you'll be driving force for technical advancement of BEAUTY BAY's front & back end systems & responsible for the day to day running, enhancement & maintenance of the BEAUTY BAY website & the mobile application. Our Mid-Weight Software Developer remit covers working on any potential new functionality alongside bug fixes & general upkeep. You'll be required to work seamlessly in a team, contribute to technical sessions & be able to communicate technical concepts in non-technical language understood by the business. The scope of the role is not exclusive to the app & website, they are responsible for a number of custom back office pieces of software and 3rd party API integrations that enable the rest of the business to operate. This also includes working closely with the Cloud Ops Team to blend the use of technology between infrastructure & website. Key responsibilities: You will be responsible for specing and adding new features to BEAUTY BAY website & app. Responsible for upkeep and maintenance of BEAUTY BAY website & app. Responsible for upkeep and maintenance of BEAUTY BAY APIs & services. Responsible for upkeep and maintenance of BEAUTY BAY back office systems. Responsible for upkeep and maintenance 3rd party integrations (Feeds, Saas platforms). Work closely with the Infrastructure Team to blend infrastructure & website activities. Skills/Experience required: Extensive working knowledge of TypeScript & JavaScript knowledge. If you have previous experience working in retail/ecommerce this would be highly advantageous Modern CSS experience is highly desirable. Solid React experience using functions and hooks is essential. Experience with APIs using REST Application/API performance & optimisation knowledge. Experience working in a full stack environment. Knowledge of AWS services and APIs. Desire to work in a fast-paced environment & ability to adapt to fast-changing requirements. An understanding of Agile delivery approaches, software craftsmanship best practices & experience of developing software. Headless CMS experience is desirable however not essential. Experience in an e-commerce environment is highly advantageous. Benefits Attractive salary dependant on skills and experience Flexible/hybrid work policy 25 days annual leave plus all bank holidays included Generous staff discount Modern office with collaborative workspaces Enhanced maternity/paternity pay Cycle to work scheme Onsite parking Morning breakfast on us every morning when you are in the office Annual Summer/Christmas events Plus so much more! If this sounds like this is you please apply via email! Beauty Bay are committed to fostering a workplace culture that embraces diversity and promotes inclusion. We are committed to providing equal opportunities for all employees, workers and job applicants regardless of gender, sexual orientation, marital or civil partner status, gender reassignment, race, religion or belief, colour, nationality, ethnic or national origin, disability or age, or pregnancy. Our goal is to create an environment where everyone feels confident and empowered to lead with their ideas and contribute a unique perspective.

Start date As soon as possible
Pay £55k-58k
Remote type Hybrid
Location Greater Manchester, United Kingdom

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