226 to 250 of 1,085 Senior Developer Jobs

Senior Low Latency Java Developer Contract Length: 12 months AND Introduction At AND, we accelerate the development of digital capabilities. In practice, that means helping ambitious leaders and organisations build the teams, products, processes and even operational structures they need to close the digital skills gap within their organisation today, so that they thrive tomorrow. Clients rely on … a deeply-held belief that digital products and technology alone won't transform a business or save the world: it's the people that count. About you As a Senior Low Latency Java Developer, you champion software quality and technical vision for AND and our clients. As a result, you will need to be able to: Work on More ❯

Digital Delivery Senior Developer - IPO - SEO £46,262 - £59,906 please read allowances on the Civil Service Jobs link Published on Full-time (Permanent) £46,262 - £59,906 please read allowances on the Civil Service Jobs link Published on 26 June 2025 Deadline 7 July 2025 Location Newport, NP10 8QQ About the job Job summary Please note: Applicants … If reviewing via a screen reader, please note that the Job summary, Job description, Person specification, Benefits and Things you need to know sections have been emphasised Digital Delivery Senior Developer The IPO is a modern organisation which depends on its IT services to operate and innovate effectively. In order to provide up to date services to our … services. You will be expected to be proactive and take accountability for assigned deliverables. The role will also require the investigation, diagnosis and fix of any system issues. A Senior Developer is expected to contribute to the technical strategy for the department. As a multi-skilled individual, you will have the opportunities to develop and mature skills in More ❯

Senior Full Stack Web Developer Location: Central Cardiff Salary: £50-60K plus excellent benefits package Main Purpose of the Role As a Senior Full Stack Web Developer, you will be instrumental in evolving our clients digital platforms. This includes leading end-to-end development projects, mentoring junior developers, and collaborating across departments to deliver robust More ❯

Senior Developer - DB Marshall Space Flight Center (MSFC) Huntsville, AL HX5 is an award-winning provider of engineering, research and development, and technical services to clients such as NASA and the Department of Defense. Founded in 2004, HX5 is a fast-growing veteran- and woman-owned company with locations nationwide. HX5 is currently seeking a Senior Developer - DB to join our team at Marshall Space Flight Center. Essential Duties and Responsibilities: The Software Developer will work with the commanding and database production (C&DB) team to support the Payload Operations Integration Center (POIC) International Space Station (ISS) and Space Launch System (SLS) mission ground systems hosted in the Huntsville Operations Support Center (HOSC). The More ❯

Senior Full Stack Web Developer Location: Central Cardiff Salary: £50-60K plus excellent benefits package Main Purpose of the Role As a Senior Full Stack Web Developer, you will be instrumental in evolving our clients digital platforms. This includes leading end-to-end development projects, mentoring junior developers, and collaborating across departments to deliver robust More ❯

Insight Investment is looking for a Senior Developer to join the Individual Retirement Solutions team in Manchester. The team is seeking a Senior Developer with expertise in .NET and Python to design, develop, and maintain our Retirement Pathway products. The role involves working within a collaborative, cross-functional team to create a secure, user-friendly suite More ❯

Senior .NET/C# Developer Oracle to PostgreSQL Migration: Our client is embarking on a strategic transformation of a legacy enterprise platform, rebuilding a long-standing PHP and Oracle-based system into a .NET (C#) and PostgreSQL architecture. Seeking talented developers who are excited to work at the intersection of legacy systems, modern architecture and cutting-edge development More ❯

Job Title: Senior Backend Developer Location: Liverpool City Centre, Hybrid working available Salary: Up to £75,000 per annum depending on experience Job Type: Permanent, Full Time Hours: 37.5 hours per week, Monday to Friday, 9am to 5:30pm The Acorn Group are looking for a highly skilled, experienced Backend developer to join our team. We are … looking for a developer that has experience developing scalable applications using the latest .Net Technologies. You will have the chance to work on complex projects involving large datasets, message bus architectures, and streaming large sets of data. What you'll be doing: Application Development: Design, develop, and maintain robust applications using NET 8 and C#. Implement and manage microservices … until checks are completed to a satisfactory standard. Please click the ' APPLY' button to submit your CV for this role. Candidates with experience or relevant job titles of; Software Developer, Senior System Developer, Software Engineer, Systems Developer, Software Tester, Backend Services, API's, API, Application Programming Interface may also be considered for this role. More ❯

Job Title: Senior Backend Developer Location: Liverpool City Centre, Hybrid working available Salary: Up to £75,000 per annum depending on experience Job Type: Permanent, Full Time Hours: 37.5 hours per week, Monday to Friday, 9am to 5:30pm The Acorn Group are looking for a highly skilled, experienced Backend developer to join our team. We are … looking for a developer that has experience developing scalable applications using the latest .Net Technologies. You will have the chance to work on complex projects involving large datasets, message bus architectures, and streaming large sets of data. What you'll be doing: Application Development: Design, develop, and maintain robust applications using NET 8 and C#. Implement and manage microservices … until checks are completed to a satisfactory standard. Please click the ' APPLY' button to submit your CV for this role. Candidates with experience or relevant job titles of; Software Developer, Senior System Developer, Software Engineer, Systems Developer, Software Tester, Backend Services, API's, API, Application Programming Interface may also be considered for this role. More ❯

Web Developer McLean, VA. Active TS/SCI with Polygraph is required. Cohere is seeking a Senior Web Developer to support our client with design, creation, deployment, and maintenance of multiple web sites supporting the Intelligence Community. You will also be establishing and maintaining an effective and collaborative relationship with customers, end users, and other team members. … Online, O365) by maintaining large lists and libraries, permissions and site structures, custom workflows, and Microsoft best practices. Develop and integrate multiple data sources to provide customized Dashboards for senior management and government clients. You Will Bring These Qualifications: Active TS/SCI with Polygraph is required. Bachelor's degree preferably in an IT related field 6 years of … own contracting business. If you have a background in coding and computer security and want to take your career to the next level, with the ability to learn from senior engineers invested in your success, apply today More ❯

that people actually want. We are an early stage startup launched in April 2020, and are now looking for a new family member. Joining the Tech team as a Senior Frontend Developer is an opportunity to take a leading role in shaping the user-facing side of our platform and to build interfaces that elevate the experience of … experience deploying Next.js applications outside of Vercel-whether on custom Node.js servers, Docker containers, AWS, Google Cloud, or similar environments. While familiarity with our full stack is a plus, senior-level expertise with React and Next.js is non-negotiable, along with a strong desire to master our specific tech stack. As a Senior Frontend Developer you will … of learning and frontend craftsmanship. Propose and lead improvements in tooling, workflows, and architecture. Could you be the one? Minimum of 2-3 years of experience as a frontend developer, with a focus on web development. Thrives on complex implementations-whether that's building intricate interactions, smooth animations, or translating bold design into seamless experiences. Loves the puzzle-solving More ❯

Job Title: Lead Senior Specialist - Back-end .NET Developer - Fully Remote Job Overview: We are seeking a talented Lead Senior Specialist in Back-end .NET Development to join our client's dynamic Agile development team. This role is crucial in shaping strategic product modules, particularly the payroll calculation engine. The ideal candidate will possess a strong technical More ❯

Job Title: Lead Senior Specialist - Back-end .NET Developer - Fully Remote Job Overview: We are seeking a talented Lead Senior Specialist in Back-end .NET Development to join our client's dynamic Agile development team. This role is crucial in shaping strategic product modules, particularly the payroll calculation engine. The ideal candidate will possess a strong technical More ❯

I am currently recruiting on behalf of an end user who's looking for a Senior D365CE Developer to join their team on a permanent basis. It's a hybrid role, with a mix of office and home working. Please see below for more information: Some of the responsibilities: Be part of a development team involved in the More ❯

Job Number: R Software Developer, Senior The Opportunity: As a full stack developer, you can resolve a problem with a complete end-to-end solution in a fast, agile environment. If you're looking for the chance to not just develop sof tware, but to help create a system that will make a difference, we need you … on our team. We're looking for a developer like you with the skills needed to develop sof tware and systems from vision to production ready. This role is more than just coding. As a full stack developer at Booz Allen, you'll use your passion to learn new tools and techniques and identify needed system improvements. You More ❯

team is responsible for creating modern, resilient services and capabilities that will support the U.S. Government's critical space communications infrastructure for the next decade and beyond. As a Senior UI Software Developer, you will play a pivotal role in building a cutting-edge ground communications and data-transport platform for U.S. government satellites. You will design and … develop core platform services that enable secure, scalable, and efficient satellite operations. In this role, you will contribute as an individual developer while supporting technical decisions to ensure platform excellence. What you'll do: Build high-performance, secure, and well-tested web applications with a strong emphasis on automation and security Design, enhance, and refine APIs to improve communication More ❯

Senior Oracle Developer - Oracle to Migration Project Location: Nottingham/London - Hybrid Length: ASAP - Jan 2026 (6 months) Rate: £586 Hours: 9-6pm About the Project We are modernising a long-standing enterprise system built on PHP and Oracle, transitioning to a modern .NET architecture. A key focus of this transformation is the migration of a large More ❯

Senior Oracle Developer – Oracle to Migration Project Location: Nottingham/London - Hybrid Length: ASAP – Jan 2026 (6 months) Rate: £586 Hours: 9-6pm About the Project We are modernising a long-standing enterprise system built on PHP and Oracle, transitioning to a modern .NET architecture. A key focus of this transformation is the migration of a large More ❯

As a Senior Full-Stack Developer, you'll play a key role in shaping the future of Business Partner Transparency (BPT) within our osapiens HUB. This enterprise-grade platform helps companies comply with critical ESG regulations like: The German Supply Chain Due Diligence Act (LkSG) - ensuring suppliers uphold human rights and environmental standards. The Whistleblower Directive - providing secure More ❯

Senior Software Engineer/Full Stack/.NET/C#/Angular Exciting opportunity to share your knowledge and experience with more junior team members. You will have a pivotal role in the direction of key projects as well the opportunity to influence the technology direction of the company. Role Responsibilities With the growth plans there will be an More ❯

Over the years, we have experienced explosive growth - which means we need more rock stars to join our quest for total world domination. We are looking for an awesome Senior Java Backend Developer to join our growing team. The role isa hybrid based one in the UK (St Albans), Malta, or Gibraltar, fullyremote from EU is an option More ❯

offer a hybrid working policy, this role would require onsite visits to our London office around once or twice per month. About the Role We're looking for a Senior Fullstack Developer who can take features from concept to production with confidence. You'll have the real opportunity to own the full development lifecycle. Including planning the technical More ❯

Senior Software Engineer - Identity and Access Management As a seasoned Software Engineer, you'll play a key role on a team of innovators and technologists shaping the future of identity and access management (IAM). Your deep technical expertise and passion for design, analytics, development, coding, and testing will contribute to delivering secure, resilient, and high-quality solutions that … and supports long-term career development. With access to global resources and top-tier engineering talent, you'll be empowered to solve challenging problems and make a meaningful impact. Senior Software Engineer - Identity and Access Management As a seasoned Software Engineer, you'll play a key role on a team of innovators and technologists shaping the future of identity More ❯

family and provide opportunities to work with a purpose. We are committed to supporting your success in both your professional and personal lives. Position Overview We are seeking an Senior Application Developer who will focus on the development and enhancement support for existing applications as well as new development. Responsibilities Designing, programming/developing, and modifying software systems More ❯

operational costs, and ensure timely and accurate patient dosing. Endpoint is headquartered in Raleigh-Durham, North Carolina with offices across the United States, Europe, and Asia. Position Overview: The Senior Software Developer - AI will be instrumental in leveraging AI technologies to enhance business processes across the organization. This role involves understanding existing business workflows, identifying opportunities for AI More ❯