251 to 275 of 1,085 Senior Developer Jobs

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 … 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 More ❯

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 … 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 More ❯

matters By playing this video you consent to Google/YouTube processing your data and using cookies Learn more . Position Description: CGI has an immediate need for a Senior Python Developer to join our team. This is an exciting opportunity to work in a fast-paced team environment supporting one of the largest leaders in the secondary … in 40 countries and over 5k+ loyal Clients who are leveraging our end-to-end services across the globe. Your future duties and responsibilities: We are looking for Python developer with AWS Development expertise to join our team. Experience in full life cycle application/system development. Experience developing in distributed application environments (Database, Transaction Management). Experience writing More ❯

the Republic of Ireland. Mandatory Requirements (Pass/Fail): ü Experience Level: The candidate must have more than 7 years of relevant Java/JEE Development experience at a senior level. ü Availability: The candidate must be available to commence work from 3rd November 2025. ü English Language Proficiency: The candidate must be fluent in both spoken and written More ❯

The Role: We're looking for an experienced backend Software Developer with strong programming, analytical & problem-solving skills, as well as an understanding of the methodologies that drive scalable, secure software development. Key Responsibilities: Participating in all phases of software development - including design, implementation, testing, code review and documentation Actively seek ways to improve business software processes and interactions. More ❯

Job Purpose Are you a talented C developer with a passion for writing highly scalable and performant code? We're seeking a motivated developer to help shape the future of our industry leading RWS XPP Publishing software. As a key member of our globally distributed agile team, you'll contribute to the design and development of the XPP More ❯

proven experience supporting missions in cyber and space defense, space exploration, hypersonic and nuclear deterrence and warfighter readiness. Visit for more details. Responsibilities Arcfield is looking for a Software Developer to develop, maintain, and enhance software and/or web services according to the Agile framework and user-centered design methodologies. Duties include but are not limited to the … and/or projects within the Intelligence Community. An active certification related to software engineering or development, e.g., IEEE's Certified Software Development Professional (CSDP), Microsoft's Certified Solutions Developer (MCSD), or Oracle's Application Developer. Experience with systems in AWS cloud platforms and hosting requirements. Knowledge and or experience with the following technologies: Administration/Integration Tools: Jxplorer More ❯

Creatively: Work hand-in-hand with our talented UI/UX team to transform innovative designs into intuitive, responsive applications that users love. Requirements You have as a frontend developer and very good knowledge of development with Svelte, Vue.js, React or another comparable framework. Bonus: Experience with the AWS Cloud, REST, Node.js, Websockets and your own UI components (HTML More ❯

Full Stack Engineer - AI Health Tech London, hybrid 3 days a week on site £80,000 - £100,000 + Equity Looking to work on something meaningful? I'm currently helping a mission-led health tech start-up who are using More ❯

a plus but not required. Comfortable working in a global team with colleagues across APAC, EMEA, and North America. Strong communication skills; able to interface across all levels from senior leadership to engineers and stakeholders. Able to collaborate effectively with people from different cultural and technical backgrounds, aligning tech decisions with business goals. Life @ Empowered to think big. Try More ❯

Overview Citi is a world-leading global bank. We have approximately 200 million customer accounts and a presence in more than 160 countries and jurisdictions worldwide. We provide consumers, corporations, governments, and institutions with a broad range of financial products More ❯

Our mission is to dominate the betting and gaming industry on a global scale and we need the very best Tech talent to help us achieve this. We recently migrated all of our customers onto our very own proprietary platform More ❯

Eagle Integrated Services, LLC (EIS) is seeking Software Development support for client at Aberdeen Proving Ground (APG), Maryland. ACTIVE SECRET CLEARANCE REQUIRED We are seeking a Software Developer to support in the disciplines as listed, but not limited to, below: Develops and maintains working software that satisfies the customers needs. Analyzes job tasks, organizational structure and user requirements to More ❯

is dedicated to your personal and professional development. Together, we can drive meaningful change, spark innovation, and achieve extraordinary milestones. Kentro is hiring for a cleared Software/Web Developer to support the National Geospatial-Intelligence Agency. Responsibilities: Support business processes that are located on class and unclass networks. Use COTS (ColdFusion), open source, freeware (Python, JavaScript, AngularJS, JavaScript More ❯

Senior PHP Developer £65,000 + benefits Chester (hybrid) Hyperloop Recruitment are working with a cutting-edge software scale-up based in Chester who are looking for a Senior PHP Developer to join their growing team, on a hybrid working basis. The successful candidate will be an experienced and talented backend developer, capable of using … up during a period of major growth, working with a small yet highly proficient team of backend developers. Tech stack: Minimum 5 years' commercial experience as a backend web developer PHP frameworks (Laravel and/or Symfony) MVC MySQL HTML5/CSS3 JavaScript Test driven development experience AWS (EC2, Lambdas, S3) Version Control (Git) Any React/Node.js/ More ❯

Senior JavaScript Developer/Technical Lead (JavaScript Angular SaaS) Reigate/WFH to £120k Are you a senior Front End Engineer with strong JavaScript skills combined with technical leadership experience? You could be progressing your career in a hands-on leadership role at a global FinTech with flexible working and a range of perks and benefits including … continual professional development. As a Senior JavaScript Developer/Technical Lead you'll be the most senior Front End Developer in the UK working on a new AI driven product suite in collaboration with the team in Canada. You'll design and develop engaging front ends/UIs for SaaS solutions working with modern Angular within … have experience of working with C# backends and a good understanding of Azure You have advanced stakeholder communication and collaboration skills What's in it for you: As a Senior JavaScript Developer/Technical Lead you will earn a competitive package: Salary to £120k Bonus (c20%) 25 days holiday (and ability to buy more) Pension, Health Care, Life More ❯

Senior C# Developer/Software Engineer (Windows Desktop Trading Systems) London to £140k Are you a Senior C# Developer with strong Windows desktop development skills combined with banking/financial services experience? You could be progressing your career at a Hedge Fund with over $10 billion under management. As a Senior C# Developer you … desktop applications and design and implementation of scalable, service orientated architectures (SOA) but will also gain exposure to web applications using React and/or Angular. This is a senior, hands-on position, you'll collaborate with colleagues in the US and Canada and be the sole resource on these systems for the UK. Location/WFH: You'll … and cloud computing You have excellent communication and stakeholder management skills You're degree educated in Computer Science or similar discipline What's in it for you: As a Senior C# Developer/Software Engineer you will earn a competitive package: Salary to £140k + bonus Pension and Private Healthcare Hybrid working (x3 days in London office) Impactful More ❯

Senior Java Developer/Software Engineer London/WFH to £130k Are you a Java technologist who enjoys building systems from scratch? You could be progressing your career, in a senior, impactful role at a global prime broker that is replacing the legacy infrastructure used across capital markets with a new cloud-native clearing and custody system … designed for today's complex global markets. The company is experiencing great success and is expanding into the UK. As a Senior Java Developer you will take ownership of building a brand new Equity SWAPS platform for the UK, primarily using Java with a focus on backend development but also with some React UI work. You'll be … an understanding of Capital Markets, Prime Brokerage or Equity Swaps You are degree educated in Computer Science or closely related discipline What's in it for you: As a Senior Java Developer/Software Engineer you receive a competitive package: Salary to £130k Equity Pension Hybrid working Influential role at a growing company with excellent career progression and More ❯

Senior BI Developer - Hybrid Working About the Role We are seeking a Senior Business Intelligence (BI) Developer to join a leading Lloyd's market syndicate. This is an exciting opportunity to play a pivotal role in transforming data into critical insights that drive business performance and strategic decision-making within a dynamic and fast-paced insurance … environment. You will be responsible for designing, developing, and maintaining end-to-end BI solutions using Power BI , DAX , and SQL , working closely with underwriters, actuaries, finance, and senior stakeholders. Key Responsibilities Design, build and optimize interactive Power BI dashboards and reports tailored to the Lloyd's insurance market. Working specifically with underwriting teams to support their BI processes. … governance and quality initiatives to ensure data integrity and consistency. Mentor junior developers and contribute to BI strategy and best practices. Skills & Experience Required Proven experience as a BI Developer, ideally within the Lloyd's or London Insurance Market . Advanced proficiency in Power BI , DAX , and SQL . Experience working with Underwriting teams. Strong understanding of insurance-specific More ❯

Senior BI Developer - Hybrid Working About the Role We are seeking a Senior Business Intelligence (BI) Developer to join a leading Lloyd's market syndicate. This is an exciting opportunity to play a pivotal role in transforming data into critical insights that drive business performance and strategic decision-making within a dynamic and fast-paced insurance … environment. You will be responsible for designing, developing, and maintaining end-to-end BI solutions using Power BI , DAX , and SQL , working closely with underwriters, actuaries, finance, and senior stakeholders. Key Responsibilities Design, build and optimize interactive Power BI dashboards and reports tailored to the Lloyd's insurance market. Working specifically with underwriting teams to support their BI processes. … governance and quality initiatives to ensure data integrity and consistency. Mentor junior developers and contribute to BI strategy and best practices. Skills & Experience Required Proven experience as a BI Developer, ideally within the Lloyd's or London Insurance Market . Advanced proficiency in Power BI , DAX , and SQL . Experience working with Underwriting teams. Strong understanding of insurance-specific More ❯

Senior Dynamics Developer - Northampton (Hybrid - 2 days a week) Our client are an established D365 CRM End User who are seeking a Senior Dynamics Developer to play a critical role in the design, development and delivery of D365 Customer Engagement. You'll be required to work closely with stakeholders across the business, driving the technical evolution More ❯

Senior Developer - Backend C# Remote initially then hybrid – Horsham (3 Days Office/2 Remote) Profectus Recruitment is proud to be working exclusively with a leading technology client as they continue to scale their in-house engineering function. We are currently seeking a highly capable Senior Back-End Developer with a strong foundation in C# and More ❯

Senior Developer £50,000 - £60,000 Bromsgrove (hybrid) Our client requires a highly experience Senior Engineer to join their growing team. You will take a key role in maintaining and evolving the legacy on-premises software solutions. This role requires deep knowledge of C#, Winforms and PostgreSQL, with a strong understanding of how to modernise and support … If you’re ready for your next challenge and want the opportunity to shape the future of our client’s organisation and have the experience and skills of a Senior Engineer, apply today! Our client offers the flexibility of hybrid working and an excellent benefits package. Due to the number of applications, we can only respond to candidates that More ❯

Senior C# Developer - Physics Location: East Midlands Industry: IT Salary: £55,000 - £75,000 per annum + Healthcare, Pension, Hybrid working Posted: 30/05/2025 Description We are seeking a Senior C# Developer with expertise in .NET Core, physics, and engineering to join an award-winning UK-based technology company specializing in data-driven More ❯

CK Group are recruiting for a Senior Full Stack Developer, to join a company in the pharmaceutical industry, on a contract basis for 12 months. Salary: £31.49 - £41.99 per hour PAYE. Senior Full Stack Developer Role: Leverage expertise across frontend, backend, databases, and DevOps to optimize systems by writing clean code. Take ownership of end-to … be afraid to dig deep and learn new things all the time. Your Background : Proficiency, expertise and productivity in at least one of Java, NodeJS, ReactJS or React-Native. Developer experience within the pharmaceutical or healthcare industry would be highly desirable. Demonstrable understanding of best practices in software engineering, including testing and continuous integration. Familiarity with Linux environment. Understanding More ❯