1 to 25 of 55 Senior Applications Developer Jobs

technology implementation, integration, optimization and customization. We enable some of the most well-known companies, nonprofits and federal agencies in the United States to intelligently plan and develop their applications, modernize their infrastructure and manage their data. We are currently seeking an experienced, skilled, and passionate Senior Web Application Developer to support development projects at … solutions. Ideal candidates possess the technology skills, curiosity, and experience to drive web development through all parts of the application lifecycle. Role and Responsibilities: Maintain, modernize, and refactor web applications for improved scalability, performance, and maintainability. Develop clean, efficient, and modular code following best practices in React.js, Node.js, JavaScript, HTML, and CSS. Refactor and optimize legacy code, improving readability … reducing technical debt, and enhancing maintainability. Enhance data-driven applications, building dashboards, automated workflows, and visualizations. Optimize SQL queries and database performance while ensuring security and best practices (SQL Server and Oracle). Collaborate with stakeholders to define technical requirements and implement scalable, modern solutions. Work within Agile methodologies (Scrum, XP, Kanban) to deliver high-quality solutions efficiently. Conduct More ❯

Title: Advanced Sr IT Applications Developer KBR is a global provider of differentiated, professional services and technologies delivered across a wide government, defense, and industrial base. Drawing from its rich 100-year history and culture of innovation and mission focus, KBR creates sustainable value by combining engineering, technical, and scientific expertise with its full life cycle capabilities … to date with the latest web development trends. This role involves providing application software development services or technical support for defined projects. Responsibilities include developing program logic for new applications, modifying and analyzing existing applications, coding, testing, debugging, documenting, implementing, and maintaining software applications. The role requires experience and knowledge of standard concepts within the field, with core … Job Responsibilities Analyzing possible solutions using standard procedures while developing advanced skills Performing assignments requiring experience and knowledge of standard concepts within their field Developing program logic for new applications, modifying, analyzing existing logic, coding, testing, debugging, documenting, implementing, and maintaining software applications Providing application software development services or technical support for defined projects Making key system design More ❯

SUMMARY Reporting to the R&D Programme Manager, the Lead Software Application Developer will guide the software development team in creating and maintaining scalable, high-performance software applications that meet the needs of the business, powering it’s Mass Spectroscopy analytical instrumentation. This role requires hands-on development skills, leadership and mentoring capabilities, a deep understanding of … delivery of functionality within project timeframes and scope. • Collaborate with project managers to identify and mitigate potential risks in the development cycle. • Architect, design and develop high-quality, scalable applications using C#, .NET framework and related technologies. • Maintain and enhance existing applications. • Write clean, maintainable, and efficient code in alignment with best practice and coding standards. • Perform code reviews … to ensure quality and adherence to standards. • Ensure software applications are thoroughly tested and perform as expected across different environments. • Provide leadership and technical guidance for resolution of complex technical issues and reported bugs. • Provide technical guidance and recommendations on tools, frameworks, and technologies to optimize the software development processes. • Stay updated on the latest industry trends, programming languages More ❯

Hiring in Canada: Senior Web Application Developer 2 days ago Be among the first 25 applicants Flynn Group of Companies , North America’s leading building envelope contractor, is looking to hire a Senior Web Application Developer to work in our Toronto, Canada office. This is a permanent relocation opportunity to Canada. Our … work environment Our Tech Stack Our primary tech stack includes .NET (C#) hosted in Amazon AWS and Microsoft Azure. We use MongoDB, MySQL, and SQL Server for our databases. Applications are built in ASP.NET and Angular for web apps, with Java, Swift, and Xamarin for mobile apps. Responsibilities Design, architect, develop, and conduct code reviews for our key applications … hours support as needed Participate in a rotating weekly on-call schedule What We Are Seeking 10+ years of recent experience, including at least 5 years in a senior web developer role Post-secondary education in Computer Science/IT or related field Experience with .NET/.NET Framework and C# Experience with Entity Framework Experience More ❯

Join to apply for the Senior Applications Developer role at Essex County Council 1 day ago Be among the first 25 applicants Join to apply for the Senior Applications Developer role at Essex County Council Get AI-powered advice on this job and more exclusive features. About The Role Senior … Job function Engineering and Information Technology Industries Government Administration Referrals increase your chances of interviewing at Essex County Council by 2x Get notified about new Senior Application Developer jobs in Chelmsford, England, United Kingdom . Romford, England, United Kingdom 2 weeks ago Basildon, England, United Kingdom 2 months ago South Weald, England, United Kingdom 4 months … IR35) Ilford, England, United Kingdom 2 weeks ago Basildon, England, United Kingdom 1 week ago Dartford, England, United Kingdom 1 day ago Senior IT Database and Application Developer Ilford, England, United Kingdom 2 weeks ago We're unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of More ❯

in our core values. We're a high-energy, high-growth team and we love to win. Senior Application Developer The Senior Application Developer will design, develop, refactor, enhance, test and evaluate, and support software applications currently hosted on-premises to be hosted within the AWS GovCloud instance compliant with FBI … appropriate solution. Candidates shall be skilled in multiple web application languages, reverse engineering, and have a strong background in building scalable, user intuitive, high-quality and high performing web applications ranging from a high mid-level and a senior. The Electronic Surveillance (ELSUR) Logistics Technology Unit (ELTU) application enhancements or modifications may include business and process changes to ELTU … applications/systems as well as coordination with other integrated and non-ELTU software systems. The contractor shall work alongside infrastructure, development, and managerial team members to troubleshoot and resolve issues. In this role, you will: Support the Government's effort to obtain and maintain an authority-to- operate (ATO) and protect the security posture of the program systems More ❯

Hiring in Canada: Senior Web Application Developer Hiring in Canada: Senior Web Application Developer 2 days ago Be among the first 25 applicants Flynn Group of Companies , North America’s leading building envelope contractor is looking to hire a Sr. Web Application Developer to work in our Toronto, Canada office. … mix of Java, Swift, and Xamarin for our mobile apps. Responsibilities Will be a core member of the team to design, architect, develop, code reviews and test our key applications Design new application features and integrations in collaboration with team members to deliver complex changes Design and implement scalable and resilient cloud solutions with security and disaster recovery in … as required Participate in a rotating weekly on-call schedule What We Are Seeking 10+ years of recent experience, with at least 5 years in a Sr. Web Developer or similar senior role Post-secondary education in Computer Science/IT or related field Experience in .NET/.NET Framework and C# Experience in entity framework More ❯

Flynn Group of Companies , North America's leading building envelope contractor, is looking to hire a Sr. Web Application Developer to work in our Toronto, Canada office. This is a permanent relocation opportunity to relocate to Canada. In-house, licensed Immigration team at Flynn will assist you with: Work permit application (at no cost to you) Permits for … work environment Our Tech Stack Our primary tech stack includes .NET (C#) hosted in Amazon AWS and Microsoft Azure. We use MongoDB, MySQL, and SQL Server for our databases. Applications are built in ASP.NET and Angular for web apps, with Java, Swift, and Xamarin for mobile apps. Responsibilities Design, architect, develop, review code, and test our key applications … support as required Participate in rotating weekly on-call schedules What We Are Seeking 10+ years of recent experience, including at least 5 years in a Sr. Web Developer or similar senior role Post-secondary education in Computer Science/IT or related field Experience in .NET/.NET Framework and C# Experience with Entity Framework More ❯

Jobs Senior Applications Developer Apply Now Salary Up to £500 per day Expires 08/07/2025 Location England, Essex, Chelmsford Job Type Interim Senior Applications Developer Contract: 4 Months, Temporary Working Hours: Full-Time Salary: £384.14 PAYE/£500.00 Umbrella, daily rate Closing Date: Monday 7th July … Understanding of application lifecycle management (ALM) in Power Platform Knowledge of JSON, Power Fx, JavaScript, HTML and SQL. Qualification or high level of demonstrable capability with relevant vendor business applications Desirable: Able to demonstrate a clear understanding of, and capability to work within, relevant ICT related standards including HMG Security Policy Framework, IITIL V3, ISO/IEC 38500, ISO … to our success. If you have any queries regarding this role, or require anything further, please email OR To apply please click the Apply Now link below. Apply forSenior Applications Developer This role expires08/07/2025. Apply Now Help us break the news - share your information, opinion or analysis word word word word word word More ❯

Flynn Group of Companies , North America's leading building envelope contractor is looking to hire a Sr. Web Application Developer to work in our Toronto, Canada office. This is a permanent relocation opportunity to relocate to Canada. In-house, licensed Immigration team at Flynn who will assist you with the following: -Work permit application (at no cost to … mix of Java, Swift, and Xamarin for our mobile apps. Responsibilities Will be a core member of the team to design, architect, develop, code reviews and test our key applications Design new application features and integrations in collaboration with team members to deliver complex changes Design and implement scalable and resilient cloud solutions with security and disaster recovery in … as required Participate in a rotating weekly on-call schedule What we are Seeking 10+ years of recent experience, with at least 5 years in a Sr. Web Developer or similar senior role Post-secondary education in Computer Science/IT or related field Experience in .NET/.NET Framework and C# Experience in entity framework More ❯

Senior Applications Developer Contract: 4 Months, Temporary Working Hours: Full-Time Salary: £384.14 PAYE/£500.00 Umbrella, daily rate Closing Date: Monday 7th July 2025 Working Arrangements: Hybrid Location: Chelmsford, Essex About the role Essex County Council is ambitious and by 2030 it will be one of the most forward looking, effective and financially sustainable … by experience in a relevant subject. • Hold relevant Microsoft certifications such as PL-100: Power Platform App Maker, PL-200: Power Platform Functional Consultant, PL-400: Power Platform Developer, PL-600: Power Platform Solution Architect. • Proven experience with Microsoft Power Automate Desktop and DevOps. • Solid understanding of Microsoft 365, Dataverse, and Azure Services … Understanding of application lifecycle management (ALM) in Power Platform • Knowledge of JSON, Power Fx, JavaScript, HTML and SQL. • Qualification or high level of demonstrable capability with relevant vendor business applications Desirable: • Able to demonstrate a clear understanding of, and capability to work within, relevant ICT related standards including HMG Security Policy Framework, IITIL V3, ISO/IEC 38500, ISO More ❯

by experience in a relevant subject. Hold relevant Microsoft certifications such as PL-100: Power Platform App Maker, PL-200: Power Platform Functional Consultant, PL-400: Power Platform Developer, PL-600: Power Platform Solution Architect. Proven experience with Microsoft Power Automate Desktop and DevOps. Solid understanding of Microsoft 365, Dataverse, and Azure Services … Understanding of application lifecycle management (ALM) in Power Platform Knowledge of JSON, Power Fx, JavaScript, HTML and SQL. Qualification or high level of demonstrable capability with relevant vendor business applications Desirable: Able to demonstrate a clear understanding of, and capability to work within, relevant ICT related standards including HMG Security Policy Framework, IITIL V3, ISO/IEC 38500, ISO More ❯

Hours: Full-Time Start Date: ASAP Closing Date: Monday 7th July 2025 Clearance Required: DBS Check A high-profile public sector organisation is seeking an experienced Senior Applications Developer to join its digital delivery team on a temporary basis. This is a fantastic opportunity for a senior developer with strong Microsoft … Must be willing to undergo and pass a DBS check A strong commitment to inclusive working practices and public service values If you are a passionate and capable developer looking to make an impact in a large, forward-thinking public organisation, wed love to hear from you. Please apply with your updated CV by Monday 7th July 2025. More ❯

Hours: Full-Time Start Date: ASAP Closing Date: Monday 7th July 2025 Clearance Required: DBS Check A high-profile public sector organisation is seeking an experienced Senior Applications Developer to join its digital delivery team on a temporary basis. This is a fantastic opportunity for a senior developer with strong Microsoft … Must be willing to undergo and pass a DBS check A strong commitment to inclusive working practices and public service values If you are a passionate and capable developer looking to make an impact in a large, forward-thinking public organisation, wed love to hear from you. Please apply with your updated CV by Monday 7th July 2025. More ❯

Hours: Full-Time Start Date: ASAP Closing Date: Monday 7th July 2025 Clearance Required: DBS Check A high-profile public sector organisation is seeking an experienced Senior Applications Developer to join its digital delivery team on a temporary basis. This is a fantastic opportunity for a senior developer with strong Microsoft … Must be willing to undergo and pass a DBS check A strong commitment to inclusive working practices and public service values If you are a passionate and capable developer looking to make an impact in a large, forward-thinking public organisation, wed love to hear from you. Please apply with your updated CV by Monday 7th July 2025. More ❯

capable of achieving incredible things. We're looking for an experienced Senior React Native Developer to join our small, focused Scrum team working on mobile applications for both iOS and Android. You'll be responsible for building new apps and maintaining existing ones using React Native with TypeScript and GraphQL. You'll need a strong … is a temporary role, likely lasting around 6 months, with a view to extending beyond this if needed. WHAT YOU'LL DO: Design, develop, and maintain cross-platform mobile applications using React Native Build new applications and features, while supporting and improving existing apps Consume GraphQL APIs in the mobile stack Collaborate with designers and backend engineers to … GraphQL APIs Good knowledge of iOS (Swift/Objective-C) and Android (Kotlin/Java) Native Development for platform-specific customisation Proven track record of delivering high-quality mobile applications to production Experience working in a Scrum/Agile team environment Familiarity with mobile testing, debugging, and performance optimisation tools Clear understanding of app publishing processes on both App More ❯

Basingstoke/Woking (1 day per week on-site, no travel required) IR35 Status : Outside Daily Rate : £600 (Limited Company) We are seeking an experienced Senior Application Developer specialising in Tricentis Tosca Automation to lead the design, implementation, and initial operationalisation of a test automation solution within a secure environment. This role requires active SC clearance … into software delivery processes. Work closely with the in-house testing team to ensure alignment with business needs. Proof of Concept Creation : Develop automated test cases for two selected applications, comprising approximately 75 test scenarios. Transition existing manual test cases into automated tests. Applications include an in-house .NET web application with an SQL database backend and a … with Tricentis Tosca Automation, including server design and deployment. Demonstrated ability to produce detailed technical documentation. Strong understanding of Azure infrastructure and secure system implementation. Familiarity with .NET web applications and SQL databases, as well as SaaS environments. Proven experience in developing automated test libraries and transitioning manual tests to automated processes. Strong communication skills for delivering tailored training More ❯

Job Opportunity: Senior Applications Developer - D365 & Power Apps We are looking for a Senior Applications Developer with deep expertise in Microsoft Dynamics 365 , Power Platform , and low-code development . You will play a key role in designing, developing, customising, and supporting a portfolio of business-critical applications. In this … collaborate with cross-functional Agile teams and business stakeholders to deliver scalable, user-centric solutions that drive business value. Key Responsibilities: Support & Training: Provide technical and functional support for applications built on Microsoft Dynamics 365 and PowerApps. Deliver user training and ensure adoption of solutions. Solution Development: Design, configure, and develop low-code solutions aligned with business needs using … Agile Delivery: Lead the end-to-end life-cycle of development projects, including planning, scheduling, testing, implementation, and post-release support. System Integration: Collaborate with technical teams to integrate applications and services through APIs and web services. Documentation: Create comprehensive user guides, functional documentation, and technical documentation for all releases. Collaboration: Work closely with Agile Leads and Business Product More ❯

Building a sustainable tomorrow BAM UK & I are looking for a Senior Applications Developer to be hybrid from ether Camberley, Hemel Hempstead or Central London. We are looking for an experienced person with expertise on Microsoft Dynamics 365 and Microsoft Power Platforms to join our Application Services Team. This role is pivotal in collaborating with … Analysts to drive system improvements, lead development initiatives, and support project work. Your mission • Provide technical and functional support, along with user training, for a selected portfolio of BAM applications built on Microsoft Dynamics 365 and PowerApps. • Developing & Customizing Solutions - Design, configure and develop solutions (Low code, Power Platform, MS Dynamics 365) to align with business needs, following best … knowledge sharing, fostering best practices, and refining tools and methodologies within the team. Who are we looking for? We are seeking a highly skilled and experienced Senior Applications Developer with expertise in Low code development , Microsoft Dynamics 365 and Power Platform, along with a strong background in Agile methodologies. The ideal candidate will have: Technical More ❯

Senior Python/Counterparty Credit Risk Application Developer - VP - LONDON Join to apply for the Senior Python/Counterparty Credit Risk Application Developer - VP - LONDON role at Citi Senior Python/Counterparty Credit Risk Application Developer - VP - LONDON 1 week ago Be among the first 25 applicants Join … to apply for the Senior Python/Counterparty Credit Risk Application Developer - VP - LONDON role at Citi The Analytical Calculation Engine (ACE) Development Team is a group within Citi Financial Risk Technology, responsible for developing and implementing the applications used for derivatives credit risk and exposure calculations Firm-wide. The team's primary focus is … development, testing, deployment, and maintenance of the production derivatives credit risk application, used for internal risk management and regulatory capital purposes. The Counterparty Credit Risk Senior Application Developer position is a senior role that will interface closely with Quant and Front Office technology teams to integrate pricing models and workflow enhancements within the ACE More ❯

The Analytical Calculation Engine (ACE) Development Team is a group within Citi Financial Risk Technology, responsible for developing and implementing the applications used for derivatives credit risk and exposure calculations Firm-wide. The team's primary focus is the … development, testing, deployment, and maintenance of the production derivatives credit risk application, used for internal risk management and regulatory capital purposes. The Counterparty Credit Risk Senior Application Developer position is a senior role that will interface closely with Quant and Front Office technology teams to integrate pricing models and workflow enhancements within the ACE … There will be exposure to a wide range of technological frameworks, including distributed computing architecture. The role will involve tasks such as: Developing and maintaining the Counterparty Credit Risk applications, leveraging in-house Python and C++ model libraries. Supporting and improving CI/CD (build, testing and release management) of the credit risk application. Contributing to the codebase to More ❯

delivering cutting-edge solutions and ensuring exceptional customer experiences in the fast-paced world of web hosting and development. Join us in shaping the future of web technology. Senior PHP/Web Application Developer We are seeking a Senior PHP/Web Application Developer to join our team and take on the … and expertise to product managers and staff members. Writing technical and non-technical specifications and documenting procedures. Resolving identified issues related to PHP development for various users, from senior managers to technical personnel. Heading responsibility to evaluate, design, develop, and assist application systems. Maintaining and managing complete documentation. Guiding business decisions from a technical perspective, including performance, reliability … Experience in creating and maintaining high-quality architecture and design documents, including feature specifications, design specifications, flow diagrams, and process diagrams. Experience in designing/architecting/developing web applications targeting enterprise users. Understanding of SDLC and methodologies. Ability to conceptualize requirements and handle web development projects independently. Good experience in designing and developing client-server and web-based More ❯

Senior Application Developer - Data page is loaded Senior Application Developer - Data Bewerben locations London, United Kingdom time type Full time posted on Gestern ausgeschrieben job requisition id J-047731 IDEXX is looking for a Senior Data Engineer to join the Veterinary Software team in London! This is an exciting opportunity … and secure movement of legacy and modern systems. As a senior engineer, you'll design, develop, and optimise scalable and efficient data pipelines integrating PHP, and C applications using .NET framework backend services and React frontends. You'll utilise tools such as Terraform for infrastructure-as-code ( IaC ), AWS (Lambda, EC2, EKS, Step Functions, VPC etc.) for … of Git, CI/CD pipelines, and containerization (Docker/Kubernetes). Experience working in environments with AI/ML components or interest in learning data workflows for ML applications . Bonus if you have e xposure to Kafka, Spark, or Flink . Experience with data compliance regulations (GDPR). What you can expect from us: Salary More ❯

Senior Mobile and Wallet Android App Developer - GDS - G7 The Government Digital Service (GDS) is the digital centre of government - we are responsible for setting, leading and delivering the vision for a modern digital government. Our priorities are to drive a modern digital government, by: joining up public sector services harnessing the power of AI for … solve some of the nation's highest-priority digital challenges, helping millions of people access services they need You'll join the GOV.UK One Login programme as a Senior Android Developer. You'll build and maintain the GOV.UK One Login Android app, as part of a multidisciplinary team. The app is written in Kotlin with XML layouts and … Jetpack Compose, with support going back to Android 10. As a SeniorAndroid App Developer,you'll: work as part of a multi-disciplinary agile team, getting involved with every part of the lifecycle of the application, from user research to releasing the application build accessible Android apps, taking responsibility for the quality of code you produce build automated More ❯

Senior Mobile and Wallet Android App Developer - GDS - G7 The Government Digital Service (GDS) is the digital centre of government — we are responsible for setting, leading and delivering the vision for a modern digital government. Our priorities are to drive a modern digital government, by: joining up public sector services harnessing the power of AI for … solve some of the nation’s highest-priority digital challenges, helping millions of people access services they need You’ll join the GOV.UK One Login programme as a Senior Android Developer. You’ll build and maintain the GOV.UK One Login Android app, as part of a multidisciplinary team. The app is written in Kotlin with XML layouts and … Jetpack Compose, with support going back to Android 10. As a SeniorAndroid App Developer,you’ll: work as part of a multi-disciplinary agile team, getting involved with every part of the lifecycle of the application, from user research to releasing the application build accessible Android apps, taking responsibility for the quality of code you produce build automated More ❯