146 web application engineer jobs found

Join the DataAnnotation team and contribute to developing cutting-edge AI systems, while enjoying the flexibility of remote work and setting your own schedule. We are looking for a proficient Web Application Engineer to help advance AI development. As a member of DataAnnotation’s coding team, you’ll be part of a growing community of over 100,000 professionals — including front-end, back-end, full-stack, machine learning, and other engineers — who are driving real-world impact in AI development. Our platform offers an engaging blend of flexibility and challenge: you’ll work closely with state-of the art AI models to take on programming tasks that include creating and solving challenging coding problems, building beautiful apps with rich functionality, and synthesizing insights through data analysis and visualization. Your work directly contributes to refining intelligent systems that learn, adapt, and evolve. Some team members fit this work...

Join the DataAnnotation team and contribute to developing cutting-edge AI systems, while enjoying the flexibility of remote work and setting your own schedule. We are looking for a proficient Web Application Engineer to help advance AI development. As a member of DataAnnotation’s coding team, you’ll be part of a growing community of over 100,000 professionals — including front-end, back-end, full-stack, machine learning, and other engineers — who are driving real-world impact in AI development. Our platform offers an engaging blend of flexibility and challenge: you’ll work closely with state-of the art AI models to take on programming tasks that include creating and solving challenging coding problems, building beautiful apps with rich functionality, and synthesizing insights through data analysis and visualization. Your work directly contributes to refining intelligent systems that learn, adapt, and evolve. Some team members fit this work...

Overview We are seeking a highly skilled Cloud Site Reliability Engineer to join our dynamic IT team. This role is integral to maintaining, optimizing, and scaling our cloud infrastructure and services across multiple platforms including AWS, Google Cloud Platform, Azure, and private cloud environments. The ideal candidate will possess extensive experience in cloud architecture, virtualization, and automation, ensuring the reliability and performance of our cloud-based applications and services. This position offers an exciting opportunity to work on cutting-edge cloud development projects within a collaborative and innovative environment. Duties Design, implement, and manage scalable, reliable cloud infrastructure using platforms such as AWS, GCP, Azure, VMware, OpenStack, Rackspace, and Citrix. Develop automation scripts and tools utilizing Python, Bash, PowerShell, Ansible, Puppet, Chef, Terraform, and other DevOps tools to streamline deployment processes....

iOS Engineer - Contract (Outside of IR35) As an iOS Developer, you will have the opportunity to build and lead solutions that engage millions of sports fans worldwide. Working with a wide range of data sources and native technologies, building bespoke UI experiences for sports fans. At Pulselive, we pride ourselves in providing a collaborative environment that ensures we produce leading products across web and native applications. Contractor Outside of IR35 Day Rate: £400 - £500 per day   Responsibilities Being a self-sufficient individual contributor, breaking down work into manageable pieces, calling out blockers and dependencies and delivering solution in a timely manner Managing code releases to internal environments (dev, test); may also need to manage code release to external environments (production) Producing code to a high standard that not only functions correctly but...

SC Clearance Required UK-based (Hybrid) Outside IR35 We are looking for 2 x Cloud Engineers to support the next delivery phase of SCOUT, an AI-driven assurance platform used to improve the efficiency and quality of Government Major Project reviews. SCOUT has completed private beta and is now moving into a phase focused on automation, scalability, security, and wider organisational adoption. Role Overview: You will be responsible for deploying and supporting AI services on Amazon Web Services, with a strong focus on AWS Bedrock, ensuring the platform is secure, scalable, and usable by non-technical teams. The work centres on infrastructure, integration, and light service changes — not greenfield application development. Key Responsibilities: Deploy and manage AI services using AWS Bedrock Configure infrastructure and environment variables for AI API access Deploy and manage services including ECS, S3, Cognito, and RDS Implement Infrastructure as...

Who Are We? Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing market dominance and attain global expansion. We owe our success to our customers who have seen us grow across a decade, and our talented team who have made that growth possible!   What are we looking for? You're a full-stack dev - you've been around the block, and you know your way through both backend trenches and frontend battlefields. PHP? Still your reliable sidekick. JavaScript? Sometimes a mischievous friend, sometimes a chaos gremlin, but you've learned how to keep it in line. You work best with fierce independence. You don't need hand-holding - you're the one who does the hand-holding when it's needed. You don't wait for direction; you are the direction. To twist a phrase:...

Senior Front-End React Developer At Bridebook, we're digitising the wedding industry! Join us in transforming the wedding planning experience for engaged couples around the world. Full-time Contractor · Remote · Competitive Day Rate Who is Bridebook anyway? Bridebook is a revolutionary wedding planning platform that seeks to make wedding planning an enjoyable, intuitive, and rewarding experience for couples, guests, and industry partners. Launched in the UK, Bridebook has over 1,000,000 planning couples and has been featured in major outlets such as the New York Times, the BBC, and the App Store. After seven years and many iterations later, we have 2 in 3 engaged UK couples and 1 in 3 engaged German couples using Bridebook, and have recently expanded into the French and Irish markets. While we serve a very emotional and creative industry, we are disrupting the wedding industry by leveraging cutting-edge technology to provide seamless and...

Title: Applications Systems Engineer (Level 3) Hours: 37.5 per week Location: Site based 5 days per week at our Grangemouth HQ Salary: Dependent on skills, qualifications and experience Contract type: PAYE Agency (6-month initial contract) About Us A truly global company, INEOS comprises of numerous businesses with sites in countries throughout the world. We also encompass a wide range of consumer brands and sports interests. Grangemouth remains one of INEOS’ key sites in the UK and is home to world scale manufacturing plants – offering a unique environment in which to grow your skills, knowledge and competencies within the petrochemical sector. We are engineering a strong future for our site, based on a highly skilled, experienced workforce and a portfolio of essential products that underpin a sustainable, low carbon future for all. We are entrepreneurial. We love to find new ways of doing things. Whether that’s through improving the energy efficiency...

Location: Tewkesbury (Hybrid) Work Type: Contract (6 month) Salary: £300 - £650 PD (Inside IR35) Clearance Required: SC About PentenAmio PentenAmio is a leading provider of advanced digital security solutions that power national security and resilience across the UK, Australia and our allies. Focused on solving complex digital challenges that others avoid, we embrace the impossible to deliver transformative technologies that protect those who protect us. Across the UK and Australia, PentenAmio combines a legacy of knowledge and proven delivery across secure mobility and AI-driven deception technologies. Our work spans Government and Defence markets across civil and military applications, powering intelligent advantage on a global scale. Typical Activities Working in collaboration with internal stakeholders across Engineering, Product, and Technical Leadership, the Embedded Software Engineer will design, develop and deliver robust embedded software...

SC Clearance Required UK-based (Hybrid) Outside IR35 We are looking for 2 x Cloud Engineers to support the next delivery phase of SCOUT, an AI-driven assurance platform used to improve the efficiency and quality of Government Major Project reviews. SCOUT has completed private beta and is now moving into a phase focused on automation, scalability, security, and wider organisational adoption. Role Overview: You will be responsible for deploying and supporting AI services on Amazon Web Services, with a strong focus on AWS Bedrock, ensuring the platform is secure, scalable, and usable by non-technical teams. The work centres on infrastructure, integration, and light service changes — not greenfield application development. Key Responsibilities: Deploy and manage AI services using AWS Bedrock Configure infrastructure and environment variables for AI API access Deploy and manage services including ECS, S3, Cognito, and RDS Implement Infrastructure as...

World Wide Technology (WWT), a global technology integrator and IT solutions provider. World Wide Technology, established in 1990 in St. Louis, Missouri, collaborates with OEMs like Cisco and Dell EMC to offer infrastructure security and custom app development services to Fortune 500 companies in various sectors. With over 10,000 employees globally, we generate $17 billion in annual revenue and operate in regions including the US, UK, Canada, Europe, Costa Rica, APAC, and Middle East. We're proud to be consistently recognized as a top employer by Fortune and Glassdoor for over 13 years.   World Wide Technology Holding Co, LLC (WWT) has an opportunity for a Full Stack Engineer. Below is the JD for the role.   This is a contract Role & Inside IR35 Full Stack Engineer Contract Duration: 3 months rolling contract Location: London, United Kingdom (Hybrid - 3 days onsite per week)   About the Role We are seeking a highly...

SC Clearance is an essential requirement for this role, as a minimum you must be willing & eligible to undergo checks. Please note, due to the exceptional requirements of this position (short-term nature of this role and speed at which we require a postholder in situ) preference may be given to candidates who meet all of the essential criteria and hold active SV clearance.    The first duty of Government is to protect the public. Since 1782, the Home Office has led work to keep the country safe from those who seek to do it harm; in doing so, we make a vital contribution to HM Government's plan for a stronger, fairer, outward-looking and united Britain.   The Home Office covers three systems Homeland Security, Public Safety and Borders, and Immigration and Citizenship. These systems work collaboratively to deliver our cross-cutting priorities, whilst providing increasingly efficient and secure services for the public. These are difficult areas that...

We are currently seeking a Network Security Operations Engineer , to join our Network Practice ; within one of our Financial Services clients working in an elite Operations Team. This is an initial 6 month contract opportunity Inside IR35 with the prospect of extension. You will be required to be on site 3 days a week, based in Central London   Opticore IT is a rapidly expanding specialist Network Engineer and Project Management consultancy offering a wide variety of opportunities to work within challenging and exciting environments across our client base spanning multiple sectors including Finance, Broadcast Media, Telecommunications and more.   This is an exciting opportunity to join an elite Operations team focusing on BAU operational support with a strong emphasis on network security technologies , particularly firewalls with a chance to move into Project Delivery.   What you'll be doing: Work as part of the Network...

Senior Front-End React Developer At Bridebook, we're digitising the wedding industry! Join us in transforming the wedding planning experience for engaged couples around the world. Full-time Contractor · Remote · Competitive Day Rate Who is Bridebook anyway? Bridebook is a revolutionary wedding planning platform that seeks to make wedding planning an enjoyable, intuitive, and rewarding experience for couples, guests, and industry partners. Launched in the UK, Bridebook has over 1,000,000 planning couples and has been featured in major outlets such as the New York Times, the BBC, and the App Store. After seven years and many iterations later, we have 2 in 3 engaged UK couples and 1 in 3 engaged German couples using Bridebook, and have recently expanded into the French and Irish markets. While we serve a very emotional and creative industry, we are disrupting the wedding industry by leveraging cutting-edge technology to provide seamless and...

SC Clearance is an essential requirement for this role, as a minimum you must be willing & eligible to undergo checks. Please note, due to the exceptional requirements of this position (short-term nature of this role and speed at which we require a postholder in situ) preference may be given to candidates who meet all of the essential criteria and hold active security clearance   The first duty of Government is to protect the public. Since 1782, the Home Office has led work to keep the country safe from those who seek to do it harm; in doing so, we make a vital contribution to HM Government's plan for a stronger, fairer, outward-looking and united Britain.   The Law Enforcement Cloud Platform (LECP) is the Home Office 's strategic cloud hosting solution for national law enforcement applications and products (LECP 's 'tenants '). LECP provides a secure, police-assured environment based on a common infrastructure design. By enabling access to shared...

Location: Tewkesbury (Hybrid) Work Type: Contract (6 month) Salary: £300 - £650 PD (Inside IR35) Clearance Required: SC About PentenAmio PentenAmio is a leading provider of advanced digital security solutions that power national security and resilience across the UK, Australia and our allies. Focused on solving complex digital challenges that others avoid, we embrace the impossible to deliver transformative technologies that protect those who protect us. Across the UK and Australia, PentenAmio combines a legacy of knowledge and proven delivery across secure mobility and AI-driven deception technologies. Our work spans Government and Defence markets across civil and military applications, powering intelligent advantage on a global scale. Typical Activities Working in collaboration with internal stakeholders across Engineering, Product, and Technical Leadership, the Embedded Software Engineer will design, develop and deliver robust embedded software...

Senior Software Engineer (Contractor)   OUTSIDE IR35   Senior Software Engineer – Stock Ordering Team   Overall Ambition Solve complex hospitality challenges by building and integrating scalable, reliable, and efficient stock systems and support its integrations.   The Stock Ordering Team We are forming a new team to support the Stock and Finance domains. Several established product teams currently focus on Stock System innovation, Ingredients Management, New Product Development, and Purchase Order Management. This team will provide support and take strategic steps to improve stock operations.   Key responsibilities will include integrating external supplier APIs, implementing Software Reliability Engineering (SRE) best practices, and closely collaborating with existing teams to develop new software solutions. The team will enhance resilience, observability, incident management, and disaster recovery...

Location : Fully Remote Team : Tech Team Employment Type: Contract Tangible is a fast-growing, tech-driven platform providing liquidity solutions to LPs and GPs in the private-markets secondaries space. By combining deep sector expertise with modern infrastructure, we unlock liquidity across private equity, private credit, and real assets, transforming the industry and enabling investors to move faster and smarter. Tasks • Design, develop, and maintain robust, scalable application features and services. • Contribute to both client-facing and server-side components of the platform. • Write clean, readable, and well-tested code following engineering best practices. • Participate in architectural discussions and contribute to system design decisions. • Collaborate closely with QA, DevOps, Product, and Design teams. • Review code, participate in pull requests, and support pair programming. •...

Company Description WORTH is building an AI-native Wealth OS .   We turn fragmented, messy, real-world financial data into structured, validated, and reliable intelligence. Our systems are designed to handle partial inputs, ambiguity, and correction loops without breaking trust or usability.   We are operating in stealth and moving from a working prototype to a production-grade platform .     ⚠️ Please read before applying   To be respectful of everyone’s time, we will only review applications that meet all the requirements below . If this role is not a strong match, please do not apply.     Role Description   This is a senior freelance / contract role for a Full-Stack Engineer based in the UK, EU, or Israel .   You will own the implementation of end-to-end ingestion and validation flows , spanning frontend state management, backend APIs, and data models.  ...

Our mission at Duolingo is to develop the best education in the world and make it universally available. But we've got more left to do — and that's where you come in! With over 500 million users, Duolingo is the world's most popular language learning platform. We are rapidly growing our learner base and expanding into new subjects. Come join our Music team and help us build the future of music education. We are looking for a Unity engineer with a gaming background to help us implement our new music course and productionize our existing prototype. You will help build the best possible user experience for our learners through high-quality interactive lessons. Beyond our core learning product, we also offer English proficiency testing with the Duolingo English Test, and are bringing new subjects into the Duolingo app, where people can develop their Math and Music skills. We are passionate about educating our users, making fact-based decisions, and finding innovative...