101 to 125 of 221 Senior Developer Jobs in London

Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote One of the most recognisable financial services companies in the UK is on the hunt for Backend Engineers. They are revolutionizing the way people manage their money and would love YOU to help them on their journey! You will be responsible for building scalable, high-performance Back End … AWS or other cloud platforms Strong test driven development Strong scalability and performance mindset Location - Full remote (from the UK) Duration - 6 months Rate – Up to £700pd inside IR35 Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote More ❯

Senior Golang Software Engineer - AI Scale-up - Voice AI (Permanent - flexible salary) Senior Golang Software Engineer is now required by an Innovative AI scale up to build the strategic architecture platform for their AI product offering This role will be responsible for building a stable and replicable architecture for their core application, focusing on their AI tools in … application journey. Implement secure on-device storage for sensitive data. Collaborate with back-end engineers to successfully integrate RESTful APIs for data collection and AI services. Key Requirements: Strong Senior Software Engineer experience Exceptional Go/Golang skills Experience working across low-latency and zero trust platforms Experience across more than 1 cloud platform (AWS, Azure and GCP), and More ❯

Senior Golang Software Engineer - AI Scale-up - Voice AI (Permanent - flexible salary) Senior Golang Software Engineer is now required by an Innovative AI scale up to build the strategic architecture platform for their AI product offering This role will be responsible for building a stable and replicable architecture for their core application, focusing on their AI tools in … application journey. Implement secure on-device storage for sensitive data. Collaborate with back-end engineers to successfully integrate RESTful APIs for data collection and AI services. Key Requirements: Strong Senior Software Engineer experience Exceptional Go/Golang skills Experience working across low-latency and zero trust platforms Experience across more than 1 cloud platform (AWS, Azure and GCP), and More ❯

Hawksworth are now recruiting for a Senior Java Developer with extensive experience with Front Office Algo Trading projects. The job: IT Low Latency Java Developer 1 year contract with potential for extensions Inside IR35 Rate £920 per day to the Umbrella Company London Liverpool St location Hybrid working (x3 days on site x2 days working from home … pw) This is a IT Low-Latency, Java Developer position working for the e-FX Desk where the team develops the pricing, hedging and low-latency order and price distribution team systems. We need someone for this role role that has strong low latency , Java , Algo development experience. Someone who can show optimizing/low latency tuning and someone … who has achieved low latency in the microseconds. EFX would be nice but we can accept other other asset classes experience. What you will need: Tenure as a Senior Java Developer Significant Trading projects experience/Front office experience Algo trading Worked with Connectivity, Market Data, Core Pricing and Hedging strategy. Multithreading/FIX/Performance monitoring Significant More ❯

Hawksworth are now recruiting for a Senior Java Developer with extensive experience with Front Office Algo Trading projects. The job: IT Low Latency Java Developer 1 year contract with potential for extensions Inside IR35 Rate £920 per day to the Umbrella Company London Liverpool St location Hybrid working (x3 days on site x2 days working from home … pw) This is a IT Low-Latency, Java Developer position working for the e-FX Desk where the team develops the pricing, hedging and low-latency order and price distribution team systems. We need someone for this role role that has strong low latency , Java , Algo development experience. Someone who can show optimizing/low latency tuning and someone … who has achieved low latency in the microseconds. EFX would be nice but we can accept other other asset classes experience. What you will need: Tenure as a Senior Java Developer Significant Trading projects experience/Front office experience Algo trading Worked with Connectivity, Market Data, Core Pricing and Hedging strategy. Multithreading/FIX/Performance monitoring Significant More ❯

Our client is seeking a highly technical and hands-on Senior Salesforce Developer with strong expertise across Salesforce Marketing Cloud, Service Cloud, and Experience Cloud. This is an exciting opportunity to take ownership of the end-to-end development lifecycle within a large and complex Salesforce environment, driving forward the organisation’s digital transformation initiatives. The Senior Salesforce Developer will play a pivotal role in developing, integrating, and maintaining Salesforce platforms, ensuring scalable, high-quality solutions are delivered across Marketing, Service, and Experience Cloud. You will lead a small team of developers while remaining hands-on with coding, integration, and architecture, delivering robust technical solutions that align with business objectives. Key Responsibilities Lead, mentor, and … Salesforce best practices Manage and prioritise workloads, ensuring timely delivery of key projects and initiatives Drive innovation and technical excellence across the Salesforce ecosystem Essential Skills & Experience Certified Salesforce Developer (required) Proven, hands-on technical expertise across Salesforce Marketing Cloud, Service Cloud, and Experience Cloud Demonstrable experience delivering end-to-end Salesforce development projects, from requirement gathering to implementation More ❯

Our client is seeking a highly technical and hands-on Senior Salesforce Developer with strong expertise across Salesforce Marketing Cloud, Service Cloud, and Experience Cloud. This is an exciting opportunity to take ownership of the end-to-end development lifecycle within a large and complex Salesforce environment, driving forward the organisation’s digital transformation initiatives. The Senior Salesforce Developer will play a pivotal role in developing, integrating, and maintaining Salesforce platforms, ensuring scalable, high-quality solutions are delivered across Marketing, Service, and Experience Cloud. You will lead a small team of developers while remaining hands-on with coding, integration, and architecture, delivering robust technical solutions that align with business objectives. Key Responsibilities Lead, mentor, and … Salesforce best practices Manage and prioritise workloads, ensuring timely delivery of key projects and initiatives Drive innovation and technical excellence across the Salesforce ecosystem Essential Skills & Experience Certified Salesforce Developer (required) Proven, hands-on technical expertise across Salesforce Marketing Cloud, Service Cloud, and Experience Cloud Demonstrable experience delivering end-to-end Salesforce development projects, from requirement gathering to implementation More ❯

Senior PHP Developer - Laravel - Remote in UK - £500-600pd We’re searching for a talented senior PHP developer to join our team and dive into building a one-of-a-kind platform that manages finances for super yachts and touring bands—pretty cool, huh? This isn’t your average gig; you’ll be working on More ❯

Senior PHP Developer - Laravel - Remote in UK - £500-600pd We’re searching for a talented senior PHP developer to join our team and dive into building a one-of-a-kind platform that manages finances for super yachts and touring bands—pretty cool, huh? This isn’t your average gig; you’ll be working on More ❯

Senior PHP Developer - Laravel - Remote in UK - £500-600pd We’re searching for a talented senior PHP developer to join our team and dive into building a one-of-a-kind platform that manages finances for super yachts and touring bands—pretty cool, huh? This isn’t your average gig; you’ll be working on More ❯

Senior PHP Developer - Laravel - Remote in UK - £500-600pd We’re searching for a talented senior PHP developer to join our team and dive into building a one-of-a-kind platform that manages finances for super yachts and touring bands—pretty cool, huh? This isn’t your average gig; you’ll be working on More ❯

Senior PHP Developer - Laravel - Remote in UK - £500-600pd We’re searching for a talented senior PHP developer to join our team and dive into building a one-of-a-kind platform that manages finances for super yachts and touring bands—pretty cool, huh? This isn’t your average gig; you’ll be working on More ❯

Location London/Salford Hybrid 1-2 days a week in the office eligibility to work in the UK Role Overview We are seeking an experienced Senior Developer with strong infrastructure and DevOps expertise to help deliver and support a key transformation project moving the system from an on-premises environment into AWS. This role focuses on engineering … Ops experience Infrastructure, build development experience, monitoring/alerting Desirable Skills SSO Integration Any previous experience of newsroom systems Team player and collaborative working Experience Proven experience as a Senior Software Engineer ideally with a focus on media-related projects. A degree in Computer Science, Software Engineering, or a related field or similar work-based experience. Very good working More ❯

Our leading Banking client are looking for a talented Senior Kotlin Developer to join a small highly skilled team tasked with developing a modern trading application to replace an existing Legacy system. You'll design, develop, and implement a scalable trading application to replace the Legacy system. You'll collaborate with team members to architect and deliver high … Excellent communication skills Rate: Up to £850/day Duration: 6 months + (multiple extensions) Location: London (good work from home options available) If you are interested in this Senior Kotlin Developer position and meet the above requirements please apply immediately. More ❯

Our leading Banking client are looking for a talented Senior Kotlin Developer to join a small highly skilled team tasked with developing a modern trading application to replace an existing Legacy system. You'll design, develop, and implement a scalable trading application to replace the Legacy system. You'll collaborate with team members to architect and deliver high … Excellent communication skills Rate: Up to £850/day Duration: 6 months + (multiple extensions) Location: London (good work from home options available) If you are interested in this Senior Kotlin Developer position and meet the above requirements please apply immediately. More ❯

Job Title: Senior Python Developer (Python/Django) Location: Fully Remote Job Type: Full-Time Salary 80k - 100k About the Company: A fast-growing tech company revolutionizing the e-commerce/data analytics sector with cutting-edge software solutions. Join their dynamic engineering team and contribute to innovative projects. Job Description: We're looking for a passionate Python … Developer (Python/Django) with 5 + years of experience. This role offers the opportunity to work in a fast-paced, collaborative environment and grow your skills. Key Responsibilities: Develop and maintain scalable applications using Python (Django). Build and integrate APIs and third-party services. Participate in Agile development cycles and CI/CD processes. Optimize applications for More ❯

Senior Full Stack Developer Hybrid - Work from Home with occasional travel to London (First week in London for induction) Permanent Up to £95,000 + Excellent Benefits HBG Recruitment is proud to partner with a leading British media institution , home to some of the UK's most recognisable brands click apply for full job details More ❯

We're looking for a Senior Blockchain Developer to lead the development of our blockchain-based financial solutions. You'll be responsible for designing and implementing secure, scalable blockchain applications that integrate with our AI platform. Responsibilities Design and develop blockchain solutions for financial applications Lead the implementation of smart contracts and decentralized applications Ensure security and efficiency More ❯

Senior Full Stack Engineer | Cybersecurity Scale-Up | Fully Remote (Global) Want to use your full stack skills to help stop real-world cyber attacks? This is your chance to join a fast-growing, VC-backed cybersecurity innovator , recognised by Gartner and trusted by Fortune 500s and critical infrastructure providers worldwide. They’re building cutting-edge technology that helps organisations … continuously understand how they could be compromised — and they’re scaling fast. Now, they’re looking for a Senior Full Stack Engineer to join their Client Facing Applications (CFA) team, where you’ll help shape the customer experience for some of the world’s largest enterprises. What you’ll be doing: Designing and developing enterprise-grade SaaS features across More ❯

Senior PHP Developer with (Laravel | Symfony) – Remote (UK) - £85k + Bonus and shares We’re searching for a talented senior PHP developer to join our team and dive into building a one-of-a-kind platform that manages finances for super yachts and touring bands—pretty cool, huh? This isn’t your average gig; you’ll More ❯

Senior PHP Developer with (Laravel | Symfony) – Remote (UK) - £85k + Bonus and shares We’re searching for a talented senior PHP developer to join our team and dive into building a one-of-a-kind platform that manages finances for super yachts and touring bands—pretty cool, huh? This isn’t your average gig; you’ll More ❯

Senior PHP Developer with (Laravel | Symfony) – Remote (UK) - £85k + Bonus and shares We’re searching for a talented senior PHP developer to join our team and dive into building a one-of-a-kind platform that manages finances for super yachts and touring bands—pretty cool, huh? This isn’t your average gig; you’ll More ❯

Senior PHP Developer with (Laravel | Symfony) – Remote (UK) - £85k + Bonus and shares We’re searching for a talented senior PHP developer to join our team and dive into building a one-of-a-kind platform that manages finances for super yachts and touring bands—pretty cool, huh? This isn’t your average gig; you’ll More ❯

Senior PHP Developer with (Laravel | Symfony) – Remote (UK) - £85k + Bonus and shares We’re searching for a talented senior PHP developer to join our team and dive into building a one-of-a-kind platform that manages finances for super yachts and touring bands—pretty cool, huh? This isn’t your average gig; you’ll More ❯

Senior Frontend Engineer – Scaling Start-Up – Up to £130,000 + Equity 🚀 💰Up to £130,000 plus equity 🏡Hybrid working – London based 💻React.js & TypeScript We’re partnered with a scaling Start-Up who have recently raised significant investment and are looking to expand their team. The business brings much needed security and data protection across AI and they are … of AI whilst ensuring data is protected and companies are not at risk. Backed by experienced Founders of a former Tech Unicorn, they are now looking to hire a Senior Frontend Engineer into their growing team where you’ll have the opportunity to work on a number of exciting greenfield projects whilst building upgrades onto their existing platform. What More ❯