Senior Javascript Developer jobs in London – Page 4 | RoboApply Jobs

Senior Javascript Developer jobs in London· Page 4

Results 61–80 of 3,307 for “Senior Javascript Developer” in London.

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Sony Interactive Entertainment logo
Senior Technical Operations Developer

Sony Interactive Entertainment

Full-time|On-site|United Kingdom, London

About PlayStation and Sony Interactive Entertainment PlayStation, part of Sony Interactive Entertainment and a subsidiary of Sony Group Corporation, is known for creating the PlayStation family of products and services, including PlayStation®5, PlayStation®4, PlayStation®VR, PlayStation®Plus, and acclaimed titles from PlayStation Studios. The company values …

Apr 15, 2026
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ZILO™ logo
Full-time|Hybrid|London, England, United Kingdom

Be a Pioneer in Technology with ZILO™At ZILO™, we are revolutionizing the landscape of technology. As a UK-based FinTech leader, we specialize in crafting innovative software solutions for global asset and wealth management, leveraging our proprietary AI technology to empower businesses across various sectors. Our vision is to digitize the future of the global asset management industry.Our team comprises seasoned professionals with extensive experience at prestigious global firms, passionate about shaping technological advancements. Each team member plays a critical role in fostering innovation and driving substantial change.Why Join Us? At ZILO™, you will immerse yourself in a vibrant and inclusive culture that nurtures creativity. You'll have the chance to work with cutting-edge technology, collaborate with skilled professionals, and engage in projects that make a tangible difference. We prioritize continuous learning, personal development, and equipping our employees with the tools necessary for success.Are you ready to help us redefine the future? Let’s connect.

Dec 17, 2025
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difrent logo
Full-time|On-site|London

Join our dynamic team as a Senior Project Manager specializing in both Waterfall and Agile methodologies within the not-for-profit sector. This role, based in our vibrant central London office, involves overseeing projects of significant strategic importance from inception to completion. You will play a key role in coordinating and justifying the development of business cases to our stakeholders.The ideal candidate will have a robust background in managing enterprise software development projects and will demonstrate proficiency in a spectrum of software development methodologies, particularly Agile.

Dec 4, 2018
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Pro Contract Jobs Limited logo
Contract|£65K/yr - £65K/yr|Remote|South East London

Senior PHP Backend Developer - £500 per day (12+ Months, Remote Work Available, Outside IR35)We are seeking an experienced PHP Developer to join our team, working on an innovative Greenfield backend REST API project tailored for the transport sector. Collaborating closely with a Senior API Engineer, you will be part of a smaller, established, and friendly agency dedicated to delivering a significant project for a prominent client in the transport industry.Work Location:Options available in London, Bristol, or Cornwall, with full flexibility for remote work.

Feb 18, 2020
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The Economist Group logo
Full-time|On-site|London - Commercial

Who We AreAt The Economist Group (TEG), our mission is to foster progress. This core principle unites our diverse teams as we strive for innovation, independence, and rigor in our respective fields. We are dedicated to equipping individuals and organizations with the analytical tools and insights necessary to navigate the critical challenges and transformations facing the globe today.With a strong reputation for excellence, we provide subscribers and clients in 170 countries with comprehensive analysis and insights through our four primary businesses: The Economist, Economist Impact, Economist Intelligence, and Economist Education. The RoleAs the Senior Business Development Manager for Custom Events at Economist Impact, you will play a pivotal role in leading our bespoke event initiatives across the Americas from our London office. This position is crucial for expanding our event sponsorship revenue throughout the region.Key ResponsibilitiesAchieve personal sales targets and revenue goals for bespoke events in the Americas region.Develop and expand a new client base within key accounts across the region.Create and implement renewal strategies for existing clients.Collaborate with the partnership sales team to enhance cross-selling opportunities.Coordinate with marketing, programming, operations, and the Global Events team.Manage client relationships throughout the project lifecycle and oversee renewal discussions.Monitor and report on personal and regional custom event revenue.Deepen understanding of the Economist brand’s positioning in the global market, ensuring adherence to editorial guidelines.Who You AreProven track record of generating sales revenue and cultivating new business.Self-starter with the ability to create business opportunities independently.Essential experience in event-related sponsorship sales.Demonstrated ability to work collaboratively with client-focused teams in consultative project or event environments.

Mar 3, 2026
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version1 logo
Full-time|On-site|London, Birmingham, Manchester, Newcastle upon Tyne, Edinburgh, Belfast

Role overview version1 is seeking a Senior C++ Developer to design and build software solutions. This position works alongside digital, data, and cloud teams to deliver applications that serve a variety of clients. The focus is on creating reliable and high-performance systems that meet client needs. What you will do Design and implement software using C++ for a range of projects Contribute throughout the project lifecycle, from concept to delivery Collaborate with colleagues across digital, data, and cloud teams Prioritize performance and reliability in every solution Requirements Extensive experience developing with C++ Proven ability to deliver complete software projects Strong collaboration skills with both technical and non-technical team members Locations This role is available in London, Birmingham, Manchester, Newcastle upon Tyne, Edinburgh, and Belfast.

Apr 28, 2026
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Connexity logo
Full-time|On-site|London, England, United Kingdom

About Us:Connexity is a globally recognized leader in retail performance marketing, boasting over 20 years of pioneering innovation in e-commerce. We are on the lookout for a seasoned and well-connected sales expert to drive our ambitious growth strategies in the pivotal UK market.Following our acquisition by Taboola in 2021, we have become the first Open-Web source for publishers, seamlessly merging editorial content with tailored product recommendations, enabling readers to purchase related products effortlessly.Discover how we are transforming the industry!About the Role:This key position presents a remarkable opportunity for a high-caliber individual contributor to make a significant impact on our European expansion and contribute directly to our ambitious revenue objectives.Reporting directly to the VP of EU Business Development, you will take full ownership of your sales pipeline, with a clear target of achieving £1.5M in annual advertising revenue. We seek an ambitious and results-oriented professional with a proven sales record among senior decision-makers in the UK retail e-commerce sector.In addition to individual achievements, you will collaborate closely with cross-functional teams to deliver exceptional value to clients and maximize revenue and profit opportunities.Responsibilities:Strategic Territory Management: Create and implement a comprehensive business development strategy for your territory, identifying key growth opportunities and meeting revenue targets.High-Value Prospecting & Acquisition: Actively engage with key decision-makers in leading UK retail e-commerce brands, agencies, and partners through various outreach methods, including cold-calling, email, and LinkedIn.Consultative Sales & Solutioning: Gain a deep understanding of client needs and challenges, positioning Connexity's diverse solutions to ensure their success.Relationship Management: Build and maintain robust, long-lasting relationships with clients, agencies, and industry partners to optimize revenue potential.Market Intelligence & Product Development: Serve as a critical link between the market and internal teams, providing valuable feedback, competitive insights, and suggestions for product enhancement and strategic direction.Cross-Functional Collaboration: Work closely with internal marketing, seller support, product, and operations teams to ensure efficient execution.Thought Leadership: Represent Connexity at important industry events and conferences.

Mar 21, 2026
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AnyVan logo
Full-time|On-site|London

Do you have the passion to drive innovation? Join AnyVan and revolutionize the way we move anything, anywhere while building a fulfilling career that accelerates with every challenge. Founded in 2009 by our visionary CEO Angus, AnyVan emerged from the need to optimize logistics by utilizing underused van space. Our mission is to transform logistics technology, dramatically reducing wasted journeys and carbon emissions. With over 150,000 five-star reviews and a customer base exceeding 5 million across the UK and Europe, we are proud to be the preferred choice for countless users. Our dedicated team of 400 AnyVanners, operating from London, Cape Town, and Bogota, is committed to reducing carbon emissions by 8,520 tonnes annually. Be at the forefront of logistics innovationAt the core of our operations is a cutting-edge optimization platform that seamlessly connects customer needs with real-time driver availability, enabling us to provide exceptional service at unbeatable rates.By efficiently matching jobs with drivers already on the road, we minimize unnecessary miles, reduce emissions, and ensure fair earnings for our drivers. It’s a complex interplay of logistics, pricing, and marketplace dynamics, all powered by advanced software.And this is just the beginning...As we embark on the next phase of development, we're transitioning our platform to a truly intelligent logistics marketplace. Your role will involve designing and building systems to:Accurately model job-level costs in real time, paving the way for smarter, more dynamic pricing strategies.Enhance our driver platform, integrating it deeper into their daily operations and unlocking new revenue streams.Establish a two-sided marketplace, facilitating the buying and selling of non-core jobs among drivers to optimize utilization.Scale efficiently as we grow in volume, complexity, and ambition.This position is ideal for engineers who thrive on tackling complex, high-impact challenges and shaping the evolution of a scalable platform.

Jan 7, 2026
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Kaluza logo
Full-time|£60K/yr - £82.5K/yr|Hybrid|Bristol, England, United Kingdom; Edinburgh, Scotland, United Kingdom; London, England, United Kingdom

Job Title: Senior Engineer I Location: London, Bristol, or Edinburgh (Including Hybrid) Salary: £60,000 - £82,500 Team: Developer Experience Reporting To: Head of Engineering Closing date: Friday 30th March 2026 This role is based in the UK and requires an existing right to work in the UK. At this time, we are unable to offer visa sponsorship for this role. We are committed to cultivating a diverse, global team and our sponsorship policy is assessed on a role-by-role basis. We encourage you to regularly visit our careers site for updates on future opportunities where we may offer visa sponsorship. Kaluza is at the forefront of the energy revolution, transforming complex energy challenges into streamlined solutions. We empower energy companies to navigate contemporary challenges while driving the transition to a sustainable, electrified future. Our platform orchestrates millions of real-time decisions across homes, devices, markets, and grids. By merging predictive algorithms with user-centric design, Kaluza ensures clean energy is reliable, affordable, and seamlessly integrated into daily life. With teams across Europe, North America, Asia, and Australia, alongside a joint venture with Mitsubishi Corporation in Japan, we support industry leaders such as OVO, AGL, and ENGIE, as well as innovators like Volvo and Volkswagen. What will I be doing? In this impactful role, you will be instrumental in architecting and enhancing our Internal AI Engineering Platform. You will construct the infrastructure, from Model Context Protocol (MCP) servers to shared workflows, enabling our software teams to accelerate their development while ensuring system reliability and security. Your contributions will significantly influence Kaluza’s efforts to minimize defects, enhance productivity, and establish a benchmark for AI-driven development. AI Tooling Orchestration: Spearhead the trials and implementation of advanced engineering tools, including Claude Code, Kiro, and Opencode, ensuring their seamless integration into the developer workflow. Infrastructure & Connectivity: Design and maintain our MCP (Model Context Protocol) registry, creating a secure and scalable process for approving and deploying new servers and tools. Shared Workflows: Develop and uphold shared services and standards that standardize coding practices and automate repetitive architectural tasks across teams to facilitate AI workflows. Spec-Driven Development: (additional responsibilities to be defined).

Mar 2, 2026
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Zinc Network logo
Full-time|On-site|London, England, United Kingdom

Join Zinc Network as a Senior Producer and take the lead in developing impactful and high-quality video content for an innovative project! You will oversee the entire production process, from crafting compelling scripts to sourcing archival materials, collaborating with animators and motion graphics designers, and finalizing the edited videos.As a key member of our London team, reporting directly to our Director of Content, you will identify and select captivating stories for video and social media content. Your role involves commissioning projects and managing a small, creative team to ensure the highest editorial standards are met.You will be responsible for managing production schedules, ensuring deadlines are met, and delivering all assets on time. A significant part of your role will be to drive the project forward, collaborating closely with our accounts, digital, and project management teams to facilitate seamless project delivery. No shooting or directing experience is necessary.Bringing substantial journalistic experience along with a creative flair, you will ideally have held a senior position in a news or content organization where you managed the editorial work of others. We are looking for someone who is resourceful, inquisitive, and full of innovative ideas. You will oversee multiple content pieces simultaneously, requiring excellent organization, efficiency, and a positive, can-do attitude towards meeting tight deadlines.As an accomplished video producer, you should possess extensive editing experience and a knack for writing clear, engaging scripts. You will excel at simplifying complex information and transforming in-depth research into captivating video concepts, identifying effective story hooks, and proposing creative treatments that resonate with our target audiences. Your expertise should also include creating visually outstanding films and sourcing quality archival footage while having experience in motion graphics and animation.Fluency in one or more Eastern European languages is preferred (please specify in your application), but not mandatory. Excellent proficiency in spoken and written English is required.To be considered for this role, please include samples of short social videos and other content you have produced and supervised.

Jan 14, 2026
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Methods logo
Full-time|On-site|London, England, United Kingdom

Join Methods as a Senior Salesforce Developer!As a leading £100m Digital Transformation company, Methods, part of the Alten Group, has been delivering innovative business and digital technology solutions for over 30 years. We pride ourselves on our strong partnerships with over 50 active clients, many of whom have trusted us for more than a decade.Since our inception in 1990, we have collaborated with various central government departments and agencies to revolutionize public sector operations in the UK. Our mission is to enhance and protect public-facing services, ensuring they are designed around the needs of our citizens.What sets us apart from other consultancies is our commitment to a customer-centric approach. At Methods, we believe in fostering a collaborative environment where we support our clients' project successes, share expertise, and tackle challenges together. We value the learning process that comes from innovation and are not afraid to embrace mistakes along the way.With a growing private sector client portfolio and a headquarters in central London, along with seven regional offices, we have over 300 dedicated professionals. Methods excels in delivering multi-disciplinary, full-lifecycle services that transition businesses from legacy systems to modern, user-focused cloud and hybrid solutions. We are a national leader in merging user-centered digital service design with cloud-based open architecture and contemporary technology services.The RoleThe Senior Salesforce Developer is pivotal in designing, developing, and enhancing Salesforce solutions that ensure top-notch service delivery aligned with business needs.In this role, you will provide technical leadership, ensuring development resources are effectively utilized to maintain operational stability while implementing enhancements and transformations that promote system scalability and sustainability.As the senior technical contact for Salesforce delivery, you'll uphold best practices in governance, coding standards, and development methodologies. Collaborating closely with business analysts, product owners, architects, and third-party vendors, you'll ensure a seamless alignment across the Salesforce ecosystem.

Dec 1, 2025
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Endava logo
Full-time|On-site|London

The Growth discipline is pivotal in driving business expansion, fostering partnerships, and offering industry expertise and advisory services to both clients and internal teams. This strategic and consultative team cultivates meaningful relationships with clients by deeply understanding IT professional services, digital transformation, and the dynamic Payments technology landscape.As a Senior Business Development Manager – Payments at Endava, your primary responsibility will be to identify and engage new enterprise clients, showcasing Endava’s extensive capabilities in IT professional services, digital transformation, and bespoke software engineering.This role demands a sales leader with substantial experience in selling complex IT services and custom software development solutions within the Payments ecosystem, including payment providers, fintech companies, banks, and financial institutions.You will guide clients throughout the entire sales lifecycle, assisting them in modernizing and transforming their technology platforms through application development, data and AI engineering, cloud transformation, and digital platform engineering.Key Responsibilities:Act as a trusted advisor, selling IT professional services and custom software development solutions to enterprise clients within the Payments ecosystem.Identify and cultivate new client opportunities through strategic prospecting, networking, industry events, referrals, and targeted outreach.Manage and execute the complete end-to-end enterprise sales cycle, from prospecting and qualification to proposal, negotiation, and closure.Develop and maintain a strong pipeline of new business opportunities aligned with revenue targets.Engage with senior stakeholders (CIO, CTO, CDO, VP Engineering, Head of Payments) to position digital transformation initiatives and tailor technology solutions.Pinpoint client challenges related to legacy systems, payments infrastructure modernization, platform engineering, data and AI, and cloud adoption, positioning Endava’s services as the optimal solution.Lead the creation of proposals, solution positioning, and Statements of Work (SOWs) in collaboration with delivery and solution teams.Negotiate and finalize strategic multi-year IT services agreements.Surpass revenue targets through new business acquisition and strategic account growth.Act as a subject matter expert in the Payments industry, keeping abreast of the evolving technology landscape and emerging trends.Represent Endava at industry events, fintech forums, and payments conferences to enhance market presence and generate new opportunities.Support sales and marketing initiatives by identifying priority targets and ensuring robust follow-up on leads generated through events and marketing campaigns.

Mar 16, 2026
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Air Apps logo
Full-time|On-site|London Metropolitain Area

About Air Apps Air Apps was founded in 2018 by a family in Lisbon, Portugal. The company’s mission is to build the world’s first AI-powered Personal & Entrepreneurial Resource Planner (PRP). With over 100 million downloads worldwide, Air Apps operates from offices in Lisbon and San Francisco. As a self-funded team, Air Apps focuses on developing AI-driven solutions that make a real difference in resource management for individuals across the globe. Role Overview: React Engineer The React Engineer will focus on building responsive and accessible user interfaces for web applications. This role involves close collaboration with designers, product managers, and backend engineers to turn wireframes and prototypes into polished, scalable front-end experiences. The goal is to deliver seamless and engaging interfaces that users enjoy. This posting is part of Air Apps’ effort to grow its talent pool ahead of the official job launch. Candidates will be contacted when the position becomes active. Work Environment Location: Fully onsite at the Lisbon office. Work closely with cross-functional teams in a collaborative setting. Relocation support is available. Key Responsibilities UI/UX Implementation: Develop high-quality, responsive interfaces that match design requirements and work well across browsers and devices. Frontend Technologies: Use modern JavaScript frameworks and libraries such as React, Vue.js, or Angular, along with HTML5, CSS3, and responsive design techniques to build and maintain code. Performance Optimization: Improve page load speed, rendering, and the overall user experience. Integration with APIs: Collaborate with backend teams to connect RESTful or GraphQL APIs, ensuring smooth data exchange between client and server. Accessibility and SEO: Follow best practices for accessibility (including WCAG standards) and search engine optimization to improve usability and reach.

Apr 17, 2026
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Telefónica Tech logo
Full-time|On-site|London

Join Our Team as a Senior Application Engineer / DeveloperAre you passionate about crafting cutting-edge AI and cloud-native applications that leave users in awe? Are you eager to explore the frontiers of software delivery, AI engineering, and innovative application patterns? If you have a knack for developing intelligent applications that push the boundaries of technology, we want to hear from you!In this dynamic role, you will be at the forefront of building AI-driven solutions, focusing on hands-on development to create applications that challenge the status quo.Key Responsibilities:Design, build, test, and deploy state-of-the-art applications.Transform software delivery processes in the AI and cloud era.Evaluate AI code generation for accuracy and functionality.

Jan 30, 2026
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zeneducate logo
Full-time|On-site|London

Join zeneducate as a Senior Sales Development Representative (Player-Coach) where you will drive our growth by leading a talented team while also personally engaging with clients. This dual role allows you to mentor emerging sales talent while actively participating in the sales process to secure new business.

Apr 17, 2024
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Wise logo
Full-time|On-site|London

Join Wise as a Senior Business Development Manager focused on online platforms, where you will play a crucial role in driving growth and strategic partnerships. Your expertise will contribute to expanding our reach and enhancing our customer experience. Collaborate with cross-functional teams to identify new opportunities and develop innovative solutions that align with our business goals.

Mar 31, 2026
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blp-digital logo
Full-time|On-site|Onsite London

blp-digital is hiring a Senior Commercial Sales Development Representative to join the onsite team in London. This position plays a key part in building new business and expanding client relationships. Role overview This role focuses on leading sales outreach and connecting with potential clients. The Senior Commercial SDR identifies new opportunities, initiates conversations, and helps move prospects through the sales process. Building strong relationships and understanding client needs are central to success in this position. What you will do Drive engagement with prospective clients and open new business channels Develop and nurture relationships that support long-term growth Identify and qualify opportunities for blp-digital’s solutions Present offerings to a varied client base across industries Location This is an onsite role based in London.

Apr 30, 2026
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Howett Thorpe Recruitment Consultants Ltd logo
Senior Learning & Development Business Partner

Howett Thorpe Recruitment Consultants Ltd

Full-time|On-site|City

Howett Thorpe is proud to partner with a prestigious client seeking a Senior Learning & Development Business Partner. In this vital role, you will be instrumental in crafting and implementing learning and development strategies across two key business sectors, including leadership and management teams as well as the wider employee base across their London headquarters and various regional locations.As the Senior L&D Business Partner, you will not only define the learning strategy but also ensure effective operational delivery with the support of the Training Manager. Your expertise will enable you to tailor learning solutions that meet the diverse needs of the organization.Reference: HT12249

Oct 29, 2018
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Steer Group logo
Full-time|Hybrid|London, England, United Kingdom

Main Responsibilities:Steer Group aims to enhance urban living, working environments, and recreational spaces. We are looking for a seasoned Senior Transport Consultant to enrich our Major Developments team in London. Our diverse project portfolio includes collaborations with esteemed clients such as The Houses of Parliament, Canary Wharf Group, London City Airport, Argent, and Homes England.While your primary base will be our award-winning London office, we promote a flexible work policy to accommodate your personal and family needs.As an employee-owned company, you will immerse yourself in Steer's unique culture, characterized by collaboration, inclusiveness, and professional growth. You will have a dedicated supervisor focused on your career development, along with opportunities to work across various segments of the Steer business. Our dedicated learning and development team is here to assist you in attaining professional qualifications, including chartership, and advancing your overall career.We tackle complex projects, collaborating with clients and multidisciplinary teams to deliver efficient, innovative, and sustainable solutions that enhance our communities.In addition to attracting new clients, a significant portion of our work comes from established relationships. As a Senior Consultant, you will play a pivotal role in nurturing and expanding these long-term partnerships.Qualifications:Collaborate with a team to provide innovative transport solutions for both private and public sector clients.Lead project work streams with minimal supervision, ensuring that best practices are consistently applied.Deliver high-quality transport and highway advice as part of multidisciplinary teams on various transport-related projects, including major developments and sustainable initiatives.Contribute to high-profile major development projects in the UK, enhancing the company’s reputation for excellence.Project manage multidisciplinary projects and coordinate with sub-consultants and support staff as necessary.Lead Steer’s contributions at pre-application meetings, design team discussions, and public consultations.Exhibit proactivity and initiative in managing key tasks across multiple projects.Prepare and present reports, proposals, briefing notes, and transport planning documentation.Manage client relationships effectively on a day-to-day basis, ensuring prompt communication and project updates.

Feb 17, 2026
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Tandem Health logo
Full-time|On-site|London

Join Us in Transforming Healthcare!At Tandem Health, we are revolutionizing the healthcare landscape by prioritizing clinicians. Our innovative platform, designed by healthcare professionals for healthcare professionals, addresses real-world challenges through intuitive medical notes and workflows that enhance patient care.As a rapidly growing health-tech organization supported by leading investors, we are expanding our global reach. We believe that meaningful change begins with an exceptional team, and we invite you to be part of our journey if you are driven by impact and innovation!Role OverviewAs a Senior Sales Development Representative (SDR) at Tandem Health, you'll play a crucial role in our mission to provide clinicians with a copilot that allows them to focus on patient care. Your responsibilities will include conducting insightful research and executing strategic outreach to initiate meaningful conversations that can change healthcare delivery. You'll help shape our outbound strategy and playbooks with an emphasis on speed and effectiveness, ensuring every engagement aligns with the clinicians' workflows and outcomes. This position offers growth potential into leadership as our European operations expand.Key ResponsibilitiesManage a designated territory and key accounts by mapping out the buying groups among clinical, operations, IT, security, and executive stakeholders.Execute tailored outreach strategies through email, phone, LinkedIn, and events.Quickly generate and qualify leads to secure meetings that drive conversion, establishing clear next steps and seamless handoffs.Collaborate with the Marketing team to support campaigns and ensure high-quality follow-ups.Maintain accurate CRM records by logging activities, notes, and action items to facilitate precise reporting and forecasting.Experiment with outreach cadences and messaging, analyze outcomes, and share insights to enhance team performance.QualificationsDemonstrated success as a top-performing B2B SaaS SDR/BDR with a track record of meeting or exceeding quotas.Outstanding written and verbal communication skills, with a focus on value-driven outreach.Strong discovery and qualification abilities, coupled with effective objection-handling experience.Advanced research skills for account analysis and comfort in navigating complex, multi-stakeholder deals.A proactive approach to testing messaging strategies and iterating based on data-driven insights.

Jan 14, 2026

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