601 to 625 of 1,022 ECMAScript Jobs in London

Hands-on ability to prototype: capable of using APIs/SDKs from major LLM providers and writing simple code (e.g., Python or TypeScript/JavaScript) to stitch together prompts, tools, and agent workflows. Proven track record of taking 0→1 product ideas from concept through prototype to launched features, with ...

scale data sets with structured or unstructured data Experience in building user facing applications over large amounts of data using technologies like React, Angular, JavaScript etc. Experience implementing process improvements and automation Strong Python development skills (including Pandas and related data-processing libraries). Experience with big data technologies such ...

keys, JWT), webhooks, and integration architecture; you can review an integration design and immediately identify what's wrong Comfortable reading and discussing code (JavaScript, Python, or similar) and engaging at technical depth with developers without needing to write production code yourself Track record of owning measurable outcomes: time-to-live ...

large scale data sets with structured or unstructured dataExperience in building user facing applications over large amounts of data using technologies like React, Angular, JavaScript etc.Experience implementing process improvements and automationStrong Python development skills (including Pandas and related data-processing libraries).Experience with big data technologies such as Spark, PySpark ...

constraints.Hands-on ability to prototype: capable of using APIs/SDKs from major LLM providers and writing simple code (e.g., Python or TypeScript/JavaScript) to stitch together prompts, tools, and agent workflows.Proven track record of taking 01 product ideas from concept through prototype to launched features, with clear impact ...

Hands‐on ability to prototype: capable of using APIs/SDKs from major LLM providers and writing simple code (e.g., Python or TypeScript/JavaScript) to stitch together prompts, tools, and agent workflows. Proven track record of taking 0→1 product ideas from concept through prototype to launched features, with ...

technical and non-technical stakeholders across functions and seniority levels.Experience with APIs, SDKs, and custom integrations, including hands-on prototyping using technologies such as JavaScript and GraphQL.Advanced understanding of 3D data types (models, point clouds, imagery) and the workflows customers use to operationalize spatial data.Strong knowledge of cloud platforms, security ...

Computer Science, Software Engineering, Mathematics, or PhysicsAt least 6+ years working with a variety of programming languages such as Java, Python, C++, Rust, Go, JavaScript, etc.At least 2+ years previous experience as a technical lead or people manager of software engineersExperience building software solutions involving significant amounts of data processing ...

scale data sets with structured or unstructured data Experience in building user facing applications over large amounts of data using technologies like React, Angular, JavaScript etc. Experience implementing process improvements and automation Skills that will help Global Risk Management experience High level of intellectual curiosity Experience implementing strategic process improvements ...

expertise in modern cloud data platforms (Snowflake, Databricks, BigQuery, Redshift) and data ingestion patterns (batch, streaming, CDC).Hands-On Development - Proficiency in programming (e.g., JavaScript, Python, SQL, R) and data frameworks like pandas or Jupyter.Excellent Communication - Strong presentation skills; adept at explaining complex ideas and guiding stakeholders toward impactful solutions.Curiosity ...

roles.Deep knowledge of the ServiceNow platform and relevant product areas, with the ability to shape solutions across multiple workflows and modules.Strong technical expertise in JavaScript, platform APIs, REST/SOAP web services, integration patterns, data modelling and enterprise integration technologies.Experience designing CMDB, configuration management and service-management solutions, supported ...

resolving firmware, hardware, and system integration issues.Experience using Git and other version control systems to manage software development and collaboration workflows.Programming experience with Python, JavaScript, Visual Basic, etc.Proficiency with MS Office Suite (Outlook, Word, Excel, PowerPoint, and Teams)Able to Travel to customer site for design review meetings ...

object oriented software with languages such as C#, Java, C++, Golang, Rust, Python or Ruby (this list is not exhaustive).- Proven experience with JavaScript, CSS and JavaScript libraries or frameworks such as React, Vue.js or Angular.- Great team spirit with a problem-solving attitude.- A good dose of humility ...

guides consumers through the complete online customer journey, from their first visit through identity verification, e-signature and submission. As a Junior Full-Stack JavaScript Developer, you'll contribute across a React front end, Node.js services and Microsoft SQL Server. You'll work on real customer-facing features while developing … your skills through practical support, code review and clear engineering standards. This role would suit an early-career developer with strong JavaScript fundamentals, evidence of practical projects and the curiosity to learn how reliable software is built for a regulated consumer environment. What you'll do Build and improve customer ...

skills Strong communication with technical and non-technical stakeholders Strong risk-based decision-making and pragmatic trade-off skills Strong programming ability in C#, JavaScript, TypeScript, or another relevant automation language Deep understanding of Page Object Model, Screenplay, API client abstraction, test fixtures, reusable test data builders, and service mocks … application testing, especially Angular-based applications Experience testing UI behaviour, forms, validation, routing, authentication flows, and browser compatibility Basic understanding of HTML, CSS, JavaScript, and browser developer tools Experience testing REST APIs and strong knowledge of API authentication, authorisation, routing, middleware behaviour, configuration, validation, and error handling Good understanding ...

BERT, Llama, Gemini) and applying them to real-world problems.Strong backend engineering expertise, including RESTful APIs and micro-services design.Proficiency in Python/JavaScript and familiarity with AI frameworks (e.g., LangChain, PydanticAI).Solid understanding of cloud computing (AWS, GCP, or Azure), containerisation (Docker, Kubernetes), and Infrastructure-as-Code (Terraform).Proven … ability to thrive in fast-paced environments.Excellent communication and collaboration skills across diverse teams.Preferred qualifications:Proficiency in C# or Java.Frontend development experience with JavaScript/TypeScript and frameworks such as React.Experience developing Generative AI applications, including model fine-tuning and prototyping.Awareness of ethical AI practices and emerging standards ...

Llama, Gemini) and applying them to real‐world problems. Strong backend engineering expertise, including RESTful APIs and micro‐services design. Proficiency in Python/JavaScript and familiarity with AI frameworks (e.g., LangChain, PydanticAI). Solid understanding of cloud computing (AWS, GCP, or Azure), containerisation (Docker, Kubernetes), and Infrastructure‐as‐Code … thrive in fast‐paced environments. Excellent communication and collaboration skills across diverse teams. Preferred qualifications: Proficiency in C# or Java. Frontend development experience with JavaScript/TypeScript and frameworks such as React. Experience developing Generative AI applications, including model fine‐tuning and prototyping. Awareness of ethical AI practices and emerging ...

Llama, Gemini) and applying them to real-world problems. Strong backend engineering expertise, including RESTful APIs and micro-services design. Proficiency in Python/JavaScript and familiarity with AI frameworks (e.g., LangChain, PydanticAI).Solid understanding of cloud computing (AWS, GCP, or Azure), containerisation (Docker, Kubernetes), and Infrastructure-as-Code (Terraform … thrive in fast-paced environments. Excellent communication and collaboration skills across diverse teams. Preferred qualifications: Proficiency in C# or Java. Frontend development experience with JavaScript/TypeScript and frameworks such as React. Experience developing Generative AI applications, including model fine-tuning and prototyping. Awareness of ethical AI practices and emerging ...

Full Stack Python DeveloperSalary: 60,000 to 80,000Location: West LondonWorking arrangement: Predominantly office and customer-site based, with some remote working availableEmployment: Permanent, full-timeMFK Recruitment is recruiting a Full Stack Python Developer for ...

product teams to deliver enterprise-grade authentication and authorization. Proficiency with C#/.NET, Kubernetes, and Postgres is required, with familiarity in React/JavaScript as a plus. This hybrid-UK role emphasizes secure, reliable identity at scale. #J-18808-Ljbffr ...

architecture, and SDLC across a distributed team of engineers, focusing on scalable, secure, and high-quality web and mobile experiences. Ideal candidates bring strong JavaScript/TypeScript skills, hands-on React/React Native experience, and a proactive approach to mentorship, testing, and #J-18808-Ljbffr ...

will lead a team dedicated to developing scalable applications and APIs while balancing technical quality with business needs. Ideal candidates have mentoring experience, strong JavaScript/TypeScript skills, and a passion for building impactful products. This role offers hybrid working options and various employee benefits, including private health insurance ...

design and management of APIs. Strong knowledge of REST/SOAP APIs, JSON/XML, and SQL databases. Experience with Groovy and/or JavaScript, as well as integration patterns, troubleshooting and enterprise integration environments. Location: London or Birmingham Working Model: Initially 5 days onsite per week. ...

Mustard Systems Ltd. in London builds data-driven trading software using Python, Go and JavaScript/TypeScript to deliver real-time insights. The role emphasizes fast delivery, ownership of features, and collaboration with traders and quants to solve real business problems. You will design and implement low-latency data feeds ...

will design robust, scalable code, build seamless user experiences, and ensure secure access controls while collaborating with cross-functional teams. Ideal candidates have strong JavaScript/TypeScript, React and Node.js experience, plus API design, NoSQL (Mongo), and OAuth-like flows. #J-18808-Ljbffr ...