Permanent API Development Jobs in London

73 Permanent API Development Jobs in London

Software Engineer

City Of London, England, United Kingdom
Hybrid / WFH Options
Equifind
ensure they remain a top tier product. This is an exciting time to join the business as the IT are in their growth and development stage. Key duties of this Full Stack Developer role include: You will be working on developing two different tools for the client - one internal … technologies: Laravel Livewire, Laravel Jetstream, Laravel Blade, Laravel Sail, Filament, and Laravel Vapor. Confident front and back end user. A background in secure application development, ideally from regulated financial services or a fast-paced start-up. Extensive experience with Agile Scrum. Minimum of 6 years of experience with PHP … HTML, CSS, Javascript, and SQL Extensive knowledge of PHP 8.2 and proficiency in PostgreSQL. Experience in RESTful API design and development Strong abilities in writing maintainable and scalable code adhering to specific coding standards and styles. Nice to have experience: Experience with application middleware (API gateways, ESBs more »
Posted:

Senior React Native Developer - Technologist

London
Hybrid / WFH Options
Client Server
Senior React Native Developer/Engineer London to £120k Are you a Senior Software Engineer who has expertise with mobile application development (iOS/Android/React Native)? You could be progressing your career as a Senior React Native Developer at a growing tech start-up as they expand … or Android (Java, Kotlin), combined with React Native You have front end experience with React You're familiar with C/CD, automation testing, API development You're keen to work in s start-up environment where you can make a real impact You are degree educated in … As a Senior React Native Developer/Engineer you will earn: Competitive salary to £120k Equity shares Medical, Dental and Optical insurance Continuous career development Opportunity to be a founding member Apply now to find out more about this Senior React Native Developer/Engineer (Full Stack Mobile React more »
Employment Type: Permanent
Salary: £100,000 - £120,000
Posted:

Senior React Native Developer - Technologist

City of London, London, United Kingdom
Hybrid / WFH Options
Client Server
Senior React Native Developer/Engineer London to £120k Are you a Senior Software Engineer who has expertise with mobile application development (iOS/Android/React Native)? You could be progressing your career as a Senior React Native Developer at a growing tech start-up as they expand … or Android (Java, Kotlin), combined with React Native You have front end experience with React You're familiar with C/CD, automation testing, API development You're keen to work in s start-up environment where you can make a real impact You are degree educated in … As a Senior React Native Developer/Engineer you will earn: Competitive salary to £120k Equity shares Medical, Dental and Optical insurance Continuous career development Opportunity to be a founding member Apply now to find out more about this Senior React Native Developer/Engineer (Full Stack Mobile React more »
Employment Type: Permanent, Work From Home
Posted:

Senior Software Engineer

Central London, London, United Kingdom
Hybrid / WFH Options
TMW Unlimited
progressive forward-thinking agency? TMWX is a cutting-edge tech agency dedicated to revolutionising digital experiences through the adoption of a Composable MACH (Microservices, API-first, Cloud-native, Headless) architecture. We have a new opportunity for an enthusiastic and experienced Senior Backend Engineer. Youll be passionate about leveraging the … modern programming languages and frameworks such as C#, Node.js, Python, or Go. Write clean, maintainable, and well-documented code following coding standards and software development best practices. Perform code reviews, ensuring quality and maintainability and provide constructive feedback, and mentor junior engineers to foster a culture of continuous learning … a high degree of automation, clean architecture, and high quality with a customer-centric mindset. Commercial experience of writing and integrating with Microservices and API development. A hunger to seek out new technologies, industry trends, and best practices -- and enjoy sharing that knowledge with others. Have experience with React more »
Employment Type: Permanent, Work From Home
Salary: £70,000
Posted:

Backend Engineer

London Area, United Kingdom
Hybrid / WFH Options
La Fosse
is partnering with a cutting edge start up looking to complement their existing team. You would have a lot of ownership, autonomy, learning and development opportunities within this team, and they put collaboration at the heart of everything they do. They have a really high performing team, yet maintain … a friendly culture. Key Requirements: Python & API development – Flask/FastAPI/Django PostgreSQL + Relational DB’s Good communication skills MSc or PHD in computer science or mathematics Cloud experience – AWS/GCP preferred Nice to have: ML stack in Python Java Terraform Compensation: This role is more »
Posted:

Senior Software Engineer Mobile React Native AI

London
Hybrid / WFH Options
Client Server
Software Engineer/Developer (Full Stack Mobile React Native) London to £120k Are you a Senior Software Engineer who has expertise with mobile application development (iOS/Android/React Native)? You could be progressing your career at a growing tech start-up as they expand their UK presence … C) or Android (Java, Kotlin) and React Native You have front end experience with React You're familiar with C/CD, automation testing, API development You're keen to work in s start-up environment where you can make a real impact You are degree educated in … you: As a Senior Software Engineer/Developer you will earn: Competitive salary to £120k Equity shares Medical, Dental and Optical insurance Continuous career development Opportunity to be a founding member Apply now to find out more about this Senior Software Engineer/Developer (Full Stack Mobile React Native more »
Employment Type: Permanent
Salary: £100,000 - £120,000
Posted:

Data Scientist

London Area, United Kingdom
Vallum Associates
looking for a skilled Data Scientist to join their London-based AI Tech Firm. This individual will play a key role in shaping future development and contributing to various exciting projects. Based in our London office, this role offers excellent opportunities for professional growth, where you'll support products … and German, with French being a plus. Desirable experience in Consulting or Customer-facing Data Science roles, Data Engineering, MLOps, WebApps (Javascript, RShiny, Dash), API development, and enterprise data science tools. Passion for teaching or public speaking is advantageous. Responsibilities include: Developing solutions for real-world problems and more »
Posted:

React Engineer - £60k - AI Start-up - 2-3+ years of experience + Node/ Firebase

South East London, England, United Kingdom
Opus Recruitment Solutions
something of this nature is very important!They are looking for a solid understanding of JavaScript using React.js + FirebaseAny experience with Node.js/API development is a big plus as they are keen to help an ambitious Frontend Engineer become Full-Stack over time (if that's more »
Posted:

Senior Backend Engineer

Central London, London, United Kingdom
Hybrid / WFH Options
TMW Unlimited
progressive forward-thinking agency? TMWX is a cutting-edge tech agency dedicated to revolutionising digital experiences through the adoption of a Composable MACH (Microservices, API-first, Cloud-native, Headless) architecture. We have a new opportunity for an enthusiastic and experienced Senior Backend Engineer. Youll be passionate about leveraging the … modern programming languages and frameworks such as C#, Node.js, Python, or Go. Write clean, maintainable, and well-documented code following coding standards and software development best practices. Perform code reviews, ensuring quality and maintainability and provide constructive feedback, and mentor junior engineers to foster a culture of continuous learning … a high degree of automation, clean architecture, and high quality with a customer-centric mindset. Commercial experience of writing and integrating with Microservices and API development. A hunger to seek out new technologies, industry trends, and best practices -- and enjoy sharing that knowledge with others. Have experience with React more »
Employment Type: Permanent, Work From Home
Salary: £70,000
Posted:

Backend Engineer

South East London, England, United Kingdom
Hybrid / WFH Options
La Fosse
is partnering with a cutting edge start up looking to complement their existing team. You would have a lot of ownership, autonomy, learning and development opportunities within this team, and they put collaboration at the heart of everything they do. They have a really high performing team, yet maintain … a friendly culture.Key Requirements:Python & API development – Flask/FastAPI/DjangoPostgreSQL + Relational DB’sGood communication skillsMSc or PHD in computer science or mathematics Cloud experience – AWS/GCP preferredNice to have:ML stack in PythonJavaTerraformCompensation:This role is offering up to £70,000 + benefitsHow to more »
Posted:

Full Stack / Application Developer

London Area, United Kingdom
DGH Recruitment
/hybrid 3 days per week in Office– 50k per annum. My prestigious legal client is looking for an Application Developer to join their development team in London. The successful candidate will be joining a team made up of experienced Developers and will be working on a wide range … of projects focusing on Web and API development. The Application Developer will be involved in the full development life cycle from reviewing system analysis all the way through to Implementation and documentation. It is important that you have excellent communication and stakeholder management skills as you will be … solutions and liaising closely with other areas within the IT Department and wider business. Key Skills and experience required. • Excellent understanding and knowledge of development principles and methodologies. • JavaScript • Angular • ASP.Net • Web API • TypeScript • C#, .NET • Azure DevOps • GIT • RESTful web services • HTML • CSS • Entity Framework Core Applications more »
Posted:

Senior Software Engineer

South East London, England, United Kingdom
Hybrid / WFH Options
Bridgewater Resourcing Solutions Limited
platform, the company is now hiring for a senior level Back-End Software Developer who is looking to take ownership of the back-end development and DevOps function.The role will offer autonomy, ownership, creativity, problem-solving while offering flexibility in working. This is an opportunity to make a big … etc.Your strongest Languages will be: Javascript, Go, SQLKey Responsibilities of our Lead Back-End Software EngineerYou will: Implement backend functionality and features e.g building API for front-end, optimising response speed, image compression, payments-processing, OAuth management amongst others.Handle backend integration for services such as a code execution platform … authentication, and other API’s.DevOps - Handle deployments to production. Maintain self-hosted services on bare metal server infrastructure.Database management - Maintain efficiency, handle migrations, and manage the Postgres database. Identify performance bottlenecks.Analytics - build out queries and data analytics to monitor and find ways to improve the student experience as well more »
Posted:

Laravel Developer

London Area, United Kingdom
Hybrid / WFH Options
Opus Recruitment Solutions
be great. The role is fully remote, outside IR35 and has a possibility of extension after 6 months. Essential skills: PHP | Laravel | Vue | MySQL | API Development Nice to have: ERP experience. If you are interested, then please send me a copy of your most up to date CV more »
Posted:

Technical Lead

Greater London, England, United Kingdom
UST
Technical Lead (API design) UST is currently recruiting for a Technical Lead (fixed term contract) role who comes with a strong technical background to join their award-winning team. About the role The successful candidate will be a team player with a proven background of managing IT teams, a … solid technical background and possess excellent analytical, problem-solving skills and excellent communication and stakeholder management skills. Key Deliverables: o Experience in managing IBM API Connect Gateway projects o Experience in managing and delivering the technical aspects of migration projects o Be well-versed in REST fundamentals and API design best practices. o Closely work with API developers/testers/analysts/engineers and help them with their day-to-day constraints and supervise their work. o API design using tools provided by the IBM API Connect V5/V10 suite. Experience on Apigee more »
Posted:

Full stack Principal Engineer

Greater London, England, United Kingdom
Response Informatics
of continuous learning and collaboration Responsibilities: * Architect and develop scalable and performant mission critical web applications using Next.js for front-end and Node.js for API development. * Lead the mobile development on iOS and Android. * Mentor a team of engineers, providing guidance on best practices, design patterns, and coding … commerce platforms and solutions is highly desirable. * Stay abreast of emerging technologies and industry trends, evaluating their potential impact on the product roadmap and development processes * Champion continuous improvement, performance optimisation, and security throughout the development lifecycle Skills: * Proven experience as a hands-on engineer with proficiency in … JavaScript, React, TypeScript, and Next.js for front-end and Node.js for back-end development * Proven experience as a hands-on engineer with proficiency in React Native or iOS or Android for mobile app development. * Hands on experience in Native Android and iOS development using Kotlin/Swift would more »
Posted:

Senior C# Developer

South East London, England, United Kingdom
Hybrid / WFH Options
Nicoll Curtin
Applications team, contributing significantly to the design, implementation, and maintenance of business and information system solutions. Your expertise will be pivotal in guiding the development process, ensuring alignment with business requirements, and delivering successful outcomes.Responsibilities:Design technical solutions for new software applications or enhancements to existing ones.Develop and conduct … and established software.Review code and test software developed by team members.Document application details to facilitate future maintenance.Provide support for production issues, particularly related to development activities.Collaborate with management and stakeholders to define programming tasks.Adhere strictly to established programming standards.Recommend improvements to internal standards and procedures as needed.Key Skills:Strong … command of C# programming languageProficiency in .NET frameworkExperience with Web API developmentFamiliarity with JavaScript and Angular for front-end developmentCompetence in SQL database managementThis is a full-time position with a competitive salary of up to £78k, inclusive of bonus and benefits. The role requires on-site presence up more »
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Senior Backend Engineer (Node.JS, Ruby, Kafka)

South East London, England, United Kingdom
Zebra People
improving search functionality within the platform.Because of this, there’ll be the opportunity for you to write a lot of new code, increase APIs development, and ultimately ensure the platform's software components are versatile enough to effectively tackle various user cases and scenarios.What experience do I need?You … a product based company. Primarily you’ll be working on the backend of their stack with Node.JS, Ruby, and Kafka, impacting everything from the development of APIs and the user interface to the database.However, they know that a good developer can pick up a new language quickly, so they more »
Posted:

Senior Backend Engineer (Node.JS, Ruby, Kafka)

Greater London, England, United Kingdom
Zebra People
search functionality within the platform. Because of this, there’ll be the opportunity for you to write a lot of new code, increase APIs development, and ultimately ensure the platform's software components are versatile enough to effectively tackle various user cases and scenarios. What experience do I need … a product based company. Primarily you’ll be working on the backend of their stack with Node.JS, Ruby, and Kafka, impacting everything from the development of APIs and the user interface to the database. However, they know that a good developer can pick up a new language quickly, so more »
Posted:

Senior Full Stack developer

Greater London, England, United Kingdom
GIMO Global Interactive Marketing Online Ltd
as NetBet, 777, and betFIRST We have a very multicultural team here at GIMO with employees specialising in all aspects of Marketing, Affiliation Marketing, Development, Web Design, Content, Analysis, Software Development and Customer Service. THE ROLE We are looking for a full-time Senior Full Stack Developer with … at least 5 years of software development experience having a focus on front-end & back-end development. (2-5 years’ experience in React.JS, Node.JS). The candidate will develop new application features and maintain existing ones, someone who is comfortable with both front and back end programming. This position … experience as a Full Stack Developer or similar role Proven prowess with PHP and React (with React Native or Next.js framework) Mastery of RESTful API development. In-depth understanding of MySQL and Redis. Familiarity with Kafka Acquaintance with TypeScript Nice-to-Haves: Node.js proficiency, especially with websockets. Experience working more »
Posted:

Senior Python API Developer

London Area, United Kingdom
Ocean Red Partners
Senior Python Data API Developer The Role: Ocean Red Partners are currently looking for a Senior Python Data API Developer. The responsibilities include participating in all phases of the software development lifecycle and knowledge transfer where required. This role is a consultative position so will require excellent … style and a genuine focus on customer satisfaction. You will be involved in a variety of activities, typically: Help design and implement functional requirements Development of Python APIs and documentation to support model generation and automation Manage testing and bug fixes Integrate front-end components into applications Implement software … enhancements and suggest improvements Requirements Solid experience as Python Data API Developer Experience developing Python APIs and documentation Experience with automated diagram generation Experience with data pipelines tooling e.g. Databricks Attention to detail with a proven focus on quality BSc in Computer Science, Engineering or relevant field This role more »
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Senior React Native Developer - Technologist

South East London, England, United Kingdom
Hybrid / WFH Options
Client Server
Job DescriptionSenior React Native Developer/Engineer London to £120kAre you a Senior Software Engineer who has expertise with mobile application development (iOS/Android/React Native)?You could be progressing your career as a Senior React Native Developer at a growing tech start-up as they expand … Objective C) or Android (Java, Kotlin), combined with React NativeYou have front end experience with ReactYou're familiar with C/CD, automation testing, API developmentYou're keen to work in s start-up environment where you can make a real impactYou are degree educated in Computer Science or more »
Posted:

Data Product Manager

Chiswick, England, United Kingdom
Hybrid / WFH Options
4GLOBAL PLC
highest data quality in our database, generating data logic for key performance indicator (KPI) calculations for our core products and services, and overseeing the development of APIs by the technical team. This position demands a blend of technical acumen, project management skills, and a deep understanding of data's … role in product development and enhancement. Responsibilities: • Data Integration Management: Oversee the integration process with data provider companies, ensuring accurate data matching and seamless setup of new integrations. • Quality Assurance and Data Logic Development: Ensure the integrity and accuracy of data within our database. Develop and maintain the … logic for KPI calculations that underpin our core products and services, working closely with the technical team to implement these via API development. • Technical Liaison and Support Coordination: Serve as a bridge between the technical team and data providers to facilitate the development and implementation of integrations. Assist more »
Posted:
API Development
London
10th Percentile
£54,250
25th Percentile
£57,500
Median
£77,500
75th Percentile
£87,500
90th Percentile
£97,500