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        Contract Developer - Node.js, REST API, SIP, VOIP

        Reed Technology
        RG12, Bracknell
        £500 - £550 per day
        Contract Developer - Node.js development, REST API design, and SIP-based communications * Duration: 3 months (Outside IR35) * Location: Bracknell / Hybrid Contract Developer with deep expertise in Node.js development, REST API design, and SIP-based communications. This role is crucial for supporting the migration of legacy device management, call control, and configuration workflows to a secure, scalable cloud environment. * Cloud Migration & Refactoring: Analyse existing applications to identify dependencies on on-prem infrastructure and design cloud-native solutions. Refactor services to enhance scalability and reliability in the cloud. * Service & API Development: Develop and maintain secure REST APIs for functionalities such as SIP authentication, call control, and real-time data interactions.
        Contract Developer - Node.js development, REST API design, and SIP-based communications * Duration: 3 months (Outside IR35) * Location: Bracknell / Hybrid Contract Developer with deep expertise in Node.js development, REST API design, and SIP-based communications. This role is crucial for supporting the migration of legacy device management, call control, and configuration workflows to a secure, scalable cloud environment. * Cloud Migration & Refactoring: Analyse existing applications to identify dependencies on on-prem infrastructure and design cloud-native solutions. Refactor services to enhance scalability and reliability in the cloud. * Service & API Development: Develop and maintain secure REST APIs for functionalities such as SIP authentication, call control, and real-time data interactions.
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        About Dune Dune is on a mission to make crypto data accessible. Were a collaborative multi-chain analytics platform used by thousands of developers, analysts, & investors to understand the on-chain world and the frontiers of finance. Were a team of ~55 employees, working together across Europe and eastern US timezones ?. We believe in our mission, and in building a powerful, open product that allows individuals and communities to do deep research into important ecosystems like Bitcoin, Ethereum, Solana, and many more. Were backed by some of the world's best investors. In February 2022, we announced our Series B funding round led by Coatue and Union Square Ventures, an important milestone that allowed us to double down on our mission. Were using the funds to educate, reward and empower a new generation of onchain analysts aka Wizards
        About Dune Dune is on a mission to make crypto data accessible. Were a collaborative multi-chain analytics platform used by thousands of developers, analysts, & investors to understand the on-chain world and the frontiers of finance. Were a team of ~55 employees, working together across Europe and eastern US timezones ?. We believe in our mission, and in building a powerful, open product that allows individuals and communities to do deep research into important ecosystems like Bitcoin, Ethereum, Solana, and many more. Were backed by some of the world's best investors. In February 2022, we announced our Series B funding round led by Coatue and Union Square Ventures, an important milestone that allowed us to double down on our mission. Were using the funds to educate, reward and empower a new generation of onchain analysts aka Wizards
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        Job Role: Software Engineer - Angular Job Type: Contract (part time) Location: Remote (UK only) Daily rate: £425 per day (Outside IR35) * Duration: 12 months * Commitment: 1-2 days per month (final week of each month) * Scope: Maintenance support, system health, troubleshooting, and minor enhancements We are hiring on behalf of our client, an established organisation with a large-scale digital presence. They are seeking reliable ongoing support to maintain and optimise their Contentful-based web platform. This role will initially focus on the current tech stack and then transition to their new website following its launch in late October. This is a 12-month contract requiring approximately three days of support each month. The work is primarily maintenance-focused, ensuring system stability, keeping packages up to date, and addressing issues as they arise.
        Job Role: Software Engineer - Angular Job Type: Contract (part time) Location: Remote (UK only) Daily rate: £425 per day (Outside IR35) * Duration: 12 months * Commitment: 1-2 days per month (final week of each month) * Scope: Maintenance support, system health, troubleshooting, and minor enhancements We are hiring on behalf of our client, an established organisation with a large-scale digital presence. They are seeking reliable ongoing support to maintain and optimise their Contentful-based web platform. This role will initially focus on the current tech stack and then transition to their new website following its launch in late October. This is a 12-month contract requiring approximately three days of support each month. The work is primarily maintenance-focused, ensuring system stability, keeping packages up to date, and addressing issues as they arise.
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        Working hours: This role is available on a part-time, job-share or full-time basis. Location: Flexible on location within the UK. Salary: Attractive salary and benefits package Closing date for applications: 10th October 2025 Ready to shape the future of insurance technology? Join Zurich as our next IT Delivery Manager for Corporate Life & Pensions (CLP) platforms. Were seeking a dynamic and forward-thinking leader to drive our technology team and play a key role in our global digital transformation. In this exciting position, youll collaborate with colleagues across Business Units and Global Digital Platforms, delivering innovative solutions that empower our underwriters and create value for our customers worldwide. At Zurich, we know that great talent comes in many forms.
        Working hours: This role is available on a part-time, job-share or full-time basis. Location: Flexible on location within the UK. Salary: Attractive salary and benefits package Closing date for applications: 10th October 2025 Ready to shape the future of insurance technology? Join Zurich as our next IT Delivery Manager for Corporate Life & Pensions (CLP) platforms. Were seeking a dynamic and forward-thinking leader to drive our technology team and play a key role in our global digital transformation. In this exciting position, youll collaborate with colleagues across Business Units and Global Digital Platforms, delivering innovative solutions that empower our underwriters and create value for our customers worldwide. At Zurich, we know that great talent comes in many forms.
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        Background The world around us is experiencing significant change, the greatest in generations. At Motion Applied, were accelerating the response to that change. Our vision is that our people and technologies will pioneer a better future. Our mission is to achieve breakthroughs in performance. Were at the cutting edge of innovation in industries including automotive transportation and motorsport. We create solutions that drive efficiency and cost-effectiveness. We want to help to reduce the carbon footprint and become more sustainable. Our focus is on electrification and telemetry, control and analytics. To deliver efficient lightweight electric powertrain and vehicle development; motorsport solutions that make series more sustainable and efficient; reliable connectivity solutions for transportation and insightful analytics and monitoring of transport fleets.
        Background The world around us is experiencing significant change, the greatest in generations. At Motion Applied, were accelerating the response to that change. Our vision is that our people and technologies will pioneer a better future. Our mission is to achieve breakthroughs in performance. Were at the cutting edge of innovation in industries including automotive transportation and motorsport. We create solutions that drive efficiency and cost-effectiveness. We want to help to reduce the carbon footprint and become more sustainable. Our focus is on electrification and telemetry, control and analytics. To deliver efficient lightweight electric powertrain and vehicle development; motorsport solutions that make series more sustainable and efficient; reliable connectivity solutions for transportation and insightful analytics and monitoring of transport fleets.
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        Background The world around us is experiencing significant change, the greatest in generations. At Motion Applied, were accelerating the response to that change. Our vision is that our people and technologies will pioneer a better future. Our mission is to achieve breakthroughs in performance. Were at the cutting edge of innovation in industries including automotive transportation and motorsport. We create solutions that drive efficiency and cost-effectiveness. We want to help to reduce the carbon footprint and become more sustainable. Our focus is on electrification and telemetry, control and analytics. To deliver efficient lightweight electric powertrain and vehicle development; motorsport solutions that make series more sustainable and efficient; reliable connectivity solutions for transportation and insightful analytics and monitoring of transport fleets.
        Background The world around us is experiencing significant change, the greatest in generations. At Motion Applied, were accelerating the response to that change. Our vision is that our people and technologies will pioneer a better future. Our mission is to achieve breakthroughs in performance. Were at the cutting edge of innovation in industries including automotive transportation and motorsport. We create solutions that drive efficiency and cost-effectiveness. We want to help to reduce the carbon footprint and become more sustainable. Our focus is on electrification and telemetry, control and analytics. To deliver efficient lightweight electric powertrain and vehicle development; motorsport solutions that make series more sustainable and efficient; reliable connectivity solutions for transportation and insightful analytics and monitoring of transport fleets.
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        Position Overview Job Title Senior Java Developer Engineer (m/f/x) - Corporate Bank Technology - Merchant Solutions Location London Corporate Title Assistant Vice President Deutsche Bank Technology is a global team of tech specialists, spread across multiple hubs and tech centres. We have a strong focus on promoting technical excellence our engineers work at the forefront of financial services innovation using cutting-edge technologies. The Merchant Solutions Technology group provides the Corporate Bank with a dedicated team that capitalizes on the rapidly evolving technology industry to provide our clients with new products and innovation to meet their growing needs within an Agile FinTech-like setup.
        Position Overview Job Title Senior Java Developer Engineer (m/f/x) - Corporate Bank Technology - Merchant Solutions Location London Corporate Title Assistant Vice President Deutsche Bank Technology is a global team of tech specialists, spread across multiple hubs and tech centres. We have a strong focus on promoting technical excellence our engineers work at the forefront of financial services innovation using cutting-edge technologies. The Merchant Solutions Technology group provides the Corporate Bank with a dedicated team that capitalizes on the rapidly evolving technology industry to provide our clients with new products and innovation to meet their growing needs within an Agile FinTech-like setup.
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        Job Title: Social Media Technology Executive Location: 1HQ Type of contract: full-time, permanent Diageo is the worlds leading premium drinks company, a business built on the principles and foundations laid by the giants of our industry. Arthur Guinness, Alexander Walker, and many other dedicated people that followed in their footsteps, cared deeply about the people and businesses they fostered, and the communities in which they operated. Today we stand on the shoulders of these giants and act with the same entrepreneurial spirit. We are a spirited company born of an incredible entrepreneurial legacy. The success of Guinness, Smirnoff, Johnnie Walker, Tanqueray, Baileys and many more brands led to the formation of our company in 1997. And we only thrive today because of the talent of our people to grow our brands, old and new, and keep them strong.
        Job Title: Social Media Technology Executive Location: 1HQ Type of contract: full-time, permanent Diageo is the worlds leading premium drinks company, a business built on the principles and foundations laid by the giants of our industry. Arthur Guinness, Alexander Walker, and many other dedicated people that followed in their footsteps, cared deeply about the people and businesses they fostered, and the communities in which they operated. Today we stand on the shoulders of these giants and act with the same entrepreneurial spirit. We are a spirited company born of an incredible entrepreneurial legacy. The success of Guinness, Smirnoff, Johnnie Walker, Tanqueray, Baileys and many more brands led to the formation of our company in 1997. And we only thrive today because of the talent of our people to grow our brands, old and new, and keep them strong.
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        Job Description Job Type: Perm Location: London. Flexible working: All our roles are open to part-time, job-share and other types of flexibility. We will discuss what is important to you and balancing this with business requirements during the recruitment process. You can read more about Phoenix Flex here. Salary and benefits: Up tp £100,000 plus bonus 16% - 32%, private medical cover, 38 days annual leave, excellent pension, 12x salary life assurance, career breaks, income protection, 3x volunteering days and much more Closing Date: 15th September Were Phoenix Group, were a long-term savings and retirement business. We offer a range of products across our market-leading brands, Standard Life, SunLife, Phoenix Life and ReAssure. Around 1 in 5 people in the UK has a pension with us.
        Job Description Job Type: Perm Location: London. Flexible working: All our roles are open to part-time, job-share and other types of flexibility. We will discuss what is important to you and balancing this with business requirements during the recruitment process. You can read more about Phoenix Flex here. Salary and benefits: Up tp £100,000 plus bonus 16% - 32%, private medical cover, 38 days annual leave, excellent pension, 12x salary life assurance, career breaks, income protection, 3x volunteering days and much more Closing Date: 15th September Were Phoenix Group, were a long-term savings and retirement business. We offer a range of products across our market-leading brands, Standard Life, SunLife, Phoenix Life and ReAssure. Around 1 in 5 people in the UK has a pension with us.
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        Job Description: Responsibilities Understanding and Knowledge of Technologies Bookassist Products You should have a broad knowledge of Bookassist products & the technologies used to build them. When you lack specific knowledge you should be able to acquire it to make changes and improvements to the product. Understanding Build You should understand the build process for Bookassist software, and be involved writing and maintaining for products you own Full control of the development environment set up You should have a good understanding and control of the local environment set up, including remote development.
        Job Description: Responsibilities Understanding and Knowledge of Technologies Bookassist Products You should have a broad knowledge of Bookassist products & the technologies used to build them. When you lack specific knowledge you should be able to acquire it to make changes and improvements to the product. Understanding Build You should understand the build process for Bookassist software, and be involved writing and maintaining for products you own Full control of the development environment set up You should have a good understanding and control of the local environment set up, including remote development.
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        EC1, City of London
        £85,000 per annum
        SoftwareArchitectCentralLondonSwift|TypeScript|Angular.JS£85,000+Benefits AleadingSoftwareConsultancyisseekinganexperiencedSoftwareArchitecttojointheirfast-growinganddynamicteam. Thisisanexcitingopportunitytoworkoncutting-edgeprojects,collaboratingwithengineers,stakeholders,andbusinessleaderstodesignanddeliverhigh-impactsoftwaresystems. * Frontend:Angular.JS/TypeScript * Backend:Swift(SwiftVapor) KeyResponsibilities * Leadthearchitectureanddesignofcomplex,scalablesoftwaresolutions. * Providetechnicalleadership,mentoringengineers,andguidingdecision-makingacrossteams. * Championbestpracticesinsoftwarearchitecture,codequality,anddeliveryprocesses. * Collaboratecloselywithstakeholderstoaligntechnicalstrategywithbusinessgoals. RequiredSkills&Experience * ProvenexperienceinSoftwareArchitectorSeniorEngineeringroles. * StrongexpertisewithAngular.JS/TypeScript.
        SoftwareArchitectCentralLondonSwift|TypeScript|Angular.JS£85,000+Benefits AleadingSoftwareConsultancyisseekinganexperiencedSoftwareArchitecttojointheirfast-growinganddynamicteam. Thisisanexcitingopportunitytoworkoncutting-edgeprojects,collaboratingwithengineers,stakeholders,andbusinessleaderstodesignanddeliverhigh-impactsoftwaresystems. * Frontend:Angular.JS/TypeScript * Backend:Swift(SwiftVapor) KeyResponsibilities * Leadthearchitectureanddesignofcomplex,scalablesoftwaresolutions. * Providetechnicalleadership,mentoringengineers,andguidingdecision-makingacrossteams. * Championbestpracticesinsoftwarearchitecture,codequality,anddeliveryprocesses. * Collaboratecloselywithstakeholderstoaligntechnicalstrategywithbusinessgoals. RequiredSkills&Experience * ProvenexperienceinSoftwareArchitectorSeniorEngineeringroles. * StrongexpertisewithAngular.JS/TypeScript.
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        Role: Golang Developer (Contract) Location: Fully remote (UK-based) Contract: 3 months initially, with strong likelihood of extension Rate: £400-£500 per day, inside IR35 Start Date: ASAP Client: Forward-thinking consultancy supporting a public sector client I'm working with a forward-thinking consultancy that is supporting a public sector client looking to bring on three skilled Golang developers. This is a fully remote contract opportunity with an initial 3-month term, likely to extend further based on project needs. The role is perfect for developers who are looking to work on meaningful projects in a collaborative, innovative environment while enjoying the flexibility of remote work. * Develop and maintain high-quality applications using Golang * Collaborate with cross-functional teams to deliver robust software solutions
        Role: Golang Developer (Contract) Location: Fully remote (UK-based) Contract: 3 months initially, with strong likelihood of extension Rate: £400-£500 per day, inside IR35 Start Date: ASAP Client: Forward-thinking consultancy supporting a public sector client I'm working with a forward-thinking consultancy that is supporting a public sector client looking to bring on three skilled Golang developers. This is a fully remote contract opportunity with an initial 3-month term, likely to extend further based on project needs. The role is perfect for developers who are looking to work on meaningful projects in a collaborative, innovative environment while enjoying the flexibility of remote work. * Develop and maintain high-quality applications using Golang * Collaborate with cross-functional teams to deliver robust software solutions
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        What is the average salary for API in Central London?

        Average salary per year
        £77,499

        The average salary for a API in Central London is £77,499. API in Central London salaries range from £62,499 to £87,499.

        Frequently Asked Questions

        How many part time API jobs are there in Central London?
        There are 0 part time API jobs within 20 miles of Central London available on Jobsite right now.

        What other similar jobs are there to part time API jobs in Central London?
        As well as part time API jobs in Central London, you can find part time .NET Developer, IT, Software Development, amongst many others.