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14 Contract API jobs in The City, City of London + 20 miles
178 exact matches jobs are outside your preferred location
RESPONSABILITIES Translate business and technical needs into clear product requirements, including user stories, acceptance criteria, and data schemas; Prioritize data features and deliverables based on impact, effort, and strategic alignment; Define and enforce data quality standards (accuracy, completeness, timeliness) for published data sets; Collaborate with engineering and governance teams on lineage, metadata, access controls, and compliance (e.g., GDPR); Develop and maintain a data-product roadmap with versioning, documentation, and API endpoints; Craft external documentation such as data dictionaries, schema definitions, sample queries, and usage guides; Define and track adoption metrics (API calls, downloads, user feedback); Facilitate agile ceremonies to align teams on data-product goals; Mentor junior product team members o
RESPONSABILITIES Translate business and technical needs into clear product requirements, including user stories, acceptance criteria, and data schemas; Prioritize data features and deliverables based on impact, effort, and strategic alignment; Define and enforce data quality standards (accuracy, completeness, timeliness) for published data sets; Collaborate with engineering and governance teams on lineage, metadata, access controls, and compliance (e.g., GDPR); Develop and maintain a data-product roadmap with versioning, documentation, and API endpoints; Craft external documentation such as data dictionaries, schema definitions, sample queries, and usage guides; Define and track adoption metrics (API calls, downloads, user feedback); Facilitate agile ceremonies to align teams on data-product goals; Mentor junior product team members o
Add support for new/future API/input language features
Add support for new/future API/input language features
Company Description - Founded by experienced entrepreneurs and engineers in 2016, Pismo is a technology company that provides a comprehensive processing platform for banking, card issuing and financial market infrastructure and helps customers innovate and build the next generation of banking and payment solutions. Pismo joined Visa in 2024. Leveraging Visas solutions, our core platform, and an expanding suite of capabilities, Pismo addresses the technological challenges that large banks, marketplaces, and fintech companies face in migrating from legacy systems to more advanced technology in the market. Pismos cloud-based platform empowers firms to build and launch financial products rapidly, scaling as they grow to have a broader audience while keeping high security and availability standards. Pismos 500+ employees are located in more than 10 countries around the wor
Company Description - Founded by experienced entrepreneurs and engineers in 2016, Pismo is a technology company that provides a comprehensive processing platform for banking, card issuing and financial market infrastructure and helps customers innovate and build the next generation of banking and payment solutions. Pismo joined Visa in 2024. Leveraging Visas solutions, our core platform, and an expanding suite of capabilities, Pismo addresses the technological challenges that large banks, marketplaces, and fintech companies face in migrating from legacy systems to more advanced technology in the market. Pismos cloud-based platform empowers firms to build and launch financial products rapidly, scaling as they grow to have a broader audience while keeping high security and availability standards. Pismos 500+ employees are located in more than 10 countries around the wor
Working knowledge of creating data connections - e.g. SQL and relational databases, DataBricks, JSON files, API services, Data Lakes
Working knowledge of creating data connections - e.g. SQL and relational databases, DataBricks, JSON files, API services, Data Lakes
Proficiency in Python (especially API packages), SQL, Power BI, and Power Automate
Proficiency in Python (especially API packages), SQL, Power BI, and Power Automate
Software Engineer, Data – Query Intelligence & Infrastructure - 6 Month Contract
Software Engineer, Data – Query Intelligence & Infrastructure - 6 Month Contract
Benchsci U.K. Limited
London
Competitive
Your work will involve API development, performance optimization, and maintaining high-performance access to large, interconnected datasets.
Your work will involve API development, performance optimization, and maintaining high-performance access to large, interconnected datasets.
Play a key role in the Practice Management team contributing to frontend, API and infrastructure tasks. * You have experience building and architecting RESTful and GraphQL APIs as well as designing and implementing API integrations.
Play a key role in the Practice Management team contributing to frontend, API and infrastructure tasks. * You have experience building and architecting RESTful and GraphQL APIs as well as designing and implementing API integrations.
As a machine learning engineer, your main responsibility is to conduct the development and productionisation of ML and NLP-based features for CUBEs products - a SaaS Platform (RegPlatform) and an API (RegConnect).
As a machine learning engineer, your main responsibility is to conduct the development and productionisation of ML and NLP-based features for CUBEs products - a SaaS Platform (RegPlatform) and an API (RegConnect).
Integrate messaging campaigns into our existing lifecycle stack (e.g., Braze, WhatsApp Business API). * Technical fluency with tools such as Braze, Twilio, or WhatsApp Business API, and a working knowledge of customer data flows.
Integrate messaging campaigns into our existing lifecycle stack (e.g., Braze, WhatsApp Business API). * Technical fluency with tools such as Braze, Twilio, or WhatsApp Business API, and a working knowledge of customer data flows.
Data Access and Availability: Control and manage access to data for internal and external stakeholders, working with our tech and API teams to ensure seamless data transfer.
Data Access and Availability: Control and manage access to data for internal and external stakeholders, working with our tech and API teams to ensure seamless data transfer.
Implementation of Salesforce Flows to a high standard (e.g. screen flows, triggered flows, API flows)
Implementation of Salesforce Flows to a high standard (e.g. screen flows, triggered flows, API flows)
Through our platform a merchant can connect via a simple API connection to the world's payment ecosystem, increasing conversion at lower cost and satisfying their entire payments needs.
Through our platform a merchant can connect via a simple API connection to the world's payment ecosystem, increasing conversion at lower cost and satisfying their entire payments needs.
NEW
Our API-first platform provides fully automated validators, staking & DeFi protocols access, and comprehensive data and commission management.
Our API-first platform provides fully automated validators, staking & DeFi protocols access, and comprehensive data and commission management.
NEW
You can translate rulebooks or API specs into requirements
You can translate rulebooks or API specs into requirements
API integration and data transformation skills
API integration and data transformation skills
Designing and developing RESTful APIs, with an understanding of basic API security and authentication mechanisms.
Designing and developing RESTful APIs, with an understanding of basic API security and authentication mechanisms.
Serverless (Lambda, API Gateway, EventBridge, Step Functions) and container platforms (ECS/EKS).
Serverless (Lambda, API Gateway, EventBridge, Step Functions) and container platforms (ECS/EKS).
Prompt engineering, LLM API integration, and system reliability patterns
Prompt engineering, LLM API integration, and system reliability patterns
Experience of technical areas and tooling when testing on mobile: Network tools, performance tools, analytics tools, API test tooling.
Experience of technical areas and tooling when testing on mobile: Network tools, performance tools, analytics tools, API test tooling.
Should have adequate understanding of APIs and microservices and should be able to perform testing at API layer. * Good working experience in performance testing and API testing of Energy trading applications for upstream areas. * Should have good working experience in performance testing and API testing of Energy trading applications for upstream areas.
Should have adequate understanding of APIs and microservices and should be able to perform testing at API layer. * Good working experience in performance testing and API testing of Energy trading applications for upstream areas. * Should have good working experience in performance testing and API testing of Energy trading applications for upstream areas.
Strong understanding of identity & access management (OAuth, OIDC, SAML, JWT) and API security.
Strong understanding of identity & access management (OAuth, OIDC, SAML, JWT) and API security.
Knowledge of HSE, Safety and Global Plant Layout practices (i.e., PIP, API, GAP, etc.)
Knowledge of HSE, Safety and Global Plant Layout practices (i.e., PIP, API, GAP, etc.)
Experience in API integration (REST/SOAP) through ERP systems, IoT devices and or third-party logistics platforms. * API/Data Integration Accuracy: % of successful data exchanges between WMS and ERP/third-party systems without manual intervention.
Experience in API integration (REST/SOAP) through ERP systems, IoT devices and or third-party logistics platforms. * API/Data Integration Accuracy: % of successful data exchanges between WMS and ERP/third-party systems without manual intervention.
Experience of technical areas and tooling when testing on mobile: Network tools, performance tools, analytics tools, API test tooling, automation frameworks, platform tools, storefront tools
Experience of technical areas and tooling when testing on mobile: Network tools, performance tools, analytics tools, API test tooling, automation frameworks, platform tools, storefront tools
At Barings, we are as invested in our associates as we are in our clients. We recognize those who work diligently for us and reward them for personal and professional integrity, communication skills, distinct competencies and expertise in specific strategies, ability to collaborate as a team member and true dedication to the interests of our clients. We thank you for your interest in joining the Barings team, and invite you to explore our current employment opportunities. Job Title: Enterprise Architect Location: London or Charlotte, NC / Hybrid - Department: Global Technology & Operations - Reports To: Head of Enterprise Architecture - Level: Associate Director / Director (depending on experience) About Barings Barings is a leading global financial services firm committed to meeting the evolving investment and capital needs of our clients.
At Barings, we are as invested in our associates as we are in our clients. We recognize those who work diligently for us and reward them for personal and professional integrity, communication skills, distinct competencies and expertise in specific strategies, ability to collaborate as a team member and true dedication to the interests of our clients. We thank you for your interest in joining the Barings team, and invite you to explore our current employment opportunities. Job Title: Enterprise Architect Location: London or Charlotte, NC / Hybrid - Department: Global Technology & Operations - Reports To: Head of Enterprise Architecture - Level: Associate Director / Director (depending on experience) About Barings Barings is a leading global financial services firm committed to meeting the evolving investment and capital needs of our clients.