Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations
Locations
Salaries
Date posted
Type of Company
Job types
Locations
23 Permanent API jobs in Addlestone + 20 miles
204 exact matches jobs are outside your preferred location
)
The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Continually ideate, scope, develop, deliver, test and iterate features for the constantly evolving and growing API Platform. Act as subject matter expert for API Platform and services to support customer integrations on occasion
The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Continually ideate, scope, develop, deliver, test and iterate features for the constantly evolving and growing API Platform. Act as subject matter expert for API Platform and services to support customer integrations on occasion
NEW
)
Design and architect full-stack automation frameworks covering Web, Mobile, API, Digital, and Database testing. Deep expertise in full-stack test automation: Web, API, Mobile/Digital, Database, and TDM solutions.
Design and architect full-stack automation frameworks covering Web, Mobile, API, Digital, and Database testing. Deep expertise in full-stack test automation: Web, API, Mobile/Digital, Database, and TDM solutions.
NEW
)
Build and work with modern API and microservices architectures
Build and work with modern API and microservices architectures
NEWEQUALITY BOOST
)
Experience creating RESTful APIs and ensuring API extensibility
Experience creating RESTful APIs and ensuring API extensibility
NEW
)
Systems Engineer - Enterprise Technology
Systems Engineer - Enterprise Technology
Randstad Digital
EC1, City of London
£250000 - £350000 per annum
Proficiency with the administration, integration, and API capabilities of SaaS platforms such as Okta, Google Workspace, Atlassian products, and Slack. * Familiarity with authentication and provisioning methods like SAML, OIDC, SCIM, and non-standard API-based workflows.
Proficiency with the administration, integration, and API capabilities of SaaS platforms such as Okta, Google Workspace, Atlassian products, and Slack. * Familiarity with authentication and provisioning methods like SAML, OIDC, SCIM, and non-standard API-based workflows.
NEWFEATURED
)
Senior Backend Engineer (Platform & Security)
Senior Backend Engineer (Platform & Security)
Ventula Consulting Limited
The City, EC3V 9DU
Up to £140,000 per annum
Strong understanding of distributed systems, microservices architecture, and API design.
Strong understanding of distributed systems, microservices architecture, and API design.
Senior Android Engineer (Native Integration & Security)
Senior Android Engineer (Native Integration & Security)
Ventula Consulting Limited
The City, EC3V 9DU
Up to £140,000 per annum
Build a robust, efficient, and scalable client-side API integration layer to consume real-time security signals (like our proprietary Scam_Score) from the AI Core. Partner with the Senior Backend Engineer (Application & AI Orchestration) to define the API contracts and real-time data flow needed to power the Security Shield.
Build a robust, efficient, and scalable client-side API integration layer to consume real-time security signals (like our proprietary Scam_Score) from the AI Core. Partner with the Senior Backend Engineer (Application & AI Orchestration) to define the API contracts and real-time data flow needed to power the Security Shield.
Senior Android Engineer (UI/UX & Welcome Manager)
Senior Android Engineer (UI/UX & Welcome Manager)
Ventula Consulting Limited
The City, EC3V 9DU
Up to £140,000 per annum
API & Backend Integration: Partner with our backend (Application & AI Orchestration) engineers to define and integrate the client-side APIs and data models required to power the Welcome Manager's features, from live transcription to post-call entity-extracted summaries.
API & Backend Integration: Partner with our backend (Application & AI Orchestration) engineers to define and integrate the client-side APIs and data models required to power the Welcome Manager's features, from live transcription to post-call entity-extracted summaries.
)
Salesforce Solution Architect - Remote - London - We're looking for an experienced Salesforce Solution Architect to design, lead, and deliver scalable Salesforce solutions across multiple clouds and integrations. You'll take ownership of the end-to-end architecture, mentor teams, and shape high-impact solutions that drive business success. Key Responsibilities * Lead Salesforce architecture and guide delivery teams. * Design scalable, best-practice solutions and proof-of-concepts. * Collaborate with stakeholders to ensure seamless delivery. * Stay ahead of new Salesforce releases and innovations. What You'll Bring * 5+ years of Salesforce implementation experience. * Strong expertise in Apex, LWC, Aura, VisualForce & REST/SOAP APIs. * Solid grasp of SOQL, SOSL & integration patterns. * Salesforce Certified (PD1, Admin, App Builder).
Salesforce Solution Architect - Remote - London - We're looking for an experienced Salesforce Solution Architect to design, lead, and deliver scalable Salesforce solutions across multiple clouds and integrations. You'll take ownership of the end-to-end architecture, mentor teams, and shape high-impact solutions that drive business success. Key Responsibilities * Lead Salesforce architecture and guide delivery teams. * Design scalable, best-practice solutions and proof-of-concepts. * Collaborate with stakeholders to ensure seamless delivery. * Stay ahead of new Salesforce releases and innovations. What You'll Bring * 5+ years of Salesforce implementation experience. * Strong expertise in Apex, LWC, Aura, VisualForce & REST/SOAP APIs. * Solid grasp of SOQL, SOSL & integration patterns. * Salesforce Certified (PD1, Admin, App Builder).
NEWFEATURED
)
Fullstack with C# Dot net HTML Web Software Developer
Fullstack with C# Dot net HTML Web Software Developer
Nexus Jobs
RM12, Hornchurch
From £50,000 to £70,000 per annum
Our Client is leader in the development of software for the financial sector. We are looking for a creative, detail-orientated Web Developer to join our Web Development team. You must have at least 5 years experience of working as a Fullstack Web Software Developer with C# Dot Net HTML and CSS. Within the Web Development team, you will have the opportunity to enjoy working with a range of web technology across the full stack. Our client base is growing and as part of this growth we are looking to improve and enhance our web-oriented product offerings. We are looking to recruit highly motivated and creative web developers who can be instrumental in delivering an ambitious digital roadmap. Ideally, we are looking for Web Developers with five plus years work experience. Additionally, candidates should be experienced in debugging and profiling applications associated with
Our Client is leader in the development of software for the financial sector. We are looking for a creative, detail-orientated Web Developer to join our Web Development team. You must have at least 5 years experience of working as a Fullstack Web Software Developer with C# Dot Net HTML and CSS. Within the Web Development team, you will have the opportunity to enjoy working with a range of web technology across the full stack. Our client base is growing and as part of this growth we are looking to improve and enhance our web-oriented product offerings. We are looking to recruit highly motivated and creative web developers who can be instrumental in delivering an ambitious digital roadmap. Ideally, we are looking for Web Developers with five plus years work experience. Additionally, candidates should be experienced in debugging and profiling applications associated with
)
Senior Technical Business Analyst
Senior Technical Business Analyst
REC SOLUTIONS LIMITED
The City, EC4
Competitive base salary plus bonus and benefits
Technical documentation Produce and maintain detailed technical and functional documentation, including API specifications, configuration workflows, and integration guides. * Proven ability to produce and maintain high-quality technical documentation and API specifications suitable for both engineering and client consumption.
Technical documentation Produce and maintain detailed technical and functional documentation, including API specifications, configuration workflows, and integration guides. * Proven ability to produce and maintain high-quality technical documentation and API specifications suitable for both engineering and client consumption.
NEW
Senior Backend Engineer (Application & AI Orchestration)
Senior Backend Engineer (Application & AI Orchestration)
Ventula Consulting Limited
The City, EC3V 9DU
Up to £140,000 per annum
API & Application Development? Partner closely with the Senior Android Engineers to define robust API contracts and ensure a seamless, low-latency experience for the live transcript and mid-call intervention features.
API & Application Development? Partner closely with the Senior Android Engineers to define robust API contracts and ensure a seamless, low-latency experience for the live transcript and mid-call intervention features.
Senior Backend Engineer (Telco Integration Lead)
Senior Backend Engineer (Telco Integration Lead)
Ventula Consulting Limited
The City, EC3V 9DU
Up to £140,000 per annum
We are seeking a foundational engineer to own our single greatest strategic asset: our unique, privileged access to network-level intelligence via the GSMA CAMARA API standard. Own and build the Security Signal Ingestion path, the secure, low-latency, and out-of-band data channel connecting to our founding members' network API gateways. Ensure all network API integrations meet the stringent P99 latency budgets (e.g., < 150ms) required to support our sub-500ms Time-to-Trust product goal. Collaborate with the platform team to build a parallel development path using mocked data to mitigate risks of network API delays. Deep understanding of API design (REST, gRPC, Webhooks) and API security (OAuth 2.0, mTLS, JWTs).
We are seeking a foundational engineer to own our single greatest strategic asset: our unique, privileged access to network-level intelligence via the GSMA CAMARA API standard. Own and build the Security Signal Ingestion path, the secure, low-latency, and out-of-band data channel connecting to our founding members' network API gateways. Ensure all network API integrations meet the stringent P99 latency budgets (e.g., < 150ms) required to support our sub-500ms Time-to-Trust product goal. Collaborate with the platform team to build a parallel development path using mocked data to mitigate risks of network API delays. Deep understanding of API design (REST, gRPC, Webhooks) and API security (OAuth 2.0, mTLS, JWTs).
Experience creating RESTful APIs and ensuring API extensibility.
Experience creating RESTful APIs and ensuring API extensibility.
NEW
)
Proficient in hands-on development, coding, and API design.
Proficient in hands-on development, coding, and API design.
NEW
)
Power Platform Developer
Power Platform Developer
Cathcart Technology
London
£65000.00 - £72500.00 per annum + Bonus & Pension etc
A well-respected consultancy is looking for a talented Power Platform Developer to join their growing Digital Services team in London (hybrid). This is a great opportunity to work across multiple sectors ranging from finance all the way to health analytics where you'll be helping to design and deliver innovative digital solutions that make a real difference. This company is known for empowering its people to explore new technologies and shape how the business works. You'll be joining a supportive, collaborative environment and tight-knit team where your ideas will be valued and your work will have real visibility. The Role - You'll play a key part in designing, building and maintaining business applications, workflows and automations using the Microsoft Power Platform. You'll work with Power Apps, Power Automate, Power BI and Dataverse to deliver scalable, data-driven
A well-respected consultancy is looking for a talented Power Platform Developer to join their growing Digital Services team in London (hybrid). This is a great opportunity to work across multiple sectors ranging from finance all the way to health analytics where you'll be helping to design and deliver innovative digital solutions that make a real difference. This company is known for empowering its people to explore new technologies and shape how the business works. You'll be joining a supportive, collaborative environment and tight-knit team where your ideas will be valued and your work will have real visibility. The Role - You'll play a key part in designing, building and maintaining business applications, workflows and automations using the Microsoft Power Platform. You'll work with Power Apps, Power Automate, Power BI and Dataverse to deliver scalable, data-driven
)
3 Days of work in the office - Job Summary * Migrate on-premise services to OCP in AWS. * Update pipelines to use in-house Trident solution. * Upgrade all components from Spring Boot 3.5 to 4. * Creation of new services or data sinks that are single responsibility and publish/consume from Kafka. * Service decommissions. * BAU work. Job Requirements * Java 17, 21 * Junit 5, Cucumber * Spring Boot 3, 4 * Tooling (Gradle, GitHub, Nexus, Artifactory, Sonar, Jacoco) * Kafka * Kubernetes, Helm * Databases (Preferably HBase, PostgreSQL) * Jenkins and CICD * Kafka Streams, Data sinks * OCP * RabbitMQ * Observability (Datadog, Grafana, Logging concepts and traces, Logback) * AWS * NoSQL datastores (Mongo, DynamoDB) * Security (Kerberos, JWT, Hashi Corp Vault, CVEs) * Design principles (Event Driven, testing, migrations, SOA, microservices, APIs)
3 Days of work in the office - Job Summary * Migrate on-premise services to OCP in AWS. * Update pipelines to use in-house Trident solution. * Upgrade all components from Spring Boot 3.5 to 4. * Creation of new services or data sinks that are single responsibility and publish/consume from Kafka. * Service decommissions. * BAU work. Job Requirements * Java 17, 21 * Junit 5, Cucumber * Spring Boot 3, 4 * Tooling (Gradle, GitHub, Nexus, Artifactory, Sonar, Jacoco) * Kafka * Kubernetes, Helm * Databases (Preferably HBase, PostgreSQL) * Jenkins and CICD * Kafka Streams, Data sinks * OCP * RabbitMQ * Observability (Datadog, Grafana, Logging concepts and traces, Logback) * AWS * NoSQL datastores (Mongo, DynamoDB) * Security (Kerberos, JWT, Hashi Corp Vault, CVEs) * Design principles (Event Driven, testing, migrations, SOA, microservices, APIs)
NEW
)
we are hiring forTechnical Data Architect - location: Central London - Type : Permanent - Hybrid role (2-3 days from client location) We are seeking a highly skilled TechnicalData Architect- with expertise in Databricks, PySpark, and modern data engineering practices. The ideal candidate will lead the design, development, and optimization of scalable data pipelines, while ensuring data accuracy, consistency, and performance across the enterprise Lakehouse platform. This role requires strong leadership, technical depth, and the ability to collaborate with cross-functional teams. Key Responsibilities - Lead the design, development, and maintenance of scalable, high-performance data pipelines on Databricks. Architect and implement data ingestion, transformation, and integration workflows using PySpark, SQL, and Delta Lake.
we are hiring forTechnical Data Architect - location: Central London - Type : Permanent - Hybrid role (2-3 days from client location) We are seeking a highly skilled TechnicalData Architect- with expertise in Databricks, PySpark, and modern data engineering practices. The ideal candidate will lead the design, development, and optimization of scalable data pipelines, while ensuring data accuracy, consistency, and performance across the enterprise Lakehouse platform. This role requires strong leadership, technical depth, and the ability to collaborate with cross-functional teams. Key Responsibilities - Lead the design, development, and maintenance of scalable, high-performance data pipelines on Databricks. Architect and implement data ingestion, transformation, and integration workflows using PySpark, SQL, and Delta Lake.
NEWFEATURED
)
Backend Engineer - Scale Systems with Real Impact ?? Tired of tinkering at the edges? Want to actually shape the backbone of a platform that's transforming how the world's biggest enterprises run their tech? This is one of those rare roles where you get in early, build the foundations, and watch your work scale across global businesses. We're working with a high-growth London startup on a mission to reinvent enterprise software. Their AI-driven platform is already saving household-name customers millions in IT costs, shaving months off ERP project timelines, and making sense of the mess that legacy systems leave behind. SAP is just the beginning - they're building a whole new category of Enterprise System Intelligence. The Role * Build core systems capable of handling tens of millions of lines of code and large-scale LLM workloads.
Backend Engineer - Scale Systems with Real Impact ?? Tired of tinkering at the edges? Want to actually shape the backbone of a platform that's transforming how the world's biggest enterprises run their tech? This is one of those rare roles where you get in early, build the foundations, and watch your work scale across global businesses. We're working with a high-growth London startup on a mission to reinvent enterprise software. Their AI-driven platform is already saving household-name customers millions in IT costs, shaving months off ERP project timelines, and making sense of the mess that legacy systems leave behind. SAP is just the beginning - they're building a whole new category of Enterprise System Intelligence. The Role * Build core systems capable of handling tens of millions of lines of code and large-scale LLM workloads.
NEWFEATURED
)
Location/s: London - Recruiter contact: Nikki George - Mott MacDonald is a global engineering, management, and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices. We work across incredible global industries, delivering exciting work that is defining our future and making an important societal impact in the communities we serve. Our people power our performance we succeed when they do. With countless opportunities to collaborate, learn, and grow, the possibilities for excellence are as varied as every individual. Whether you want to grow as a subject matter expert or broaden your experience with roles across our international community, youre surrounded by global specialists who want to combine their expertise and champion you to be your best. As a proudly employee-owned business, we benefit our clients, our communities, a
Location/s: London - Recruiter contact: Nikki George - Mott MacDonald is a global engineering, management, and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices. We work across incredible global industries, delivering exciting work that is defining our future and making an important societal impact in the communities we serve. Our people power our performance we succeed when they do. With countless opportunities to collaborate, learn, and grow, the possibilities for excellence are as varied as every individual. Whether you want to grow as a subject matter expert or broaden your experience with roles across our international community, youre surrounded by global specialists who want to combine their expertise and champion you to be your best. As a proudly employee-owned business, we benefit our clients, our communities, a
NEW
)
Fixed Term - Logistics - Havant - About the Role - Salary: £52,000 £60,000 + Excellent Benefits - Working Pattern: 37.5 hours per week | 4 day working week Monday to Thursday | Remote working but required to come to the office when needed. Location: Havant, Portsmouth. Here at Lockheed Martin we are seeking a Logistics Software Engineer to enhance its software development capability and provide ongoing support for a suite of applications used by both internal stakeholders and Ministry of Defence (MoD) customers. This role requires an experienced and innovative professional who can assume ownership of both new and existing development projects. The successful candidate will be capable of defining technical requirements, managing development tasks, and delivering high-quality software solutions that meet or exceed customer expectations. Key Responsibilities
Fixed Term - Logistics - Havant - About the Role - Salary: £52,000 £60,000 + Excellent Benefits - Working Pattern: 37.5 hours per week | 4 day working week Monday to Thursday | Remote working but required to come to the office when needed. Location: Havant, Portsmouth. Here at Lockheed Martin we are seeking a Logistics Software Engineer to enhance its software development capability and provide ongoing support for a suite of applications used by both internal stakeholders and Ministry of Defence (MoD) customers. This role requires an experienced and innovative professional who can assume ownership of both new and existing development projects. The successful candidate will be capable of defining technical requirements, managing development tasks, and delivering high-quality software solutions that meet or exceed customer expectations. Key Responsibilities
NEW
)
About the role - We are looking for a dynamic and results-driven Paid Search and App Specialist to drive the growth of our Performance Marketing program globally. The role is pivotal in meeting our revenue and efficiency targets, with accountability for performance against Performance Marketing targets globally. What you'll be doing * Strategy: Work with the Head of Performance Marketing and a team of channel specialists to develop and execute a comprehensive global Paid Search and App strategy. Define the roadmap to achieve revenue and efficiency targets across channels, balancing near-term performance with long-term growth. * Performance management: Be hands-on in our accounts, optimising complex, high-spending global programs across Google Ads (Search & UAC) and Apple Search Ads (ASA). Manage account structures, campaign design, and bidding strategies to maximise R
About the role - We are looking for a dynamic and results-driven Paid Search and App Specialist to drive the growth of our Performance Marketing program globally. The role is pivotal in meeting our revenue and efficiency targets, with accountability for performance against Performance Marketing targets globally. What you'll be doing * Strategy: Work with the Head of Performance Marketing and a team of channel specialists to develop and execute a comprehensive global Paid Search and App strategy. Define the roadmap to achieve revenue and efficiency targets across channels, balancing near-term performance with long-term growth. * Performance management: Be hands-on in our accounts, optimising complex, high-spending global programs across Google Ads (Search & UAC) and Apple Search Ads (ASA). Manage account structures, campaign design, and bidding strategies to maximise R
NEW
)
Project Title: ??AI-Powered CCS Compliance Reporting System? We are a global technology company, driving energy innovation for a balanced planet. At SLB we create amazing technology that unlocks access to energy for the benefit of all. That is our purpose. As innovators, that has been our mission for 100 years. We are facing the worlds greatest balancing act- how to simultaneously reduce emissions and meet the worlds growing energy demands. Were working on that answer. Every day, a step closer. Our collective future depends on decarbonizing the fossil fuel industry, while innovating a new energy landscape. Its what drives us. Ensuring progress for people and the planet, on the journey to net zero and beyond. For a balanced planet. Our purpose: Together, we create amazing technology that unlocks access to energy for the benefit of all.
Project Title: ??AI-Powered CCS Compliance Reporting System? We are a global technology company, driving energy innovation for a balanced planet. At SLB we create amazing technology that unlocks access to energy for the benefit of all. That is our purpose. As innovators, that has been our mission for 100 years. We are facing the worlds greatest balancing act- how to simultaneously reduce emissions and meet the worlds growing energy demands. Were working on that answer. Every day, a step closer. Our collective future depends on decarbonizing the fossil fuel industry, while innovating a new energy landscape. Its what drives us. Ensuring progress for people and the planet, on the journey to net zero and beyond. For a balanced planet. Our purpose: Together, we create amazing technology that unlocks access to energy for the benefit of all.
NEW
)
The Finance Systems & IT Support Analyst acts as the dedicated technical specialist for all Finance-related systems, providing expert-level support, system administration, and data management across platforms such as Microsoft Dynamics, SQL Server, Visual Studio, Power Bi, Metabase and associated tools. In addition to Finance systems expertise, this role provides general IT function, contributing to the stability, integration, and performance of business-critical applications across the organisation. Key Responsibilities - Finance Systems Administration & Support * Serve as the primary IT point of contact for Finance systems, ensuring smooth operation and timely issue resolution. * Support and administer Microsoft Dynamics, Evision and related financial applications. * Develop and maintain SQL scripts, queries, and reports to support Finance data analysis and system .
The Finance Systems & IT Support Analyst acts as the dedicated technical specialist for all Finance-related systems, providing expert-level support, system administration, and data management across platforms such as Microsoft Dynamics, SQL Server, Visual Studio, Power Bi, Metabase and associated tools. In addition to Finance systems expertise, this role provides general IT function, contributing to the stability, integration, and performance of business-critical applications across the organisation. Key Responsibilities - Finance Systems Administration & Support * Serve as the primary IT point of contact for Finance systems, ensuring smooth operation and timely issue resolution. * Support and administer Microsoft Dynamics, Evision and related financial applications. * Develop and maintain SQL scripts, queries, and reports to support Finance data analysis and system .
NEWPREMIUM
)
Senior Data Engineer SQL BigQuery GCP
Senior Data Engineer SQL BigQuery GCP
Client Server
EC2A, City of London
£90000 - £110000 per annum + benefits
Are you a data technologist with Media Streaming experience? You could be progressing your career in a senor, hands-on role at one of Europe's most successful streaming and social media platforms. * Salary to £110k * Employee stock options plan * Flexible vacation and public holidays allowing you 35 days of annual leave * Creativity and Wellness package covering everything from gym memberships, photography, language courses, books * Professional development allowance covering things like books, conferences and training * Remote working most of the time if desired (x1 month in London) * A sociable office environment with free snacks, drinks and lunch if you are in the office - As a Senior Data Engineer you'll design, build and maintain high-performance services for content modelling, serving and integration, develop data pipelines (both batch and streaming) using cloud
Are you a data technologist with Media Streaming experience? You could be progressing your career in a senor, hands-on role at one of Europe's most successful streaming and social media platforms. * Salary to £110k * Employee stock options plan * Flexible vacation and public holidays allowing you 35 days of annual leave * Creativity and Wellness package covering everything from gym memberships, photography, language courses, books * Professional development allowance covering things like books, conferences and training * Remote working most of the time if desired (x1 month in London) * A sociable office environment with free snacks, drinks and lunch if you are in the office - As a Senior Data Engineer you'll design, build and maintain high-performance services for content modelling, serving and integration, develop data pipelines (both batch and streaming) using cloud
NEWPREMIUM