5 of 5 Contract OAuth2 Jobs in the South East

Java Developer

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
passion for building resilient, scalable systems. Nice to have Experience with Hazelcast, Kafka Connect, Schema Registry, or Confluent Platform. Knowledge of security in payments: OAuth2/OpenID Connect, mTLS, HSMs, tokenisation. Background in performance engineering (JMH, Gatling, k6) and chaos/resilience testing. Cloud experience (AWS/GCP/Azure ...

Back end Engineer

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
contract uk wide hybrid Core skills Java, Spring Boot, Spring Data/JPA (Hibernate), PostgreSQL. Eventing: Kafka; RESTful APIs (GraphQL a plus). Security: OAuth2/OIDC, secrets management, secure coding. CI/CD and containerisation: Docker; deploy to AWS and/or PCF on-prem. Responsibilities Own services ...

Lead API Solution Architect

Hiring Organisation
Venn Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£650 - £1,000 per day
cloud environments. Collaborate with enterprise architects and business stakeholders to shape end-to-end solutions. Embed strong API security practices and identity standards (OAuth2, OIDC). Ensure compliance with financial regulations, including data privacy and risk controls. Assess and mitigate security threats in API exposure and integration patterns. Provide technical ...

Senior Technical Integration Manager Oracle Fusion Cloud

Hiring Organisation
Circle Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £700 per day
years of experience in integration development , with at least 5 + years demonstrated experience with OIC Experience securing integrations via OCI Vault , certificates, and OAuth2 tokens Good/strong understanding of oracle fusion cloud implementation Proven hands-on expertise designing and building integrations using OIC adapters, REST/SOAP APIs ...

AI Engineer

Hiring Organisation
KBC Technologies UK LTD
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
models into systems using APIs and message brokers such as REST and Kafka. Implement secure systems using modern authentication and authorization standards like OAuth2, JWT, and Azure AD. Apply best practices in AI model evaluation, tuning, and optimization. Work with LLM architectures and frameworks (OpenAI, Anthropic, LangChain, LlamaIndex) to build … grade AI/ML projects, including at least two successful deployments. Strong expertise in: API integration & inter-service communication (REST, Kafka) Authentication/Authorization (OAuth2, JWT, Azure AD) NLP techniques (NER, classification, chunking, summarization, QA) RAG architectures and working with LLMs (OpenAI, Anthropic, etc.) Vector databases (FAISS, Azure AI Search ...