1 to 25 of 29 Contract PostgreSQL Jobs in London

improvement initiatives. Tech Stack Backend: Java 17, Spring Boot, Kafka, REST APIs Frontend: React, TypeScript Cloud: AWS (ECS, Lambda, S3, CloudWatch) CI/CD: GitHub Actions, Docker, Terraform Databases: PostgreSQL, DynamoDB What We're Looking For 3+ years of experience in Java development. Hands-on experience with Apache Kafka in production environments. Strong knowledge of AWS services and cloud-native More ❯

scripting languages including Bash, Perl, Python or Go. Familiar with Agile ways of working. Strong communication skills Nice to have: Working knowledge of Kafka/Docker/Jenkins/Postgres/Liquibase/Java NPPV3 Clearance If interested, with relevant experience, please apply with your latest CV ASAP. # More ❯

in a way that can be tracked and aligned with investment strategies and risk management. The role will have a Back End emphasis, which will be Python, AWS and PostgreSQL but you will also have some ability to contribute towards the React Front End. The project is at inception and the first demo has been approved by the business. It More ❯

Senior .NET/C# Developer (Oracle to PostgreSQL migration) - Finance - Remote Duration: 6 months Rate: £500 - £600 Start: ASAP My client is looking for a Senior Developer to join the team to help with a migration. They are undertaking a strategic transformation of a legacy system built on PHP and Oracle, migrating to a modern architecture using PostgreSQL and .NET … existing team to re-engineer Oracle PL/SQL stored procedures into C# services. Design and implement .NET-based components that integrate with both legacy PHP systems and new PostgreSQL databases. Work closely with business analysts and stakeholders to ensure functional parity and identify opportunities for enhancement. Participate in the design of a hybrid architecture that supports phased migration. Use … years of experience in .NET/C# development, with a strong focus on backend services and data access layers. Proven experience in migrating legacy systems, especially from Oracle to PostgreSQL or similar. Strong understanding of PL/SQL and experience translating stored procedures into application logic. Familiarity with PostgreSQL, including performance tuning and SQL dialect differences. Experience working in hybrid More ❯

years of Back End engineering experience Strong coding skills in Golang (preferred), Java, or another typed language Hands-on experience with RESTful APIs , microservices architecture , and NoSQL/Postgres Familiarity with CI/CD tools such as Jenkins and Git Clear communicator with strong teamwork and problem-solving skills Desirable Skills: Experience with Kafka, GraphQL, gRPC, Docker Test-driven development More ❯

years of backend engineering experience Strong coding skills in Golang (preferred), Java, or another typed language Hands-on experience with RESTful APIs , microservices architecture , and NoSQL/Postgres Familiarity with CI/CD tools such as Jenkins and Git Clear communicator with strong teamwork and problem-solving skills Desirable Skills: Experience with Kafka, GraphQL, gRPC, Docker Test-driven development (TDD More ❯

Private Cloud) and DevOps practices.Key Skills and Experience Required:? Technical Expertise:* Windows Server & Linux administration (basic to intermediate).* Middleware: Tomcat, MQ Series, Kafka.* Databases: Oracle, MS SQL Server, PostgreSQL (SQL basics).* Cloud exposure (AWS, Azure, or private cloud environments).* Scripting: PowerShell, Bash (Python is a plus).* Monitoring: Dynatrace, Splunk, Zabbix, Grafana.* Familiarity with networks and market More ❯

ticking every box. However, experience in any of the following areas would be advantageous: Software development in web technologies or OOP (e.g., Python, Java, etc.) Database tech: Oracle SQL, PostgreSQL, MongoDB Proficient with Linux/Windows command line (Bash, PowerShell) Monitoring: Grafana, Prometheus, ELK, Splunk Agile working and tooling (e.g., Jira, Confluence) Diagnosing and resolving complex system issues ITIL knowledge More ❯

ticking every box. However, experience in any of the following areas would be advantageous: Software development in web technologies or OOP (e.g., Python, Java, etc.) Database tech: Oracle SQL, PostgreSQL, MongoDB Proficient with Linux/Windows command line (Bash, PowerShell) Monitoring: Grafana, Prometheus, ELK, Splunk Agile working and tooling (e.g., Jira, Confluence) Diagnosing and resolving complex system issues ITIL knowledge More ❯

Handling). Experience with SSO (Single Sign On), Elastic and Kibana. Strong communication skills Agile environment experience Nice to have: Working knowledge of Kafka/Docker/Jenkins/Postgres/Liquibase/Java NPPV3 Clearance Immediate availability If interested, with relevant experience, please apply with your latest CV ASAP. Hays Specialist Recruitment Limited acts as an employment agency for More ❯

solutions using OCR, NLP (SpaCy), and ML to automate the processing of documents. Key Responsibilities Develop and maintain automation services using AWS serverless stack (Lambda, CDK, S3, Aurora/Postgres) Implement OCR, NLP, and ML for document analysis and automation risk assessment Lead R&D spikes and validate system improvements through robust data analysis Ensure code quality, testing, observability, and More ❯

is key to success. Our Tech Stack - Frontend: React - Backend: Nest.js, Python/fastapi, LangChain Test Automation: Pact, Jest, Cypress, and Pytest (including AI test automation) - Infrastructure: AWS ECS, PostgreSQL, Kafka (migrating from RabbitMQ) - Infrastructure as Code: Terraform (using native AWS services where possible) - CI/CD: GitHub-based tooling Our Engineering Culture - We believe speed comes from quality, automation More ❯

Full Stack Developer - Contract Role Description:As it is full stack requirement, Angular is must to have primary skill and all others should be good to have, because client is expecting the person to be full stack developer, so he More ❯

Senior .NET/C# Developer Oracle to PostgreSQL Migration: Our client is embarking on a strategic transformation of a legacy enterprise platform, rebuilding a long-standing PHP and Oracle-based system into a .NET (C#) and PostgreSQL architecture. Seeking talented developers who are excited to work at the intersection of legacy systems, modern architecture and cutting-edge development tooling. Your … Responsibilities: Re-engineer Oracle PL/SQL logic into performant and maintainable C# services. Design and build .NET components that interact with both PostgreSQL and legacy PHP systems. Work closely with BAs and stakeholders to ensure functional parity and identify areas for modernisation or optimisation. Contribute to the design and delivery of a hybrid system architecture supporting phased rollout. Leverage … comprehensive documentation efforts. What You'll Bring: Experience developing in .NET/C#, particularly in backend and data access layers. Proven success migrating legacy systems, especially from Oracle to PostgreSQL or similar. Strong working knowledge of Oracle PL/SQL and the ability to translate procedural logic into C#. Solid experience with PostgreSQL, including handling dialect differences and performance tuning. More ❯

teams to deliver scalable solutions Mentoring junior engineers and contributing to a strong engineering culture Working with a modern, cloud-native stack Tech Stack Languages: JavaScript, Node.js Databases: SQL, PostgreSQL, BigQuery Cloud: AWS (Lambda, S3, Kinesis, RDS, Step Functions, AppFlow) DevOps: Serverless, Heroku, GitHub, CircleCI Monitoring: Graphite, Grafana, Splunk Bonus: Experience in marketing tech or AI What We're Looking More ❯

be instrumental in shaping architectural decisions and supporting the successful delivery of product features. Key Responsibilities Design and deploy custom workflow solutions using Camunda SaaS Build and configure Camunda Postgres connectors, job workers, service tasks, and user tasks Lead open-source delivery initiatives and support internal project teams Collaborate with engineering, product, and business teams to align on requirements and More ❯

Oracle database and transforming it into service-based architecture. Mapping Oracle data structures and types into .NET equivalents, ensuring performance and integrity. Collaborating on the migration from Oracle to Postgres or MySQL. Supporting a hybrid environment during rollout, where legacy Oracle systems and new .NET components coexist. Utilising AI-assisted tools for code analysis, documentation, and transformation. What We're … Proven experience re-engineering Oracle-based logic into C# within .NET environments. Strong understanding of Oracle database internals and data migration approaches. Experience in database migration from Oracle to Postgres or MySQL. Excellent analytical and problem-solving skills, with strong attention to detail. Clear communication skills with the ability to explain complex systems and document processes. Desirable Experience: Experience working More ❯

and deployment. Conduct training sessions and document processes to ensure knowledge transfer across the organization. Essential Skills & Experience: Proven expertise in cloud database administration and architecture (e.g., Azure SQL, PostgreSQL, etc.). Strong understanding of HA solutions and disaster recovery strategies. Experience in managing Windows-based SQL environments across development, test, UAT, and production stages. Hands-on experience with Infrastructure More ❯

and deployment. Conduct training sessions and document processes to ensure knowledge transfer across the organization. Essential Skills & Experience: Proven expertise in cloud database administration and architecture (e.g., Azure SQL, PostgreSQL, etc.). Strong understanding of HA solutions and disaster recovery strategies. Experience in managing Windows-based SQL environments across development, test, UAT, and production stages. Hands-on experience with Infrastructure More ❯

and support services including the broker services portal, static data, integration layers, and authentication modules Ensure secure, scalable deployment using Azure cloud-native tools Build and support systems using PostgreSQL, Java, and Spring Boot Integrate and monitor using observability tools like Datadog and BigPanda Collaborate closely with architects, DevOps, and security teams across the full SDLC Core Skills & Technologies Strong … backend development in Java with Spring Boot Cloud migration experience, particularly Azure Lift-and-Shift Familiarity with cloud infrastructure and deployment pipelines Exposure to PostgreSQL, authentication/security patterns Monitoring/observability tooling: Datadog, BigPanda Apply now to be considered. More ❯

Python, Postgres & React Developer - Remote Immediate Start | Until March (Minimum) I'm recruiting on behalf of a fast-paced consultancy delivering a critical platform for a Central Government body. We're seeking a seasoned Python, Postgres & React Developer to join a lean, agile team. You'll be hands-on developing API integrations, automation, and building a clean, maintainable codebase within … minimal tech stack. The environment is start-up-like - flexibility is essential. You'll wear multiple hats, operate independently, and bring solutions without needing handholding. Key Skills: Strong Python & Postgres experience are a must JavaScript & React proficiency would be valuable - but not essential as they have a dedicated React Developer API development & integration expertise Automation workflows We need a contractor More ❯

Python, Postgres & React Developer - Remote Immediate Start | Until March (Minimum) I'm recruiting on behalf of a fast-paced consultancy delivering a critical platform for a Central Government body. We're seeking a seasoned Python, Postgres & React Developer to join a lean, agile team. You'll be hands-on developing API integrations, automation, and building a clean, maintainable codebase within … minimal tech stack. The environment is start-up-like - flexibility is essential. You'll wear multiple hats, operate independently, and bring solutions without needing handholding. Key Skills: Strong Python & Postgres experience are a must JavaScript & React proficiency would be valuable - but not essential as they have a dedicated React Developer API development & integration expertise Automation workflows We need a contractor More ❯

facing skills. This role is open to all applicants, regardless of age. What you'll need to succeed Familiarity with UNIXKnowledge of CI toolsets Familiar with SQL, Oracle DB, Postgres, ActiveMQ, Zabbix, Ambari, Hadoop, Jira Confluence, BitBucket, ActiviBPM, Oracle SOA, Asure, SQL Server, Jenkins, Puppet and other cloud technologies. If successful, you will undergo BPSS clearance and must be eligible More ❯

client-facing skills. This role is open to all applicants, regardless of age. What you'll need to succeed Familiarity with UNIXKnowledge of CI toolsetsFamiliar with SQL, Oracle DB, Postgres, ActiveMQ, Zabbix, Ambari, Hadoop, Jira Confluence, BitBucket, ActiviBPM, Oracle SOA, Asure, SQL Server, Jenkins, Puppet and other cloud technologies.If successful, you will undergo BPSS clearance and must be eligible for More ❯

Excellent interpersonal, communication, presentation & consultative skills for effective collaboration with senior management. Good general business acumen. Thorough knowledge of databases technologies, both relational (such as Oracle, SQL Server and PostgreSQL) and non-relational database technologies as such as Memcached, MongoDB and Redis. Experience with Insurance/Reinsurance Systems and Data. High level knowledge/expertise of Front-end development such More ❯