PostgreSQL Jobs in London

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PostgreSQL Jobs in London

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Looking for PostgreSQL jobs in London? Discover the latest opportunities for PostgreSQL developers, database administrators, and engineers in one of Europe’s leading tech hubs. Whether you're an experienced pro or just starting your career, our London PostgreSQL job listings connect you with top employers seeking skilled talent. Start your search today and take the next step in your PostgreSQL career in London!

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Software Engineer - Database & Display

Stackstudio Digital Ltd.

Role:Software Engineer - Database and Display Key Skills- SCADA/EMS/DMS Developer, Database Design, Data Modeling, Historian Integration, Oracle, SQL Server, PostgreSQL, SLD, Display Hands-on expertise preferably on XX PowerOn Reliance (XA21), AEMS Platform, GE eTerra, PowerOn Advantage Software, as well as SCADA / DMS/ EMS of any equivalent platforms from Siemens, OSI, ABB, Schneider etc.Proven experience working on databases such as Oracle, SQL Server, PostgreSQL, MYSQL, or similar RDBMSDisplay & Visualization SLD creation, HMI development, real-time dashboards, operator displays, and reportsProgramming / Scripting C, C++, PERL, Java or equivalent for application interfacing and scriptingData Handling Real-time data acquisition, Historian integration, data replication, and loggingPerformance Tuning & Monitoring Query optimization, indexing, database health monitoringVersion control with Git, SVN, or equivalentDesign, develop and maintain databases and data models for real-time power system applications (EMS/DMS/SCADA)Develop, enhance, and maintain display applications, dashboards, and HMI interfaces/Station displays for operators and engineersEnsure high performance, reliability, and integrity of database system under real-time operational loadsPerform database tuning, indexing, query optimization, and performance monitoringDevelop and maintain scripts, APIs, and services to support data integration, replication, and reportingTroubleshoot and resolve database and display issues, performing root-cause analysis and corrective actionsMaintain documentation, including database schemas, display specificationsStrong analytical and problem-solving skillsEffective communication and collaborationExperience in incident management, root-cause analysis, and troubleshooting production issuesTPBN1_UKTJ

MLOps Tech Lead

Stackstudio Digital Ltd.

+13

Job Details Role / Job Title: MLOps Tech Lead Work Location: London, UK Office Requirement (Hybrid): 2 days per week Key Responsibilities (High-Level) Data Pipeline Development: Lead the technical direction of projects and ensure the use of Sainsbury’s best practices to the best quality.Data Integration: Lead and provide expertise on Integrate data from various sources, ensuring data consistency, integrity, and quality across the entire data lifecycle.Infrastructure Management: Provide guidance for the junior & Mid Data Engineers on the best practices when building and managing data infrastructure, including data lakes, warehouses, and distributed processing systems (e.g., PySpark, Hadoop). The Role As a Tech Lead , you will play a critical role in designing, building, and maintaining data pipelines and infrastructure that enable the development and deployment of machine learning models and drive engineering excellence. You will collaborate closely with data scientists, and lead ML engineers, and software engineers to ensure data is clean, accessible, and optimised for large-scale processing and analysis. Your Responsibilities Data Pipeline Development: Lead the technical direction of projects and ensure the use of Sainsbury’s best practices to the best quality.Data Integration: Lead and provide expertise on Integrate data from various sources, ensuring data consistency, integrity, and quality across the entire data lifecycle.Infrastructure Management: Provide guidance for the junior & Mid Data Engineers on the best practices when building and managing data infrastructure, including data lakes, warehouses, and distributed processing systems (e.g., PySpark, Hadoop).Data Preparation: Collaborate with data scientists to prepare and transform raw data into formats suitable for machine learning, including feature engineering and data augmentation.Automation: Implement automation tools and frameworks (CI/CD) to streamline the deployment and monitoring of machine learning models in production.Performance Optimisation: Optimise data processing workflows and storage solutions to improve performance and reduce costs.Collaboration: Work closely with cross-functional teams, including data science, engineering, and product management, to deliver data solutions that meet business needs.Mentorship: junior and mid-level data engineers and provide technical guidance on best practices and emerging technologies in data engineering and machine learning and helping to enhance their skills and career growth.Knowledge Sharing and Empowerment: Promote a culture of knowledge sharing within the engineering teams by organising regular technical workshops, brown bag sessions, and code reviews.Innovation and Continuous Improvement: Foster a collaborative and inclusive team environment that encourages continuous learning and improvement. Your Profile Essential Skills / Knowledge / Experience Knowledge of machine learning frameworks (e.g., PySpark, PyTorch) and model deployment tools (e.g., MLflow, TensorFlow Serving).Strong experience with data processing frameworks (e.g., Apache Spark, Flink).Expertise in SQL and NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB, Cassandra).Hands-on experience with cloud platforms (e.g., AWS, GCP, Azure) and their data services (e.g., Snowflake, S3, BigQuery, Redshift).Experience with containerisation and orchestration tools (e.g., Docker, Kubernetes).Familiarity with version control systems (e.g., Git) and CI/CD pipelines. Desirable Skills / Knowledge / Experience Certifications: AWS Certified Big Data Specialty, Google Professional Data Engineer, or equivalent. Soft Skills:o Excellent problem-solving and analytical skills.o Strong communication skills, with the ability to explain complex technical concepts to non-technical stakeholders.o Ability to work independently and in a team-oriented, collaborative environment. Leadership and Communication Strong leadership skills with the ability to inspire and guide team.Lead scrum ceremonies as and when needed (Standup, Planning, and grooming sessions).Excellent verbal and written communication skills, with the ability to articulate complex technical concepts.Creating a safe and inclusive environment where all team members feel that their input is valued and are never dissuaded from speaking up or asking questions. Collaborative Attitude Strong team player with a collaborative approach to working with cross-functional teams within the Media Agency.Open to feedback and willing to provide constructive criticism to others.Be available for the team, responding within a reasonable time frame and if not possible clearly sign positing alternative contacts who can guide.Building a community across Media Agency.Contribute to a positive and inclusive atmosphere within the team. Knowledge Sharing and Empowerment Commitment to fostering a learning culture within the team and ensuring knowledge transfer across all levels.Support and mentor C3s and C4s engineers by providing them opportunities to lead initiatives and contribute to the technical roadmap.TPBN1_UKTJ

Postgres Data Architect

Stackstudio Digital Ltd.

Job DetailsRole / Job Title:Postgres Data Architect with CDC SkillsWork Location:250 Bishopsgate, London, UKOffice Presence (Hybrid):2 days per weekThe RolePostgreSQL Data Architect with strong hands-on experience in Change Data Capture (CDC). The candidate will design and implement robust data migration strategies, ensuring seamless integration between legacy systems and modern cloud-based architectures.Responsibilities

Architect CDC Pipelines: Design and optimize Change Data Capture workflows (IBM CDC or equivalent), including subscription design, bookmarks, resync, and replay strategies

Cloud Migration & Hosting: Lead PostgreSQL migration from on-premises/mainframe to cloud platforms (AWS Aurora preferred), ensuring performance, security, and scalability

Integration & ETL Pipelines: Build robust pipelines using CDC Kafka/S3 Aurora with UPSERT/MERGE patterns; guarantee idempotency, ordering, and reliable delivery

Data Encoding & Validation: Manage EBCDIC UTF-8 conversions, packed decimal/binary numeric, and validate transformations with automated test suites

Cutover & Governance: Execute dual-run validations, reconciliation (counts, checksums), rollback strategies, and ensure compliance with masking, encryption, and IAM policies

Performance & Observability: Monitor lag, throughput, and error rates; develop dashboards (CloudWatch/Grafana) and operational runbooks for proactive alerting

Automation & Tooling: Utilize schema conversion tools, IaC (Terraform), CI/CD pipelines (GitLab), and AWS services (Glue, Athena, Redshift) for downstream analytics

Data Modelling & Conversion (Good to have): Transform Db2 schemas to Aurora PostgreSQL; design logical/physical models, enforce referential integrity, and apply best practices for normalization/denormalization

Your ProfileEssential Skills / Knowledge / Experience

Strong hands-on experience with PostgreSQL (Aurora preferred) and advanced data modelling

Expertise in CDC tools (IBM CDC or similar) and data migration strategies

Proven experience in PostgreSQL cloud hosting and migration

Proficiency in ETL/ELT pipelines, Kafka, and AWS ecosystem

Solid understanding of data encoding, transformation, and validation techniques

Familiarity with IaC, CI/CD, and observability frameworks

Excellent problem-solving and communication skills

Desirable Skills / Knowledge / Experience

Mainframe Modernization

Python Software Engineer - Fintech

A Mid Level Python Engineer is required to join a Fintech company developing next generation tools for how companies get funding and optimise their working capital.Our client aims to change how corporate finance works, by replacing static, limited and often stale financial metrics with live data-driven insights sourced from direct connections to their clients systems.You will be joining a strong team of Python Engineers, Data Scientists, and financial experts, who are building the next generation of financial toolsscalable, secure, and smart.If you’re an experience Software Engineer whose passionate about Python, excited by financial technology, and eager to build meaningful systems from the ground up, we want to hear from you.As a Python Software Engineer, you will contribute to the design, development, and delivery of scalable, high-impact features across our platform. Youll work closely with experienced engineers, product managers, and data scientists to build reliable systems that solve complex financial problems. This role offers an excellent opportunity to deepen your technical expertise, take ownership of individual projects, and grow in a supportive, fast-paced startup environment.Requirements:1st class - 2;1 Degree in Comp Sci or STEM subject from a Top ranked University3+ years of experience in Python developmentTech: Python, FastAPI, Pydantic, PostgreSQL, AWSDevOps tools: Kubernetes, Docker,Terraform, JenkinsVery strong software engineering principlesEnthusiasm for startup environment and cross-functional teamsPassion for automation and data infrastructureTPBN1_UKTJ

Site Reliability Engineer

+14

Salary to £60k + Company Options SchemeHybrid working (2-3days/weekacrosstheirVauxhalloffices&Londonbasedclients).NB: Please only apply if you are (ideally a UK National) able to achieve either SC or DV clearance.(SC) 5 years & (DV) 10 years residency in the UK with no more than a 3-month break outside the UK.OverviewThis company is a Workflow & AI Orchestration Specialist. They’re on a mission to modernise how public sector organisations manage casework, derive insight from data and deliver citizen services. Theyre growing fast and looking for bright, dynamic people to help build their business.RoleTheyre looking for a Site Reliability Engineer (SRE) to join their growing platform and delivery teams. Youll help design, build, and operate reliable, secure, and performant infrastructure that underpins critical public-sector services.Youll combine your background in DevOps, cloud engineering, and automation with a focus on reliability, observability, and scalability. Youll also work with event-driven technologies, identity and access management, and data platforms, ensuring our orchestration solutions are resilient, secure, and future-ready.This is an exciting opportunity for an engineer who thrives on solving complex infrastructure and automation challenges, automating everything, and shaping secure-by-design delivery environments.ResponsibilitiesDesign, build, and operate resilient cloud infrastructure (AWS & Azure preferred)Develop and maintain CI/CD pipelines using tools such as GitHub Actions, Jenkins, or GitLab CIImplement infrastructure-as-code using Terraform, Helm, and Kubernetes manifestsBuild and manage event-driven architectures using Apache Kafka or similar messaging systemsOperate and maintain databases and data platforms such as PostgreSQL, Elasticsearch, and MongoDBConfigure and support identity and access management (IdAM) solutions such as KeycloakMonitor system health, performance, and capacity using modern observability stacks (Prometheus, Grafana, ELK, OpenTelemetry)Champion DevSecOps practices, embedding security and compliance into every stage of deliveryAutomate deployment, scaling, and recovery processes to improve reliability and reduce manual toilSupport development teams with environment configuration, secrets management, and container orchestrationParticipate in incident management and root-cause analysis to continuously improve system resilienceContribute to internal platform frameworks, templates, and automation acceleratorsEssentialExperience in SRE, DevOps, or Cloud Infrastructure Engineering rolesStrong knowledge of AWS, Azure, or GCP environmentsHands-on experience with Kubernetes, Docker, and container orchestrationProven experience building and maintaining CI/CD pipelinesStrong experience with infrastructure-as-code (Terraform, Helm, or CloudFormation)Working knowledge of event-driven systems (Kafka, RabbitMQ, or similar)Experience managing and tuning databases (PostgreSQL, Elasticsearch, MongoDB)Familiarity with Keycloak or equivalent identity and access management (IdAM) platformsStrong scripting or automation experience (Python, Bash, or Go preferred)Experience with monitoring, logging, and alerting tools for observabilityUnderstanding of networking, DNS, load balancing, and security controlsCollaborative, pragmatic, and proactive problem solverMust be eligible and prepared to go through SC Security ClearanceDesirableExperience operating production workloads in the UK public sector or regulated environmentsFamiliarity with Camunda or other process orchestration platformsExperience implementing DevSecOps frameworks or security automation toolsUnderstanding of zero-trust networking and secure-by-design principlesFamiliarity with service mesh technologies (e.g. Istio, Linkerd)Exposure to agentic AI or workflow automation environmentsHolds UK security clearance (SC, DV, eDV)What They OfferA company option scheme gives their employees a stake in the organisation theyre buildingMeaningful missions, tackling high-impact public-sector problems that improve services millions rely on.Hybrid working, flexible working between their London office, client offices and your home location.Outputs over optics. They focus on what gets delivered, not hours online.Working shoulder-to-shoulder with founders. Learn from experienced practitioners in a nurturing, hands-on environment.Shape their organisation. your fingerprints will be on their company as it grows.Autonomy by default. They empower their people to do whats needed.Sociable, low-ego, dynamic engagements. No big-firm stiffness or needless bureaucracy.Professional Development. They invest in their people through training and certifications.Other StuffNB: Please only apply if you are (ideally a UK National) able to achieve either SC or DV clearance.(SC) 5 years & (DV) 10 years residency in the UK with no more than a 3-month break outside the UK.NB: for non-UK Citizens; we cannot accept applications from anyone requiring sponsorship (now or in the future) for UK permanent employment status. If you are utilising a work visa this must allow you to work in the UK unrestricted for at least the next 5 years.Profile 29 recruitment keywords: Site reliability engineer SRE DevOps Cloud Infrastructure AWS Azure GCP Kubernetes Docker container orchestration CI/CD Terraform Helm CloudFormation Kafka RabbitMQ PostgreSQL Elasticsearch MongoDB Keycloak identity access management IdAM Python Bash Go DV SC Security Clearance AI artificial intelligence London hybrid work from homeTPBN1_UKTJ

Staff Platform Engineer GCP - Start-up

Staff Platform Engineer London / WFH to £130kAre you a technologist with start-up experience and a first class education looking for a new opportunity?You could be joining a small Fintech start-up run by small, successful and proven team of finance technology entrepreneurs, backed by Silicon Valley investors, as they build out the product, currently in stealth mode.As a Staff Platform Engineer you’ll have an impactful role with lots of influence. Initially you’ll assess the current tech set up based on GCP, Python, TypeScript, PostgreSQL and Terraform; establish the production environment and extend the platform to enable scalability.You’ll collaborate closely with the CTO and Lead Software Engineer to establish and build systems from scratch and will build a team of high performing engineers, progressing quickly to Head of Technology.Location / WFH:You’ll be based in Central London, with flexibility to work from home twice a week.About you:

You have experience in a similar senior level Platform Engineer role within start-up / scale-up environments with strong commercial acumen

You have achieved a 2.1 or above BSc from a well renowned top world university, e.g. Russel Group, Ivy League in a relevant technical discipline

You have experience in a FAANG company

You have a software engineering background with a strong knowledge of modern best practices, architecture and design experience

You have strong, current technical skills including: GCP, Python, TypeScript, PostgreSQL and Terraform

You’re collaborative and pragmatic with strong leadership and stakeholder management skills

You have experience of building teams and developing people

What’s in it for you:

Starting salary £130k

Equity

Apply now to find out more about this Staff Platform Engineer opportunity.At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We’re an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

MLOps Tech Lead

Stackstudio Digital Ltd.

Job DetailsRole / Job Title:MLOps Tech LeadWork Location:London, UKOffice Requirement (Hybrid):2 days per weekKey Responsibilities (High-Level) Data Pipeline Development: Lead the technical direction of projects and ensure the use of Sainsbury’s best practices to the best quality. Data Integration: Lead and provide expertise on Integrate data from various sources, ensuring data consistency, integrity, and quality across the entire data lifecycle. Infrastructure Management: Provide guidance for the junior & Mid Data Engineers on the best practices when building and managing data infrastructure, including data lakes, warehouses, and distributed processing systems (e.g., PySpark, Hadoop).The RoleAs a Tech Lead, you will play a critical role in designing, building, and maintaining data pipelines and infrastructure that enable the development and deployment of machine learning models and drive engineering excellence. You will collaborate closely with data scientists, and lead ML engineers, and software engineers to ensure data is clean, accessible, and optimised for large-scale processing and analysis.Your Responsibilities Data Pipeline Development: Lead the technical direction of projects and ensure the use of Sainsbury’s best practices to the best quality. Data Integration: Lead and provide expertise on Integrate data from various sources, ensuring data consistency, integrity, and quality across the entire data lifecycle. Infrastructure Management: Provide guidance for the junior & Mid Data Engineers on the best practices when building and managing data infrastructure, including data lakes, warehouses, and distributed processing systems (e.g., PySpark, Hadoop). Data Preparation: Collaborate with data scientists to prepare and transform raw data into formats suitable for machine learning, including feature engineering and data augmentation. Automation: Implement automation tools and frameworks (CI/CD) to streamline the deployment and monitoring of machine learning models in production. Performance Optimisation: Optimise data processing workflows and storage solutions to improve performance and reduce costs. Collaboration: Work closely with cross-functional teams, including data science, engineering, and product management, to deliver data solutions that meet business needs. Mentorship: junior and mid-level data engineers and provide technical guidance on best practices and emerging technologies in data engineering and machine learning and helping to enhance their skills and career growth. Knowledge Sharing and Empowerment: Promote a culture of knowledge sharing within the engineering teams by organising regular technical workshops, brown bag sessions, and code reviews. Innovation and Continuous Improvement: Foster a collaborative and inclusive team environment that encourages continuous learning and improvement.Your ProfileEssential Skills / Knowledge / Experience Knowledge of machine learning frameworks (e.g., PySpark, PyTorch) and model deployment tools (e.g., MLflow, TensorFlow Serving). Strong experience with data processing frameworks (e.g., Apache Spark, Flink). Expertise in SQL and NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB, Cassandra). Hands-on experience with cloud platforms (e.g., AWS, GCP, Azure) and their data services (e.g., Snowflake, S3, BigQuery, Redshift). Experience with containerisation and orchestration tools (e.g., Docker, Kubernetes). Familiarity with version control systems (e.g., Git) and CI/CD pipelines.Desirable Skills / Knowledge / Experience Certifications: AWS Certified Big Data Specialty, Google Professional Data Engineer, or equivalent.Soft Skills: o Excellent problem-solving and analytical skills. o Strong communication skills, with the ability to explain complex technical concepts to non-technical stakeholders. o Ability to work independently and in a team-oriented, collaborative environment.Leadership and Communication Strong leadership skills with the ability to inspire and guide team. Lead scrum ceremonies as and when needed (Standup, Planning, and grooming sessions). Excellent verbal and written communication skills, with the ability to articulate complex technical concepts. Creating a safe and inclusive environment where all team members feel that their input is valued and are never dissuaded from speaking up or asking questions.Collaborative Attitude Strong team player with a collaborative approach to working with cross-functional teams within the Media Agency. Open to feedback and willing to provide constructive criticism to others. Be available for the team, responding within a reasonable time frame and if not possible clearly sign positing alternative contacts who can guide. Building a community across Media Agency. Contribute to a positive and inclusive atmosphere within the team.Knowledge Sharing and Empowerment Commitment to fostering a learning culture within the team and ensuring knowledge transfer across all levels. Support and mentor C3s and C4s engineers by providing them opportunities to lead initiatives and contribute to the technical roadmap.

GenAI Full Stack Engineer - Consultant / Senior Consultant

Salary: £45,000 - £70,000 pa + £4,000 Bonus plus benefits, perks and healthcare optionsJob Type: Permanent - Hybrid / 2 x days per week - Travel to client siteBase Locations: London, Manchester, Newcastle, GlasgowOverview:We’re looking for a GenAI Full Stack Engineer who is passionate about solving real-world challenges through technology. You’ll work closely with senior stakeholders both internally and within key clients to create GenAI strategies that translate business issues into relevant technical solutions and competitive propositions that are scalable, secure, and sustainable.Your Role:

Collaborate with the team to develop GenAI proof-of-concepts (POCs) for clients using technologies like Retrieval-Augmented Generation (RAG) and intelligent agents.

Scale existing POCs to production-ready solutions for customer use.

Design and develop Full Stack applications for both GenAI and non-GenAI projects.

Support the development of infrastructure to enable robust end-to-end solutions.

Grow your skills by exploring and experimenting with emerging technologies, including GenAI.

Your skills and experience:

Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent

Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite.

GenAI Frameworks: Familiarity with tools like LangChain, LangGraph, CrewAI, or Vercel AI (in Python or JavaScript).

LLM experience: Practical experience with Large Language Models (LLMs) such as OpenAI, Anthropic, Mistral, or Llama, and tools like Ollama.

Cloud Platforms: Proficiency in AWS or Azure for hosting and deployment.

Containerization and Orchestration: Hands-on experience with Docker, Kubernetes, and Docker Compose.

Infrastructure as Code (IaC): Exposure to tools like Terraform.

Monitoring Tools: Familiarity with LLM monitoring tools like Langsmith, Langfuse, or similar.

CI/CD: Experience with continuous integration and deployment tools such as GitLab, GitHub, or Jenkins.

Vector Databases: Experience with and (but not limited to) ChromaDB, Pinecone, PGVector, MongoDB , Qdrant etc.

NoSQL: Familiarity with NoSQL databases (e.g., MongoDB preferred).

SQL: Experience working with SQL databases like PostgreSQL.

Proficient in Git and version control platforms like GitHub, GitLab, etc.

To be successfully appointed to this role, it is a requirement to obtain Security Check (SC) clearance.

Senior Software Engineer

An exciting opportunity has arisen for a Senior Software Engineer to join a well-established biotech company using large-scale genetic data and AI to predict disease risk and advance precision healthcare.As a Senior Software Engineer, you will be contributing to the development and scaling of secure, reliable software in a collaborative, agile environment.This is a contract-based role (12 weeks) offering hybrid / remote working options, a salary range of £500 - £700 per day (Inside IR35) and benefits.You will be responsible for:Building and scaling new software products within an agile squad. Supporting the delivery of innovative health-tech services that positively impact society. Collaborating closely with cross-functional teams including product, UX, and engineering leads. Applying engineering expertise across backend and full-stack development.What we are looking forPreviously worked as a Software Engineer, Backend Engineer, Full Stack Developer, Backend Developer, Cloud Engineer, Python Developer, Node.js Developer, Platform Engineer, Infrastructure Engineer or in a similar role. Strong background in cloud-hosted web applications and backend services. Expertise in Node.js, Ruby on Rails, Python; knowledge of Golang or Typescript is advantageous. Experience with agile methodologies, Git, and GitHub workflows. Competence in developing and maintaining large-scale web applications, both frontend and backend. Familiarity with CI/CD pipelines, test-driven development, and code reviews. Proficient in data modelling and relational databases such as PostgreSQL. Experience with Infrastructure as Code, particularly Terraform. Knowledge of cloud platforms including Azure (preferred), AWS, or GCP. Understanding of security and regulatory requirements in software design.This is a unique opportunity to join a forward-thinking tech team and make a tangible difference. Apply now to be part of this exciting venture.Important Information: We endeavour to process your personal data in a fair and transparent manner. In applying for this role, Additional Resources will be acting in your best interest and may contact you in relation to the role, either by email, phone, or text message. For more information see our Privacy Policy on our website. It is important you are aware of your individual rights and the provisions the company has put in place to protect your data. If you would like further information on the policy or GDPR please contact us.Additional Resources Ltd is an Employment Business and an Employment Agency as defined within The Conduct of Employment Agencies & Employment Businesses Regulations 2003

Site Reliability Engineer

DV Cleared Site Reliability Engineer London - 5 Days Onsite Up to £550 per day (Umbrella, Inside IR35) 12-Month Contract Must hold live and transferrable DV Clearance Are you passionate about reliability, automation, and supporting mission-critical systems? Join this global defence organisation as a Site Reliability Engineer (SRE) and help shape the future of one of the UK’s most vital national security platforms. You’ll be joining a growing SRE team at the heart of the customer’s mission, focused on ensuring performance, availability, and scalability-while driving continuous improvement and innovation. About the Role As an SRE, you’ll combine your operational expertise with software engineering skills to minimise manual effort and drive automation across complex systems. This role is perfect for someone who thrives on solving hard problems, automating the mundane, and building intelligent tools to enhance system reliability. Key Responsibilities Support and maintain essential services behind critical applications. Participate in a 24/7 on-call rota (1 week in 5), with extra allowance and overtime. Proactively enhance system availability, performance, and resilience. Develop tools and solutions to automate repetitive tasks and reduce operational toil. Collaborate with development teams to embed best practices and SRE principles. Deploy and manage monitoring systems to provide intelligent observability. Engage with the wider DevOps/SRE community within the organisation. Ideal Skills & Experience We’re more interested in your curiosity, enthusiasm, and problem-solving ability than 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 or exposure to IT service operations Containerisation: Docker, Kubernetes, OpenShift Awareness of modern tech trends and tooling Security Requirements DV clearance holder only Why Apply? Join a forward-thinking SRE team in an environment where your work directly supports UK national security. Help shape tooling, practices, and culture from the ground up. Work alongside brilliant minds on meaningful problems. Receive ongoing training and professional development. If you’re excited about automation, resilient systems, and the opportunity to work on a high-impact project-this is your chance to make a difference

Data Engineer - Central Gov - SC Cleared

SC-Cleared Data Engineer/Architect – NoSQL/PostgreSQL (UK Government Project) Inside IR35 | Remote with 1 Day per Month in London | Start: January 2026 We are seeking SC-cleared Data Engineers and Architects with experience across NoSQL and PostgreSQL technologies to support a major UK Government transformation programme starting in January 2026. The work will involve re-architecting a monolithic system into a microservices-based platform, contributing to data design, ownership models, and migration activity within a modern, AWS-hosted environment. Exposure to MongoDB is beneficial but not essential. Key Experience Required Experience as a Data Engineer or Architect in distributed/cloud-based systems Proficiency with NoSQL databases (e.g. MongoDB, DynamoDB, Cassandra) and PostgreSQL Data modelling and ownership design for microservices architectures Familiarity with AWS and automation/scripting for deployment and migrations Strong understanding of database performance, indexing, and security Essential Requirements Active SC Clearance UK Government or regulated public sector experience Remote-based, with one mandatory onsite day per month in London (non-expensable) Start date: January 2026 May be required to complete a short technical assessmentTo register interest and join our SC-cleared talent pipeline, please submit your CV outlining your relevant experience and clearance status

SC Cleared Data Engineer – Data Migration (AWS) - Outside IR35

SC Cleared Data Engineer – Data Migration (AWS / PostgreSQL / NoSQL) Rate: Up to £500/day (Outside IR35) Contract Length: Initial contract (extension possible) Location: Remote (UK-based) Clearance: Active SC clearance required Start: ASAP We are supporting a consultancy delivering a secure data migration programme and are looking for an experienced SC Cleared Data Engineer to support the migration of legacy data into a new cloud-based architecture. The role focuses on migrating XML-based data into modern database platforms, supporting a case management system, and working within an AWS environment. This is a hands-on engineering role requiring strong data transformation, mapping and scripting experience. Key Responsibilities Design and build data migration and transformation pipelines Migrate XML-based data into PostgreSQL and NoSQL databases Perform detailed data mapping from source to target schemas Develop and maintain data processing scripts using Python Work closely with Data Architects to implement target-state designs Ensure data quality, integrity and consistency throughout migration Support testing, validation and reconciliation activities Operate within secure and regulated delivery environmentsEssential Experience Proven experience as a Data Engineer on data migration projects Strong Python development experience for data processing Hands-on experience with PostgreSQL and NoSQL databases Experience migrating or transforming XML-based data AWS cloud experience Strong data mapping and validation skills Experience working in secure or regulated environments Active SC clearance is essentialDesirable Experience Experience working with case management platforms (e.g. Appian) Public sector or government programme experienceThis is an excellent opportunity to work on a remote, Outside IR35 contract delivering a high-impact data migration programme. If you meet the above requirements and are available for an immediate start, please get in touch for further details. ChatGPT can make mistakes. Check important info

Generative AI Consultant

GenAI Full Stack Engineer - Consultant/Senior ConsultantSalary: £45,000 - £70,000 pa + £4,000 Bonus plus benefits, perks and healthcare optionsJob Type: Permanent - Hybrid/2 x days per week - Travel to client siteBase Locations: London, Manchester, Newcastle, GlasgowOverview:We’re looking for a GenAI Full Stack Engineer who is passionate about solving real-world challenges through technology. You’ll work closely with senior stakeholders both internally and within key clients to create GenAI strategies that translate business issues into relevant technical solutions and competitive propositions that are scalable, secure, and sustainable.Your Role:

Collaborate with the team to develop GenAI proof-of-concepts (POCs) for clients using technologies like Retrieval-Augmented Generation (RAG) and intelligent agents.

Scale existing POCs to production-ready solutions for customer use.

Design and develop Full Stack applications for both GenAI and non-GenAI projects.

Support the development of infrastructure to enable robust end-to-end solutions.

Grow your skills by exploring and experimenting with emerging technologies, including GenAI.

Your skills and experience:

Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent

Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite.

GenAI Frameworks: Familiarity with tools like LangChain, LangGraph, CrewAI, or Vercel AI (in Python or JavaScript).

LLM experience: Practical experience with Large Language Models (LLMs) such as OpenAI, Anthropic, Mistral, or Llama, and tools like Ollama.

Cloud Platforms: Proficiency in AWS or Azure for hosting and deployment.

Containerization and Orchestration: Hands-on experience with Docker, Kubernetes, and Docker Compose.

Infrastructure as Code (IaC): Exposure to tools like Terraform.

Monitoring Tools: Familiarity with LLM monitoring tools like Langsmith, Langfuse, or similar.

CI/CD: Experience with continuous integration and deployment tools such as GitLab, GitHub, or Jenkins.

Vector Databases: Experience with and (but not limited to) ChromaDB, Pinecone, PGVector, MongoDB, Qdrant etc.

NoSQL: Familiarity with NoSQL databases (eg, MongoDB preferred).

SQL: Experience working with SQL databases like PostgreSQL.

Proficient in Git and version control platforms like GitHub, GitLab, etc.

To be successfully appointed to this role, it is a requirement to obtain Security Check (SC) clearance.If you’re ready to take the next step in your career and thrive in a fast-paced, innovative environment, we want to hear from you! Please send updated CV

Senior Data Engineer x1/ Data Engineer x1 (Financial Services)

Your new company Working for a renowned commodity, metals, trades and exchange group. You’ll be a key part of the Enterprise Data team helping to replace legacy ETL tools (Informatica) and deliver modern data engineering capabilities. Your work will include managing data pipelines, supporting analysis and visualisation, and collaborating with ETL developers and wider technology teams to deliver solutions aligned with our strategic roadmap. You’ll work across backend, data, and infrastructure engineering, contributing to solution design, implementation, deployment, testing, and support. This is a hands-on role for someone with strong data engineering skills and experience in regulated environments. Your new role Design, build, and maintain scalable data pipelines and infrastructure for analytics and integration across data platforms. Ensure data quality and reliability through automated validation, monitoring, and testing using Python, Java, or Scala. Develop and manage database architectures, including data lakes and warehouses. Clean, transform, and validate data to maintain consistency and accuracy. Collaborate with technical and non-technical teams, providing clear communication on project progress and requirements. Create and maintain accurate technical documentation. Support internal data analysis and reporting for business objectives. Investigate and resolve data-related issues, implementing improvements for stability and performance. Evaluate and prototype solutions to ensure optimal architecture, cost, and scalability. Implement best practices in automation, CI/CD, and test-driven development.What you’ll need to succeed Strong experience in Data Engineering, with demonstrable lead 5involvement in at least one production-grade data system within financial services or a similarly regulated industry. Strong coding skills in Python or Java (Spring Boot); React experience is a plus. Proficiency with modern data tools: Airflow, Spark, Kafka, dbt, Snowflake or similar. Experience with cloud platforms (AWS, Azure, GCP), containerization (Docker, Kubernetes), and CI/CD. Data Quality: Proven ability to validate and govern data pipelines, ensuring data integrity, correctness, and compliance. Experience working within financial services/ highly regulated environments. Bonus Skills: SQL and RDBMS (PostgreSQL, SQL Server). NoSQL/distributed databases (MongoDB). Streaming pipelines experience. What you’ll get in return An exciting opportunity to join an international organisation in financial services. Furthermore, a competitive day rate inside IR35 for this role will be offered in addition to your own dedicated Hays Consultant to guide you through every step of the application process. What you need to do now If you’re interested in this role, click ‘apply now’ to forward an up-to-date copy of your CV, or call us now. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C’s, Privacy Policy and Disclaimers which can be found at (url removed)

Lead Software Engineer

PHP Engineering LeadWorking Hours: Full time,PermanentLocation: Hybrid: minimum 2 days per week at our clients Elstree / Kings Cross offices About the Company: Our client is a forward-thinking technology organisation reshaping how creative products are produced and delivered. Their platform connects a global network of industry partners while empowering independent artists with scalable, accessible tools. As demand grows, the company is rapidly expanding its platform and infrastructure to support increasing global scale. About the role: Our client is seeking a PHP Engineering Lead to balance approximately 50% hands-on engineering with 50% leadership, architecture, and team development. This role requires someone who can bring structure, clarity, and technical direction to a growing engineering function.Youll be responsible for shaping technical decisions, guiding delivery, mentoring engineers, and contributing hands-on where it has the most impact. Strong communication, a collaborative mindset, and solid product instincts are essential. Key Responsibilities:

Engineering Leadership, Delivery & Team Development

Architect, design, and deliver scalable, high-performance full-stack solutions.

Lead complex feature development across PHP (Symfony/Laravel), JavaScript (Vue.js or React.js or Node.js), and AWS.

Own technical direction, architecture decisions, and engineering standards.

Manage end-to-end delivery of features from discovery and planning through deployment and iteration.

Lead, mentor, and develop a team of five engineers (one senior, four mid-level).

Conduct code reviews, guide technical approaches, and raise engineering standards.

Support team growth through coaching, pairing, and knowledge sharing.

Collaborate closely with the CEO and senior stakeholders on product and engineering strategy.

Identify and address technical debt to support long-term platform growth.

Platform, Infrastructure & Reliability

Build and maintain APIs, microservices, backend systems, and third-party integrations.

Ensure platform security, performance, reliability, and scalability.

Manage cloud-native workflows using AWS, Docker, and CI/CD pipelines.

Work with distributed systems and messaging technologies (e.g. SQS, RabbitMQ).

Drive strong testing practices, monitoring, observability, and production readiness.

Essential Technical Experience:

Significant full-stack engineering experience, particularly with PHP (Symfony or Laravel).

Strong experience with JavaScript (Vue.js, React.js, and/or Node.js).

Solid database expertise across MySQL and PostgreSQL.

Hands-on experience with AWS architecture, Docker, and CI/CD automation.

Experience building APIs, microservices, and distributed systems.

Familiarity with messaging systems such as SQS or RabbitMQ.

Strong testing mindset using frameworks such as PHPUnit, Vitest, or equivalents.

Proven ability to deliver features end-to-end from concept to production.

Excellent communication skills and ability to balance technical depth with delivery.

Desirable Experience:

Previous experience leading engineering teams or acting as a technical lead.

Interest in progressing further into people leadership.

Exposure to automation systems, industrial software, or production workflows.

Familiarity with manufacturing or factory-adjacent technology environments.

Experience with Node.js.

Benefits:

Highly competitive salary package

25 days annual leave

Pension scheme

Private medical insurance

Modern, technology-focused office environment

Why Join Our Client:

Take on a pivotal leadership role influencing the technical direction of a rapidly scaling platform.

Work directly with senior leadership on engineering strategy and product evolution.

Lead and mentor a growing development team, shaping culture and standards.

Contribute hands-on and architecturally to a platform with strong industry visibility and creative impact.

Be part of a visionary company pushing innovation in physical media and creator technology.

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Frequently asked questions

What types of PostgreSQL jobs are available in London?

London offers a variety of PostgreSQL job opportunities including Database Administrators, Backend Developers, Data Engineers, and DevOps specialists who focus on database management and optimization.

Do I need to be based in London to apply for PostgreSQL jobs listed here?

While many employers prefer candidates located in London due to onsite collaboration, there are also remote and hybrid PostgreSQL roles available. Job descriptions will specify the work location requirements.

What level of experience is typically required for PostgreSQL jobs in London?

PostgreSQL roles in London range from junior to senior levels. Entry-level positions may require basic SQL knowledge, while senior roles expect strong expertise in database architecture, performance tuning, and replication.

Are there any special certifications that can improve my chances for PostgreSQL jobs?

Certifications like the Certified PostgreSQL DBA or relevant AWS/GCP database certifications can enhance your profile. However, practical experience and demonstrated skills often weigh more heavily with employers.

How often are new PostgreSQL jobs posted on this board for London?

We update our job listings regularly, often daily, ensuring that you have access to the latest PostgreSQL opportunities in the London area.

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