8 senior backend developer jobs found in London

Salary £400 - £425 Outside IR35 City London Province Greater London Country United Kingdom Postal Code E14 Job Description About Scrumconnect Consulting Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. With a strong commitment to user-centred design and agile delivery, we continue to build innovative digital services that truly make a difference. Role Purpose We are looking for an experienced Backend Developer to design, build, and maintain scalable, secure server-side services and APIs, while contributing to the adoption of Agentic AI capabilities within our engineering platform. The role sits at SFIA Level 4 : the individual works under general direction, uses discretion in resolving problems, plans and monitors their own...

Location: London (Hybrid – 3 days onsite, mandatory) Employment Type : Permanent | Fixed-Term Contract | Contract (Inside IR35) Start Date : Immediate/ Short Notice period About the Role We are seeking a Senior AWS Application & Platform Engineer to help design and build cloud-native applications, developer platforms and AI-enabled engineering capabilities from the ground up.   This is a highly hands-on engineering role combining AWS application development, serverless and event-driven architecture, Python, Generative AI, developer tooling and automation.   You will build APIs, reusable application patterns, developer accelerators and AI-enabled services that help engineering teams deliver software more efficiently, securely and consistently.   Key Responsibilities Design and build cloud-native applications, APIs and platform services on AWS. Develop serverless and event-driven solutions using AWS Lambda, API...

Salary £400 - £425 Outside IR35 City London Province Greater London Country United Kingdom Postal Code E14 Job Description About Scrumconnect Consulting Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. With a strong commitment to user-centred design and agile delivery, we continue to build innovative digital services that truly make a difference. Role Purpose We are looking for an experienced Backend Developer to design, build, and maintain scalable, secure server-side services and APIs, while contributing to the adoption of Agentic AI capabilities within our engineering platform. The role sits at SFIA Level 4 : the individual works under general direction, uses discretion in resolving problems, plans and monitors their own...

Job Description About Scrumconnect Consulting Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. With a strong commitment to user-centred design and agile delivery, we continue to build innovative digital services that truly make a difference. Role Purpose We are looking for an experienced Backend Developer to design, build, and maintain scalable, secure server-side services and APIs, while contributing to the adoption of Agentic AI capabilities within our engineering platform. The role sits at SFIA Level 4 : the individual works under general direction, uses discretion in resolving problems, plans and monitors their own work (and may guide junior colleagues informally), and understands how their work contributes to broader team and organisational objectives....

Must have skills: Demonstrable experience with Solidity. Strong understanding of blockchain security practices and potential vulnerabilities. Proficiency in Hardhat and Foundry. Experience with Solidity security testing tools like Slither, Mythril, Echidna Practical experience with scripting languages like Javascript or Typescript. Ability to craft unit, integration, fork, and invariant tests, ensuring code longevity. Demonstrable aptitude for best development practices, data structures, algorithms, and methodologies. Bachelor's degree in Computer Science, Engineering, or a related STEM discipline. Excellent debugging and troubleshooting skills. Strong written and verbal communication skills. Self-motivated with the ability to work in a fast-paced, evolving environment. Proficient communication skills in English. Development background in sectors such as banking, finance, or trading, paired with a comprehensive grasp of financial...

Must have skills: Demonstrable experience with Solidity. Strong understanding of blockchain security practices and potential vulnerabilities. Proficiency in Hardhat and Foundry. Experience with Solidity security testing tools like Slither, Mythril, Echidna Practical experience with scripting languages like Javascript or Typescript. Ability to craft unit, integration, fork, and invariant tests, ensuring code longevity. Demonstrable aptitude for best development practices, data structures, algorithms, and methodologies. Bachelor's degree in Computer Science, Engineering, or a related STEM discipline. Excellent debugging and troubleshooting skills. Strong written and verbal communication skills. Self-motivated with the ability to work in a fast-paced, evolving environment. Proficient communication skills in English. Development background in sectors such as banking, finance, or trading, paired with a comprehensive grasp of financial...

Senior Generative AI Scientist – Agentic AI & Multi-Agent Systems London (Hybrid, 3 days onsite) Contract (Inside IR35) or Fixed-Term Employment   UST is seeking a hands-on Senior Generative AI Scientist to design, build, and deploy production-grade AI solutions that solve real business problems. You will work with engineering teams, AI specialists, and business stakeholders to deliver scalable agentic AI systems, multi-agent workflows, and enterprise GenAI applications.   The Role: Design and develop multi-agent AI systems and orchestration workflows Build production-ready LLM applications and AI-powered automation solutions Develop and optimise RAG pipelines, retrieval architectures, and vector search solutions Build Python-based APIs, microservices, and orchestration services Design asynchronous, event-driven workflows and integrations Implement AI guardrails, evaluation frameworks, observability, and monitoring...

Role description Senior Generative AI Scientist – Agentic AI & Multi-Agent Systems London (Hybrid, 3 days onsite) Contract (Inside IR35) or Fixed-Term Employment   UST is seeking a hands-on Senior Generative AI Scientist to design, build, and deploy production-grade AI solutions that solve real business problems. You will work with engineering teams, AI specialists, and business stakeholders to deliver scalable agentic AI systems, multi-agent workflows, and enterprise GenAI applications.   The Role: Design and develop multi-agent AI systems and orchestration workflows Build production-ready LLM applications and AI-powered automation solutions Develop and optimise RAG pipelines, retrieval architectures, and vector search solutions Build Python-based APIs, microservices, and orchestration services Design asynchronous, event-driven workflows and integrations Implement AI guardrails, evaluation frameworks,...