11 senior typescript engineer jobs found in London

  Senior TypeScript Engineer (Node.js, AWS Serverless), FinTech Location: London, Manchester, Leeds, Edinburgh or Bristol (flexible hybrid) Rate: £600 per day. Inside IR35 Duration: 6 months About Codurance We 're a software craftsmanship consultancy. We build software for clients, and we care about doing it properly: clean code, solid testing, sensible architecture, and teams that keep learning. Our engineers work embedded with client teams, so you get variety, real ownership, and the backing of a wider community of craftspeople who 'll challenge you and help you grow. The role We 're looking for a senior contract engineer to work on a financial platform where correctness actually matters. You 'll design, build, and run TypeScript and Node.js services on AWS serverless infrastructure. You 'll work in a small, cross-functional team alongside product, operations, and customer-facing colleagues, and you 'll be the person people go to when they 're...

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...

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 Platform Engineer (AI, AWS & Developer Experience) to help design and build the platform from the ground up. This is a hands-on engineering role focused on AWS-native application development, internal developer platforms, agentic AI, automation, and engineering governance. You will create the tools, APIs, developer workflows, AI services, and platform capabilities that accelerate software delivery while embedding security, compliance, and operational excellence by default. Key Responsibilities Build cloud-native platform services, APIs, developer tooling, and automation on AWS. Design and develop AI-powered engineering capabilities using AWS Bedrock and agentic AI frameworks. Create reusable platform patterns, templates, and...

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...

  Start of main content         Search     Senior Software Engineer - £day rate (outside IR35) Red Badger   London Freelance Apply now           Job details Here’s how the job details align with your profile .   Job type Freelance         Full job description Joining a new project Ideally have worked on Financial Services Projects before (Payments would be...

Role description 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 Platform Engineer (AI, AWS & Developer Experience) to help design and build the platform from the ground up. This is a hands-on engineering role focused on AWS-native application development, internal developer platforms, agentic AI, automation, and engineering governance. You will create the tools, APIs, developer workflows, AI services, and platform capabilities that accelerate software delivery while embedding security, compliance, and operational excellence by default. Key Responsibilities Build cloud-native platform services, APIs, developer tooling, and automation on AWS. Design and develop AI-powered engineering capabilities using AWS Bedrock and agentic AI frameworks. Create reusable platform...

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...

Full job description Joining a new project Ideally have worked on Financial Services Projects before (Payments would be great) Fullstack Experience Tech Stack - Kotlin Backend, JS/TS React Frontend Start date ASAP Duration 6 months (Likely to extend) 2/3 days / week in person working (London) Immediate Interviews   The best bit about Red Badger is, of course, the team. We are really proud of our people; we support and learn a lot from each other; we work really hard but have fun doing it. We are a diverse group made up of 22 different nationalities, speaking 17 different languages.   Our 3 founders, Dave, Cain and Stu, who have considerable tech and consultancy experience and still own 100% of the company. We've been consistently profitable and have grown responsibly from the beginning.   We are based at Old Street in the heart of "tech city" and get thoroughly stuck in with the...

Mindera are currently looking for an experienced Tech Lead to operate within a Platform Enablement team in the retail sector. This will be a small team that looks after capabilities that are shared across products and channels. For this role, previous experience with CRMs is essential, ideally Clavio but not limited to. Requirements Strong software engineering expertise – deep backend development experience, building scalable APIs and microservices; broader experience with technologies such as Node.js, TypeScript or React is beneficial. Architecture & system design – proven ability to design and evaluate scalable services and integrations, applying appropriate architecture patterns while balancing product goals, security, reliability and long-term system health. Cloud, DevOps & Infrastructure as Code – hands-on experience building and operating cloud-native solutions in AWS, using modern CI/CD practices and Infrastructure...

Mindera are currently looking for an experienced Tech Lead to operate within a Platform Enablement team in the retail sector. This will be a small team that looks after capabilities that are shared across products and channels. For this role, previous experience with CRMs is essential, ideally Clavio but not limited to. Requirements Strong software engineering expertise – deep backend development experience, building scalable APIs and microservices; broader experience with technologies such as Node.js, TypeScript or React is beneficial. Architecture & system design – proven ability to design and evaluate scalable services and integrations, applying appropriate architecture patterns while balancing product goals, security, reliability and long-term system health. Cloud, DevOps & Infrastructure as Code – hands-on experience building and operating cloud-native solutions in AWS, using modern CI/CD practices and Infrastructure as...

Full job description Mindera are currently looking for an experienced Tech Lead to operate within a Platform Enablement team in the retail sector. This will be a small team that looks after capabilities that are shared across products and channels. For this role, previous experience with CRMs is essential, ideally Clavio but not limited to. Requirements Strong software engineering expertise – deep backend development experience, building scalable APIs and microservices; broader experience with technologies such as Node.js, TypeScript or React is beneficial. Architecture & system design – proven ability to design and evaluate scalable services and integrations, applying appropriate architecture patterns while balancing product goals, security, reliability and long-term system health. Cloud, DevOps & Infrastructure as Code – hands-on experience building and operating cloud-native solutions in AWS, using modern CI/CD...