28 senior typescript engineer jobs found

  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...

  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...

  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...

  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...

  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...

Senior SC Cleared AI Engineer | Defence | Remote (Contract) Remote (UK) with occasional client site visits £550-£650 per day with extensions up to 1 year Initial 6-Month Contract Active SC Clearance & Current BPSS Required Elenta is seeking an experienced Senior AI Engineer to support the delivery of AI solutions across Defence and secure Government environments. You'll be responsible for designing, developing, deploying, and supporting production-grade AI solutions whilst working closely with technical teams and customer stakeholders. The role requires a strong engineering mindset, with the ability to design and deliver robust solutions from ambiguous requirements whilst maintaining high standards of documentation, security, and code quality. You will work across AI platforms, concept applications, proof-of-value solutions, and production systems, helping shape ideas from early-stage concepts through to operational deployment....

PLEASE NOTE: SC Clearance is an essential requirement for this role, as a minimum you must be willing & eligible to undergo checks.  Please note, due to the exceptional requirements of this position (short-term nature of this role and speed at which we require a postholder in situ) preference may be given to candidates who meet all of the essential criteria and hold active security clearance.   The Department for Work and Pensions (DWP) is responsible for welfare, pensions, and child maintenance policy. As the UK's biggest public service department, it administers the State Pension and a range of working age, disability and ill health benefits to around 20 million claimants and customers. As such, we operate on a scale that is almost unmatched anywhere in Europe and most people in Britain come into contact with us at some point in their lives.   Working with DWP, you will be helping us to drive our priorities to:   Help people to move...

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...

Senior Front-End React Developer At Bridebook, we're digitising the wedding industry! Join us in transforming the wedding planning experience for engaged couples around the world. Full-time Contractor · Remote · Competitive Day Rate Who is Bridebook anyway? Bridebook is a revolutionary wedding planning platform that seeks to make wedding planning an enjoyable, intuitive, and rewarding experience for couples, guests, and industry partners. Launched in the UK, Bridebook has over 1,000,000 planning couples and has been featured in major outlets such as the New York Times, the BBC, and the App Store. After seven years and many iterations later, we have 2 in 3 engaged UK couples and 1 in 3 engaged German couples using Bridebook, and have recently expanded into the French and Irish markets. While we serve a very emotional and creative industry, we are disrupting the wedding industry by leveraging cutting-edge technology to provide seamless 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...

Senior Front-End React Developer At Bridebook, we're digitising the wedding industry! Join us in transforming the wedding planning experience for engaged couples around the world. Full-time Contractor · Remote · Competitive Day Rate Who is Bridebook anyway? Bridebook is a revolutionary wedding planning platform that seeks to make wedding planning an enjoyable, intuitive, and rewarding experience for couples, guests, and industry partners. Launched in the UK, Bridebook has over 1,000,000 planning couples and has been featured in major outlets such as the New York Times, the BBC, and the App Store. After seven years and many iterations later, we have 2 in 3 engaged UK couples and 1 in 3 engaged German couples using Bridebook, and have recently expanded into the French and Irish markets. While we serve a very emotional and creative industry, we are disrupting the wedding industry by leveraging cutting-edge technology to provide seamless and...

We are seeking an experienced Senior Microsoft 365 / SharePoint Engineer to support and enhance our Client Portal and estate.   The Client Portal squad currently consists of a portal developer, SharePoint developer, two business analysts, development manager and product manager. The team work closely with our business owners and wider portal stakeholders.   The successful candidate will take ownership of Microsoft SharePoint Online solutions, document management platforms, Power Platform workflows, and integrations with business applications including Salesforce and other enterprise platforms.   This role combines development, support, architecture and operational responsibilities and requires someone comfortable working directly with business stakeholders, development teams, support functions and third-party vendors.   Our product vision is to provide a modern, global, digital client interface that enhances our clients ' experience 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...

About the Role We are seeking a Senior Test Engineer to join a newly formed team within a large scale DWP programme. The role will focus on ensuring the quality, security and performance of services supporting identity, authentication, authorisation and access management, while driving test automation and quality engineering practices across Agile delivery teams.   As a Senior Test Engineer  your main responsibilities will be to: Test Strategy & Planning: Define and implement a comprehensive testing strategy for microservices or APIs Automation: Develop and maintain automated test scripts using Cucumber for integration with continuous integration/continuous deployment (CI/CD) pipelines. Collaboration: Work closely with developers, QA engineers, and product managers in an Agile environment to identify issues. Security & Identity Testing: Define and execute testing activities for authentication, authorisation and identity management...

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...

Senior Software Engineer — Agentic Coding (AI Training) About The Role What if your software engineering expertise could define how the next generation of AI writes, debugs, and ships code on its own? We're looking for Senior Software Engineers in London to work at the frontier of agentic AI — building, evaluating, and improving autonomous coding systems that can reason through complex problems, execute multi-step plans, and produce production-quality software with minimal human intervention. This is where deep engineering skill meets the most transformative technology of our time. You'll work on real problems that push the boundaries of what AI agents can do — and your code, judgment, and architectural thinking will directly shape how these systems evolve. This is a fully remote, flexible contract role. If you're a senior engineer who's excited about agentic AI and wants to work on problems that genuinely matter, we want to hear from you....

Senior Front-End React Developer At Bridebook, we're digitising the wedding industry! Join us in transforming the wedding planning experience for engaged couples around the world. Full-time Contractor · Remote · Competitive Day Rate Who is Bridebook anyway? Bridebook is a revolutionary wedding planning platform that seeks to make wedding planning an enjoyable, intuitive, and rewarding experience for couples, guests, and industry partners. Launched in the UK, Bridebook has over 1,000,000 planning couples and has been featured in major outlets such as the New York Times, the BBC, and the App Store. After seven years and many iterations later, we have 2 in 3 engaged UK couples and 1 in 3 engaged German couples using Bridebook, and have recently expanded into the French and Irish markets. While we serve a very emotional and creative industry, we are disrupting the wedding industry by leveraging cutting-edge technology to provide seamless and...