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Senior Software Engineer, Ruby

Senior Software Engineer Hayes, London Hybrid We are looking for a Senior Web Application Developer with 5+ years of experience in building and maintaining scalable, high-quality applications to join our growing tech team ...

Blockchain Developer Ethereum/ TypeScript/ JavaScript/ Web3 Blockchain & AI Start up £100k

Opus Recruitment Solutions provided pay range This range is provided by Opus Recruitment Solutions. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Opus Recruitment Solutions <h ...

Senior Software/DevOps Engineer High Frequency Trading Firm London

My client, a highly prestigious hedge fund, is seeking a DevOps Engineer with a strong developer background to join their Platform Engineering team in London. Embedded within a high-performing technology function, you will play a key role in evolving a modern, GitOps-driven ...

Engineering Lead

Get AI-powered advice on this job and more exclusive features. Attio is on a mission to redefine CRM for the AI era. We’re building the first AI-native CRM — designed for the most ambitious go-to-market teams. We recently announced our $52M Series B, led by GV (Google Ventures), with su ...

Full Stack Engineer

Senior Full Stack Software Engineer | London | £100,000 - £150,000 | Python | React Location: London-based (hybrid) Salary: £100,000 - £150,000 + equity Tech Stack: Backend: Python ...

Full Stack Engineer, AI systems

About The Role A1 is building a proactive AI chat app for everyday users to bring intelligence to conversations, errands, organising and workflows. Unlike traditional chat-based applications, our product focuses on achieving high reliability for long-running workflows, persistent context, and rea ...

Hands On Software Engineering Managers/Tech leads – C#/.NET/AZURE - Data & Performance This is a hands-on technical leadership role with a strong focus on data architecture, application performance, and platform scalability. You’ll lead a small senior engineering team, comb ...

Artificial Intelligence Engineer

AI Engineer | Hybrid | London | Outside IR35 | 6+ Months Cititec are working with a global financial markets organisation on a large scale data and platform transformation. They are looking for a Senior AI Engineer to help accelerate the migration of a co ...

Senior Technical Writer

API SDK technical writing developer experience documentation We are seeking a Senior Technical Writer to enhance the developer experience within our Engagement Docs Team. This role offers the flexibility to work from anywhere in Slovakia or the Czech Republic, with office spaces available in Bratisl ...

Senior AI Engineer

Join a globally respected investment platform at the forefront of applying AI to complex, real-world decision making. We’re seeking a Senior AI Engineer to design and deploy production-grade LLM systems that directly enhance how investment and operational teams access, analyse, and act on information at scale ...

Senior AI Engineer

Join a globally respected investment platform at the forefront of applying AI to complex, real-world decision making. We’re seeking a Senior AI Engineer to design and deploy production-grade LLM systems that directly enhance how investment and operational teams access, analyse, and act on information at scale ...

Senior AI Engineer

Join a globally respected investment platform at the forefront of applying AI to complex, real-world decision making. We’re seeking a Senior AI Engineer to design and deploy production-grade LLM systems that directly enhance how investment and operational teams access, analyse, and act on information at scale ...

Principal Software Engineer | Applied AI | Fully Remote

Principal Software Engineer | Applied AI | Fully Remote Principal Software Engineer required for well backed and rapidly growing start-up to help build and scale systems at the cutting edge of applied AI. This is a high-impact rol ...

Principal Software Engineer | Applied AI | Fully Remote

Principal Software Engineer | Applied AI | Fully Remote Principal Software Engineer required for well backed and rapidly growing start-up to help build and scale systems at the cutting edge of applied AI. This is a high-impact rol ...

Principal Software Engineer | Applied AI | Fully Remote

Principal Software Engineer | Applied AI | Fully Remote Principal Software Engineer required for well backed and rapidly growing start-up to help build and scale systems at the cutting edge of applied AI. This is a high-impact rol ...

C# / .NET Engineer

About the job C# / .NET Engineer (Commodities / Derivatives) | £75k - £90k | London (Hybrid) All potential candidates should read through the following details of this job with care before making an application.We’re looking for a strong C# / .N ...

C# / .NET Engineer

About the job C# / .NET Engineer (Commodities / Derivatives) | £75k - £90k | London (Hybrid) We’re looking for a strong C# / .NET Engineer to join a Back Office IT team within a financial markets environment. This role combines hands-on development ...

Software Engineer

Software Engineer – Real‑Time Python Systems (Front Office) A leading global investment bank is growing a front‑office engineering team responsible for building and owning high‑performance, real‑time systems used directly in live environments. This ...

Software Engineer

Software Engineer – Real‑Time Python Systems (Front Office) All the relevant skills, qualifications and experience that a successful applicant will need are listed in the following description.A leading global investment bank is growing a front‑office engineerin ...

Site Reliability Engineer

Role: Site Reliability Engineers (SRE)Find out exactly what skills, experience, and qualifications you will need to succeed in this role before applying below.Location: London, UK - 5 Days OnsiteJob Type: Contract & Fixed term Employment Domain:Banking / Finance / Trading Market Ris ...

AWS/Python Software Engineer

We’re looking for a talented and proactive AWS/Python Software Engineer to join our data engineering team. You will be designing and building data systems, APIs, and event-driven services that power Citywire’s global products. We prototype fast, ship often, and iterate quickly, but we also know whe ...

Engineering Manager PHP

Alto Software Group is a B2B SaaS company that powers more than half of all UK housing transactions each year. We create software solutions that connect businesses and consumers, delivering a one-stop shop for estate agents and home builders. Our goal is to drive efficiency, speed up transactions, reduce r ...

Lead Security Engineer Chase UK

Job Summary We know that people want great value combined with an excellent experience from a bank they can trust, so we launched our digital bank, Chase UK, to revolutionise mobile banking with seamless journeys that our customers love. We're already trusted by millions in the US and we're quick ...

Manager, Forward Deployed Engineering London

Location London, UK Employment Type Full time Location Type Hybrid Department Model Deployment for Business About the team OpenAI’s Forward Deployed Engineering team partners with customers to turn research breakthroughs into ...

Engineering Manager – Growth Platform

Overview Kraken is a mission‑focused company rooted in crypto values. As one of our Krakenites, you’ll help accelerate the global adoption of crypto so that everyone can achieve financial freedom and inclusion. For over a decade our focus has attracted the world’s most talented crypto experts. </ ...

Senior Software Engineer, Ruby

Senior Software Engineer Hayes, London Hybrid We are looking for a Senior Web Application Developer with 5+ years of experience in building and maintaining scalable, high-quality applications to join our growing tech team ...

Senior Software Engineer, Client Solutions Cloud & Events

A prominent financial technology firm in Greater London is looking for a Senior Software Engineer to design and build resilient, event-driven systems. You'll engage across the engineering lifecycle while using modern AI-assisted tools. Candidates should have over 5 years of experience in software development and ...

Senior Software Engineer Remote First (UK) + Equity

A UK-based technology firm is seeking a Senior Software Engineer to join its remote-first team. This role involves end-to-end feature delivery, allowing for backend or full-stack involvement. Candidates must have strong C#/.NET experience and understand microservices and distributed systems. The company offers a ...

Senior Software Engineer — AI+Materials Platform (Equity)

A cutting-edge materials technology company in London is seeking a Senior Software Engineer to define the technical foundations of their AI-driven platform. This hands-on role involves collaboration with scientists and engineers, focusing on backend architecture and product performance. The ideal candidate has 5 ...

Senior AI Platform Engineer

A leading AI-driven company in the United Kingdom is seeking a Senior Software AI Engineer to design and maintain AI capabilities, drive innovation, and enhance product efficiency. The ideal candidate will have over 5 years of backend development experience and a strong understanding of AI tools, along with a pr ...

Senior Software Engineer — Remote Fintech Impact

A forward-thinking fintech organization in the UK is seeking experienced developers to build innovative banking solutions. Work in a 100% remote environment with a focus on collaboration and cutting-edge technologies such as Clojure, React Native, and AWS. Ideal candidates will have a background in backend, web ...

Senior Software Engineer — Hybrid, Mission Critical Systems

A leading technology company is looking for a Senior Software Engineer in Greater London. You will design, develop, and maintain critical software, working on diverse projects with a focus on innovation. Key responsibilities include development, architectural influence, and collaboration within a dynamic team. T ...

Senior Software Engineer – Shape Mission Critical Systems

A leading defense technology firm in Greater London seeks a Senior Software Engineer to develop and maintain critical software solutions. You will work on diverse projects, influencing architectural decisions and engaging in hands-on coding. The ideal candidate will have experience in backend and frontend develo ...

Senior Mobile QA Lead — Automation & Quality Champion

A digital technology consultancy is seeking a Senior QA to champion quality and collaborate effectively in a hybrid role. Based in the UK, the ideal candidate will excel in mobile and backend testing, employing automation frameworks like Appium and integrating CI/CD processes. With 27 days of annual leave, a pen ...

Full Stack Engineer — Platform Performance

A leading freelancing platform is looking for a Full Stack Software Engineer in London. In this role, you will work across the stack to optimise performance through frontend and backend technologies. Candidates should have 2-4 years of experience, strong skills in Angular and TypeScript, as well as familiarity w ...

Senior Product Engineer — Build Trustworthy SaaS Platform

A cybersecurity startup is seeking a Senior Engineer to solve innovative end-to-end product challenges. The role requires collaboration across teams, delivery of high-quality systems, and mentorship of junior engineers. Candidates should have deep experience in either backend (preferably Go) or frontend (prefera ...

Engineering Lead: Video & Broadcast Platform

A leading broadcasting company in Greater London is seeking an Engineering Lead for their Content Platform. The role involves building and operating cloud-native services on AWS, ensuring high engineering standards, and enhancing content delivery systems. Candidates should have strong backend engineering experie ...

Remote Elixir Engineer — LiveView & TDD Focus

A leading marketing technology firm is seeking an Elixir Software Engineer to join their remote team. The role involves working on innovative projects, mentoring fellow engineers, and having a strong influence on the team's culture. Candidates should bring a minimum of 3 years of backend experience, preferably w ...

Full‑Stack Engineer: Python, APIs & Data Platforms

A leading fintech start-up is looking for a Backend Engineer to design systems and enhance functionality within their platform. The role involves working with Python, Docker, and AWS to improve data processing and automation. The ideal candidate has strong collaboration skills, experience with API design, and ca ...

Payments Integrations Engineering Manager — Remote

A dynamic payment orchestrator is seeking an experienced Engineering Manager to lead the Integrations team. This role involves owning the technical direction, managing a multidisciplinary team, and driving the evolution of APIs across global payment methods. Ideal candidates will have proven experience in managi ...

Client Facing Deployment Engineer

A dynamic technology firm in Greater London seeks experienced backend or full-stack professionals. The role involves working directly with clients to build customized solutions and integrating with various systems. Ideal candidates will have over 5 years of experience in Python and TypeScript, possess strong com ...

Full Stack AI Interfaces Engineer (Prototype Driven)

A pioneering tech company in London is looking for a candidate to rapidly prototype AI interfaces and translate experimental concepts into robust applications. Successful candidates should possess deep knowledge of React, Next.js, and backend technologies like Node.js or Python. The role demands a collaborative ...

Senior Fullstack Engineer Vendor Risk Platform (Remote)

A leading technology company in Greater London is seeking a Senior Software Engineer to lead complex projects and contribute to the engineering culture. The ideal candidate will have over 7 years of full-stack experience with a focus on backend systems, strong communication skills in distributed teams, and a tra ...

Engineering Lead: Own AI Product, Hybrid London | Equity

A startup in AI product development is seeking an Engineering Lead to drive product decisions and lead a small team in a highly autonomous and fast-paced environment. Ideal candidates will have proven startup experience, a strong desire for ownership, and technical expertise in backend development (Go preferred) ...

Azure AI Engineer: Build Production Ready Gen AI Apps

A data and AI consultancy is looking for an AI Engineer to join their London team. This role involves implementing AI solutions, developing backend services and REST APIs in Python, and building AI applications. Candidates should have a solid background in software engineering, experience with Azure services, an ...

Azure Cloud Native Lead Hybrid Contract (6 12m)

A leading tech consulting firm in London is looking for a Microsoft Cloud Native Lead to develop scalable web applications and SaaS solutions. Candidates should have at least 5 years of experience and proficiency in Azure, React, and .NET. Responsibilities include designing applications, collaborating with teams ...

Principal Software Engineer Architect, Enterprise Systems

A technology company in the United Kingdom is seeking a Principal Software Engineer to shape the technical direction of its platform. The successful candidate will provide leadership and architectural vision, influence how systems are designed and operated, and ensure the products meet scalability and security d ...

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