Title: Senior Software Engineer (TypeScript & Ruby) Rate: Up to £450 Per Day Outside IR35 (3 months) Remote! Are you an experienced Senior TypeScript Engineer looking for your next contract opportunity? if so iO Associates are exclusively working with mission-driven technology company that's transforming how people experience financial recovery. Our client is on a journey … by Europe's largest credit management service, they're expanding into 17 European markets. To support this exciting growth phase, our client is looking for a Senior Software Engineer to join their team! The Opportunity: You'll join a product-focused team working across the fullstack - primarily with TypeScript , Ruby , and AWS - to … that impacts millions. This is a high-impact individual contributor role with opportunities to lead technically, mentor others, and shape engineering best practices as we scale. Their Tech Stack: Backend: TypeScript (Node.js), Ruby on Rails Frontend: TypeScript, React, Hotwire (Turbo/Stimulus) Infrastructure: AWS (Lambda, Fargate, Aurora, CloudFormation), PostgreSQL, Redis DevOps & Tooling: Serverless Framework, GitHub Actions, Terraform, Sidekiq More ❯
Job Role:Senior Software Engineer Reporting to: Lead Software Engineer Location: Head Office, White City Place, West London Contract type: Full Time, 37.5 hours per wee k About Us ME+EM is one of the UK’s fastest-growing luxury fashion brands. As a direct-to- consumer business we operate in a truly omnichannel way … successful business and our door is always open to new talent ready to contribute to our growth and evolution. About the Role We’re hiring a Senior Software Engineer (FullStack) to join ME+EM’s established Digital Platforms team. Following the successful completion of our digital transformation, we’re now focused on scaling our … platform, optimising customer experience, and driving continuous improvement across our architecture and engineering practices. This is an opportunity to help evolve a modern, high-performing tech stack, shape our engineering culture, and lead initiatives that improve both our product and delivery pipelines. The Digital Platform team owns the entire customer-facing digital stack, and is able More ❯
Senior Software Engineer – Python/Golang – Hedge Fund Senior Software Engineer – Python/Golang – Hedge Fund Get AI-powered advice on this job and more exclusive features. Alexander Ash Consulting provided pay range This range is provided by Alexander Ash Consulting. 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 Alexander Ash Consulting Senior Software Engineer – Python/Golang – Hedge Fund. A leading hedge fund is developing a new orchestration platform and are looking for a senior software engineer to play a key role on the build of an enterprise workflow orchestration platform. You … Employment type Contract Job function Job function Information Technology and Engineering Referrals increase your chances of interviewing at Alexander Ash Consulting by 2x Get notified about new Software Engineer jobs in London Area, United Kingdom . London, England, United Kingdom 2 weeks ago London, England, United Kingdom £50,000.00-£60,000.00 1 month ago London, England, United Kingdom More ❯
Wandsworth, Greater London, UK Hybrid / WFH Options
TravelPerk
by both Forbes and Wired. We’re revolutionizing the B2B corporate travel market, worth over $1.3 trillion, by simplifying the process for everyone involved. Are you a Software Engineer with extensive programming experience? Is your code fast, efficient and reliable? Do you particularly enjoy working with amazing people, having fun at work and building something awesome? If so … let’s talk! We’re not looking for stack experts. We’re looking for smart people who can bring in the best tools and processes to get the job done. Read more about our engineering team in this blog post by our Senior Director of Engineering, Ivan Peralta. You will work on a day-to-day basis with … team to design, architect and implement our product. TravelPerk is a next-generation platform to take the pain out of booking and managing business travel. As Senior Software Engineer, this position involves: Product development in Python/Django and/or React of a travel-related web-based product. Integrations between our product to 3rd party APIs. System More ❯
together chemists, physicists, engineers, and machine learning experts to push the boundaries of what's possible in early-stage drug discovery. The Role As a Senior ML Software Engineer in the DH Team, you will focus on building and scaling the platform-facing product that manages the full lifecycle of Aqemia's predictive models, our core … in production Collaborate closely with scientists to integrate diverse predictors (physics-based, AI-based, hybrid) into the platform Ensure reproducibility, traceability, and performance of model pipelines across the full lifecycle Develop APIs and tools that expose predictors as scalable services to other teams Contribute to software engineering best practices across the ML stack (testing, CI/… powers AI-driven drug discovery, combining quantum-inspired physics with generative models Real-World Impact : Every feature shipped helps scientists prioritize molecules and design better candidates, faster Modern Stack & Challenges : Python, FastAPI, Airflow, Snowflake, Kubernetes, ML workflows, scientific infra, data engineering at scale High Ownership, High Impact : Engineers contribute to architecture, tooling, and scientific decision-making Interdisciplinary Team More ❯
PRINCIPAL SOFTWARE ENGINEER CITY OF LONDON - 4/5 DAYS IN OFFICE £100,000 - £120,000 Our client, a leading investment management firm specialising in sports trading, is looking for a talented individual to join their expanding technical team. This is a unique opportunity to apply your expertise to real-world sporting events and contribute to a company … commitment to work-life balance and flexibility. Their high team retention speaks volumes about the supportive and engaging environment they've cultivated. THE ROLE: As a Principal Software Engineer, you'll be instrumental in developing sophisticated predictive models that forecast the outcomes of sporting events. You'll be working with strong quants coming from and statistics background, with … a keen eye for problem-solving. You'll work across the fullstack, contributing to both front-end and back-end development. This is a hands-on technical role and whilst a background in sports trading isn't essential, an interest in sports, particularly in a quantitative context, would be a plus. You'll be joining More ❯
Senior Software Engineer II - Language Tooling Senior Software Engineer II - Language Tooling Company Description Wise is a global technology company, building the best way to move and manage the world’s money. Company Description Wise is a global technology company, building the best way to move and manage the world’s money. Min fees. Max ease. … Full speed. Whether people and businesses are sending money to another country, spending abroad, or making and receiving international payments, Wise is on a mission to make their lives easier and save them money. As part of our team, you will be helping us create an entirely new network for the world's money. For everyone, everywhere. Job … Description More about our mission and what we offer . About The Role We are seeking a highly skilled and experienced Senior Engineer II, with a focus on tooling, to join our team. Our mission is to standardise, unify, and automate an ever-increasing portion of Wise’s codebase. We are committed to enhancing and expediting the developer More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Backend Software Engineer/Developer (C# .Net SQL) *London onsite* to £180k+ Are you a technologist Backend Software Engineer with a record of academic achievement? You could be progressing your career working on complex and challenging systems at a Hedge Fund with over $17 billion under management. As a Backend Software Engineer you'll … collaborate with a team of highly intelligent technologists and finance professionals to develop algorithmic trading systems working with a modern tech stack, with opportunities for technical ownership from day one. You'll partner with Quant teams to help architect valuation, risk and pricing systems, delivering massively scalable, high performance streaming compute operations. You'll be equipped with all … team in fantastic London (Soho) based offices that offer a wide range of facilities including nutritionally balance breakfast, lunch and all day snacks. Please note this role is full-time office based (Monday to Friday). About you: You have an outstanding record of academic achievement - minimum 2.1 in a STEM discipline from a top tier university (i.e. More ❯
Join to apply for the Senior Software Engineer role at Ripple Join to apply for the Senior Software Engineer role at Ripple At Ripple, we’re building a world where value moves like information does today. It’s big, it’s bold, and we’re already doing it. Through our crypto solutions for financial institutions, businesses … re ready to see your impact and unlock incredible career growth opportunities, join us, and build real world value. The Work We are looking for a Senior Software Engineer passionate about solving ambitious problems and working directly with Ripple Trading and Markets in the cross-border payments space. We are passionate about the growth of our engineers and … other partners. Continuing to support and complement Ripple’s Payments, Custody and Stablecoin business units What You’ll Do Be an ambitious builder, working up and down the stack, mixing software engineering, data engineering, and distributed systems knowledge to build modern enterprise payment applications. Build reliable, high-throughput, low-latency microservices to power a diverse range of trading More ❯
Senior Software Engineer - News Automation Platform Join to apply for the Senior Software Engineer - News Automation Platform role at Bloomberg Senior Software Engineer - News Automation Platform Join to apply for the Senior Software Engineer - News Automation Platform role at Bloomberg Bloomberg is a market leader in Financial Journalism. Our ecosystem is probably … deployment alongside leveraging open-source technologies like Kafka, RabbitMQ, Redis, Cassandra and Zookeeper. By joining our team, you’ll have the opportunity to work on a modern tech stack that blends infrastructure (~80%) and application development (~20%) whilst collaborating with a friendly and supportive team and contributing to a high-impact, high-throughput distributed system at the forefront … team level (architecture, workflows, coding practices, testing, etc..). Experience with high volume, high availability distributed system Seniority level Seniority level Mid-Senior level Employment type Employment type Full-time Job function Job function Engineering and Information Technology Referrals increase your chances of interviewing at Bloomberg by 2x Sign in to set job alerts for “Senior Software EngineerMore ❯
44k - £60k per annum Estimated Full-time Mindgard Canary Wharf, Greater London Mindgard is a London-based startup specializing in AI security. We've spun-out from a leading UK university, and our mission is to secure the future of AI against cyber attacks targeting Deep Learning, GenAI, and LLMs. This is an unsolved challenge globally, and we … capabilities across SaaS Webapps, to integrations that protect customer systems, to internal tooling that powers our AI threat intelligence. We use a variety of tooling across the tech stack, including Python, TypeScript, Postgres, Kubernetes, Docker, Terraform, Azure. In this role you'll be: Building, testing, and continuously delivering small,high qualitychangesto production. Pair programming with others on the … values. Curious-always looking for ways to improve our tech and product for customers. Mission-driven-care deeply about helping people use AI safely. Comfortable working across the stack as part of a small startup team. Competent coding with Python, TypeScript, or a similar language. Collaborative-comfortable working together to build quality fast (e.g. pair programming). Experienced More ❯
across the business, we are in this together! The way to thrive and shine within Starling is to be a self-driven individual and be able to take full ownership of everything around you: From building things, designing, discovering, to sharing knowledge with your colleagues and making sure all processes are efficient and productive to deliver the best … the office a minimum of 1 day per week. Our Engineering Environment Starling engineers are excited about helping us deliver new features, regardless of what their primary tech stack may be. Hear from the team in our latest blogs or our case studies with Women in Tech . We are looking for engineers at all levels to join … critical projects, and develop your skills in a rapidly evolving FinTech environment. You'll gain hands-on experience with Java, AWS, Postgres and other parts of our tech stack and have the chance to make a real impact on our security and customer experience. We're committed to your growth and will provide mentorship and support to help More ❯
Senior Staff Software Engineer page is loaded Senior Staff Software Engineer Apply locations London Time type Full time Posted on Posted Yesterday Job requisition id 252423 About Blue Yonder: Blue Yonder is a leading global supply chain solutions software product company and one of Glassdoor's "Best Places to Work". Doddle, recently acquired … shared values and our focus on making ecommerce logistics better for businesses, consumers, and the planet. About the role: We are looking for an experienced Senior Staff Software Engineer to contribute to the design, development, and implementation of our Returns Drop-off Kiosk solutions at Blue Yonder, as it prepares to scale. The role will focus on planning … their team, acting as an architect and a multiplier rather than an individual contributor. What you'll do: Support the design and development of applications across the entire stack, from database to user interface. Architect scalable, maintainable solutions that balance technical excellence with business needs. Drive technical decision-making and strategy. Establish coding standards, best practices, and technical More ❯
Senior Staff Software Engineer page is loaded Senior Staff Software Engineer Apply locations London | Time type Full time | Posted on Posted Yesterday | Job requisition id 252423 About Blue Yonder: Blue Yonder is a leading global supply chain solutions software product company and one of Glassdoor’s Best Places to Work. Doddle, recently acquired by … shared values and our focus on making ecommerce logistics better for businesses, consumers, and the planet. About the role: We are looking for an experienced Senior Staff Software Engineer to contribute to the design, development, and implementation of our Returns Drop-off Kiosk solutions at Blue Yonder, as it prepares to scale. The role will focus on planning … their team, acting as an architect and a multiplier rather than an individual contributor. What you’ll do: Support the design and development of applications across the entire stack, from database to user interface. Architect scalable, maintainable solutions that balance technical excellence with business needs. Drive technical decision-making and strategy. Establish coding standards, best practices, and technical More ❯
across the business, we are in this together! The way to thrive and shine within Starling is to be a self-driven individual and be able to take full ownership of everything around you: from building things, designing, discovering, to sharing knowledge with your colleagues and making sure all processes are efficient and productive to deliver the best … we're able to interact and collaborate in person. Our Engineering Environment Starling engineers are excited about helping us deliver new features, regardless of what their primary tech stack may be. We are looking for engineers at all levels to join the team. We value people being engaged and caring about customers, caring about the code they write … critical projects, and develop your skills in a rapidly evolving FinTech environment. You'll gain hands-on experience with Java, AWS, Postgres and other parts of our tech stack and have the chance to make a real impact on our security and customer experience. We're committed to your growth and will provide mentorship and support to help More ❯
from ideation to real usage. Here are 2 concrete examples with specs and timelines (we'd be delighted to demo any of these to you): Alex, a clinical engineer, built 'Slack for medical teams', supporting 1000s of channels per organisation and a real time single source of truth for patient data, in 4 weeks, picking up a large … senior executive role. Expert competency in TS, plus being reasonably tech + language agnostic. Comfortable with key frameworks/libraries like Angular, Node and React. Able to work fullstack in JS/TS. Values pragmatism and open discussion from first principles rather than dogma. Seeks to maximise not only self productivity, but combined team productivity … don't enforce any particular experience level, but you'll need to demonstrate most of the above through past projects and/or our assessment process. Our current stack & what to expect from the role We are tech agonistic, and collectively choose the best tools for the job. We're constantly looking to maximise our productivity and minimise More ❯
across the business, we are in this together! The way to thrive and shine within Starling is to be a self-driven individual and be able to take full ownership of everything around you: From building things, designing, discovering, to sharing knowledge with your colleagues and making sure all processes are efficient and productive to deliver the best … the office a minimum of 1 day per week. Our Engineering Environment Starling engineers are excited about helping us deliver new features, regardless of what their primary tech stack may be. Hear from the team in our latest blogs or our case studies with Women in Tech . We are looking for engineers at all levels to join … promote maintainable and extensible software, automated testing and Continuous Integration & Delivery. Experience on distributed systems with a focus on resiliency and maintainability is highly valued. Our Core Tech Stack The following technologies form the foundation of our platform. While expertise in all areas is not required, experience with them is a plus: Java, primary language for our backend More ❯
About this Role As a Software engineer, AI retrieval, you will be responsible for designing, implementing, and optimizing the AI retrieval systems that power our platform. You'll work closely with our data scientists, product managers, and other engineers to ensure that our AI models are integrated seamlessly into our applications, providing fast and accurate results. This role … methodologies, including unit testing with pytest, mocking, and integration testing. Versioning : Familiar with semantic versioning and maintaining changelogs to track changes and updates. Data structures : Proficient in using stack, queue, and priority queue data structures (via collections) to manage and process data efficiently. Functional programming : Experienced in functional programming concepts such as map, filter, reduce, generators, and decorators. … services : Experience with cloud platforms like AWS, GCP, or Azure. Open source contributions : Contributions to open-source projects or a strong portfolio of personal projects. Benefits & perks (UK full-time employees): Generous PTO, plus company holidays Comprehensive medical and dental insurance Paid parental leave for all parents (12 weeks) Fertility and family planning support Early-detection cancer testing More ❯
The Role Work with a small team of experienced and highly talented developers in an environment with cutting-edge technologies. Work closely with Product, Design, and Analysis, taking full responsibility and ownership from conception to post-deployment in a fast-paced, collaborative environment. Data Analysis and Insights - Analyze user behavior, market trends, and performance metrics to identify growth … performance, and communicate findings to stakeholders. User Experience Enhancement - Identify areas for improvement in the user experience and implement strategies to increase user engagement and conversion rates. Our Stack - React.JS, Redux, Node.js, Ruby on Rails, AWS, Elastic Search, Redis, MySQL Your Experience & Skills 6+ years of proven experience. Experience building web applications from scratch in a production environment … tackling complex engineering problems at a great scale. We're accountable for bringing the company's vision to life by navigating our progress into flawless execution and encouraging full ownership and independence in all projects. More ❯
The Role Work with a small team of experienced and highly talented developers in an environment with cutting-edge technologies. Work closely with Product, Design, and Analysis, taking full responsibility and ownership from conception to post-deployment in a fast-paced, collaborative environment. Data Analysis and Insights - Analyze user behavior, market trends, and performance metrics to identify growth … performance, and communicate findings to stakeholders. User Experience Enhancement - Identify areas for improvement in the user experience and implement strategies to increase user engagement and conversion rates. Our Stack - React.JS, Redux, Node.js, Ruby on Rails, AWS, Elastic Search, Redis, MySQL Your Experience & Skills 6+ years of proven experience. Experience building web applications from scratch in a production environment … tackling complex engineering problems at a great scale. We’re accountable for bringing the company’s vision to life by navigating our progress into flawless execution and encouraging full ownership and independence in all projects. #J-18808-Ljbffr More ❯
prioritizing security, reliability, and user-centric solutions, we empower OpenAI employees to drive impactful AI research, corporate operations, and product innovation. About the Role As a Network Security Engineer at OpenAI, you will play a critical role in architecting and maintaining both campus and cloud network infrastructure. You will design and implement secure, scalable, and high-performing network … Strong Routing and Switching experience including routing protocols (BGP, OSPF and MPLS) Experience with Network monitoring tools/protocols and logging pipelines like SNMP, Syslog, Netflow, Elasticsearch (ELK Stack) and Grafana Strong understanding of network security principles including ACLs, Firewalls, VPN, 802.1x authentication, profiling and RBAC Proficiency in a modern programming language (Python, Golang, Ruby, etc.) Strong knowledge … with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity. We are an equal opportunity employer, and we do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status More ❯
The Role Work with a small team of experienced and highly talented developers in an environment with cutting-edge technologies. Work closely with Product, Design, and Analysis, taking full responsibility and ownership from conception to post-deployment in a fast-paced, collaborative environment. Data Analysis and Insights - Analyze user behavior, market trends, and performance metrics to identify growth … performance, and communicate findings to stakeholders. User Experience Enhancement - Identify areas for improvement in the user experience and implement strategies to increase user engagement and conversion rates. Our Stack - React.JS, Redux, Node.js, Ruby on Rails, AWS, Elastic Search, Redis, MySQL Requirements 6+ years of proven experience. Experience building web applications from scratch in a production environment Passion for More ❯
welcome debate, but love reaching quick decisions) ... and we Eat that Frog! (we take on the hardest thing first) Role Overview We are seeking a Senior Software Engineer to join our team as we build and scale innovative AI-driven products that bring much-needed transparency to the home-buying process and transform the way property is … AI Engineering, or are motivated to make that transition. You are excited about the potential of LLMs, AI agents, and agentic architectures. You have in depth experience with fullstack or backend Python development. You value shipping early and often to get customer feedback and then iterating quickly to improve the product. You have excellent verbal More ❯
W1, Marylebone High Street, Greater London, United Kingdom
RedTech Recruitment Ltd
site, 2 days remote) Salary – £80,000 – £100,000 + equity + comprehensive benefits Requirements for Lead Application Software Developer Several years of commercial experience within a Software Engineer/Developer role Experience with JavaScript and ideally, node.js and related technologies/frameworks Experience working for a company where SaaS has been implemented in commercial organisations This company … junior team members Work on web applications using a diverse toolset based around JavaScript technologies. While there will be opportunities to work across the stack. The current tech stack includes: Web (UI): JavaScript (backbone.js, d3.js, three.js, pdf.js), Less/CSS Web (Backend): Node.js, PostgreSQL, Elasticsearch, Redis What the role offers: The chance to work on a diverse toolset … you require reasonable adjustments for your application or during the review process, please highlight this by emailing (if this email address has been removed by the job-board, full details for contact are available on our website). Keywords – Software Engineer/Application Developer/Back-End Software Engineer/node.js developer/node.js More ❯
equities risk domain. Previous Financial Services experience is not required. Essential functions Design and development of scalable, high-traffic systems Championing engineering best practices across the team Building full-stack applications in TypeScript (React) Qualifications 5+ years as a Senior software engineer Deep backend knowledge usingNode.js, with full-stack ability More ❯