Ruby Software Engineer jobs in Islington

Senior Software Engineer Node.js / AWS / React London (Hybrid, 3 days onsite) Be one of the first applicants, read the complete overview of the role below, then send your application for consideration.Are you the kind of Senior Software Engineer who enjoys taking something fast-and-scrappy and turning it into something scalable, elegant, and genuinely robust?This is a chance for a Senior...

Software Engineer Stealth AI Startup | Seed Stage | On-site We’re hiring for an early-stage but fast-growing AI startup building a cloud-native analytics platform that turns large volumes of LLM output into structured, queryable intelligence for businesses and brands. Their stack is fully on AWS, heavily event-driven, and designed for scale. They work with modern serverless and...

Role: Software Engineer - Full-Stack - TypeScript, Node.js Location: London Working Model: Hybrid - 3 Days Salary: Up to £99,000 Ready to build tech that actually means something? This team is powering the next generation of electrification — EVs, solar, batteries, heat pumps, smart devices — all connected through a platform that’s scaling fast and rewriting the rulebook in green-energy...

You will play a critical role in building and evolving systems within a regulated payments / financial services environment, balancing engineering excellence and platform resilience. Key Responsibilities: Engineering Leadership & Strategy Own the software engineering strategy, aligned with business, product and regulatory objectives.

Software Engineering Lead (Banking) Central London (Hybrid) Permanent My FS Client requires an agile and versatile specialist and team manager with extensive hands-on expertise in .Net/C# along with managing a hybrid tech stack involving applications in Microsoft SQL Server, Azure, etc. Business Area The role requires an experienced people manager, and an individual that is comfortable to work...

You will own the lifecycle of services that handle identity verification, risk assessment, and onboarding for a global partner base.

You will be a significant hire spearheading much of their 2025 development. Much of the team will be built around you, and significant hires have already been made.

You will develop, optimise and maintain their GPU driver stack, focusing on the performance and efficiency of graphics and compute workloads on cutting-edge GPU architectures.

I'm looking for a Contract Java Software Engineer to join my client in their FinTech Business Unit. 6 month | Inside IR35 | Hybrid (1x week London) | £550 per day What you'll do: Develop scalable, high-performance systems and microservices Solve complex technical challenges and advocate best practices Support compliance processes with advanced tooling and analyticsRequirements: - Java + least...

Senior Software Engineer - .NET Core, Blazor, SQL Server Location: Remote (UK-based) Salary: £50,000 - £60,000 (depending on experience) Benefits: Company pension scheme, 25 days holiday + bank holidays Applause IT are recruiting for a Senior Software Engineer on behalf of a highly impactful, tech-driven not-for-profit organisation that's tackling one of the world's most pressing health...

Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them...

You will lead engineers working across frontend, backend, UX and data, while collaborating closely with other technical teams to deliver robust, scalable products.

You will work alongside experienced specialists, influence technical direction, and play a key role in supporting the company’s next stage of growth

You will be in your office hub 2 days per week, once a month you will be required in London for a day and the next month in Hampshire - the other times you can work from home. Interview process: 3 stages Salary: £120,000 + benefits

Software Engineer – PHP & Golang Fully Remote – Within UK PHP / Golang / JavaScript £60,000-£65,000 I’ve recently partnered with a leading Prop-Tech business in London who are looking to add a Software Engineer to their team who specialises in PHP & Golang! The company have seen rapid success over the past 10 years and have built an advanced platform used by their expanding portfolio of...

Software Tester – 12 months + contract - Outside IR35 My client is a fast-growing Engineering company who is seeking a Software Tester to join their team on an initial 12 months contract. As a Software Tester your required: - To be responsible for independent, third-party testing of application software produced in the software group. This includes testing applications that integrate control...

You will be adept in trouble shooting, communication, client liaison and management skills. The main responsibility of the role is to ensure the stability, performance and reliability of integration and enterprise systems across the client base.

You will create a case that is determined by the threshold on the platform which will be of a low, medium or high status.

AWS Platform Engineer - Active SC, Security, ISO27001 £550 per day (Inside IR35) Remote / London My client is an instantly recognisable consultancy who urgently require an AWS Platform Engineer with Active Security Clearance (SC), for an end client within the public sector. Key Requirements: Proven commercial experience working as a Platform Engineer Active Security Clearance (SC). Strong...

Software Engineer - C++ Title: Software Engineer - C++ Company: Elite Software House Location: Remote (London office) Salary: £80,000 - £115,000 Skills: C++, Algorithms, Boost Overview: Are you someone that thinks that writing slick, classy C++ code can and should be an art? Would you like to be part of an internationally recognised team of C++ experts led by the brightest C++ minds in the...

You will gain experience which will enable your career to take a leap forward.

You will deliver high-quality production code and design control system architectures for real time environments that support robotic movement, manipulation, and teleoperation.

You will be rewarded with an excellent package that includes:

Lead Software Engineer Stealth AI Fintech Startup | London | Hybrid (3 days on-site) We’re hiring on behalf of an innovative Fintech startup that is building an AI-driven platform that’s rethinking how investors analyse, access, and manage alternative assets (e.g. private equity, private credit and other private markets). They've built there MVP, raised funding from experienced fintech founders...

You will have a dedicated mentor with expertise in software development to coach you into becoming the best engineer you can be.

You will stand out if you have low-level personal projects (e.g., compilers, networks, OS...

You will not be considered if you do not have a portfolio/code examples to share