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Ruby on Rails Developer / Senior Ruby on Rails Developer Location: Brighton (Hybrid one day per week in the office)Salary: Up to £100kWorking Pattern: 4-Day Week (Full Salary)We're working with an established and profitable SaaS company that has been building market-leading software for over a decade. With thousands of customers worldwide and a strong reputation in its sector, the business has grown sustainably without external investment, creating a stable and supportive environment for engineers who want to focus on building great products rather than chasing aggressive growth targets.This is an opportunity to join a small, highly collaborative engineering team where your ideas will be heard, your work will have a direct impact, and you'll be trusted to take ownership of meaningful projects.The Opportunity The business is looking to hire both a Ruby on Rails Developer and a Senior Ruby on Rails Developer to help deliver customer-facing features, improve existing functionality and contribute to the ongoing evolution of the platform.Engineers work closely with Product, collaborate regularly with teammates and are encouraged to take an active role in shaping solutions. The team values quality, pragmatism and continuous improvement over unnecessary process or rigid ways of working.For senior candidates, there will also be opportunities to mentor other engineers, influence technical direction and help drive engineering best practices across the team.Tech Stack RubyRuby on RailsPostgreSQLRSpecJavaScriptStimulusTurboTailwind CSSBootstrapAWSHerokuThe team works across the full stack and is looking for engineers who enjoy contributing throughout the development lifecycle.What They're Looking For Commercial Ruby on Rails experienceExperience working on SaaS or product-based applicationsStrong communication and collaboration skillsProduct-focused mindsetComfortable working within a small, agile teamPassion for building quality softwareInterest in learning and continuous improvementFor senior candidates, experience mentoring engineers and influencing technical decisions would be highly beneficial.Why Join? Full salary for a 4-day working weekProfitable and financially stable businessSmall engineering team with genuine influenceProduct-led environment focused on solving real customer problemsDedicated learning and development time (20%)Strong engineering culture with excellent staff retentionOpportunity to work alongside experienced engineers in a collaborative environmentExposure to AI tooling and emerging technologiesHigh trust, low bureaucracy and genuine autonomyBenefits 4-day working week with no reduction in salary30 days annual leave7% employer pension contributionHealth Cash PlanDedicated training budgetHigh-quality equipmentMacBook providedOngoing learning and development supportIf you're looking for a long-term opportunity within a stable, product-focused SaaS business where engineering quality is genuinely valued, we'd love to hear from you.TPBN1_UKTJ

We are searching for a Senior Ruby on Rails Developer to play a critical role in a cutting edge technology team. Alongside the team, you will be responsible for designing, developing, and maintaining advanced web services and applications using the Ruby on Rails framework.What You'll Do\n\n • develop and maintain Ruby web services and applications, focusing on Ruby on Rails framework.\n, • Collaborate with mobile developers and QA Engineers to ensure smooth integration and quality.\n, • Interact with RESTful APIs to connect applications to back-end services.\n, • Work with relational databases.\n, • Utilize Git for version control to track and manage code changes.\n, • Understand and apply knowledge of SAML, PKI, and cryptography (preferred).\n, • Apply DevOps practices to ensure efficient and seamless development workflow (preferred).\n, • Create and maintain comprehensive development documentation.\n, • Ensure code quality and adherence to best practices through testing and code reviews.\n, • Optimize applications for security and scalability.\n, • Stay updated with the latest industry trends and technologies related to Ruby development.\nWhat You'll Bring\n\n, • 5+ years of experience as a Ruby (on Rails) developer;\n, • Experienced in interacting with RESTful APIs;\n, • Experienced in relational databases;\n, • Solid knowledge of Git;\n, • Knowledge of SAML, PKI and cryptography are a plus;\n, • Knowledge of DevOps practices is a plus;\n, • A mindset to create and maintain development documentation;\n, • Ability to work effectively in a team and communicate effectively with stakeholders.\n

Ruby on Rails Developer / Senior Ruby on Rails Developer.

Mid-Level Ruby Developer sought for a FinTech company in London. The role involves Ruby on Rails, JavaScript, and AWS.

Senior Full Stack Software Engineer | AI Startup.London | Hybrid (2–3 days per week with flexibility).AI authentication product that's changing how people securely interact with technology.The AI doesn't rely on passwords, fingerprints or facial recognition.Instead, it learns how people naturally

Experience as an application developer in finance or investment banking (Market Risk, P&L, or financial modeling).

Aioi Nissay Dowa Europe's R&D Lab in the United Kingdom is seeking a Senior Software Engineer 2 to contribute to delivering products and lead projects end-to-end.You will mentor peers, set engineering standards, and may step into line management as the team grows.Work with ML Engineers, Product Mana

Senior Software Engineer | London | £80,000 - £150,000 | Python | React.Are you a software engineer who enjoys shipping real products, solving tangible customer problems, and seeing your work in production quickly?.We are working with a Series A AI technology company building automation software t

As a Software Engineer III at the company, you serve as a seasoned member of an agile team to design and deliver trusted market-leading technology products in a secure, stable, and scalable way.You are responsible for carrying out critical technology solutions across multiple technical areas within

Senior Software Engineer in London (Hybrid).You will design and deliver scalable, secure software powering our global financial wellbeing platform, collaborating across product, engineering and QA teams.You will work on backend with C#,.NET Core, microservices on Azure and frontend with Angular/Type

Morgan in London seeks an experienced software engineer to deliver secure, production-grade code and lead data projects across engineering, product managers and stakeholders.The role emphasizes AI-assisted development, secure coding practices, and a strong SDLC, with mentorship to junior engineers a

At Trustonic, we make smartphones affordable for the many, enabling global access to devices and digital finance through the world’s most secure smartphone locking technology.We partner with mobile carriers, retailers, and financiers across 30+ countries, powering device financing solutions that d

This role will be a mid or senior level engineer dependant on experience.Redgate's Foundry is our innovation incubator, the team scanning the horizon for Redgate's next big opportunity.This role exists because that kind of work needs engineers who are genuinely excited by discovery: people who can f

Location: London, UK (Canary Wharf) Duration: Sep 2026 – June 2027 On-site Expectation: Up to 5 days per week in office.Brief about the Team & Fractal: Fractal Analytics is Leading Fortune 500 companies leverage Big Data, analytics, and technology to drive smarter, faster and more accurate decisio

At the company, we're on a mission to help some of the world's biggest retailers make smarter decisions through data.As we continue to grow, we're looking for a Senior Software Engineer in Test to help us take our quality engineering capability to the next level.This isn't a traditional QA role.We'r

Speechify is the easiest way to listen to the world’s information.Articles on the web, documents in the cloud, books on your phone.We absorb it all and let you listen to it at your desk, on the go, at your own speed, and with tools that make learning easier, deeper, and faster.What streaming servi

Founded in 1994, Sports Interactive became a wholly owned subsidiary of SEGA Europe in 2006.Based at the Here East technology hub in Stratford, East London, the SI team continues to expand as we bring our titles to an ever-growing audience across an increasing variety of platforms.To support our gro

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible.We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible.As a Lead Software Engineer at JPMorganChase within the Data P

Redgate’s Foundry role seeks mid or senior engineers who enjoy discovery, hypothesis testing, and rapid decision-making.You will explore horizon-scanning, ideation, prototyping, and direct customer validation within a small team spanning software and ML engineering.The role emphasizes autonomy in

Jet Airline Company PLC is seeking a Lead Software Engineer for Departure & Compliance to shape the technical strategy for mission-critical airport platforms.You will own design, data integration, and resilient software across DCS, reservations, and regulatory interfaces, while leading a small team

Be an integral part of a team that's constantly pushing the envelope to enhance, build, and deliver top-notch technology products.As a Software Engineer III at JPMorgan Chase within the Global Banking Platform (GBP), you are an integral part of a team that works to enhance, build, and deliver truste

Forter is looking for a Senior Software Engineer to join a strong and dynamic AI Engineering team.We are the focal point for AI initiatives in Forter, striving to constantly bring innovation and leverage AI capabilities across all company teams and products.Today, AI is central to how Forter operate

Cisco ThousandEyes is a Digital Experience Assurance platform that empowers organizations to deliver flawless digital experiences across every network - even the ones they don't own.Powered by AI and an unmatched set of cloud, internet and enterprise network telemetry data, ThousandEyes enables IT t

Euphoric is seeking a Software Engineer to contribute to their AI-first benefits platform.The role offers ownership and the opportunity to work on innovative features leveraging AI technologies.Candidates should have over 2 years of experience, strong skills in React/Typescript and Python, and a pas

Design and evolve GraphQL APIs, ensuring consistency, performance, governance, and an exceptional developer experience.

Experience as an application developer in finance or investment banking (Market Risk, P&L, or financial modeling).

Join a team that is redefining how enterprise infrastructure technology is built, delivered, and scaled.At JPMorganChase, we invest in our engineers — giving you access to cutting-edge tools, meaningful mentorship, and the opportunity to grow your career across one of the world's most complex and

Swap is the infrastructure behind modern agentic commerce.The only AI-native platform connecting backend operations with a forward-thinking storefront experience.Built for brands that want to sell anything - anywhere, Swap centralises global operations, powers intelligent workflows, and unlocks marg

Help shape the technical direction of the Identity Platform, balancing customer experience, security, performance, and developer usability.

Mentor junior developers, providing guidance on best practices and code reviews.

Join us to shape the future of payments technology and make a real impact on your career.As part of our agile team, you'll help build trusted solutions that power global transactions.You'll have the opportunity to grow your skills, collaborate with talented colleagues, and contribute to a culture

With continuous learning, inclusivity, and developer experience a focus of our work culture you will work with closely with some of the best local and global software engineers, production management teams, traders, sales, Quants and product owners as well as find opportunities to enhance your skill

Longshot Systems Ltd is seeking a Senior Software Engineer to join the team that owns and develops our trading platform.You will architect and implement features to meet performance, stability, and product goals while upholding technical standards, CI/CD, observability and security.Our Golang-centri

Marks & Spencer in London is seeking a Senior Software Engineer to join the software engineering team to design, build, release and maintain scalable products for millions of customers and thousands of colleagues.You will lead technical initiatives, contribute to architecture decisions, and mentor o

Are you passionate about building secure, scalable software and cloud infrastructure that supports critical services in production? Do you enjoy collaborating across teams, improving engineering practices, and helping others grow while delivering high-quality solutions?.Working within Information Se

Senior Full-Stack Software Engineer, (Forward Deployed), GPS.Scale’s rapidly growing Global Public Sector team is focused on using AI to address critical challenges facing the public sector around the world.Creating custom AI applications that will impact millions of citizens.Generating high-quali

Prolific is seeking a Senior Software Engineer II to lead technical direction and deliver scalable, secure solutions within one of our product teams.You will mentor engineers and guide projects to successful deployment while upholding high coding standards and strategic thinking.You will collaborate

Engineer the future of global finance.At Citi, our Tech team doesn't just support finance - we are helping to redefine it.Every day, $5 trillion crosses through our network.We do business in 180+ countries operating at a scale few can match.From deploying advanced AI to helping shape global markets,

Whereas the Core team obsesses over the self‑service developer journey, our focus is on enterprise customer adoption: the usage insights, cost controls, RBAC , compliance, and data residency capabilities that enterprise IT and security teams depend on.

Sharegain began with one question: If the largest institutions solely exercise the right to lend their stocks, bonds, and ETFs, what would it take to unlock this revenue opportunity for every investor?.Our team of experts in the UK, US and Israel built the solution: a platform that empowers online b

Unitary is a fast-growing AI startup building a factory for custom operations agents and Virtual Agents that automate complex workflows.We are a remote-first team spread across Europe with a strong focus on practical AI deployment for midmarket clients.As a Senior Software Engineer, you will lead pr

Aveni is seeking a Senior Software Engineer to build and scale the FinLLM-based products and related AI-enabled workflows for financial services.You’ll design platforms, services and front-ends that bring models to life for advisers and banking teams, working with Node.This remote-first UK role co

Partnering with developers to promote secure coding practices.

Aveni is building real, production-ready AI systems to transform financial services across the UK.You will lead an AI software squad as the technical voice, owning direction, quality, and hands-on delivery from design to production.Join a team with strong FCA-aligned standards, mentoring responsibil