Ruby On Rails Developer At Billetto London jobs in London – Browse 9,920 openings on RoboApply Jobs

Ruby On Rails Developer At Billetto London jobs in London

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companyBilletto logo
Full-time|On-site|London

Join our vibrant and dynamic team at Billetto, where the principle of 'freedom with responsibility' drives our innovative work culture. Our tech team comprises a diverse group of passionate hackers, all dedicated to the startup ecosystem. We embrace the latest technologies and utilize tools that inspire us. If you're eager to dive into the startup world and gain hands-on experience while contributing to a fast-growing company, you've found the perfect opportunity.Your role will encompass a spectrum of backend responsibilities, including Ticketing, Reporting, and Social Event Discovery.We provide a competitive salary along with a range of benefits, all within our centrally located London office.

Nov 12, 2014
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companyBilletto logo
Full-time|On-site|London

Join a vibrant and dynamic team where the principle of 'freedom with responsibility' drives our culture. At Billetto, our tech team consists of passionate developers dedicated to leveraging the latest technologies and tools that inspire us. If you have a keen interest in the startup ecosystem and are eager to gain hands-on experience with a rapidly growing startup, you've found the right place.As an iOS Developer, you will play a crucial role in developing our iOS 'members' app, available on the App Store, as well as our specialized app for event organizers.We offer a competitive salary, comprehensive benefits, and an office located in the heart of East London.

Feb 5, 2015
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companynewrouterecruitmentlimited logo
Mid to Senior Ruby on Rails Developer

newrouterecruitmentlimited

Full-time|On-site|City

Join Our Team as a Ruby on Rails Developer!Location: London (Proximity to Liverpool Street Station)We are on the lookout for a talented Mid to Senior Ruby Developer to drive growth in our innovative property technology firm.At our company, we serve as the leading information hub for the Real Estate sector, connecting professionals with vital company insights through our advanced digital platform.We are proudly backed by esteemed angel investors from the Real Estate field and are experiencing rapid growth:Over 17,000 members and 450+ companies contributing content on a global scale, utilized by industry professionals worldwide.What We’re SeekingWe require a Ruby Developer with a strong background in the following technologies:Proficiency in Ruby on Rails and/or Sinatra, API Integration with REST, Git, RabbitMQ, Microservices Development, CI/CD, PostgreSQL, Test-Driven Development, and AWS.What We OfferWe provide a competitive compensation package, tailored to your skills and experience as a Ruby on Rails Developer:·Attractive salary·Equity in the company·Pension plan·Flexible working hours·Regular team-building activities·A fun and dynamic workplace·Shorter working hours during summer months

Oct 23, 2018
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companyblink logo
Full-time|On-site|London

As a Senior Backend Developer specializing in Ruby on Rails, you will play a pivotal role in architecting, developing, and validating server-side logic for web applications. Your expertise will be essential in crafting efficient, reusable, and robust Ruby code, while optimizing systems for peak performance and scalability. You will work collaboratively within cross-functional teams, integrating front-end components into our applications. Your responsibilities will also include conducting code reviews, mentoring junior developers, and converting business requirements into effective technical solutions.The ideal candidate will possess a Bachelor's or Master's degree in a related discipline, along with a minimum of eight years of hands-on experience in Ruby on Rails development. You should be well-versed in various software testing methodologies, demonstrate strong analytical skills, and have excellent proficiency in English.

Oct 13, 2025
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companyUpbeat Ideas UK Ltd logo
Senior Ruby Developer

Upbeat Ideas UK Ltd

Full-time|On-site|London

Join our innovative team at Upbeat Ideas UK Ltd as a Senior Ruby Developer. We are looking for an experienced developer who is passionate about building high-quality applications using Ruby on Rails. You will play a crucial role in designing, developing, and maintaining scalable web applications that enhance user experience and drive business success.The ideal candidate will have a strong background in software development, a knack for problem-solving, and the ability to work collaboratively in a dynamic environment.

Oct 2, 2019
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company5ivetechlimited logo
Contract|£550/hr - £550/hr|On-site|Central London

Senior Ruby on Rails Developer - Contract Position - £550/DayKey Challenges:Join a rapidly growing company that is becoming a household name! Our primary challenge is achieving scalability, and we are seeking experienced Senior Ruby on Rails Contractors who can engage with the entire product development process and contribute to architectural decision-making. As a contractor, mentoring junior staff and demonstrating proficient coding skills in Ruby (and Rails) with a focus on Test-Driven Development (TDD) is essential.Desired Qualifications:Proven experience in scalability and architectural decision-making as a Senior Ruby on Rails Engineer.Interest in functional programming and familiarity with Kafka is highly desirable.Experience in DevOps practices along with strong stakeholder management skills is preferred.Compensation: The rate is £550 per day for an initial period of 3 months.If you are interested, please send your CV to Sam Wellalage for a confidential discussion.

Nov 20, 2019
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company5iveTech Limited logo
Contract|On-site|Central London

Senior Ruby on Rails Developer (Contract)5iveTech Recruitment is seeking an accomplished Senior Ruby on Rails Developer to join a rapidly expanding tech company based in Central London.We are in search of a highly skilled Ruby on Rails Engineer proficient in Test-Driven Development (TDD) and Pair Programming, ready to thrive in a collaborative and innovative environment.If you are a Contract Senior Ruby on Rails Engineer who enjoys contributing to diverse projects in a solution-focused setting, we invite you to send your CV to Sam Wellalage at 5iveTech Recruitment.

Nov 20, 2019
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companyUpbeat Ideas UK Ltd logo
Full-time|On-site|London

Join our innovative team at Upbeat Ideas UK Ltd as a Senior Ruby Developer. In this role, you will leverage your extensive experience in Ruby on Rails to design and develop scalable web applications that enhance our client's digital presence. You will collaborate with cross-functional teams, ensuring high-quality code through best practices and effective testing methodologies.We are looking for a creative problem-solver who thrives in a fast-paced environment and is passionate about technology and user experience.

Nov 21, 2019
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company
Full-time|£60K/yr - £80K/yr|On-site|London, England, United Kingdom

Join our dynamic team at bbc-maestro, a leading SME with a global clientele, as a Senior Full Stack Engineer. Your primary mission will be to enhance and maintain our core platforms while collaborating with a talented group to craft scalable software that truly resonates with our users.In this role, you will actively engage in building and maintaining our Ruby on Rails platform and React Native mobile app infrastructure. You will also play a pivotal role in shaping our technical direction, mentoring your teammates, and ensuring high-quality delivery.This position is ideal for individuals who thrive in environments that encourage autonomy, love tackling real-world user challenges, and wish to have a hand in guiding technical decisions while remaining immersed in coding.You will report directly to our Engineering Manager.

Jan 30, 2026
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companyTrainline logo
Full-time|On-site|London

Join our dynamic team at Trainline as a Junior Ruby Engineer! This is an exciting opportunity for those looking to kickstart their career in software development. You will collaborate with a talented group of engineers to design, develop, and maintain innovative applications that streamline travel for millions of users.As part of our London-based team, you will be immersed in a culture of learning and growth, where your contributions will have a real impact on our products and services. We are looking for a passionate individual who thrives in a collaborative environment and is eager to learn from experienced developers.

Mar 13, 2026
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companyNew Route Recruitment Limited logo
Full-time|On-site|North London

Ruby DeveloperAbout UsAt New Route Recruitment Limited, we are dedicated to transforming the childcare landscape in London. Our mission is to provide families with easier and more affordable access to flexible and high-quality childcare solutions. With the backing of renowned investors, including prominent VCs who have supported successful companies like Wonderbly, Thread, and Appear, we are proud to have been awarded ‘Best Technology’ at the Business Women Awards in 2017 and are currently shortlisted for several prestigious awards, including Startups ‘Tech Business of the Year’.Role OverviewJoin our innovative team as we develop a marketplace that connects families with exceptional nannies. As a Ruby Developer, you will play a crucial role in designing and implementing technology that simplifies complex matching processes, ensuring that both families and nannies receive seamless solutions. Your contributions will also enhance our recruitment and training initiatives for nannies.Technical EnvironmentIn this position, you will primarily work with Ruby on the backend, utilizing frameworks and technologies such as Rails, PostgreSQL, and Redis. Our frontend development employs modern tools, including ES6 and Tachyons. You will engage with GitHub for pull requests and code reviews, ensuring that our CI/CD pipeline with CircleCI is well-maintained before deployment. Most of our deployments occur on Heroku, with some operations on AWS. We prioritize using the most suitable tools for our tasks and are open to adapting our tech stack as necessary.Product DevelopmentOur product is continuously evolving as we build impactful features that drive significant improvements. Instead of following a lengthy product roadmap, we adopt short development cycles to validate assumptions and make informed decisions quickly. We prefer using feature flags over staging environments, deploying code to production frequently to optimize value delivery. As part of our engineering team, you will collaborate closely with product and operations teams to identify and develop innovative solutions for business challenges, ensuring maximum value for our customers.Candidate ProfileWe welcome applications from Junior, Mid-Level, or Senior developers who thrive in dynamic, fast-paced engineering environments.Key Qualifications:Proven experience in web application developmentFamiliarity with relational databases and SQLA commitment to writing clean, well-structured, and thoroughly tested codeA willingness to engage in pair programming and participate in a collaborative code review culture

Oct 23, 2018
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companyEgis Group logo
Full-time|On-site|London

Join Egis Group as a Senior Rail Planner and play a pivotal role in shaping the future of rail infrastructure. In this exciting position, you will be responsible for developing and implementing strategic planning initiatives that enhance rail services and improve operational efficiency. Your expertise will contribute to high-impact projects that make a tangible difference in transportation.

Apr 13, 2026
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companyRamboll Group logo
Full-time|On-site|London

Join our dynamic team at Ramboll as a Rail Buildings Associate/Director, where you will play a pivotal role in shaping the future of rail infrastructure. This is an exceptional opportunity for seasoned professionals who are passionate about delivering high-quality projects and driving innovation in the rail sector.

Mar 25, 2026
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companySensor Tower logo
Full-time|On-site|London

Fraud Alert:At Sensor Tower, we prioritize your safety during the application process. To be considered for a position, please apply exclusively through our official website or directly through recognized platforms like LinkedIn, Indeed, BuiltIn, or Hackajob. We will never request payment or sensitive information such as credit card or bank details for job applications. All communications from us will originate from email addresses ending with sensortower.com. Interviews will be conducted via phone or Zoom, and no communication will occur through unverified email or text. If you encounter any suspicious activity, please let us know. Remember to attach your resume when applying.Recruitment Agency Notice:Sensor Tower does not accept unsolicited resumes from third-party recruitment agencies. Please refrain from sending resumes to our job alias, employees, or any other company locations. Sensor Tower will not be liable for any fees related to unsolicited resumes and will only pay agencies with a signed agreement.Role Overview:We are on the lookout for a talented Back End Engineer to join our team. You will play a crucial role in scaling our database operations and managing vast amounts of data (up to tens of terabytes). Your creativity and technical skills will be essential in deriving valuable insights and data.As a member of the Sensor Tower engineering team, you will contribute to developing top-notch products and features that enhance our user experience. In our agile and flat organizational structure, your input will directly influence the direction and execution of our projects.A Day in the Life:Interviewee: Engineering Team Lead - Sasha YelkovenkaDescribe a typical day as a Software Engineer.My role involves working extensively with large datasets, which are continuously growing. My primary responsibility is ensuring our customers can access this data swiftly and providing them with user-friendly tools for data utilization. I appreciate the culture of ownership at Sensor Tower.How do you collaborate with your remote team?We foster an excellent remote work environment, frequently collaborating via Zoom to leverage each other's expertise for improved outcomes.

Feb 11, 2026
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companyAssystem logo
Full-time|On-site|London

As a key member of our team, the Project Planner will play a crucial role in developing, maintaining, and overseeing project schedules for rail infrastructure initiatives. This position is vital in ensuring that project timelines are feasible, aligned with delivery requirements, and provide transparent visibility into progress, risks, and potential opportunities.The Planner will collaborate closely with project managers, engineers, and delivery teams to facilitate effective planning, reporting, and project control throughout the project lifecycle.Key ResponsibilitiesProgramme Development:Craft comprehensive project programmes from initial concept through to final delivery.Create baseline schedules utilizing planning software such as Primavera P6.Develop logic-linked programmes that include significant rail project milestones.Ensure that programmes meet contract stipulations and align with the project delivery strategy.Project Monitoring & Control:Track project progress against the established baseline programme.Regularly update schedules to reflect actual progress and projected completion dates.Identify delays, risks, and impacts on the critical path.Suggest mitigation strategies and recovery plans as necessary.Stakeholder Collaboration:Work hand-in-hand with Project Managers, Engineers, and Commercial Teams to ensure that programmes accurately reflect project scope and delivery constraints.Assist in coordinating design, procurement, construction, and commissioning activities.Engage in planning meetings and project reviews.Reporting:Generate regular planning reports that include:Critical path analysisProgress updatesProgramme narrativesDelay analysisDeliver clear visual reports to project teams and senior stakeholders.Rail Environment Compliance:Ensure that programmes adhere to rail industry requirements, including:PossessionsAccess planningSafety protocolsIntegration with ongoing railway operations.Key Deliverables:Integrated project programmesBaseline schedulesProgress updates and programme revisionsPlanning reports and programme narrativesCritical path analysisDelay impact assessments

Mar 11, 2026
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companyPro Contract Jobs Limited logo
Contract|£156.3K/yr - £208.3K/yr|On-site|South East London

Join Our Team as a Programme Manager!Are you an experienced Programme Manager seeking an exciting opportunity within the rail industry? We are looking for a dedicated professional to spearhead a greenfield software development project for a leading train company in South East London.With a competitive daily rate of £650 – £800, this role offers the potential for permanent employment after a 24-month contract. Your expertise will be crucial in providing strategic guidance, coordinating various workstreams, and managing stakeholder relationships across the UK.

Feb 18, 2020
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companyAECOM logo
Full-time|On-site|London

Join AECOM as the Director of Rail & Major Programmes Architecture, where you will lead innovative architectural solutions for significant transportation projects. In this crucial role, you will collaborate with multidisciplinary teams to ensure the successful delivery of high-profile rail initiatives. Your leadership will drive excellence in design, stakeholder engagement, and project execution, ensuring compliance with industry standards and regulatory requirements.

Mar 26, 2026
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companyTalan logo
Full-time|On-site|London

Talan is looking for a Python Developer to join its London office. This position centers on building and maintaining applications for a variety of client projects. The work includes both new software development and ongoing support, with a strong emphasis on delivering solutions that meet business needs. Key responsibilities Design, develop, and maintain Python-based applications Collaborate with colleagues across different teams to achieve project objectives Take part in planning and implementing technical solutions Support existing systems and address issues as they come up Role overview This role involves hands-on development as well as troubleshooting and supporting live systems. Working in a collaborative environment, the Python Developer will contribute to projects that serve a diverse group of clients.

Apr 23, 2026
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companyEgis Group logo
Full-time|On-site|London

Join our dynamic team at Egis Group as a Senior Systems Integration Engineer specializing in rail systems. In this pivotal role, you will be responsible for integrating complex systems that enhance the efficiency and safety of rail operations. Your expertise will contribute significantly to the evolution of rail transport, ensuring seamless integration of technologies within our projects.As part of a collaborative environment, you will work closely with cross-functional teams to design, implement, and optimize systems, leveraging your technical skills while also engaging in problem-solving and project management. Your contributions will be vital in delivering high-quality solutions that meet the needs of our clients.

Apr 9, 2026
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companyAECOM logo
Full-time|On-site|London

We are seeking a dynamic and driven leader to take on the role of Director for our Rail & Transit Sector. In this pivotal position, you will leverage your extensive experience in infrastructure management, business development, and project delivery to spearhead our growth initiatives. Your deep understanding of the Rail market, alongside your insight into the social, political, and economic factors influencing it, will be key to our strategic success. You will excel in leading diverse teams in a fast-paced environment, overseeing the planning, design, and execution of major projects while driving performance improvements through data analysis. Your commitment to equity, diversity, and inclusion will help foster a workplace where all talents and backgrounds are valued and celebrated.Key Responsibilities:Strategic Leadership & Market DirectionGuide strategic direction for the Rail & Transit market to align with AECOM’s objectives at both UK and global levels.Monitor and analyze market trends, policy changes, and investment opportunities to identify paths for growth.Position AECOM as the leading provider of rail and transit advisory, design, and delivery services.Client & Relationship ManagementAct as the regional leader for Rail & Transit, collaborating with global peers to ensure consistent market strategies and client satisfaction.Coordinate team formations for bids and project mobilization.Work with teams to assess Rail & Transit opportunities over various timeframes to inform strategic planning.Develop and sustain senior relationships with key clients and stakeholders.Act as an executive sponsor for critical client accounts and partnerships.Enhance strategic engagement with clients, establishing AECOM as a trusted partner.Ensure comprehensive account management plans are in place for top-tier clients.Maintain the integrity of sector data within Salesforce to ensure actionable opportunity pipelines.Business Development & Work AcquisitionEngage proactively in work acquisition, fostering relationships with key clients and industry stakeholders to build a robust pipeline.Develop the market in collaboration with regional and global transport leaders to drive growth.

Mar 17, 2026

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