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You are a Ruby developer (2+ years of experience) with good knowledge of Ruby on Rails in a production environment and are keen to keep growing your expertise. Our platform uses technologies including Ruby and Rails and Python/React, backed by PostgreSQL, Fargate/ECS on AWS, and Cloud Run on GCP.

Ruby testing frameworks (RSpec, Minitest, Capybara) and automation tools. Proficient with code review, quality analysis, and identifying/fixing code smells, anti-patterns, and test gaps in Ruby codebases. Experience using, integrating, or tutoring others with AI/ML or LLM-powered testing/coding solu

Middle Ruby on Rails Developer. The team has a strong engineering culture and very low turnover — many developers have been with the company for years.

Tether, the founder of the first, largest, and most widely used stablecoin USD₮, is rapidly expanding into a wide range of sectors, including secure and unstoppable communication technologies, energy production, mining, and further fintech infrastructure. All of these themes share and are deeply rooted in the principles of Bitcoin, which include decentralization, resilience, openness, freedom, security, and scalability. Tether stablecoins are used to power a wide variety of enterprises, including exchanges, wallets, payment processors, and financial services, by facilitating the use of reserve-backed tokens across blockchain networks. Tether stablecoins offer a global, secure, and instant means of storing, transmitting, and receiving digital tokens at a fraction of the cost of alternative traditional financial solutions. Unwavering transparency is of paramount importance and central to Tether's foundational principles. Our dynamic team operates entirely remotely, uniting talent from every corner of the globe. Our journey has been marked by rapid growth and efficient operations, firmly establishing us as pioneers within the industry. If you possess a passion for venturing into uncharted territory and believe in your ability to conquer even the most formidable challenges, we eagerly invite you to engage with us. Join our mission, and together, let's lay the groundwork for a decentralized future that reshapes industries far beyond the realm of stablecoins. As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry. Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth. Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base. Exceptional Node/JavaScript skills Familiar with microservices architecture Have actively participated in the development of a complex platform Familiar with Peer-to-Peer technologies Good experience in interacting with databases (MySQL, MongoDB) Ability to quickly learn new technologies Good understanding of security practices Nice to have Experience with blockchain integration Comfortable with high-availability concepts Ruby, Rust or C++ skills are a plus Other technologies of interest: Message queues (Redis), Caches and Job Queues

This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. At _, innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI. What we do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe. About the Role GenAI models are improving very quickly, and one of our goals is to make them capable of addressing specialized questions and achieving complex reasoning skills. If you join the platform as an AI Tutor in Coding, you’ll have the opportunity to collaborate on these projects. Although every project is unique, you might typically: • Code generation and code review, • Prompt evaluation and complex data annotation, • Training and evaluation of large language models, • Benchmarking and agent-based code execution in sandboxed environments, • Working across multiple programming languages (Python, JavaScript/TypeScript, Rust, SQL, etc.), • Adapting guidelines for new domains and use cases, • Collaborating with project leads, solution engineers, and supply managers on complex or experimental projects Note: Flexibility and quick adaptation to new requirements are essential. How to get started Simply apply to this post, qualify, and get the chance to contribute to projects aligned with your skills, on your own schedule. From creating training prompts to refining model responses, you’ll help shape the future of AI while ensuring technology benefits everyone. • You hold a Bachelor's Degree in Software Development, Computer Science, or other related fields., • You have at least 3 years of professional experience with Ruby, including strong knowledge of object-oriented programming, metaprogramming, and idiomatic Ruby practices., • Your level of English is advanced (C1) or above., • Proficient with code review, quality analysis, and identifying/fixing code smells, anti-patterns, and test gaps in Ruby codebases., • Experience with test integration in CI/CD environments (GitHub Actions, GitLab CI, Jenkins, or CircleCI)., • Comfortable with standard version control workflows (Git) and Linux CLI tools., • Experience using, integrating, or tutoring others with AI/ML or LLM-powered testing/coding solutions in Ruby projects., • Familiarity with containerization technologies (Docker), automated deployment, and scripting within Ruby environments., • Strong skills in defect documentation, profiling, and debugging Ruby applications., • Experience generating and maintaining high-quality documentation for tests, bugs, and technical debt., • Hackathon or competitive coding experience is a plus., • You are ready to learn new methods, able to switch between tasks and topics quickly and sometimes work with challenging, complex guidelines., • Our freelance role is fully remote so, you just need a laptop, internet connection, time available and enthusiasm to take on a challenge. Why this freelance opportunity might be a great fit for you? • Get paid for your expertise, with rates that can go up to $44/hour depending on your skills, experience, and project needs., • Take part in a part-time, remote, freelance project that fits around your primary professional or academic commitments., • Work on advanced AI projects and gain valuable experience that enhances your portfolio., • Influence how future AI models understand and communicate in your field of expertise.

Senior Full Stack Ruby on Rails Developer (Remote - UK Based). I am hiring a Senior Full Stack Developer with strong Ruby on Rails experience to join a remote-first, innovation-driven tech company. Develop and maintain full-stack web applications using Ruby on Rails and TypeScript.

Figma is growing our team of passionate creatives and builders on a mission to make design accessible to all. Figma’s platform helps teams bring ideas to life—whether you're brainstorming, creating a prototype, translating designs into code, or iterating with AI. From idea to product, Figma empowers teams to streamline workflows, move faster, and work together in real time from anywhere in the world. If you're excited to shape the future of design and collaboration, join us! We’re looking for an Engineering Manager to join the Developer Tools team at Figma. This team is building solutions targeting mainly frontend and full stack developers, helping them bring products from idea to production faster than ever. As a manager on the Developer tools team you will lead teams working across , , _, and more. You’ll also be responsible for helping define the future of our developer offering, very likely helping incubate and lead new product development. Developer tools is a major initiative at Figma and is spearheaded from the London office. You’ll be working on one of the most exciting areas within Figma incorporating design thinking, the latest AI developments, and open source developer tooling. This is a full time role that can be held from our London hub or remotely in the UK. What you’ll do at Figma: • Manage and support a team of product engineers focused on building and expanding Figma’s developer offerings. Including , , _, and more., • Partner closely with cross-functional stakeholders to coordinate work across product, design, engineering, and other functions., • Define strategy & roadmap for your team and execute on that roadmap with a high degree of autonomy, velocity, and craftsmanship., • Provide hands-on technical leadership to your teams and others that collaborate with your teams to ensure a cohesive product experience and the right technical abstractions., • Recruit, mentor and retain high performing engineers (and help with other cross functional roles). You’ll foster a culture of innovation, collaboration and taking calculated risks., • Figma is committed to building an inclusive and diverse team and culture. We expect all of our leaders to play a role in helping to build and drive these initiatives through hiring, community events, and other programs in partnership with teams across all of Figma. We'd love to hear from you if you have: • 2+ years of experience managing software engineers working on products used by external users., • A proven track record of building products (both as a manager and individual contributor) that are best in class in user experience., • A relentless focus on business impact through product & engineering excellence., • Demonstrated leadership skills in building a high-performing and highly engaged engineering team; including mentoring, and growing senior engineers. While not required, it’s an added plus if you also have: • Experience building large scale systems using React, C++, and/or Ruby, • Experience building & maintaining open source software and/or libraries for developers At Figma, one of our values is Grow as you go. We believe in hiring smart, curious people who are excited to learn and develop their skills. If you’re excited about this role but your past experience doesn’t align perfectly with the points outlined in the job description, we encourage you to apply anyways. You may be just the right candidate for this or other roles. At Figma we celebrate and support our differences. We know employing a team rich in diverse thoughts, experiences, and opinions allows our employees, our product and our community to flourish. Figma is an _ - we are dedicated to equal employment opportunities regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity/expression, veteran status, or any other characteristic protected by law. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. We will work to ensure individuals with disabilities are provided reasonable accommodation to apply for a role, participate in the interview process, perform essential job functions, and receive other benefits and privileges of employment. If you require accommodation, please reach out to _. These modifications enable an individual with a disability to have an equal opportunity not only to get a job, but successfully perform their job tasks to the same extent as people without disabilities. Examples of accommodations include but are not limited to: • Holding interviews in an accessible location, • Enabling closed captioning on video conferencing, • Ensuring all written communication be compatible with screen readers, • Changing the mode or format of interviews To ensure the integrity of our hiring process and facilitate a more personal connection, we require all candidates keep their cameras on during video interviews. Additionally, if hired you will be required to attend in person onboarding. By applying for this job, the candidate acknowledges and agrees that any personal data contained in their application or supporting materials will be processed in accordance with _.

Gigged AI is an open talent marketplace specialising in the IT and technology sector. We have an opportunity live at the moment for a Full Stack Java Developer. This role is hybrid, with 3 days per week in Glasgow City Centre Office. Location: UK-based Duration: Initial 6-month contract Start Date: ASAP Day Rate: £300 IR35 Status: Outside IR35 (pending final determination) All applicant proposals will be reviewed directly on the Gigged AI platform by the hiring manager. In order to send a proposal please follow the below steps head to app.gigged.ai and create a free talent profile once signed in, follow this link to the project - https://app.gigged.ai/find-a-gig/RKvjrJyjLod you will now see a 'submit proposal' button please fill this in (intro, relevant experience, and attach CV to this) We are seeking an experienced Senior Full Stack Java Developer with 7–8+ years of hands-on experience in designing, developing, and supporting enterprise-grade web applications. The ideal candidate will possess strong expertise in Java-based technologies, modern frontend frameworks, microservices architecture, CI/CD practices, and Agile delivery methodologies. This role requires direct client interaction, technical leadership, and the ability to deliver high-quality software solutions in a fast-paced environment. Key Responsibilities • Design, develop, test, and maintain scalable enterprise web applications, • Build and support microservices-based solutions using Java and Spring technologies, • Develop RESTful APIs and web services for integration with internal and external systems, • Collaborate with business stakeholders, architects, and cross-functional teams to gather and refine requirements, • Participate in architecture discussions, code reviews, and technical design sessions, • Develop and maintain frontend applications using ReactJS and related JavaScript technologies., • Implement CI/CD pipelines and deployment automation processes., • Troubleshoot production issues and perform root cause analysis., • Ensure adherence to coding standards, security best practices, and performance optimisation techniques., • Participate in Agile/Scrum ceremonies, including sprint planning, stand-ups, retrospectives, and reviews., • Engage directly with onsite clients and stakeholders to provide technical consultation and delivery support. Required Experience & Skills Experience • Minimum 7–8 years of experience in software development and enterprise application delivery., • Proven experience developing web-based applications using:, • ReactJS, • Spring Boot, • Microservices Architecture, • REST APIs/Web Services, • Spring MVC, • JEE Technologies (Java 8+, JSF, JPA, JSP, Servlets, JDBC), • XML Technologies (DOM, SAX, XSLT), • HTML5, DHTML, JavaScript, • JBoss Application Server, • Core Technical Skills, • Java 8 or higher, • Spring Framework (Spring Boot, Spring MVC), • JUnit 4 & JUnit 5, • FreeMarker Templates, • Oracle Database, • Git, • Ruby, • Bundler, • Gradle, • Leiningen, • GoCD, • Ansible (Mandatory), • Mulesoft, • Frontend Technologies (Preferred), • JavaScript, • ReactJS, • Redux, • Node.js, • Cloud & DevOps, • Experience developing and deploying applications on AWS., • Strong knowledge of:, • Jenkins, • Maven, • CI/CD pipelines, • Build and release management processes, • Development Tools, • IntelliJ IDEA or equivalent modern IDEs., • Source control and version management best practices. Required Competencies • Strong analytical and problem-solving skills., • Excellent verbal and written communication skills., • Proven ability to work effectively in collaborative team environments., • Experience working in Agile/Scrum delivery frameworks., • Strong client-facing and stakeholder management skills., • Ability to mentor junior developers and contribute to technical leadership initiatives., • Preferred Qualifications, • Experience with FreeMarker template development., • Knowledge of application performance monitoring and profiling tools such as:, • Glowroot, • JProfiler, • Experience with performance tuning and application optimization., • Exposure to modern DevOps and automation practices

At RemoteStar, we're currently hiring for one of our clients based in Houston, TX. Years of experience: 3 to 5 years Location: USA About Client: A fast-growing US-based SaaS company is transforming how energy firms manage operations. Their end-to-end ERP platform streamlines field data, production, finance, land, and compliance, delivering real-time insights and operational efficiency. With a strong client base and innovative tech, they’re redefining digital transformation in the energy and utilities sector. You’ll design and implement AI-driven functionality that improves automation and user experience. This includes leveraging LLMs, machine learning models, and modern AI tooling within a production SaaS environment. This is a hands-on role for someone who can move quickly, make pragmatic decisions, and bring AI concepts into real, scalable product features. Responsibilities • Design and implement AI-powered features within the platform (e.g., automation, recommendations, copilots) • Integrate LLMs and/or ML models into existing services and workflows, • Evaluate, select, and optimize AI tools, APIs, and frameworks for production use, • Collaborate with Product to translate business problems into AI-driven solutions, • Build and maintain scalable backend services to support AI functionality, • Profile, test, and optimize performance of AI-integrated systems, • Ensure reliability, security, and cost-efficiency of AI components in production, • Contribute to architecture decisions around AI integration and system design, • Partner with engineering teams to embed AI into existing applications without degrading stability Requirements • 3+ years of experience as a software engineer in a SaaS or cloud-based environment, • Strong backend engineering experience (RoR and/or Golang preferred), • Experience integrating APIs and working within distributed systems, • Hands-on experience with AI/ML tools (e.g., OpenAI, Anthropic, Hugging Face, or similar), • Experience building or integrating AI-powered features into applications (not just experimentation) • Strong understanding of data flow, system design, and performance optimization, • Experience with relational databases (SQL Server or similar), • Familiarity with microservices architecture, Kubernetes, and CI/CD pipelines, • Experience deploying applications in Azure or similar cloud environments, • Strong problem-solving skills with ability to work in ambiguous, fast-moving environments, • Builder mindset—someone who can take an idea and turn it into a working feature quickly, • Pragmatic approach to AI (focus on value, not hype), • Ability to work independently in a contract environment while collaborating closely with internal teams • Strong communication skills and ability to explain AI concepts to non-technical stakeholders Preferred • Experience with prompt engineering, embeddings, or retrieval-augmented generation (RAG) • Exposure to model evaluation, fine-tuning, or AI performance monitoring, • Experience with event-driven architectures or real-time data processing, • Background in energy, fintech, or other complex data-driven industries

This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English proficiency. At _, innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI. What we do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe. About the Role GenAI models are improving very quickly, and one of our goals is to make them capable of addressing specialized questions and achieving complex reasoning skills. If you join the platform as an AI Tutor in Coding, you’ll have the opportunity to collaborate on these projects. Although every project is unique, you might typically: • Generate prompts that challenge AI., • Define comprehensive scoring criteria to evaluate the accuracy of the AI’s answers., • Correct the model’s responses based on your domain-specific knowledge. How to get started Simply apply to this post, qualify, and get the chance to contribute to projects aligned with your skills, on your own schedule. From creating training prompts to refining model responses, you’ll help shape the future of AI while ensuring technology benefits everyone. • You hold a Bachelor's or Master’s Degree in Software Development, Computer Science, or other related fields., • You have at least 3 years of professional experience with excellent command of Ruby and key ecosystem tools (RSpec, Bundler)., • Your level of English is advanced (C1) or above., • Confident use of Git and standard Linux CLI tools., • Hands-on experience with containerization (Docker) and CI/CD pipelines (e.g., GitHub Actions, GitLab CI, Jenkins)., • Deep understanding of testing principles and test-driven development (TDD); strong skills in debugging, profiling, and code optimization. Desirable: • Contributions to open-source Ruby projects (pull requests, code reviews, issue tracking)., • Experience working with large monorepositories or major open-source projects., • Experience with automated benchmarking, scripting, or infrastructure-as-code tools., • Experience working with AI-generated code or in code evaluation projects Soft Skills: • Analytical and detail-oriented mindset: proactively identifies bugs, edge cases, and test coverage gaps., • Concise and structured communication, both in documentation and asynchronous team discussions., • Strong ownership: able to drive tasks end-to-end, propose improvements, and promptly flag risks or blockers., • Adaptability and resilience: thrives in fast-changing requirements and ambiguous project contexts., • Team player: open to code reviews, feedback, and knowledge sharing, • You are ready to learn new methods, able to switch between tasks and topics quickly and sometimes work with challenging, complex guidelines. Our freelance role is fully remote so, you just need a laptop, internet connection, time available and enthusiasm to take on a challenge. Why this freelance opportunity might be a great fit for you? • Get paid for your expertise, with rates that can go up to $44/hour depending on your skills, experience, and project needs., • Take part in a part-time, remote, freelance project that fits around your primary professional or academic commitments., • Work on advanced AI projects and gain valuable experience that enhances your portfolio., • Influence how future AI models understand and communicate in your field of expertise.

Our everyday digital experiences are in the midst of a realtime revolution. Whether chatting alongside a livestreaming event, receiving realtime financial information, or working with colleagues in an online collaborative environment - consumers simply expect realtime digital experiences as standard. At Ably we’re not just witnessing this revolution, we’re powering it - at scale. At the heart of our mission lies a commitment to putting developers first. Ably provides a suite of products to build, extend, and deliver powerful digital experiences in realtime, delivering billions of messages for millions of devices every day and supporting organizations like Harness, EA, Panasonic and HubSpot. Working at Ably means helping to build the infrastructure and technology that will power and shape the future of the internet. The opportunity in front of us is immense. And we’d like your help. As the Technical Lead for Developer Experience at Ably you will co-own the DevEx vision and strategy, transforming our dashboard, documentation platform, and control plane into a world-class experience. You are a senior, hands-on engineer who’s passionate about building for developers like yourself; someone who’ll obsess over the developer journey and elevate the user experience of the Ably platform. You’ll blend deep full-stack expertise with a strong product and lead a team of five engineers where the feedback loop is immediate, because you and your team are the target users of the very ecosystem you are building. • Lead technical execution and vision. You’ll lead a team of five engineers building customer-facing web applications. You’ll partner with the DevEx PM as a unified leadership team, co-owning the delivery of a developer experience that becomes a reference point for the industry., • Drive a product-first engineering culture. You’ll foster an environment where engineers are themselves principal stakeholders of product features, and obsess over customer outcomes. You’ll challenge the "feature factory" mentality and build a team that takes true ownership of the product., • Be the technical authority. You’ll own the technical architecture and design decisions for our dashboard, docs platform, marketing website, and billing UI. You will ensure these applications effectively demonstrate Ably's realtime capabilities., • Thrive in a rapid iteration environment. You’ll operate in a high-velocity workspace where PMs, customers, and engineers co-create features. You’ll lead the team in working full-stack to iterate, improve, and ship improvements quickly., • Champion AI-assisted development. You’ll be a catalyst for AI adoption across the team. You’ll leverage LLMs and AI tools to accelerate velocity without compromising on engineering integrity., • Guide engineering outcomes and quality. You’ll set and enforce high standards for code review, testing, and production readiness. You will participate in incident response and coordinate with the Infrastructure team on platform dependencies and deployments., • Mentor and grow the team. You’ll manage performance, career development, and hiring. You will hold the team accountable for delivery commitments while providing the mentorship needed to turn engineers into product-minded leaders., • Extensive experience leading technical teams in technical B2B SaaS or API-first products, with a track record of product-minded engineering teams that take initiative and ownership of product outcomes., • A strong software engineering background with expertise in React, TypeScript, and modern JavaScript, alongside backend experience in Ruby on Rails or Node.js. You have a proven track record building and shipping customer-facing web applications at scale and you must be able to write code and build prototypes that use our APIs., • You have a natural empathy and instinct for what developer customers want because you are the target user. You are genuinely excited about building developer tools and can tap into immediate feedback loops. You understand API design, documentation, and the nuances that differentiate a great developer journey., • You act as an AI champion and are enthusiastic about using LLMs and AI tools as productivity multipliers for the team. You see AI as an enabler for higher velocity and output, not a replacement for engineering judgment., • Experience at a startup or growth-stage company or adaptability to thrive in a fast-paced, agile environment with a focus on rapid iteration. To be effective in this role you’ll need excellent communication and cross-functional collaboration skills., • Experience delivering solutions used by developers (developer tools or APIs), or closely related solutions for other technical personas (e.g. DevOps, cloud infrastructure etc.)., • An understanding of pub/sub and familiarity with distributed systems and event based architectures. We’re tackling planet-scale problems and our ambitions are a testament to that. You’ll join a successful, deeply motivated and collaborative team that thrives on innovation, experimentation and autonomy. To get a sense of life at Ably, visit our . You can also read about the origins of Ably's core values on . We believe in fostering a culture that's built on inclusivity and mutual respect among all team members, and we recognise that each individual is different and will want to be supported in their role in different ways. We provide a range of perks and benefits to aid folks' development and wellbeing, allowing them to be their best selves and do great work. • A remote-first and flexible work environment. UK-based teams come together in person once per month in our London hub (next to Old Street) and we get together as a company twice per year. Aside from that, you’re welcome to work wherever suits best for you., • Equity. We’re a growing start-up and we want all team to members to share in the success of the company through our EMI share options programme., • Enhanced holiday allowance. Our policy provides Ablyans with 28 days of paid annual leave (27 regular days, plus a day off to enjoy your birthday)., • Enhanced parental leave package, so that you can take the time you need to get to know your new family member, rest and recover., • Home workstation budget of £500 on joining (and £150 p/a thereafter), so that your home office is set up to serve you well and that you have everything you need to work comfortably., • Personal learning and development budget of £1000 annually, and 5% L&D time during working hours to focus on improving your skillset., • Private healthcare with BUPA., • Medical cash plan to cover a range medical and dental costs., • Mental wellbeing coaching and counselling from Self Space., • Monthly wellbeing budget via Juno., • Life assurance and income protection., • Access to Tech & Cycle to Work schemes., • Weekly snack allowance for our end-of-week “Need To Know” meeting., • A fully-paid one-month sabbatical after five years with Ably. We believe our differences as individuals is what makes us great. Our people are at the heart of what we do, and we encourage everyone to be their most authentic self at Ably: we see inclusivity and openness as fundamental to creating long-term success as an organization. We encourage applications from all backgrounds regardless of age, disability, gender, sexual orientation, parental status, race, religion, educational background or neurodiversity. Ably has an amazing opportunity ahead of us, and we want anyone to be able to contribute to that opportunity. If you enjoy working as part of a technology company, value open source, and love solving hard problems - then we’d love to hear from you, regardless of whether you fit the job description exactly or not. If in doubt, drop us an _; we’d be more than happy to give you some advice on your application.

Bitfinex is a digital asset trading platform offering state-of-the-art services for digital currency traders and global liquidity providers. Founded in 2012, Bitfinex was one of the first professional platforms set up to accommodate for the booming interest in cryptocurrency trading. Since then, our team has gained invaluable experience whilst cementing our spot as the go-to platform for digital asset traders and institutions. Our Mission Our aim is to create a free and accessible global digital economy by disrupting the current financial services industry. Our team is entirely remote, composed of individuals with an ownership mentality; no one waits to be told what to do. Each member of the team is a highly motivated self-starter that is comfortable with autonomy and believes in lifelong learning. When we’re not working, we’re dreaming about it. We place our egos aside and thrive within a culture that fosters one another from the birth of a concept to launch of a product. At Bitfinex you have the freedom to work as you please - all that matters is execution. Join us and help lay the foundation for a decentralized future. Currently looking for: Senior Backend Developer [Remote] Key responsibilities As a senior Backend Developer, you will be a part of the team that works on the development of the backend components of all Bitfinex Services (main trading application, Bitfinex Pay, Lightning Network support, Blockchain integrations, ….). This includes: New Products and Features - Bitfinex continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry. Scalability - all backend services that power Bitfinex platform must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth. A good example are the renown Bitfinex API, the most solid, low-latency and complete in our industry. Security - Bitfinex makes Security its most important feature. The Backend Development team is responsible for building all the API services and backend processes with the highest security principles and standard, in order to protect the safety of the entire user base. • 6+ Years of Node/JavaScript experience Familiar with microservices architecture Have actively participated in the development of a complex platform Good experience in interacting with databases (MySQL, MongoDB) Ability to quickly learn new technologies Good understanding of security practices Nice to have Experience with blockchain integration Comfortable with high-availability concepts Ruby, Rust or C++ skills are a plus Other technologies of interest: Message queues (Redis), Caches and Job Queues

Hi, we’re Bloom & Wild. Founded in 2013, our mission back then was to make sending and receiving flowers the joy that it should be, by harnessing technology, brand and letterbox delivery. Together, we’ve fulfilled over 20 million deliveries (and counting!), making us the largest direct to consumer flower business in Europe. We announced £75 million Series D funding in 2021 and that same year acquired bloomon in The Netherlands and Bergamotte in France. Now home to a family of 3 beautiful brands, we're expanding our gifting offering to other categories like cakes, candles and cocktails. This is all part of our ambition to build Europe's #1 direct to consumer gifting destination. ⚙️Technology at Bloom & WildOur Technology team sits at the heart of our business, building and maintaining the solutions that power e-commerce, production, and fulfillment. Our platform uses technologies including Ruby and Rails and Python/React, backed by PostgreSQL, Fargate/ECS on AWS, and Cloud Run on GCP. It exposes APIs that are used by our multi-brand Angular webapp and our native iOS and Android mobile apps. We’re also looking at developing new domain-driven services & microservices where applicable. Most of our team is based in the UK or The Netherlands and works in a flexible model, with choice in how often they travel to the office. Our squads meet all in person at least once per quarter to maintain connections, collaborate on larger projects, and have fun together. You can read lots more about our technology stack and our culture over on our tech blog -_ ⚒️ E-commerce Team at Bloom & WildThe E-commerce team makes up a large proportion of the nearly 60 strong Technology team, which in itself forms a large part of the overall Bloom & Wild team of over 400 people. Alongside the OpsTech, Platform, Data and IT teams, the E-commerce team focuses on delivering the best experience to our customers before, during and after their purchase. Our E-commerce teams consist of four cross functional squads, responsible for a business and architectural domain – you'll join our Subscription & Retention squad responsible for accelerating business growth and profit through delightful customer experience built on robust, scalable systems. • Delivering the Engineering roadmap for your squad., • Driving technical strategy within the team and ensuring alignment with overall business strategy., • Ensuring that non-functional requirements (e.g., performance, security) are considered and met during the product development lifecycle., • Resolving complex technical challenges and providing guidance to other team members., • Mentoring and supporting the development of other engineers within the team., • Leading projects and initiatives, ensuring successful delivery and execution., • Fostering a culture of continuous improvement within the Engineering team., • You are an experienced Ruby developer (5 years+) with detailed knowledge of Ruby on Rails in a production environment coupled with experience of front-end development using frameworks like Angular or React., • You have experience working with RESTful APIs, version control tools such as GitHub, CI tools such as Codebuild, and testing tools like RSpec/Cucumber or similar., • You have experience of distributed service architectures, including how best to test and release them, and how to ensure system stability when making changes independent of other services., • You are able to use Observability tooling to understand, diagnose, improve, debug, measure and visualise platform health., • You are up-to-date with the latest technologies including AI for example Machine Learning for personalisation or automation of processes, • You have experience of breaking down complex problems to into incremental, manageable valuable chunks, • You take a collaborative, data-driven, and experimental approach and are able to demonstrate the ability to foster this mindset in your colleagues., • You are able to get going quickly, understand complex systems and also be able to communicate with non-technical team members., • You are an experienced leader, mentor and coach; capable of supporting and elevating those around you It would be great if... • You have experience working in a fast-growing (preferably consumer-facing) startup / scaleup., • You are flexible and excited about using different languages and frameworks to solve problems, and love helping others do the same.🏡 Belonging @ Bloom & WildWe know that we learn through our differences, and building a diverse team has always been central to creating the best experience for our customers. We value all backgrounds, perspectives, ideas and experiences, and encourage everyone to share their opinions openly within our caring and inclusive team. Our champions community actively advances our culture of inclusion and belonging, which is organised around 8 pillars of diversity. These cross-business networks offer additional opportunities for connection, education, support and celebration, and ensure that inclusivity continues to be embedded in our ways of working. 🧭 Our ways of workingWe really believe in the power of connection. For us that looks different depending on the team you work in. Some of our teams work together in person every day, whereas others may connect in person every quarter. We also believe in flexibility that supports you, the work you do, and your team. How much you work from home and from our office depends on a balance of those needs, and you’ll agree this with your manager. Whether it’s through a shared project, a learning and development opportunity, or an afterwork social - we trust our teams to make the right decisions (for them and us) about where and how they work each day. We’re big on collaboration, empathy, knowledge sharing and growth, and our values drive our priorities every day: Lead change for good: we have the guts to try new things and step up to do what matters mostThink deeply, act swiftly: we make sure there’s thoughtful rationale behind our approach and always act swiftly to implement ideas Care wildly: we pour care and creativity into everything we do and pay attention to the things that make a differenceStay open, be curious: we’re open about what we’re doing and why, and we welcome challenges from each other 🌟 Work that works for youTo care wildly for our customers, firstly we care wildly for our teams. We work hard to craft a culture of thoughtfulness and care, where there is a strong sense of inclusion and belonging, enabling all of our people to thrive and be successful each day. Our perks and benefits include: ⏰ Flexible working & work from abroad 🌴 25 days holiday + your birthday + flexible bank holidays, & option to buy additional holiday each year💛 1 Volunteering day each year🐣 Enhanced family leave and a workplace nursery scheme🌱 A flexible training framework for every stage of your career 🫱‍🫲 Getting hiredWe’ll do everything we can to make sure your interview experience with us is a good one. It’s a 2-way process, and we’re keen to answer all of the questions you may have, so that you can be sure (and excited!) that we’ll be the right place for you. If your application is successful you can expect: • A chat with Leroy, our Talent Consultant for Tech - to discuss our role and learn a bit more about your skills and background and how we might match your career & development goals. - An interview with Ella, our Engineering Manager to get into more of the detail. - A chance to show us how you work through a technical challenge, which can be a live paired coding/whiteboard session. - A Final chat with Steve, from our Martin or Steve from our leadership team. We believe in leading change for good, so if there’s anything that we can do to help throughout your application process, or if you have any feedback, please share this with us anonymously here so we can use this to improve your experience. e’ll do everything we can to make sure your interview experience with us is a good one. It’s a 2-way process, and we’re keen to answer all of the questions you may have, so that you can be sure (and excited!) that we’ll be the right place for you.

? Hiring: Senior Ruby on Rails Developer (Remote - UK Based) ? Location: Anywhere in the UK (100% Remote) ?? Job Type: Full-Time | Flexible Hours | Work-Life Balance Champions ?? Why This Role Rocks: Ready to level up your dev career with a company that actually values innovation, autonomy, and continuous learning? Join a forward-thinking tech powerhouse where creativity meets cutting-edge code. You’ll be part of a passionate, remote-first team building impactful products — and yes, you’ll get Friday afternoons to work on your own passion projects. ? ?? Plus, every team member gets a free Udemy license to keep those skills sharp and curiosity thriving. ??? What You’ll Be Doing: As their next Full Stack Ruby on Rails wizard, you’ll: • Craft and maintain sleek web apps using Ruby and TypeScript, • Architect scalable, secure backend systems, • Collaborate with a cross-functional dream team to launch new features, • Tune performance for speed and scalability, • Debug like a boss and keep things running smoothly, • Manage MySQL databases with confidence, • Deploy and scale apps on AWS, • Stay ahead of the tech curve with the latest tools and trends ? What they are looking for: • Proven experience as a Full Stack Developer (or similar), • Proficiency in Ruby and TypeScript, • Solid with Ubuntu, MySQL, and AWS, • Comfortable with front-end tech (HTML, CSS, JavaScript), • A sharp eye for detail and a problem-solving mindset, • Strong communicator and self-starter in a remote setup ? Bonus Points For: • Experience with other languages/frameworks, • Familiarity with Docker, Kubernetes, CI/CD pipelines, • Agile/Scrum experience ? Perks & Benefits: • ?? Competitive salary + bonus scheme, • ??? Flexible working hours, • ?? Career growth & learning opportunities, • ?? Supportive, collaborative team culture, • ??? Access to the latest tech and tools, • ? Free Udemy license for all your learning needs, • ?? Friday afternoons = your time to innovate Note: You must be based in the UK and have full rights to work without restrictions.

🎯 Join the Tech Powerhouse Behind Next-Gen iGaming Platforms! Are you a seasoned backend engineer ready to tackle the complex world of real-time, high-frequency data exchange? Our client, a fast-growing B2B iGaming platform provider in Malta, is building the future of Sports Exchange services—and they need top engineering talent to make it happen. 💼 About the Role We’re looking for a senior backend developer (language agnostic) with deep knowledge in designing high-performance, distributed systems. You’ll work in a core product team focused on building scalable, event-driven architectures that power millions of transactions across casino, sportsbook, and exchange products. This is a strategic, high-impact role in a team responsible for one of the most technically demanding areas of the platform. 🔧 Tech Stack (You don’t need them all—expertise in any of these is welcome!) Languages: Go, Node.js, Java, Rust, Ruby on Rails Messaging & Stream Processing: gRPC, RabbitMQ, NATS Jetstream Datastores: Redis, ClickHouse, PostgreSQL, MongoDB Cloud & Infra: Docker, Kubernetes, CI/CD pipelines Architecture: Microservices, real-time APIs, event-driven systems ✅ What You’ll Do Architect and develop backend systems for real-time sports exchange services Design high-throughput, low-latency services Work with cross-functional teams to deliver reliable and scalable solutions Lead code reviews, system design discussions, and performance tuning Mentor other engineers and help define technical best practices 🎯 What We’re Looking For 5+ years of backend experience in complex, high-performance systems Proven expertise in at least one of these backend languages ; Go, Java, Node.js, Rust, RoR Experience with microservices and event-driven design Familiarity with message queues and real-time data pipelines Comfortable working in a fast-paced, agile environment Excellent problem-solving and communication skills Proficient in English 🌍 Global Talent Welcome Relocation support to Malta, visa sponsorship, and remote flexibility are offered. Join a diverse team solving real engineering challenges at scale. Your application has been successfully submitted! _