Backend Engineer
Duna
At Duna, we see the company as the second product we’re building and are continually working to create a transparent, ambitious culture. We want this to be the place where you do your best work. Our mission is to redefine identity for the global economy. We’re backed by world-class investors including Index Ventures as well as founders and executives from companies like Stripe, Adyen, Notion, Remote, Qonto, Framer, Anthropic, Mollie, OpenAI, Goldman Sachs. Since your role with us will rarely fit a job description, we only wrote a crisp overview. WHAT YOU'LL BE DOING IN THIS ROLE - Design and build backend systems that are clean, testable, and efficient - Ship customer-facing features as an engineer in one of our product teams - Work closely with Deployment, go-to-market teams and our customers to bring them to life - Turn repeated setup work into product improvements - Bring care to testing, quality, and long-term maintainability - Shape our engineering practices and technical culture WHAT WE'RE LOOKING FOR - 3 to 5+ years as a backend engineer at a modern tech company - High level of ownership and care for your work, with a track record to show for it - You enjoy working with customers and can explain technical things to people who aren't engineers - You take feedback quickly and turn it into growth - Curiosity - Big ambitions - Kindness Bonus if you've worked on AI features and how to evaluate them, or on product analytics. Our current stack includes Node. js + TypeScript, Event Sourcing, Express, Postgres, RabbitMQ, Kubernetes, AWS . Experience with these is a plus, but not required.
We are more excited about how you approach problems and find solutions. A final note before you: please read through our website in detail. You'll find the fundamentals there: what we believe in, how we work, and why we're building this company. We're a remote-first, fast-moving team of builders looking for exceptional people who love to create, build, and ship. Beyond passion and grit, we highly value curiosity, authenticity and kindness. If this sounds like you, we'd love to hear from you! PS. We are looking to hire passionate people from a variety of backgrounds. So even if you don't check all the boxes, we welcome your application!
$150k - $170k
...observable, and easier to operate - Translate reputation strategy into backend systems - Partner with Trust & Safety and Core Sending to... ...YOU WILL BE A GREAT FIT IF YOU... - Have strong backend engineering experience - Have worked on email, messaging, notifications, communications...SuggestedFull timeRemote workFlexible hours- ...ONLY WROTE A CRISP OVERVIEW. WHAT YOU'LL BE DOING IN THIS ROLE - Design and build backend systems that are clean, testable, and efficient - Ship customer-facing features as an engineer in one of our product teams - Work closely with Deployment, go-to-market teams and...SuggestedFull timeRemote work
- ...What you will do Everything we ship runs on data, and the systems that collect, move and store that data need an owner. As Backend Engineer - Data & Orchestration, you take a data platform that grew fast and turn it into one system the whole company can rely on. You...SuggestedContract workImmediate startRemote workWorldwideNight shift
- ...discovery across ChatGPT, Google AI Overviews, Gemini, and Perplexia. As a Senior Full-Stack Developer with backend focus, you'll own the architecture of our Content Engine and scale the systems powering our platform. You'll work directly with the founding team in Munich...SuggestedFull time
- ...individual investors and institutional clients. The Pro team is responsible for everything to do with the trading backend services such as the matching engine, market data gateways, internal and external APIs, and various other trading services. The team is located...SuggestedFull timeLocal area
- ...As an engineer focused on backend systems at Alchemy, you'll be working with one of the most sophisticated and high-throughput distributed systems in the blockchain world. You'll focus on architecting and building new systems as well as improving existing ones for a platform...Remote jobFull timeWork at officeFlexible hours
$140k - $180k
...developers using it. We’re building our core team of software engineers to support millions of emails sent every day. We’re a small team... ...experience, with substantial experience building and operating backend services in production - Have worked with queues, asynchronous...Full timeRemote work- ...Location: We offer a Hybrid/Remote working policy. FUNCTION: Engineering We're looking for a talented Senior Software Engineer to join... ...What we need from you: ~5+ years experience as a Backend Engineer, preferably in FinTech or payments ~ Expertise in Java...Full timeRemote workWorldwideFlexible hoursShift workRotating shift
- ...millions units already sold in 200 countries. The team To sustain the company's growth, Ledger is looking for a Senior Scala Backend Engineer to join the Cloud Wallet team . This team builds and operates the backend services that power blockchain account management...Remote jobFull timeWork from homeFlexible hours
- ...Systems (USA) is a dynamic team of the best & brightest software engineering specialists and solutions innovators, from around the world.... ...qualifications: - 5+ years of development experience with backend technologies, including proficiency in multiple backend languages...Full timeWork at officeRemote workFlexible hours
- ...elevate your career. What we’re looking for ~6+ years of backend development experience using Java and/or Kotlin, with Spring... ...background jobs and batch processing using Spring Batch or a BPMN engine, including failure recovery. ~ Knowledge of migration...Local areaImmediate startShift work
- ...Role The mission of this role is to build and own the backend systems that power Morpho's consumer-facing products: reliable,... ...transaction volumes grow. Collaborate closely with frontend engineers and product to scope, ship, and iterate on end-to-end features...Remote jobFull timeShift work
- ...The Role Infrastructure is our bread and butter at Alchemy. As an engineer focused on infrastructure and backend systems at Alchemy, you'll be working with one of the most sophisticated and high-throughput distributed systems in the blockchain world. You'll focus on...Remote jobFull timeWork at officeFlexible hours
- ...society’s – you’ll feel right at home. The role As a Senior Backend Developer , you will be responsible for developing and... ...security, and scalability. You’ll work closely with the rest of the engineering team to tackle complex technical challenges and build...Remote jobFull timeWork at officeFlexible hours
- ...Platform. We are a multidisciplinary group of internal software engineers and product owners who develop and operate cybersecurity... ...AI toolchain for the automated vulnerability assessment of our backend systems. You design automated methods for identifying vulnerabilities...Full timeFlexible hours
- ...Web Crawler Engineer Location Anywhere (US-EU timezones) Job posted November 25, 2025 Type ⚙️ Engineering About us We’re a fast-growing Seed-stage startup building the next-generation web search engine designed for AI and LLM applications. We are...H1bRemote workFlexible hours
- ...Responsibilities Design, develop, and customize SAP Fiori and UI5 applications Collaborate with backend and functional teams to deliver intuitive, high-performing solutions Maintain and enhance existing applications, ensuring quality, performance, and usability...2 days per week3 days per week
- ...cross-team collaboration, both technically (mobile app, cloud backends, and the Waymo Driver) and functionally (operations, product,... ...infrastructure. In this hybrid role, you will report to an Engineering Manager. You Will Help build and evolve mission-critical...Full time
- ...institutional clients. We are currently seeking an experienced Software Engineer to join our growing Payments & Blockchain team to be focused on... ...engineering ~ Proficiency in writing clean, scalable backend code in a systems language, with preference to Rust or Node/...Remote jobFull timeLocal area
- ...experience levels, from those a few years into their career to seasoned engineers. If you are just starting your career but already have... ...talk to you. We’re looking for a Product Engineer with a strong backend specialization, a solid technical foundation, and experience...Full timeRemote workWork from homeShift work
- ...individual-contributor role calibrated against SDE 3 / Senior Engineer, driving architecture decisions, mentoring engineers, and being... ...software engineering experience, with a significant portion building backend/distributed systems; prior experience in fintech, payments, on...Full timeContract work
- ...Back End Developer / Integration Engineer Country: Spain IT STARTS HERE Santander ([ is evolving from a global, high-impact brand... ...platform. THE DIFFERENCE YOU MAKE Openbank is looking for a Backend Developer based out of Madrid or Valladolid. As a Back End...Full timeWork at officeShift work
- ...global impact, and the chance to grow fast with a world-class team, ARQ is the place to do it. What we're looking for As a Backend Engineer, you’ll design, develop, and maintain scalable, secure, and high-performing backend systems that power our innovative products...Remote jobFull timeRelocation package
- ...in Europe. The Role You're a super IC in a small, elite engineering team. You work on core banking systems and own projects end to... ...Requirements ~5+ years of hands-on software engineering experience (backend-focused). ~2+ years in early-stage or small startup...Full timeWork at officeRelocationVisa sponsorshipRelocation package
- ...[ Our Story ]( We are a global team of founders, operators and engineers, obsessed with building the best products. We work at the cutting... ...for. Our stack is TypeScript across the board - Node.js on the backend and React + React Native for the frontend You'll report into...Full timeWork at officeLocal areaImmediate startVisa sponsorshipRelocation packageDay shift
€80k - €150k per year
...algorithms that move millions with absolute precision. We’re engineers driven by performance, reliability, and meaningful innovation... ...our robust tech stack, we deliver high-performance, reliable backend and frontend apps that drive speed, precision, and insight across...Remote jobHourly payPermanent employmentFull timeLocal areaRelocation packageFlexible hours- ...brokerage accounts. Our global team is a diverse group of experienced engineers, traders, and brokerage professionals who are working to... ...production debugging. Most of your time will be spent writing Go (backend services, gRPC/REST APIs, shared client libraries), with...Full time
- ...bridge the gap between beautifully designed frontends and scalable backends. You'll tackle the big questions: How do we build systems that... ...We're looking for creative, ambitious and skilled full-stack engineers who can drive our business with technical solutions. You're...Full timeContract workImmediate startRemote workWorldwide
€20k per year
...production, working across our React/TypeScript frontend and Go backend services. Own modern interface security. Upfront is where... ...high-frequency shipping. What you bring: A strong product engineering mindset where you care about the "why" just as much as the "...Remote jobFull timeWork at officeFlexible hours- ...their greatest potential. Title and Summary Manager, Software Engineering (Java) Overview This role sits within Mastercard's Open... ...extensive experience building robust, scalable, and maintainable backend systems using SpringBoot. • Experience in architecting and...Full timeWorldwide
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