Backend Developer

Há 5 dias


Porto, Porto, Portugal Recruitment Room Europe Tempo inteiro

Recruitment Room Europe provided pay rangeThis range is provided by Recruitment Room Europe. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.
Base pay range$80,000.00/yr - $120,000.00/yr
We are a decentralized finance (DeFi) project on the brink of unveiling an on-chain derivatives trading venue (DEX). We aim to bring the largest asset class in traditional finance into the blockchain ecosystem. Our products are designed to cater predominantly to professional and sophisticated retail traders in the crypto ecosystem. Our team is distributed between London (business) and Lisbon (engineering).
We seek a highly experienced and talented Full Stack Developer (Backend / Blockchain Focus) to join our team. Currently, we are focusing our search on professionals based in Lisbon, Portugal. We offer an opportunity to join a well-funded project early in its lifecycle and apply your skills and knowledge to become a major driving force behind its success.
Your ResponsibilitiesBackend/Frontend Development & Security:Develop, maintain, and optimize backend services related to the protocolEnsure data consistency, fault tolerance, scalabilityDevelop APIs for front-end consumption and third-party integrationsConduct thorough code reviews, vulnerability assessments, and penetration testsStay updated with the latest security threats and ensure our protocol remains resilient against attacksContribute to frontend development and support integrations of web3 frontends with backend and smart contractsProtocol Design & Smart Contract Development:Design, develop, test, and deploy smart contracts on EVM Blockchains (Arbitrum, Ethereum, Optimism, Base, Polygon, others)Ensure all smart contracts are optimized, gas-efficient, and adhere to the highest security standardsLiaise with external audit firms for periodic reviewsCollaboration & Leadership:Collaborate with the product and research teams to design novel DeFi products and servicesWork closely with other engineers, researchers, designers, and stakeholders to ensure smooth developmentMentor junior developers and foster a collaborative and innovative development environmentProvide clear documentation and training materials for the teamQualificationsBachelor's or Master's degree in Computer Science or a related fieldStrong experience in backend development (JavaScript/TypeScript/Node, JVM, Go, GraphQL) and infrastructureProven experience in developing smart contracts on Ethereum or other major blockchain networks, proficiency in Solidity and a deep understanding of the Ethereum Virtual Machine (EVM)Experience with frontend development (React.js, Angular.js, etc)Familiarity with centralized and decentralized oracles, layer 2 solutions, and cross-chain technologiesPassion for blockchain, decentralization, and financial innovation combined with a knowledge of DeFi platforms, token standards, and existing DeFi productsStrong attention to detail, especially in the areas of security and scalabilityExcellent communication skills, both verbal and writtenNice To HaveContributions to a major DeFi project in trading, lending, and derivatives spacesTechnical curiosity, experience with other blockchain platforms and technologiesOther contributions to open-source blockchain projectsInterview ProcessHiring Manager Interview: Interview with the Backend Lead. Discussion about experience and candidates goals.
Technical Interview: 20 Minutes technical interview/chat. (No live coding required)
Seniority levelMid-Senior level
Employment typeFull-time
Job functionEngineering and Information Technology
IndustriesBusiness Consulting and Services

#J-18808-Ljbffr


  • Backend Developer

    1 semana atrás


    Porto, Porto, Portugal Phiture Tempo inteiro

    Are you a Backend Developer?Become a Rhino and join the #crashWho Are WeWe are META, not just a company but a TEAM that will revolutionize how you see tech recruitment.Based in Évora but working remotely, we partner with national and international organizations, with offices spread across Portugal.We are a disruptive force, constantly charging towards big...

  • Backend Developer

    2 semanas atrás


    Porto, Porto, Portugal Grupo Data Tempo inteiro

    About the job Backend Developer | NodeJS or NestJSHi We are DATA Group and we are searching for the best talent Our goal is to simplify our clients' lives with innovative IT solutions. We operate at global scale and we are expanding to PortugalIf you are passionate and have the desire to make the difference, we want to get to know you Join us to be part of...


  • Porto, Porto, Portugal Grupo Data Tempo inteiro

    **About Grupo Data**We are a global IT company operating at a large scale. Our goal is to simplify our clients' lives with innovative solutions.At Grupo Data, we strive to make a difference in the industry by combining expertise and technology.We operate in Portugal and beyond, and we're currently expanding our presence in Braga.Job Summary:We're looking for...


  • Porto, Porto, Portugal Blip Tempo inteiro

    We're looking for a skilled Backend Developer to join our team at Blip. As a key member of our Software Development Team, you will be responsible for designing, developing, and deploying scalable and efficient backend systems.Key ResponsibilitiesSome of your key responsibilities will include:Designing and developing backend systems using Java and other...


  • Porto, Porto, Portugal Vwds Inc. Tempo inteiro

    About the OpportunityVwds Inc. is offering an exciting opportunity for a highly skilled Backend Developer to join our team. As a key member of our software development team, you will be responsible for helping us drive innovation across various areas, leveraging your expertise in backend development.Responsibilities:Implementing new APIs from the ground up,...


  • Porto, Porto, Portugal Landing Tempo inteiro

    Job DescriptionWe are looking for a skilled Backend Developer to lead our technology platform development. The successful candidate will have experience with Node.Js, cloud-based products, and software engineering.

  • Backend Developer Mid

    2 semanas atrás


    Porto, Porto, Portugal Körber Pharma Packaging Ag Tempo inteiro

    We are looking for a motivated Backend Developer to join our team.This role offers the opportunity to contribute to the development of a cutting-edge web application for the pharmaceutical industry while expanding your backend capabilities in a dynamic and collaborative environment.Key Responsibilities Develop and maintain a high-performance application,...


  • Porto, Porto, Portugal Grupo Data Tempo inteiro

    **About the Role**We're looking for an experienced Senior Backend Developer with expertise in TypeScript to join our team. The ideal candidate will be responsible for designing and implementing scalable, high-performance backend services and APIs using TypeScript.The successful candidate will work closely with frontend developers, product managers, and other...


  • Porto, Porto, Portugal ITDS Tempo inteiro

    **Requirements and Responsibilities:**We are seeking an experienced Senior Java Developer to join our team in Lisbon. The ideal candidate will have extensive experience in Java backend development, strong knowledge of the Spring Framework, and experience with Oracle databases and cloud platforms. Strong analytical and problem-solving skills are also...


  • Porto, Porto, Portugal Grupo Data Tempo inteiro

    About the RoleWe are looking for a talented JavaScript Developer to join our development team. The ideal candidate will be responsible for designing and implementing scalable backend services and APIs using TypeScript.The candidate will work closely with frontend developers, product managers, and other stakeholders to understand requirements and deliver...


  • Porto, Porto, Portugal Grupo Data Tempo inteiro

    About UsWe are Grupo Data, a leading IT company that simplifies our clients' lives with innovative solutions. We operate at a global scale and are expanding to new markets.We are looking for talented individuals to join our development team and contribute to our mission of innovation and excellence.The ideal candidate will be responsible for designing and...

  • Java Backend Developer

    2 semanas atrás


    Porto, Porto, Portugal Itdsportugal Todos Tempo inteiro

    This is a Porto-based hybrid opportunity – 3 days from home per week.As a Java Backend Developer, you will be working for our client in the financial sector, within their Risk department.You will contribute to a significant project to revamp a core P&L system, involving new backend processes and cutting-edge technologies.Your main responsibilities:Develop...

  • Backend Developer

    Há 4 dias


    Porto, Porto, Portugal Inetum Tempo inteiro

    We are looking for a Backend Developer to join our Inetum Team and be part of a work culture focused on innovationLocation: PortoResponsibilities:- Analyse, design, coordinate and supervise the development of web applications and APIs; - Develop technicaland design documentation; Profile:Bachelor's Degree in Information Technology or similar; +5 years of...


  • Porto, Porto, Portugal Grupo Data Tempo inteiro

    As a Senior Java Engineer at Grupo Data, you will be responsible for designing and implementing efficient backend services, collaborating with the Product Owner to gather and refine requirements, and developing unit, component, and integrated tests in collaboration with the QA team.Responsibilities:Design and implement efficient backend services using Java...


  • Porto, Porto, Portugal Sovos Compliance Tempo inteiro

    About the RoleThis role challenges the individual to adapt quickly and work effectively, sharing technical knowledge to build and deploy high-quality software that satisfies our customers.Key ResponsibilitiesThe Backend .NET Developer will:Seize opportunities to improve processes, standards, and practices.Work as a team member and with more senior developers...


  • Porto, Porto, Portugal Closer Consulting Tempo inteiro

    Closer Consulting is seeking a skilled Backend Developer Expert to join our team. As a key member of our development team, you will be responsible for designing, developing, and maintaining high-quality backend systems using Java and Spring Boot.About UsWe are a Data Science company specializing in Business Intelligence, Advanced Analytics, and Artificial...

  • Backend Developer

    Há 12 horas


    Porto, Porto, Portugal Descompagnons Trabalho Temporário Lda Tempo inteiro

    About MakerMaker is an engagement platform built to deliver rich, compelling content for commerce. We help online retailers and brands enhance existing websites with 10x richer content, increasing engagement, conversion, and revenue growth.Our PlatformWe've combined the best of design, publishing, and analytics tools in a single platform that can enhance any...

  • Junior Backend Developer

    1 semana atrás


    Porto, Porto, Portugal Maze Impact Sa. Tempo inteiro

    .Learn about knokAt knok, we dare to lead and humanize the digital transformation of healthcare.We envision a world where everyone has timely access to quality healthcare through digital technology, creating a more equal society.We genuinely believe in it and you can recognize it in every person who embraces this mission.Through a Digital Front Door...


  • Porto, Porto, Portugal Descompagnons Trabalho Temporário Lda Tempo inteiro

    Senior Backend Developer (Node.Js) - GondomarAt Maker (Permanent), in PortugalExpires at: 2025-04-13Remote policy: Full remoteJoin us to revolutionize the experience of ecommerce and help brands and retailers 10x their digital marketing content.What We Do?Maker is an engagement platform built from the ground up to help deliver the richest, most compelling...


  • Porto, Porto, Portugal Landing Tempo inteiro

    Job DescriptionWe are looking for a highly technical Senior Backend Developer to take complete ownership of Maker's technology platform development. As a key member of our team, you will be responsible for hands-on development, backend architecture, technical support, and technology strategy.