🚀 **We're Hiring: Senior Full Stack Developer (Angular, React, AWS)**

📍 Location: Spain, Poland or Portugal (Must be based in this countries to work remotely)

📅 Experience: 5+ years

🎓 Education: Bachelor's in Computer Science or IT

Join our agile development team and help build scalable, cloud-native applications using modern technologies. If you're passionate about clean code, DevOps practices, and full-stack development, we’d love to hear from you!

🔧 **Your Role**

As a Senior Full Stack Developer, you’ll:

*   Develop multi-tier applications with Angular, React, Node.js, and AWS
*   Build RESTful APIs and responsive front-end interfaces
*   Integrate automated testing and CI/CD pipelines
*   Support and enhance existing applications
*   Collaborate in a Scrum team environment

💼 **Must-Have Skills**

*   Strong experience with Angular, React, Node.js, TypeScript
*   Proficient in SQL & NoSQL databases
*   Hands-on with Git, GitHub workflows, npm, Jenkins, Openshift, Terraform
*   AWS expertise: Lambda, API Gateway, DynamoDB, Serverless architecture
*   Familiar with DDD, TDD, CI/CD
*   Agile tools: Jira, Confluence
*   CSS, pre-processors, and responsive design best practices

✨ **Nice-to-Have**

*   Experience with chatbots or GenAI models

🤝 **What We Value**

*   Strong communication and teamwork
*   Quick learning and adaptability

📩 Interested? Apply now or reach out directly to learn more!

Full Stack Engineer

Join a project focused on building a confidential, mobile-first wellness MVP designed to guide users through a structured self-improvement journey. The application will feature a daily log, private journal, and screen-length insight cards to deliver concise, actionable content. Key elements include a universal grounding button for quick access to breathing and attention tools, a light community space for user interaction, and a privacy-focused supporter view with read-only access. The app will also incorporate explainable trigger banners to enhance user understanding and engagement. The primary goal is to deliver a simple, user-friendly experience that prioritizes privacy and ease of use. This is a single project with a delivery target of 31 November 2025 and the potential for future collaboration. **Responsibilities**

*   Develop a mobile-first MVP for a wellness application, ensuring a seamless and intuitive user experience
*   Implement daily log and private journal features with secure data handling
*   Create screen-length insight cards for concise content delivery
*   Integrate a universal grounding button offering brief breathing and attention tools
*   Build a light community space for user engagement while maintaining privacy standards
*   Develop a supporter view with read-only access to user progress
*   Incorporate explainable trigger banners to provide context-sensitive insights
*   Collaborate using provided example images and feedback to refine the product
*   Ensure the application meets privacy and security best practices throughout development
*   Deliver the completed MVP by the specified deadline

**Skills And Requirements**

*   Experience developing mobile applications for iOS and/or Android platforms
*   Proficiency in relevant frameworks such as React Native, Flutter, or similar cross-platform tools
*   Strong understanding of user interface and user experience design principles
*   Ability to implement secure data storage and privacy features
*   Familiarity with integrating community or social features within apps
*   Excellent problem-solving skills and attention to detail
*   Ability to work independently and deliver high-quality results within tight deadlines
*   Strong communication skills for remote collaboration
*   Availability to start promptly and commit to the project timeline

**About Twine** Twine is a leading freelance marketplace connecting top freelancers, consultants, and contractors with companies needing creative and tech expertise. Trusted by Fortune 500 companies and innovative startups alike, Twine enables companies to scale their teams globally. **Our Mission** Twine's mission is to empower creators and businesses to thrive in an AI-driven, freelance-first world.

App Developer – Wellness MVP

We are a leading player in the fintech industry, is driving transformation in the world of finance. We are developing cutting-edge solutions that make transactions easier, safer, and more inclusive. As we expand, we're looking for ambitious individuals ready to join us on this exciting journey.

We are looking for a **React/React Native Developer** to join our global team %100 remote.

Desired Skills and Experience:

*   3+ years of experience in software development (preferably Java)
*   Experience with PostgreSQL, Oracle, MySQL, or other relational databases
*   Basic understanding of HTTP and REST
*   Good English level

We consider those as a plus:

*   Experience with Spring Boot
*   Experience with Microservice or Service-Oriented Architecture
*   Experience with data-intensive applications and performance optimization
*   Experience with Containerization, Docker, Kubernetes
*   Experience with CI/CD

Our tech stack:

*   Java 15 + Spring boot
*   REST/HTTP
*   PostgreSQL
*   AWS, Kubernetes, Docker
*   In-house message queue solution
*   Jenkins, Maven

What We Offer

*   Competitive remuneration
*   25 days of vacation
*   Bonus for employee referral
*   The opportunity to write the history of a leading and growing Fintech project
*   An environment where product expertise, professionalism, and personal commitment are rewarded
*   Flexible working hours.
*   %100 remote working

React/React Native Developer

**About Karbon**

Karbon is the global leader in practice management software for growth-minded accounting firms. We provide an award-winning, highly collaborative cloud platform that streamlines work and communication, enabling the average accounting firm using Karbon to save 18.5 hours per week, per employee.

We have customers in 34 countries and have grown into a globally distributed team, with our people based throughout the US, Australia, New Zealand, Canada, the United Kingdom, and the Philippines. We are well-funded, ranked #1 on G2, have a fantastic team culture built on our values, are growing rapidly, and making a global impact.

Karbon is seeking a Front End Software Engineer. This is an exciting time to join the team because we are expanding our organization. In this role, you will be working within an agile development team to design and build interactive web applications. They are responsible for technical specifications and developing and deploying software. This role will be focused on the Aider product within the Karbon product portfolio.

**Key Responsibilities :**

*   Balance Speed and Quality—You adeptly balance the need for speed with a commitment to quality. You know when to accelerate to meet deadlines and when to focus on detail for perfect outcomes. You have the judgment to navigate these priorities effectively, maintaining a keen eye for both efficiency and excellence.
*   Work effectively as part of a team - Software development is a team sport, where solo victories are rare. It thrives on your robust collaboration and dedication to supporting your colleagues. You will also be working closely with quality assurance team members to resolve issues raised by testing throughout the development cycle.
*   Build and maintain - Your role involves developing innovative products and ensuring the continuous operation of existing ones of the Karbon software applications. You appreciate not only the allure of new technologies but also the importance of iterative improvements on established systems. Your commitment to pioneering and preservation is crucial. You will be responsible for optimizing user experiences, study user-centric data for meaning, experiment with acquisition channels and fine-tune conversion funnels. 
*   Autonomy—You are inherently curious, finding joy in learning and exploration. Faced with challenges and direction rather than predefined solutions, you engage fully and creatively with problems.
*   Own your work—You take genuine pride in your creations, feeling a deep sense of responsibility for the products you develop and their impact on customers. This sense of ownership is paramount, and you share this commitment.
*   Bring your passion and personality—Your creativity, curiosity, and authentic self make the team stronger. If you've worked in highly political environments, you'll find our culture, free from office politics and valuing openness and authenticity, a refreshing change.

**Qualifications**

*   At least 3 years of professional experience in fullstack development.
*   Proficiency in React.js, MobX (or similar), and Ant Design (or similar) for front-end development.
*   Experience consuming, and integrating with various serverless APIs.
*   Understanding of software development best practices, including testing, continuous integration, and continuous deployment.
*   Understanding of scalable computing systems, software architecture, data structures, and algorithms
*   Experience in A/B testing, Feature Flags, and data analysis to optimize key metrics such as user acquisition and retention
*   Good analytical skills and problem solving skills 
*   Good communication and collaboration skills to work in an international, multi-location team 
*   Has initiative and passion for all things web, and a willingness to go the extra mile 
*   Ability to work as part of a team and able to take pride and ownership in their work
*   Passionate about users behavior, anticipating their needs and preferences 
*   Passionate about developing consumer facing software used globally and across industries
*   A Bachelor’s degree in Computer Science, Mathematics, Statistics, Data Science, or equivalent experience is needed

**Why work at Karbon?**

*   Gain global experience across the USA, Australia, New Zealand, UK, Canada and the Philippines
*   4 weeks annual leave plus 5 extra "Karbon Days" off a year
*   Flexible working environment
*   Work with (and learn from) an experienced, high-performing team
*   Be part of a fast-growing company that firmly believes in promoting high performers from within
*   A collaborative, team-oriented culture that embraces diversity, invests in development, and provides consistent feedback
*   Generous parental leave

Karbon embraces diversity and inclusion, aligning with our values as a business. Research has shown that women and underrepresented groups are less likely to apply to jobs unless they meet every single criteria. If you've made it this far in the job description but your past experience doesn't perfectly align, we do encourage you to still apply. You could still be the right person for the role!

We recruit and reward people based on capability and performance. We don’t discriminate based on race, gender, sexual orientation, gender identity or expression, lifestyle, age, educational background, national origin, religion, physical or cognitive ability, and other diversity dimensions that may hinder inclusion in the organization.

Generally, if you are a good person, we want to talk to you. 😛

If there are any adjustments or accommodations that we can make to assist you during the recruitment process, and your journey at Karbon, contact us at people.support@karbonhq.com for a confidential discussion.

_**At this time, we request that agency referrals are not submitted for this position. We appreciate your understanding and encourage direct applications from interested candidates. Thank you!**_

Frontend Engineer

**About Karbon**

Karbon is the global leader in practice management software for growth-minded accounting firms. We provide an award-winning, highly collaborative cloud platform that streamlines work and communication, enabling the average accounting firm using Karbon to save 18.5 hours per week, per employee.

We have customers in 34 countries and have grown into a globally distributed team, with our people based throughout the US, Australia, New Zealand, Canada, the United Kingdom, and the Philippines. We are well-funded, ranked #1 on G2, have a fantastic team culture built on our values, are growing rapidly, and making a global impact.

Karbon is seeking a **Junior to Mid-Level**, Full Stack Software Engineer. This is an exciting time to join the team because we are expanding our organization. In this role, you will be working within an agile development team to design and build interactive web applications. They are responsible for technical specifications and developing and deploying software.

**Key Responsibilities :**

*   Balance Speed and Quality—You adeptly balance the need for speed with a commitment to quality. You know when to accelerate to meet deadlines and when to focus on detail for perfect outcomes. You have the judgment to navigate these priorities effectively, maintaining a keen eye for both efficiency and excellence.
*   Work effectively as part of a team - Software development is a team sport, where solo victories are rare. It thrives on your robust collaboration and dedication to supporting your colleagues. You will also be working closely with quality assurance team members to resolve issues raised by testing throughout the development cycle.
*   Build and maintain - Your role involves developing innovative products and ensuring the continuous operation of existing ones of the Karbon software applications. You appreciate not only the allure of new technologies but also the importance of iterative improvements on established systems. Your commitment to pioneering and preservation is crucial. You will be responsible for optimizing user experiences, study user-centric data for meaning, experiment with acquisition channels and fine-tune conversion funnels. 
*   Autonomy—You are inherently curious, finding joy in learning and exploration. Faced with challenges and direction rather than predefined solutions, you engage fully and creatively with problems.
*   Own your work—You take genuine pride in your creations, feeling a deep sense of responsibility for the products you develop and their impact on customers. This sense of ownership is paramount, and you share this commitment.
*   Bring your passion and personality—Your creativity, curiosity, and authentic self make the team stronger. If you've worked in highly political environments, you'll find our culture, free from office politics and valuing openness and authenticity, a refreshing change.

**Qualifications**

*   At least 2 years experience with C#, SQL Server, .Net (MVC, Web API, .Net Core a plus) and JavaScript/TypeScript  
*   Understanding of scalable computing systems, software architecture, data structures, and algorithms
*   Experience in A/B testing and data analysis to optimize key metrics such as user acquisition and retention
*   Excellent analytical skills and problem solving skills 
*   Excellent communication and collaboration skills to work in an international, multi-location team 
*   Has initiative and passion for all things web, and a willingness to go the extra mile 
*   Ability to work as part of a team and able to take pride and ownership in their work
*   Passionate about users behavior, anticipating their needs and preferences 
*   Passionate about developing consumer facing software used globally and across industries
*   A Bachelor’s degree in Computer Science, Mathematics, Statistics, Data Science, or equivalent experience is needed

**Why work at Karbon?**

*   Gain global experience across the USA, Australia, New Zealand, UK, Canada and the Philippines
*   4 weeks annual leave plus 5 extra "Karbon Days" off a year
*   Flexible working environment
*   Work with (and learn from) an experienced, high-performing team
*   Be part of a fast-growing company that firmly believes in promoting high performers from within
*   A collaborative, team-oriented culture that embraces diversity, invests in development, and provides consistent feedback
*   Generous parental leave

Karbon embraces diversity and inclusion, aligning with our values as a business. Research has shown that women and underrepresented groups are less likely to apply to jobs unless they meet every single criteria. If you've made it this far in the job description but your past experience doesn't perfectly align, we do encourage you to still apply. You could still be the right person for the role!

We recruit and reward people based on capability and performance. We don’t discriminate based on race, gender, sexual orientation, gender identity or expression, lifestyle, age, educational background, national origin, religion, physical or cognitive ability, and other diversity dimensions that may hinder inclusion in the organization.

Generally, if you are a good person, we want to talk to you. 😛

If there are any adjustments or accommodations that we can make to assist you during the recruitment process, and your journey at Karbon, contact us at people.support@karbonhq.com for a confidential discussion.

_**At this time, we request that agency referrals are not submitted for this position. We appreciate your understanding and encourage direct applications from interested candidates. Thank you!**_

Full-stack Engineer

**ONVY HealthTech Group GmbH** is a Munich-based Digital Health company pioneering a new era of proactive and personalized health management. Our AI-powered platform integrates data from over 320 wearables and health services, providing users with actionable insights to optimize their physical and mental well-being. By translating diverse health metrics into personalized recommendations, ONVY empowers individuals to balance their lifestyle choices, enhancing recovery, performance, sleep, nutrition, and longevity. Committed to shifting from reactive sick care to proactive health optimization, ONVY ensures state-of-the-art data privacy and GDPR compliance, placing users in control of their health journey.

**Work Environment:**

*   Freelancer or Fully remote position with optional office access available in Munich
*   Join a small, agile frontend team dedicated to innovation and collaboration

**Your Values:**

*   Passionate about building products that users love
*   Take responsibility for outcomes and not just tasks
*   Disciplined working ethics in a mainly remote environment

Tasks

*   Build the native ONVY iOS SDK that reads health data from Apple HealthKit in our new Native SDK project team (greenfield project)
*   Build a React Native plugin that will be used in our React Native apps
*   Communicate with our backend team and Android native developers regarding API implementations
*   Write and maintain clear documentation for our customers and internal usage

Requirements

*   Strong proficiency in Swift and good knowledge of ObjectiveC.
*   Strong proficiency in XCode and the iOS SDK
*   Experience with Apple HealthKit
*   Proficiency with http interfaces, REST APIs
*   Experience with GitHub
*   Good understanding of CI/CD processes and mobile security best practices.

**Nice to have:**

*   Experience in bridging native to React Native (plugin development)
*   Experience with GitHub Actions
*   Previous participation in healthcare, wearable projects.

We aim for groundbreaking disruption in personal health management through the power of predictive analytics and new era health technology. If you're passionate about creating meaningful impact and want to help shape the future of proactive, data-driven well-being, we invite you to become part of our mission. Join us in building the future of health.

IOS Apple HealthKit Developer (Swift)

**Description**

You’re not looking to just keep things running — you want to build something that matters. As our **Senior Mobile Engineer**, you’ll shape the future of our mobile apps and lead the **greenfield build of our iOS app with Kotlin Multiplatform (KMP)**. You’ll turn complex challenges into intuitive, secure, and delightful experiences that help fight greenhouse gas emissions. 📱🌍✨

**Key Responsibilities 🎯**

*   Lead the development of our new iOS app with KMP, setting the technical direction and foundations.
*   Own and drive product features from ideation to deployment.
*   Ensure operational stability by troubleshooting incidents and resolving issues.
*   Communicate effectively with customers to understand their needs.
*   Actively contribute to team processes and foster a positive, collaborative work culture.

**This role is right for you if you... ✨**

*   Are driven by excellence and enjoy working autonomously while staying aligned with team goals.
*   Enjoy collaborating with customers and stakeholders, simplifying technical challenges into actionable solutions.
*   Value balancing technical and economic constraints to meet project goals.
*   Have a passion for mentoring and fostering a collaborative, high-performance work environment.
*   Appreciate direct feedback and are skilled at giving constructive input to your team.
*   Want to make a tangible, positive impact on our planet 🌍.

**Skills & experience you will need 💪**

*   Strong Android native development skills using the latest tech stack (Kotlin, Jetpack Compose, …)
*   Strong iOS experience
*   Solid understanding on different API formats and data storage technologies
*   Ability to independently drive product features from concept to production.
*   Excellent communication skills for collaborating with customers and internal stakeholders.

**Great to have ➕**

*   Experience using Kotlin Multiplatform
*   Experience working with IoT devices
*   Experience shipping mobile Apps in B2B environments
*   Skills with DevOps & CI/CD pipelines

**Benefits**

*   **Remote Working:** Work from our hubs in Hamburg or Munich, or remote from Germany
*   **Unlimited Vacation**: Take as many holidays as you need — we trust you to recharge when it matters most.
*   **Flexible Working Hours**: Work during the hours that align with your peak performance and lifestyle.
*   **Mental Health Matters**: Access 1:1 psychologist sessions and workshops through our Bloom partnership.
*   **Professional Growth**: Use a dedicated development budget to enhance your skills and career.
*   **Stock Option Plan**: Receive virtual stocks as a reward for your trust, effort, and vision alignment.
*   **Unite, Recharge, Celebrate**: Join in-person team retreats to connect and have fun.
*   **Explore Germany**: Enjoy the Deutschlandticket for flexible public transportation access.

Principal Mobile Engineer - Android/KMP (m/f/x)

Offerta di Lavoro Azienda di sviluppo software basati su intelligenza artificiale ricerca per ampliamento organico due sviluppatori di software con almeno due anni di esperienza nello sviluppo di app mobile (è necessario aver vissuto un ciclo completo di sviluppo). Viene richiesta la conoscenza di almeno uno dei seguenti framework: Kotlin, Android Studio o Jetpack Compose e uno dei seguenti framework: Flutter, React Native o MAUI. Le risorse ricercate possiedono preferibilmente un titolo di studio in ingegneria o istituto tecnico / ITS con indirizzo informatico. L'azienda offre un contratto di lavoro full time a tempo indeterminato in remoto. Possono essere richieste trasferte saltuarie presso la sede operativa di Lecce. Decorrenza contratto dall'1 dicembre 2025. L'offerta è rivolta a entrambi i sessi in ottemperanza al D.Lgs. 198/2006. Per candidarti, clicca sul pulsante “Candidati” presente nell’annuncio e allega, sulla piattaforma, un unico file in formato PDF contenente il tuo curriculum vitae. Il CV deve riportare la firma autografa o digitale, la data, una copia del documento di identità e la seguente dicitura, da inserire direttamente all’interno del curriculum: "Autorizzo il trattamento dei miei dati personali ai sensi dell’art. 13 del Regolamento (UE) 2016/679 (GDPR)." In alternativa, è possibile compilare il modulo scaricabile al link http://tinyurl.com/candidatimaglie, indicando obbligatoriamente il codice offerta 13711/2025 e inviarlo all’indirizzo email ido.maglie@arpal.regione.puglia.it. Scadenza: entro e non oltre la data indicata nell’annuncio. Info CPI Maglie: tel. 0836-1909044. #Smartworking #Lavorodaremoto Creatore annuncio ARPAL PUGLIA Qualifica ISTAT ANALISTI E PROGETTISTI DI SOFTWARE Conoscenze informatiche Conoscenza di almeno uno dei seguenti framework: Kotlin, Android Studio o Jetpack Compose e uno dei seguenti framework: Flutter, React Native o MAUI Contratto Lavoro Dipendente TI Luogo di lavoro Maglie (LE) Titolo di studio DIPLOMA UNIVERSITARIO TITOLO DI STUDIO POST-LAUREA Sintesi: Per candidarsi Per candidarti, clicca sul pulsante “Candidati” presente nell’annuncio e allega, sulla piattaforma, un unico file in formato PDF contenente il tuo curriculum vitae. Il CV deve riportare la firma autografa o digitale, la data, una copia del documento di identità e la seguente dicitura, da inserire direttamente all’interno del curriculum: "Autorizzo il trattamento dei miei dati personali ai sensi dell’art. 13 del Regolamento (UE) 2016/679 (GDPR)." In alternativa, è possibile compilare il modulo scaricabile al link http://tinyurl.com/candidatimaglie, indicando obbligatoriamente il codice offerta 13711/2025 e inviarlo all’indirizzo email ido.maglie@arpal.regione.puglia.it. Scadenza: entro e non oltre la data indicata nell’annuncio. Info CPI Maglie: tel. 0836-1909044.

SVILUPPATORI SOFTWARE

**Senior React Native Developer (Remote from Poland - only)16300-20000 PLN miesięcznie (B2B)AscendixDevelopment & Technical Leadership:**

*   Design, build, and maintain React Native mobile applications.
*   Define and implement the technical roadmap for mobile development.
*   Take full ownership of features from concept to release — including debugging, testing, and deployment.
*   Deliver production-ready apps using best practices.
*   Lead and participate in code reviews to ensure high-quality standards.
*   Stay up to date with a modern React Native approach like New Architecture (Fabric, TurboModules) and follow react-native cutting-edge practices.

**Collaboration & Communication:**

*   Work closely with the business analyst and PO to shape functionalities and align with requirements.
*   Collaborate with backend, web, QA, and UI/UX teams to deliver seamless solutions.
*   Communicate effectively with European stakeholders and an international team.
*   Support front-end web development (Vue.js) when needed (up to 50% of workload).

**Process & Quality Management:**

*   Follow, refine, and improve development processes and practices.
*   Create and maintain technical documentation.
*   Investigate system issues, run root-cause analysis, and provide solutions.
*   Implement and maintain monitoring, alerting, and quality standards (Sentry, Firebase, CI/CD).
*   Apply Agile principles and work effectively in a Scrum framework.

**Kogo poszukujemy?**

*   5+ years of commercial experience with React Native development
*   Expert-level knowledge of JavaScript and TypeScript
*   Strong experience with state management solutions (Redux-Toolkit, MobX, React-Query)
*   Hands-on experience with React.js for web development
*   Solid knowledge of Android Studio and Xcode for debugging
*   Understanding of React Native New Architecture
*   Proficiency with WebSockets and real-time communication tools
*   Experience with offline-first architecture and data synchronization techniques
*   Strong understanding of mobile app lifecycle management, including App Store/Play Store submission, versioning, and post-release monitoring
*   Advanced knowledge of monitoring and analytics tools (e.g., Sentry, Firebase) for proactive issue identification and resolution

**Nice to have:**

*   Knowledge of native iOS (Swift) or Android (Kotlin) development
*   Experience building native modules
*   Familiarity with NoSQL databases (MongoDB)
*   Exposure to Node.js for mobile-oriented APIs
*   Proficiency with CI/CD pipelines
*   Experience with alerting systems and proactive monitoring practices
*   Previous leadership or mentoring experience

**Jakie warunki i benefity otrzymasz?**

*   4500-5500 USD miesięcznie (B2B)
*   B2B - Elastyczne godziny pracy (100%)
*   Praca zdalna: W całości
*   Budżet szkoleniowy, Szkolenia wewnętrzne, Klasy językowe
*   Pakiet medyczny, Pakiet sportowy
*   Płatny "urlop" dla B2B, Płatne "chorobowe" dla B2B

**Kim jesteśmy?**

Ascendix Technologies is a US-based software and services technology company with locations in Dallas, Texas and development centers and branch offices in Poland, Portugal, and Ukraine, and distributed teams all over Europe, as we cooperate remotely since 2020. We are a community of professionals committed to delivering second-nature solutions globally to digitize, optimize, and leverage processes. We specialize in building solutions for globally-focused businesses that look to leverage cloud computing, and commercial and open-source technologies for big data, search, applications, and cross-platform mobility. We have deep experience in Salesforce.com CRM platforms, and offer products, services, and productivity modules.

Full Stack Engineer

Job Description

Apply now

Coforge

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