We are looking for **Poland-based candidates** for this position.

**We’re hiring multiple people – referrals are more than welcome!** 🚀

For an international client from the professional information services sector, we are looking for Senior Fullstack Software Engineers to join a team building AI/LLM solutions and a GenAI Platform (focused on creating and deploying AI agents).

📍100% remote | B2B (JDG) | direct contract with the client

Work in English

🎯 **Role**

1.  End-to-end development – from concept to production.
2.  Designing full-stack applications and AI components, co-creating architecture, working with CI/CD, and ensuring quality and security.

**Main technologies:** Python, NodeJS, React, TypeScript, JavaScript, AWS

🔎 **Who we’re looking for**

*   7+ years of commercial experience
*   **Strong backend + solid frontend experience** (**any technologies**; min. 3 years, building frontend from scratch)
*   Experience with cloud environments
*   Strong fundamentals in algorithms and data structures
*   Hands-on experience with cloud-native solutions, CI/CD, and secure coding practices
*   Ownership and independence
*   English level: B2/C1

🤖 **AI/LLM – nice to have** (RAG, AI agents, LangChain), but not required.

We’re looking for technically mature Fullstack Engineers who understand algorithms, think in terms of product, take ownership of solutions, and thrive in a dynamic, innovative environment.

F/M Senior Fullstack Engineer (LLM / GenAI) | must be Poland-based

*   **Role**: Senior Full Stack Software Engineer (Remote)
*   **Location**: Remote (Work from Anywhere)
*   **Payout**: $20 - $55/hour

**Role Overview:**

One of our clients, a global leader in the technology industry, is seeking a skilled Senior Fullstack Engineer to join their team as a contractor. This role involves tackling complex, high-impact projects, leveraging experience in both frontend and backend development to design, develop, and optimize scalable fullstack applications. As a contractor, you will have the flexibility to engage in exciting assignments as new opportunities arise.

**Key Responsibilities:**

• Design, develop, and optimize scalable fullstack applications using React and modern backend technologies

• Drive high-performance frontend development, focusing on state management and advanced UI/UX solutions

• Architect secure authentication and authorization systems

• Develop and implement APIs, focusing on scalability and performance

• Collaborate with cross-functional teams to identify and prioritize project requirements

**Required Skills & Qualifications:**

• Advanced frontend development skills using React

• Experience with performance optimization and state management

• Strong backend development skills using modern technologies

• Knowledge of database design and development

• Experience with DevOps basics, including CI/CD deployment and monitoring

**More About the Opportunity:**

This role offers the opportunity to work on innovative engineering challenges and contribute to the development of cutting-edge technology solutions. You will be part of a dynamic talent network, working with a global leader in the technology industry to drive high-impact projects forward.

**Equal Opportunity Employer:**

We hire based on skills and expertise. All qualified candidates are welcome regardless of background, experience, or prior employment history. Applications are reviewed solely on demonstrated technical ability and qualifications.

**Apply Now!**

Senior Full Stack Software Engineer (Remote)

We are seeking full stack developer with 5+ years of experience to join an exciting project: design, build and implement a comprehensive Contract Lifecycle Management ecosystem. This is a great opportunity to join the team in the early build phase.

You’ll be part of an innovative and dynamic agile product team, collaborating closely with product owners, business analysts, engineers, architects, QAs and DevOps to deliver secure, performant and reliable solutions. This technical and challenging project is fundamental to the processes of

our client and will integrate with other applications and teams as part of a wider over-arching solution.

**Core Skills**

*   Strong C# and .NET Core
*   Strong React skills
*   Dapper and SQL
*   Microservices AWS services
*   Knowledge of SOLID principles
*   Unit Testing and ideally Integration Testing
*   Event Driven Programming exposure

**Nice to Have**

*   Excellent communication skills as the team collaborate daily
*   Ability to keep up to date with the latest development technologies and practises
*   Passionate about software development with drive to continuously improve
*   Good planning and organisational skills
*   Able to focus on detailed work

**What Makes You a Great Fit**

*   Ability to assist in the technical direction of the architecture
*   Proven experience of delivering high quality solutions to complex problems that are fit for purpose, main table, robust, scalable and secure
*   Ability to keep up to date with the latest development technologies and practises
*   Passionate about software development with drive to continuously improve

Senior FullStack Engineer

**About us:**

Talent has no borders. Proxify's mission is to connect top developers around the world with the opportunities they deserve. So, it doesn't matter where you are; we are here to help you fast-track your independent career in the right direction. 🙂

Since our launch, Proxify's developers have successfully worked with 1200+ happy clients to build their products and growth features. 5000+ talented developers trust Proxify and its network to fulfill their dreams and objectives.

Proxify is shaped by a global network of supportive, talented developers interested in remote full-time jobs. Our Glassdoor (4.5/5) and Trustpilot (4.8/5) ratings reflect the trust developers place in us and our commitment to our members' success.

**The Role**

We are looking for a Senior Golang Developer (Fullstack, Backend-Heavy) to join one of our high-growth client teams as a core software architect. In this role, you will be responsible for designing and scaling high-performance, low-latency microservices using Go, while also stepping into the frontend layer to build clean, responsive user interfaces.

You will be the engineering driver behind the client’s product scaling efforts, moving beyond basic CRUD applications to solve complex data ingestion, distributed systems concurrency, and real-time state challenges. This is a role for a systems-thinking developer who loves the speed and simplicity of Go but understands how to deliver a complete, polished end-to-end user experience.

**What we are looking for:**

*   5+ years of software engineering experience, with strong, production-grade mastery of Go (Golang), its memory model, channels, and idiomatic concurrency patterns.
*   Proven track record of building microservices using HTTP frameworks (Gin, Echo, Chi) or gRPC / Protocol Buffers.
*   Solid experience with modern frontend development using TypeScript and React.js or Vue.js for consuming complex API contracts.
*   Advanced knowledge of relational databases (PostgreSQL preferred) along with high-performance query optimization and connection pooling.
*   Experience managing message brokers or event streaming platforms like Kafka, RabbitMQ, or Redis.
*   Hands-on experience containerizing services with Docker and orchestrating deployments via Kubernetes inside cloud environments (AWS, Azure, or GCP).
*   A strict testing mindset, implementing robust unit testing patterns (go test, test suites) and automated integration tests.
*   Located in CET timezone (+/- 3 hours), we are unable to consider applications from candidates in other time zones.

**Nice-to-have:**

*   Experience with Infrastructure as Code (Terraform or Bicep).
*   Understanding of eBPF, WebAssembly (Wasm), or writing low-level networking tools in Go.
*   Familiarity with frontend build tools like Vite or Webpack.
*   Background in domain-driven design (DDD) and clean architecture.

**Responsibilities:**

*   Design, implement, and maintain highly performant Go backends along with their corresponding frontend interfaces.
*   Profile and tune Go applications (using pprof, flame graphs) to ensure minimal memory footprints and ultra-low latency.
*   Design structured, self-documenting RESTful or gRPC APIs that allow seamless communication between microservices and the client interface.
*   Conduct constructive peer code reviews, championing clean code principles, SOLID patterns, and idiomatic Go architectures.
*   Work alongside DevOps engineers to build and maintain automated testing and deployment pipelines.

**What we offer:Get paid, not played**

No more unreliable clients. Enjoy on-time monthly payments with flexible withdrawal options.

**Predictable project hours**

Enjoy a harmonious work-life balance with consistent 8-hour working days with clients.

**Flex days, so you can recharge**

Enjoy up to 24 flex days off per year without losing pay, for full-time positions found through Proxify.

**Career-accelerating positions at cutting-edge companies**

Discover exclusive long-term remote positions at the world's most exciting companies

.

**Hand-picked opportunities, just for you**

Skip the typical recruitment roadblocks and biases with personally matched positions.

**One seamless process, multiple opportunities**

A one-time contracting process for endless opportunities, with no extra assessments.

**Compensation**

Enjoy the same pay, every month with positions landed through Proxify.

Senior Golang Developer (Fullstack, BE-Heavy)

**About us:**

Talent has no borders. Proxify's mission is to connect top developers around the world with opportunities they deserve. So, it doesn't matter where you are; we are here to help you fast-track your independent career in the right direction. 🙂

Since our launch, Proxify's developers have successfully worked with 1200+ happy clients to build their products and growth features. 5000+ talented developers trust Proxify and its network to fulfill their dreams and objectives.

Proxify is shaped by a global network of supportive, talented developers interested in remote full-time jobs. Our Glassdoor (4.5/5) and Trustpilot (4.8/5) ratings reflect the trust developers place in us and our commitment to our members' success.

**The Role:**

We are looking for a Senior Fullstack Developer skilled in React.js and Node.js for one of our clients. You are a perfect candidate if you are growth-oriented, you love what you do, and you enjoy working on new ideas to develop exciting products.

**What we are looking for:**

*   5+ years of experience as a Fullstack Developer.

Backend experience with:

*   Node.js
*   Microservices architecture

Database experience with:

*   SQL
*   MongoDB

*   Intermediate-advanced English
*   Located in CET timezone (+/- 3 hours), we are unable to consider applications from candidates in other time zones.

**Nice-to-have:**

*   Database Architecture knowledge.

**Responsibilities:**

*   Ability to build libraries and frameworks of reusable efficient code.
*   Competence in designing and implementing low-latency, stable and performing applications.
*   Capacity to effectively collaborate with other team members and stakeholders remotely.
*   Ability to implement data protection systems.
*   Competence in data storage solutions.

**What we offer:Get paid, not played**

No more unreliable clients. Enjoy on-time monthly payments with flexible withdrawal options.

**Predictable project hours**

Enjoy a harmonious work-life balance with consistent 8-hour working days with clients.

**Flex days, so you can recharge**

Enjoy up to 24 flex days off per year without losing pay, for full-time positions found through Proxify.

**Career-accelerating positions at cutting-edge companies**

Discover exclusive long-term remote positions at the world's most exciting companies.

**Hand-picked opportunities, just for you**

Skip the typical recruitment roadblocks and biases with personally matched positions.

**One seamless process, multiple opportunities**

A one-time contracting process for endless opportunities, with no extra assessments.

**Compensation**

Enjoy the same pay, every month with positions landed through Proxify.

Senior Fullstack Developer

Wir suchen einen Fullstack Developer mit echtem Angular-Know-how.

Du willst mehr als nur Tickets abarbeiten — und Code schreiben, auf den du stolz bist?

Das bringst du mit:

✅ 3+ Jahre produktive Erfahrung mit Angular & TypeScript

✅ Kenntnisse in Spring Boot / Kotlin und PostgreSQL

✅ Verständnis für saubere SPA-Architektur & REST API Design

✅ Erfahrung mit CI/CD und containerbasiertem Deployment

✅ Vollzeit verfügbar — kein Freelancing-Nebenprojekt

Deine Chance:

🌍 100 % Remote — mit gelegentlichen Kundenbesuchen

⚙️ Moderner Stack ohne Legacy-Ballast

🤝 Kleines, fokussiertes A-Player-Team

🕐 Flexible Arbeitszeiten

Schreib mir eine DM mit dem Stichwort "FULLSTACK" und sag mir kurz:

– Wo bist du gerade basiert?

– Bist du Vollzeit verfügbar (kein Freelancing-Business nebenbei)?

– Was sind deine bisherigen Highlights als Entwickler?

Gerne auch als Sprachnachricht.

# hiringremotework #angular #springboot #kotlin #fullstackdeveloper #softwaredevelopment #remotejobs #wearehiring

Fullstack Developer (m/w/d)

Clipster helps brands scale organic distribution through creators, with clear tracking, simple execution, and payouts tied to actual views.

After running campaigns manually, we built a platform to make the model scalable.

Since launching in early 2025, we've grown to 100,000+ creators, paid out $5M+, acquired 120+ clients, and run campaigns for names like Telegram, UFC, Universal Music Group, Elton John, Ed Sheeran, Playboi Carti, and Kendrick Lamar.

Our growth has been 100% organic.

*   Now we need someone to make sure the right people hear about what we're building.

The role

We are looking for a Backend-Heavy Senior Engineer who isn't afraid to touch the full stack. While your primary domain will be our Golang services and distributed architecture, you are a "Product Engineer" at heart — meaning you understand the "why" behind the code and can jump into the React/Next.js frontend whenever it's the shortest path to delivering value.

The mindset we hire for

*   Intensity & Grit — You run toward hard problems and stay until they are solved.
*   Ambitious Simplification — You have the intelligence to solve complex problems and the wisdom to choose the simplest solution.
*   Ownership & Mission Alignment — You don't "close tickets"; you ship outcomes. You care about the creator economy as much as we do.
*   AI Readiness — You leverage modern tools to multiply your output and keep us at the cutting edge.
*   Humility & Collaboration — You are a high-bandwidth communicator who mentors others and leaves your ego at the door.

Your technical toolkit

*   Core Backend — 5+ years of experience, with at least 3+ years of mastery in Golang. Comfortable with high-performance distributed systems.
*   Fullstack Versatility — Backend is your home, but you have the skills to navigate and contribute to a React/Next.js frontend.
*   Infrastructure & Data — Deep knowledge of PostgreSQL, Redis, and ideally GCP.
*   Architectural Mindset — You move seamlessly from system design to shipping production-ready code. Clean code, test coverage, and documentation are your tools for maintaining velocity.

Bonus points

*   Experience with payment systems (we handle around $1M in monthly payouts).
*   Event-driven architectures and real-time data processing.

Why Clipster

*   Total ownership — Join a lean tech team of fewer than 15 people. What you build today, millions will use tomorrow.
*   Remote & async — Work where you are most effective. We only ask for availability during our core hours (10am – 2pm UTC+2).
*   Zero bureaucracy — No endless meetings. We value documentation, Slack, and Loom for high-bandwidth, low-noise collaboration.

Our culture

We've always strived to build a company we enjoy working for. Here's what that means for us:

*   High-quality software. Clean code, polished features, software we're proud to ship. Everyone here cares deeply about their work.
*   Low hierarchy, high collaboration. Open communication, zero red tape, and easy access to everyone in the team. We support, mentor, and uplift each other.
*   Small team, high independence and ownership. 12 people in the tech team, so what you do matters. Lots of space to grow in responsibility and ownership.
*   Fully remote, flexible, async. Work when and where you're most effective. Our core hours are 10am - 2pm UTC+2.

Next steps

*   Discovery call — a brief chat with our recruiter.
*   Pair programming — a hands-on session with one of our engineers.
*   System design — a discussion about an architectural problem, based on our day-to-day problems.
*   Engineering excellence discussion.
*   Final meet — chat with our Founder and PM to talk mission and values.

Senior Product Engineer (Fullstack)

**¡Nueva oportunidad en Full on Net by Sword!**

Estamos buscando un/a **Tech Lead Fullstack** para incorporarse a un proyecto de desarrollo activo en entorno profesional.

Buscamos una persona con experiencia técnica sólida, visión end-to-end del desarrollo y capacidad para aportar criterio en el diseño, análisis y evolución de soluciones fullstack. La persona seleccionada participará en la definición y desarrollo de **microservicios, servicios BFF e integraciones con servicios externos**, dentro de un entorno ágil.

🔎 **¿Qué buscamos?**

Una persona con al menos **4 años de experiencia en desarrollo web fullstack**, y experiencia previa asumiendo funciones de **Tech Lead, desarrollador/a principal o referente técnico/a** dentro de equipos de desarrollo.

**Requisitos imprescindibles:**

✅ Experiencia profesional con **TypeScript**

✅ Experiencia en desarrollo back-end con **Node.js + TypeScript**

✅ Experiencia con **microservicios, servicios BFF o arquitecturas desacopladas**

✅ Mínimo **2 años de experiencia** con algún framework front-end moderno: **Vue 3** preferentemente, aunque también valoramos Vue 2.5, Angular o React

✅ Experiencia en testing unitario con **Jest**

✅ Consumo avanzado de **APIs REST**, incluyendo gestión de errores, autenticación y casos de borde

✅ Conocimiento aplicado de **patrones de diseño**, refactorización, clean code y buenas prácticas

✅ Uso fluido de **Git**, ramas, Pull Requests y code reviews

✅ Capacidad para guiar técnicamente al equipo, revisar código y aportar criterio en decisiones técnicas

⭐ **También valoraremos:**

Experiencia con arquitectura de aplicaciones y componentes, gestión de estado con Pinia/Vuex/Redux, principios SOLID, migraciones de versión en frameworks front-end, SQL, integraciones con APIs externas, CI/CD, Kubernetes, AWS y metodologías ágiles como Scrum o Kanban.

🎁 **¿Qué ofrecemos?**

✨ Jornada intensiva en julio y agosto

✨ Formación continua

✨ Clases de inglés

✨ Ayuda al teletrabajo

✨ Retribución flexible

✨ Y otros beneficios pensados para acompañarte en tu día a día

🏠 **Modalidad:** Teletrabajo, con posibilidad de presencia puntual en oficina si se requiere

🕘 **Horario:** 9:00–19:00, con 1h para comer

Si te interesa o conoces a alguien que pueda encajar, ¡nos encantará conocerte!

Tech Lead Fullstack

**Job Title:** Vue.js/Nuxt Developer **Job Type:** Contractor **Location:** Remote **Role Description** As a Vue.js / Nuxt Engineer, you will work remotely on an hourly paid basis to review AI-generated Vue/Nuxt code, frontend architectures, and technical explanations, as well as produce high-quality reference implementations and step-by-step reasoning for complex engineering problems. You will assess solutions for correctness, clarity, accessibility, security, performance, and adherence to the prompt; identify issues in Vue reactivity, component composition, state management, SSR/SSG, routing/data fetching, hydration, caching, and bundle performance; fact-check technical information; write high-quality explanations and model solutions that demonstrate best practices; and rate and compare multiple AI responses based on correctness and reasoning quality. This fully remote, hourly paid contractor role is a fast-growing AI data services company that provides AI training data to many of the world’s largest AI companies and foundation model labs—where your frontend expertise will directly help improve the world’s premier AI models used by millions of developers worldwide. Important: There is no immediate project for this role; however, if qualified, you will be among the first experts we reach out to when relevant opportunities arise. This will also provide you with access to future projects available through our expert network. **Your Profile**

*   Bachelor’s degree or higher in Computer Science, Software Engineering, or a closely related technical field (or equivalent practical experience).
*   4+ years of professional experience building production web applications with Vue.js, including at least 2+ years with Nuxt (or equivalent SSR framework experience).
*   Expert-level proficiency in modern Vue (Vue 3 preferred): Composition API, reactivity system, component patterns, lifecycle, slots, and transitions.
*   Strong Nuxt fundamentals (Nuxt 3 preferred): server routes, middleware, composables, Nitro, SSR/SSG, caching, and deployment patterns.
*   Strong understanding of web fundamentals: HTTP, browser rendering, security basics (XSS/CSRF), cookies/sessions, and OAuth flows.
*   Performance mindset: bundle optimization, code splitting, image optimization, Core Web Vitals, and profiling.
*   Experience with testing and quality: Vitest/Jest, Vue Test Utils, Playwright/Cypress, linting, CI/CD.
*   Minimum C1 English proficiency (written and spoken), with the ability to write clear technical explanations and follow detailed English-language guidelines.
*   Proven experience conducting detailed code reviews and enforcing coding standards for maintainability, correctness, and accessibility.
*   Previous experience with AI data training, annotation, or evaluating AI-generated technical content is a strong plus.
*   Highly detail-oriented and systematic, with a methodical approach to evaluating reasoning quality and identifying subtle issues in complex UI code.

**Key Responsibilities**

*   Develop AI Training Content: Create detailed prompts across Vue/Nuxt topics and write high-quality reference answers to guide AI learning.
*   Optimize AI Performance: Evaluate and rank AI responses to enhance correctness, clarity, accessibility, and performance.
*   Ensure Model Integrity: Test AI models for inaccuracies or unsafe recommendations, validating reliability across real-world use cases.

Vue.js/Nuxt Developer - Remote

We are looking for an experienced **Tech/Team Lead Node.js Developer** to spearhead the development of the innovative iGaming platform.

**_Please note that fully remote work from Poland is possible._Responsibilities**

*   Build and maintain our in-house platform while ensuring scalability and reliability
*   Design and implement integrations with third-party APIs
*   Take an active role in developing new features from scratch by contributing ideas and technical solutions
*   Operate with high-load SQL and NoSQL databases (MongoDB, MySQL)
*   Implement REST, GraphQL and WebSocket APIs
*   Write and maintain unit and integration tests following TDD principles
*   Collaborate with cross-functional teams to define, design and ship new features
*   Use GIT for version control and take part in code reviews
*   Handle message brokers such as RabbitMQ and Redis
*   Follow microservice architecture principles in system design and implementation

**Requirements**

*   Strong knowledge of JavaScript and ECMAScript 6 standards
*   3+ years of commercial experience with Node.js and Nest.js
*   5+ years of commercial experience in web development
*   Proven AI experience
*   Hands-on background in high-load SQL or NoSQL databases
*   Commercial experience implementing REST, GraphQL and WebSocket APIs
*   Solid understanding of TDD principles and proven experience writing tests
*   Understanding of microservice architecture principles
*   Practical experience with GIT version control
*   Hands-on background with RabbitMQ and Redis
*   Familiarity with MongoDB and MySQL databases

**Nice to have**

*   2+ years of practical background in CI/CD, microservices architecture or containerization
*   Hands-on familiarity with Kubernetes
*   Practical exposure to the NATS messaging system
*   Working knowledge of TypeScript

**We offer**

*   We gather like-minded people:
    *   Engineering community of industry professionals
    *   Friendly team and enjoyable working environment
    *   Flexible schedule and opportunity to work remotely within Poland
    *   Chance to work abroad for up to 60 days annually
    *   Business-driven relocation opportunities
*   We provide growth opportunities:
    *   Outstanding career roadmap
    *   Leadership development, career advising, soft skills, and well-being programs
    *   Certification (GCP, Azure, AWS)
    *   Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru
    *   English classes
*   We cover it all:
    *   Stable income (Employment Contract or B2B)
    *   Participation in the Employee Stock Purchase Plan
    *   Benefits package (health insurance, multisport, shopping vouchers)
    *   Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more
    *   Referral bonuses
    *   Corporate, social and well-being events
*   Please, note:
    *   The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview.
    *   We will reach out to selected candidates exclusively.

EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

F/M Senior Fullstack Engineer (LLM / GenAI) | must be Poland-based

Job Description

Apply now

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