Jobs Fullstack

We’re looking for a full-stack developer to develop e-commerce projects for our clients. You will be responsible for implementing new projects in accordance with the provided designs and specifications, as well as supporting legacy projects. The contract will start with an initial trial project, with more projects following if this one is successful.

This is a short-term project-based position expected to last approximately 3–4 months.

Requirements:
- 3–4 years of experience as a Full-Stack Developer.
- English level: Intermediate (B1).
- You have prior experience building e-commerce and product websites.
- You have extensive experience with LLM-assisted coding tools.
- You have good experience with modern UI Node.js frameworks (TanStack preferred, but it can also be Next.js or Remix) and TypeScript.
- You have basic knowledge of AWS. 
- You have basic DevOps experience and can configure a CI/CD. pipeline or an Nginx serves. 

Responsibilities:
- Build new e-commerce projects using TypeScript/Nodejs (TanStack) Support legacy projects written in PHP.
- Make basic changes in AWS infrastructure using the AWS console or Terraform.
- Actively use LLM-assisted coding tools to speed up development, but be able to be hands-on when needed.
- Help with debugging issues on production and fixing them 
Maintaining a “template” repository used to kick-start new projects.

We are looking for a Senior Full Stack Developer with strong experience in Java and React to join an enterprise-level project in the e-government domain. The project is built around a microservices architecture and uses Google Cloud Platform (GCP) as the main cloud environment.
The ideal candidate should have solid backend expertise in Java, good frontend experience with React, and practical understanding of cloud-based, scalable systems. Experience with enterprise applications, public sector / e-government platforms, or complex distributed systems would be a strong advantage.
Technology stack: Java, React, GCP, microservices
Domain: enterprise / e-government
Priority: candidates with stronger Java/backend background preferred.

Softcery builds advanced AI systems for B2B SaaS companies. We partner with founders in the US and UK to design, build, and scale production-ready AI solutions that solve real business challenges. Our team focuses on complex AI engineering — systems that are technically robust, business-aligned, and built to scale. We combine deep technical expertise with strong product thinking, helping companies move from AI ambition to real, production impact.

We are looking for a Trainee Full-Stack Developer who is genuinely passionate about programming, loves building things, and wants to grow fast in a team that works on real AI-powered products. You will work across frontend and backend, contribute to AI integrations, and get hands-on experience with modern development practices.

What You'll Do:

• Build and maintain features across frontend and backend — stack depends on the project, and we'll help you grow into what's needed.
• Contribute to AI integrations — work with LLM APIs, help build AI-powered tools, and assist with automation workflows.
• Support marketing tasks — build landing pages, web components, and lightweight internal tools.
• Write clean, maintainable code with an eye for architecture, not just functionality.
• Learn and apply Python for AI-related tasks and internal tooling as you grow in the role.
• Work alongside experienced engineers — ship code to real products from day one.

What We're Looking For:

• Strong motivation for programming itself — you build things because you love it, not just for the job.
• Own pet projects — we want to see what you've built on your own time.
• Hands-on experience with React and Node.js — even if from pet projects.
• Vibe coding skills — you use AI tools to move fast and build smart.
• Interest in software architecture — you care about how things are built, not just that they work. Clean architecture and DDD are concepts you're drawn to.
• Openness to learning Python and new technologies — you're not afraid to pick up what the project needs.
• Familiarity with Git and basic version control workflows.
• English — Upper-Intermediate or higher.

Nice to Have:

• Experience contributing to a team project (even open source or hackathons).

What We Offer:

• Structured onboarding & mentorship — a clear onboarding plan, documented workflows, and a team that has your back.
• Flexible remote schedule — work from wherever and whenever you're most productive.
• Learning budget — we cover books, courses, English lessons, and AI tools for your professional growth.
• Full accounting support — so you can focus on the work, not the paperwork.
• Time off — 20 paid vacation days, 12 sick days, 2 paid period leave days/month (for women), and your birthday off.
• IT Cluster membership — access to professional events and networking opportunities in the local tech community.

🔁 Hiring Process: Recruiter Interview → Tech Interview → Test Task → Final Interview.

If you love coding, build things on your own, and want to grow in a team that works on real AI products — we'd love to meet you 👋

A potential invitation to potential minds!

4K-Soft is People. People are most important to us. People are at the heart of every connection we build. Come and join 4K-Soft, where human minds come together to pave the way for the future. We offer a variety of full-time jobs, training programs and internships. Only imagine, how you can help our company and start your career with 4K-Soft!

We are looking for a Junior FullStack Web Developer.

What we expect from you:

2+- years of commercial experience in Node.js + React.

We offer:

Competitive level of remuneration

Modern comfortable office or remote work

Convenient work schedule, paid vacation and sick leaves

The opportunity to grow professionally by participating in the implementation of interesting and complex projects, as well as showing personal initiative.

A potential invitation to potential minds!

4K-Soft is People. People are most important to us. People are at the heart of every connection we build. Come and join 4K-Soft, where human minds come together to pave the way for the future. We offer a variety of full-time jobs, training programs and internships. Only imagine, how you can help our company and start your career with 4K-Soft!

We are looking for a Middle FullStack Web Developer.

What we expect from you:
English level: B2 or higher
Experience: 3+ years working with Node.js and React

We offer:

Competitive level of remuneration

Convenient work schedule, paid vacation and sick leaves

The opportunity to grow professionally by participating in the implementation of interesting and complex projects, as well as showing personal initiative.

We’re expanding our engineering team and looking for developers who are comfortable building production-grade React and Node.js applications for early-stage companies in healthcare, fintech, and AI.

Although the role is primarily front-end oriented, the ability to contribute to backend services in Node.js is important.

You’ll join a team with clear processes, a modern stack, and a strong engineering culture.
 

What you will do

• Develop web applications using React and related tooling.
• Build and maintain backend services and APIs with Node.js (Nest.js or similar frameworks).
• Work with cloud environments and containerized setups using tools like Docker, Kubernetes, AWS, or GCP.
• Participate in architectural discussions, propose improvements, and help maintain technical standards.
• Implement new features from specification to production.

What we expect

• Solid knowledge of JavaScript (ES6+) and TypeScript.
• Strong practical experience with React
• Familiarity with Node.js (Nest.js or Express).
• Experience developing APIs using Node.js frameworks.
• Understanding of relational or NoSQL databases (Postgres, MongoDB, Firebase, Supabase).
• Ability to write maintainable, well-structured code and follow best practices.
• English at an Intermediate level or higher.

Additional advantages

• Experience with major cloud providers (AWS, Google Cloud).
• Experience with React Native
• Practical understanding of Docker/Kubernetes.
• Familiarity with CI/CD pipelines (GitHub Actions, GitLab CI, CircleCI).

What we offer

• Engaging projects built with a modern, well-supported tech stack.
• A review process that ensures consistent feedback and knowledge sharing.
• A culture focused on continuous learning and professional development.
• Full remote work with a team distributed across multiple countries.
• Competitive compensation in USD with periodic performance reviews.
• Flexible payment methods tailored to your location.
• Work schedule aligned with your time zone.
• English practice sessions.
• Paid sick leave and annual vacation (15 business days).
• Regular team activities online.
• Coverage of monthly psychologist support sessions.

Company
The company specializes in lead generation within the iGaming domain, primarily through SEO-driven solutions. They work on long-term client projects and are currently expanding their internal development team.

Position Overview

We are looking for a Lead / Senior Full-Stack Engineer who operates at a true senior / lead level — not by years of experience, but by depth of expertise and ownership.

This role is for someone who:

• takes full ownership of complex systems
• makes architectural decisions
• builds scalable solutions (not just features)
• sets and raises engineering standards within the team

Location & Format

• Remote
• EU time zone required
• Full-time, long-term cooperation

Language Requirements

• English — required for daily communication
• Strong English is a significant advantage

Team & Projects

You will join a stable team working on long-term lead generation platforms.

This is not a task-execution role. We expect you to:

• take ownership of complex technical decisions
• improve architecture and system performance
• raise the overall engineering bar within the team

Tech Stack

• PHP (Symfony)
• WordPress
• JavaScript
• HTML / CSS

Key Requirements

WordPress (must-have, advanced level)

• Experience building complex, large-scale WordPress systems (not content websites)
• Hands-on experience with WordPress Multisite (production)
• Strong experience with custom plugin development, including:
  • OOP
  • Composer / autoloading
  • Typed properties
• Experience with:
  • custom database structures
  • custom caching strategies (not plugin-based)
  • advanced use of WP_Query
  • improving developer & admin tooling

👉 If your experience is mostly theme customization or plugin usage — this role is not a fit.

PHP (strong senior level required)

• 5+ years with modern PHP (8+)
• Ability to design abstractions, libraries, and internal frameworks
• Experience with:
  • phpcs / phpcbf
  • custom sniffs OR PHPParser / AST
  • reflection & introspection
  • DTOs, Value Objects, clean architecture principles

Frontend / CSS

• Strong modern CSS skills (must-have)
• Understanding of browser rendering, layout, and performance

Performance & Optimization (critical)

• Deep understanding of Core Web Vitals
• Real experience with performance optimization (not just tools/plugins)
• Ability to identify bottlenecks and design custom solutions

Mindset & Approach

We are looking for engineers who:

• think analytically and architecturally
• deeply understand systems, not just tasks
• challenge “working solutions” and improve them
• proactively raise engineering standards

👉 If you mainly execute tasks and rely on predefined solutions — this role is not a fit.

AI Usage

• AI is allowed, but must not be a dependency
• Strong preference for engineers with deep system understanding
• AI-generated communication is discouraged

Start Date

• ASAP

This is not a “build everything from scratch” role.
The main focus is working with legacy systems, understanding existing architecture, supporting ongoing development, fixing issues, and gradually improving the platform together with the team.

## Requirements
* Min. 5+ years of commercial experience with C# / .NET
* Good experience with legacy enterprise applications
* Experience supporting and improving existing systems
* Solid knowledge of ASP.NET / .NET Core
* Experience with SQL databases
* Frontend experience with Angular or React
* Understanding of APIs and microservices
* Experience with cloud environments is a plus (Azure or AWS)

## Nice to have
* Experience with Docker / CI/CD
* Experience with message brokers or distributed systems
* Understanding of modernizing monolithic applications
* Experience in enterprise or long-term support projects

## Responsibilities
* Support and maintain existing applications
* Analyze and fix production and business issues
* Develop new features in existing systems
* Participate in gradual modernization and refactoring
* Collaborate with product owners, QA, and other developers
* Write clean and maintainable code
* Participate in technical discussions and code reviews

Location: Remote /Ukraine/ Europe preferred
German language — B1-B2 level
English — good working level

SBC Performance drives scalable growth for brands ready to expand globally.

Working across eCommerce, health & wellness, education, and entertainment, our team helps brands acquire customers faster and scale across 26+ global markets. We combine data-driven paid media, performance creative, and advanced analytics to turn marketing into a predictable revenue engine.

Trusted by 200+ companies, managing $150M+ in ad spend.

Scale faster. Grow smarter.

Now, we’re looking for a Full Stack Engineer to join our AdTech product team. Someone passionate about building scalable, data-driven systems that power performance marketing automation and analytics.

Key Responsibilities:

• Design, build, and maintain frontend and backend services for the internal AdTech platform.
• Develop Angular (v12+) applications with TypeScript, using reactive patterns (RxJS, Angular Material, reactive forms).
• Implement and optimize state management and change detection for high-performance UI.
• Build and maintain Node.js microservices with TypeScript and RESTful APIs.
• Work with PostgreSQL (TypeORM) and Firestore (NoSQL) for data modeling and storage.
• Implement asynchronous patterns, error handling, and background data processing.
• Integrate with Google Cloud Platform (GCP): Cloud Functions, Firestore, Cloud Storage, and Secret Manager.
• Utilize Redis caching, message queues (RabbitMQ / Pub/Sub), and efficient pagination/filtering for large datasets.
• Collaborate with product, analytics, and QA teams to deliver robust, scalable AdTech solutions.

Requirements:

• 3+ years of experience as a Full Stack Engineer
• Experience with Node.js, Angular (v12+), and TypeScript in production environments
• Strong knowledge of RxJS, Angular Material, and reactive forms
• Experience with state management and change detection optimization
• Experience with microservices architecture and RESTful APIs
• Proficiency with PostgreSQL (TypeORM) and Firestore (NoSQL)
• Understanding of asynchronous patterns and error handling
• Experience deploying and managing Cloud Functions (triggers, logs, monitoring)
• Knowledge of Firestore queries, indexing, and data modeling
• Familiarity with Cloud Storage and Secret Manager
• Docker basics for local development and testing
• Experience with message queues (RabbitMQ or Pub/Sub)
• Redis caching and session management
• Handling large datasets (pagination, filtering, sorting)

Nice to Have

• Experience with ad platform APIs (TikTok Business API, Facebook Graph API, Google Ads API)
• Working knowledge of BigQuery for analytics and data aggregation
• Experience building worker pools and parallel processing pipelines
• Familiarity with CI/CD pipelines and deployment automation
• Understanding of AdTech concepts — campaigns, budgets, pixels, conversions
• Experience with high-volume, real-time data systems

What We Offer

• Hybrid job in Prague/Warsaw or remote
• Competitive compensation
• Flexible working hours: we start our operation day between 9:00 — 11:00 CET
• All necessary equipment
• Paid vacation and sick leaves
• Educational support: reimbursement of certification, training, and a knowledge-sharing atmosphere
• Company events and multiple internal activities
• Open feedback and transparent direct communication

Privacy Notice: https://sbc-performance.com/notice-privacy-for-recruitment/

We are an Israel-based software company looking for a strong developer to join an existing enterprise CRM project in the construction safety industry.
 

The platform is already live and actively used.
We need someone who can quickly understand a large existing codebase, develop new features using AI tools, and stay with the project long-term for support and improvements.
 

Main Stack:
• PHP 8.1+
• CodeIgniter 4
• PostgreSQL
• React 18
• Vite
• nginx
 

Additional technologies:
• Firebase / FCM
• Google Cloud Storage
• Mailgun
• Socket.io
• FullCalendar
• DHTMLX Gantt
• Playwright
 

What you’ll do:
• Develop and integrate new features into an existing CRM system
• Work with backend architecture and PostgreSQL
• Improve frontend functionality in React
• Implement business logic, reports, notifications, and integrations
• Work with AI tools (ChatGPT, Cursor, Copilot, Claude, etc.) to speed up development
• Support and improve the platform long-term
 

We’re looking for someone who:
• Has strong PHP + PostgreSQL experience
• Has solid React experience
• Can work with large existing systems and legacy code
• Understands architecture and integrations
• Can work independently and take ownership
• Uses AI-assisted workflows in development

Our client is the world's largest automotive safety supplier.
N-iX team will work on a system that is used to control quality of production process as well as quality of produced items. We are looking for Senior Full Stack Developer to join our team.

Requirements:

• At least 4 years of commercial experience as Full Stack Software Developer.
• Proficient in TypeScript/JavaScript, Azure Functions.
• Backend expertise with .Net, RESTful API development, authentication, and authorization.
• Frontend development with React, Composition API, and internationalization.
• Strong debugging and optimization skills across full stack.
• Experience with Azure Functions, Azure SQL.
• Experience with data exchange with Snowflake as a plus.
• Familiarity with message queues, pub/sub patterns, and distributed systems.
• Unit and integration testing.
• Experience with Agile methodologies and tools like JIRA/Confluence.
• Good verbal and written communication skills.

• At least Upper-Intermediate level of English.

   

Responsibilities:

• Implement core backend logic, APIs, and integrations.
• Develop Azure Functions and work with Azure SQL.
• Ensure performance, reliability, and security of backend components.
• Develop and maintain frontend features using React, ensuring responsiveness and usability.
• Ensure responsive design, localization, and accessibility.
• Implement localization and accessibility best practices.
• Participate in code reviews, mentoring, and technical planning.

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

🚀 About Kilona.io

At Kilona.io, we build high-quality, high-speed web and mobile AI applications. We work with top global startups to create cutting-edge products that are fast, precise, and beautifully engineered. 

The project focuses on building and scaling mobile applications with strong backend logic, product analytics, and attribution systems. We need someone who is comfortable not only with React Native development, but also understands backend processes and mobile analytics integrations like AppsFlyer, PostHog, and Amplitude.

✅ Requirements

• 2+ years of hands-on experience with React Native (Expo OR CLI)
• Practical experience working with Node.js (Express.js)
• Experience with REST APIs and integrating databases (e.g., PostgreSQL, MongoDB, Firebase, Supabase, AWS DynamoDB, etc.)
• Good communication skills in English (B2 level or higher)
   

✨ Nice to have

• Experience with mobile app deployment (App Store, Google Play)
• Understanding of CI/CD pipelines for mobile apps
• Experience using AI-powered dev tools (e.g. ChatGPT, Cursor AI, Lovable, V0) to speed up development
   

🧑‍💻 Working Conditions

• Hourly-based payment model (overtime is always paid)
• Fully remote — work from anywhere
• Flexible schedule — we appreciate team overlap but you manage your own time
• Easy time-off policy — take days off when you need, no bureaucracy
• Work on cutting-edge AI products in a fast-paced and supportive environment

🔍 Hiring Process

1. Video intro OR Quick screening call (20 - 30 mins)
2. Technical interview (up to 1 hour)
3. Final interview (optional)
4. Offer 🎉

Interested? Let’s talk! 📨 Drop us a message — we’re always open to meeting like-minded people.

Role Overview
We are looking for a highly capable Full Stack Engineer with deep experience in Python and React who is also very comfortable with harness engineering—building the surrounding tooling, automation, testing scaffolding, execution environments, and orchestration layers that allow systems, agents, workflows, and product features to be developed, validated, and run reliably at scale.

This role is ideal for an engineer who can move fluidly between backend services, frontend product development, automation frameworks, integration layers, and developer tooling. You should be equally comfortable shipping user-facing features and building the technical harnesses that make systems testable, observable, repeatable, and production-ready.

Key Responsibilities

• Build and maintain full stack applications using Python on the backend and React on the frontend.
• Design and implement APIs, services, and orchestration layers for product workflows and internal tools.
• Develop harnesses for testing, simulation, validation, execution, and monitoring of complex workflows, agents, or integrations.
• Create reusable frameworks for:
  • workflow execution
  • automated test runs
  • sandboxed environments
  • synthetic data generation
  • scenario replay
  • regression validation
• Build developer-facing tools to improve engineering velocity, quality, and repeatability.
• Integrate external services, APIs, and third-party tools into internal platforms.
• Implement logging, tracing, observability, and error-handling across systems.
• Collaborate with product, design, and platform stakeholders to turn business needs into scalable technical solutions.
• Help define engineering standards for reliability, maintainability, and deployment readiness.

Required Qualifications

• Strong hands-on experience building production systems with Python.
• Strong hands-on experience building modern frontend applications with React.
• Experience designing and consuming REST APIs and/or async service architectures.
• Experience with harness engineering, including building tooling for testing, validation, simulation, automation, or execution environments.
• Comfortable working across both application code and engineering infrastructure/tooling.
• Strong understanding of software design, debugging, and performance optimization.
• Experience with databases such as PostgreSQL, MySQL, or similar.
• Familiarity with CI/CD pipelines, Git-based workflows, and deployment practices.
• Ability to work independently, move quickly, and make sound engineering tradeoffs.

Preferred Qualifications

• Experience with workflow orchestration, agent-based systems, or automation pipelines.
• Experience with Docker, cloud infrastructure, and containerized environments.
• Familiarity with background job systems, queues, and event-driven architectures.
• Experience building internal platforms, QA tooling, evaluation frameworks, or developer productivity tools.
• Exposure to LLM/AI workflow orchestration, RPA, or test automation systems.
• Experience with observability tools, telemetry, and production monitoring.

What Success Looks Like

• You can ship polished frontend and backend features end-to-end.
• You can build robust harnesses that make systems easier to test, measure, debug, and scale.
• You improve both product delivery and engineering leverage.
• You help the team move faster by making complex workflows repeatable and reliable.

Ideal Candidate Profile
You are not just a feature engineer. You think in systems. You naturally ask:

• How do we test this?
• How do we simulate this?
• How do we validate edge cases?
• How do we make this reproducible?
• How do we instrument this so we can trust it in production?

You enjoy building the “glue,” scaffolding, and runtime support that turn promising ideas into dependable products.

About weframe

weframe builds custom AI/tech systems for business owners who know AI matters but haven't figured out where to start. We come from inside a fast-scaling tech company where we built AI systems that drove millions in revenue and replaced entire manual workflows. We know what works, what doesn't, and what it costs when nobody asks the right questions first.

Our delivery is hands-on and outcome-driven. We don't consult - we build. You'll be joining a small team where the quality of your work is visible immediately.

The Role

You'll embed directly into client engagements and build. Not scope and hand off, you will do the building. You'll report directly to our technical co-founder and work on live projects with real clients.

This is a contractor role. We care about what you can do today, not your trajectory. If your output is strong, there will be more work.

What You'll Do

• Embed with client teams to understand their workflows, systems, and real problems - not just their stated requirements
• Scope and build AI-powered solutions tailored to each client's specific context, data, and constraints
• Work hands-on across the stack: LLM integration, prompt engineering, evaluation pipelines, APIs, and data plumbing
• Make pragmatic architectural decisions that balance speed of delivery with maintainability
• Iterate based on client feedback - shipped software is the start of the work, not the end
• Monitor and maintain deployed systems post-launch; debug issues in client environments
• Work directly with the technical co-founder on delivery decisions

What We're Looking For

• Strong software engineering fundamentals - you write code that works and that others can follow
• Highly fluent with AI-assisted development: Claude Code, Cursor, Codex, or equivalent - you use these tools to ship faster without sacrificing quality
• Comfortable with ambiguity - you can walk into a messy problem without a spec and figure out what to build
• Experienced with LLM integration and prompt engineering in production environments, not just prototypes
• Strong communicator - you can explain a technical trade-off to a non-technical client without losing them
• Proactive in client settings - you ask the right questions early and dig below surface-level requests to find the real problem
• Security-aware - you treat compliance and secure-by-design as part of delivery, not an afterthought

How to Apply

Stage 1: CV + Send us something that shows us how you work. A GitHub profile or  a project you’ve shipped, and a short description of how leverage AI) 

Stage 2 - 20 min call with co-founder: Not a technical interview. A conversation. Give them a vague, real-ish client problem and listen for whether they ask good questions or jump to solutions.

We are looking for a Senior Full-Stack Engineer with strong .NET experience to join a long-term enterprise project focused on maintaining and improving existing business systems.

This is not a “build everything from scratch” role.
The main focus is working with legacy systems, understanding existing architecture, supporting ongoing development, fixing issues, and gradually improving the platform together with the team.

## Requirements
* Min. 5+ years of commercial experience with C# / .NET
* Good experience with legacy enterprise applications
* Experience supporting and improving existing systems
* Solid knowledge of ASP.NET / .NET Core
* Experience with SQL databases
* Frontend experience with Angular or React
* Understanding of APIs and microservices
* Experience with cloud environments is a plus (Azure or AWS)

## Nice to have
* Experience with Docker / CI/CD
* Experience with message brokers or distributed systems
* Understanding of modernizing monolithic applications
* Experience in enterprise or long-term support projects

## Responsibilities
* Support and maintain existing applications
* Analyze and fix production and business issues
* Develop new features in existing systems
* Participate in gradual modernization and refactoring
* Collaborate with product owners, QA, and other developers
* Write clean and maintainable code
* Participate in technical discussions and code reviews

Location: Remote /Ukraine/ Europe preferred
German language — B1-B2 level
English — good working level