Jobs Fullstack

WHO WE ARE:

Volpis is a company of ambitious professionals providing Web & Mobile App Design and Development services for more than 9 years. Regularly listed in the Top IT Outsourcing Companies and Top Custom Software Development Companies on Clutch.co. Being a full-service company, we provide expertise in all phases of the software development life cycle. We’ve successfully covered more than 100 products all over the world. Together, we’ve created a dynamic, fun, inspiring environment where we can be ourselves and grow each day.

Required skills:

• 2+ years of commercial experience;
• Experience working with such technologies as Vue.js, React.js, Redux, Typescript and Node.js;
• Experience working with Kafka, RabbitMQ;
• Knowledge of SQL and NoSQL databases;
• Experience working with MongoDB, Mongoose, PostgreSQL, Redis;
• Experience designing and developing APIs (REST);
• Experience in any cloud services AWS/ Heroku;
• Software design skills, design patterns;
• Microservices architecture, Monolith architecture;
• Solid knowledge of git;
• Docker;
• OOP;
• Upper-intermediate English level.
   

Would be a plus:

• Experience working with 3d;
• Nest.js.
   

Responsibilities:

• Support of existing applications;
• Develop projects from scratch;
• Delivering high-quality code.
   

Your Benefits:

• 15 days paid vacation + 5 public holidays;
• 7 days 100% paid sick leaves;
• Sport and health compensation;
• Flexible working hours;
• Corporate training (internal and external);
• IT Cluster membership;
• Personal Birthday and anniversary gifts;
• Сorporate parties and team-buildings;
• Company legal and accounting support.

Job title: Lead / Senior Full-Stack Developer Type: Full-time · Remote  Industry: Cybersecurity · Artificial Intelligence 

About Cyberette 

Cyberette is an AI and cybersecurity startup building tools that protect trust in the digital world. We move fast, think in products, and ship things that matter. Every system we build sits at the intersection of security, intelligence, and real user impact. 

The role 

We are looking for a lead or senior full-stack developer with a product-oriented mindset and a bias for delivery. This is a hands-on builder role — you will own features from prototype to production, set up AI agents and automations, and help define technical standards as we scale. 

You are the kind of engineer who does not leave a function messy, an edge case unchecked, or a system half thought-through. You think in outcomes, not just tickets. And you take pride in shipping things that actually work. 

What you will do 

• Prototype, test, and ship product features with speed and confidence 
• Build and own authorization layers and Stripe payment integration 
• Set up automations, agents, and internal tooling to accelerate delivery 
• Develop robust front-end and back-end features across the full stack 
• Integrate and deploy AI models in collaboration with the AI team 
• Make pragmatic technical decisions that support fast shipping and long-term maintainability 
• Own CI/CD pipelines, containerization, and system reliability 
• Write clean, testable, well-documented code 
• Contribute to a strong engineering culture built on ownership and quality 

What we are looking for 

• 5+ years of full-stack development experience (7+ for lead level) 
• Strong Python experience, preferably with BlackSheep 
• Strong JavaScript experience, preferably with Svelte or SvelteKit 
• Solid experience building HTTP/REST APIs 
• Experience with Azure SQL Database and Microsoft Azure 
• Familiarity with CI/CD, containerization, and version control 
• Experience with Stripe integrations 
• Experience building AI-native or SaaS platform architecture 
• Hands-on experience with agentic workflows — Claude agents, OpenClaw, or building agents from scratch 
• Strong sense of ownership, self-motivation, and precision 
• Excellent written English 

What makes you stand out 

You have shipped AI-native products. You think about automation before writing anything manual. You can prototype a feature, show it off, and hand it off production-ready — all in the same sprint. 

Why Cyberette 

• Work on infrastructure that directly protects human trust online 
• Small team, real ownership, no bureaucracy 
• AI-native stack with room to shape how we build 
• Fast-moving environment where your decisions matter 

Job title: Lead / Senior Full-Stack Developer 
Type: Full-time · Remote  Industry: Cybersecurity · Artificial Intelligence 

About Cyberette 

Cyberette is an AI and cybersecurity startup building tools that protect trust in the digital world. We move fast, think in products, and ship things that matter. Every system we build sits at the intersection of security, intelligence, and real user impact. 

The role 

We are looking for a lead or senior full-stack developer with a product-oriented mindset and a bias for delivery.
 This is a hands-on builder role — you will own features from prototype to production, set up AI agents and automations, and help define technical standards as we scale. 

You are the kind of engineer who does not leave a function messy, an edge case unchecked, or a system half thought-through. You think in outcomes, not just tickets. And you take pride in shipping things that actually work. 

What you will do 

• Prototype, test, and ship product features with speed and confidence 
• Build and own authorization layers and Stripe payment integration 
• Set up automations, agents, and internal tooling to accelerate delivery 
• Develop robust front-end and back-end features across the full stack 
• Integrate and deploy AI models in collaboration with the AI team 
• Make pragmatic technical decisions that support fast shipping and long-term maintainability 
• Own CI/CD pipelines, containerization, and system reliability 
• Write clean, testable, well-documented code 
• Contribute to a strong engineering culture built on ownership and quality 

What we are looking for 

• 5+ years of full-stack development experience (7+ for lead level) 
• Strong Python experience, preferably with BlackSheep 
• Strong JavaScript experience, preferably with Svelte or SvelteKit 
• Solid experience building HTTP/REST APIs 
• Experience with Azure SQL Database and Microsoft Azure 
• Familiarity with CI/CD, containerization, and version control 
• Experience with Stripe integrations 
• Experience building AI-native or SaaS platform architecture 
• Hands-on experience with agentic workflows — Claude agents, OpenClaw, or building agents from scratch 
• Strong sense of ownership, self-motivation, and precision 
• Excellent written English 

What makes you stand out 

You have shipped AI-native products. You think about automation before writing anything manual. You can prototype a feature, show it off, and hand it off production-ready — all in the same sprint. 

Why Cyberette 

• Work on infrastructure that directly protects human trust online 
• Small team, real ownership, no bureaucracy 
• AI-native stack with room to shape how we build 
• Fast-moving environment where your decisions matter 

Full-Stack Developer

About the Role
We are looking for an experienced full-stack developer to start with a project-based engagement, with the possibility of moving into a full-time position after successful collaboration.

You will build and maintain systems that connect our AI models, data pipelines, and user interfaces. The ideal candidate is capable of working independently and delivering production-ready solutions.

A key requirement is the ability to integrate Stripe from scratch independently, including building secure payment flows and backend integration.

Key Responsibilities

• Develop and maintain front-end and back-end architecture
• Build and document APIs and integrations
• Collaborate with the AI team to integrate and deploy models
• Implement Stripe payment integration from the ground up
• Ensure system performance, stability, and scalability
• Write clean, well-structured, and testable code

Requirements

• Strong experience with Python and JavaScript
• Experience with REST APIs, Azure SQL, and Microsoft Azure
• Proven experience integrating Stripe or similar payment systems
• Understanding of CI/CD, containerization, and version control
• Ability to work independently and take ownership of tasks
• Strong attention to detail and high coding standards

AI Systems Full-Stack Engineer ASAP

Location: UK-based !!!
English: B2+
Start: ASAP
Duration: long-term
Engagement: Full/Part-time

We're looking for a Full-Stack Engineer to build scalable, intelligent data applications that combine modern web development, cloud infrastructure, and AI capabilities.

Tech Stack:

• Backend: R (Shiny, Golem, R6), Plumber
• Frontend: Bootstrap 5, HTML5, CSS3, JavaScript
• Data: MariaDB (AWS RDS), S3, SQL
• DevOps: GitHub Actions, Docker, Heroku / DigitalOcean
• AI/ML: LLM APIs (OpenAI, Claude), ellmer (R), Python

What You'll Do:
- Design and develop modular, production-grade applications with interactive dashboards and responsive user interfaces.
- Structure scalable backend systems, implement clean architecture patterns, and ensure maintainability of complex applications.
- Create polished, responsive UI using modern frameworks (Bootstrap, HTML/CSS, JavaScript), going beyond default templates.
- Connect applications to databases and storage systems, optimize queries, and design efficient data pipelines.
- Implement LLM-powered features such as chat interfaces, data assistants, and automated workflows.
- Manage CI/CD pipelines and deploy applications in cloud environments (Heroku, Docker, or similar platforms).
- Maintain clean code practices, documentation, testing, and performance optimization.

Must-have:
* Strong full-stack development experience
* Solid backend architecture skills (modular design, state management)
* Experience with modern frontend development (responsive UI, component-based approach)
* Advanced SQL and database design knowledge
* Experience with CI/CD pipelines (e.g., GitHub Actions)
* Cloud deployment experience (Heroku, Docker, or similar)
* Hands-on experience integrating LLMs / AI features into applications

Nice-to-have:
* Experience with data-heavy or analytics platforms
* Knowledge of AI systems (RAG, agents, workflow automation)
* Familiarity with AWS ecosystem (S3, RDS, IAM)
* Python for AI/ML workflows
* Understanding of web security best practices

About the company
Adaptiq is a technology hub that builds and scales R&D teams for fast-growing product companies. We work with ambitious startups and established businesses, helping them deliver high-quality products and grow efficiently.
 

About the product
You’ll be working on an AI-powered development platform that enables non-technical stakeholders (PMs, designers, executives) to generate and ship production-ready features without writing code.

The platform integrates with large existing codebases, automatically applies design system standards, and generates clean pull requests ready for review. It tackles complex challenges like repository analysis, continuous AI model updates, and automated validation — allowing teams to move faster without sacrificing quality.
 

About the role
We’re looking for a Senior Full Stack Developer to take ownership of building an AI-driven toolkit for software teams.

You’ll work across the entire stack — designing scalable backend services on AWS, building modern React interfaces, and developing tools (including IDE plugins) that embed AI directly into the development workflow.

This is a high-impact role with strong ownership, where you’ll influence architecture decisions and collaborate closely with AI engineers and product teams.
 

Your responsibilities

• Design and build scalable backend services on AWS (Terraform or Pulumi)
• Optimize cloud infrastructure for performance, reliability, and cost
• Develop and maintain React + TypeScript applications and component libraries
• Build developer tools and IDE plugins with AI integrations
• Work with large codebases: analysis, parsing, and optimization
• Integrate AI models into development pipelines
• Set up and maintain CI/CD pipelines and testing frameworks
• Troubleshoot production issues and support releases
• Collaborate with engineers, AI specialists, and product teams
   

Requirements

• 7+ years of full-stack development experience
• Strong frontend expertise with React and TypeScript
• Solid backend experience with AWS and cloud architecture
• Hands-on experience with Terraform or Pulumi
• Strong SQL skills and experience with relational databases
• Experience with CI/CD pipelines and automated testing
• Deep understanding of JavaScript and frontend architecture
• Experience with AI-powered dev tools (e.g., Claude, Cursor, etc.)
• Upper-Intermediate+ English
   

Nice to have

• Python experience (backend or AI integrations)
• Experience in startups or fast-paced product environments
   

We offer

• 20 working days of paid vacation + public holidays
• Full accounting and legal support
• Fully remote setup + co-working option if needed
• Competitive compensation with регуляр reviews

Fluent Trade Technologies is the fastest ‘end-to-end’ data & trading technology provider in the FX, FI and Futures markets.

Fluent is a market leader with a significant tier 1 & 2 client base in the financial world

Please visit us at www.fluenttech.net

Fluent is inviting a Full-Stack Developer to join our high-skilled engineers. Our team will be happy to onboard you and share all the relevant knowledge for your successful work. Join the Fluent Family and enjoy working together with us!

The position is fully remote.

What you will do:

• Lead a project in our application team, creating high-end automatic financial trading systems.
• Work directly with a customer.
• Be involved in requirements and devops. 

What you will need:

• At least 4 years of of development experience: 
• Fullstack + Microsoft : C# / .NET / .Net Core / MVC / Angular / HTML5 / Web Sockets 
• Experience in Multithreading, system architecture, LINQ
• Experience with SQL DB (MySQL) - Stored procedures, performance & tuning
• Experience in the full development lifecycle, from design to QA
• Good English

As Advantage:

• Experience in the financial industry 
• Experience with Solace messaging bus
• Experience with Linux, Mono
• Relevant academic background

We are looking for a Full-Stack Engineer to join our team and help build scalable systems and modern web applications that process and visualize large volumes of data.

In this role, you’ll work across both backend and frontend, collaborating closely with engineers and product teams to design performant APIs, data processing systems, and intuitive user interfaces.

This position is ideal for engineers who enjoy working with complex datasets, building scalable architectures, and delivering polished user experiences.

What You’ll Do

Backend

• Design and build scalable backend services and APIs
• Develop systems that process and manage large datasets
• Integrate backend services with external APIs and third-party platforms
• Ensure performance, reliability, and security of backend systems
• Collaborate with frontend engineers to design efficient API structures
• Maintain high code quality through testing and code reviews

Frontend

• Build responsive and accessible UI components
• Implement complex interfaces such as dashboards, tables, forms, and data views
• Integrate frontend applications with backend services
• Optimize performance and user experience

• Maintain quality through frontend testing and best practices

   

What We’re Looking For

Backend

• 4+ years of professional backend development experience
• Strong experience with Python or Node.js
• Experience designing and building REST APIs
• Solid understanding of relational databases and data modeling
• Experience with query optimization and large datasets
• Familiarity with asynchronous programming
• Experience with background jobs or task processing
• Familiarity with messaging systems or queues
• Experience integrating external APIs
• Experience with cloud platforms (AWS, GCP, or similar)
• Experience writing automated tests
• Experience collaborating in a team environment and reviewing code

Frontend

• 3+ years of experience with React
• Strong knowledge of JavaScript or TypeScript
• Experience building modern web applications
• Experience integrating frontend with backend APIs
• Experience with forms, tables, and complex UI components
• Understanding of responsive design and accessibility
• Experience with state management solutions
• Familiarity with frontend testing

Nice to Have

• Experience with AI or LLM integrations
• Experience with vector databases or search systems
• Experience processing documents or large structured datasets
• Experience with event-driven architectures
• Experience with Next.js or similar frameworks
• Experience optimizing large frontend applications
• Experience implementing real-time features (WebSockets, etc.)

• Experience with data visualization or dashboards

   

What We Offer

• Opportunity to work on diverse and technically challenging projects
• A supportive and collaborative engineering team
• 12 vacation days per year
• 5 sick days per year
• English classes
• Mental health support, including access to therapist and psychologist services

We are looking for a Middle+ / Senior Full Stack Developer who can work on both frontend and backend parts of a product. You should be confident in building user-friendly interfaces, creating reliable APIs, and working with databases.

In this role, you will develop new features, improve system performance, fix bugs, and help make technical decisions. You should be comfortable working independently, writing clean code, and collaborating with designers, QA, and other developers.

A strong candidate understands the full development lifecycle, can take ownership of tasks from idea to release, and has strong English knowledge for effective communication in an international environment.

We are looking for a Middle/Senior Full Stack Developer to join a long-term project for our international client. You will be working on customer-facing web platforms and self-service portals, contributing both to frontend and backend development, as well as DevOps processes.

We are open to considering both full-stack engineers and backend-focused developers (Java or Golang) 

What will you do?

• Develop and maintain web applications and self-service portals
• Work across backend (Java / Golang) and frontend (React, TypeScript) layers
• Contribute to DevOps processes, including CI/CD and cloud infrastructure
• Collaborate with cross-functional teams 
• Write clean, testable, and secure code following best engineering practices
• Participate in code reviews and improve overall code quality
• Support and mentor junior team members
• Continuously improve system performance, reliability, and user experience

What are we looking for?

• 4+ years of experience as a Full Stack Developer or Backend Developer with modern software development practices and principles
• Strong expertise in building applications using Java or Golang 
• Front-end development experience with React and TypeScript 
• Proven track record of designing and maintaining RESTful APIs and navigating the complexities of Distributed Systems.
• Hands-on experience deploying and scaling applications using Docker and Kubernetes within AWS/GCP
• Strong knowledge of databases (specifically MariaDB) and search/analytics engines like Elasticsearch
• Practical use of AI tools in development (e.g., GitHub Copilot, Claude Code, Cursor, Codex)
• Experience with CI/CD tools (e.g., GitHub Actions)
• Strong engineering practices: Unit testing, secure development, performance awareness, and quality‑driven coding
• English proficiency at B2 level (Upper-intermediate) or higher
• Proactive, solution-oriented mindset and willingness to learn

Nice to have

• Experience with Node.js
• Experience building customer-facing user interfaces
• Familiarity with TM Forum Open Digital Architecture
• Experience with Salesforce APIs
• Knowledge of web analytics tools (e.g., GA4)
• Experience working in Agile/Scrum environments

We offer

• Competitive compensation
• Flexibility to work remotely
• Opportunities to work with international clients
• Paid day-offs, including public holidays and special occasions
• A supportive environment that values both personal and professional growth

👉 Should this position align with your expertise, please submit your CV!
Our team will review it and reach out to discuss the details.

Senior Fullstack Engineer – React, NestJS, AWS

We're a growing tech startup building a customer-facing web platform and an internal AI model training platform. We're looking for a Senior Fullstack Engineer to join our engineering team and take real ownership of core systems.

This is a role for engineers — people who understand code deeply, think about architecture, and solve problems independently. Not someone who completes tasks, but someone who thinks about why they exist.

Responsibilities:

• Develop and maintain the full-stack platform (React frontend, NestJS backend, AWS infrastructure)

• Design and implement scalable backend services and APIs

• Work with Postgres RDS — design, optimize, and maintain relational data models

• Build and maintain event-driven services using SQS and microservices architecture

• Write unit and e2e tests (Vitest + Cypress) and maintain CI/CD pipelines (GitHub Actions)

• Write clean, modular code following SOLID principles

• Collaborate directly with Product to translate requirements into technical solutions

Requirements:

• Senior-level experience with React, NestJS, and TypeScript (frontend + backend)

• Hands-on experience with AWS (Lambda, EC2) and Docker

• Strong understanding of relational databases and Postgres

• Experience with microservices, event-driven architecture, and SQS

• Solid Git workflow and experience working in a team codebase

• Ability to read, understand, and improve unfamiliar code independently

• Clean code standards — SOLID, well-structured, maintainable

What We Value Most:

Independent thinking. We want engineers who trace problems to their root, understand the full flow of a system, and bring solutions — not just questions. If you read code before you Google, you'll fit right in.

We have a fully built real estate & rental management platform (React + TypeScript + Supabase, 200+ DB tables, live in production). We need an AI engineer to build and integrate the AI layer — the "brain" of the platform.

WHAT YOU'LL BUILD:
1. 3-Layer AI Architecture:
• Platform Brain — central AI that oversees all data across multiple companies
• 7 Department AI Agents — each with its own expertise (Investment, Sales, Finance, HR, Marketing, Operations, Leads), unique system prompts, and scoped database access
• Employee Personal AI — learns each employee's communication style over time, auto-replies to messages, drafts emails in their voice, gets smarter with every interaction

2. AI Features:
• Auto-fill property listings from just an address (AI generates descriptions, neighborhood info, nearby transport, amenities)
• AI Chat widget for website visitors (multilingual: EN/ES/HE)
• AI Meeting system — summarizes video meetings, extracts action items, runs "AI Agent Meetings" where all 7 agents discuss strategy using real company data
• AI Competitor tracking — auto-analyzes competitor websites and social media
• Content generation for marketing (text, social posts, suggestions)

3. API Integrations:
• Claude API (Anthropic) — primary LLM
• ElevenLabs — voice generation
• Vector embeddings with pgvector (built into our Supabase)

TECH STACK (already built, you integrate AI into it):
• Frontend: React + TypeScript + Tailwind
• Backend: Supabase (PostgreSQL + Edge Functions + Auth + Realtime)
• Deployment: Lovable Cloud
• Code: GitHub

REQUIREMENTS:
• 3+ years with LLM APIs (Claude and/or OpenAI) in production !!!
• Experience building multi-agent AI systems !!!
• Strong TypeScript/Node.js
• Supabase or PostgreSQL experience
• Vector embeddings & RAG (Retrieval Augmented Generation)
• Prompt engineering expertise

Senior Full-Stack Engineer with a strong backend focus to work on a large-scale web platform used by a significant number of customers. The system includes a site-building tool enhanced with AI features, a client-facing dashboard, and internal tooling for support operations.

About the role

The majority of your work will be focused on backend development using Node.js and TypeScript. From time to time, you’ll also contribute to frontend tasks built with React, though this represents a smaller portion of the workload.

Infrastructure and production environments are handled by a dedicated DevOps team. While you might occasionally experiment locally or in isolated environments, you won’t be responsible for managing production systems.

AI functionality is already integrated into the product via third-party services. You’ll be working with external APIs rather than building machine learning models from scratch.

Responsibilities

• Build and maintain backend services end-to-end
• Support frontend development when required for feature delivery
• Release features and ensure their stability after deployment
• Work closely with Product, Platform, and reliability teams
• Suggest and drive technical improvements alongside existing architectural guidance

Tech stack

Node.js, TypeScript, React, Redis, MySQL, PostgreSQL, Elasticsearch, messaging systems (Kafka or RabbitMQ), monitoring tools

Requirements

• Solid commercial experience with Node.js and TypeScript
• Practical understanding of React and modern frontend development
• Strong knowledge of databases and caching strategies
• Ability to troubleshoot issues across distributed systems
• Ownership mindset — comfortable delivering features from idea to production
• English for daily written communication and regular team syncs

Nice to have

• Experience with microservices and API design
• Familiarity with Docker and Kubernetes
• Performance optimization skills
• Basic understanding of Linux and networking
• Knowledge of clean architecture principles and testing practices

What’s offered

• Fully remote setup with flexible working hours
• Paid time off
• Compensation reviews twice a year
• Contractor engagement with accounting support
• Opportunity to contribute to a high-scale product and influence technical decisions

We are looking for a Strong Middle / Senior Full-Stack Engineer to join an early-stage Dutch startup building a tech product with ML and data components.

Early-stage startup in the Netherlands is developing a foundational tech product that combines full-stack development with machine learning and data-driven features. The product is in its very early phase — everything is being built from scratch. You will be the second full-time engineer in the team, working closely with the founder and directly shaping the product architecture and direction.
 

Location: Netherlands (Delft)
Working format:

• First few months: remote possible
• Long-term: hybrid (office ~2 days/week in Delft) + relocation required (candidate should be willing to relocate to the Netherlands).
   

Your responsibilities will include:

• Full-stack product development (frontend + backend).
• Rapid feature iteration, experimentation and building production-ready features.
• Working across frontend (React), backend (Node.js) and some ML/data-related tasks (Python).
• Contributing to product decisions, system architecture and technical foundation.
• Collaborating closely with the founder and small core team.
• Building scalable and maintainable code in a very early-stage environment.
• Taking ownership of features from idea to production.
   

What we expect from you:

• 5+ years of experience working as a Full Stack Developer.
• Solid experience with TypeScript, React and Node.js (Express.js).
• Confident work with SQL / PostgreSQL.
• Strong learning ability and readiness to work as a highly adaptable generalist.
• Experience with product development and iterative approach.
• Good spoken and written English.
• Proactive, high-energy and product-oriented mindset.
• Comfortable working in a small team with high impact and minimal processes.
   

Nice to Have:

• Python experience (especially for ML or data tasks).
• Basic understanding of Machine Learning.
• Docker, cloud/infrastructure knowledge or networking fundamentals.
• UI/UX understanding.
• Biotechnology background.
   

We offer:

• Opportunity to join an early-stage startup as one of the first engineers and have a massive impact on the product.
• Work directly with the founder and shape both the product and technical decisions.
• Chance to build a solid technical foundation from scratch in a product with ML components.
• Small, highly impactful team environment where your work is highly visible.

We are looking for a Full Stack Developer who actively uses modern AI tools (agentic coding / vibe coding) to build products fast and efficiently.

This role is focused on building MVP SaaS products, integrations, and scalable web applications using JavaScript-based stack and AI-assisted workflows.

 

What you will do:

• Build full-stack SaaS applications from scratch using AI-assisted development
• Work on MVPs and production-ready web apps
• Implement third-party integrations (APIs, payments, automation tools, etc.)
• Deploy and manage applications on Vercel
• Work with databases like PostgreSQL / Neon
• Collaborate directly with founder and move fast

 Requirements:

• Strong knowledge of JavaScript (Node.js, React, Next.js)
• Experience building full-stack applications (SaaS / web apps)
• Experience with AI tools / vibe coding / prompt-based development
• Solid experience with:
  • Vercel
  • PostgreSQL / Neon
  • API integrations
• Understanding of scalable architecture (basic level is enough)
• Ability to work independently and deliver fast
• Good communication skills
• English level B2+

Nice to have:

• Experience with Supabase
• Experience with Stripe / payment systems
• Experience with OpenAI / LLM integrations
• Experience building MVPs from scratch

Conditions:

• Full-time
• Remote
• Fast-paced startup environment