Jobs Fullstack

About Us 

ChatRevenue.ai was founded by Ratmir Timashev (founder of Veeam) 

and Vlad Voskresensky (founder of Revenue Grid) to create the next generation of CRM systems. 

We’re building an AI-native CRM platform that completely redefines how sales automation 

works. 
By structuring data for intelligent automation, we enable agentic AI to design workflows, assist Sales Leaders and Reps in real time, and generate predictable sales funnels – all through a simple, chat-driven interface. 

Our mission: to build a CRM that works for User, not the other way around. 

About the Role 

This role is for engineers who thrive in dynamic environments where processes are still being shaped and impact is immediate. 

At ChatRevenue, we focus on outcomes rather than ceremonies – no endless grooming sessions or heavy planning rituals. 

Our engineering processes are evolving, and you’ll have a direct influence on how they are structured. There are no excessive management layers or long approval chains – decisions are made quickly through open discussion and direct collaboration. 

Previous startup experience is not required. What matters is your ability to operate without rigid rules, take initiative, and make independent technical decisions. 

What You’ll Do 

• Architect and maintain backend services using Python / FastAPI 
• Build seamless integrations with between our code product and external ecosystems (CRM, communication platforms) 
• Design and optimize scalable ETL/ELT pipelines 
• Develop and deploy production-ready Generative AI features to enhance product capabilities 
• Lead features from initial technical design to production release and ongoing support 
• Deliver high-quality code in short, impactful cycles 
• Maintain DevOps best practices (testing, CI/CD, security, containerization) 

What We’re Looking For 

• Strong Python skills (FastAPI, async, Pydantic) 
• Experience with SQL (PostgreSQL), Pandas, and data pipelines 
• Solid understanding of HTML/CSS/JavaScript
• Hands-on experience with Docker, Kubernetes, Azure, Kafka 
• Experience with CI/CD and Git-based workflows 
• Curiosity about product-building and openness to evolving environments 
• Strong teamwork skills – constructive code reviews, active participation in technical discussions, and ownership mindset 

Nice to have 

• Experience with OpenSearch 
• DevSecOps exposure 
• Advanced debugging skills 
• Azure API Management 
• Experience developing Generative AI features 
• Integrations with Salesforce, Google Meet, or similar platforms 

Why Join Us 

• Remote-first culture – work from anywhere 
• Flexible schedule aligned with European time zone 
• No bureaucracy or micromanagement – transparent and fast decision-making 
• Direct product impact – your work ships quickly and is visible in production 
• Real ownership – influence architecture and technical direction 
• Unlimited paid vacation and paid sick leave 
• Company-provided equipment 
• Premium AI tools subscription (ChatGPT, Copilot, Claude) 
• Professional growth – opportunity to own a technical domain or lead a module as the company scales 
• Competitive compensation starting from $6,000

If you want to build an AI-native CRM from the ground up and be part of the core team shaping the product, we’d love to hear your story. 

Apply or reach out directly – let’s build something truly transformative together. 

We are looking for a Senior Full Stack Developer who operates at Tech Lead level.

This role focuses on architecture ownership, technical decision-making, and team leadership in complex e-commerce and SaaS products.

Format: Remote (candidates located in Ukraine or Europe)
Company: 3DVisual Studio
Company type: Product
Salary: up to 5000$ gross
English level: B2+

Core Requirements & Tech Stack

• 5+ years of commercial experience with PHP (Laravel)
• 3+ years of experience with React
• Experience with Magento / Shopware / WooCommerce (at least 2 years)
• 2+ years in a Lead / Tech Lead role
• Strong experience in system architecture design
• Experience with high-load / scalable systems
• Strong knowledge of APIs, performance, and security
• Experience with legacy code and refactoring

Responsibilities

• Analyze and improve system architecture (includes creation of diagrams and documentation)
• Make and validate technical decisions
• Lead developers and ensure delivery quality
• Conduct code reviews and enforce best practices
• Communicate with stakeholders and third-party integrations

Projects We build:

• SaaS platforms
• 3D configurators
• E-commerce solutions

👉 Complex logic, integrations, and performance-critical systems

Company Benefits

• Cooperation via FOP Accounting support provided by the company (if needed)

For full-time cooperation:

• 15 days of paid vacation
• 5 paid sick days
• Paid public holidays
  
  Interview Process

HR Interview→Technical Interview→ Deep Technical / Architecture Interview→ Final Interview

Important
We are looking for a technical leader with an ownership mindset who can effectively collaborate with team members.

We’re seeking a strong middle - senior backend developer—or a full-stack developer with a strong backend focus - for ongoing project-based work, with the potential to transition into a full-time role.

Projects you will work on are SaaS platforms and subscription-based products for international clients: multi-tenant systems, payment integrations, API-heavy backends. Laravel + React stack.
 

Requirements

• Proficient in PHP 8.x
• Extensive experience with Laravel (modern versions)
• Solid understanding of relational databases (PostgreSQL or MySQL), schema design, indexing, query optimization
• Experience building REST APIs and consuming third-party APIs (OAuth, webhooks, error handling, retry logic)
• Experience with Stripe integration (Billing/Subscriptions, not just Checkout)
• Multi-tenant architecture experience (shared DB with tenant isolation, per-tenant configuration)
• Queue systems, background jobs, event-driven architecture
• Git knowledge (mandatory)
• Testing methodologies (PHPUnit, TDD)
• Software design principles and patterns
• Security best practices
• Strong problem-solving skills and attention to detail

Bonus:

• Payment lifecycle management (failed payments, retries, dunning, cancellations)
• Transactional email services integration
• Multi-language applications (i18n)
• Docker, CI/CD pipelines

AI-Assisted Development

We use Claude Code as the primary development tool across all projects. This is not optional and not experimental. It's how we build.
Experience with AI coding agents (Claude Code, Cursor, Copilot, or similar) is a strong advantage. If you've been using these tools in production for real tasks (not just autocomplete), you'll fit right in.
If you haven't worked with AI agents yet but you're a fast learner, that's fine too. We'll onboard you. What matters is the willingness to adopt this workflow and not fight it.
 

Personal Qualities

• Responsible and result-driven
• Meticulous attention to detail
• Self-organized, able to execute tasks without oversight
• Consistently meet deadlines

• Transparent communication, honest about blockers and timelines

   

How We Work

• Remote, async-first. Slack for communication.
• You get a clear spec (in English), access to the repo, and autonomy to deliver. We do code review, not micromanagement.

• Project-based billing. We agree on scope and hours per project.

   

To Apply

❗️ Send relevant code samples (Laravel) demonstrating your coding style and thought process, plus portfolio links or previous project examples.
 

Hello guys 👋

At Intobi, we're a software and product development company passionate about driving innovation and progress.

We help our clients succeed by delivering custom-built tech solutions designed to meet their unique needs.

Our expertise lies in developing cutting-edge Web and Mobile applications.

We’re looking for a success-driven Full-Stack .NET Developer to help us who has experience with RFID and bluetooth tracking. 

Full-Time, Long-Term position, work from the office or remote.

Technical requirements:

— 4+ years of experience with Angular and .NET;

— Angular;
— Redis;

— .NET;
— Entity Framework;
— Hangfire;

— MySQL;
— MongoDb;

— English — Upper-intermediate.

What we offer:

— Competitive salary;

— Paid vacation and sick leaves;

— 8 hours a working day, 5 days a week;

— Career growth potential;

— Friendly team and corporate events.

Please send your CV here or via email.

Should the first stage be successfully completed, you’ll be invited to a personal interview.

About the company

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries.

About the project

We’re hiring for Elementor — one of the largest website-building platforms globally.

• A new website is created every 10 seconds
• 18M+ websites powered worldwide
• Used in 150+ countries

You’ll work on a large-scale product, building tools used by millions every day.
 

What you’ll do

• Build and scale backend services (Node.js / NestJS)
• Develop frontend features with React
• Own features end-to-end: design → development → release
• Work on performance, scalability, and security
• Contribute to AI-powered workflows
• Collaborate with product, design, and engineering teams

Tech stack

• Node.js (NestJS), TypeScript
• React, JavaScript (ES6+), CSS
• MySQL
• Testing: unit + E2E
• AI tools: GitHub Copilot, ChatGPT

Requirements

• 6+ years of full-stack development experience
• 3+ years with Node.js and TypeScript
• 2+ years with NestJS (or similar framework)
• 3+ years with React
• Experience with MySQL (design + optimization)
• Experience building scalable production systems
• Strong understanding of web fundamentals (HTTP, architecture, performance, security)
• Experience with automated testing (unit + E2E)
• Experience using AI tools (Copilot, ChatGPT) in development
• English — Upper-Intermediate

Nice to have

• Experience with WordPress / Elementor
• Open-source contributions
• SCSS
• Playwright

Why this role is interesting

• Large-scale product (18M+ websites)
• Strong backend ownership
• Real system design challenges
• Practical use of AI in development workflows
• Direct impact on a global product

What we offer

• Hybrid setup — start fully remote, then transition to 2 days/week in the Warsaw office.
• 20 days paid vacation + holidays
• Full legal & accounting support
• Competitive compensation + regular reviews

Requirements:

• 2+ years of experience with PHP (hands-on development).

• Solid experience with the Laravel framework.

• Knowledge of JavaScript (bonus if you’ve used ES2015+).

• Good HTML & CSS knowledge with 2+ years of experience in layout development.

• Experience with databases (e.g., MySQL, MongoDB, or others).

• Familiarity with package managers (composer, npm, yarn).

• Understanding of OOP and MVC architecture.

• English: Intermediate level (focus on written communication).

Nice to Have (but not required):

• Experience with modern tools: PHP8+, SASS, TypeScript, Webpack, Babel.

• Familiarity with version control systems like Git or SVN.

Responsibilities:

• Develop new applications, features, services, and APIs using Laravel and JavaScript.

• Create and maintain responsive, high-quality layouts using HTML and CSS.

• Stay up-to-date with new technologies, trends, and best practices in web development.

• Collaborate with team members to ensure efficient and high-quality internal processes.

• Participate in technical discussions and code reviews, applying critical thinking and contributing to the team’s growth.

• Focus on delivering clean, maintainable code with an emphasis on simplicity and usability.

What We Offer:

✔️ Stable and competitive compensation with regular performance-based reviews.

✔️ Opportunities for career growth and continuous skill development.

✔️ Work on innovative projects using cutting-edge technologies.

✔️ A dynamic environment with minimal bureaucracy to focus on delivering results.

✔️ Professional bookkeeping and tax support.

✔️ Compensation for external English language training.

Why Join Us?

We’re a dynamic team passionate about creating impactful projects. At CUDEV, you’ll grow professionally while collaborating with experienced colleagues in an environment that fosters creativity, innovation, and continuous learning.
 

Who We Are

DevOut Labs is a white-label development team delivering websites for US-based marketing agencies. More information: devoutlabs.com

Position Overview

We are seeking a Web Developer with diverse web development experience. This role requires proficiency across WordPress, Webflow, Shopify, and ideally React. 
You will develop, customize, and maintain websites for our clients, collaborating closely with design and development teams to create functional and high-performing websites. This position is fully remote.

Responsibilities

• Develop and maintain websites on WordPress, Webflow, Shopify, and custom frameworks
• Collaborate with designers and other developers
• Optimize websites for performance, speed, and responsiveness across devices
• Troubleshoot issues, debug, and implement fixes across platforms
• Ensure websites follow best practices for SEO, accessibility, and performance
   

Requirements

• Proven experience as a Web Developer with portfolio examples of websites built on WordPress, Webflow, and Shopify
• Proficiency in HTML, CSS, JavaScript and PHP
• Understanding of CMS platforms, e-commerce, and front-end frameworks
• Ability to work independently and efficiently in a remote environment

What You Will Get

• Exposure to interesting and complex projects with challenging logic
• Minimum bureaucracy and fast decision-making processes
• Transparent and fast communication with the team
• Opportunities to learn and grow across multiple platforms (WordPress, Webflow, Shopify, React)
• Collaborative and supportive remote work environment
• Recognition for contributions and impact on projects

Recruitment Stages

1. Initial Interview — up to 20 minutes
2. Test Task — practical development assignment
3. Interview with CEO — final stage
4. Final Feedback — offer discussion

As a Full Stack Engineer at BotsCrew, you’ll be part of a cross-functional team responsible for designing, building, and scaling products and features across our clients’ solutions. You’ll work across backend and frontend development and contribute to implementing AI-powered functionality in real products.

Our projects combine modern full-stack development with AI integrations. We’re looking for an engineer who enjoys building practical solutions, solving complex technical problems, and experimenting with new technologies.

You’ll collaborate closely with engineers, project and product managers, quality assurance engineers, and UX designers to bring impactful features to life — from intelligent assistance capabilities to workflow automation.

Key Requirements

• 2+ years of experience in backend or full-stack development;
• Strong experience with Java and the Spring Framework;
• Solid experience with Python and willingness to work across both Java and Python codebases;
• Experience working with modern frontend frameworks such as React.js, Next.js, or Angular;
• Strong understanding of RESTful API design and integration;
• Experience using Docker for local development and deployment;
• Familiarity with CI/CD pipelines (e.g., GitHub Actions, GitLab CI);
• Hands-on experience with cloud infrastructure (AWS, Azure, or GCP);
• Strong problem-solving skills and a collaborative mindset;
• Good spoken and written English (Upper Intermediate level or higher);
• Basic experience or strong interest in AI technologies, such as working with LLM APIs, prompt engineering, embeddings, or vector search. This experience may come from commercial projects, personal projects, or experimentation.

What You’ll Do

• Develop and maintain backend APIs using Java and Python;
• Design and improve frontend interfaces using ReactJS and NextJS;
• Build and enhance LLM-based features using APIs (e.g., OpenAI), embeddings, vector storage, vector search, and prompt engineering techniques;
• Write clean, testable, and well-documented code;
• Contribute to system architecture and scalable solution design;
• Collaborate with clients and stakeholders to gather requirements and deliver value;
• Participate in agile ceremonies (daily stand-ups, retrospectives, sprint planning).

Would be a plus

• Hands-on experience building AI assistants or autonomous agents;
• Understanding of prompt engineering techniques to influence LLM behavior;
• Familiarity with Retrieval-Augmented Generation (RAG) concepts;
• Experience with vector databases (e.g., Pinecone, Weaviate, etc.);
• Experience integrating LLM APIs such as OpenAI, Claude, or Gemini;
• Experience working with Shopify.

🌟 Perks & Benefits

• 20 working days of paid vacation plus 5 days of paid sickness;
• Flexible work schedule & comfortable remote work conditions;
• Compensation aligned with your experience and role scope;
• Access to Regus coworking spaces when needed;
• FOP (private entrepreneur) accounting and support services;
• Business subscription to ChatGPT to support productivity and experimentation with AI tools;
• PDP creation and guidance from our mentors;
• A talented and remarkable company culture.

Dwarf Engineering is a Ukrainian product & engineering company shaping the future of DefenseTech.
We create game-changing tech solutions that ease the work and save the lives of the Defense Forces of Ukraine, giving them the advantage they need.
Our mission is to make advanced defense technologies accessible and to deliver them faster where they matter most.

We are looking for a Python Fullstack Engineer to join our dynamic team! This is not a typical web-stack role. You will be responsible for designing, building, and owning the complete, end-to-end solution from our high-performance cloud services (FastAPI) to a new, cross-platform desktop application (PyQt/PySide).
If you are a backend specialist who is ready to build a complete product from the database to the user’s desktop, we want to hear from you!

If it sounds like you:

• You are passionate about writing clean, maintainable, and production-grade code across the entire stack;
• You have a strong fullstack mindset, with the ability to design and implement complete software solutions from the database to the UI;
• You are a proactive problem-solver with a deep respect for reliability and best practices;
• You are excited to own and master both sides of the stack: building robust backends (FastAPI) and leading the development of a new desktop client (PyQt/PySide).
   

Requirements/Hard Skills:

• 3-4+ years of experience as a FullStack Python Engineer, with a primary focus on backend development and an interest or experience in desktop application development;
• Strong proficiency in Python, with hands-on experience building and maintaining services using FastAPI;
• Deep understanding of REST API design, business logic implementation, and integration between system components;
• Experience working with relational databases (PostgreSQL preferred), ORM frameworks (e.g., SQLAlchemy), and migration tools (e.g., Alembic);
• Practical experience with Docker for containerizing services during development and production deployment;
• Experience or familiarity with CI/CD processes (GitLab, Azure DevOps) — from test automation to continuous deployment;
• Ability to design and deliver end-to-end solutions, from backend architecture to user-facing functionality;
• Experience or strong interest in building desktop applications using PyQt / PySide, including packaging and interaction with local hardware.
   

Responsibilities:

• Own and architect the complete end-to-end solution, ensuring seamless integration between cloud services, APIs, and the desktop client;
• Lead the development and implementation of a new, cross-platform Python/PyQt desktop application designed to interact with both backend APIs and local hardware devices;
• Develop, maintain, and scale high-performance backend services using FastAPI and PostgreSQL;
• Design, implement, and document robust REST APIs, complex business logic, and service integrations;
• Take full ownership of database design, creating and managing data models and schema migrations using SQLAlchemy and Alembic;
• Containerize services using Docker and manage the build/deployment environments;
• Apply and champion observability and reliability best practices across the full stack, including structured logging, metrics monitoring, and robust error handling;
• Maintain and continuously improve CI/CD pipelines (e.g., GitLab, Azure DevOps) to ensure efficient and reliable build, test, and release automation.
   

What we offer:

• Work for Ukraine’s victory at Defense Tech company, where your work directly contributes to strengthening our country’s defense capabilities and achieving victory;
• We guarantee full official employment from day one;
• Reservation of employees from day one, subject to relevant documents;
• Flexible schedule, you can begin your workday anytime up to 12:00 PM, finishing accordingly (8 working hours + 1 hour lunch) with 1 day of work from home per week;
• You will receive a full technical setup and height-adjustable desks;
• Our office is located in Kyiv (left bank).
   

Join us if you want your work to have a real impact!

Role Description

We are seeking a Fullstack Trainee to join our international team.
 

The ideal candidate should have a solid foundation in web development, particularly in JavaScript.
 

Our team works on the development and enhancement of a Big Data product, offering a unique opportunity to grow professionally while working on advanced, real-world challenges.
 

This role is ideal for students in Computer Science or related fields who already have some practical team experience and want to deepen their skills in a professional environment.

Key Responsibilities

- Develop and maintain web applications in JavaScript

- Collaborate with the team to solve performance issues and enhance functionality
- Write clean, readable, and well-structured code
- Assist in implementing new features under mentorship

Technical Requirements

- Solid knowledge of JavaScript and core web development principles (HTML, CSS, APIs, async logic, etc.)

- Understanding of how web applications work (client–server model, REST APIs, basic database concepts)
- Computer Science degree (in progress or completed) or equivalent practical knowledge

- Experience working on real team projects is a plus

Soft Skills & Mindset

- Strong problem-solving skills and attention to detail
- Ownership mindset - ability to take responsibility for tasks and follow them through to completion

- Ability to structure ambiguous tasks and ask clarifying questions
- Growth mindset and willingness to continuously improve
- Curiosity and genuine interest in understanding how things work
- Strong learning ability and openness to feedback
- Good communication and teamwork skills
- English level: Intermediate+ (able to participate in technical discussions and daily communication)

Internship Details

- Opportunity for a full-time position after 3 months

- Full remote
- Hands-on experience working with an experienced international team

What We Offer

- Personalized mentorship for professional growth

- Competitive compensation

- Remote work flexibility

- A culture promoting independence and innovation

How to Apply

Submit your CV.

If your experience aligns with our expectations, we’ll get in touch to discuss the next steps.

We review applications and aim to respond as quickly as possible.

Pixel mindIT is an innovative IT company specializing in software development, web applications, and mobile apps. We bring together a team of professionals who work with the latest technologies. You’ll find a creative approach to solving complex challenges, efficient project management, and a continuous improvement process with us.

Requirements:

- Strong proficiency in JavaScript/TypeScript.
- Experience with React, Next.js.
- Familiarity with Redux/React Redux.
- Experience working with REST API and HTTP methods.
- Proficient in using Git.
- Еxperience with Node.js, specifically using Express.js and Nest.js frameworks.
- Hands-on experience working with GraphQL APIs.
- Proficiency in working with various databases such as MongoDB, Redis, MySQL, and PostgreSQL.
- Prisma.js, TypeORM, and Sequelize.
- Proficient spoken English (B1-B2 level).

What We Offer:
- Flexible working hours.
- A friendly and welcoming work environment in a comfortable office.
- Official employment with a competitive salary based on your experience and skills.
- An exciting opportunity to contribute to innovative projects.

We are seeking a skilled Full Stack ( Python/React) Developer with expertise in Python and ReactJS, eager to build high-performance, mission-critical systems optimized for agile development and scalability.

Our tech stack includes:
Python, TypeScript, ReactJS, Redux, Django, Google App Engine, Cloud Firestore, Memcache, Cloud Tasks, Firebase, BigQuery, Elasticsearch, and more.

Key requirements:

• Strong proficiency in Python with experience in asynchronous frameworks like FastAPI (or similar, such as Flask or Django).
• Proven experience in designing scalable backend systems, APIs, and microservices.
• 3+ years of hands-on experience in front-end development using ReactJS.
• Expertise in building UI components and modules with ReactJS and TypeScript.
• Solid debugging and troubleshooting skills for backend applications.
• Strong problem-solving skills, with the ability to work in a fast-paced, collaborative environment.
• Familiarity with both SQL and NoSQL databases.
• Experience working with cloud platforms such as AWS, GCP, or Azure.
• Knowledge of containerization technologies like Docker and Kubernetes.

Responsibilities:

• Adhere to industry best practices to develop user interfaces that are robust, efficient, and visually engaging.
• Write clean, maintainable code for both the frontend (ReactJS) and backend (Python with SQL/NoSQL).
• Collaborate with backend engineers to create and maintain RESTful APIs and microservices.
• Follow software development best practices to ensure timely delivery of high-quality solutions.
• Troubleshoot and resolve issues across the full stack, from the UI to backend processes.
• Continuously document application changes and implement updates to facilitate future maintenance.
• Build scalable backend infrastructures to support seamless frontend functionality and a smooth user experience.

We offer:

• 12 sick days and 18 paid vacation days per year.
• Comfortable working conditions (including a MacBook Pro and Dell monitor at every workstation).
• A smart, engaging environment with exciting projects from well-known clients.
• Flexible work schedule.
• Competitive salary based on your qualifications.

Who are we looking for?

We are looking for a developer who is ready to join our team and start working together on our projects.

Tasks?

Your tasks will focus on the skills and expectations listed below and the use of new approaches and technologies.

Why did the job open?

We want to invite a new specialist to the company's staff due to the increase in the number of projects.

Requirements:

• B2 English (Upper-Intermediate);
• At least 4+ years of commercial experience with JavaScript;
• At least 3+ years of commercial experience with Node.js;
• At least 2+ years of commercial experience with React.js;
• Experience with TypeScript and Nest.js;
• Experience working with meta-frameworks over React (e.g., Next.js, Remix);
• Experience with RDBMS and NoSQL databases;
• Experience with implementing automated testing platforms and unit tests;
• Experience with REST;
• Experience with Redux/Mobx or other state management libraries;
• Familiarity with modern interface pipelines and assembly tools;
• Ability to communicate well with process participants and team members related to business;
• Experience in integrating with external APIs;
• Solid understanding of object-oriented and functional programming;
  Flexibility and ability to adapt to changes;
• Ability to work closely with Product Managers and Engineering Team-members;
• Experience working with message brokers such as RabbitMQ, SQS, or NATS;
• Understanding and practical knowledge of Secure Software Development Life Cycle (SSDLC) principles;
• Experience building AI-powered solutions;
• Knowledge of observability and monitoring practices, including implementation of metrics, logs, and traces based on industry best practices.
   

Good to have:

• Experience with DevOps;
• Experience with cloud services such as AWS, GCP or Azure;
• Experience with CI/CD processes;
• Experience with Unit/E2E testing;
• Understanding of design and architecture principles;
• Experience with Infrastructure as Code (IaC);
• Experience with solution and system architecture;
• Experience using AI tools to enhance productivity;
• Experience building advanced AI agents;
• Familiarity with emerging protocols and specifications for AI agent systems, such as MCP, A2A, and AG-UI.

Who are we looking for?

We are looking for an "independent fighting unit" who is ready to join our Team and start working together on our projects immediately or after training.

Tasks?

Your tasks will focus on the skills and expectations listed below and the use of new approaches and technologies.

Why did the job open?

We want to invite a new specialist to the company's staff due to the increase in the number of projects and the opening of a branch.

Requirements:

• B2 English (Upper-Intermediate)
• At least 3+ years of commercial experience with JavaScript;
• At least 2+ years of commercial experience with Node.js;
• At least 2+ years of commercial experience with React.js;
• Experience with Typescript, Nest.js;
• Experience with RDBMS and NoSQL databases;
• Experience with implementing automated testing platforms and unit tests;
• Experience with REST;
• Experience with Redux/Mobx or other state management libraries;
• Familiarity with modern interface pipelines and assembly tools;
• Ability to communicate well with process participants and team members related to business;
• Experience in integrating with external APIs;
• SOLID understanding of object-oriented and functional programming
• Flexibility and ability to adapt to changes;
• Ability to work closely with Product Managers and Engineering Team-members.

Good to have:

• Experience with DevOps;
• Experience with cloud services such as AWS, GCP or Azure;
• Experience with CI/CD processes;
• Experience with Unit/E2E testing;
• Understanding design, and architecture principles;
• Experience with message brokers, like RabbitMQ, SQS, etc;
• Experience with Infrastructure as code (IaC).

We are looking for a Senior Full-Stack Engineer (Kotlin + React) to join a team building a cybersecurity product.

In this role, you will take ownership of full-stack development, contribute to architectural decisions, and support the growth of the engineering team. This is a good fit for someone who is comfortable working in a startup environment, takes initiative, and enjoys solving complex technical challenges.
 

Responsibilities

• Design, build, and maintain full-stack applications using Kotlin (backend) and React (frontend)
• Work with Docker and containerization as part of deployment and DevOps tasks
• Contribute to architectural decisions as the product evolves and scales
• Mentor junior and mid-level engineers and support team growth
• Participate in on-call rotations and handle critical security issues when they arise
   

Requirements

• 5+ years of professional software development experience
• Strong experience in Kotlin backend development
• Strong experience in React frontend development
• Hands-on experience with Docker and containerized environments
• Agile mindset with the ability to work across both backend and frontend, adapting to changing priorities
• English — Upper-Intermediate (B2) or higher
   

Will be a plus

• Experience in cybersecurity or a strong interest in the domain
• Experience with WebSockets or real-time systems
• Broader DevOps experience beyond basic Docker usage
• Experience working in small, fast-paced startup teams