Jobs Developers

We are looking for an Autonomous systems engineer with a background in computer vision, control theory and mathematical modelling. The ideal candidate will have a strong math background, experience with autonomous systems, modelling and control design. We consider engineers at Middle and Senior levels - tasks and responsibilities will be adjusted accordingly.

Required Qualifications:

• 3+ years in R&D software development
• Hands-on experience with classical computer vision
• Understanding of geometrical computer vision principles
• System identification and control
• Sensor fusion/signal processing
• Proficiency in C++
• Experience with Python
• Experience with Linux and single-board computers
• Ability to quickly navigate through recent research and trends in computer vision and autonomous systems.

Nice to Have:

• Experience with SLAM and/or Visual-Inertial Odometry (VIO)
• Matlab
• Experience with PX4, betaflight, Ardupilot
• Familiarity with neural networks and common CV frameworks/libraries (OpenCV, NumPy, PyTorch, ONNX, Eigen, etc.)
• Experience with simulation tools (Gazebo, AirSim)
• SITL, HITL testing
• ROS2

Working conditions:

• Full employment
• Work from the office in Kyiv or full remote
• Official employment
• Reservation from mobilization
• 24 calendar days of vacation and paid sick leave
• A dynamic, innovative and large-scale team working on a number of new products and improving current products

Lobby X is a socially responsible business, a unique combination of the job platform and full-cycle recruiting agency, specializing in hiring top talents for government, business, tech, miltech, and progressive non-governmental organizations in Ukraine and globally.

About Us:
We are a fast-growing product company focused on building high-quality mobile applications in fintech and lifestyle domains. We're expanding our team and looking for a proactive Middle Flutter Developer to work on long-term projects with solid architecture and clean code.
 

Responsibilities:

Develop and maintain cross-platform mobile applications using Flutter

Collaborate with UI/UX designers, product managers, and backend developers

Write clean, scalable, and well-documented code

Participate in code reviews and contribute to best practices

Debug and resolve technical issues across Android and iOS platforms

Requirements:

5+ years of experience with Flutter

Strong understanding of Dart and Flutter SDK

Experience working with RESTful APIs and third-party libraries

Familiarity with state management tools (e.g., Provider, Riverpod, Bloc)

Knowledge of Git and agile development methodologies

Basic understanding of native Android and iOS development is a plus

English — Upper Intermediate or higher

Nice to Have:

Experience with Firebase services

CI/CD knowledge (Codemagic, GitHub Actions, etc.)

Understanding of SOLID principles and clean architecture

We Offer:

Remote-first environment with flexible working hours

Supportive and friendly team

Opportunities for growth and professional development

Paid vacation and sick leave

Next-generation autonomous AI systems are being built to move far beyond simple interaction — toward software capable of executing complex, real-world operations at scale. Backed by $5.1M from leading founders and venture investors, the company operates at the intersection of autonomous systems, distributed infrastructure, and applied AI, laying the foundation for truly self-operating digital entities.

At this pivotal stage of growth, we are looking for a Backend Engineer to play a central role in architecting and scaling the distributed systems that orchestrate thousands of intelligent AI agents in dynamic, real-world environments. This is an opportunity to shape the backbone of a platform designed for massive scale from day one - where your infrastructure decisions directly impact how autonomous systems perform in production.

Your responsibilities will include:

• Design and build high-performance backend systems that support AI-native product generation at scale
• Develop and maintain Python-based distributed services powering agent workflows
• Build and optimize API-heavy architectures using both Python and Node.js
• Implement robust orchestration layers for managing large numbers of AI agents
• Design and maintain evaluation and feedback loops to continuously improve AI-generated outputs
• Develop asynchronous workflows supporting complex agent lifecycles
• Ensure reliability, fault tolerance, and scalability across distributed components
• Optimize integrations with multiple model and data providers
• Build internal tooling for observability, monitoring, and system health tracking
• Collaborate closely with the Bay Area team within full Scrum ceremonies (daily standups, grooming, sprint planning)
• Take ownership of backend components from design through production.
   

What we expect from you:

• Core requirements
  • Strong backend engineering experience (Mid+ / Senior level).
  • Production experience with Python (required).
  • Ability to work in the PST time zone until 3 PM.
  • Solid hands-on experience with Node.js for API integrations (required).
  • Experience building API-heavy systems.
  • Understanding of LLM-based systems and AI-native development patterns.
  • Ability to quickly onboard and operate as a strong individual contributor.
  • Experience working in fully integrated Scrum teams.
  • Strong communication skills and proactive ownership mindset.
  • Availability to work as a fully embedded team member (not part-time across many projects).
  • Experience with agent orchestration systems.
  • Familiarity with LangChain, LangGraph, or similar ecosystems.
  • Background in distributed systems and asynchronous architectures.
  • Experience designing evaluation/feedback loops for AI systems.
  • Experience with PostgreSQL, Redis, or async job queues
     
• Nice to have
  • Experience with multi-agent architectures.
  • Experience with observability and tracing systems.
  • Exposure to GPU-enabled or high-throughput infrastructure.
     

We offer:

• The opportunity to join at a critical inflection point as we scale beyond stealth.
• Ownership over core backend and AI infrastructure components.
• A technically ambitious environment building AI-native systems from the ground up.
• Close collaboration with a highly skilled, fast-moving team.
• Direct impact on systems operating in live production environments.
• A role where technical excellence, autonomy, and long-term thinking are highly valued.

About the Company:
Todor3D is an outsourcing company working with international clients on modern digital products. We are expanding our mobile team and looking for an experienced Android Developer who can contribute to architectural design and influence technical decisions.

Key Requirements:

• 3+ years of commercial experience in Android development
• Confident knowledge of Kotlin as the primary development language
• Experience with the modern Android stack (Jetpack libraries)
• Hands-on experience with Jetpack Compose
• Strong understanding of Android lifecycle and state management
• Experience working with MVVM
• Experience with Kotlin Coroutines and Flow
• Experience with local data persistence solutions (Room, DataStore, or similar)
• Experience writing and maintaining unit tests
• Experience publishing applications to Google Play
• Confident use of Git

Architectural Expertise:

• Experience designing application architecture from scratch
• Practical understanding and implementation of Clean Architecture
• Experience building modular project structures
• Clear separation of layers (presentation, domain, data)
• Designing scalable state management systems
• Experience implementing dependency injection (Hilt, Koin, or similar)
• Practical application of SOLID principles
• Experience refactoring and improving architecture in existing projects

• Ability to make and justify technical decisions

   

  Nice to Have:

• Experience with CI/CD for mobile applications
• Experience with performance profiling and optimization
• Experience working with multi-module projects
• Participation in code reviews and mentoring less experienced developers

Responsibilities:

• Design and maintain Android application architecture
• Implement complex features and business logic
• Optimize application performance and stability
• Participate in technical planning and task estimation
• Collaborate with backend, design, and management teams
• Maintain high standards of code quality

We Offer:

• Competitive salary based on experience
• Full-time employment
• Flexible working hours
• Remote work option
• Opportunity to work on modern, technology-driven projects

What to expect from our process

We keep our hiring process simple, focused. Here’s how it works:

1. Initial conversation 

A short intro call to get to know each other, discuss your background. 

2. Technical interview

A deep dive into your experience. 

3. Interview with CEO/COO

A final conversation focused on company vision and cultural fit. It’s also your chance to ask any big-picture questions.

Position Overview

We are seeking a talented and creative Front-End Slot Game Developer with at least 2 years of professional experience in game development. You will be responsible for building high-performance, visually engaging slot games using modern web technologies. This role requires strong expertise in TypeScript, PixiJS, and GSAP, along with a passion for animation, performance optimization, and interactive gameplay.

You will collaborate closely with game designers, artists, and backend developers to deliver exceptional player experiences across desktop and mobile platforms.

Key Responsibilities

• Develop and maintain interactive slot games using TypeScript, over an in house game engine
• Implement rendering and visual effects using PixiJS
• Create smooth, engaging animations using GSAP
• Translate game design documents, wireframes, and mockups into functional gameplay
• Optimize performance for mobile and desktop browsers
• Integrate game logic with backend APIs
• Ensure cross-browser compatibility and responsiveness
• Debug and resolve performance or rendering issues
• Participate in code reviews and contribute to technical architecture decisions

🛠 Required Skills & Qualifications

• Minimum 2+ years of experience in front-end or HTML5 game development
• Strong proficiency in TypeScript
• Hands-on experience with PixiJS for 2D rendering
• Solid experience using GSAP for advanced animations and transitions
• Good understanding of object-oriented programming and game architecture
• Experience optimizing performance for browser-based games
• Familiarity with asset management and sprite sheets
• Experience with Git or other version control systems
• Strong problem-solving skills and attention to detail

Location: Remote / Office (optional)
Company: WTT Solutions
Project: Long-term product for our US-based client

About the Project

WTT Solutions is an innovative and rapidly growing development company specializing in modern JavaScript / TypeScript-based frameworks — React, Angular, Node.js.

We are currently looking for an Angular Developer to join a long-term product project of our trusted client from the United States. The product is actively evolving, and you will have the opportunity to directly influence technical decisions and product improvements while working in an international environment.

Required Skills

— 2+ years of commercial experience with Angular (v10+)
— Strong knowledge of TypeScript
— Solid understanding of ES5 / ES6+
— Strong JavaScript fundamentals
— Good knowledge of HTML & CSS
— English level: Intermediate or higher (ability to communicate with native speakers)

Responsibilities

— Participation in software design and development
— Providing accurate time estimations for tasks
— Delivering high-quality and timely solutions
— Close collaboration with designers and other developers
— Active participation in Scrum processes

We Offer

— Work on an exciting long-term US product
— Competitive salary
— Clear project processes (Scrum, well-defined tasks, structured workflow)
— Official employment (“white” scheme)
— Supportive, experienced, and friendly team
— Opportunity for professional growth and skill development

If you are passionate about building high-quality front-end solutions and want to grow within an international product environment — we would be happy to meet you 🚀

Description

Project Description
The primary goal of this initiative is to design and deploy a cloud-based Generative AI system. This advanced solution is tailored to significantly enhance code documentation processes in alignment with the European Railway Traffic Management System (ERTMS) standards. By leveraging the capabilities of Generative AI, the system aims to substantially improve the readability and accuracy of code documentation, ensuring it is comprehensive, easily understandable, and meticulously annotated.

Description
As a Python Developer, specializing in Python and Generative AI, you will play a pivotal role in advancing our cutting-edge Gen-AI initiatives. Your primary responsibility will be the development and enhancement of a cloud-based Generative AI application, designed to optimize and refine our codebase and documentation processes.

#LI-IN1

Requirements

Essential Skills (Must Have)
Python Internals & Asyncio: Deep proficiency in Python 3.11+ with a strong focus on asyncio.
Demonstrated ability to write non-blocking code and debug race conditions or deadlocks.
Experience optimizing high-throughput web applications (profiling, memory management, reducing latency).
API Development: Expertise in FastAPI (Pydantic models, dependency injection, middleware).
Azure Cloud Native (or experience with similar tools):
Azure Service Bus for async orchestration.
Azure Blob Storage for file management.
Azure Web PubSub for real-time streaming.
Containerization & Orchestration:
Proficiency with Docker and Docker Compose for local development workflows.
Experience managing and deploying services to Azure Kubernetes Service (AKS).
GenAI Integration: Practical experience with Azure OpenAI APIs.
Understanding of RAG flows, context window management, and embeddings.
Database: Proficient in PostgreSQL (mostly though SQLAlchemy/Alembic).
Experience designing efficient schemas and optimizing SQL queries.
Observability & Monitoring: Hands-on experience with observability tools such as OpenTelemetry and Prometheus for distributed tracing, metrics collection, and performance monitoring in microservices environments.
Nice to Have
Experience with LangChain.
Understanding of CI/CD pipelines (mostly Azure DevOps).

Job responsibilities

Key Technical Responsibilities
Async Microservices: Architect and maintain high-performance REST APIs using FastAPI. Manage communication between multiple services.
RAG Optimization: Implement and refine Retrieval-Augmented Generation strategies for per-user knowledge bases.
Event-Driven Architecture: Apply core event-driven concepts and use Azure Service Bus to schedule and offload time-consuming jobs.
Real-Time Sockets: Manage Azure Web PubSub for streaming tokens and chat responses.
Deployment: Manage local development environments using Docker Compose and production deployments via Azure Kubernetes Service (AKS).

Description

GlobalLogic is searching for a motivated, results-driven, and innovative software engineer to join our project team at a dynamic startup specializing in pet insurance. Our client is a leading global holding company that is dedicated to developing an advanced pet insurance claims clearing solution designed to expedite and simplify the veterinary invoice reimbursement process for pet owners.

You will be working on a cutting-edge system built from scratch, leveraging Azure cloud services and adopting a low-code paradigm. The project adheres to industry best practices in quality assurance and project management, aiming to deliver exceptional results.

We are looking for an engineer who thrives in collaborative, supportive environments and is passionate about making a meaningful impact on people’s lives. If you are enthusiastic about building innovative solutions and contributing to a cause that matters, this role could be an excellent fit for you.

Requirements

• 6+ years of software development experience with the .NET platform (ASP.NET Core, C#)
• Strong experience building and consuming REST APIs (OpenAPI, FluentValidation)
• Knowledge of OAuth 2.0 flows is a plus
• At least 2+ year of proven experience with Azure Cloud services (Service Bus, Azure Functions, CosmosDB)
• Hands-on experience with front-end development in React (TypeScript, state management)
• Hands-on experience with adaptive design
• Solid understanding of client-server application design and asynchronous programming
• Experience with CI/CD pipelines in Azure DevOps or equivalent tools
• Knowledge of containerization (Docker, Kubernetes) is a strong plus
• Familiarity with low-code/no-code integrations (Power Apps, Power Automate) is desirable
• Experience with Azure ML/AI services, document recognition, or data-driven workflows is an advantage
• Proficiency in debugging, refactoring, and clean code design
• Strong analytical skills with ability to ramp up quickly in new domains
• Good written and verbal communication skills in English (Upper-Intermediate+)

Job responsibilities

• Design and implement cloud-native applications leveraging Azure Functions, Service Bus, and CosmosDB
• Develop front-end applications in React, ensuring responsive UI and seamless integration with back-end services
• Build and maintain microservices and APIs that integrate with multiple systems, including D365 and data platforms
• Collaborate with stakeholders to define and negotiate API contracts and ensure reliable system integrations
• Implement data processing and workflow services with a focus on scalability, performance, and resilience
• Contribute to the design of low-code solutions integrating Azure ML/AI services for automation (e.g., document recognition, intelligent data extraction)
• Participate in planning, estimation, and architecture discussions, providing technical guidance
• Debug and resolve issues of various complexities across the stack
• Work closely with DevOps and QA to ensure CI/CD pipelines, automated testing, and deployment processes are efficient and robust
• Follow coding standards and contribute to continuous improvement initiatives within the development team

Project: Rental Marketplace

Requirements:
3+ years of experience with Golang
English: В2+ (must have)
Start: ASAP

We offer:

• Cooperation with a stable company with well-established processes and a positive atmosphere
• Experience in project management of different levels of complexity, methodology, and approaches
• Flexible schedule: Mon-Fri (8 hours a day)
• 18 days of paid vacation; 15 days sick leave
• A decent level of remuneration with regular reviews of the results of cooperation
• Extensive loyalty program 

About Project: AI-Powered Jigsaw Puzzle Game
Approach: Milestone-based development, starting simple and adding complexity in phases.

Experience: Mobile developer with background in entertainment apps or games (more critical than specific tech stack). Should be highly proficient with AI-assisted development tools (Cursor, Claude, etc.) and comfortable having 90%+ of code AI-generated.

Nice to Have: Familiar with game-like animations and UI patterns for puzzle games.
Experience integrating with AI image generation APIs for real-time processing.

Tech: React Native preferred but open to other mobile frameworks.

English level - Upper intermediate
 

We’re looking for a highly experienced Senior Full-Stack Developer with a strong frontend orientation, who can take ownership of complex, data-driven features end-to-end. This role is perfect for a senior, independent engineer who learns quickly, thrives in a fast-paced startup environment, and feels confident taking full responsibility for delivering high-impact work.

You’ll join a small, high-impact engineering team building a modern FinOps platform used by enterprise customers worldwide. The ideal candidate enjoys creating sophisticated user interfaces, deeply understands modern frontend architecture, and is also comfortable contributing to backend and server-side development when needed.

Responsibilities

• Designing and developing advanced UI features and dashboards (React + JavaScript / TypeScript)
• Working with complex flows, graphs, visualizations, and large-scale data interactions
• Owning features end-to-end: design, architecture, implementation, testing, deployment
• Working across the stack: primarily frontend, with meaningful backend and server-side work
  Building and maintaining server-side logic, APIs, and integrations as part of the feature lifecycle
• Collaborating closely with product, backend, and data teams on requirements and solutions
  Troubleshooting bugs and performance issues (roughly 50% of the workload over time)
• Working in cloud-native environments (AWS)
• Using AI-assisted development tools to improve productivity and quality
• Contributing to code quality, performance, scalability, and maintainability

Requirements

• 6+ years of hands-on development experience 
• Strong expertise in React + JavaScript / TypeScript
• 2+ years of experience building backend APIs and processes using Python
• Proven experience delivering complex, data-heavy UI features
• Deep understanding of frontend architecture, state management, and performance
• Experience working with complex graphs, charts, and visualizations
• Solid backend and server-side experience (APIs, services, data flows)
• Experience working with databases (e.g., DynamoDB, BigQuery, SQL/NoSQL)
• Experience working in a full AWS environment
• Strong communication skills in English
• Independent, detail-oriented, fast learner with strong ownership mindset
• Experience in B2B SaaS or data-centric products
• Experience with AI-assisted development tools
• Familiarity with cloud-native architectures and distributed systems

Who you are

• A senior engineer who can pick up complex tasks quickly
• Someone who learns independently and doesn’t need constant guidance
• A proactive problem-solver with strong attention to detail
• A clear communicator who works well in a remote setup
• Someone who cares about user experience, performance, and clean code
• Comfortable balancing new feature development with ongoing bug fixes

What we offer

• Competitive salary and benefits package
• Medical insurance
• Full Remote
• Collaborative and innovative work environment
• Career growth and development opportunities
• A chance to work with a talented and driven team of professionals

About the project

The company delivers a cloud cost optimization platform that helps companies track, analyze, and reduce their cloud spending. It provides full visibility into resource usage, identifies waste, and offers actionable recommendations to improve efficiency. The platform enables teams to control costs, forecast budgets, and make data-driven decisions about their cloud infrastructure.

About the Role

We are seeking a strong Software Developer to join our team working on Receptor AI Web, a cutting-edge molecular visualization and drug discovery platform. You will primarily work on our React/TypeScript frontend, with opportunities to contribute to the full-stack architecture.

Key Responsibilities

  - Develop and maintain frontend features using React and TypeScript

  - Work with 3D molecular visualization using NGL library

  - Integrate with RESTful APIs for chemical compound data

  - Optimize performance for large datasets and real-time rendering

  - Debug and refactor existing codebase for better maintainability

Required Qualifications

  - Bachelor's degree in Computer Science, Software Engineering, or related field (or equivalent experience)

  - 1.5+ year of professional software development experience

  - Strong programming skills in JavaScript/TypeScript

  - Solid understanding of React hooks and modern React patterns

  - Experience with state management solutions (Redux preferred)

  - Proficiency with version control systems (Git)

  - Good problem-solving skills and attention to detail

  - Ability to work both independently and as part of a team

  Preferred Qualifications

  - 3D Graphics/Visualization - Experience with WebGL, Three.js, or scientific visualization libraries

  - Chemistry/Biology background.

  - Data Visualization - Experience with Chart.js, D3.js, or similar libraries

  - Backend knowledge - Familiarity with Python, or API development

  - Familiarity with testing frameworks (Jest, Vitest, React Testing Library)

  - Knowledge of responsive design and cross-browser compatibility

  - Understanding of performance optimization techniques

  - Experience with scientific or data-intensive applications

About the Role

We are seeking a motivated Software Developer to join our team working on innovative bioinformatics and computational biology projects. You will primarily work on our core backend services and microservices architecture, with opportunities to contribute across the full stack.

Key Responsibilities

- Develop and maintain backend microservices using Python (FastAPI/Flask)

- Work with biological data processing pipelines and proteomics workflows

- Implement RESTful APIs and integrate with various data sources

- Collaborate on database design and optimization (PostgreSQL, SQLAlchemy)

- Participate in code reviews and contribute to technical documentation

- Debug and optimize existing codebase for performance and reliability

Required Qualifications

- Bachelor's degree in Computer Science, Software Engineering, or related field (or equivalent experience)

- 1+ year of professional software development experience

- Strong programming skills in Python

- Understanding of RESTful API design principles

- Experience with version control systems (Git)

- Basic knowledge of SQL and relational databases

- Good problem-solving skills and attention to detail

- Ability to work both independently and as part of a team

Preferred Qualifications

- Biology/Bioinformatics background - Understanding of molecular biology, proteomics, or computational biology concepts

- Frontend experience - Familiarity with React, TypeScript, and modern web development

- Machine Learning knowledge - Experience with ML frameworks (scikit-learn, TensorFlow, PyTorch)

- DevOps understanding - Knowledge of CI/CD pipelines, containerization, and deployment practices

- Experience with microservices architecture

- Familiarity with Docker and containerization

- Knowledge of asynchronous programming (asyncio)

- Understanding of data processing pipelines

- Experience with scientific computing libraries (NumPy, Pandas)

What We Offer

- Opportunity to work on cutting-edge bioinformatics projects

- Mentorship from experienced developers

- Cross-functional exposure (backend, frontend, ML, biology, DevOps)

- Professional development opportunities

- Collaborative and learning-focused environment

We’re looking for an experienced Ruby on Rails Developer who enjoys building reliable, user-centric web applications and taking ownership of meaningful technical challenges. In this role, you’ll work on a mature product, collaborate closely with a skilled and supportive team, and have real influence on both technical decisions and product evolution.
 

Your Background

• Proven experience in building and maintaining web-based applications
• 5+ years of hands-on experience working with Ruby on Rails, Stimulus, Vue.js, PostgreSQL, and Linux-based servers
• A collaborative mindset - you enjoy working closely with others and contributing as part of a team
• Strong written and verbal communication skills in English and/or German
• Comfortable taking ownership and responsibility, seeing it as a chance to grow rather than a source of pressure

• Genuine interest in understanding the needs, challenges, and perspectives of both users and clients

   

Our Technical Stack

• Backend: The core of our product is built with Ruby on Rails, primarily using server-side rendering
• Frontend: Vue.js is used for selected components, with Turbo and Stimulus planned for future enhancements
• Database & Caching: PostgreSQL for persistent data storage and Redis for caching
• Infrastructure & Deployment: Applications run on Ubuntu Linux virtual machines, deployed using Capistrano, with a planned migration to Kamal 2
• Development Tools: RubyMine is the main IDE used by the team
• Version Control & Code Review: GitLab for source control, merge requests, and reviews

• Team Communication: Slack is our primary communication platform

   

What You Can Expect

• Working on and evolving a modern, user-focused product
• Improving existing functionality while contributing to new features and development initiatives
• The opportunity to influence processes, product direction, and infrastructure growth
• Participation in annual developer retreats
• Dedicated time and support for your professional growth and learning

We’re looking for a proactive, team-oriented and motivated Full Stack Engineer (WordPress / React) who will be responsible for both back-end and front-end development, including creating custom WordPress themes and plugins.

You’ll work closely with partners and stakeholders, participate in architecture decisions, and contribute to building scalable and reusable solutions from scratch.

Responsibilities

• Communication & coordination with partners and clients
• Participation in planning, architecture, and technical evaluation
• Application architecture and design
• Auditing and analyzing project documentation and specifications
• Setting up project core structure from scratch
• Maintaining and improving ongoing projects
• Developing and maintaining reusable components
• Driving an agile development process within the team
• Building responsive WordPress themes and custom plugins
• Creating custom Gutenberg blocks

Requirements

• 5+ years of commercial experience in web development
• Strong experience with WordPress (including headless WordPress)
• Solid knowledge of PHP and OOP principles
• Experience in developing custom WordPress themes and plugins
• 5+ years of experience with JavaScript (React.js, jQuery)
• Experience creating Gutenberg blocks from scratch
• Experience with Advanced Custom Fields (ACF)
• Strong knowledge of HTML, CSS3, and responsive development
• Experience working with APIs
• Good understanding of REST principles and RESTful services
• Experience with Git
• Upper-Intermediate or higher English

Nice to have

• Experience with JavaScript or PHP frameworks (Angular, Vue.js, Symfony, Laravel, etc.)
• Experience with Docker
• Experience with MVC-based WordPress frameworks (Lumberjack, Sage, Themosis, TypeRocket, etc.)