Jobs Developers

2277
  • Β· 156 views Β· 92 applications Β· 2d

    Founding Full-Stack Engineer β€” Fintech/Crypto Trading Platform

    Full Remote Β· Worldwide Β· 4 years of experience Β· English - B1
    About the Product We’re building a web3 platform focused on crypto options trading. It's like building an exchange from scratch. The product operates in a real-time environment where market data, user actions, and financial state must stay consistent...

    About the Product

     

    We’re building a web3 platform focused on crypto options trading. It's like building an exchange from scratch.

     

    The product operates in a real-time environment where market data, user actions, and financial state must stay consistent and reliable at all times. We work with live trading flows, user balances, deposits and withdrawals, and systems where correctness and trust are critical.

     

    At the same time, we’re an early-stage startup β€” small team, fast iterations, and product decisions driven by user value rather than process.

     

    This is a high-responsibility environment where engineering quality, speed, and product thinking matter equally.

     

     

     

    The Role

     

    We’re looking for a highly autonomous Full-Stack Engineer to own the entire platform layer outside of the trading engine.

     

    You will be the solo full-stack owner of everything related to the user-facing system:

     

    • Web application and UI
    • Authentication and account flows
    • Deposits, withdrawals, balances
    • User dashboards, analytics, and statistics
    • Product features and UX improvements

     

    This role requires strong product thinking, architectural ownership, and the ability to move fast with minimal supervision.

     

     

     

    Tech Stack & Environment

     

    • React / Next.js (TypeScript)
    • Nest.js
    • WebSockets (real-time data)
    • REST APIs
    • PostgreSQL
    • Docker
    • Direct work with VPS servers
    • CI/CD pipelines (self-managed)

     

     

    You will be responsible not only for development, but also for:

     

    • Deploying and debugging your services
    • Setting up and maintaining CI/CD
    • Monitoring and fixing production issues
    • End-to-end ownership of your features

     

     

     

    AI-First Development

     

    We actively use AI in development.

    You’ll be working with tools like Cursor/Claude Code.

     

    The expectation is that you are comfortable using AI to move faster, explore solutions, and improve productivity.

     

     

     

    What You’ll Work On

     

    • Building high-quality product features end-to-end
    • Working with real-time market and user data
    • Designing systems that handle money safely and consistently
    • Ensuring correctness of balances, transactions, and financial logic
    • Creating polished UI with strong attention to detail, animations, and UX
    • Integrating analytics, tracking, and product metrics
    • Participating in product planning and decision-making

     

    We are user-first.

    Consistency, reliability, and trust are critical β€” this is a financial product.

     

     

     

    What We’re Looking For

     

     

    • 4+ years of full-stack experience
    • Strong React / Next.js / TypeScript
    • Solid backend experience (Nest.js)
    • Strong understanding of PostgreSQL and data modeling
    • Experience working with WebSockets or real-time systems
    • Ability to design architecture and own systems independently
    • Comfortable working directly with servers, Docker, and deployments
    • Experience setting up and maintaining CI/CD
    • Strong debugging skills across the full stack

     

     

    Mindset matters more than tools:

     

    • Startup experience or comfort in fast-moving environments
    • Product mindset β€” you care about user experience and outcomes
    • High autonomy β€” you don’t wait for detailed instructions
    • Ability to make pragmatic decisions quickly
    • Strong code quality standards and engineering taste
    • Ability to quickly understand and work with existing code
    • Willingness to jump into critical issues when needed

     

     

     

    Why This Role Is Interesting

     

    • Founding engineer position with high product ownership
    • Strong growth opportunity through direct mentorship and hands-on architecture work
    • Direct impact on how the platform looks and works
    • Minimal bureaucracy, fast decision cycles
    • Work directly with the CTO and a small, strong engineering team
    • Opportunity for future equity/options
    • Real product challenges: real-time systems, financial accuracy, production ownership

     

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  • Β· 47 views Β· 6 applications Β· 2d

    Senior Backend Developer (Python)

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 5 years of experience Β· English - C1
    We are looking for a highly motivated and experienced Senior Backend Engineer (Python) to join our Streaming engineering team. In this role, you’ll help build and evolve a modular, high-scale real-time transcription platform, designed to handle live audio...

    We are looking for a highly motivated and experienced Senior Backend Engineer (Python) to join our Streaming engineering team. In this role, you’ll help build and evolve a modular, high-scale real-time transcription platform, designed to handle live audio and video streams across a wide range of connection typesβ€”from browser-based streaming to professional broadcast protocols and dedicated encoding hardware.

     

    You’ll work on the core systems that power Verbit’s real-time speech-to-text capabilities, serving customers across media, education, and legal domains. The role combines deep backend engineering, real-time systems, and cloud-native architecture, with a strong focus on scalability, reliability, and low-latency performance.

     

    The Streaming team is part of our R&D organization and works closely with Product, Research, Data Science, and Operations to deliver production-grade solutions used in mission-critical, live environments.

     

    As a Senior Backend Developer, you will:

    Β· Build and evolve Python backend services for real-time transcription

    Β· Design and maintain low-latency systems that process, enrich, and route live audio and transcription data

    Β· Work with multiple connection methods, from browser clients to professional broadcast protocols and hardware encoders

    Β· Own services end to end, from design to production

    Β· Collaborate closely with Product, Research, Data Science, and Engineering

    Β· Leverage AI-assisted development tools to improve delivery speed and code quality

     

    If you want to join our journey, you’ll need:

    Β· 5+ years of experience as a backend engineer, with strong focus on Python

    Β· Solid experience building production-grade Python services

    Β· Experience designing and operating scalable, distributed systems in cloud environments (AWS preferred)

    Β· Hands-on knowledge of async processing, concurrency, and event-driven architectures

    Β· Experience working with real-time data flows and service-to-service APIs

    Β· Comfort owning services in production, including monitoring, debugging, and performance tuning

    Β· Fluent English, both spoken and written

     

    It will be even better if you have:

    Β· Experience with real-time audio/video or streaming-related protocols (e.g. WebSockets, RTMP, SRT)

    Β· Familiarity with speech, media, or data enrichment pipelines

    Β· Experience integrating with hardware or external systems (encoders, SDKs, third-party services)

    Β· Practical use of AI-assisted development tools in day-to-day engineering work

    Β· Experience working in a remote or distributed team environment

     

    What makes Verbit unique?

    Verbit’s global team is united in its mission: to make all verbal information and experience accessible, insightful, and useful. Powered by our award-winning AI technology, Verbit helps businesses, organizations, and individuals of all sizes make words workβ€”whether it’s a legal deposition, a content creator’s latest campaign, or a major global event. With a global network of human experts and a continually evolving proprietary AI engine, Verbit ensures exceptional results while scaling to meet any need. We're building a world in which all speech can be seamlessly converted into meaningful actions. Join us from our offices across the United States, Canada, Israel, and Europe.

     

    Do you have Verbit DNA?

    Verbit’s people are committed to β€œwinning together” through constant collaboration to have an impact on the world. They share a β€œdo good” mentality and apply it daily in their work.

    We’re a group of:

    Β· Tech-savvy individuals who are always open to growth and learning

    Β· Adaptable and flexible people who thrive in a fast-paced environment

    Β· Creative minds who rethink and question how to outperform past results

    Β· Effective communicators who can promote and represent Verbit’s tech and brand

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  • Β· 97 views Β· 16 applications Β· 2d

    iOS Developer

    Ukraine Β· 1 year of experience Β· English - A1
    Hi! We are looking for a highly motivated iOS Developer, to join our fast-growing team. We are eager and creative professionals, who like challenges. If you like it too, don’t hesitate, join us! Key Responsibilities: Develop and maintain iOS...

    Hi! We are looking for a highly motivated iOS Developer, to join our fast-growing team. We are eager and creative professionals, who like challenges.

    If you like it too, don’t hesitate, join us!

     

    Key Responsibilities:

    • Develop and maintain iOS applications for our clients.
    • Participate in the full development cycle, including requirements analysis, design, development, testing, and deployment.
    • Optimize applications to achieve the best performance and efficiency.

       

    Requirements:

    • Education in computer science, programming, or a related field.
    • Understanding of basic iOS application development principles and proficiency in Swift.
    • Basic knowledge of object-oriented programming (OOP) and design patterns.
    • Experience with iOS development tools such as Xcode, Interface Builder, and other auxiliary tools.
    • Ability to work in a team and communicate effectively.
    • Ability to quickly learn and apply new concepts and technologies.
    • Knowledge of Swift design principles, Cocoa Touch, SwiftUI, and OOP.
    • Experience working with native libraries like UIKit and Core.
    • Understanding and practical experience in navigation and routing in applications.
    • Understanding of Apple's user interface design principles, human interface guidelines, and patterns is mandatory.
    • Understanding of REST APIs and WebSockets.
    • Understanding and experience with OAuth.
    • Understanding of MVP, MVC, MVVM, and Dependency Injection principles.
    • Understanding of the full mobile development lifecycle, including code signing and submission to the App Store.
    • Understanding of how to publish and maintain one or more iOS apps in the App Store.
    • Strong analytical and problem-solving skills.
    • Understanding of reactive programming paradigms (Combine, RxSwift).
    • Understanding of DeFi.
    • Understanding of in-app payment integration.
    • Understanding of mobile application architecture.
    • Understanding of dynamic runtime environments.

    We Offer:

    • Competitive salary.
    • Flexible working hours and the ability to work remotely (one day per week).
    • Working hours: 09:00 β€” 18:00.
    • Paid vacations and sick leave.
    • Comfortable office environment.
    • Corporate events.
    • Cozy and friendly working environment.
    • Opportunities for professional growth and self-development.
    • Coffee, cookies, etc.

       

    If you are eager to work in an innovative environment, we would be delighted to welcome you to our team. Thank you for your interest in the vacancy at ELDEVELOP.

    More
  • Β· 64 views Β· 19 applications Β· 2d

    Middle Golang developer

    Full Remote Β· Worldwide Β· Product Β· 2 years of experience Β· English - B2
    We're looking for a Go developer to build new features and microservices for the platform. Responsibilities Develop new features and microservices in Go Write unit and integration tests Participate in code reviews Maintain and improve existing...


    We're looking for a Go developer to build new features and microservices for the platform.

     

    Responsibilities

    • Develop new features and microservices in Go
    • Write unit and integration tests
    • Participate in code reviews
    • Maintain and improve existing codebase
    • Work with databases (PostgreSQL, Redis)
    • Integrate with other services (REST API, gRPC)

     

    Required Skills

    • 2+ years of commercial experience with Go
    • Knowledge of Go web frameworks
    • Experience with PostgreSQL (writing queries, basic migrations)
    • Experience with Redis (caching)
    • Understanding of Clean Architecture principles
    • Experience writing tests (testify)
    • Basic experience with Docker
    • Basic experience with GCP

     

    Nice to Have

    • Experience with Cassandra, MongoDB or other NoSQL databases
    • Experience with message brokers (Kafka, RabbitMQ)
    • Knowledge of OpenTelemetry or other observability tools
    • Experience with Kubernetes (GKE)
    • Experience with JWT / OAuth 2.0
    • Experience with gRPC

     

    Tech Stack

    • Go 1.22+, pgx
    • PostgreSQL, Redis
    • Docker, Kubernetes (GKE)
    • GitLab CI/CD
    • GCP (Cloud Storage, Cloud SQL, etc.)
    • OpenTelemetry

     

    Benefits

    • Competitive salary based on experience and skills
    • 20 paid vacation days
    • Sick leaves: unlimited with medical certificate, up to 5 paid days per year without certificate
    • Healthy work–life balance
    • Family-first culture
    • Flexible work schedule
    • Professional growth and development opportunities
    More
  • Β· 36 views Β· 3 applications Β· 2d

    Middle / Senior Drupal Developer (DevOps Knowledge)

    Full Remote Β· Worldwide Β· 2.5 years of experience Β· English - C1
    Client Location: Brussels Employment type: Full-time About the Role We are looking for a skilled Drupal Developer who is ready to take on technically challenging projects and contribute to building modern digital platforms and web applications. You...

    Client Location: Brussels 
    Employment type: Full-time

     

    About the Role

    We are looking for a skilled Drupal Developer who is ready to take on technically challenging projects and contribute to building modern digital platforms and web applications.

     

    You will work within a multidisciplinary team delivering high-quality solutions for a diverse portfolio of clients: from established international organizations to fast-growing innovative companies. The role combines strong back-end Drupal development with collaboration across design, strategy, and development teams to create impactful digital experiences.

     

    This is an environment where engineering quality matters: automated testing, code reviews, CI/CD practices, and Agile ways of working are integral to daily development.

     

    Your Responsibilities

    • Develop and maintain websites and web applications using Drupal 10+
    • Participate in both technical projects and full-service digital initiatives
    • Collaborate closely with developers, designers, project managers, and product stakeholders
    • Contribute to architecture decisions and technical improvements
    • Ensure code quality through testing, optimization, and peer reviews
    • Work within Agile/Scrum development processes
    • Support deployment and DevOps-related activities

     

    Required Skills & Experience

    • Strong experience with Drupal 10+
    • Experience with Git-based workflows
    • Understanding of CI/CD pipelines
    • Experience working in Agile/Scrum teams
    • Strong collaboration and communication skills
    • Professional English communication skills

     

    Nice to Have

    • Experience with headless Drupal architectures
    • API integrations (REST, JSON:API, GraphQL)
    • DevOps or cloud environment experience
    • Docker containerization
    • Basic JavaScript knowledge
    • Experience integrating Drupal with external services (search engines, caching systems, etc.)

     

    What You’ll Get

    • Opportunity to work on diverse and technically engaging projects
    • Collaborative environment with experienced multidisciplinary teams
    • Strong engineering culture focused on quality and innovation
    • Continuous learning opportunities and professional development support
    • Space to contribute ideas and grow your technical expertise
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  • Β· 11 views Β· 0 applications Β· 2d

    Senior Kotlin developer

    Full Remote Β· EU Β· 5 years of experience Β· English - B2
    Approximate start: 23.02.2026 Candidate profile: Senior Kotlin developer, 5+ years of commercial experience; background in fintech/payment/banking; English B1+; EU-based. Core skills: Kotlin, Spring Boot, REST, JSON, HTTP, microservices, Apache...

    Approximate start: 23.02.2026

    Candidate profile: Senior Kotlin developer, 
    5+ years of commercial experience; 
    background in fintech/payment/banking; 
    English B1+; 
    EU-based.

    Core skills: Kotlin, Spring Boot, REST, JSON, HTTP, microservices, Apache Camel/Kafka, SQL & NoSQL (PostgreSQL, MongoDB), Elasticsearch, Redis, Temporal, CI/CD (GitHub Actions/Jenkins/GitLab CI), AWS/GCP, Docker, Kubernetes, security (OAuth2/JWT/HTTPS), testing (JUnit, Mockito, Testcontainers), event‑driven architecture.

    Location: EU

    More
  • Β· 37 views Β· 0 applications Β· 2d

    Senior Delphi Software developer with C#

    Hybrid Remote Β· Ukraine Β· Product Β· 5 years of experience Β· English - B2
    About us 3Shape develops 3D scanners and software solutions that enable dental and hearing professionals to treat more people, more effectively. Our products are market leading innovative solutions that make a real difference in the lives of both patients...

    About us

    3Shape develops 3D scanners and software solutions that enable dental and hearing professionals to treat more people, more effectively. Our products are market leading innovative solutions that make a real difference in the lives of both patients and dental professionals around the world.

    3Shape is headquartered in Copenhagen, with development teams in Denmark, Ukraine, North Macedonia and with a production site in Poland.

    We are a global company with presence in Europe, Asia and the Americas. Founded in a year 2000, today, we provide services to customers in over 130 countries. Our growing talent pool of over 2200 employees spans 50 nationalities.

    3Shape as an employer is committed to Ukraine. Our UA office was founded in 2006, and we are continuing to grow, hire and take care of our employees even during the war in Ukraine. Among other actions, we support our contractors who are called to the military service, as well as care about our colleagues’ mental health by implementing different activities.

    About the role:

    We are looking for an experienced Delphi Software Developer to develop 3Shape’s CAD software. You will ease the daily work of dental technicians and dentists, supporting them in providing better patient treatments. Our product supports millions of users within the Labs and Clinics all over the world.

    You will join a highly skilled and motivated team that works with CAD and complex 3D algorithms, OpenGL, AI integration, etc. 

     

    Areas of responsibility:

    • Design user interface, algorithms, and implement workflows for dentistry
    • Ensure high code quality through reviews, refactoring, processes, code metrics, etc.
    • Ensure high maintainability of the code (e.g., through designing and implementing automatic tests)
    • Cooperate with developers on other projects
    • Develop the coolest 3D Windows desktop application

     

    To succeed in your role, you should possess the following skills and competencies:

    • 3+ years of experience as a software developer with Delphi
    • Solid experience with design patterns and OOP principles
    • Good mathematical understanding
    • Interest in 3D and computational geometry
    • Ability to quickly familiarize yourself with the existing code base
    • You work with high commitment and take ownership of your work
    • Team-minded personality with skills in Agile working style
    • Degree in Computer Science, Engineering, or a similar field
    • At least Intermediate level English, verbal, and written

     

    Being part of us means:

    • Meaningful work that helps to change the future of dentistry
    • Work in a unique professional, friendly and supportive environment
    • Constant professional growth and development
    • A healthy work-life balance
    • Comprehensive benefits incl. 24 working days of annual vacation; medical insurance; paid sick leaves and child sick leaves; maternity and paternity leaves etc
    • Breakfasts and lunches in the office
    • Good working conditions in a comfortable office in UNIT.City
    • A parking lot with free spaces for employees
    • Occasional business trips to Western Europe
    • Opportunity to become a part of the success that 3Shape has created over the past 25 years.

     

     


     

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  • Β· 125 views Β· 33 applications Β· 2d

    Python Engineer

    Full Remote Β· Countries of Europe or Ukraine Β· 1 year of experience Β· English - B2
    We are looking for a Python Engineer who is excited about building intelligent systems and working with AI-powered solutions. Requirements: - Strong understanding of OOP principles - Experience with REST APIs and backend architecture -Experience with...

    We are looking for a Python Engineer who is excited about building intelligent systems and working with AI-powered solutions. 
     

    Requirements:

    - Strong understanding of OOP principles

    - Experience with REST APIs and backend architecture

    -Experience with frameworks such as FastAPI / Django / Flask

    - Good understanding of databases (PostgreSQL, MySQL)

    - Experience working with Git

    - Upper-Intermediate level of English
     

    Responsibilities:

    - Develop and maintain backend services in Python

    - Integrate third-party APIs and AI services

    - Design scalable and clean architecture solutions

    - Optimize performance and ensure code quality

    - Collaborate with product and technical teams
     

    Would be a plus:

    - Experience with AI tools and LLM integrations

    - Hands-on experience with OpenAI API, Gemini API, or other LLM providers

    - Understanding of prompt engineering and AI workflow orchestration

    - Experience with vector databases or embeddings

    - Familiarity with automation tools or workflow platforms

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  • Β· 374 views Β· 49 applications Β· 2d

    Team Lead Python/Django

    Full Remote Β· Countries of Europe or Ukraine Β· 5 years of experience Β· English - B2
    We are seeking a highly skilled and experienced Team Lead Python/Django to join our dynamic team. As a Team Lead, you will be an expert and a leader, playing a crucial role in guiding the development team, making technical decisions, and ensuring the...

    We are seeking a highly skilled and experienced Team Lead Python/Django to join our dynamic team.

     

    As a Team Lead, you will be an expert and a leader, playing a crucial role in guiding the development team, making technical decisions, and ensuring the successful delivery of high-quality software products.

     

    Skills Requirements:

    β€’ 5+ years of experience with Python 3.4+;

    β€’ 4+ years of experience with Django/DRF and RESTful APIs;

    β€’ Experience working with relational and NoSQL databases (PostgreSQL, MongoDB, etc.);

    β€’ Familiarity with Elasticsearch;

    β€’ Knowledge of cloud solutions: AWS, GCP, Azure;

    β€’ Experience in multithreading/multiprocessing approaches;

    β€’ Proven experience in supporting and developing existing high-load projects;

    β€’ Proficiency with Docker, Kubernetes, and CI/CD pipelines;

    β€’ Previous experience in a Team Lead role;

    β€’ English proficiency β€” Upper-intermediate.

    Key responsibilities:
    β€’ Lead and manage the Backend department and development process, providing support to team members.
    β€’ Develop and contribute to Backend Architecture.
    β€’ Participate in pre-sale activities
    β€’ Participate in decision-making processes related to design architecture, solution development, architectural, and code reviews.
    β€’ Write clean, well-structured, and maintainable code while maintaining high coding standards within the team.
    β€’ Develop high-load solutions and conduct R&D work with new technology.

    Optional skills (as a plus):

    β€’ Experience with Celery;

    β€’ Experience with payment systems integrations.

     

    We offer:

    β€’ Great networking opportunities with international clients, involving challenging tasks;

    β€’ Involvement in building interesting projects from scratch using new technologies;

    β€’ Personal and professional development opportunities

    β€’ Competitive salary fixed in USD;

    β€’ Paid vacation and sick leaves;

    β€’ Flexible work schedule;

    β€’ Friendly working environment with minimal hierarchy;

    β€’ Comfortable, spacious, and well-equipped office in the city center;

    β€’ Team-building activities, corporate events.

    More
  • Β· 752 views Β· 95 applications Β· 2d

    Django/DRF Developer

    Full Remote Β· Countries of Europe or Ukraine Β· 2 years of experience Β· English - B1
    Looking for a Django/DRF Developer to join the Dataforest team. If you are looking for a friendly team, a healthy working environment, and a flexible schedule β€’ you have found the right place to send your CV. Skills requirements: 2 + years of...

    Looking for a Django/DRF Developer to join the Dataforest team. If you are looking for a friendly team, a healthy working environment, and a flexible schedule β€’ you have found the right place to send your CV.

         Skills requirements:

    • 2 + years of experience with Django and it's components;
    • Experience with RESTful APIs, DRF and related libraries;
    • Experience with Celery and async task management;
    • Experience with SQL and query optimisation;
    • Experience of writing tests;
    • Able to work independently and excellent in communicating challenges and issues;
       

         Optional skills (as a plus):

    • Experience with AWS services (EC2, API Gateways, Lambda, SQS);
    • Experience with NoSQL databases (Redis, Elasticsearch, etc.);
    • Experience of end-to-end implementation for new functionality;
    • Experience with payment systems integrations (Stripe, Shopify, Recurly, Paypal, Braintree, etc.);
    • Experience with chargeback management tools (Ethoca, RDR, CDRN, etc.);
    • Understanding how to handle high load on projects;

      Key responsibilities:
    • Design, develop and maintain payment gateway and other integrations;
    • Design and develop new features and maintain existing functionality.
    • Design and develop web applications using Python/Django/Celery.
    • Design, develop and maintain RESTful APIs using Django Rest Framework (DRF).
    • Write clean and well-structured code that is easy to read and maintain;
    • Write and maintain technical documentation.
    • Write and maintain unit tests to ensure code quality.
    • Optimize and maintain the security, performance, and usability of the applications.
    • Collaborate with the PM/Frontend/DevOps/QA and others team members.

      We offer:
    • Great networking opportunities with international clients, challenging tasks;
    • Building interesting projects from scratch using new technologies;
    • Personal and professional development opportunities;
    • Competitive salary fixed in USD;
    • Paid vacation and sick leaves;
    • Flexible work schedule;
    • Friendly working environment with minimal hierarchy;
    • Comfortable, spacious and well-equipped office in the city center;
    • Team building activities, corporate events.
    More
  • Β· 94 views Β· 9 applications Β· 2d

    React/Typescript Developer (with Python)

    Full Remote Β· EU Β· 5 years of experience Β· English - B2
    Location:Germany, Poland, or Hungary We are looking for an experienced React / TypeScript Developer with solid Python backend expertise to strengthen our internal . You will play a key role in developing scalable, enterprise-grade applications within our...

    Location:Germany, Poland, or Hungary

    We are looking for an experienced React / TypeScript Developer with solid Python backend expertise to strengthen our internal . You will play a key role in developing scalable, enterprise-grade applications within our BTP (Multi Experience Platform – MXP) environment.

    In this role, you will collaborate closely with Product Owners, UX designers, and backend engineers to build high-quality, performant, and maintainable solutions that drive business value across our organization.

    β€’ Build and enhance custom-components using React and TypeScript
    β€’ Translate business requirements into component implementations
    β€’ Develop and maintain and integrate APIs and backend services using Python (e.g., FastAPI, Flask) into the frontend application.
    β€’ Provide guidance for external service providers, such as oData services or rest-API
    β€’ Develop and implement React components and functions to create compelling user interfaces.
    β€’ Collaborate with designers and Product Owners to build user interfaces based on design templates and UX guidelines.
    β€’ Ensure high code quality through code reviews, testing, and continuous improvements.
    β€’ Optimize application performance for fast and smooth user experience.
    β€’ Troubleshoot, diagnose, and resolve issues related to frontend development

    β€’ 5+ years of experience in frontend development with React
    β€’ Strong proficiency in TypeScript, JavaScript (ES6+), HTML5, and CSS3
    β€’ Solid experience in Python backend development (FastAPI, Flask, or similar)
    β€’ Experience building and integrating RESTful and/or OData APIs
    β€’ Understanding of microservices and distributed system architectures
    β€’ Experience with modern frontend tooling (Webpack, Vite, Babel)
    β€’ Proficiency with Git and collaborative development workflows
    β€’ Strong problem-solving and communication skills.
    β€’ Teamwork and the ability to effectively work in an agile development environment.
    β€’ Fluent English

    Location:Germany, Poland, or Hungary
    Required Resources: 1
    Start: 23.02.2026 !!!
    End: 31.12.2026
    Duration: 9 project months
    Workload: 100%

    More
  • Β· 60 views Β· 20 applications Β· 2d

    Senior Backend Developer (Python)

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 5 years of experience Β· English - B2
    We are looking for a Senior Backend Developer to join our Data Ops team. You will design, build, and maintain the backend systems that power our data pipelines, automation workflows, and internal tooling. This role blends deep Python expertise with...

    We are looking for a Senior Backend Developer to join our Data Ops team. You will design, build, and maintain the backend systems that power our data pipelines, automation workflows, and internal tooling. This role blends deep Python expertise with cloud-native architecture, a pragmatic approach to automation, and a growing focus on integrating AI/ML capabilities into our platform. You will work closely with data engineers, front-end developers, and product stakeholders to ship reliable, scalable software.

    Technology Stack

    Python 3.11 β€” 3.14, AWS (Lambda, ECS, S3, Step Functions, CloudWatch),
    Kubernetes, MongoDB, Redis, Apache Kafka, Pytest, GitHub Actions / Jenkins, Docker, SciPy, NumPy, pandas, scikit-learn, LLM APIs (OpenAI / Anthropic)


    Responsibilities & Duties

    β€” Architect and deliver efficient, well-documented, and highly readable backend services that set the quality bar for the team.
    β€” Design and maintain automation pipelines (CI/CD, scheduled jobs, event-driven workflows) that reduce manual effort and improve reliability.
    β€” Build lightweight internal dashboards, admin panels, or API-driven front-end components using frameworks such as React, Vue, or Streamlit to surface data and system health to stakeholders.
    β€” Integrate AI/ML models and LLM-based features into backend services, including prompt engineering, embeddings pipelines, and retrieval-augmented generation (RAG) patterns.
    β€” Dive into new technologies and product disciplines, driving innovation and staying current with the evolving AI and data engineering landscape.
    β€” Define development plans based on project requirements and ensure timely delivery while remaining flexible to changing priorities.
    β€” Oversee the stability of your services, monitoring system health, uptime, and performance post-release through observability tooling (CloudWatch, Datadog, or similar).
    β€” Lead code reviews with peers, fostering a culture of continuous improvement, knowledge sharing, and engineering best practices.


    Qualifications & Skills

    Required
    β€” 5+ years of hands-on Python development on large-scale, production systems.
    β€” Strong experience with NoSQL databases (MongoDB preferred) and ability to design performant data models.
    β€” Practical knowledge of AWS services and cloud-native design patterns.
    β€” Experience building or maintaining CI/CD pipelines, automated testing suites, and infrastructure-as-code.
    β€” Comfortable presenting ideas and technical details clearly to cross-functional teams.

    Nice to Have
    β€” Familiarity with front-end frameworks (React, Vue, or Streamlit) for building internal tools or dashboards.
    β€” Hands-on experience with AI/ML workflows: training pipelines, model serving, or integrating LLM APIs.
    β€” Knowledge of Kubernetes for container orchestration and scaling.
    β€” Experience with event-driven architectures using Kafka or similar streaming platforms.
    β€” Contributions to open-source projects or a visible engineering blog / portfolio.


    What We Offer

    β€” Working on great tech stack (app platform) with truly big data (processing 1TB every day)
    β€” Product company with a long-term vision
    β€” Project exposure and ownership that impacts our users, product, and business
    β€” Medical insurance
    β€” Sport benefit

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  • Β· 51 views Β· 8 applications Β· 2d

    Senior Node.js Engineer with MetaTrade and NinjaTrade experience

    Full Remote Β· Countries of Europe or Ukraine Β· 5 years of experience Β· English - B2
    Building a sophisticated engine that converts Natural Language instructions into executable trading scripts (MQL5 and NinjaScript). You will design the system that takes user intent (JSON), validates the trading logic, and mathematically generates...

    Building a sophisticated engine that converts Natural Language instructions into executable trading scripts (MQL5 and NinjaScript).

     

    You will design the system that takes user intent (JSON), validates the trading logic, and mathematically generates error-free C# (NinjaScript) and C++ (MQL5) source code. You don't need to be a Wall Street quant, but you must love solving complex logical puzzles and building systems that require strict data validation.

     

    Requirements:
    ● 5+ years in software development with a focus on complex logic and architecture. Strong background in backend system design, memory management, and data structures.
    ● Compiler Theory: Solid understanding of lexing, parsing, Abstract Syntax Trees (AST), and code generation principles.
    ● "Meta-Programming" Mindset: Experience building tools that generate other code, parsers, rule engines, or complex state machines.
    ● Strict Logic: You understand that "floating point math" is tricky and that "undefined defaults" cause bugs. You write defensive, deterministic code.
    ● Core Stack:  Expert proficiency working in polyglot environment: Strong C#, C++ Background: You must understand memory management, pointers, and strict typing to generate valid code for trading platforms. (NinjaScript is C# based; MQL5 is C++ based). Node.js (NestJS/TypeScript) for the overall system infrastructure. 
    ● Architecture: Ability to design systems that handle code translation and validation with high reliability.
    ● English: Intermediate Strong (technical communication is key).

    Responsibilities:
    ● NL-to-Code Conversion: Design and implement the core logic for translating natural language into functional MQL5 and NinjaScript code.
    ● System Architecture: Establish the backend architecture using our default Node.js stack for non-conversion services.
    ● Quality & Validation: Ensure the generated code is syntactically correct, secure, and optimized for trading environments.
    ● Research: Stay at the forefront of automated trading and language processing technologies.

     

    Nice to have:
    ● Trading Platform Expertise: Deep hands-on experience with MQL5 (MetaTrader 5) and NinjaScript (C#-based for NinjaTrader).
    ● Cloud & Data: Experience with AWS (Serverless, Aurora RDS, PostgreSQL, Cognito).
    ● Rust: Experience with Rust is a significant plus (especially for building high-performance conversion engines or parsers).
    ● LLM Integration: Experience working with LLMs for code generation and fine-tuning.

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  • Β· 21 views Β· 1 application Β· 2d

    C/C++ Embedded Engineer

    Full Remote Β· Ukraine Β· Product Β· 5 years of experience Β· English - B2
    Data Science UA is a service company with strong data science and AI expertise. Our journey began in 2016 with uniting top AI talents and organizing the first Data Science tech conference in Kyiv. Over the past 9 years, we have diligently fostered one of...

    Data Science UA is a service company with strong data science and AI expertise. Our journey began in 2016 with uniting top AI talents and organizing the first Data Science tech conference in Kyiv. Over the past 9 years, we have diligently fostered one of the largest Data Science & AI communities in Europe.

    About the role: 
    We're seeking a skilled C/C++ Embedded Engineer to take ownership of critical software components in client’s camera-based security devices. This role involves maintaining existing products through comprehensive debugging and bug fixing, as well as developing innovative new features.

    Responsibilities:
    - Design, develop, and maintain high-quality embedded software in C/C++ for camera-based security devices.
    - Debug and resolve complex software, hardware, and network connectivity issues across the entire software stack.
    - Develop new features and improve existing codebases for the product line.
    - Optimize software performance for resource-constrained embedded environments.
    - Conduct code reviews and provide technical mentorship to team members.
    - Participate in architecture discussions and technical decision-making processes.
    - Collaborate with QA teams to develop comprehensive testing strategies.
    - Document software designs, APIs, libraries, and troubleshooting procedures.

    Requirements:
    - At least 5+ years of commercial experience in embedded development, with expertise in C/C++ (C++17 standard) and deep knowledge of RTOS and microcontroller architectures (ARM, RISC-V).
    - Proficiency in the full SDLC, including professional engineering practices like Git, CMake, code reviews, and continuous integration.
    - Solid understanding of network programming and experience with multithreading on multicore microcontrollers.
    - Expertise in communication interfaces (I2C, SPI, UART, and Wi-Fi) and experience writing device drivers and libraries.
    - Ability to work independently and take ownership of complex projects.
    - Excellent communication skills for technical discussions and documentation, with a collaborative mindset for cross-functional team environments.
    - At least an Intermediate level in both written and spoken English (B1).

    Nice to have:
    - Understanding of security protocols and encryption methods
    - Experience with Python for scripting and automation
    - Experience using AI-powered tools to enhance productivity and code quality

    The company offers:
    - The environment of equal opportunities, transparent and value-based corporate culture, and an individual approach to each team member
    - Competitive compensation and perks. Annual performance review
    - Gig-contract
    - 21 paid vacation days per year, paid public holidays according to Ukrainian legislation
    - Development opportunities like corporate courses, knowledge hubs, and free English classes, as well as educational leaves
    - Medical insurance is provided from day one. Sick leaves and medical leaves are available
    - Remote working mode is available within Ukraine only
    - Free meals, fruits, and snacks when working in the office.

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  • Β· 96 views Β· 8 applications Β· 2d

    Backend Engineer

    Full Remote Β· Poland, Ukraine Β· Product Β· 4 years of experience Β· English - B2
    Main Responsibilities – Participate in the design, implementation, and maintenance of server-side code for web applications and services, ensuring it is efficient, scalable, and secure – Design and manage databases, including schema design and...

    Main Responsibilities

    – Participate in the design, implementation, and maintenance of server-side code for web applications and services, ensuring it is efficient, scalable, and secure

    – Design and manage databases, including schema design and improvements, query optimization, and ensuring data integrity and security

    – Develop and maintain integrations between different parts of the system and with external services, ensuring robustness and clear documentation

    – Ensure code is developed with a comprehensive understanding of deployment procedures and how it will function within the overall project scope

    – Implement and maintain comprehensive test coverage to ensure the reliability and stability of the codebase

    – Regularly maintain and refactor the codebase to address issues, improve performance, and manage technical debt

    – Work closely with a geographically distributed team of engineers, QA, UI/UX designers, and PMs to ensure seamless integration, align on project goals, and collaboratively address technical challenges

    – Actively participate in regular internal team meetings and company-wide meetings to stay aligned with project goals, share updates, and contribute to broader organizational challenges

    – Implement and adhere to security best practices to protect against common vulnerabilities and ensure the safety of the application and its data

     

    Mandatory Requirements

    – 4+ years of experience in commercial software development

    – Experience with the Go programming language (or any other similar), including its syntax, standard library, and best practices for writing efficient, clean, and maintainable code

    – Experience with relational databases, including writing and optimizing SQL queries, designing schemas, and managing migrations

    – Basic understanding in containerizing applications using Docker and managing Dockerfiles

    – Experience with CI/CD pipelines, automating build, test, and deployment processes, and familiarity with tools like Jenkins or GitHub Actions

    – Proficiency in Git for version control, including branching, merging, pull requests, and code review practices

    – Proficiency in testing and debugging, including writing unit and integration tests

    – Ability to design and implement scalable RESTful and GraphQL APIs, with a strong emphasis on security best practices (e.g., OWASP Top 10)

    – Analytical and problem-solving abilities to address technical challenges and optimize existing systems

    – Strong communication and documentation skills with the ability to explain technical concepts to both technical and non-technical stakeholders

     

    Will be a plus

    – Understanding of concurrency models, goroutines, channels, and parallelism

    – Familiarity with additional database technologies like Cassandra, Redis, or Elasticsearch can be beneficial for handling diverse data storage and retrieval needs

    – Familiarity with cloud platforms such as AWS, including deployment, scaling, and managing services

    – Experience with GraphQL, which can complement RESTful API skills

    – Experience with message brokers can be useful for managing asynchronous communication in distributed systems

    – Familiarity with Ruby on Rails since we have an internal project using this framework

     

    We offer

    – Equipment

    – Ongoing learning opportunities

    – Insurance for employees and family

    – Opportunity for the most experienced employees to work in the US office in the future

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