Jobs Backend

987
  • Β· 49 views Β· 7 applications Β· 2d

    Senior PHP Developer

    Office Work Β· Ukraine (Kyiv) Β· Product Β· 4 years of experience Β· English - A2
    IT компанія WorkTime Π· офісами Ρƒ ΠšΠ°Π½Π°Π΄Ρ– ΠΈ ΠšΠΈΡ”Π²Ρ–, ΡˆΡƒΠΊΠ°Ρ” Π΄ΠΎ сСбС Π² ΠΊΠΎΠΌΠ°Π½Π΄Ρƒ Senior PHP Developer Ρƒ ΠšΠΈΡ—Π²ΡΡŒΠΊΠΈΠΉ офіс. Π‘Ρ„Π΅Ρ€Π° Π΄Ρ–ΡΠ»ΡŒΠ½ΠΎΡΡ‚Ρ– ΠΊΠΎΠΌΠΏΠ°Π½Ρ–Ρ— β€” Ρ€ΠΎΠ·Ρ€ΠΎΠ±ΠΊΠ° Ρ‚Π° ΠΏΡ€ΠΎΠ΄Π°ΠΆ власного ΠΌΠΎΠ½Ρ–Ρ‚ΠΎΡ€ΠΈΠ½Π³ΠΎΠ²ΠΎΠ³ΠΎ софту. Looking for a back-end web developer: An active, experienced...

    IT компанія WorkTime Π· офісами Ρƒ ΠšΠ°Π½Π°Π΄Ρ– ΠΈ ΠšΠΈΡ”Π²Ρ–, ΡˆΡƒΠΊΠ°Ρ” Π΄ΠΎ сСбС Π² ΠΊΠΎΠΌΠ°Π½Π΄Ρƒ Senior PHP Developer Ρƒ ΠšΠΈΡ—Π²ΡΡŒΠΊΠΈΠΉ офіс. Π‘Ρ„Π΅Ρ€Π° Π΄Ρ–ΡΠ»ΡŒΠ½ΠΎΡΡ‚Ρ– ΠΊΠΎΠΌΠΏΠ°Π½Ρ–Ρ— β€” Ρ€ΠΎΠ·Ρ€ΠΎΠ±ΠΊΠ° Ρ‚Π° ΠΏΡ€ΠΎΠ΄Π°ΠΆ власного ΠΌΠΎΠ½Ρ–Ρ‚ΠΎΡ€ΠΈΠ½Π³ΠΎΠ²ΠΎΠ³ΠΎ софту.

     

    Looking for a back-end web developer:

     

    An active, experienced and motivated individual to fulfill the position in our company.

     

    About the project:

     

    The project is an employee monitoring software. In the current situation this is a highly demanded product and demand is growing. Our product is 20+ years on the market and we are focusing today on creating from the scratch its cloud edition. The goal is to replace all existing editions with one high quality web version. Back end server and database environment β€” Windows Server.

     

    As the developer of this project you are expected to:

     

    Demonstrate willingness to learn and to professionally grow.

    Actively participate in the project development.

    Demonstrate high quality coding style to support our goal of creating the new reliable, scalable and stable system.

    Your main duty will be back-end development and your expertise will be needed during the system development and release stages.

     

    If you have any experience in front-end development, this is a plus and is welcome.

     

    Required knowledge:

     

    PHP 7.4 - 8.2;

    OOP (object-oriented programming);

    Firebird, MSSQL (Knowledge of pure SQL), PDO, InterBase;

    JavaScript, JQuery, HTML, CSS;

    Rest API (JSON);

    Git, GitLab;

    Apache;

    Php;

    StormComposer.

     

    Will be good:

     

    Symfony 5 - 6;

    PostgreSQL;

    Docker;

    XDebug;

    Nginx;

    UnitTest;

    Ability to refactor code

    More about the project:

     

    The project is an employee monitoring software. In the current situation this is a highly demanded product and demand is growing. Our product is 20+ years on the market and we are focusing today on creating from the scratch its cloud edition. The goal is to replace all existing editions with one high quality web version. Back end server and database environment - Windows Server.

     

    What we offer:

     

    Compensation in USD,

     

    Highly professional result-oriented environment,

     

    New development project where you can apply and expand your skills fully,

     

    Stable growing company, 20+ years on the market,

    More
  • Β· 47 views Β· 10 applications Β· 2d

    Senior Python Engineer (Europe)

    Full Remote Β· EU Β· 5 years of experience Β· English - B2
    We are looking for Senior Python Engineer to join our team. Our client - the fortune 500 company and a bigger car safety systems manufacturer is planning to develop a Global AI Orchestrator β€” an enterprise AI-driven Quality Assurance platform operating...

    We are looking for Senior Python Engineer to join our team.
    Our client - the fortune 500 company and a bigger car safety systems manufacturer is planning to develop a Global AI Orchestrator β€” an enterprise AI-driven Quality Assurance platform operating across cloud, on-prem, and edge environments. The solution integrates Azure services (Azure Entra ID, Azure ML Studio, Azure IoT Hub) with existing customer systems and edge devices to deliver secure, scalable command-and-control capabilities.

    The platform manages large fleets of Windows and Linux edge devices β€” enabling provisioning, software deployment, updates, decommissioning, and inventory exposure via APIs. It supports OCI-compliant container orchestration on the edge, enforces secure communications, and is designed to scale across multiple customer edge use-cases.

     

    Responsibilities:

    • Design and implement backend services for the central command-and-control platform
    • Develop scalable REST/gRPC APIs for device lifecycle management (provisioning, deployment, updates, inventory)
    • Build orchestration services managing OCI container workloads on edge devices
    • Integrate AI/ML pipelines and model operations from Azure ML Studio
    • Implement secure device communication (TLS, certificate management, encrypted channels)
    • Ensure high availability, scalability, and performance of orchestration services
    • Collaborate with DevOps on CI/CD, containerization, and release management
    • Support cross-platform device management (Windows & Linux)
    • Contribute to system architecture, technical design, and code quality standards

       

    Requirements:

    • 5+ years of professional Python engineering experience
    • Strong expertise in microservices architecture and distributed systems
    • Proven experience designing production-grade APIs
    • Hands-on experience with Docker / OCI containers
    • Experience working with IoT or edge device ecosystems
    • Solid understanding of secure communication protocols (TLS, PKI, cert rotation)
    • Experience integrating with cloud platforms (Azure)
    • Knowledge of container orchestration frameworks (Kubernetes, K3s, Edge K8s)
    • Exposure to MLOps / AI model lifecycle management
    • Strong database experience (SQL/NoSQL)
    • Familiarity with event-driven architectures and message brokers
    • Experience operating in Linux environments

       

    Nice to have:

    • Experience with Azure IoT Hub, Azure ML Studio, Azure Entra ID
    • Experience with device fleet provisioning at scale
    • Automotive, Manufacturing, or Industrial QA domain experience
    • Familiarity with Zero-Trust or outbound-only edge security models
    • Contributions to platform observability (logging, telemetry, tracing)

       

    We offer*:

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

    *not applicable for freelancers

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  • Β· 40 views Β· 6 applications Β· 2d

    Senior Python Engineer (Ukraine)

    Full Remote Β· Ukraine Β· 5 years of experience Β· English - B2
    We are looking for Senior Python Engineer to join our team. Our client - the fortune 500 company and a bigger car safety systems manufacturer is planning to develop a Global AI Orchestrator β€” an enterprise AI-driven Quality Assurance platform operating...

    We are looking for Senior Python Engineer to join our team.
    Our client - the fortune 500 company and a bigger car safety systems manufacturer is planning to develop a Global AI Orchestrator β€” an enterprise AI-driven Quality Assurance platform operating across cloud, on-prem, and edge environments. The solution integrates Azure services (Azure Entra ID, Azure ML Studio, Azure IoT Hub) with existing customer systems and edge devices to deliver secure, scalable command-and-control capabilities.

    The platform manages large fleets of Windows and Linux edge devices β€” enabling provisioning, software deployment, updates, decommissioning, and inventory exposure via APIs. It supports OCI-compliant container orchestration on the edge, enforces secure communications, and is designed to scale across multiple customer edge use-cases.

     

    Responsibilities:

    • Design and implement backend services for the central command-and-control platform
    • Develop scalable REST/gRPC APIs for device lifecycle management (provisioning, deployment, updates, inventory)
    • Build orchestration services managing OCI container workloads on edge devices
    • Integrate AI/ML pipelines and model operations from Azure ML Studio
    • Implement secure device communication (TLS, certificate management, encrypted channels)
    • Ensure high availability, scalability, and performance of orchestration services
    • Collaborate with DevOps on CI/CD, containerization, and release management
    • Support cross-platform device management (Windows & Linux)
    • Contribute to system architecture, technical design, and code quality standards

       

    Requirements:

    • 5+ years of professional Python engineering experience
    • Strong expertise in microservices architecture and distributed systems
    • Proven experience designing production-grade APIs
    • Hands-on experience with Docker / OCI containers
    • Experience working with IoT or edge device ecosystems
    • Solid understanding of secure communication protocols (TLS, PKI, cert rotation)
    • Experience integrating with cloud platforms (Azure)
    • Knowledge of container orchestration frameworks (Kubernetes, K3s, Edge K8s)
    • Exposure to MLOps / AI model lifecycle management
    • Strong database experience (SQL/NoSQL)
    • Familiarity with event-driven architectures and message brokers
    • Experience operating in Linux environments

       

    Nice to have:

    • Experience with Azure IoT Hub, Azure ML Studio, Azure Entra ID
    • Experience with device fleet provisioning at scale
    • Automotive, Manufacturing, or Industrial QA domain experience
    • Familiarity with Zero-Trust or outbound-only edge security models
    • Contributions to platform observability (logging, telemetry, tracing)

       

    We offer*:

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

    *not applicable for freelancers

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  • Β· 125 views Β· 47 applications Β· 2d

    Senior Node.js Developer

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 4 years of experience Β· English - B1
    We are building a high-performance, real-time slot gaming platform and are looking for a Senior Backend Developer who will take ownership of our entire backend direction. What you’ll do Own and drive the backend direction of the company as one of the...

    We are building a high-performance, real-time slot gaming platform and are looking for a Senior Backend Developer who will take ownership of our entire backend direction.

    🧩 What you’ll do

    • Own and drive the backend direction of the company as one of the key technical leaders;
    • Design and implement new game mechanics on top of our existing PGS, extend its capabilities, and contribute to core gameplay engine development;
    • Architect scalable, secure, and high-performance backend services using Node.js and TypeScript;
    • Work closely with Game Logic, Frontend, and DevOps teams to ensure seamless integrations, real-time performance, and platform-wide consistency;
    • Define backend engineering standards and enforce best practices across code quality, architecture, and performance;
    • Design and maintain backend infrastructure: schemas, caching, messaging flows, microservices, gateways;
    • Participate in roadmap planning, technical decision-making, and architectural discussions as the platform evolves;
    • Support a rapidly growing product and engineering environment β€” we are scaling fast, and you will play a major role in that growth.

     

    🧠 What you bring

    • 5+ years of backend development experience, including ownership of complex systems or features;
    • Strong expertise with Node.js + TypeScript and modern frameworks (Fastify, Nest.js);
    • Advanced knowledge of SQL and NoSQL databases: PostgreSQL, MongoDB, Redis;
    • Solid experience with message brokers (RabbitMQ or Kafka) and queue-based, event-driven design patterns;
    • Deep understanding of distributed systems, microservices, and real-time communication (WebSocket, Socket.io);
    • Experience building high-performance APIs, async flows, caching strategies, and scalable architectures;
    • Confident with CI/CD, Git, automated testing (Jest), and monitoring/observability tools (Grafana, Loki, Tempo).

       

    πŸ’Ž Nice to have

    • Knowledge of PHP/Laravel or experience with other backend ecosystems;
    • Familiarity with AWS, Docker, Kubernetes, containerized deployments;
    • Experience with RNG, platform integrations, or the iGaming ecosystem.
       

    🎁 Benefits

    β€” 21 vacation days + 5 extra day-offs annually;
    β€” 12 paid sick days;
    β€” Fully remote format β€” work from anywhere you feel productive;
    β€” Flexible schedule: start your day anytime between 08:00–12:00 CET;
    β€” Fixed budget for health insurance and gym/fitness;
    β€” We provide all required work equipment;
    β€” Zero bureaucracy and direct communication with founders and C-level;
    β€” Minimal meetings, async-friendly workflow;
    β€” Startup energy: fast motion, creativity, and tight-knit communication;
    β€” Business trips and team meetups several times per year;
    β€” Multiple salary payout options (flexible formats);
    β€” …And many more perks unlocked after we hit break-even.

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  • Β· 73 views Β· 1 application Β· 2d

    Senior C# / .NET engineer

    Full Remote Β· Poland Β· 5 years of experience Β· English - B2
    Our Client was established with the mission to fundamentally transform the execution of capital projects and operations. Designed by industry experts for industry experts, our Client’s platform empowers users to digitally search, visualize, navigate, and...

    Our Client was established with the mission to fundamentally transform the execution of capital projects and operations. Designed by industry experts for industry experts, our Client’s platform empowers users to digitally search, visualize, navigate, and collaborate on assets. Drawing on 30 years of software expertise and 180 years of industrial legacy as part of the renowned Scandinavian business group, Client plays an active role in advancing the global energy transition. The company operates from Norway, the UK, and the U.S.

    What you tell your friends you do: β€œI develop the identity and access management (IAM) that keeps my company secure and seamless, shaping the product experience as much as the code.” 

    Key Responsibilities:

    • Build and evolve our backend services in C#/.NET, owning key parts of our IAM-domain
    • Design and maintain integrations between our portal, backend services, and assorted third-party systems.
    • Work across a broad surface area: backend, React frontend, and the DevOps infrastructure that keeps everything running.
    • Shape features with the product team - scoping, estimating, and challenging the β€œwhy” behind what we build.
    • Mentor teammates, contribute to architectural discussions, and help facilitate agile ceremonies.
    • Support a team that owns everything end-to-end, from infra to UI.

    How will the work look like

    • Working as part of a self-driven team of seven that owns an entire β€œapp within the app” -  full flow, full responsibility.
    • Using and improving our DevOps setup (Terraform, CI/CD, cloud platforms), building on the foundations already established.
    • Mostly focusing on backend, but with the opportunity to jump into frontend and infrastructure when it makes sense.
    • Collaborating closely with other engineering teams and other disciplines to balance technical depth with user and business needs.
    • Bringing your experience and the right attitude to help the team scale.
    • We are using Frontegg as IDP (not important to have experience), SCIM, SSO, OAUTH 2.0

    Requirements

    • 5+ years of experience with C# or .Net, including building and maintaining production-grade systems.
    • Engineer with a strong sense of ownership, capable of operating effectively across a broad and evolving technical landscape.
    • Solid understanding of DevOps practices, CI/CD pipelines, and infrastructure-as-code approaches (preferably Terraform).
    • Practical experience working within Identity & Access Management (IAM) or related identity/security domains.
    • Demonstrated ability to collaborate cross-functionally, coordinate work across teams, and actively contribute to architectural design and technical decision-making.
    • Product-oriented mindset with the ability to consider business goals, user needs, and system impact, not solely implementation details.

    Nice to have:

    • Experience with Azure cloud 
    • Experience with React 
    • Ability to travel abroad once a year for an on-site team building (Oslo, Norway) 
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  • Β· 111 views Β· 24 applications Β· 2d

    Middle PHP Backend Developer

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 2 years of experience Β· English - B1
    Akurateco is a white-label payment software provider with over 15 years of experience in the fintech industry. Our platform, Akurateco Cashier, operates in more than 100 countries and supports over 150 currencies, catering to the needs of various...

    Akurateco is a white-label payment software provider with over 15 years of experience in the fintech industry. Our platform, Akurateco Cashier, operates in more than 100 countries and supports over 150 currencies, catering to the needs of various businesses, including those in high-risk industries.

    We are actively looking for a PHP Backend Developer!

     

    REQUIREMENTS:

    • Experience: Minimum 2-3 years of commercial software development experience;
    • PHP: Proven working experience with PHP 7.4+ (8.x is a strong plus);
    • Practical experience with a Symfony framework;
    • Deep understanding of core software development principles (OOP, Design Patterns, SOLID);
    • Experience designing and working with RESTful APIs;
    • Ability to write clean, well-structured, and maintainable code;
    • English: Intermediate (B1-B2) level or higher for active team communication.

     

    • NICE TO HAVE:
    •  Experience integrating with external Payment Service Providers (PSPs);
    • Familiarity with code quality tools (PHPMD, PHPCPD);
    • Experience with Docker and CI/CD pipelines;
       
    • KEY RESPONSIBILITIES:
    • Develop and maintain specific functional modules and services;
    • Develop and implement integrations with external payment systems and third-party services;
    • Write clean, efficient, and maintainable code, including unit tests;
    • Actively participate in technical discussions, sprint planning, and team decision-making processes;
    • Participate in refactoring and optimization of the existing codebase to improve performance and reliability.


      WE OFFER:

    • Fully remote work format with a flexible schedule;
    • An engaging, large-scale project in the online payments sector;
    • Competitive financial compensation;
    • 20 working days of vacation and 10 paid sick leave.
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  • Β· 69 views Β· 10 applications Β· 2d

    Backend Developer

    Full Remote Β· Countries of Europe or Ukraine Β· 4 years of experience Β· English - C1
    Next-generation autonomous AI systems are being built to move far beyond simple interaction β€” toward software capable of executing complex, real-world operations at scale. Backed by $5.1M from leading founders and venture investors, the company operates...

    Next-generation autonomous AI systems are being built to move far beyond simple interaction β€” 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.


     

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  • Β· 34 views Β· 4 applications Β· 2d

    Senior Python Engineer

    Full Remote Β· Poland, Romania, Croatia Β· 5 years of experience Β· English - B2
    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...

    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).

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  • Β· 30 views Β· 2 applications Β· 2d

    Senior Full Stack .NET+React Engineer

    Full Remote Β· Ukraine Β· 6 years of experience Β· English - B2
    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...

    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
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  • Β· 29 views Β· 1 application Β· 2d

    Middle Golang Developer

    Full Remote Β· Countries of Europe or Ukraine Β· 4 years of experience Β· English - B2
    Project: Rental Marketplace Requirements: 3+ years of experience with Golang English: Π’2+ (must have) Start: ASAP We offer: Cooperation with a stable company with well-established processes and a positive atmosphere Experience in project management of...

    Project: Rental Marketplace

    Requirements:
    3+ years of experience with Golang
    English: Π’2+ (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 
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  • Β· 108 views Β· 26 applications Β· 2d

    Software Developer - Backend Focus

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 2 years of experience Β· English - B2
    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...

    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

     

    More
  • Β· 37 views Β· 3 applications Β· 2d

    Ruby on Rails developer

    Full Remote Β· Countries of Europe or Ukraine Β· 5 years of experience Β· English - C1
    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...

    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
    More
  • Β· 34 views Β· 4 applications Β· 2d

    Senior Python/AI Engineer

    Full Remote Β· Ukraine Β· 6 years of experience Β· English - B2
    Project Description: Our client, one of the leading Agriculture Companies, is modernising their landscape and adopting AI and innovations in their process. We are seeking a highly skilled and innovative Python/AI Engineer to join our team. The ideal...

    Project Description:

    Our client, one of the leading Agriculture Companies, is modernising their landscape and adopting AI and innovations in their process.
    We are seeking a highly skilled and innovative Python/AI Engineer to join our team. The ideal candidate will be responsible for developing cutting-edge AI solutions, creating Proof of Concepts (PoCs), and integrating Large Language Models (LLMs) into our application landscape. This role involves close collaboration with business stakeholders and R&D teams to drive AI adoption and deliver impactful results.

    Responsibilities:

    • Design and develop PoCs and present them to business stakeholders.
    • Build and deploy innovative AI solutions using state-of-the-art models.
    • Integrate LLMs into existing and new applications.
    • Develop new functionalities within R&D applications..
    • Promote and implement best process practices across AI development workflows.

    Mandatory Skills Description:

    • 6+ years of experience in AI/ML development.
    • Advanced proficiency in Python.
    • Strong understanding of AI frameworks (e.g., TensorFlow, PyTorch).
    • Expertise in at least one LLM (e.g., GPT, Claude, LLaMA).
    • Solid foundation in Data Science and statistical modeling.
    • Experience with Agentic Workflows using LangChain-based agents.
    • Hands-on experience with LangGraph (e.g., hackathons or MCPs).
    • Deep understanding of fine-tuning techniques for LLMs.
    • Hands of experience on Transformer architecture and its evolution from earlier models.

    Nice-to-Have Skills Description:

    Knowledge of Multiple LLMs and their adoption in commercial projects

    Languages:

    English: C1 Advanced

    More
  • Β· 56 views Β· 16 applications Β· 2d

    Software Engineer (Platform)

    Full Remote Β· Countries of Europe or Ukraine Β· Product Β· 3 years of experience Β· English - B2
    The Role This is a software engineering role, not a traditional IT or DevOps position. We are looking for a Platform Engineer who loves to build products for other developers. Your "product" is the entire developer experience (DevEx) for our R&D...

    The Role

    This is a software engineering role, not a traditional IT or DevOps position. We are looking for a Platform Engineer who loves to build products for other developers.

    Your "product" is the entire developer experience (DevEx) for our R&D department. Your "customers" are all the other engineers in teams like Tenants, Assets, and Market. Your mission is to build the tools, abstractions, and self-service platforms that make our developers faster, safer, and more productive.

    You won't just run RabbitMQ; you will build the "Queue (RabbitMQ) as-a-platform" that other teams consume. You won't just use an API gateway; you will build and maintain the "API gateway as-a-platform" that defines our standards. You will write high-quality, scalable code (using our company stack: TypeScript, Node.js, Nest.js) to create the internal tools that power our entire R&D organization.

    While this is a remote-first role, you should be based in a CET-adjacent timezone to collaborate effectively with colleagues. You can also expect to travel for periodic in-person team gatherings.

     

    What You'll Do

    • Build 'as-a-Platform' Services: Design, code, and maintain the self-service platforms that all our engineers rely on. This specifically includes:
      • API gateway as-a-platform
      • WebSocket API as-a-platform
      • Queue (RabbitMQ) as-a-platform
      • User log processing as-a-platform
    • Engineer the CI/CD Platform: Act as a core developer and maintainer of our CI/CD platform, building reusable pipelines, deployment patterns, and automation.
    • Improve Developer Experience: Build the tooling and automation that defines and improves our development experience, from local setup to production.
    • Infrastructure as Code (IaC): Work with the team to manage and scale our foundational AWS services (k8s, databases, cache, vault) using code (e.g., Terraform).
    • Maintain Standards: Help build the tooling that defines and enforces API standards, version control policies, and best practices.
    • Reliability: Participate in on-call rotations and help lead incident response procedures and post-mortems.

       

    What We're Looking For

    • Software Engineer First: You are a strong software engineer with 3+ years of experience, preferably with TypeScript/Node.js, who is passionate about infrastructure.
    • Platform Experience: You have a proven track record of building internal tools, developer platforms, or CI/CD systems. You treat "infrastructure" as a "product."
    • DevOps/Infra Skills: Deep, hands-on experience with AWSKubernetes, and IaC (e.g., Terraform, Pulumi).
    • CI/CD Expert: Experience building and managing complex CI/CD pipelines (e.g., GitLab CI, GitHub Actions, Jenkins).
    • "Customer" Empathy: You have a product mindset and genuine empathy for your "customers" (other developers) and their experience.
    • Location: Based in a timezone adjacent to Central European Time (CET) for optimal team collaboration.
    • Problem Solver: You are an autonomous problem-solver who can take a high-level goal (e.g., "we need a better API gateway") and own it from design to production.

    Bonus Points

    • Experience building custom API gateways or platform abstractions.
    • Deep knowledge of our specific infra stack: RabbitMQPostgreSQLRedis.
    • Experience in a FinTech or high-security environment.

       

    What We Offer

    • Foundational Role: A unique opportunity to be a founding engineer building the entire developer platform for a high-growth FinTech.
    • High-Impact: Your work will directly accelerate every other engineer in the company.
    • Clear Ambition: The chance to join a company with a clear goal of becoming the #1 crypto platform in the EU.
    • Greenfield Culture, Brownfield Code: A rare chance to join a new company culture with no baggage, while solving the interesting technical challenges of a mature product.
    • Flexibility & Connection: A 100% remote-first role with periodic, all-expenses-paid team gatherings and a new hub in Ticino, Switzerland.
    • Compensation: A competitive salary and benefits package.
    More
  • Β· 757 views Β· 196 applications Β· 2d

    .NET Developer

    Full Remote Β· Ukraine Β· 7 years of experience Β· English - C1
    Experienced Microsoft.NET developer in building backend systems in Microsoft Azure. You will design and build services in a service oriented architecture. What We Seek: Proven experience in designing and building APIs in ASP.NET (version 8.0 or...

    Experienced Microsoft.NET developer in building backend systems in Microsoft Azure. You will design and build services in a service oriented architecture.


    What We Seek:

    • Proven experience in designing and building APIs in ASP.NET (version 8.0 or higher)
    • Proven experience with Entity Framework Core (version 8.0 or higher)
    • Proven experience with Microsoft Azure
    • At least 7 years of professional experience with C#
    • At least 7 years of experience in building unit and integration tests
    • Knowledge of service-oriented architecture (SOA) principles
    • Knowledge of integration patterns and principles
    • Knowledge of OAuth and OpenID Connect security protocols
    • Adheres to SOLID principles
    • At least 7 years of experience with Azure DevOps and Git
    • Understanding of UML activity diagrams and sequence diagram.

       

    A plus when has:

    • Proven knowledge of the following Azure Platform Services; App Service, Service Bus, Key Vault, Storage (blob- and table storage), SQL Database, AI Search
    • Proven knowledge of Azure DevOps yaml pipelines in combination with powershell and Azure deployment services
    • Proven knowledge of T-SQL (SQL Server)
    • Proven knowledge of the IDesign Method

     

    What We Offer:

    • Transparent bonus payment system
    • Competitive salary with regular compensation reviews
    • Opportunity to bring your ideas to life and lead the entire process
    • 40-hour workweek with flexible scheduling
    • Paid vacation and sick leave benefits
    • Cozy office near the city center of Lviv


     

    More
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