Jobs Backend

986
  • · 545 views · 45 applications · 8d

    Junior Engineer

    Full Remote · Countries of Europe or Ukraine · Product · 1 year of experience · English - B2
    We are looking for highly motivated junior engineers to join our Design-for-Test (DFT) team. This is an excellent opportunity for graduates who want to build expertise in Scan, Memory BIST, and JTAG within advanced VLSI development. ...

    We are looking for highly motivated junior engineers to join our Design-for-Test (DFT) team.

    This is an excellent opportunity for graduates who want to build expertise in Scan, Memory BIST, and JTAG within advanced VLSI development.

     

    Responsibilities:

    Learn and support implementation of scan insertion and scan chain architecture

    Assist in ATPG pattern generation and test coverage analysis

    Participate in Memory BIST (MBIST) integration and verification

    Work with JTAG / IEEE 1149.1 boundary scan concepts and flows

    Help debug test-related issues at RTL and gate level

    Collaborate with senior DFT engineers on SoC-level test strategy

     

    Required Background:

    Academic knowledge in digital logic, VLSI design, and computer architecture

    Basic familiarity with DFT concepts: scan, ATPG, BIST, boundary scan

    Understanding of Verilog or VHDL

    Scripting basics (Python, TCL, Shell)

    Good analytical and problem-solving skills

    Strong motivation to learn industry-standard DFT tools and flows

     

    What We Offer:

    Full training in Scan, MBIST, JTAG, ATPG, and DFT methodologies

    Mentorship by experienced DFT engineers

    Exposure to advanced SoC development flows and signoff

    Growth path toward senior DFT, test architecture, or silicon bring-up roles

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  • · 138 views · 15 applications · 8d

    Junior .NET Developer

    Hybrid Remote · Countries of Europe or Ukraine · 1 year of experience · English - B2
    We are looking for a motivated Junior .NET Developer to join our team! About the Project: A platform for mobile operators focused on invoicing, billing, and notifications. The solution helps both individual and business customers manage mobile services,...

    We are looking for a motivated Junior .NET Developer to join our team!

     

    About the Project:
    A platform for mobile operators focused on invoicing, billing, and notifications. The solution helps both individual and business customers manage mobile services, control expenses, handle subscriptions, renew contracts, and activate SIM cards efficiently.

     

    Requirements:
    — Good knowledge of SQL;
    — SQL Server experience (must have);
    — Basic Knowledge of .NET / .NET Core;
    — Experience with SQL and ADO.NET;
    — Experience with Git (version control);
    — Experience working with Jira (task and project tracking);
    — Experience with Dapper is preferred;
    — Intermediate / Upper-Intermediate level of English;
    — Ability to work with and optimize existing codebases.

     

    Would Be a Plus:
    — Experience in Telecom or working with payment systems;
    — Familiarity with telecom invoicing, billing, and notification systems.

     

    Responsibilities:
    — Develop, maintain, and enhance web and desktop applications using .NET technologies (including .NET 7 or higher);
    — Design and implement database queries and scripts using SQL Server;
    — Work with ADO.NET to manage data access layers and interact with SQL databases;
    — Build and consume Web APIs for seamless integration with other systems;
    — Participate in the full software development lifecycle — design, coding, testing, and deployment;
    — Collaborate with cross-functional teams to define, design, and deliver new features;
    — Debug and troubleshoot issues across the stack, particularly within .NET and SQL components;
    — Follow best practices related to code quality, testing, and CI/CD deployment processes;
    — Contribute to improving existing systems and optimizing performance.

     

    We Offer:
    — Monday–Friday working schedule (9:00–18:00 / 10:00–19:00);
    — Work format: office / remote / hybrid;
    — Medical insurance;
    — No time trackers or excessive bureaucracy;
    — Paid days off and sick leave;
    — Gifts for birthdays and professional holidays;
    — Opportunity to test your ideas, lead initiatives, and try new and interesting things;
    — Collaboration with experienced specialists willing to share their knowledge;
    — Participation in internal and external events, with opportunities to build or promote your personal brand.

     

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  • · 111 views · 28 applications · 8d

    Sr Node.js Engineer

    Full Remote · Countries of Europe or Ukraine · 6 years of experience · English - B2
    A FinTech payment gateway for the US market. The platform integrates with payment providers and processes transactions for US-based merchants. What You’ll Be Doing Develop and maintain features across the full stack — from task clarification to...

    A FinTech payment gateway for the US market. The platform integrates with payment providers and processes transactions for US-based merchants.

     

    What You’ll Be Doing

    • Develop and maintain features across the full stack — from task clarification to production release.
    • Build and support backend services using Node.js (Express).
    • Work with databases, primarily PostgreSQL, and occasionally MongoDB.
    • Develop responsive UI components using React and ensure smooth frontend-backend interaction.
    • Integrate with external payment providers and maintain stable, well-documented APIs.
    • Participate in code reviews and contribute to improving code quality and maintainability.
    • Support debugging, issue resolution, and performance improvements in collaboration with senior engineers.

     

    Requirements (Middle Level)

    Must-have:

    • 6+ years of commercial development experience (full-stack or backend with React experience as a plus).
    • Solid knowledge of Node.js and experience with Express or a similar framework.
    • Experience designing and developing REST APIs (validation, status codes, authentication, versioning).
    • Practical experience with PostgreSQL (queries, basic indexing, simple query optimization).
    • Hands-on experience with React (components, hooks, forms, API integration).
    • Good understanding of Git and collaborative workflows (PRs, code reviews, branching strategies).
    • Ability to independently handle medium-complexity tasks, clarify requirements, and deliver features to production.

     

    Nice to Have:

    • Experience with MongoDB.
    • Exposure to FinTech, payment integrations, or understanding of PCI-related constraints.
    • Basic experience with unit/integration testing.
    • Familiarity with Docker and CI/CD pipelines.

     

    Working Hours

    • Availability to work with US stakeholders - approximately 16:00 - 01:00 Kyiv time. 
    More
  • · 187 views · 66 applications · 8d

    Senior PHP Backend Developer

    Full Remote · Worldwide · 3 years of experience · English - B2
    About the project We are developing and maintaining a large ERP system for a jewelry manufacturing and wholesale company. The project is a long-term, continuously evolving legacy system with active feature development, refactoring, and integrations. The...

    About the project

    We are developing and maintaining a large ERP system for a jewelry manufacturing and wholesale company.
    The project is a long-term, continuously evolving legacy system with active feature development, refactoring, and integrations.

    The product covers manufacturing processes, inventory, logistics, finance, and wholesale operations.
    Work is fully remote, tasks are clearly defined, and communication is structured through the team — no direct contact with end clients.

    Requirements

    • 5+ years of experience with PHP
    • Strong experience with native PHP (procedural → OOP → DI)
    • Hands-on experience with:
      • Yii2
      • Laravel / Lumen
      • Workerman
    • Solid understanding of:
      • OOP and design principles
      • WebSockets
      • REST and SOAP APIs
      • GitFlow
      • CI/CD pipelines
      • Linux environments
    • Databases:
      • PostgreSQL
      • MySQL
      • Redis
    • Frontend basics:
      • Native JavaScript
      • jQuery
      • HTML / CSS
    • English level: B2 or higher (written and verbal communication)

    Responsibilities

    • Develop and maintain backend functionality for the ERP system
    • Work with legacy code: improve, refactor, and extend existing modules
    • Design and implement new features and integrations
    • Develop and maintain APIs (REST / SOAP)
    • Work with real-time features using WebSockets
    • Optimize performance, stability, and database queries
    • Fix bugs and ensure system reliability
    • Collaborate with backend, frontend, and product team members
    • Take ownership of tasks from analysis to delivery

    Soft skills

    • Strong self-management and ability to work independently
    • Clear and structured communication
    • Proactive mindset: identifies issues and proposes solutions
    • High level of responsibility and ownership for results
    • Ability to work effectively in distributed teams
    • Strong time management and prioritization skills

    Nice to have

    • Experience working in Scrum teams (5+ people)
    • Experience building complex ERP or CRM systems
    • Knowledge of Python
    • Experience with high-load or business-critical systems

    We offer

    • Full-time, fully remote work
    • Long-term, stable project
    • Clear task-based workflow
    • No micromanagement
    • Professional and experienced team
    • Opportunity to work on a complex, real-world ERP system
    More
  • · 245 views · 50 applications · 8d

    Middle .NET Developer

    Full Remote · Countries of Europe or Ukraine · Product · 3 years of experience · English - None Ukrainian Product 🇺🇦
    TemaBit Fozzy Group is an IT company that develops unique solutions for more than 40 businesses of Fozzy Group. We specialize in web and mobile development, as well as software for managing business processes and infrastructure projects. In addition, we...

    TemaBit Fozzy Group is an IT company that develops unique solutions for more than 40 businesses of Fozzy Group. We specialize in web and mobile development, as well as software for managing business processes and infrastructure projects.

    In addition, we experiment and care about the team and the Guest, we value cooperation, we preach honesty and openness.

     

    You will be an essential part of our engineering team, focusing on the maintenance, enhancement, and support of existing backend systems and applications. Your strong .NET development skills, combined with a pragmatic approach to problem-solving and debugging, will help ensure the stability, performance, and reliability of our production systems.

     

    Key Responsibilities:

    • Support and development of desktop applications based on Windows Forms / .NET Framework 4.8
    • Optimization of business logic at the Transact-SQL level in MSSQL
    • Development and maintenance of integration services using WCF
    • UI maintenance using DevExpress components
    • Development of new web services and components using .NET 8+
    • Participation in the gradual transition from a monolith to a modern microservice architecture
    • Following engineering best practices
    • Contribute to the implementation of scalable and efficient solutions

     

    Requirements:

    • 3+ years of .NET development
    • Practical experience with .NET Framework 4.8 (Windows Forms, WCF)
    • Strong hands-on experience with .NET 6/7/8 (EF,Dapper)
    • Deep knowledge of SQL Server and Transact-SQL
    • Experience working with DevExpress UI components
    • Good understanding of Docker
    • Experience with xUnit or similar with testing frameworks
    • Intermediate/B1 English Level, ability to read & write tech documentation
    • Good communication skills

     

    Nice-to-have Skills & Experience:

    • Experience building Gitlab CI/CD pipelines
    • Experience working with SQL database projects

     

    We propose:

    • The ability to generate and influence decision-making
    • Competitive salary discussed based on the results of the interview with the successful candidate
    • Medical insurance
    • Discounts for network employees
    • Remote work mode, and if you want to work in the office — there is a cozy co-working space in the Silver Breeze business center in Kyiv
    More
  • · 177 views · 50 applications · 8d

    Senior Backend Developer (Node.js)

    Full Remote · Countries of Europe or Ukraine · Product · 5 years of experience · English - B1
    Product that needs your engagement  Mobion is a cloud-based white-label platform for ride-hailing and corporate transport services. Launched in 2016 by Devart, it supports operators in 6+ countries and has handled over 20 million rides for 4M+ users...

    Product that needs your engagement     

    Mobion is a cloud-based white-label platform for ride-hailing and corporate transport services. Launched in 2016 by Devart, it supports operators in 6+ countries and has handled over 20 million rides for 4M+ users and 500K drivers.  

    Our ecosystem includes rider and driver apps, a real-time dispatch system, admin dashboards, and branded web portals — all backed by a secure, scalable Azure infrastructure. We offer both SaaS and franchise models to help partners grow fast across regions. 

     

    Your future team of professionals     

    You will become part of a dynamic Mobion Backend Team, where we value ownership, curiosity, and collaboration. The team consists of three Backend Developers and shares a strong feedback culture and growth mindset — we don’t just build features, we solve real problems. 

     

    Impact you will make  

    This role focuses on building scalable, reliable, and high-performance backend solutions for white-label and SaaS platforms. You will be responsible for designing, developing, and maintaining server-side systems, ensuring smooth integration with client applications and third-party services. 

     

    • Implement new technologies and engineering practices to optimize development processes and improve product quality. 
    • Define and maintain the overall system architecture, establish design patterns, and ensure technical decisions align with business objectives. 
    •  Design, develop, and maintain scalable and secure APIs. 
    •  Optimize database queries and improve overall system performance. 
    •  Monitor, analyze, and proactively improve system reliability and performance. 
    •  Investigate, troubleshoot, and resolve production issues in a timely manner. 
    •  Enhance and maintain CI/CD pipelines and deployment processes. 
    •  Provide mentorship, technical guidance, and coaching to team members. 

       

    Skills we are looking for     

    • 5+ years of experience in backend development using Node.js. 
    • Experience working with SQL and NoSQL databases, including schema design and query optimization. 
    • Solid understanding of API design and hands-on experience with API integration (RESTful services). 
    • Experience using version control systems, particularly Git. 
    • Familiarity with project management tools, such as Jira or similar. 
    • Experience with cloud platforms and application deployment (AWS, GCP, Azure, or equivalents). 

     

    Benefits you get 

    • Maintain your work-life balance 

    Manage your own working hours with our flexible schedule 

    19 days of annual vacation granted on a pro-rata basis 

    No overtimes required 

    • Hybrid type of cooperation 

    Whether you prefer to work remotely in the comfort of your home office or from one of our 4 offices, you can still take part in increasing the world`s awareness about quality Ukrainian products from any part of the world 

    • Stay healthy 

    Medical insurance from one of the top insurance companies in Ukraine with a wide range of included services, as well as special programs for relatives; and special options for those who live abroad. 

    15 working days of sick leave per year — because your health is a priority. 

    • Grow with us 

    In-house English courses — increase your proficiency through our online courses and speaking clubs with a native speaker 

    Online learning activities — workshops, lectures, and webinars to enhance your leadership, management, and self-awareness skills 

    Experience exchange — we are proud of our team of professionals who gladly share their deep expertise in all kinds of fields with the rest of the team 

    Promotions, rotations, and transitions — when you believe your skills could benefit a different role or team. 

    • Stand with Ukraine! 

    We have an active pro-Ukrainian position, and that means we help our army, our servicemen, and their families not only through constant donations and volunteering, but also through our military leave policy, special health insurance options, and financial help 

     

    We are a perfect match if you share our values 

    We are professionals in our field. 

    We know how to turn up our professionalism to the maximum, because we are experts who enjoy solving complex tasks. 

    We know how to focus on the product, think big, and at the same time delve deep into the details. 

     

    We create a calm and friendly atmosphere within the company. 

    We value the freedom of open and transparent communications. 

    Radical honesty is embedded in the foundation of our culture. 

     

    We are open to new things and constantly develop and practice regular knowledge sharing, which helps us evolve continuously. 

    Most importantly, the company creates an environment where we can fulfill our potential upon a solid foundation. 

     

    Our Hiring Process 

    • Recruitment Interview 
    • Technical Interview 
    • Management Interview 
    • Offer Call 

       

    We strive to ensure transparency and openness in the hiring process, and we understand the importance of providing timely feedback. If your resume meets the job requirements, we will contact you to clarify details and schedule an interview within 2 weeks after your application is submitted.  

    The timeframe for feedback between interview stages may take up to 2 weeks. 

    More
  • · 106 views · 35 applications · 8d

    Symfony Developer

    Full Remote · Worldwide · 5 years of experience · English - B2
    Must have: - 5+ years of experience working with Symfony PHP framework; - Upper-Intermediate+ English. We offer: - Attractive financial package - Paid vacation, holidays and sick leaves - Challenging projects - Professional & career growth - Great...

    Must have:

    - 5+ years of experience working with Symfony PHP framework;

    - Upper-Intermediate+ English.

     

    We offer:

    - Attractive financial package

    - Paid vacation, holidays and sick leaves

    - Challenging projects

    - Professional & career growth

    - Great atmosphere in a friendly small team

    - Flexible working hours

    More
  • · 104 views · 22 applications · 8d

    Full-Stack Java Developer

    Full Remote · Worldwide · 3 years of experience · English - B2
    Code&Care — is a successful full-stack development company, which provides clients with high-quality development assistance worldwide. Now our team has a position for Full-Stack Developer (Java/JEE + Angular) for a project in the GovTech domain (USA...

    Code&Care — is a successful full-stack development company, which provides clients with high-quality development assistance worldwide.

    Now our team has a position for  Full-Stack Developer (Java/JEE + Angular) for a project in the GovTech domain (USA client).

     

    Requirements:

    • 3+ years of experience with Java and strong understanding of JEE (Jakarta EE) or similar enterprise frameworks
    • Experience building REST APIs, working with SQL databases (Oracle/MySQL/PostgreSQL)
    • Solid knowledge of JPA/Hibernate, dependency injection, messaging, and enterprise-level application architecture
    • 2+ years of experience with Angular (we use Angular + PrimeNG)
    • Experience with AWS or other cloud platforms (EC2, RDS, CI/CD, deployments)
    • Understanding of microservices, containerization (Docker)
    • Ability to work with large enterprise systems, refactor legacy code, and design scalable solutions
    • Good communication skills & ability to work independently in a distributed team
    • English - Upper-Intermediate

     

    What the company offers:

    • Constant and interesting work with foreign clients
    • Flexible working hours
    • 50% cost compensation of sports, English lessons
    • Annual paid 30 days vacation and paid sick days
    • Medical insurance policy

     

    Responsibilities:

    • Develop and optimize enterprise ERP modules (finance, HR, project/contract management, procurement)
    • Design and implement scalable architecture for multi-tenant SaaS solutions
    • Integrate external APIs and services (payment systems, document tools, compliance systems)
    • Implement and support CI/CD pipelines and cloud deployments
    • Perform code reviews, refactoring, and participate in technical decision-making
    • Ensure security, performance, and reliability of the system
    • Collaborate closely with the engineering team and the client’s technical lead

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  • · 114 views · 30 applications · 8d

    Senior BackEnd Developer (Node.js)

    Full Remote · Countries of Europe or Ukraine · 5 years of experience · English - B2
    Phenomenon Studio is a full-cycle design and development company founded in 2019. We help startups and small to medium-sized businesses build and scale products across Healthcare, EdTech, SaaS, FinTech, and Web3 industries. Recognized with 30+ industry...

    Phenomenon Studio is a full-cycle design and development company founded in 2019.
    We help startups and small to medium-sized businesses build and scale products across Healthcare, EdTech, SaaS, FinTech, and Web3 industries. 
    Recognized with 30+ industry awards, we deliver high-quality solutions that combine creativity, technology, and business impact.
     

    We’re looking for a Senior BackEnd Developer for an all-in-one SaaS platform that helps agencies and creators manage large-scale social media operations.

    Today, these teams rely on spreadsheets, Discord, and multiple disconnected tools to handle scheduling, payroll, analytics, and communication. The platform replaces all of that with one centralized system.
     

    Think of it as: workforce management + scheduling + payroll + analytics + messaging + automation in a single web app.

    This is an operations-focused product built around dashboards, real-time systems, and complex business logic rather than a marketing-oriented application.

    Stack: TypeScript/JavaScript, React, Node.js (NestJS/Express), REST APIs, WebSockets, PostgreSQL + MongoDB, Redis, AWS (Lambda, API Gateway, SQS/SNS, DynamoDB, S3), Docker, CI/CD, Jest
    Stage: Early build; core architecture and foundations in progress

    Team: 3x Backend Developers, 3x Frontend Developers, Solution Architect, PM, BA, QA, DevOps, Designer
     

    Requirements:

    • 5+ years of experience in JavaScript, TypeScript, React
    • Strong Node.js (Express.js, NestJS)
    • Strong SQL & NoSQL: PostgreSQL, MySQL, MongoDB
    • Experience with Redis (caching, queues)
    • Real-time systems (WebSockets / socket-based)
    • REST API design & Git
    • Microservices & distributed systems architecture
    • AWS (Lambda, DynamoDB, S3, SQS, SNS, API Gateway)
    • Docker & CI/CD pipelines
    • Testing: Jest + integration / e2e
    • Background processing (queues, schedulers, workers)
    • Complex RBAC & permission logic
    • Security best practices (auth flows, rate limiting, audit logs, secrets management)
    • Production mindset (logging, monitoring, debugging, performance tuning)
    • Experience mentoring engineers & driving code standards
    • Upper-Intermediate English
       

    Nice to have:

    • Knowledge of other frameworks
    • Knowledge with Supabase
    • Knowledge with Strapi
       

    Responsibilities:

    • Build and scale a complex frontend application from scratch
    • Design and build scalable backend architecture for a high-load SaaS platform (dashboards, real-time systems, complex business logic)
    • Develop and maintain APIs, real-time features (WebSockets), background jobs, and integrations with external services
    • Design microservices and distributed systems with focus on performance, security, and reliability
    • Implement role-based access control (RBAC), permissions, audit logs, and secure auth flows
    • Optimize databases and queries (PostgreSQL/MySQL/MongoDB), handle high-volume data processing
    • Own features end-to-end: from technical design to production deployment and monitoring
       

    What we offer: 

    • Remote work format and flexible schedule
    • Autonomy in work, opportunity to build processes, and grow within the company
    • Individual development plan and annual performance review
    • Workshops and playgrounds for continuous learning
    • Compensation for subject-matter training
    • Corporate English classes
    • Access to IT Loyalty Club
    • Accounting support
    • 18 working days of annual leave
    • 7 working days of sick leave and 7 working days of unpaid leave
    • All national public holidays off
       

    Recruitment process: Recruitment interview - Technical interview - Final interview
     

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  • · 72 views · 22 applications · 8d

    FinTech Backend Developer (Finance Systems Automation)

    Full Remote · Countries of Europe or Ukraine · 3 years of experience · English - B2
    We’re an AI-driven payment ecosystem building next-generation financial infrastructure for merchants. To scale efficiently, we’re automating our financial flows - eliminating manual checks and human-based finance operations. We are looking for a Backend...

    We’re an AI-driven payment ecosystem building next-generation financial infrastructure for merchants. To scale efficiently, we’re automating our financial flows - eliminating manual checks and human-based finance operations.
     

    We are looking for a Backend Developer who will own financial automation: reconciling transactions, integrating gateways, validating settlement data, and ensuring nothing slips through.
     
     

    What You’ll Do

    • Build and maintain internal finance automation services that power our products
    • Integrate with multiple payment gateways and banking APIs
    • Ensure full traceability and correctness of transaction flows
    • Improve data accuracy, alerting, and observability systems
    • Help operations replace repetitive manual work with smart automation
    • Spot bottlenecks early - and fix them with clean, thoughtful engineering
       

    You’re a Great Fit If

    • You have 3+ years in backend engineering (PHP / Laravel)
    • You’ve worked with high-volume transactional systems (payments, fintech, e-commerce, etc.)
    • You’re confident with databases and data-validation (PostgreSQL / MySQL)
    • You understand reconciliation & settlement flows — or you’re eager to learn
    • You’re proactive: you investigate → fix → automate so the issue never appears again
       

    With Us You’ll Have

     • Fully remote setup with a flexible schedule

    • Fast-moving environment where decisions are quick and clear
    • Direct collaboration with founders & tech leadership — your work has real impact
    • Competitive compensation based on experience
    • A team that values ownership, clarity, and healthy communication
    More
  • · 194 views · 31 applications · 8d

    Backend developer

    Full Remote · Worldwide · 4 years of experience · English - B2
    Next-generation autonomous AI systems are being built to move far beyond simple interaction — toward software capable of executing complex, real-world operations at scale. Backed by $5.1M from leading founders and venture investors, the company operates...

    Next-generation autonomous AI systems are being built to move far beyond simple interaction — toward software capable of executing complex, real-world operations at scale. Backed by $5.1M from leading founders and venture investors, the company operates at the intersection of autonomous systems, distributed infrastructure, and applied AI, laying the foundation for truly self-operating digital entities.
    At this pivotal stage of growth, we are looking for a Senior Software Engineer (Core Infrastructure) 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)
      • 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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  • · 64 views · 4 applications · 8d

    Lead .NET Engineer

    Full Remote · EU · 8 years of experience · English - B2
    Our customer is looking for a self-motivated Lead Software Engineer to join us in developing storage infrastructure to organize and facilitate our business growth. Team is the center of how customers and services store their critical data and trust its...

    Our customer is looking for a self-motivated Lead Software Engineer to join us in developing storage infrastructure to organize and facilitate our business growth. Team is the center of how customers and services store their critical data and trust its security, performance, availability, compliance, and durability, which enables customers to derive intelligence and analytics through AI & BI.

    As a Lead Software Engineer, you will own all aspects of the software development lifecycle, including design, development, testing, deployment, and maintenance of product features in customers' software products. You enjoy fast-paced entrepreneurial environments where you can solve difficult problems using current technologies and tools. You collaborate well with other team members when brainstorming, designing, and implementing new solutions. You will also help the team succeed by thinking about ways to improve processes, suggesting ways to make the team more effective, and mentoring and modeling engineering best practices.

    Requirements:

    • 8+ years of professional experience in software engineering, with a proven track record of owning the entire SDLC—from initial design and cost-optimization to long-term maintenance.
      Expert-level proficiency in C# / .NET / ASP.NET, with a focus on building high-performance, cloud-native solutions within a pure Microsoft tech stack.
    • Deep, hands-on mastery of Azure Services, specifically including extensive experience with AKS (Azure Kubernetes Service), App Services, and Azure Blob Storage.
    • Strong expertise in Microservices architecture and a solid understanding of how services interact within a distributed environment.
    • Advanced API design skills, with proficiency in building and maintaining both RESTful and gRPC interfaces.
    • Proven ability to take full ownership of technical decisions, ensuring systems are scalable, secure, and optimized for performance.
    • Shifted working hours with at least 4 hours of daily overlap with the PST time zone (Pacific Standard Time).


    Responsibility:

    • Design, develop, and maintain high-performance backend systems and APIs using C# and .NET technologies, hosted in Azure and various compliance-level data centers
    • Leverage Azure services like Azure App Services, Azure Kubernetes Service (AKS), Azure Blob Storage, and SQL/No-SQL Databases to build scalable, secure, and reliable cloud-native solutions
    • Build and maintain microservices-based architectures using C#, ASP.NET, and others
    • Design and implement RESTful or gRPC APIs, ensure seamless integration with other systems and products
    • Optimize architecture and solution for scalability and availability, with cost and maintenance in mind
    • Identify and address performance bottlenecks and scalability challenges proactively
    • Align across teams for designs, communicate, and resolve roadblocks
    • Guide and mentor other engineers through design and code reviews
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  • · 103 views · 10 applications · 8d

    Senior .Net Developer

    Full Remote · Ukraine · 4 years of experience · English - B2
    Project Description New long-term project for an Energy client, where we will create a microservice platform to support various business cases. You will be part of a team, where we'll have C# engineers, AQAs, POs, and Scrum Masters. Job Description 4+...

    Project Description

    New long-term project for an Energy client, where we will create a microservice platform to support various business cases. You will be part of a team, where we'll have C# engineers, AQAs, POs, and Scrum Masters.

     

     

    Job Description

    • 4+ years of experience as .Net developer. 
    • Proven experience in working with architects from the client-side
    • Proven experience with Azure, Azure DevOps
    • Proven experience working on a microservice-based project
    • Ability to mentor mid-junior engineers
    • OOP Development, Design Patterns, Best Practices
    • Good English to work with clients directly

     

     

    Job Responsibilities

    • Strong problem-solving and follow-up skills; must be proactive and take initiative
    • Professionalism and ability to maintain the highest level of confidentiality
    • Create robust code and translate business logic into project requirements
    • Develop code using development best practices, and an emphasis on security best practices
    • Leverage technologies to support business needs to attain high reusability and maintainability of current and newly developed systems
    • Provide system design recommendations based on technical requirements
    • Work independently on development tasks with a minimal amount of supervision
    • Write effective unit tests and integration tests to ensure high-quality software delivery
    • Support Lead, Scrum Master and PO
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  • · 103 views · 20 applications · 8d

    Backend Developer (TypeScript, Node.js, AWS)

    Full Remote · Countries of Europe or Ukraine · 6 years of experience · English - B1
    At FluidLabs, we are launching a new direction in collaboration with DocuSign — one of the world’s leading players in digital signatures and contract management. This is a rare opportunity to join a large-scale project and become a top-tier expert across...

    At FluidLabs, we are launching a new direction in collaboration with DocuSign — one of the world’s leading players in digital signatures and contract management.
    This is a rare opportunity to join a large-scale project and become a top-tier expert across the entire DocuSign product ecosystem, building unique expertise with true global value.


    Key responsibilities:

    • Design, develop, and maintain back-end services using Node.js and TypeScript
    • Build and optimize serverless applications on AWS 
    • Work with DynamoDB (data modeling, performance tuning, query optimization)
    • Set up monitoring, logging, and alerting via AWS CloudWatch
    • Implement and maintain secure authentication/authorization flows with OAuth2/OIDC
    • Collaborate with front-end engineers, architects, and product managers to deliver scalable solutions
    • Write clean, maintainable, and well-tested code (TDD when possible)
    • Participate in code reviews, provide feedback, and ensure high code quality
    • Contribute to technical discussions, propose solutions, and share knowledge with the team
    • Troubleshoot production issues, optimize performance, and ensure system reliability

       

    Must-have technical skills:

    • Strong proficiency in TypeScript
    • Hands-on experience with Node.js (building and maintaining production-grade applications)
    • Proven experience with AWS 
    • Solid understanding and implementation of OAuth2 / OIDC (authentication & authorization flows)

       

    Nice to have:

    • Experience working with DocuSign products and building integrations on top of them
    • Hands-on experience with event-driven architectures (SQS, SNS, Kinesis, RabbitMQ, WebSockets)
    • Familiarity with broader AWS ecosystem (API Gateway, S3, Step Functions, IAM policies)
    • Solid grasp of CI/CD workflows (GitLab CI, GitHub Actions, or similar)
    • Knowledge of software design principles (SOLID, DDD, TDD)
    • Some exposure to frontend frameworks (React, Next.js) for seamless integration

       

    What we offer:

    • Long-term collaboration on meaningful projects
    • A passionate team with a healthy, positive culture
    • Enterprise-level projects with real technical challenges
    • Room to grow — both professionally and personally
    • Partial tax compensation
    • Referral bonuses for successful candidate recommendations
    • Paid holidays and time off
       

    Work terms:

    • Working hours: 11:00–20:00 (Kyiv time)
    • Vacation: 24 paid days per year
    • Trial period: 3 months

       

     

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  • · 230 views · 61 applications · 8d

    Middle PHP Developer to $3000

    Full Remote · Ukraine · Product · 2 years of experience · English - B1
    Requirements Strong knowledge of PHP (1+ year of hands-on experience) and Laravel framework (1+ year); Basic understanding of front-end technologies: JavaScript, HTML5, CSS3; Experience with version control systems such as Git, Bitbucket, or...

    Requirements

    • Strong knowledge of PHP (1+ year of hands-on experience) and Laravel framework (1+ year);
    • Basic understanding of front-end technologies: JavaScript, HTML5, CSS3;
    • Experience with version control systems such as Git, Bitbucket, or similar;
    • Hands-on experience integrating third-party APIs (Google, Facebook, and others);
    • High level of self-organization, responsibility, creativity, and professional ethics;
    • Strong communication skills and a proactive mindset. 

      Responsibilities

    • Develop, maintain, and support company websites and web applications;
    • Communicate with clients, clarify requirements, answer questions, and provide effective solutions;
    • Participate in all phases of the software development lifecycle;
    • Follow best practices in coding, security, and data protection, especially when working with sensitive data (API keys, tokens, etc.);
    • Collaborate with the team to improve product quality and performance.

       

      We offer an opportunity to grow professionally, work on interesting projects, and be part of a supportive and dynamic team.

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