Jobs Fullstack

Product details: A comprehensive Engineering Document Management System (EDMS) designed to streamline the management of engineering documents and data throughout their lifecycle. It serves as a centralized repository, ensuring that all stakeholders have access to accurate, up-to-date information, thereby enhancing collaboration and operational efficiency.

Technologies:

• Languages: C#; C++; SignalR, JS/TS; ExtJS 3, Angular, XML/XSLT, JS/HTML,
  Windows applications programming knowledge
• Frameworks: COM/DCOM, .NET Framework and Core, ASP.NET, WCF, XML
  Web Services (SOAP), REST
• Win32 API, Windows Desktop applications - MFC/ATL, Windows Forms, ISAPI
  extensions
• Elastic Search, Publisher, Hyperion, SiteCache (all .NET servers and clients)
• Databases: SQL Server, Oracle, SQL Lite, MS Access,  T-SQL and PSQL
  (Oracle)
• Infrastructure: Teamcity, build pipelines and MAT-pipelines - PowerShell, Azure
  infrastructure, Nuget (work with package managers, also NPM)
• InstallShield, WiX and/or modern setup technologies (web install)
• Windows Applications registration and installation, Windows server management
  (services, sc command line)
• Windows security, Active directory and tools, Windows Networking (NetBios,
  WINS), TCP/IP networking (DNS)
• GitHub and GitHub actions

QA: in-house framework called MAT (Meridian Automated Testing), it is using .NET
Framework.

Requirements:

• 5+ years of experience in development of windows and web applications
• Strong proficiency in C++, C# and experience in listed technologies
• Experience with JavaScript
• 1+ year experience with AI tooling in software engineering space, ideally with GitHub Copilot
• Experience working with proprietary databases
• Experience with integration third party libraries and APIs
• Strong understanding of version control, security best practices, and Agile
  methodologies

• Excellent communication and teamwork skills

   

Nice to have: Some experience working with AutoCAD and verticals, Microstation, Inventor and Revit, Office object model

Responsibilities:

• Support of existing applications (bug fixes, updates/upgrades, technical improvements)
• Writing clean, maintainable, and efficient code while adhering to coding standards and
  best practices
• Active participation in code reviews, sprint planning, and design discussions
• Troubleshooting complex customer issues

Our partner, Tomorrow.io, is a world-class weather intelligence platform that provides accurate real-time weather forecasts. They might help decide the best time to launch a rocket into space or schedule sports finals.

Their core is built on the most up-to-date technologies mixed with a bit of magic algorithms and some AI here and there. Code quality has always been important for the company, resulting in a clean codebase that doesn’t smell.

We’re looking for a Senior Full-stack Engineer who thrives at the intersection of backend scalability and frontend excellence. You’ll design, build, and optimize Tomorrow.io’s weather applications, handling both high-performance data processing and intuitive user experiences.

P.S.: Telling your friends the exact minute it will rain won’t violate the NDA 😉.
Required skills

• 7+ years of full-stack development experience
• Strong frontend expertise: React, Redux, Webpack, MUI, WebGL (a plus)
• AI-First mindset — experience with agentic IDE (Cursor, Claude code, etc), should be familiar with AI-related notions.
• Backend skills: Node.js, Microservices, Cloud (GCP preferred), Databases (MongoDB, PostgreSQL, Redis)
• Product-oriented mindset — delivering scalable, user-friendly applications
• Strong ownership & collaboration skills
• Upper-intermediate or higher level of English

Your day-to-day responsibilities will include

• Develop & optimize scalable backend services (Node.js, microservices, cloud-based architecture).
• Build modern, high-performance UIs with React, Redux, and WebGL.
• Architect, test, and deliver end-to-end features for weather intelligence solutions.
• Collaborate closely with product managers and fellow engineers to drive impact.
• Improve processes & adopt new technologies to continuously enhance performance.
  
  We offer

📈 Constant professional growth and improvement:

• Challenging projects with innovative technologies
• Close cooperation with the clients
• Help with personal development and mentorship

😄 Comfortable, focused work:

• Remote and work-from-home encouraged
• Minimal bureaucracy
• Flexible schedule
• Good hardware

And, of course, all of the traditional benefits in the IT industry.

About the project

European product company developing a Marketing Data Integration & Analytics Platform is looking for a strong Fullstack Developer.

The platform helps clients aggregate and process data from multiple external sources through custom connectors and integrations.

Tech Stack

• Python
• Flask
• React
• Threads
• pytest-xdist

Requirements

• 4+ years of commercial Fullstack experience
• Strong Python experience
• Experience with Flask
• Experience with React
• Understanding of multithreading
• Experience with testing tools (pytest, pytest-xdist)
• Experience building integrations/connectors
• English — B2+

Nice to have

• Experience with data platforms
• Analytics or marketing domain experience

Responsibilities

• Develop backend and frontend features
• Build integrations and data connectors
• Improve platform performance and scalability
• Participate in architecture discussions
• Collaborate with distributed teams

Candidate Locations

Priority:Georgia

ABOUT CLIENT

A dynamic wellness tech venture offering innovative tools to support proactive health management. Its primary product is a smart scale equipped with cutting-edge BIA technology, delivering precise data on key body metrics such as fat percentage, lean mass, and hydration. By merging advanced engineering with a seamless digital experience, it empowers users to make informed decisions about their health.

PROJECT STAGE

live.

REQUIREMENTS

• 6+ years of software engineering experience
• Strong backend expertise (Python, Node.js, Go, Java, etc.)
• Strong frontend expertise (React + TypeScript)
• Strong infrastructure knowledge using GCP (optional AWS, Azure)
• Experience leading or mentoring engineers on a team
• Proven ability to design and deliver scalable full-stack systems
• Solid understanding of APIs, databases, and cloud infrastructure.

NICE TO HAVE:

• Experience in healthcare or regulated environments (HIPAA, FHIR, HL7)
• Experience with data-heavy applications (analytics, time-series)
• Familiarity with AI/LLM integrations.

RESPONSIBILITIES

• Team Leadership & Delivery

  • Lead a cross-functional web team (backend + frontend engineers + AQA + design)
  • Own delivery of features end-to-end: from design to production
  • Mentor engineers, conduct code reviews, and set quality standards
  • Collaborate closely with product, design, and clinical stakeholders

  Architecture & System Design

  • Design and evolve a scalable full-stack architecture
  • Define clean API contracts and data models
  • Ensure maintainability, performance, and reliability across the stack
  • Guide decisions on system structure (modular services, integrations, etc.)
  • Oversee development of:
    • REST APIs for patient data and clinical workflows
    • Time-series data handling (body composition metrics)
    • Background processing and data pipelines
  • Ensure efficient querying, caching, and data integrity
  • Ensure efficient use of GCP-native capabilities.

  Frontend & User Experience

  • Guide development of data-heavy React applications
  • Ensure clear, performant, and intuitive visualization of complex medical data
  • Align frontend architecture with backend capabilities

  Healthcare & Compliance

  • Ensure secure, HIPAA-compliant data handling
  • Implement proper authentication, authorization, and audit logging
  • Support integrations with external systems (EHRs, pharmacy services)

  Performance & Scalability

  • Optimize backend and frontend performance (queries, rendering, data loading)
  • Design systems that scale with growing users and datasets

  Backend & Data Systems

  • Oversee development of:
    • REST APIs for patient data and clinical workflows
    • Time-series data handling (body composition metrics)
    • Background processing and data pipelines
  • Ensure efficient querying, caching, and data integrity
  • Ensure efficient use of GCP-native capabilities.

  Frontend & User Experience

  • Guide development of data-heavy React applications
  • Ensure clear, performant, and intuitive visualization of complex medical data
  • Align frontend architecture with backend capabilities

  Healthcare & Compliance

  • Ensure secure, HIPAA-compliant data handling
  • Implement proper authentication, authorization, and audit logging
  • Support integrations with external systems (EHRs, pharmacy services)

Who are we looking for?

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

Tasks?

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

Why did the job open?

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

Requirements:

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

Good to have:

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

Who are we looking for?

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

Tasks?

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

Why did the job open?

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

Additionally:
The company has the ability to provide employee reservations in accordance with the current legislation of Ukraine.

Requirements:

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

Good to have:

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

On behalf of our Client from the UK, Mobilunity is looking for a Full Stack Developer (Node.js / Vue.js).

Our Client is a fast-growing SaaS company operating in the telecom and subscription billing space. Their platform supports billing operations for telecom providers and service companies, focusing on reliability, scalability, and continuous product growth.

They are looking for a Full Stack Developer with strong hands-on experience across both backend and frontend. You will work on building new features, improving existing functionality, and supporting integrations across a modern, cloud-oriented platform.

This is a hands-on role with significant ownership across the full stack — from UI and APIs to event-driven services and data.
 

Responsibilities:
Full Stack Development

• Design, build, and maintain platform components using Node.js, TypeScript, and Vue.js (Nuxt)
• Deliver features end-to-end, from design to production
• Work across backend services, APIs, and frontend interfaces
• Troubleshoot and resolve complex production issues
• Deliver clean, reliable, and maintainable solutions

Architecture & System Design

• Apply API-first and cloud-first principles
• Build and maintain RESTful APIs and event-driven systems (queues, workers, webhooks)
• Contribute to system evolution from legacy solutions to cloud-native architecture
• Balance performance, cost, and scalability in technical decisions

Code Quality & Engineering Practices

• Follow best practices and coding standards
• Contribute to unit and integration testing
• Participate in code reviews and CI/CD processes
• Ensure long-term maintainability of the codebase

DevOps & Collaboration

• Work with Docker-based and Linux environments
• Collaborate with DevOps on CI/CD pipelines (GitHub Actions or similar)
• Support cloud infrastructure (AWS services such as ECS, Lambda, SQS, RDS)
• Improve development workflows across environments
   

Requirements:

• 4–7 years of commercial full stack development experience
• Strong experience with Node.js and TypeScript
• Solid frontend experience with Vue.js / Nuxt (or similar frameworks)
• Experience with REST APIs and event-driven architectures
• Experience with Git workflows, pull requests, and CI/CD
• Familiarity with Docker and Linux environments
• Experience with relational databases (MySQL or similar)
• Ability to work independently and manage priorities
• Good spoken and written English
   

Nice to have :

• Experience with AWS (ECS, Lambda, SQS, RDS/Aurora)
• Experience with legacy technologies such as PHP or Perl
• Experience with Oracle databases
• Python knowledge
• Experience with SaaS platforms or multi-tenant systems
• Familiarity with testing frameworks (Jest, Vitest, etc.)
   

In return we offer:

• The friendliest community of like-minded IT-people
• Open knowledge-sharing environment – exclusive access to a rich pool of colleagues willing to share their endless insights into the broadest variety of modern technologies
• Mobilunity Medical Insurance program designed to attend our teams’ needs
• Paid vacations and sick leaves, including 5 paid days per year that don’t require a sick note
• Perfect office location in the city-center (900m from Lukyanivska metro station with a green and spacious neighborhood) or remote mode engagement: you can choose a convenient one for you, with a possibility to fit together both
• No open-spaces setup – separate rooms for every team’s comfort and multiple lounge and gaming zones
• English classes in 1-to-1 & group modes with elements of gamification
• Neverending fun: sports events, tournaments, music band, multiple affinity groups
   

Come on board, and let’s grow together!

About Altum

Altum Software is a technology company building AI-powered infrastructure for sales and business automation. We design and develop internal systems that replace manual workflows with autonomous AI agents — from lead qualification pipelines to customer communication layers.

We're a small, senior team that moves fast and builds things that actually work in production. No corporate overhead, no pointless meetings — just interesting problems and real ownership over what you ship.
 

The Role

We're looking for a Software Engineer to join the team building our AI automation infrastructure. You'll work on systems that operate at scale — managing concurrent sessions, orchestrating background jobs, integrating LLMs into real-world workflows, and making sure everything stays stable when it matters.

This is a hands-on engineering role with real architectural responsibility. You'll work directly with the founding team and have full visibility into product decisions.
 

What You'll Be Working On

• Building AI SDR systems — autonomous agents that manage communication pipelines, qualify leads, and move them through the funnel without manual intervention
• Developing browser automation layers that interact with web platforms on behalf of AI agents — handling sessions, actions, and anti-detection logic at scale
• Integrating LLMs (Claude API) for real-time message classification, context-aware response generation, and conversation management across hundreds of active threads simultaneously
• Building the job orchestration layer — queues, background workers, concurrency handling — that keeps everything running reliably at scale
• Connecting the system with external tools: CRM, calendar booking, messaging platforms, alert systems
• Designing internal AI agents that handle repetitive customer-facing workflows autonomously, escalating to humans only when needed

Requirements

• 2+ years of commercial experience in backend or fullstack development
• Strong understanding of system design — queues, background jobs, concurrency, failure handling
• Experience working with relational databases (PostgreSQL or similar)
• Comfortable integrating third-party APIs and navigating unfamiliar documentation quickly
• Systematic thinker — you see how components compose into a reliable whole
• Genuine curiosity about AI tooling — you follow what's happening in the space and like to experiment

Nice to Have

• Experience with Playwright, Puppeteer, or any browser automation framework
• Familiarity with anti-detect browsers or browser fingerprinting concepts
• Prior experience working with LLM APIs (Claude, OpenAI, or similar)
• Understanding of bot detection mechanisms and mitigation strategies
• Experience with Redis / BullMQ or similar job queue systems

What We're Really Looking For

Technical skill matters, but it's not the whole picture. We're looking for someone who picks things up fast, takes ownership without being asked, and genuinely enjoys working at the intersection of AI and automation. You don't need to have done exactly this before — but you should be the kind of engineer who looks at a complex system and wants to understand how it works end to end.

If you've never built browser automation before but the problem space excites you — reach out anyway.
 

What We Offer

• Fully remote, async-friendly environment
• Flexible schedule — outcomes over hours
• Direct collaboration with the founding team
• Real ownership over technical decisions
• Long-term engagement for the right person

We are looking for a fast-moving full-stack developer to help finish and launch Degen Index, a paid live dashboard that tracks crypto whales, sports betting line movement, options flow, prediction markets, congressional trade disclosures, and market-moving news.

MVP link: https://stirring-narwhal-ecf8b3.netlify.app/

The MVP is already built, but needs cleanup and proper integrations. Immediate work includes Supabase auth/database, Stripe Checkout and webhooks for one-time paid access, API integrations, UI/UX cleanup, protected dashboard access, and Netlify deployment.

We need someone who can move quickly, work with an existing MVP, and help get the product live and functional fast.

SBC Performance drives scalable growth for brands ready to expand globally.

Working across eCommerce, health & wellness, education, and entertainment, our team helps brands acquire customers faster and scale across 26+ global markets. We combine data-driven paid media, performance creative, and advanced analytics to turn marketing into a predictable revenue engine.
Trusted by 200+ companies, managing $150M+ in ad spend.

Scale faster. Grow smarter.

Now, we’re looking for a Full Stack Engineer to join our AdTech product team. Someone passionate about building scalable, data-driven systems that power performance marketing automation and analytics.

Key Responsibilities:

• Design, build, and maintain frontend and backend services for the internal AdTech platform.
• Develop Angular (v12+) applications with TypeScript, using reactive patterns (RxJS, Angular Material, reactive forms).
• Implement and optimize state management and change detection for high-performance UI.
• Build and maintain Node.js microservices with TypeScript and RESTful APIs.
• Work with PostgreSQL (TypeORM) and Firestore (NoSQL) for data modeling and storage.
• Implement asynchronous patterns, error handling, and background data processing.
• Integrate with Google Cloud Platform (GCP): Cloud Functions, Firestore, Cloud Storage, and Secret Manager.
• Utilize Redis caching, message queues (RabbitMQ / Pub/Sub), and efficient pagination/filtering for large datasets.
• Collaborate with product, analytics, and QA teams to deliver robust, scalable AdTech solutions.

Requirements:

• 3+ years of experience as a Full Stack Engineer
• Experience with Node.js, Angular (v12+), and TypeScript in production environments
• Strong knowledge of RxJS, Angular Material, and reactive forms
• Experience with state management and change detection optimization
• Experience with microservices architecture and RESTful APIs
• Proficiency with PostgreSQL (TypeORM) and Firestore (NoSQL)
• Understanding of asynchronous patterns and error handling
• Experience deploying and managing Cloud Functions (triggers, logs, monitoring)
• Knowledge of Firestore queries, indexing, and data modeling
• Familiarity with Cloud Storage and Secret Manager
• Docker basics for local development and testing
• Experience with message queues (RabbitMQ or Pub/Sub)
• Redis caching and session management
• Handling large datasets (pagination, filtering, sorting)

Nice to Have

• Experience with ad platform APIs (TikTok Business API, Facebook Graph API, Google Ads API)
• Working knowledge of BigQuery for analytics and data aggregation
• Experience building worker pools and parallel processing pipelines
• Familiarity with CI/CD pipelines and deployment automation
• Understanding of AdTech concepts — campaigns, budgets, pixels, conversions
• Experience with high-volume, real-time data systems

What We Offer

• Hybrid job in Prague/Warsaw or remote
• Competitive compensation
• Flexible working hours: we start our operation day between 9:00 — 11:00 CET
• All necessary equipment
• Paid vacation and sick leaves
• Educational support: reimbursement of certification, training, and a knowledge-sharing atmosphere
• Company events and multiple internal activities
• Open feedback and transparent direct communication

S-PRO, a top-tier Digital Innovation and Software Engineering company. We specialize in providing cutting-edge services for fast-growing businesses and enterprises, with a strong focus on Finance, Renewable Energy and Healthcare domains and expertise in AI, Blockchain and Data Science. Our team of over 200 dedicated professionals works tirelessly across our global offices to develop innovative digital solutions that drive sustainable business value and increase our client’s competitiveness in a dynamic digital landscape.

Our client is seeking to hire a skilled and experienced full-time, Full Stack Developer (40% front-end web development (ReactJS) and 60% back-end development (Microsoft C#/.Net)) to serve as a technical expert in the design, architecting, development, coding, testing, and debugging of our next generation technology platforms.
We are looking for an analytical problem-solver, someone who is an effective communicator, and can work independently while also working with others. This role is a great opportunity to collaborate with experienced technology professionals, gain understanding of what our clients need to be successful all while working entirely remotely.

Job requirements
 

Responsibilities

• Develop and maintain backend services using C# / .NET Core
• Build and enhance frontend applications using React (Next.js)
• Work with Microsoft SQL Server (queries, optimization, data handling)
• Implement UI components using Material UI / DevExpress
• Develop background jobs and supporting tools in .NET Core
• Collaborate with the team on technical solutions and architecture
• Participate in deployment and support of the application

Requirements

• Strong experience with C# / .NET / .NET Core
• Hands-on experience with React.js, Next.js
• Solid experience with Microsoft SQL Server
• Experience building and integrating REST APIs
• Understanding of deployment processes, hosting, and cloud environments
• Experience with Git and Azure DevOps
• Upper-Intermediate+ level of English to communicate with client effectively
• Experience with unit testing (TDD, mocking)
• Experience with Docker / Kubernetes
• Basic knowledge of OCR / image processing
• Experience working with PDF / TIFF formats

What we offer:

• Long team focus: we create an environment of transparent communication, and minimal bureaucracy, which leads to long-term relationships.
• Development of niche expertise: we are working in several niches, such as FinTech, healthcare, and logistics. Therefore, our employees can develop their own expertise in these domains.
• Continuous learning: we create employee development plans / personal roadmaps /quick promotion processes.
• Internal career development: 80% of our current executives were promoted to those positions within S-PRO. We encourage initiative. If a person wants to set new challenges and grow, we will definitely support them.

Benefits and perks:

• Flexible schedule.
• Remote work model.
• Medical insurance
• Paid vacations
• Paid Sick-leaves.
• Paid State holidays.

IT Craft запрошує Senior Full Stack .NET Developer з досвідом у розробці баз даних приєднатися до компанії на 6-місячний контракт для участі в міграції кастомних проєктів з VB6 на C#/.NET 10 (переважно для підтримки інтеграції з Microsoft CRM та Cloud Dynamics CRM, кастомізації, обробки даних і розробки плагінів).

Вимоги:

• 5+ років комерційного досвіду роботи з .NET та C# (Dependency Injection, async/await, config/logging, SDK-style projects, NuGet), ASP.NET;
• Досвід роботи з Angular або React;
• Знання legacy-стеку (VB6 + VBA/Access — читання/налагодження), .NET Framework 4.7;
• Глибокі знання реляційних баз даних та Dataverse Web API (CRUD, OData-запити, select/expand, batching, paging), моделі даних (таблиці, зв’язки, поля вибору) та оцінки впливу змін у схемі;
• Досвід роботи з T-SQL (збережені процедури, представлення/функції, тригери);
• Досвід роботи з доступом до даних за допомогою ADO.NET або EF Core, включаючи обробку тайм‑аутів та стійкість до збоїв;
• Досвід роботи із автентифікацією через реєстрації додатків Entra ID (client credentials та delegated flows);
• Досвід роботи з інтеграціями з Microsoft CRM та Cloud Dynamics CRM;
• Досвід роботи з Azure Portal;
• Відмінні навички вирішення проблем, аналізу і дебагінгу;
• Здатність створювати стислу технічну документацію та опис міграцій;
• Відмінні навички планування та управління часом, здатність передбачати ризики та керувати ними;
• Обов’язковий рівень англійської — Upper-intermediate та вище;
• Досвід code review, аналізу вимог буде перевагою.

IT Craft пропонує:

• Конкурентну оплату відповідно до кваліфікації;
• Гнучкий графік, дистанційну роботу;
• Можливість працювати над технічно складним проектом з міграціями;
• Компенсацію для занять спортом;
• Внутрішнє навчання з англійської мови;
• Дружню команду відкритих людей.

Будь ласка, надішліть нам ваше CV.

Відгукуючись на вакансію, ви погоджуєтеся на обробку ваших персональних даних відповідно до Політики конфіденційності IT Craft, доступної за посиланням: https://itechcraft.com/datenschutz/.

IT Craft invites a Senior Full Stack .NET Developer with exposure to database development to join the company for a 6-month contract to assist in rebuilding custom VB6 projects in C# / .NET10 (mainly to support Microsoft CRM and Cloud Dynamics CRM integration, customization, data processing and plugin development).

Requirements:

• At least 5 years of commercial experience in working with .NET and C# (Dependency Injection, async/await, config/logging, SDK-style projects, NuGet), ASP.NET;
• Experience with Angular or React;
• Knowledge of the legacy stack (VB6 + VBA/Access reading/debugging, .NET Framework 4.7);
• Strong background in relational databases and Dataverse Web API (CRUD, OData queries, select/expand, batching, paging), Data model (tables, relationships, choice fields) and managing schema change impact;
• Experience with T-SQL (Stored procedures, views/functions, triggers);
• Experience with data access using ADO.NET or EF Core, including handling timeouts and resiliency patterns;
• Experience with authentication via Entra ID app registrations (client credentials and delegated flows);
• Experience with Microsoft CRM and Cloud Dynamics CRM integration;
• Experience with Azure Portal;
• Excellent problem-solving, analytical and debugging skills;
• Ability to produce concise technical documents and migration notes;
• Excellent planning, time management skills, ability to predict and negotiate risks;
• Upper-intermediate English or higher is a must;
• Experience in code review, requirements analysis will be a plus.

IT Craft offers:

• Competitive compensation according to the qualifications;
• Flexible working hours, remote work;
• Opportunity to work on a technically challenging migration project;
• Reward for sports activities;
• In-house English training;
• A friendly team of open-minded people.

Please send us your CV.

Requirements:

• 1–3 years of commercial development experience;
• Strong knowledge of JavaScript and TypeScript;
• Experience with Node.js and/or Bun.js;
• Experience with Vue.js is preferred; React is also acceptable;
• Good understanding of full-stack web application development;
• Understanding of WebSockets and real-time communication;
• Experience working with PostgreSQL;
• Good understanding of asynchronous programming;
• Confident working with the Git version control system;
• Strong analytical and problem-solving skills;
• Intermediate level of English.

Would be a plus:

• Experience with modern backend architecture and API design;
• Experience working with ORMs or query builders;
• Familiarity with deployment, CI/CD, and cloud environments;
• Experience building scalable products or SaaS platforms.
• Experience using AI tools for coding to improve productivity;

Responsibilities:

• Develop and maintain full-stack product features with attention to quality and performance;
• Participate in end-to-end development, from idea to production;
• Build both backend and frontend parts of the application;
• Work with real-time features using WebSockets;
• Deliver features quickly and efficiently.

Responsibilities

• Maintain and extend existing functionality in a large legacy PHP 7.4 codebase.
• Design and implement robust solutions for bug fixes, new features, and technical debt reduction.
• Optimize database queries and schema design using PostgreSQL.
• Refactor old modules and participate in gradual modernization plans.
• Collaborate with DevOps and QA to ensure system stability and deployment continuity.
• Participate in technical discussions, code reviews, and architecture planning.
• Work closely with cross-functional teams including product managers and front-end developers.

Requirements

• 5+ years of experience with PHP, including work with legacy systems (ideally PHP 7.x).
• Strong proficiency with PostgreSQL or similar relational databases.
• Deep understanding of object-oriented programming, software design patterns, and MVC architecture.
• Experience with RESTful APIs and integration of third-party services.
• Solid front-end skills with JavaScript and at least one modern framework (React or Vue.js).
• Version control with Git.
• Strong debugging and performance profiling skills.

Nice to Have

• Knowledge of Python for scripting or integration purposes.
• Experience working with SOAP web services and legacy protocols.
• Familiarity with WebSockets and TCP socket-level communication.
• Exposure to systems migration, re-architecture, or code modernization projects.

We Offer

• Competitive salary
• Flexible schedule
• Social package
• Courses, webinars, seminars to increase professional skills
• Snacks & fruit, foosball, fun office environment
• Horizontal hierarchy. No micromanagement pressure
• Open company culture where your ideas and initiatives are valued
• Regular team building & corporate events
• International projects

About the Project

A B2B SaaS platform purpose-built for a niche vertical in the construction industry is looking for an experienced full-stack engineer to join an early-stage team. You'll take end-to-end ownership of features - from database schema and backend API through to frontend UI and E2E tests - while also raising the overall quality and polish of the product. The engineering team is currently led by a CTO, so you'll be working closely with the product direction and have real influence over technical decisions.

Tech Stack

Backend: Java 21, Spring Boot 3.2, Gradle, PostgreSQL 16, Flyway, Redis 7
Frontend: React 18, Vite, Tailwind CSS, Shadcn/UI, TanStack Query
Processing: Python 3.12+, FastAPI, LLM integrations
Infrastructure: Docker, Keycloak, Azure Blob Storage, Azure Service Bus, AWS Bedrock (EU)
Testing: Playwright, JUnit, pytest

Responsibilities

- Own features end to end - take a spec through backend API design, database modeling, frontend implementation, and into production with full test coverage
- Consistently raise the UI/UX quality of the platform: components, design tokens, dialogs
- Write Playwright E2E tests as a natural part of delivery; critical flows ship with coverage, not after
- Model domains and write non-trivial queries in PostgreSQL; think about data structure early
- Participate in code review and contribute to a shared standard for code quality
- Use AI coding tools (Cursor, Claude Code, Copilot, or equivalent) as an active part of your daily workflow 
- Contribute to the LLM processing engine if that's a direction you want to grow into (opportunity, not requirement)

What We're Looking For

- 3+ years of commercial full-stack experience; Java/Spring Boot is the primary backend stack, React 18 is the primary frontend 
- Writes E2E tests as part of delivery, not as an afterthought 
- Playwright experience or equivalent required
- Solid relational database skills: comfortable with domain modeling and queries that go beyond simple CRUD
- Uses AI coding tools daily and can speak concretely to how they've accelerated their work
- UI/UX eye - know the difference between functional and polished, and care about closing that gap
- Self-directed in a startup context: able to find priorities independently, ask the right questions, and move without hand-holding
- Strong written and spoken English - the team communicates clearly and expects the same

Nice to Have

- Hands-on experience with Tailwind + Shadcn specifically
- Experience with Python/FastAPI in a production context
- Familiarity with Azure (Blob Storage, Service Bus) or AWS Bedrock
- Keycloak or another OIDC/SAML auth provider in production
- Practical AI engineering experience: evals, prompt structure, structured output, RAG, hallucination mitigation 
- shipped LLM-powered features in production
- Domain exposure to construction, AEC, or B2B SaaS