Jobs Fullstack

We are looking for a Junior Strong/Middle Full Stack Developer to join a USA-based project and take ownership of building and maintaining third-party integrations on a modern B2B platform. Our product helps businesses make smarter use of their data by connecting external tools — file storage, communication platforms, and project management systems into an AI-powered knowledge layer. You’ll be working with a skilled team on a scalable, high-impact system using up-to-date technologies.

Requirements:
— 2+ years of experience in web development with TypeScript and Node.js across both frontend and backend.
— Strong experience with React, including modern patterns (Server Components, Server Actions, hooks, component architecture).
— Hands-on experience building and consuming REST APIs, including OAuth 2.0 authorization flows (authorization code grant, token refresh, service-to-service auth).
— Working knowledge of relational databases and ORMs (we use PostgreSQL and Prisma).
— Experience with background job processing, task queues, or worker-based architectures (we use BullMQ with Redis/Valkey).
— Familiarity with Next.js (App Router) or a similar full-stack framework.
— Proficiency with Git and comfort working in a monorepo (pnpm + Turborepo).
— Strong problem-solving skills and attention to detail — integration work requires debugging across multiple systems and APIs.
— A proactive, organized, and independent approach to work. You’ll own features end-to-end, from database schema to UI.
— Upper-intermediate or higher English proficiency, enabling effective communication within an international team.

Nice to have:
— Familiarity with third-party APIs.
— Experience with AI/LLM integrations or working on AI-adjacent products.
— Familiarity with OpenTelemetry, structured logging, or observability tooling.

Responsibilities:
— Design, build, and maintain third-party integrations end-to-end: OAuth flows, API route handlers, database models, background sync workers, and admin/user-facing configuration UIs.
— Implement reliable data crawling and synchronization pipelines that run as background tasks, handling rate limiting, pagination, error recovery, and incremental sync.
— Work with PostgreSQL (Prisma) to design schemas for integration credentials, sync state, and external resource mappings.
— Build admin setup flows and user-facing integration pages using React, Next.js Server Components.
— Collaborate with the team on architecture decisions for new integrations.
— Ensure production reliability through proper error handling, OpenTelemetry instrumentation, and structured logging.
— Contribute to shared packages in our monorepo — integrations library, server actions, operations queue, and UI components.

Interview stages:
— HR interview (30 minutes).
— Technical interview (1 hour).
— Interview with the customer (1 hour).
— Job offer 🎉🎉🎉

We offer:
— Competitive salary.
— Challenging tasks and projects.
— Opportunities for professional development and growth.
— Flexible working hours.
— New hardware.
— Free English lessons.
— Table tennis and yoga classes.
— Availability of generators and Starlinks in the office.
— Small gym in the office.
— Adjustable height tables.
— Regular office fruit delivery and other benefits.

Let’s create value together!

Looking for a Middle Strong Full Stack Developer to join a USA-based project, and take ownership of building and maintaining third-party integrations on a modern B2B platform. Our product helps businesses make smarter use of their data by connecting external tools — file storage, communication platforms, and project management systems into an AI-powered knowledge layer. 
 

Requirements:
— 3+ years of experience in web development with TypeScript and Node.js across both frontend and backend.
— Strong experience with React, including modern patterns (Server Components, Server Actions, hooks, component architecture).
— Hands-on experience building and consuming REST APIs, including OAuth 2.0 authorization flows (authorization code grant, token refresh, service-to-service auth).
— Working knowledge of relational databases and ORMs (we use PostgreSQL and Prisma).
— Experience with background job processing, task queues, or worker-based architectures (we use BullMQ with Redis/Valkey).
— Familiarity with Next.js (App Router) or a similar full-stack framework.
— Proficiency with Git and comfort working in a monorepo (pnpm + Turborepo).
— Strong problem-solving skills and attention to detail — integration work requires debugging across multiple systems and APIs.
— A proactive, organized, and independent approach to work. You’ll own features end-to-end, from database schema to UI.
— Upper-intermediate or higher English proficiency, enabling effective communication within an international team.

Nice to have:
— Familiarity with third-party APIs.
— Experience with AI/LLM integrations or working on AI-adjacent products.
— Familiarity with OpenTelemetry, structured logging, or observability tooling.
 

Responsibilities:
— Design, build, and maintain third-party integrations end-to-end: OAuth flows, API route handlers, database models, background sync workers, and admin/user-facing configuration UIs.
— Implement reliable data crawling and synchronization pipelines that run as background tasks, handling rate limiting, pagination, error recovery, and incremental sync.
— Work with PostgreSQL (Prisma) to design schemas for integration credentials, sync state, and external resource mappings.
— Build admin setup flows and user-facing integration pages using React, Next.js Server Components.
— Collaborate with the team on architecture decisions for new integrations.
— Ensure production reliability through proper error handling, OpenTelemetry instrumentation, and structured logging.
— Contribute to shared packages in our monorepo — integrations library, server actions, operations queue, and UI components.

Interview stages:
— HR interview (30 minutes).
— Technical interview (1 hour).
— Interview with the customer (1 hour).
— Job offer 🎉🎉🎉
 

We offer:
— Competitive salary.
— Challenging tasks and projects.
— Opportunities for professional development and growth.
— Flexible working hours.
— New hardware.
— Free English lessons.
— Table tennis and yoga classes.
— Availability of generators and Starlinks in the office.
— Small gym in the office.
— Adjustable height tables.
— Regular office fruit delivery and other benefits.

Let’s create value together!

We are looking for a trainee in Software Development who wants to grow into a Full Stack Developer. You should be a self-motivated person, eager to learn and apply modern technologies (including AI) to build real solutions for the company. You will work on internal tools, automations, and custom software across front-end and back-end: user interfaces, APIs, databases, integrations, and deployments.

You won’t know everything on day one, but you will learn quickly. Expect to contribute to real company projects within your first months. You will work closely with experienced developers and receive mentorship. Over time you should take ownership of small tasks and grow into an independent engineer. This is a long-term opportunity and a potential career path, not just an internship.

What to expect from your work

Tech stack you will work with for sure:

• JavaScript/TypeScript
• React
• Node.js
• REST APIs
• PostgreSQL / MongoDB
• Git & GitHub

AI-related stack

• OpenAI API (automation, text generation, integrations)
• Cursor / AI-assisted development tools

Domains & areas

Business-related

• Internal tools & dashboards
• Business process automation
• Operations & CRM systems

Tech-related

• Front-end development (React UI)
• Back-end development (Node.js APIs)
• Database design & queries
• API integrations
• Basic DevOps & deployment

Things you may work with later

• Next.js
• Docker
• AWS / DigitalOcean
• CI/CD (GitHub Actions)
• Microservices architecture

• Infrastructure as Code

   

Requirements for the candidate

Must have:

• Basic knowledge of JavaScript
• Understanding of how web applications work (frontend + backend basics)
• Strong motivation to learn and grow

• Full Stack Development

   

Will be a plus:

• Experience with React or Node.js (even pet projects)
• Understanding of REST APIs
• Experience with databases
• Familiarity with Git

No required:

• Commercial experience
• Perfect English
• Knowledge of the full tech stack

We care more about your learning ability, mindset, and motivation.

We encourage candidates to apply even if they do not match 100% of the list.

Mentorship and growth path

• Work in a team with other selected trainees — Month 1
• Trainee position — Months 2–4

• Review and potential move to Junior Full Stack Developer position

   

About the company

We provide:

• Custom Software Development Services
• UX/UI Design Services
• Recruitment Services
• Outstaffing Services

We believe in people, because that is the core of any company: clients and employees.

We value people who are smart, proactive, and genuinely enjoy what they do.

At Devima Solutions, you’ll join a team of engineers building modern web applications for international clients. As a Trainee Full Stack Developer, you’ll gain hands-on experience working on real-world projects while learning best practices in both backend and frontend development.

About the Role
This is an entry-level opportunity designed for candidates who want to grow into a full-stack developer role. You’ll work closely with experienced engineers, contribute to real features, and develop practical skills that go beyond theory.

What You’ll Do

• Assist in developing backend services using Node.js
• Support frontend development (UI components, user flows)
• Work with APIs and integrate frontend with backend systems
• Fix bugs and improve existing features
• Participate in code reviews and team discussions
• Write clean and maintainable code

Your Growth Path
As a Trainee, you will:

• Learn how real production systems are built
• Gain experience across both frontend and backend
• Work with modern tools and technologies
• Gradually take ownership of small features
• Grow into a Middle Full Stack Developer role

Tech Stack (You’ll Learn & Use)

• Backend: Node.js, Express.js, Nest.js
• Frontend: React.js, Next.js, Vue.js, Nuxt.js.
• APIs: REST
• Databases: SQL / NoSQL
• Tools: Git

Requirements

• Basic knowledge of JavaScript
• Understanding of how web applications work
• Interest in full-stack development
• Basic Git knowledge
• English level: B1+
• Strong motivation to learn and grow

Nice to Have

• Pet projects (frontend, backend, or full stack)
• Familiarity with any JS framework (React, Vue, etc.)
• Basic understanding of APIs

We Offer

• Mentorship from experienced developers
• Real commercial project experience
• Supportive and friendly team
• Clear career growth path
• Learning and development opportunities
• 18+4 paid days off
• MacBook Mini + modern tools
• Learning budget (courses, AI, conferences)

About Us

We’re developing a next-generation platform that simplifies how teams manage virtualized and containerized environments. This is a real, production system, not a prototype, designed for scalability, performance, and deep integration with modern infrastructure technologies.

As a Full Stack Developer, you’ll work across the entire stack, contributing to core platform capabilities and solving complex infrastructure challenges.

From an architecture perspective, the platform includes

• Backend services (Node.js) for orchestration logic and integrations
• API layer (REST / GraphQL) designed for scalability and extensibility
• Frontend (Svelte) providing a reactive UI for complex workflows
• Infrastructure integrations with virtualization and container systems

Key technical challenges

• Designing scalable API services for infrastructure operations
• Handling asynchronous workflows (provisioning, deployments, lifecycle events)
• Maintaining state consistency across distributed systems
• Implementing secure integrations with external platforms
• Optimizing performance for real-time infrastructure management

Responsibilities

• Design and develop backend APIs using Node.js
• Build and enhance frontend features using Svelte
• Integrate frontend with backend services and infrastructure APIs
• Implement new features across the full stack
• Work with VMware and Kubernetes integrations
• Ensure code quality through testing and code reviews
• Collaborate with engineers and product stakeholders

Your Role
As a Full Stack Developer, you will:

• Own features end-to-end (design → development → deployment)
• Work across backend services and frontend applications
• Contribute to infrastructure orchestration and integrations
• Build scalable, maintainable, and secure solutions
• Improve system performance and reliability

Tech Stack

• Backend: Node.js
• Frontend: Svelte
• APIs: REST / GraphQL
• Infrastructure: Kubernetes, VMware vSphere / vCenter
• Other: Git, CI/CD

Requirements

• Strong experience with Node.js
• Experience working with Kubernetes
• Solid understanding of API development (REST / GraphQL)
• Experience with Svelte (or similar modern frontend frameworks)
• Familiarity with VMware environments
• Understanding of scalable system design
• Experience with Git

Nice to Have

• Experience with infrastructure or DevOps environments
• Knowledge of distributed systems
• Experience with performance optimization
• Familiarity with event-driven or microservices architectures

We Offer

• Real product experience with visible impact
• Work on a production-grade, high-impact platform
• Ownership of meaningful features
• Exposure to modern infrastructure technologies
• Growth across full stack and system design
• Collaboration with an experienced engineering team
• Flexible work format (Office / Hybrid/Remote)
• 18+4 paid days off
• MacBook Pro + modern tools
• Learning budget (courses, AI, conferences)

About Lilypad Learning

Lilypad Learning is a modern software solution for special education teams in K-12 school districts. Our platform helps schools and districts manage complex workflows across evaluations, IEPs, compliance, documentation, communication, and service coordination.

We believe the teams supporting students deserve software that is powerful, intuitive, and reliable. We are applying AI in practical ways that reduce administrative burden, improve data quality, accelerate workflows, and help educators make better decisions with confidence.

About the Role

We’re looking for a Software Engineer to help build and scale Lilypad’s core platform. This is primarily a full-stack product engineering role for someone who can ship polished user-facing features, design reliable backend systems, and model complex workflows in a thoughtful, scalable way.

You’ll work across the stack on the core product used by educators, service providers, case managers, and district administrators. Much of the role is classic SaaS product engineering: building CRUD features, designing APIs, improving performance and reliability, and delivering intuitive workflows. Experience with applied AI is highly preferred, especially if you’ve helped ship practical AI-powered product features, but strong full-stack engineers without deep AI specialization are encouraged to apply.

What You’ll Do

• Design, build, and maintain customer-facing product features across the frontend, backend, and database layers.
• Develop and improve core workflows for districts, schools, students, cases, documents, and operational processes.
• Build intuitive, high-quality experiences that simplify complex workflows for educators and administrators.
• Design and implement APIs, services, background jobs, and data models that support scalable product development.
• Improve performance, reliability, maintainability, and developer velocity across the platform.
• Partner closely with product, design, engineering, and domain experts to turn user needs into polished solutions.
• Contribute to architecture decisions, mentor other engineers, and help raise the bar for technical execution.

• Where relevant, contribute to AI-powered features such as summarization, document analysis, search, structured extraction, and workflow assistance.

   

What We’re Looking For

Required Qualifications

• 5+ years of software engineering experience building and shipping production applications.
• Strong experience building full-stack web products, including frontend, backend, APIs, and relational data models.
• Experience building and maintaining customer-facing product features in production environments.
• Strong proficiency in TypeScript and JavaScript
• Experience with modern frontend development, ideally with React, TanStack, and TypeScript.
• Experience designing and building backend services with Node.js or similar application frameworks.
• Strong understanding of databases, application architecture, API design, and software design fundamentals.
• Experience writing clean, testable, maintainable code and operating production systems responsibly.
• Hands-on experience shipping applied AI or LLM-powered features, or strong experience building production software with a clear path into applied AI work.
• Strong product intuition and ability to make thoughtful tradeoffs between speed, complexity, scalability, and user experience.

• Excellent communication and collaboration skills in a cross-functional environment.

   

Preferred Qualifications

• Experience building AI-powered product features in production.
• Familiarity with LLM application patterns such as retrieval, structured outputs, semantic search, and evaluation.
• Experience with document intelligence, OCR, extraction systems, or knowledge ingestion pipelines.
• Experience with vector search, hybrid retrieval, reranking, or search relevance optimization.
• Experience with workflow automation, event-driven systems, or background job orchestration.
• Experience building software in compliance-conscious or high-trust environments such as education, healthcare, or fintech.

• Startup experience or comfort operating in ambiguous, rapidly evolving product environments.

   

What Success Looks Like

In this role, success means you:

• ship high-quality product features across the stack that users rely on every day
• improve core workflows through thoughtful software design and strong engineering execution
• build AI capabilities that are practical, measurable, and trusted by users
• contribute to a platform that is scalable, maintainable, and adaptable as the company grows
• help Lilypad become a category-defining product in both workflow software and applied AI for special education

Our Engineering Culture

You’ll work in a modern product engineering environment with a strong emphasis on pragmatic architecture, product quality, and execution. 

Depending on the project, you may work across technologies such as:

• TypeScript / Node.js
• Next.js 16 and React 19
• PostgreSQL / Supabase
• Docker / AWS
• Background jobs and event-driven workflows
• Analytics, observability, and evaluation tooling
• LLM platforms, vector search, and retrieval infrastructure

Why Join Lilypad

• Build software that has real impact on educators, students, and families.
• Work on meaningful product and engineering challenges in a high-trust domain.
• Join a team that values strong engineering fundamentals, product quality, and ownership.
• Have significant ownership over architecture, product direction, and technical standards.
• Help shape practical AI capabilities in a platform that is already in production.

About Us

Smart Capital Center is an end-to-end, AI-powered platform for Commercial Real Estate (CRE) investment and financial management. We power real-time underwriting, asset management, and portfolio analytics through a combination of live data, workflow automation, and AI-driven insights.

Operating at the intersection of Generative AI, finance, and real estate, we are building systems that digitize and simplify complex financial workflows.

Our clients include leading institutions such as JLL, Pacific Life Insurance Company, and KeyBank. We are a lean, high-performance team building category-defining technology in a $17 trillion industry.

The Role

We are looking for a Senior Fullstack Engineer / Team Lead who is equally strong in frontend and backend development and thrives in a hands-on, high-ownership environment.

This is a player-coach role—you will actively contribute to the codebase while helping guide technical decisions, system design, and engineering quality.

You will build end-to-end features across the stack, working on both data-intensive backend systems and high-performance, user-facing applications.

What You Will Do

Fullstack Development (Core Responsibility)

• Design, build, and ship end-to-end features (backend → API → frontend)
• Develop scalable backend services and APIs
• Build responsive, high-performance frontend applications (React/TypeScript)
• Own features from design through deployment
• Ensure clean integration between frontend, backend, and data layers

Frontend Engineering (Strong Focus)

• Build complex, data-driven user interfaces
• Translate financial workflows into intuitive UI/UX
• Optimize rendering performance and state management
• Contribute to component architecture and design systems

Backend Engineering

• Design and implement robust APIs and services
• Work with databases, data models, and integrations
• Handle performance optimization and scalability challenges
• Build systems that support real-time and data-heavy workflows

Technical Leadership (Lightweight)

• Guide decisions on architecture, design patterns, and best practices
• Lead by example through clean, maintainable code
• Participate in code reviews and mentor other engineers
• Help drive engineering quality without heavy people management

System Design & Architecture

• Contribute to scalable and modular system design
• Work on data flow, API contracts, and service boundaries
• Participate in POCs and technology evaluations
• Continuously improve system performance and reliability

Collaboration

• Work closely with Product and UX teams
• Participate in Agile ceremonies (standups, planning, retrospectives)
• Collaborate across teams to deliver high-quality features

Requirements

• 5+ years of software development experience
• Proven experience as a Fullstack Engineer

Frontend (Strong Requirement)

• Expertise in TypeScript, JavaScript (ES6+), HTML, CSS
• Strong experience with ReactJS
• Experience with state management (Redux, MobX, or similar)
• Ability to build scalable, maintainable frontend architecture
• Strong focus on performance and usability

Backend (Equally Important)

• Strong experience with backend development (Java/Spring Boot preferred, or Node.js/Python)
• Experience building scalable APIs and services
• Strong knowledge of SQL (PostgreSQL preferred)
• Experience with REST/GraphQL APIs and integrations

Core Engineering Skills

• Strong problem-solving and debugging abilities
• Solid understanding of system design and architecture
• Experience with Git and Agile/SCRUM workflows
• Ability to work across frontend, backend, and system layers
• Strong ownership mindset and attention to quality

Nice to Have

• Experience with data visualization (D3.js, ECharts, etc.)
• Familiarity with microservices or distributed systems
• Experience with cloud platforms (AWS preferred)
• Knowledge of caching, async processing, or event-driven systems
• Experience with DevOps, CI/CD, Docker
• Familiarity with design systems or component libraries
• Exposure to financial systems, analytics platforms, or real estate tech
• Experience with AI-assisted development tools (Copilot, Cursor, etc.)

Why Join Us

• Build in a massive ($17T) industry with real impact
• Work on complex, data-rich applications
• High ownership, minimal bureaucracy
• Collaborate with a strong, focused engineering team
• Flexible work environment
• Competitive compensation and benefits

About the role

We are looking for a full-stack developer to join a project — a modern platform for creators that combines content publishing, community building, and monetization in one ecosystem.
 

🔧 Tech stack

Backend:

• Node.js (Sails.js)
• REST API
• PostgreSQL

Frontend:

• Vue.js 2
• React.js (Draft.js)
• HTML + EJS (SSR)
• SCSS
   

🚀 Responsibilities

• Develop and maintain backend services and APIs
• Work with SSR (EJS templates)
• Build and improve frontend features (Vue.js / React)
• Integrate and optimize REST APIs
• Collaborate with product and design teams
   

✅ Requirements

• Strong experience with Node.js
• Experience with PostgreSQL
• Hands-on experience with Vue.js or React
• Understanding of SSR approaches
• Experience working with REST APIs
• Commercial fullstack development experience

➕ Nice to have

• Experience with Draft.js
• Experience with content or creator platforms
• Performance optimization experience
   

Interview Process:

1. Screening call (20-30 min)
2. Technical Interview (45-60 min)
3. Test task (small;)

4. Meeting the client

    

What we offer

• Competitive compensation depending on experience and skills
• A friendly team of like-minded people
• Opportunities for learning and development
• Compensation for sick leaves
• 21 working days paid vacation + all Poland national holidays
• Corporate events and activities
• Private medical care
• Office work or remote working (based on your location)

Our Tech Stack (Modern & Cutting-Edge)

Backend: KeystoneJS 6, Node.js, PostgreSQL 16, Redis, Prisma ORM

Frontend: Next.js 15, React 19, TypeScript, Tailwind CSS, Radix UI

Infrastructure: AWS ECS, Terraform, Docker, Application Load Balancer

Tooling: Yarn Workspaces, Jest, Playwright, Task Runner, Sentry

AI-Forward: We use AI extensively across development, automation (n8n), product management, and marketing

What You'll Do

Build from Scratch

• Architect and implement core ad-serving infrastructure
• Design high-performance APIs that handle real-time bidding
• Create sophisticated analytics systems for revenue tracking

Own Complex Systems

• Manage database migrations and performance optimization
• Implement third-party integrations with major partners
• Build developer tools and automation workflows

Data-Driven Development

• Create comprehensive analytics dashboards
• Optimize queries and caching strategies
• Implement A/B testing frameworksCross-Functional Impact
• Work directly with founders and product team
• Shape technical architecture and engineering culture

• Mentor junior developers and contractors

   

  Who We're Looking For

  Core Requirements

• 5+ years of full-stack development experience
• Expert-level TypeScript/JavaScript and modern frameworks
• Production experience with PostgreSQL, APIs, and cloud infrastructure

• Ownership mindset - you see problems and solve them without being asked

   

  Startup DNA

• Sense of urgency - you understand that speed and quality aren't mutually exclusive
• Adaptability - you thrive when priorities shift and requirements evolve
• AI enthusiast - you see AI-driven development as essential, not optional
• Disagree and commit - you voice opinions then align with team decisions

• Multitasker - you can context-switch between infrastructure, frontend, and business logic

   

  Technical Edge

• Bleeding-edge curious - you experiment with new technologies and share learnings
• Data-driven - you make decisions based on metrics, not assumptions

• Systems thinker - you understand how pieces fit together at scale

   

  Bonus Points

• Ad-tech experience - you understand RTB, DSPs, attribution, or affiliate marketing
• Data engineering - you've built ETL pipelines, analytics systems, or data warehouses
• Our exact stack - KeystoneJS, Next.js, PostgreSQL, AWS infrastructure

The family-style company is looking for a talented .NET Developer to join our team. If you are looking for an awesome team, send us your CV!

The Project

You will join a project for a large, well-known company in the insurance sector, working on a B2B corporate SaaS solution. The platform serves a wide user base and is deployed on Kubernetes in Azure.

Your primary focus will be on application development: building new features, improving existing functionality, and contributing to the evolution of a scalable product.

Tech Stack:

• Backend: C#, ASP.NET Core
• Frontend: Angular
• Database: PostgreSQL
• Infrastructure: Kubernetes, Microsoft Azure

• Other: REST APIs, SaaS architecture

   

Nice to have:

• Rust

• Experience with geospatial data and related libraries

   

What You'll Do

• Develop and maintain full-stack features using ASP.NET Core, Angular, and PostgreSQL
• Extend and improve the SaaS platform based on the product backlog
• Collaborate closely with the team and client in English
• Take ownership of tasks and contribute to technical decisions

• Share ideas and continuously improve both the product and development process

   

What We're Looking For

• Experience with (or strong willingness to learn) ASP.NET Core, Angular, C#, and PostgreSQL
• Understanding of modern web application development practices
• Proactive mindset - curiosity, ownership, and eagerness to learn
• Ability to work independently while being a strong team player
• Good communication skills in English (day-to-day project language)

What we offer

• Sane and polite, but effective management
• The best corporate culture (according to our teammates' opinions)
• Competitive salary and other stuff
• Remote work, full time

• Becoming not just another developer, but a part of UKAD with unique value and long-term relationships.

   

Some facts about UKAD to help you make a decision:

During 2022-2025, we only increased cooperation with our foreign partners

UKAD combines benefits of family-sized companies, like no bureaucracy, easy access to the executives, with sustainable growth and vast opportunities

Our company is strong enough to be not just a vendor but a tech partner. We can afford to choose customers that respect developers

UKAD is one of the leading employers in Kharkiv, according to DOU

We never hire people for projects, but to build the team, so if the project ends, you remain a part of UKAD.

Aren't we the company you're looking for?

We are looking for a strong Full-Stack .NET + React Engineer with knowledge in AI LLM integrations to help expand and improve an existing AI CFO product. The MVP is already built and in use. This role is focused on building new features, improving AI Agent performance, and developing new Agents.

You will work directly on an active product and help us:

• Design and implement new features on top of an existing system
• Build advanced file export and reporting functionality (PDF, Excel, structured reports)
• Improve accuracy, consistency, and performance of LLM outputs
• Maintain and optimize generating charts and graphs using LLMs
• Create evaluation pipelines to measure and optimize model performance
• Implement validation layers and deterministic post-processing

Core Requirements

Full-Stack Engineering

• React (or similar frontend framework) experience
• .NET Backend development experience
• Working with AWS (or similar cloud environments)
• Knowledge with relative and document databases 

AI / LLM Engineering

• Proven experience integrating LLMs into real applications
• Experience with MCP and understanding how it works
• Structured output generation (JSON, reports, analytics)
• Prompt engineering and workflow optimization
• Building evaluation frameworks and test suites for AI systems
• Experience with frontier LLM models
• Handling retries, validation, guardrails, and fallback logic
• Optimizing cost, latency, and accuracy trade-offs
• Use AI-assisted coding tools (Claude Code) to ship faster

Strong Plus

• Financial analytics or accounting-related software experience
• Familiarity with QuickBooks or similar financial systems

Engagement Model

• Part-time contract (~120 hours per month)
• Fully remote
• Flexible schedule
• Long-term collaboration (not a short gig)
• Complete freedom in choosing technologies and architectural solutions

This is perfect for an experienced engineer who prefers flexible contract work and enjoys building practical AI systems.

Shortlisted candidates will receive a test task. Detailed project information will be shared after signing an NDA.

Meet the YozmaTech

YozmaTech isn’t just another tech company – we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.
We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.
Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family – you’ll feel right at home with us.

Our client is a US-based startup building AI-powered tools for product and engineering teams, focused on autonomous “agentic AI” systems that turn product requirements into working features directly within real codebases. Their platform integrates with tools like Jira, Git, and design systems to generate production-ready code, reuse existing components, follow company standards, and automatically create pull requests.

The solution operates within real development environments and is designed to understand codebase structure, dependencies, and architecture, enabling it to act more like an experienced developer than a basic assistant.

Our client is looking for a Senior Full-Stack Engineer to join their team and help shape the future of autonomous AI agents for developers. In this role, you will work closely with AI engineers to build tools that enhance coding workflows, automate tasks, and boost productivity.

Why join this project?

• Be part of next-generation AI-powered development tools redefining software engineering
• Collaborate with top-tier engineers and AI specialists
• Solve complex challenges in a fast-paced, growing environment
• Enjoy a dynamic work culture with exciting growth opportunities
• Gain hands-on experience with cutting-edge technologies as the product evolves rapidly

Our tech stack:
React, TypeScript, Python, Postgres, Redis, AWS (leveraging its services extensively).

Key Requirements:
🔹 10+ years in full-stack engineering, with strong backend and frontend experience;
🔹 Startup experience is a must;
🔹 Backend: Strong experience with cloud architectures and AWS services;
🔹 Experience with Infrastructure as Code (IAC) tools such as Terraform or Pulumi;
🔹 Frontend: Deep expertise in React, TypeScript, and modern frontend architectures;
🔹 Experience working with CI/CD pipelines, automated testing, and modern development workflows;
🔹 Passion for developer tools and high-quality code;
🔹 Advantage: Use AI-powered dev tools in your day-to-day workflow;
🔹 Advantage: Experience with Python;
🔹 English – Upper-Intermediate or higher.

What you will do:
🔹 Design and develop scalable full-stack solutions, balancing backend and frontend;
🔹 Architect and optimize cloud-based systems using AWS;
🔹 Build and maintain high-performance backend services and APIs;
🔹 Develop modern, interactive UI components using React and TypeScript;
🔹 Work on developer-focused tools, including IDE plugins and workflow integrations;
🔹 Solve complex technical challenges (e.g. large codebase parsing, performance optimization, AI integrations);
🔹 Collaborate closely with AI engineers to integrate AI-driven features into the product;
🔹 Take ownership of key technical decisions and contribute to overall system architecture;

Interview stages:
🔹HR interview;
🔹Initial interview (30 min);
🔹Technical interviews;
🔹Interview with CTO (30 min);
🔹Interview with CEO (30 min);
🔹References;
🔹Offer.

Why Join Us?

At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products – and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.
From day one, you’ll get:
🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

We’ll keep it respectful, clear, and personal from start to offer.
You’ll always know what project you’re joining – and how you can grow with us.

Everyone’s welcome

Diversity makes us better. We create a space where you can thrive as you are.

Ready to build something meaningful?

Let’s talk. Your next big adventure might just start here.

Senior Full-Stack Engineer (AI Products)

26 Lines Of Code  is looking for a Senior Full-Stack Engineer who doesn’t just code, but leads projects and drives execution.

🔹 What You’ll Do

• Lead projects end-to-end (architecture → delivery).
• Design scalable, AI-powered solutions.
• Connect product vision with technical execution.
• Communicate trade-offs, timelines, and risks to clients.
• Mentor engineers and maintain high code quality.
• Work with microservices and REST APIs.
• Handle authentication (OAuth, SAML, SSO).

🔹 Requirements

• 5+ years of Full-Stack experience.
• Strong React.js, Node.js, JavaScript, TypeScript.
• SQL (MySQL/PostgreSQL) + Redis or other NoSQL.
• Cloud platforms (AWS / Azure / GCP).
• Solid knowledge of design patterns & best practices.
• Strong communication skills (English B2+).
• Availability for overlap with Eastern USA time zone.

🚫 Not a fit if you’re looking for a pure coding role without ownership.

• Full-time
• Remote
• B2B/ UKR FOP
• Long term project

It is a high-growth SaaS company selling IT Service Management, a space that is being propelled into high growth as businesses worldwide accelerate their digital transformation and start to adopt new workstyles for their employees.

We have over 4,000 customers in 140 countries. We are deployed in 42 different languages and used daily by over 100,000 system administrators. Our software impacts the daily working lives of over 9 million end users.

About the role:
We’re looking for an experienced Full-Stack Developer to join our mission. If you’re passionate about building impactful products, love working with cutting-edge AI technologies, and want to help push the boundaries of what’s possible.

What You’ll Do:

• Develop AI capabilities in the backend using Node.js, build and maintain robust API and connectivity infrastructure, while creating advanced React-based applications as part of global SaaS platforms.
• Take ownership of both backend and frontend features, with a strong emphasis on backend excellence
• Upgrade and enhance existing code, implementing the latest standards and technologies
• Work with TypeScript, and modern development tools (Webpack, Vite, Jest)
• Collaborate within an Agile team, contributing to technical decisions and shaping the user experience
• Ensure system performance, code quality, and ongoing maintenance
   

What We’re Looking For:

• 4 years of experience in web development, primarily backend, with full-stack capabilities
• Strong hands-on experience in Node.js
• Experience with React and frontend development
• Familiarity with CI/CD processes and DevOps tools, an advantage
• Creative thinker, problem solver, and a strong team player
• Team player with creative thinking and strong problem-solving skills
   

Bonus Point:

Experienced in designing and deploying vector databases for semantic search, as well as developing AI-driven applications leveraging RAG techniques.

What we offer:

• 20 working days’ vacation; 
• 10 paid sick leaves;
• public holidays;
• equipment;
• accountant helps with documents;
• many cool team activities.

PRAI builds Advanced PR AI Agents that automate operations, track global narratives, pitch 100K+ journalists, and decode media impact for organizations worldwide. We don't talk about AI transformation — we ship it. Our platform is live, our roadmap moves fast, and we're looking for A-players ready to build the infrastructure that powers next-generation AI Employees.

The Role

We need a Senior Full Stack Engineer who can take full ownership of product areas — from architecture to production — and use AI tooling daily to move faster than a traditional engineering team.

This is not a ticket-execution role. You'll work directly with founders and product leadership, influence technical decisions, and see your work running in production within weeks of joining.

The Team

You'll be working alongside people with backgrounds at:

• PwC
• McKinsey & Company
• EY
• SoftServe
• Apple
• Uber
• Baykar

We operate at startup pace — decisions get made fast, priorities shift when they need to, and everyone keeps up. Expect a mix of async work and live Zoom calls within the same day, screen sharing, real-time problem solving. We're transparent about using a time tracker — if you're confident in your output, it won't be an issue.

What You'll Do

• Build and ship AI-powered full-stack products from architecture to production — owning features end-to-end
• Integrate LLMs, AI agents, and automation systems using OpenAI, Anthropic, and custom prompt workflows
• Develop modern frontend interfaces in React and/or Angular, backed by scalable Python and Node.js services
• Design and maintain APIs, internal tooling, and data pipelines supporting real operational workflows
• Use AI-assisted development tools (Cursor, GPT workflows) daily to ship faster and at higher quality
• Identify engineering bottlenecks and fix them proactively — without being asked
• Collaborate directly with founders and product leadership to turn concepts into working systems
• Maintain high engineering standards in a fast-moving environment

What We're Looking For

Must-haves:

• 5+ years of full-stack engineering experience — shipped real products, not just contributed to them
• Strong command of Python and JavaScript/TypeScript across frontend and backend
• Hands-on experience with React and/or Angular in production
• Direct experience integrating LLMs or AI APIs (OpenAI, Anthropic, or equivalent)
• AWS or GCP at production scale — Docker, CI/CD, infrastructure ownership
• Fluent in Ukrainian or Russian — our core team communicates in these languages daily
• English C1 — clear communication with international stakeholders
• Operates without micromanagement — you drive your own execution

Strong advantage:

• Startup or scale-up background where you owned outcomes, not tasks
• SaaS or AI-native product experience end-to-end
• DevOps or infrastructure ownership beyond basic deployment
• Product intuition — you think about user impact, not just code
• Systems thinking — you design for scale from the start

Core Technologies

Frontend: React, Angular, Next.js, TypeScript, JavaScript, Tailwind CSS Backend: Python, Node.js, REST APIs, GraphQL AI / Automation: OpenAI API, Anthropic API, AI agents, prompt systems, Cursor, workflow automation Infrastructure: PostgreSQL, Redis, Docker, AWS / GCP, CI/CD pipelines

What We Offer

• Fully remote — work from anywhere
• Full-time, EST-aligned schedule (7:00 AM – 4:00 PM EST)
• Direct access to founders — short feedback loops, real influence
• High ownership and product impact from day one
• AI-first development environment — cutting-edge tooling daily
• Minimal bureaucracy — decisions happen fast
• Competitive compensation based on experience and capability

How We Work

EST hours — 7am to 4pm. Direct communication, no layers between you and decision-makers. We move fast, speak plainly, and value people who take full accountability for their output.

How to Apply

Send your CV and a short note on the most complex AI or full-stack product you've built — what it did, what you owned, what you'd do differently. No templates. No generic applications.

Our process: HR screen (15 min) → technical interview (1 hour) → hiring manager interview (up to 1 hour). We respond within 3–5 business days.

While other teams are still discussing AI transformation — we're building it.

Вимоги до володіння мовами

Англійська

C1 – Просунутий

Українська

Носій мови

Російська

B2 – Вище середнього

Про компанію PraiPRAI.co is a pioneering platform in the public relations (PR) industry, known for integrating artificial intelligence into its services. It offers an affordable PR software solution suitable for companies of various sizes. This innovative platform aims to democratize the PR industry by making writing and journalist resources, which were previously only available through professional PR specialists, accessible to a broader audience. This includes entrepreneurs, reporters, students, and skilled experts. It allows them to publicize their achievements without incurring the high costs usually associated with established agencies. For small or medium-sized businesses, this means they can avoid the expenses involved in extensive employee training or establishing an in-house PR team, enabling them to start their own PR activities quickly and efficiently.

PRAI.co's approach, described as an "agency-in-a-box," offers an easy-to-use interface covering all essential PR functions. This includes interview management, document writing, pitch targeting, and response processing. The platform employs big data technology to analyze information from various sources like documents, interviews, and websites, and uses AI to quickly create content in user-specified formats and styles. It also features a text editor for original copy proofing.

The platform's capabilities extend to targeted pitches using an extensive journalist database, enhancing engagement and increasing open rates. Unique and personally written pitches are certified by NFTs, ensuring their uniqueness to recipients. The AI monitors reply rates, analyzes responses in real-time, and adjusts campaigns accordingly. Additionally, PRAI.co provides a repository for clients' PR materials, including written text and audio interviews, and is designed for cross-platform compatibility, adaptable for both computers and smartphones.

PRAI.co's revolutionary platform is the result of four years of research and development by a team of AI researchers, designers, developers, content writers, marketing experts, and service support specialists. It represents a significant shift in the PR industry, leveraging AI to produce effective PR campaigns while conserving financial and human resources.