Jobs Lviv, Fullstack

About the project
We are building a comprehensive client contact data discovery and management platform that automates the entire workflow of finding, collecting, and working with client information. The application combines powerful data collection capabilities with advanced automation features to streamline client relationship management processes.
 

Responsibilities:

— Develop and maintain backend microservices using NestJS;
— Build and enhance frontend features using Angular + TypeScript;
— Design and implement REST APIs for client data collection and automation;
— Work with data processing pipelines, business logic, and system integrations;
— Implement messaging and caching solutions using RabbitMQ/Redis;
— Participate in architecture discussions and feature development;
— Write and maintain tests (unit and e2e);
— Optimize database queries and ensure data integrity in PostgreSQL.
 

Required skills:

— 2+ years of commercial experience as a Full-stack or Software Developer;
— Strong experience with Node.js and NestJS framework;
— Proficiency in Angular and TypeScript;
— Understanding of REST API design and integration;
— Experience with relational databases (PostgreSQL) and ORM (TypeORM or similar);
— Knowledge of messaging systems (RabbitMQ) or caching (Redis);
— Experience with Docker and Git;
— Understanding of testing approaches (unit/integration/e2e);
— Experience with AI integrations (Claude, Gemini, or similar);
— English level: Upper-intermediate or higher.
 

Will be a plus:

— Experience with Nx monorepo tooling;
— Hands-on experience with Elasticsearch for search functionality;
— Familiarity with microservices architecture and design patterns.
 

We offer:

— Opportunities for career growth and personal development, to help you improve your skills and achieve your goals;
— No micromanagement - your ideas and initiatives are always encouraged;
— Educational programs that are covered by the company at 30% of the expense;
— Paid vacation leave and public holidays (21 vacation days annually);
— Competitive financial compensation with regular performance reviews;
— Outdoor team activities are paid for by the company;
— English language improvement through extensive communication;
— The chance to work alongside highly experienced and enthusiastic IT professionals who are ready to share their knowledge and help you gain invaluable experience in a live IT environment.

About the project:

Our customer  is a full quote-to-cash ERP/PSA used by field service companies (system integrators) that install and maintain physical equipment - AV systems, security cameras, fire alarms, HVAC. The platform covers:

• Sales: opportunities, quoting, ordering
• Projects: project management, resource scheduling
• Service: dispatch, ticketing, field technician management
• Finance: accounting, GL, invoicing, purchasing (the financial core is central to everything)
• Reporting: data sources, dashboards, report builder

All modules feed into a single financial core. The platform is sold as an all-or-nothing product today - no modular subscriptions.

You will work closely with stakeholders to analyze the current solution, identify technical risks, document findings, and provide recommendations that will shape future development. This is an excellent opportunity for an experienced engineer who enjoys solving complex technical challenges, investigating legacy systems, and making architectural decisions.

Requirements

• 7+ years of commercial software engineering, with Backend and Frontend development using TypeScript
• Hands-on experience with NestJS (or similar JS frameworks for backend development) and React
• Hands-on experience with REST API and GraphQL protocols
• Proven track record leading engineering teams - technical mentorship, code reviews, architectural decisions.
• Strong experience working with complex backend systems (beyond CMS platforms or simple websites). Experience with ERP systems is a significant advantage.
• Solid understanding of distributed and microservices-based architectures.
• Strong expertise with relational databases (MySQL, PostgreSQL, or similar), including schema design, query optimization, and performance analysis.
• Experience working with stored procedures, database functions, and complex SQL is highly desirable.
• Experience with Apache Kafka
• Experience analyzing large legacy codebases and understanding complex business logic.
• Hands-on experience with reverse engineering existing systems is a strong plus.
• Experience participating in system design, architecture discussions, and technical decision-making.
• Strong analytical mindset and excellent problem-solving skills.
• Ability to work independently with limited project documentation.
• Hands-on experience with Azure Cloud
• Upper-Intermediate or higher English level.
• Experience working in Agile / Scrum / Kanban
• PHP and MSSQL stored procedures experience is a significant advantage.

Nice to Have

• Experience with AI-assisted development tools (Copilot, Claude, Cursor)
• Background in SaaS, multi-tenant platforms, or large-scale B2B portals

Responsibilities

• Lead technical delivery, owning architecture and code quality
• Design, develop, and review TypeScript code for backend and frontend systems
• Align with Client engineering leadership on technical direction and delivery
• Break down epics into technical tasks, drive estimation and sprint planning
• Mentor engineers through pair programming, code reviews, and technical guidance
• Drive AI adoption by onboarding teammates to AI tools and practices
• Identify and unblock technical risks early; escalate delivery concerns proactively
• Participate in Agile ceremonies and Client governance cadence
• Contribute to Roadmap planning, risk identification, and dependency management

We offer*:

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

*not applicable for freelancers

Deviark is an international software development company specializing in IT consulting, project management, and software development.
 
The main areas of expertise are native Android/iOS apps and web solutions. We also cover the full software development lifecycle, mobile app development, UI/UX design, business analysis, embedded systems, and more.
 
Our mission is to provide our clients with solutions that help them succeed. We work at the highest level of quality and productivity.

Our team is expanding, and we are looking for new talent. This time we are actively looking for a FullStack Engineer.

You are our ideal candidate if:
- You have at least 4-5 years of commercial experience
- Experienced in Node.js (NestJS), React (Next.js), TypeScript
- Experienced in AI integration (MCP would be a huge plus)
- Understand the entire web development process (design, development, and deployment)
- Have an Intermediate+ English level
- Collaborative approach to teamwork and the ability to clearly communicate and justify decisions to clients
 

What we can offer:
💰 Competitive compensation
📈 Regular salary and performance reviews
🇬🇧 Free English language courses
🌱 Professional development and career growth
🎓 Company-funded conferences, certifications, and seminars
 

If you recognize yourself in the description, send your resume as soon as possible. If your experience is relevant to the position, our recruiter will contact you within 5 working days.
 

Join us and become a part of our Deviark Team of Professionals!

Deviark is an international software development company specializing in IT consulting, project management, and software development.
 
The main areas of expertise are native Android/iOS apps and web solutions. We also cover the full software development lifecycle, mobile app development, UI/UX design, business analysis, embedded systems, and more.
 
Our mission is to provide our clients with solutions that help them succeed. We work at the highest level of quality and productivity.

Our team is expanding, and we are looking for new talent. This time we are actively looking for a FullStack Engineer (TypeScript/.NET).
 
 You are our ideal candidate if:
 - You have at least 4-5 years of commercial experience;
 - Experienced in ASP.NET, React (NextJS), TypeScript;
 - Experienced with Azure, IoT/IoT Hub (would be a huge plus);
 - Understand the entire web development process (design, development, and deployment);
 - Have an Intermediate+ English level.
- Collaborative approach to teamwork and the ability to clearly communicate and justify decisions to clients.
 
What we can offer:
💰 Competitive compensation
📈 Regular salary and performance reviews
🇬🇧 Free English language courses
🌱 Professional development and career growth
🎓 Company-funded conferences, certifications, and seminars
 
If you recognize yourself in the description, send your resume as soon as possible. If your experience is relevant to the position, our recruiter will contact you within 5 working days.
 
Join us and become a part of our Deviark Team of Professionals!
 

About the project
A service-oriented EnergyTech platform for electricity trading, consumption-data aggregation, and market hedging across energy markets. Built on multiple Django/DRF backends with React SPAs on top, plus AI/LLM-assisted analytics and a customer portal with enterprise SSO. The product is live and revenue-generating - we’re building out new services and setting modern development standards.

Responsibilities:
— Develop backend services with Python, Django + DRF;
— Build React SPAs (Vite, MUI, Recharts);
— Work with business logic and cross-service integrations;
— Implement AI/LLM features using LangChain + OpenAI;
— Write and maintain tests.

Required skills:
— 1+ years of commercial experience as a Full-stack/Software Developer;
— Strong Python, Django and DRF;
— React and JavaScript/TypeScript;
— PostgreSQL, Redis, Celery;
— Third-party API integration;
— Git and testing;
— Experience with AI coding tools (Claude Code, Cursor or similar);
— English: Upper-intermediate or higher.

Will be a plus:
— LangChain / OpenAI or other LLM integration;
— Vite, MUI, Recharts;
— Azure, Docker, CI/CD.

We offer:
— Opportunities for career growth and personal development, to help you improve your skills and achieve your goals;
— No micromanagement - your ideas and initiatives are always encouraged;
— Educational programs that are covered by the company at 30% of the expense;
— Paid vacation leave and public holidays (21 vacation days annually);
— Competitive financial compensation with regular performance reviews;
— Outdoor team activities are paid for by the company;
— English language improvement through extensive communication;
— The chance to work alongside highly experienced and enthusiastic IT professionals who are ready to share their knowledge and help you gain invaluable experience in a live IT environment.