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Lead Full-Stack Engineer (NestJS and React)

Posted pay

Pay not posted

Location: Ukraine
Work type: Not given
Level: Senior
Experience: 7+ years
Skills in the job text: SQL
TypeScript
Azure
React
PostgreSQL
GraphQL
Kafka
MySQL
PHP
Posted: 22 days ago
Last check: 4 min ago
Job type: Software engineering

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What you will do

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

What you need

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

Pay and benefits

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

About N-iX

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.

Read the job posting on the N-iX site

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Source: the N-iX Greenhouse job board. We last checked this job 4 min ago. We first saw it 4 days ago. A job on a job board does not always mean that the team interviews people now. We found this job board in a public list. We did not yet compare it with the careers page of the company.

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