Lead Fullstack Engineer (React, Node.js)

Macedonia / Poland / Symphony Anywhere / Turkey / Ukraine

What is the project, and why should you care?

At Symphony Solutions, you will work closely with a portfolio of Symphony Solutions Centers of Excellence in Airlines and Aviation, as well as other domains, collaborating with and receiving support from various teams across the organization, including the Tech Office, Software Engineering, DevOps and Cloud Engineering, Business Analysis, Tech Leads, and Solutions Architecture teams. 

As a Technical Lead, you will take ownership of the technical development practices across the product team(s). You will manage the technical backlog and act as the key interface between Product Owner(s), Architecture, and Engineering teams. 

The project is a cloud-native aviation analytics and automation platform that ingests flight and invoice data, calculates true air traffic control and airport charges using advanced algorithms, and provides airlines with automated validation, discrepancy detection, and financial optimization tools.

You will be an excellent fit for this position if you have:

Cloud & Platform Engineering (GCP Focus) 

– Hands-on experience with: 

  • Cloud Run, Cloud Functions, GKE (Kubernetes) 
  • BigQuery, Cloud SQL, Firestore, Postgres 
  • Pub/Sub, VPC, IAM, Cloud Storage 

– Comfortable with both serverless and containerized solution architectures.

– Understanding of IAM, RBAC, encryption, and general cloud security practices. 

Full-Stack Engineering (React + Node.js) 

  • Strong Node.js backend development. 
  • Solid React experience (hooks, modern state management). 
  • Strong TypeScript proficiency across the stack. 
  • Ability to design modular, clean, and scalable full-stack solutions. 

Data & Analytics 

  • Proficiency in SQL; strong hands-on experience with BigQuery. 
  • Experience with data ingestion, processing, and transformation for large datasets. 
  • Experience using Python for data-related tasks, automation, or integration workflows. 
  • Familiarity with Jupyter Notebook for exploratory analysis, prototyping, or validation work. 

Kubernetes & DevOps Engineering 

  • Practical experience with Kubernetes (preferably GKE). 
  • CI/CD: GitHub Actions, GitLab CI, Cloud Build. 
  • Terraform for IaC. 
  • Familiarity with Helm charts and understanding of Kubernetes operators. 
  • Awareness of secure container, deployment, and DevOps practices. 

Architecture, Testing & Code Quality 

  • Strong background in TDD and automated testing. 
  • Good understanding of DDD and scalable architectures. 
  • Familiarity with REST API design principles. 

Preferred / Highly Valuable Experience 

Geospatial / GIS 

  • Experience working with geospatial data. 
  • Familiarity with PostGIS and spatial queries. 
  • Aviation datasets or standards are a plus. 

GenAI, OCR & Private LLM Workloads 

  • Experience with OCR tools (Document AI, Tesseract, ABBYY, etc.). 
  • Experience integrating OCR pipelines with GenAI models. 
  • Experience running private LLMs (self-hosted or controlled environments) for: 
  • Text extraction 
  • Summarization 
  • Intelligent automation 
  • Human-in-the-loop quality workflows 
  • Familiarity with vector databases and RAG pipelines. 

Experimental AI Approaches (Nice to Have) 

  • Interest or experience in Spec-Driven AI Development (e.g., generating components/code/tests/specs from formally defined requirements, beyond simple code generation). 
  • Openness to adopt, evaluate, and promote AI-assisted development and QA tools within the team. 

Big Data / High-Throughput Systems 

  • Exposure to high-load or large-scale distributed systems. 
  • Useful: Kafka, Apache AirFlow, Dataflow, Flink. 

Hybrid and Multi-Cloud Knowledge 

  • Experience building hybrid cloud solutions where sensitive data stays on premises. 
  • Awareness and experience with AWS and/or Azure services is a very strong advantage. 
  • Ability to recognize common multi-cloud patterns and build advanced DRP solutions. 

Security & Compliance 

  • Experience in working in Secure SDLC, dependency monitoring. 
  • Experience in regulated industries is beneficial. 

Here are some of the things you’ll be working on:

Maintainability 

  • Guide teams on design patterns and engineering best practices. 
  • Ensure code quality and maintainable implementation standards. 
  • Manage library/dependency lifecycle. 
  • Oversee code quality tools (SonarQube, linters). 
  • Promote the adoption of AI tools for software development and QA. 

Testing 

  • Ensure alignment with QA strategies and testing standards. 
  • Review testing coverage and quality thresholds. 
  • Collaborate with QA, BA, and Product Owners on epic-level functionality. 
  • Mentor developers and assist in structuring technical tasks. 

Deployment 

  • Define and improve CI/CD pipelines with the help of DevOps. 
  • Establish branching and deployment strategies. 

Security 

  • Identify vulnerabilities and drive remediation. 
  • Manage technical debt related to security. 

Observability 

  • Collaborate on monitoring/alerting setups (e.g., Dynatrace). 
  • Review logs, telemetry, and operational signals. 

Performance & Scalability 

  • Support performance and load testing. 
  • Identify bottlenecks and provide optimization guidance 

The perks of being a Symphonian

Workation
Laptop as a gift
Symphony Academy
Medical insurance
NEO Program
Loyalty Program
Team Buildings
30 days of vacation
Check all benefits ➔

What is Symphony Solutions?

Symphony Solutions is a Cloud and AI-driven IT company headquartered in the Netherlands. With a remote-first mindset, we have established a global presence spanning over 20 countries. We are a premier software provider of custom iGaming, Healthcare, and Airline solutions. We are devoted to delivering the highest quality of service and offer our expertise in full-cycle software development, cloud engineering, data and analytics, AI services, digital marketing orchestration, and more. 

15 years

on the market

7 offices

in 6 locations

Virtual office

Symphony Anywhere

Why Symphony Solutions could be
a good choice for you:

We are Anywhere. Symphony Anywhere virtual office discovers talent worldwide! With a hybrid model of work and Workation, choose when and where to work, while we provide the tools.

We are experts. Meet and work with top industry leaders in iGaming, Cloud, Agile, and more. We focus on building rapport, bringing forth our expertise, and delivering value to clients.

We disrupt. We embrace the future and contribute to it. In our diverse pool of projects, we work with visionaries that strive to disrupt the market and create solutions with impact.

We are a community. Symphonians build up the foundation for our core beliefs and values, committed and dedicated to the cause, they have passion and drive that embraces and lifts you up.

We learn. Symphony Solutions creates an environment for you to thrive and grow as an expert. We provide opportunities for your professional growth with Symphony Academy and more.

We are Agile! Symphony Solutions is all about Agile, and we mean it! We bring the Agile philosophy to every aspect of our work and set our clients on their Agile transformation journey.

So, you have applied. What’s next?

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