Lead Backend Engineer (Golang/Node JS / AWS) with German

Spyrosoft Ltd; Polska; Hybrid; USD 90,000 - 120,000; Full time

Job summary

Spyro Soft in the Town of Poland, New York, seeks a skilled backend developer with extensive experience in Node.js and Golang. You will work on a digital twin platform aimed at supporting the energy transition, focusing on scalable microservices and API development.

Your role includes collaborating on architecture decisions and enhancing system performance. Ideal candidates should have strong problem-solving abilities and a proactive attitude, along with fluency in both English and German.

Qualifications

• 5+ years of experience in backend development, ideally within microservices architecture.
• Strong expertise in Node.js and Golang.
• Solid knowledge of Docker and Kubernetes.
• Hands-on experience with AWS services and infrastructure.

Responsibilities

• Design, develop, and maintain scalable microservices using Node.js, Golang, and Python.
• Build and optimize PostgreSQL data models and queries.
• Develop and maintain APIs using gRPC and REST.
• Containerize applications with Docker and manage deployments on Kubernetes.
• Collaborate with frontend and backend teams.

Skills

Node.js

Golang

PostgreSQL

Docker

Kubernetes

AWS

gRPC

REST APIs

RabbitMQ

Python

Job description

Tech stack:

• Node.js (primary backend technology)

• Golang (microservices, gRPC-based services)

• Python (ETL-related components)

• PostgreSQL

• Redis (Key-Value stores)

• gRPC & REST APIs

• Docker & Kubernetes

• AWS (cloud infrastructure)

• RabbitMQ / AWS SQS (event-driven architecture)

• NestJS

• Angular / Svelte (collaboration exposure)

Requirements:

• 5+ years of experience in backend development, ideally within microservices architecture

• Strong expertise in Node.js and Golang

• Experience with PostgreSQL and database design for scalable, high-performance systems

• Solid knowledge of Docker and Kubernetes

• Hands-on experience with AWS services and infrastructure

• Experience with gRPC and REST API design

• Familiarity with event-driven architectures (RabbitMQ, AWS SQS)

• Understanding of distributed systems and scalability principles

• Ability to work independently and take ownership of complex tasks

• Strong problem-solving mindset and proactive attitude

• Very good command of English and German (both written and spoken)

Nice to have:

• Experience with Python (especially in ETL processes)

• Familiarity with NestJS framework

• Exposure to Angular or Svelte frontend technologies

• Knowledge of the energy or electric energy industry domain

• Experience working within highly agile environments

• Experienced in using AI tools in day-to-day workflow

Project description:

You will join the development of an advanced digital twin platform for the energy transition, designed to unify energy and climate-related data into a single, comprehensive solution.

The platform supports stakeholders involved in energy transformation by providing data-driven insights and decision-making tools. It addresses key challenges such as CO2 balancing, renewable energy expansion, power grid planning, and municipal heating strategies.

Built on a modular and scalable architecture, the solution enables complex analytics and supports real-time insights in a rapidly evolving energy sector.

Main responsibilities:

• Design, develop, and maintain scalable microservices using Node.js, Golang, and Python

• Build and optimize PostgreSQL data models and queries

• Develop and maintain APIs using gRPC and REST

• Containerize applications with Docker and manage deployments on Kubernetes (AWS)

• Contribute to architecture decisions for distributed systems

• Ensure system scalability, performance, and reliability

• Collaborate with frontend (Angular) and backend (NestJS) teams

• Work independently from concept to production delivery

• Participate in agile ceremonies, code reviews, and continuous improvement initiatives