Senior Backend Developer (AWS)

Appliscale sp. z o.o; Kraków; On-site; PLN 180,000 - 240,000; Full time

Job summary

Appliscale sp. z o.o is seeking an experienced backend engineer to develop and maintain scalable services using TypeScript and Node.js. You will deploy microservices on AWS with Terraform and influence architectural decisions across backend, frontend and mobile teams.

The role requires 5+ years in backend development, strong REST API design, and solid cloud/CI/CD experience. You will work in a collaborative, agile environment delivering production systems used by European customers.

Qualifications

• 5+ years of production software development experience in backend.
• Strong understanding of software engineering principles, testing, data structures and algorithms.
• Expert hands-on experience in technologies such as Typescript /Node.js.
• Experience in developing Cloud and Infrastructure solutions with AWS and CI/CD processes supported by tools like Terraform, CircleCI, Docker, Datadog, etc.
• Strong knowledge of DBMS like PostgreSQL, DynamoDB.
• Expertise in REST APIs.
• Experience in event driven architecture.
• Proficiency in OO design patterns, SOLID principles, Clean Code and solving architectural problems.
• Computer Science degree.
• Experience working with Agile methodologies such as SCRUM and/or Kanban.
• Good communication and collaboration skills.
• Self-motivation, proactive attitude.
• Proficiency in English.

Responsibilities

• Designing, writing, testing functionalities for a backend system written in TypeScript, Node.js
• Deploying and maintaining microservices in AWS using Terraform
• Design software architecture between backend, frontend and mobile apps
• Maintaining system on production used by consumers from several European countries
• Debugging issues
• Scoping and assessing the complexity of features
• Participating in sprint planning, daily sprints and meetings with product owners for grooming new features
• Recruiting and mentoring team members
• Collaborating with other team members and teams that depend on the functionalities that you develop

Skills

Typescript / Node.js

REST APIs

AWS

Terraform

CI/CD

PostgreSQL

DynamoDB

OO design patterns

SOLID principles

Clean Code

English

Agile methodologies

Education

Computer Science degree

Tools

Docker

Datadog

CircleCI

Terraform

Job description

You will need to be an expert in backend development with a thorough understanding of the technologies involved. Strong backend skills where you can demonstrate your ability to apply these technologies, as well as deploy and maintain them will be crucial to success. Technologies we work with: Typescript, JavaScript, Node.js, REST APIs, AWS, Terraform.

Responsibilities

• Designing, writing, testing functionalities for a backend system written in TypeScript, Node.js
• Deploying and maintaining microservices in AWS using Terraform
• Design software architecture between backend, frontend and mobile apps
• Maintaining system on production used by consumers from several European countries
• Debugging issues
• Scoping and assessing the complexity of features
• Participating in sprint planning, daily sprints and meetings with product owners for grooming new features
• Recruiting and mentoring team members
• Collaborating with other team members and teams that depend on the functionalities that you develop

Required Qualifications

• 5+ years of production software development experience in backend
• Strong understanding of software engineering principles, testing, data structures and algorithms
• Expert hands-on experience in technologies such as Typescript /Node.js
• Experience in developing Cloud and Infrastructure solutions with AWS and CI/CD processes supported by tools like Terraform, CircleCI, Docker, Datadog, etc.
• Strong knowledge of DBMS like PostgreSQL, DynamoDB
• Expertise in REST APIs
• Experience in event driven architecture
• Proficiency in OO design patterns, SOLID principles, Clean Code and solving architectural problems
• Computer Science degree
• Experience working with Agile methodologies such as SCRUM and/or Kanban
• Good communication and collaboration skills
• Self-motivation, proactive attitude
• Proficiency in English

Nice to Have

• Exposure to frontend development in React
• Working experience with one of the object-oriented and/or functional languages such as C#, Python Java, Golang, Kotlin