Lead Fullstack Developer (Part-Time, Serverless/AWS) B2B: 160 - 200 PLN/h 100% remote from Poland

Blazity; August (CA); Remote; USD 100,000 - 160,000; Part time

Job summary

Blazity is seeking a Lead Fullstack Developer to shape a modern web platform using serverless architecture on AWS. The role involves collaborating with clients, leading technical discussions, and optimizing both the frontend and backend systems, while offering flexible work conditions and team collaboration.

Benefits

Flexible working hours

Remote work

Fun social events

Open, supportive environment

Qualifications

• 5+ years of experience in fullstack development.
• Proven ability to architect backend systems.
• Strong knowledge of backend architecture, ideally serverless (AWS Lambda).

Responsibilities

• Design, develop, and maintain core features of a gambling and betting platform.
• Lead backend architecture decisions with a focus on serverless technologies.
• Ensure scalability, security, and performance of the platform.

Skills

Fullstack Development

React.js

Next.js

Serverless Architecture

AWS Lambda

RESTful APIs

MySQL

Leadership

Job description

We’re Blazity - a team of React.js and Next.js experts creating powerful web experiences. We have years-long relationships with many of our clients. As trusted development partners, we take full ownership of the projects and continuously optimize apps, stores, websites, and implement new features, or automate workflows.

Looking for your next adventure? As it is said, you mustgather your party before venturing forth - so why not join us?

Fueling Innovation, igniting Careers - join us Now!

Join our team as a Lead Fullstack Developer and take a key role in building a modern web platform using serverless architecture on AWS. We’re looking for an experienced engineer who can not only write high-quality code, but also lead technical discussions, make architectural decisions, and collaborate directly with the client. You’ll have real impact on the product, work with a capable and friendly team, and enjoy a flexible, long-term engagement.

Our requirements

Technical Requirements

• 5+ years of experience in fullstack development
• Proven ability to architect backend systems from the ground up
• Frontend: Experience with React.js and Next.js
• Backend: Strong knowledge of modern backend architecture, ideally serverless (AWS Lambda)
• Database experience, especially with MySQL
• Familiarity with Serverless Framework (nice to have)
• Experience building and consuming RESTful APIs (GraphQL is a plus)
• Strong technical leadership mindset — comfortable leading discussions, making architecture decisions, and guiding other devs
• Ability to present ideas to the client and take initiative on improvements
• High level of ownership — we need someone who thinks ahead, not just executes tickets

Availability & Workflow

• ~80 hours per month (part-time, long-term)
• Able to participate in daily standups, sprint planning, and regular client meetings
• Will work closely with PM (Sabina) and frontend/backend devs
• Must be comfortable working in a fast-paced, business-critical phase (peak user activity July–August)

Scope of responsibilities

• Design, develop, and maintain core features of a peer-to-peer gambling and betting platform
• Lead backend architecture decisions, with a focus on serverless technologies
• Implement and optimize frontend components using React.js and Next.js
• Collaborate closely with other developers, the PM, and the client to shape technical direction
• Ensure scalability, security, and performance of the platform — especially during high-traffic periods
• Translate product requirements into clean, efficient, and testable code
• Conduct code reviews and mentor other developers as needed
• Take initiative in identifying areas for improvement and proactively suggesting solutions
• Participate in daily standups, sprint planning, and regular client meetings

What we offer

What Makes Us Special?

Our team has a genuine impact on the company’s decisions and direction.

No bureaucracy – we keep things simple and efficient.

️ Remote work from Poland

Flexible working hours – fit your schedule to your life.

Fun social events to connect with your teammates.

We value feedback and foster an open, supportive environment.