Dot net Core Developer

Final Job Description: Full Stack Developer (Node.js + Next.js + Firebase Firestore)

Position: Full Stack Developer

Experience: 5–7 years

Location: [Specify remote / hybrid / onsite]

Type: [Full-time / Contract]

About the Role

We are hiring an experienced Full Stack Developer with expertise in Node.js, Next.js, and Firebase Firestore. You must have personally built a complete CMS from scratch, covering backend architecture, frontend development, and cloud data management. This role demands deep understanding of clean code principles, advanced metaprogramming techniques, and strong hands-on experience with modern React tooling such as shadcn/ui, Tailwind CSS, and TanStack.

Key Responsibilities

• Architect, develop, and maintain scalable full-stack applications using Node.js and Next.js.
• 
  
• Design and manage cloud-based databases, especially using Firebase Firestore.
• 
  
• Build responsive, modern UIs with shadcn/ui, Tailwind CSS, and TanStack libraries.
• 
  
• Apply clean code principles (SOLID, DRY, KISS, YAGNI) to ensure maintainable, high-quality codebases.
• 
  
• Leverage metaprogramming (e.g., higher-order functions, decorators, dynamic modules) to create reusable, optimized systems.
• 
  
• Design and integrate APIs, both RESTful and GraphQL.
• 
  
• Handle authentication, authorization, and user management with best practices.
• 
  
• Lead or significantly contribute to CMS development projects.
• 
  
• Conduct code reviews, mentor peers, and promote engineering best practices.
• 
  

Required Skills

✅ 5–7 years professional experience in full stack development.

✅ Strong hands-on expertise in Node.js and Next.js.

✅ Proven experience building a complete CMS from scratch.

✅ Deep understanding and application of clean code principles.

✅ Practical experience with metaprogramming in JavaScript/TypeScript.

✅ Solid working knowledge of Firebase Firestore (queries, real-time updates, security rules, performance optimization).

✅ Proficiency with shadcn/ui, Tailwind CSS, TanStack (React Query, React Table).

✅ Strong experience designing and working with APIs.

✅ Understanding of cloud and serverless architectures (especially Firebase ecosystem).

✅ Familiarity with automated testing and CI/CD workflows.

✅ Excellent problem-solving, communication, and collaboration skills.

Nice to Have

• Experience integrating Firebase Authentication, Functions, or Storage.
• 
  
• Familiarity with cloud infrastructure (AWS, GCP, Azure).
• 
  
• Prior work in SaaS or multi-tenant platform design.
• 
  
• Contributions to open-source projects or technical blogs.
• 
  

Experience designing developer frameworks or libraries.

About HighLevel

HighLevel is a cloud-based, all-in-one white-label marketing and sales platform that empowers marketing agencies, entrepreneurs, and businesses to elevate their digital presence and drive growth. With a focus on streamlining marketing efforts and providing comprehensive solutions, HighLevel helps businesses of all sizes achieve their marketing goals. We currently have 1000+ employees across 15 countries, working remotely as well as in our headquarters, which is located in Dallas, Texas. Our goal as an employer is to maintain a strong company culture, foster creativity and collaboration, and encourage a healthy work-life balance for our employees wherever they call home.

Our Customers

HighLevel serves a diverse customer base, including over 60K agencies & entrepreneurs and 500K businesses globally. Our customers range from small and medium-sized businesses to enterprises, spanning various industries and sectors. Scale at HighLevel: We work at scale; our infrastructure handles around 3 Billion+ API hits & 2 Billion+ message events monthly and over 25M views of customer pages daily. We also handle over 80 Terabytes of data across 5 Databases. About the

Team

Currently we have millions of sales funnels, websites, attributions, forms and survey tools for lead generation. Our B2B customers use these tools to bring in the leads to the HighLevel CRM system. We are working to continuously improve the functionality of these tools to solve our customers’ business needs. In this role, you will be expected to be autonomous, guide other developers who might need technical help, collaborate with other technical teams, product, support and customer success

About the Role

● You will lead and mentor a team of engineers, fostering a culture of collaboration, innovation, and continuous improvement.

● You will architect, develop, and optimize scalable solutions using Google Cloud Platform services (or equivalent platforms like AWS), including Pub/Sub, Cloud Tasks, GKE (Kubernetes), and autoscaling mechanisms.

● You will also drive frontend development initiatives using Vue or React, focusing on performance optimization and, if applicable, module federation.

● You will design and optimize database structures and queries, focusing on MongoDB and Firestore, to ensure high performance and scalability.

● You will build and scale platform infrastructure in dynamic, fast-paced environments, ensuring reliability, security, and cost-effectiveness.

● You will collaborate with cross-functional teams to define technical requirements and deliver impactful solutions.

● You will solve complex technical problems, especially under pressure, with a methodical and analytical approach.

● You will stay updated on industry trends and best practices, integrating them into the team's workflows and architectures. Required

Qualifications

● 5+ years of experience in software engineering, with at least 1 year in a leadership role.

● Expertise in Google Cloud Platform services (or equivalent), including hands-on experience with Pub/Sub, Cloud Tasks, Kubernetes (GKE), and autoscaling strategies.

● Strong proficiency in modern frontend frameworks like Vue or React, with a deep understanding of frontend optimization techniques; knowledge of module federation is a plus.

● Advanced knowledge of databases, particularly MongoDB and Firestore, with proven experience in performance optimization.

● Demonstrated success in building and scaling platform infrastructure in high-growth or fast-paced environments.

● Strong analytical and problem-solving skills, with the ability to perform effectively under pressure.

● Comprehensive understanding of system architecture and cloud practices.

● Excellent communication and leadership skills, with a track record of mentoring and developing engineering teams.

We are looking for an experienced full-stack engineer (with a path to becoming CTO) to join our founding team! We're a B2B SaaS startup with a young vibrant culture taking this idea from inception to impact.

About the job

We want to talk to you if:

• You've built multiple, kick-ass Chrome extensions
• You've built commercial apps using chat frameworks (e.g. Chat 21/Getstream.io etc.)
• You are a React.JS, Node.JS, Javascript, & Postgres wiz
• You have experience building multi-platform apps (Web + mobile web)
• Have built or implemented integration frameworks at scale (or experience with iPaaS frameworks)
• You are obsessive about clean, optimized & scalable code with copious documentation
• You are excited about building out a team and have aspirations to become a CTO

Having B2B SaaS Startup experience is preferred and a big plus

About Us

SmartCue wants to make product demos more effective and as a result help sales teams optimize their sales cycles. Our fundamental belief is that everything we build must eliminate or reduce friction for a salesperson.

Fast Track Your Application

• Think about the Ideal Customer for SmartCue
• Download the trial for SmartCue, sign up, download, experience the product, and provide feedback on how to overhaul the current experience of the product to add immediate value to the customer

• We don't need you to fully code any feature in its entirety and are not looking for free work.

The idea is to identify folks who get what we are trying to do with SmartCue and find faster alignment with the right candidate.

Here is a video walkthrough for additional context - https://www.loom.com/share/9609cf1855e64926b71a1ff840bd7347" target="_blank">https://www.loom.com/share/9609cf1855e64926b71a1ff840bd7347

The Opportunity

• In this position, you must be ready for a fast-paced startup environment.
• Our ideal candidate is willing to be flexible and able to wear many hats.
• Must have experience engineering and scaling technologies & teams with a proven track record of success.
• Our perfect candidate is well-versed in Chrome Extensions, creating delightful front-end experiences for users, enjoys building and scaling the backend infrastructure, and has an itch to adopt the newest technologies.
• Remote forever, if you like!

Duties Include

• Develop + understand the technological roadmap
• Develop feature rollout systems and processes
• Develop strategies and solutions from customer discovery sessions
• Hire + manage outside/contracted engineering talent
• Scale while staying lean through the early stages up to fundraising
• Oversee ClickUp for project and product management, roadmap, bugs, and backlog grooming
• Collaborate with marketing to optimize user experience, onboarding and reduce churn
• Oversee security + compliance strategies
• Help field support desk inquiries
• And more...

We are an equal opportunity employer and proud to be committed to diversity and inclusiveness. We consider all qualified applicants without regard to race, nationality, gender, gender identity or expression, sexual orientation, religion, disability, or age.

Varivas is a community that allows users to create, support, and recommend content. The mission of Varivas is to give the community freedom, ease, and complete control of their content.

Varivas is an early-stage startup looking for its first few members. 

https://www.varivas.community/

Become part of a core team of an upcoming startup building an exciting product from scratch.

• Progressive Web App (PWA)
• JavaScript, Typescript
• MEAN stack https://angel.co/recruit/jobs/1383984">Angular, Node JS, Express, MongoDB
• Azure for hosting and data storage etc.
• Any previous experience in building a social network, payment system or content hosting is a big plus. (Please mention this in your application)

• Payment for work done (of course 🙂)
• Remote work from anywhere
• Complete flexibility of working hours
• Complete freedom and ownership of your work
• No meetings, standups, or daily status group calls. (We prefer asynchronous communication like slack)
• High equity (1-2.5%) if you are interested

• Should be able to work independently without any hand-holding.
• Problem solver who takes complete ownership of given work.
• Smart developer who delivers on results. (You will be assessed based on what you deliver, not by how hard or how long you work)
• Self-motivated candidates who do the work because they like it and are good at it.
• Self-managed individuals. You will not be managed by anyone on day to day basis. (There are no managers in the company)

• You will be part of a collaborative project team
• Will leverage several proprietary and standard tools to implement technical solutions.
• Responsible for understanding business requirements, providing estimation, developing solution, writing unit test scenarios and fixing defects for assigned applications.