leadtower.io

Location: Remote

Type: Full-time

Company: LeadTower.io

About Us:

LeadTower.io is an ambitious SaaS startup helping businesses automate LinkedIn outreach and sales. We are scaling fast and looking for a proactive QA Engineer who feels comfortable working both manually and writing automated test cases in JavaScript.

This is a key role for us — we want someone who can own the testing process end-to-end: from manual functional testing to building and maintaining automated tests for our backend and frontend systems.

Responsibilities:

• Manual testing of web application (functional, UI/UX, exploratory, regression)

• Writing and maintaining test cases and test documentation

• Preparing and executing test plans

• Writing automated tests using JavaScript (preferred frameworks — Playwright / Cypress / Jest / or similar)

• API testing (Postman / automated tests)

• Creating automation test suites for smoke / regression testing

• Reporting bugs and tracking them through the lifecycle

• Collaboration with developers, product managers, and the whole team

• Actively participating in improving QA processes

Requirements:

• 2+ years of commercial experience in QA (manual + automation combined)

• Experience in web application testing

• Experience with JavaScript-based automation tools (Playwright / Cypress / Jest / or similar)

• API testing experience (manual and automated)

• Strong understanding of testing processes and SDLC

• Experience with bug tracking tools (Jira, Trello, or similar)

• Good analytical and problem-solving skills

• Basic knowledge of Git

• Intermediate+ English (written and spoken)

Nice to Have:

• Experience with backend/API automation tests

• Experience with CI/CD test pipelines

• Experience in startup environment or small product teams

• Understanding of microservices architecture

• Experience with Docker

What We Offer:

• Working on a growing SaaS product with real users

• Full remote & flexible working hours

• The opportunity to build and own QA processes from scratch

• Mix of manual and automation tasks

• Friendly and supportive team

• Competitive salary based on experience

Tech stack around QA:

• JavaScript / TypeScript

• Playwright / Cypress / Jest

• REST API testing (manual + automated)

• PostgreSQL / Prisma / NestJS

• Docker

• GitHub Actions (CI/CD)

Location: Remote

Type: Full-time

Company: LeadTower.io

About Us:

LeadTower.io is an ambitious startup building a modern platform to automate LinkedIn outreach and sales at scale. Our team is growing, and we’re looking for a Backend Developer (Middle level) to join us in building scalable backend services and integrations.

We work with a modern backend stack including NestJS, RabbitMQ, PostgreSQL, Redis, and Prisma, with a strong focus on clean architecture, microservices, and async processing.

Stack We Use:

• Node.js / NestJS

• PostgreSQL + Prisma

• RabbitMQ (async tasks, queues)

• BullMQ

• Redis (caching, queues)

• Microservices architecture

• Docker for local development

• Git + GitHub + CI workflows

Responsibilities:

• Develop and maintain backend services and REST APIs using NestJS

• Work with PostgreSQL and Prisma for data modeling and querying

• Implement message-based architecture with RabbitMQ / BullMQ

• Use Redis for caching and queuing tasks

• Participate in designing scalable backend architecture

• Collaborate with frontend developers and product managers

• Participate in code reviews and contribute to code quality

• Write clean, maintainable, and testable code

Requirements:

• 2+ years of commercial backend development experience

• Solid knowledge of Node.js and NestJS

• Experience with relational databases (PostgreSQL) and ORMs (Prisma or similar)

• Familiarity with messaging systems like RabbitMQ, BullMQ

• Experience working with Redis in production

• Understanding of RESTful API design principles

• Experience with Git and collaborative workflows

• Good communication and problem-solving skills

• Intermediate+ English (reading docs & team communication)

Nice to Have:

• Experience in microservices and distributed systems

• Familiarity with task queues, rate limiting, and caching strategies

• Unit/integration testing experience (Jest, Supertest, etc.)

• Experience in startup or fast-paced product teams

We Offer:

• Work on a fast-growing product with real users and traction

• Full remote and flexible schedule

• Clear tasks, no meetings chaos

• Direct impact on product architecture and features

• Friendly, fast-moving team with strong tech culture

• Competitive salary based on your level

Join LeadTower.io and help us build a powerful backend that scales sales automation to the next level.

Location: Remote

Type: Full-time

Company: LeadTower.io

About Us

LeadTower.io is a fast-growing startup building the future of LinkedIn sales automation. We’re on a mission to empower businesses to scale their outbound efforts through smart automation and clean UX. We’re looking for a Senior Frontend Developer who thrives in ownership, architecture decisions, and delivering polished, high-performance web experiences.

You’ll work with a modern stack based on React.js and Next.js, using Zustand for state, TanStack Query and Axios for data fetching, and Chakra UI for component design.

Your Responsibilities

• Own and evolve the frontend architecture of our platform.

• Build and maintain modern, responsive, and accessible UIs using React.js and Next.js.

• Lead component development using Chakra UI, with a focus on reusability and scalability.

• Manage global and local state with Zustand, and handle complex data flows with TanStack Query/Axios.

• Collaborate with the backend team to define API contracts and data structures.

• Optimize frontend performance (code-splitting, lazy loading, caching, etc.).

• Mentor other developers and participate in high-quality code reviews.

• Continuously improve the developer experience and frontend tooling.

• Contribute ideas to improve product UX/UI, performance, and scalability.

Required Skills and Experience

• 4+ years of experience in frontend development, including at least 1+ year at a senior level.

• Advanced proficiency with React.js and Next.js.

• Deep experience with component-based architecture and design systems like Chakra UI.

• Solid experience with Zustand or similar state management libraries (Redux, Jotai, Recoil).

• Hands-on knowledge of TanStack Query (React Query) and Axios for efficient data handling.

• Strong understanding of JavaScript (ES6+), TypeScript, and modern build systems.

• Experience optimizing frontend performance and managing SSR/SEO in Next.js.

• Strong knowledge of Git, code review best practices, and team collaboration workflows.

• Proactive mindset, great communication, and ability to work autonomously.

Nice to Have

• Experience with A/B testing, analytics, or feature flag systems.

• Familiarity with Storybook or similar tools for UI-driven development.

• Testing experience with Jest, React Testing Library, or Cypress.

• UI/UX sense and ability to contribute to product-level decisions.

• Background working with SaaS platforms or growth-stage startups.

What We Offer

• A product-first, developer-led environment where your voice matters.

• The opportunity to own and shape the frontend experience of a fast-growing platform.

• Full remote flexibility and async-friendly team culture.

• Competitive salary + performance-based incentives.

• An open, supportive, and feedback-driven team.

Join LeadTower.io and lead the frontend side of one of the most exciting platforms in B2B automation.

Let’s build something amazing — together.