Jobs Fullstack

Full Stack Developer

[Full-time, Remote, Freelancer]

SNEAK PEEK 

⇨ Location: Remote, GMT+0/GMT+4

⇨ Interview process: HR interview ⇨ technical interview ⇨ take-home challenge ⇨ final interview ⇨ offer 

WHO ARE WE? 

At Rounds, we believe in harnessing the power of cutting-edge technology to drive business success. Our transformative, machine-learning technology identifies and optimizes mobile assets, while our team of experts, with their unparalleled human capital and business acumen, provides the strategic direction and support to turn mobile assets into profitable businesses. Together, we are revolutionizing the mobile industry. 

THE ROLE

We are looking for an experienced Full-Stack developer with a passion for building complex systems to further expand our set of internal tools. You will architect and develop our core internal systems, understand and predict user interactions, and create well-written code, based on the business needs. You will work closely with other developers and QA testers, using the Agile methodology and a quality-first approach.

Hiring manager: Nadav Nagel, Software Team Lead 

WHAT ARE WE LOOKING FOR?

• 5+ years of commercial experience building publicly available websites
• 3+ years of experience in backend development using Typescript and Node.js
• Up-to-date with at least one of the latest UI frameworks (React, Vue.js, etc.)
• Detail-oriented and able to adhere to deadlines
• Excellent communication skills in both written and verbal English

INTERESTED?

Our recruitment process consists of the following steps: 

• HR interview: 30 min
• Take-home challenge.
• Technical interview: 60 min
• Final interview

Must-Have Skills: • Slack API / Slack App Development – 3+ Years • Microsoft Teams API / Teams App Development – 3+ Years • Node.js – 5 Years • React.js – 5 Years • TypeScript – 5 Years • Next.js – 5 Years

Company Overview: We are partnering with a well-funded, early-stage startup that is bringing modern AI to the enterprise service management space. Their platform lives inside Slack, turning internal help and support channels into intelligent, automated workflows — resolving employee questions faster through AI-powered ticketing, routing, and resolution. They’re backed by top-tier venture capital and notable angel investors from companies you’d recognize. If you’re passionate about creating outstanding software that delights users and want to work with cutting-edge technology, this is a great opportunity.

About the Role We’re looking for a Senior Integrations Engineer to join the core Platform team. In this role, you’ll architect, build, and scale deep integrations with Slack and Microsoft Teams — the two primary surfaces through which the platform delivers AI-powered ticketing, routing, and resolution to enterprise customers. Beyond messaging platforms, you’ll connect the product with the broader SaaS ecosystem (identity providers, HR systems, ticketing tools) and help shape the integrations infrastructure using Temporal to orchestrate complex workflows. This is a high- impact role where you’ll collaborate across product, platform, and engineering to make the product seamlessly fit into customers’ existing environments. This role is available as a part-time contract engagement with a clear path to a full-time position for the right person. We’re looking for someone who can demonstrate strong ownership and delivery from day one.

What You Will Do:

Build and maintain production Slack and Microsoft Teams integrations — including bot interactions, slash commands, message actions, adaptive cards, and real-time event handling via each platform’s APIs and SDKs • Extend platform capabilities across both messaging surfaces, ensuring feature parity, UX consistency, and reliable event processing between Slack and Teams deployments • Design, build, and maintain integrations with third-party systems such as identity providers, ticketing platforms, collaboration tools, and HR systems • Own and evolve Temporal-based integration orchestration workflows for reliable, stateful, and long-running processes • Define and implement scalable integration patterns that can be reused across multiple connectors • Improve integration infrastructure including CI/CD workflows, testing frameworks, and monitoring • Work within a TypeScript monorepo (TurboRepo) to build modular and composable integration services • Implement observability and reliability best practices — metrics, retries, error handling • Partner with customer success and product teams to troubleshoot, optimize, and improve integration behavior in production • Support internal tooling and UI components built with Next.js and React to configure and manage integrations

What We Are Looking For: • Proven experience building and shipping Slack integrations (Bolt SDK, Block Kit, Events API, Socket Mode) in production environments • Proven experience building and shipping Microsoft Teams integrations (Bot Framework SDK, Adaptive Cards, Graph API, Teams Toolkit) in production environments • Strong experience with Next.js, React, and TypeScript/Node.js • An eye for detail and the ability to implement scalable architecture • Proficiency with modern development tools including TurboRepo for monorepo management and experience with TailwindCSS/ShadCN • Skilled at diagnosing issues and devising efficient solutions in complex systems • A mindset toward automating repetitive tasks to improve efficiency and consistency • Strong communicator who enjoys collaborating across teams • Passionate about staying current with emerging technologies and continuously improving

We are looking for a Full Stack Developer with a strong frontend focus to join our fintech platform team. You will own the UI layer end-to-end while staying involved across the full stack, work directly with product, design, and business stakeholders to turn requirements into working software, and actively use AI tools to move faster and build better.

This is a hybrid role, and we are currently considering candidates based in Lviv (Ukraine). Fully remote work is not an option for this position.

What You Will Do
Frontend & UI
— Own the frontend architecture across Vue 3 and a dedicated Nuxt.js service
— Implement complex UI features with a strong sense of design — layouts, interactions, states, responsiveness
— Translate Figma designs into production-ready components, maintaining design fidelity
— Build reusable component libraries and enforce UI consistency across the platform
— Integrate frontend with GraphQL APIs and REST services
Backend & Integration
— Develop and maintain Node.js / Express microservices
— Design PostgreSQL schemas and manage data access with Prisma ORM
— Write and maintain GraphQL schemas, resolvers, and subscriptions

Communication & Collaboration
— Work directly with product managers and stakeholders to clarify requirements and scope
— Proactively flag risks, propose solutions, and keep stakeholders informed on progress
— Give technical feedback on design feasibility and suggest improvements
— Participate in code reviews with attention to quality and knowledge sharing

What We Are Looking For
— 4–5 years of production experience in full stack JavaScript / TypeScript development
— Strong Vue.js 3 (Composition API) and Nuxt.js skills
— A good eye for design: you care about spacing, typography, interaction states, and visual consistency
— Node.js, Express, PostgreSQL, Prisma, GraphQL — comfortable working across the full backend layer
— TypeScript across the entire stack
— Experience with AI-assisted development and an openness to integrating AI tools into daily engineering work
— Strong communication skills and experience working directly with non-technical stakeholders

Nice to Have
— Background in fintech, payments, or regulated financial products
— Hands-on experience with RabbitMQ or similar message brokers

Tech Stack: Vue 3, TypeScript, Node.js, GraphQL, PostgreSQL, Prisma

What We Offer
— Frontend-heavy role with real ownership over UI architecture
— Direct access to product and business stakeholders
— Modern microservices stack with no legacy debt
— AI-friendly engineering culture — we embrace tools that make you more effective
— Competitive compensation, remote-friendly, learning budget

About the Role

We are looking for a skilled Platform Engineer to join our payments team. In this role, you will be responsible for integrating and maintaining payment providers across multiple platforms, resolving technical issues, and developing robust payment solutions. You will work closely with product, QA, and business teams to ensure seamless payment flows for our customers worldwide.

Key Responsibilities
• Configure payment providers across multiple platforms, including PayAdmit, Corefy, and similar PSP/orchestration solutions.
• Manage end-to-end setup of payment methods, merchant accounts, routing rules, and cascading logic within payment platforms.
• Investigate, debug, and resolve bugs and issues related to payment processing, transaction failures, and provider integrations.
• Build and maintain RESTful APIs and webhooks to connect internal systems with third- party payment gateways.
• Monitor platform performance, transaction success rates, and provider uptime; proactively identify and address bottlenecks.
• Collaborate with QA engineers to write and maintain automated tests for payment flows.
• Participate in code reviews, technical discussions, and contribute to architectural decisions.
• Write clear technical documentation for integrations, configurations, and internal processes.

Required Qualifications
• 2+ years of experience in software development or platform engineering, with a focus on payment systems.
• Hands-on experience configuring at least one payment orchestration or PSP platform
(e.g., payAdmit, Corefy, Checkout.com, Stripe, Adyen, or similar).
• Solid understanding of REST APIs, JSON, and webhooks.
• Experience with debugging tools, log analysis, and monitoring platforms.
• Strong analytical and problem-solving skills with attention to detail.
• Good communication skills in English (written and verbal).

Nice to Have
• Familiarity with multiple payment platforms and provider ecosystems.
• Knowledge of PCI DSS compliance requirements and secure coding practices.
• Experience with cloud infrastructure (AWS, GCP, or Azure).
• Familiarity with containerization tools such as Docker and Kubernetes.
• Understanding of financial reconciliation, chargebacks, and settlement processes.
• Develop and maintain integration code for payment providers using Java, PHP, and/or Node.js.
• Proficiency in one or more backend languages: Java, PHP, or Node.js.

What We Offer
• Competitive salary and performance-based bonuses.
• Flexible working hours and remote-friendly environment.
• Opportunity to work with a global payments ecosystem and cutting-edge fintech products.
• Professional development budget and conference attendance support.
• Collaborative, transparent, and growth-oriented team culture.
 

We are seeking an experienced Full-Stack Engineer to contribute to the development of scalable, cloud-based applications and support ongoing product evolution.
 

Key responsibilities:

• Design and implement full-stack solutions
• Participate in system architecture discussions
• Collaborate with cross-functional teams
• Ensure timely delivery of product features
• Provide technical guidance to team members
   

Qualifications:

• 5+ years of experience in software engineering
• Strong proficiency in JavaScript and TypeScript
• Experience with React, Next.js, and React Native
• Backend development using Node.js frameworks (Nest.js, Express.js)
• Experience with PostgreSQL, MySQL, MongoDB, Redis
• Understanding of RESTful services and web protocols
• Version control using Git
   

We offer:

• Competitive compensation with performance incentives
• Career advancement opportunities
• Professional development (including English courses)
• Modern equipment and комфортне робоче середовище
• Office-based collaboration in Lviv
   

Interview stages:
HR screening → technical interviews → assignment → final discussion

Please share your CV to apply for this position.

Customer

Our customer is a leading Swedish telecommunications company, recognized for delivering innovative large-scale technology solutions across complex infrastructure environments. Sweden’s telecom sector is known for its advanced networks, high-speed connectivity, and pioneering role in 5G development. The company operates internationally, serving millions of users and partnering with global technology leaders to drive digital transformation.

Project

We are developing a centralized portal to streamline and automate product documentation creation and management. This platform serves as a unified service, enabling teams to generate, organize, and maintain comprehensive documentation libraries with ease. By combining document management with process automation, it improves operational efficiency and minimizes human error throughout the documentation lifecycle.

Key Technologies: Python (Django), AngularJS, Kubernetes, CI/CD, Jenkins

Requirements

• 2+ years of experience working with Python
• Experience with CI/CD pipelines and related tools
• Understanding of backend development principles and RESTful APIs
• Front-end development experience, including component-based architecture
• Knowledge of relational databases and data modeling concepts
• Familiarity with testing practices for both frontend and backend applications
• Basic understanding of cloud environments and deployment processes
• Strong Intermediate (B2) level of English or higher

WILL BE A PLUS:

• Experience with AngularJS
• Knowledge of JavaScript and TypeScript

Responsibilities

• Contribute to technical solutions and write maintainable, high-quality code
• Develop new features and components, assist with refactoring, debugging, and software maintenance
• Participate in peer code reviews and follow established engineering practices
• Perform unit and integration testing to ensure software reliability
• Assist in analyzing requirements and preparing feature designs
• Create and maintain technical documentation
• Join conference calls and meetings with the Customer when required
• Be an active member of the SAFe Agile team, participating in estimation, grooming, and planning sessions

About us
BetterMe — a global wellness ecosystem empowering millions to become better — physically, mentally, and emotionally. We build what makes people better and keep challenging ourselves to inspire others.

Your impact:

• Lead the development of a new Style Mobile application using React Native, ensuring high technical quality and scalable architecture from the start.
• Collaborate with the team to validate existing research and prepare the platform for supporting both Web and Mobile applications.
• Identify and escalate required backend improvements to enable seamless support for multiple client applications.
• Contribute to the development of the Style web platform and related services (frontend and backend) during onboarding.
• Support and mentor your colleagues in React Native development, helping the team grow mobile expertise and avoid architectural gaps.
• Participate in full-cycle product development: architecture discussions, feature implementation, code reviews, testing, and documentation.
• Work closely with product and engineering teams to improve funnels and deliver features that drive user impact.
• Contribute to engineering culture through team processes, knowledge sharing, and cross-team collaboration.

About you:

• Strong experience building production mobile applications with React Native.
• Hands-on experience deploying apps to App Store and Google Play (certificates, signing, release pipelines, review processes).
• Solid frontend experience with React, Redux Toolkit, TypeScript, Next.js.
• Hands-on experience with Node.js / NestJS, PostgreSQL, TypeORM. 
• Confident user of AI engineering tools such as Cursor, GitHub Copilot, ChatGPT, Claude Code or similar.
• Comfortable working in product teams with a product mindset and ownership attitude.
• Proactive engineer who can suggest improvements, challenge existing approaches, and help evolve the architecture.
• Strong collaboration skills and ability to work in cross-functional teams.
• Ability to balance delivery speed with code quality and maintainability

Will be a plus:

• Experience mentoring engineers or helping teams adopt new technologies.
• Familiarity with mobile analytics and growth tools such as Firebase, AppsFlyer, Amplitude, or SQLite.
• Experience integrating third-party services such as Shopify API, Solidgate (payments), email marketing platforms, Zendesk.
• Experience working in consumer product companies, especially in wellness, lifestyle, or subscription products.
• Interest in improving engineering processes, identifying technical debt, and proposing architectural improvements.

What you get at BetterMe: 
 

A mission that inspires. Every line of code, every design, every idea helps millions of people become healthier and more confident.

Trust without micromanagement. You manage your time and make decisions independently. We value outcomes, not online hours.

Growth opportunities. 90% of our leads have grown within the company. There’s space for initiative, new responsibilities, and real career upgrades.

Flexible work format. Choose what works best for you — office, remote, or hybrid.

Wellness in practice. Offline: workouts with professional trainers in our corporate gym, massage, corporate lunches, sports, and team activities — everything you need to recharge and reset together. Online: regular online workouts, partner discounts, and free access to our products.

Health insurance & corporate doctor.

Open communication. Transparency across teams, honest feedback, and support for initiatives are part of our everyday culture.

Support for sports events. We cover entry fees and encourage the team to compete and participate together.

Modern equipment. We provide new hardware and everything you need for productive work.

Legal & finance support. Experienced lawyers and financial specialists are always there to help — from documents to personal consultations.

About the role

We are building a revolutionary system at the frontier of technology and AI.

As a AI-native Engineer, you won’t just write code — you will shape the future of how apps are built. You’ll be part of the early execution engine—shipping core capabilities, refining the experience, and elevating reliability. Expect tight loops, clear ownership, and visible impact. You'll engage directly with first clients, adapt the platform to their needs, and set the stage for the next generation of software creation.

What we’re looking for

We want someone who doesn’t just “fit the role” but defines it:

• Open-minded explorer: ready to try bold ideas, new approaches, and cutting-edge tools.
• Hacker mindset & problem solver: able to connect the dots across complex systems and find elegant solutions.
• Analytical and resilient: thrives in debugging intricate, interconnected architectures.
• Startup speed enthusiast: comfortable hacking fast, shipping early, learning from feedback, and polishing later.
• Experienced in Cursor, Claude Code or other AI coding assistants.
• Passionate about AI-driven Engineering: turning AI into your engineering team-mate.
• Natural leader: with the drive to inspire and guide people.

Why join us?

• Be among the first engineers driving a bold, world-changing vision.
• Work at the bleeding edge of technology and AI, where experimentation is not just allowed but expected.
• Direct influence on product.
• A chance to build something that reshapes how things get done in today’s world.
• A team that values curiosity, creativity, and the pure joy of hacking together the future.

This isn’t just another job. This is your chance to engineer the future of software itself.

Technical stack 

!Prior experience with these technologies isn't mandatory, provided you demonstrate a strong willingness to learn and leverage AI tools. At the end of the day, we consider these to be just tools wielded by a SE.

Core technologies:

• TypeScript, React.js, Next.js, Bun.
• ClickHouse, PostgreSQL, Redis
• Docker / Kubernetes
• Kafka
• Supabase, Inngest, Posthog

Nice to have:

• Vue.js
• Python
• Go
• Ruby

Hiring Process

Stage 1: Interview with HR (1h).

Stage 2: Interview with VP of Engineering.

Stage 3: Technical assignment (optional).

Stage 4: Tech. Interview

Stage 5: Interview with the team.

What we offer for your success

• Very warm and friendly working environment and flexible working schedule.
• 20 days off + paid national holidays, and 12 sick days paid by the company per year.
• Medical insurance, and health protection programs (with COVID-19 and dental coverage).
• Continuous professional development and growth opportunities.

Summary

We are seeking a Principal Full Stack Engineer with extensive experience to develop and own core features for an AI-driven data and media platform, focusing on

backend, frontend, data workflows, and system design.

General Information

The platform integrates data ingestion pipelines, graph workflows, LLM-driven agent chains, media generation, and copilot experiences. The environment is early-stage, emphasizing rapid iteration, collaboration, and high engineering standards.

Tasks and Deliverables

- Develop and deploy production SaaS features including agent systems, GraphRAG, DAG visualizations, and data trees

- Integrate AI and media tools such as Claude Sonnet, FAL.ai, and Remotion

- Lead frontend development using React, Vite, TypeScript, TanStack Router/Query, Tailwind, and shadcn/ui

- Design backend architecture with Python, FastAPI, CopilotKit, and PydanticAI

- Model data and graph workflows with Neo4j and PostgreSQL

- Build APIs and integrations for agent workflows, AI generation, and DAG control

- Implement data ingestion pipelines for formats like GEDCOM, images, and PDFs, managing data variability

- Architect and develop graph visualization interactions with GoJS

- Enhance system reliability, observability, and performance across the stack

- Make technical decisions, simplify system complexity, and establish engineering standards

- Support future features including OCR, multi-agent pipelines, and structured data parsing

- Deliverables include ingestion pipelines for unified searches, metadata parsing, deduplication, auto-tagging, and verification engines for confidence scoring, duplicate detection, conflict flagging, and report generation within the copilot interface

Required Experience

- Required: 10+ years of full-stack software engineering experience with ownership of distributed or multi-service systems

- Required: Proven experience designing, running, and managing multi-agent AI systems or agent swarms (e.g. CrewAI, LangGraph, AutoGen, or equivalent)

- Required: Strong proficiency in Python, FastAPI, and PydanticAI for backend development

- Required: Strong proficiency in React, TypeScript, Vite, TanStack Router/Query, Tailwind, and shadcn/ui for frontend development

- Required: Strong experience with graph data models, Neo4j, and PostgreSQL performance optimization

- Required: Experience building ETL/ingestion pipelines handling messy or inconsistent data

- Required: Proven ability to design agent-driven or LLM-powered workflows (Claude, CopilotKit, or equivalent)

- Required: Experience with AI/ML integrations and media generation tools (e.g. FAL.ai, Remotion, or equivalent)

- Required: Experience with AWS cloud infrastructure (Lambda, S3)

- Required: Ability to simplify complex UX and data flows for end-users

- Required: Strong judgment around system boundaries, interfaces, and maintainability

- Nice to have: Experience with graph visualization libraries (GoJS) and GEDCOM or genealogy data formats

Our customer is the European online car market, with over 30 million monthly users and a presence in 18 countries. As a Lead FullStack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers.
 

About the role:
We’re looking for a Lead Software Engineer who takes end-to-end ownership, thrives in ambiguity, and wants to build systems that matter. This role is central to rethinking and rebuilding our clients’ auto repossession and remarketing platform, a system that directly influences how vehicles are recovered, processed, and remarketed across the big automotive ecosystem. This is an AI-first engineering role—not in name, but in practice. You’ll continuously evaluate where AI (including LLMs and agentic tools) can meaningfully improve engineering velocity, system quality, and operational efficiency, while applying strong judgment about where it should not be used. You’ll help shape architecture, influence technical direction, and own what you build—from design to production. 

What You’ll Do:

• Build & Evolve Critical Systems
• Rethink and reshape core workflows based on a deep understanding of auto repossession and remarketing processes.
• Design and implement scalable, resilient systems using modern architectural principles: clear service boundaries, modularity, and observability.
• Incorporate LLMs and AI-driven components to improve data validation, document processing, and operational decision-making.
• Use AI-assisted and agentic coding tools to accelerate development—while maintaining high standards for correctness, security, and maintainability.
• Own Architecture & Technical Decisions
• Drive architectural discussions and decisions, balancing pragmatism with technical excellence.
• Set and enforce high-quality bars for new services and modules, with a focus on testability, performance, and reliability.
• Identify and reduce technical debt in ways that measurably improve developer velocity and system robustness.
• Build With an Ownership Mindset
• Work across the full software lifecycle: design, build, deploy, operate, and iterate.
• Embrace a “you build it, you own it” DevOps mindset alongside your team.
• Make thoughtful trade-offs between effort, quality, and user value—always with accountability for outcomes.
• Collaborate & Lead
• Work closely with product managers, designers, and other engineers in an agile, cross-functional team.
• Contribute ideas, challenge assumptions, and continuously improve how we build software.
• Mentor and support other engineers through code reviews, design discussions, and technical leadership.

What We’re Looking For:

• Canadian timezone work hours
• A Lead (7+ years of experience) engineer who owns results, not just implementations.
• Someone who enjoys complex problem-solving and isn’t afraid of legacy systems—or changing them.
• Strong engineering fundamentals: clean code, testing discipline, system design, and performance awareness.
• Strong experience with TypeScript and modern React / Next.js
• Strong experience building production systems with .NET (Core / modern .NET preferred).
• Strong experience building production systems with C#
• Comfort operating in production environments and learning from real-world feedback.
• A builder’s mindset: If you can think it, you can build it. If you build it, you own it.
• Experience leveraging AI, Generative AI (GenAI) to enhance engineering productivity, automate repetitive tasks, and optimize workflows. You should demonstrate the ability to integrate AI-driven solutions into your daily work — such as code generation, debugging, reviews, documentation, and decision support—to improve efficiency for yourself and your teams. A proactive approach to exploring and implementing AI tools that drive innovation and streamline development processes is highly valued. (Strong must)

Product company EasyHealth which is working in healthcare area is looking for fullstack developer.

Responsibilities:
- Demonstrated expertise in enterprise software development and maintenance
- Technical analysis and design, application development, and deployment to support business requirements
- Ability to analyze, solve problems and work with the team to identify and fix the root cause of the issues (be it programmatic or performance)
- Working closely with a development team and business units to assist in the design of functional specifications
Identifies opportunities for system enhancements, including technology upgrades, database interactions, and data modeling tools
- Follows company IT processes and IT procedures for managing change, managing code, and scheduling changes using company standard tools and processes.

Qualification for the Job:

Solid 7-10 years of C# .NET and Angular development experience Experience with SQL Server DB, CQRS, Bitbucket and JIRA
Able to contribute to design and architecture Excellent communication and coordination abilities
Experience on cloud-based platforms like Azure and AWS a plus Experience with US healthcare projects is a plus

Key skill:
.Net Core - Entity Framework Core, Web API, identity JWT, Clean architecture
SQL Server - Stored Procedure, Query Building, Query Analyzing, Query Optimization, Data transition Angular - Module component intersection services


 

The company is an international online marketplace for digital goods. It connects official distributors with customers, providing access to hundreds of products, including digital gift cards, prepaid payment solutions, and top-ups for popular platforms such as gaming and entertainment services.

The company is growing and expanding its technical team. They are looking for a Full Stack Developer who is ready to focus primarily on frontend development (70%) while also contributing to backend tasks (30%), helping to improve the current platform and participate in building a new one.

Why This Opportunity Is Interesting

• Real Impact: A small, agile team with minimal bureaucracy. Direct communication with founders and fast implementation of ideas in production.
• Professional Growth: Close collaboration with a Senior Developer, offering strong mentorship and learning opportunities.

• Variety of Tasks: Not limited to basic UI work — includes analytics systems, anti-fraud solutions, and data protection features.

   

Responsibilities:

• Participate in the development of a new platform (Django / Python / FastAPI) and internal services
• Develop and maintain the frontend (React / Next.js + TypeScript), including building interfaces from scratch
• Work with databases (PostgreSQL) and optimize queries

• Contribute to infrastructure migration to AWS

   

Tech Stack

• Backend: Python, FastAPI, Asyncio, Django, Celery, RabbitMQ
• Frontend: React, TypeScript
• Database: PostgreSQL

• Infrastructure: Docker, CI/CD, AWS

   

Requirements:

• Strong frontend development skills with solid experience in React and TypeScript
• Commercial experience with Python (FastAPI) and asynchronous programming (Asyncio)
• Experience with relational databases (PostgreSQL or MySQL)
• Understanding of DevOps principles, Docker, and CI/CD processes
• Knowledge of microservices architecture
• Ability to write and design test cases
• Understanding of design patterns and ability to apply them appropriately

• Confident use of AI tools to automate and accelerate development, with willingness to adopt new AI technologies

   

Nice to Have

• Experience with AWS (or willingness to learn quickly)
• Experience with Django framework

• Active use of AI tools in development

   

Benefits:

• Salary: depending on skills and contribution
• Monthly payments under a contractor agreement with an international company (EUR or USDT)
• Fully remote work from anywhere in the world
• Schedule: Full-time, with core hours between 10:00 – 20:00 (UTC+3) for team alignment, without strict time tracking
• Perks: Discounts on digital products (subscriptions, top-ups, games)

We are looking for a Senior Technical SEO Architect to build a Programmatic SEO (pSEO) engine from scratch. Your goal is to transform our growing supply-side database into a zero-marginal-cost demand generation engine. You will architect a system that automatically generates tens of thousands of hyper-local, high-intent landing pages (e.g., "emergency plumber in Brighton") at scale, without sacrificing quality or risking algorithmic penalties.

If your approach to SEO is installing WordPress plugins, buying backlinks, or writing meta tags, this is NOT the role for you. We are looking for an engineer who thinks in systems, automation, and scalable infrastructure.

Key Responsibilities

• Architect the Frontend Sync: Build and deploy a scalable Next.js (App Router) frontend. You will engineer an On-Demand Incremental Static Regeneration (ISR) architecture triggered by Python webhooks to ensure our SEO pages update in real-time when a professional registers or gets a new review, without rebuilding the entire site.
• Manage Crawl Budget at Scale: Design and implement dynamic, chunked XML sitemaps capable of handling 100,000+ URLs efficiently to ensure Googlebot crawls and indexes our content seamlessly.
• Programmatic Internal Linking: Leverage PostgreSQL and PostGIS (ST_DWithin) to create intelligent, automated spatial internal linking structures (e.g., "Nearby Service Areas") that distribute PageRank and prevent orphan pages.
• Schema & E-E-A-T Engineering: Inject dynamic JSON-LD structured data (LocalBusiness, aggregateRating, hasCredential) into our templates using real UGC and verification statuses to build algorithmic trust and avoid "Thin Content" penalties.
• Log Analysis & Performance: Monitor Core Web Vitals, server logs, and indexation rates to continuously optimize rendering speeds and crawler efficiency.

What We Are Looking For

• Full-Stack Expertise: Deep, hands-on experience with Next.js (React Server Components, SSR, ISR) and Python (FastAPI/Django).
• Database Mastery: Strong proficiency in relational databases (PostgreSQL) and spatial queries (PostGIS).
• Technical SEO Authority: Proven experience managing sites with 50,000+ pages. You understand how Google renders JavaScript, how to optimize crawl budgets, and how to build programmatic architectures that comply with Google's Spam and Helpful Content policies.
• Analytical Mindset: You measure success not just in traffic, but in conversion rates, indexation coverage, and LTV:CAC ratios.

What We Don't Want

• No reliance on the Google Indexing API for standard web pages.
• No "AI content spinners" or doorway page tactics. We build on real UGC.
• No generic SEO agency backgrounds without hands-on coding experience.

Insiders is a fast-growing IT company which employs about 200 people. Our company focused on providing innovative digital services and cutting-edge technologies to solve complex business challenges.

We are located in Lviv and currently work in an office format. For candidates from other cities, we offer relocation (an apartment located near the office, this option is free).

What we expect from the candidate:

•Solid understanding and ability to the practical application of HTML/CSS, JavaScript and TypeScript. 

•Proofed experience in Node.js with Express.js and Nest.js frameworks.

 •Knowledge of MySQL, PostgreSQL, MongoDB and Redis.

•Deep knowledge and understanding of networking - REST API standards, HTTP/HTTPS methods. 

•Solid understanding of React/Next.js. 

•Experience with Git. 

what we offer:

- free study in our Corporate English Academy

- growth and development opportunities for young developers even if you have no commercial experience

- regular salary review (after the completion of each contract)

- provision of Apple equipment

- comfortable office with all amenities not far from the center (uninterrupted internet, generator, tea and coffee, pastries).

- timely payment of salaries.

- corporate events, teambuildings, etc.

- working on projects side by side with Senior developers, which will give you the opportunity to learn and develop.

Senior Full-Stack Engineer

Lidgen · Remote · Full-Time

About Lidgen

Lidgen (lidgen.io) is a fast-moving Sales Tech startup building cold outreach and lead generation infrastructure for B2B companies. We operate in the B2B lead generation and cold outreach space, building infrastructure used by sales teams to run outbound campaigns at scale. We move fast, we build smart, and we hold ourselves to a high standard. You'll work directly with the founder with real ownership and real impact on a product actively used by clients.

The Role

We need a senior full-stack engineer who can own the technical side of the company end to end — not just write code, but make proper tech decisions, manage infrastructure, and build internal automation that keeps operations running smoothly.

You'll start by blending into the existing setup, then progressively take full ownership of everything technical — with the goal of becoming the sole technical lead at Lidgen.

This isn't a ticket-execution job. We need someone with judgment, not just execution speed.

What You'll Own

• Full-stack codebase — features, architecture, code quality
• Database and auth layer — schema design, performance, security
• Cloud infrastructure — deployments, VM management, monitoring
• Automation workflows — lead enrichment, outreach launches, internal ops
• Internal tooling — AI-powered tools that reduce manual work
• API integrations — our GTM tool ecosystem

Core Tech Stack

• Next.js 16, React, TypeScript, TailwindCSS
• Supabase (PostgreSQL)
• Google Cloud Platform (GCP)
• n8n running on Docker (GCP VM)
• GitHub + GitHub Actions (CI/CD)
• Claude Code in VSCode for AI-assisted development
• Slack for daily communication (Israel business hours, UTC+3 — same timezone as Ukraine)

Requirements

Must Have

• 3–4+ years with Next.js, React, and TypeScript
• Solid experience with TailwindCSS
• Experience with Supabase or PostgreSQL
• Comfortable owning cloud infrastructure (GCP or similar)
• Strong API integration experience
• Available during Israel business hours (IST / UTC+3) on Slack
• Able to make independent technical decisions without hand-holding
• Professional English communication

Good to Have

• Experience with n8n, Make, or similar automation tools
• Familiarity with cold outreach platforms: Smartlead, Instantly, Clay
• Docker and containerized deployment experience
• Experience building internal back-office tooling
• Familiarity with AI-assisted development tools (Claude Code, Cursor, etc.)

Compensation

Starting: $1,500/month for the first month (trial period)

Growth path: $2,000–$2,500/month upon successful completion of the trial. As you take on full technical ownership and replace the need for additional part-time developers, compensation grows accordingly.

This is a real long-term role with real upside — not a short-term contract.