Jobs Fullstack

Responsibilities

• Develop and maintain backend functionality using PHP 7.4 and Symfony 4.4.
• Work with MySQL (MariaDB): queries, optimization, schema updates.
• Build and enhance UI components using React.
• Maintain and extend legacy frontend parts built with jQuery.
• Design and support REST APIs for frontend-backend integration.
• Participate in code reviews and technical discussions.
• Debug, optimize, and improve system performance.
• Collaborate with product, QA, and other developers.

Requirements

• 3+ years of experience in full-stack development.
• Strong experience with PHP and Symfony framework.
• Solid knowledge of MySQL/MariaDB.
• Practical experience with React.
• Experience working with jQuery and legacy frontend code.
• Understanding of REST APIs and client-server architecture.
• Experience with Git and development best practices.

As A Plus

• Experience with upgrading legacy systems.
• Knowledge of Docker or CI/CD pipelines.
• Experience writing unit or integration tests.
• Familiarity with Agile/Scrum processes.

We Offer

• Competitive salary
• Flexible schedule
• Social package
• Courses, webinars, seminars to increase professional skills
• Snacks & fruit, foosball, fun office environment
• Horizontal hierarchy. No micromanagement pressure
• Open company culture where your ideas and initiatives are valued
• Regular team building & corporate events
• International projects

About the Product

We’re building a web3 platform focused on crypto options trading. It's like building an exchange from scratch.

The product operates in a real-time environment where market data, user actions, and financial state must stay consistent and reliable at all times. We work with live trading flows, user balances, deposits and withdrawals, and systems where correctness and trust are critical.

At the same time, we’re an early-stage startup — small team, fast iterations, and product decisions driven by user value rather than process.

This is a high-responsibility environment where engineering quality, speed, and product thinking matter equally.

The Role

We’re looking for a highly autonomous Full-Stack Engineer to own the entire platform layer outside of the trading engine.

You will be the solo full-stack owner of everything related to the user-facing system:

• Web application and UI
• Authentication and account flows
• Deposits, withdrawals, balances
• User dashboards, analytics, and statistics
• Product features and UX improvements

This role requires strong product thinking, architectural ownership, and the ability to move fast with minimal supervision.

Tech Stack & Environment

• React / Next.js (TypeScript)
• Nest.js
• WebSockets (real-time data)
• REST APIs
• PostgreSQL
• Docker
• Direct work with VPS servers
• CI/CD pipelines (self-managed)

You will be responsible not only for development, but also for:

• Deploying and debugging your services
• Setting up and maintaining CI/CD
• Monitoring and fixing production issues
• End-to-end ownership of your features

AI-First Development

We actively use AI in development.

You’ll be working with tools like Cursor/Claude Code.

The expectation is that you are comfortable using AI to move faster, explore solutions, and improve productivity.

What You’ll Work On

• Building high-quality product features end-to-end
• Working with real-time market and user data
• Designing systems that handle money safely and consistently
• Ensuring correctness of balances, transactions, and financial logic
• Creating polished UI with strong attention to detail, animations, and UX
• Integrating analytics, tracking, and product metrics
• Participating in product planning and decision-making

We are user-first.

Consistency, reliability, and trust are critical — this is a financial product.

What We’re Looking For

• 4+ years of full-stack experience
• Strong React / Next.js / TypeScript
• Solid backend experience (Nest.js)
• Strong understanding of PostgreSQL and data modeling
• Experience working with WebSockets or real-time systems
• Ability to design architecture and own systems independently
• Comfortable working directly with servers, Docker, and deployments
• Experience setting up and maintaining CI/CD
• Strong debugging skills across the full stack

Mindset matters more than tools:

• Startup experience or comfort in fast-moving environments
• Product mindset — you care about user experience and outcomes
• High autonomy — you don’t wait for detailed instructions
• Ability to make pragmatic decisions quickly
• Strong code quality standards and engineering taste
• Ability to quickly understand and work with existing code
• Willingness to jump into critical issues when needed

Why This Role Is Interesting

• Founding engineer position with high product ownership
• Strong growth opportunity through direct mentorship and hands-on architecture work
• Direct impact on how the platform looks and works
• Minimal bureaucracy, fast decision cycles
• Work directly with the CTO and a small, strong engineering team
• Opportunity for future equity/options
• Real product challenges: real-time systems, financial accuracy, production ownership

You’ll build the intelligence and autonomy layers on top of a solid architecture: .NET 9 modular monolith + Python/FastAPI services on GCP (Pub/Sub, Cloud Tasks, BigQuery, Supabase/PostgreSQL) with live Meta Ads API and Shopify GraphQL integrations.
In the first 90 days you’ll deliver three defined sprints: Shopify attribution + benchmarks (Sprint 1), Creative Intelligence with embeddings + LLM fallback (Sprint 2), and an agentic loop with an Action API that executes approved Meta Ads actions (budget scaling, pause, deploy) with audit/audit trail (Sprint 3).

Product & Environment

We’re building a system with a modern stack and live integrations, where your decisions affect real ad accounts:

• C#/.NET 9 modular monolith, Python/FastAPI microservices, Next.js 16, Supabase/PostgreSQL, BigQuery, Google Cloud (Pub/Sub, Cloud Tasks, GCS)
• Integrations with Meta Ads API and Shopify GraphQL
• 20 repositories, ~95k LOC, event-driven pipeline

How We Work

Claude Code is not optional. We use AI as a force multiplier: we measure output, not hours. The code must work, tests must pass, and APIs must behave correctly.
The wrong candidate either refuses to use AI tools (“I prefer to write it myself”) or over-trusts them (“Claude Code wrote it so it must be correct”).

Responsibilities

• Build features in .NET (core API) and Python/FastAPI (pipeline / categorization / agent services)
• Integrate with Meta/Shopify and work on real budget/campaign changes
• Work with PostgreSQL: schemas, migrations, indexes, query optimization
• Strong testing culture: unit/integration/E2E where needed

Requirements (Non-negotiable)

• Production C# / .NET 8–9: EF Core migrations, DI patterns, middleware; able to read a modular monolith without “hand-holding”
• Experience with GraphQL resolvers (HotChocolate is a plus, but any GraphQL server is fine)
• Production Python / FastAPI: async/await, Pub/Sub message handling, gRPC; integrations with AI APIs (OpenAI/Anthropic, etc.)
• API integrations: integrated with at least two complex third-party APIs (Meta Ads / Google Ads / Shopify GraphQL / Stripe, etc.), including rate limiting, pagination, webhooks, versioning
• AI-augmented development: daily use of Claude Code / Cursor / Copilot (or similar) + understanding where they fail
• Testing discipline: tests are part of the process, not “later”

Strong Plus

• Ecommerce/DTC (Shopify, attribution, ROAS, NC vs returning customers)
• Experience with embeddings / cosine similarity / clustering / recommendations
• Event-driven architecture (Pub/Sub or Kafka), idempotency, DLQ, eventual consistency
• Hands-on GCP (Cloud Run, Cloud Tasks, Pub/Sub, BigQuery, GCS)
• Experience preparing a SaaS/agency for exit (focus on quality, documentation, system autonomy)

What You’ll Build (First 90 Days)

We have 3 detailed sprints — no ambiguity or fluff — with clear deliverables from Day 1.

Sprint 1 (Weeks 1–2): NC Attribution + Shopify Integration

• Customer/Order entities; NC classification (customer.numberOfOrders == 1)
• Channel attribution via Shopify customerJourneySummary + click ID parsing (fbclid/gclid/ttclid)
• EWMA benchmark fixes + unit tests; CM1/CM2/CM3 contribution margin; Benchmarks page API

Sprint 2 (Weeks 3–5): Creative Intelligence + Testing Arena

• Attribution Confidence scoring (High/Med/Low/Dark)
• Efficiency Score (0–100), zone classification (Winner/Functional/Testing/Kill Zone)
• Persona/Angle categorization via embedding similarity + LLM fallback
• Creative Matrix data layer, Scale Opportunities endpoint

Sprint 3 (Weeks 5–8): Agentic Loop + Owner Independence

• Decision Engine (rules-based action queue + priority scoring)
• Action API: execute approved actions via Meta Ads API (budget scaling, pause, deploy)
• Decision logging + audit trail
• Integrations: Nano Banana creative generation, MILA AI assistant, brand onboarding

Not a Fit If

• You think AI coding tools are a fad or “beneath senior engineers.” Our workflow is built around them.
• You need architecture hand-holding. Sprint scopes are detailed, but you must make real-time decisions on data modeling, API design, and integration patterns without waiting for approval.
• You only work in one language. This role requires fluency in both C# and Python. TypeScript is a bonus, not required for this scope.
• You’ve never integrated with complex third-party APIs. If your experience is mostly internal CRUD apps, Shopify/Meta edge cases will slow you to a crawl.
• You ship code without tests. We have 440 lines of untested financial math (P0 fix). Testing is core to the job, not “if there’s time.”
• You need a detailed spec for every function. We define WHAT to build and WHY — you decide HOW.
• You want a strict 9–5. This is a high-intensity engagement with a clear deadline. We’re not asking for 80-hour weeks, but we need someone who ships consistently and communicates proactively when blocked.

We are looking for a Middle Full Stack Web-Developer (Retool / JavaScript / SQL) to fintech project.

Full-time, Office, 10:00–19:00 (Kyiv) 

Core requirements:

• Strong knowledge of JavaScript 
• At least 2+ commercial experience with JS
• At least 1+experience in e-commerce, FinTech or Affiliate Marketing
• Expert at SQL proficiency (SELECT, JOIN, filters)
• Deep understanding of API structure and data workflows
• Ability to quickly navigate app logic and update UI/logic
• Attention to detail and accuracy
• Excellent communication and time management skills 

Responsibilities:

• Develop new functionality in Retool
• Implement JavaScript logic (queries, scripts, events)
• Work with PostgreSQL / MySQL / Maria DB
• Integrate external services via API
• Optimize forms, tables, data display, and business logic
• Maintain and improve existing Retool applications

Would be a plus:

• Experience with Retool or other low-code platforms
• Basic understanding of backend concepts
• Node.js experience 

We offer:
 

• Full-time work in a creative team
• Cozy office in Kyiv 

• Schedule: Monday–Friday, 10:00–19:00

   

👉 Feel free to contact me. Let's discus details. Looking forward for your CV!

We are looking for a Middle Full Stack Web-Developer (Retool / JavaScript / SQL) to fintech project.

Full-time, Office, 10:00–19:00 (near Promenada Mall, Bucharest, Romania)

Core requirements:

• Strong knowledge of JavaScript 
• At least 2+ commercial experience with JS
• At least 1+experience in E-commerce, FinTech or Affiliate Marketing
• Expert at SQL proficiency (SELECT, JOIN, filters)
• Deep understanding of API structure and data workflows
• Ability to quickly navigate app logic and update UI/logic
• Attention to detail and accuracy
• Excellent communication and time managment skills 

Responsibilities:

• Develop new functionality in Retool
• Implement JavaScript logic (queries, scripts, events)
• Work with PostgreSQL / MySQL / Maria DB
• Integrate external services via API
• Optimize forms, tables, data display, and business logic
• Maintain and improve existing Retool applications

Would be a plus:

• Experience with Retool or other low-code platforms
• Basic understanding of backend concepts
• Node.js experience 

We offer:
 

• Full-time work in a creative team
• Comfortable office near Promenada Mall

• Schedule: Monday–Friday, 10:00–19:00

   

👉 Feel free to contact me. Let's discuus details. Looking forward for your CV!

About the Role

As a Senior Full Stack Developer, you will play a pivotal role in designing, developing, and maintaining our web applications, ensuring high performance and scalability. You will work closely with cross-functional teams to deliver high-quality software solutions while contributing to projects that integrate advanced machine learning models, including large language models (LLMs), to deliver personalized user experiences and innovative features. You’ll be part of a small, collaborative team that values continuous improvement and embraces the latest in technology.

Our technology stack includes .NET Core, C#, React.js, Node.js, Typescript, SQL Server 2019, Docker, Kubernetes, Google Analytics, and Power BI.

Our ecosystem includes 170 connected applications and services, our main database is 2 TB, our sites handle 1 million visitors a day and 2 billion requests a month, and we release changes to production several times a day. We are a continuous integration and continuous deployment (CI/CD) organization. 

What You’ll Do:

• Guiding the team in making well-informed technical decisions that enhance the quality and maintainability of our solutions.
• Collaborating with cross-functional teams to demonstrate how they can effectively leverage our infrastructure to meet their objectives.
• Designing, developing, and maintaining robust, scalable, and efficient web applications, backend logic modules and database structure.
• Identifying and implementing strategies to improve the stability, performance, and scalability of our applications and services.
• Responding promptly to production incidents, employing creative problem-solving skills to minimize downtime and mitigate potential issues.
• Mentoring and supporting team members, fostering a culture of continuous learning and technical excellence.
• Conducting code reviews and ensuring adherence to coding standards and best practices across the team.
• Participating in the evaluation and integration of new technologies, including AI and automation tools, to drive innovation and efficiency.

What We’re Looking For:

• Minimum of 5 years of professional experience in full-stack development.
• Extensive experience with React.js, including state management (Redux, Context API) and component-based architecture.
• Proficiency in .NET frameworks, C#, and data access technologies.
• Familiarity with Unit / Integration tests using any of Jest, NUnit, Playwright, React Testing Library.
• Strong knowledge of front-end technologies such as HTML5, CSS3, JavaScript, and TypeScript.
• Familiarity with database systems such as SQL Server or MySQL.
• Strong knowledge of design and architectural patterns, SOA design & web service development.— Strong understanding of development processes.
• Experience with LLMs / Generative AI tools (e.g., OpenAI, Copilot, Cursor).
• Experience with Web Page performance optimization and measurement will be a plus.— Degree in Computer Science, a related discipline or equivalent work experience.
• Upper-intermediate level of English.
• Excellent problem-solving and analytical skills, with a keen attention to detail.
• Strong communication and interpersonal skills, with the ability to work effectively in a team-oriented environment.
• Ability to manage multiple tasks and prioritize effectively in a fast-paced environment
• Demonstrated leadership abilities, with a track record of mentoring and guiding junior developers.

Perks and Benefits

• Time off throughout the year (paid and unpaid)
• Professional development support and encouragement
• Resources to help improve your overall well-being
• Free JustAnswer membership

Join a team that makes changes and meets business goals!

We value responsibility, open communication, technical common sense, and working together toward real results. If you’re looking to grow in a strong team and see the impact of your work — you’re in the right place.

Must have

• React, Next.js, Node.js, Fastify, TypeScript, MySQL, AWS(cost and usage, EC2)
• A result and client-oriented approach
• Strong Communication and presentation skills

• Intermediate English

   

Requirements:

• React.js
• TypeScript
• Tailwind CSS
• Node.js (Express.js/Fastify/Hono Framework)
• Cron Jobs
• SQL
• S3-Compatible Object Storage (AWS S3, MinIO)
• Experience in designing ci/cd pipelines
• AI

Would be a plus

• Next.js
• GraphQL
• MongoDB
• Elasticsearch
• Redis Auth0 OpenAI API
• Experience in building RAG agents

Key responsibilities

• Development and maintenance of the web application interface.
• Frontend integration with APIs.
• Performance optimization and interface responsiveness.
• Working with modern frameworks (Vue/React).
• Participation in code reviews and collaboration with the team (backend, QA).
• Integration of AI functionality for media content creation, including a user-friendly interface to manage the content creation process.
• Working with APIs of AI services for video generation and processing.

We offer

• competitive salary and bonuses
• an opportunity to work on interesting projects with a team of experts
• professional and personal growth through the company’s encouraging program
• feedbacks from supervisors and team members on a regular basis
• flexible working hours to provide you with life-work balance
• flexible vacation policy
• paid sick leaves
• English/Psychology classes

About the Project: We are building a massive, proprietary Ticketing & Event Management Ecosystem for the US market. This is NOT a standard booking site. We are engineering a custom, high-load platform from scratch. The ecosystem includes:

• Complex Web Platform: Handling Reserved Seating schemes, Camping bookings, and deep Event Management logic.
• On-Site Operations: Gate Scanning functionality and Ticket Printer control. We develop the scanning logic and integrate it with physical hardware for printing.

• Mobile Ecosystem: A feature-rich mobile application for organizers and attendees.

   

We don't use "out-of-the-box" solutions. We build our own logic to handle heavy complexity. If you prefer solving technical puzzles rather than integrating standard plugins, this is your place.

⚠️ THE CULTURE (Read this first): We are a US-based startup in an aggressive growth phase. We are looking for a Founding Engineer mindset.

• Intensity: We work with the US market. Late evening calls (European time) are standard to sync with the founders.
• Ownership: You don't just "close tickets." You own the feature from the database architecture to the UI. If the Gate System goes down on a Saturday night during a festival, you are the one helping to fix it.
• No "Code Monkeys": We discuss business goals. You need to understand why we are building a feature. If a requirement doesn't make sense technically, we expect you to push back and propose a better solution.

Tech Stack: React, Remix, Tailwind UI, Node.js, NestJS, TypeScript, PostgreSQL (TypeORM), GCP infrastructure.

Requirements:

• 4+ years of engineering experience, with deep expertise in the Node.js/React ecosystem.
• Modern Stack Mastery: You are proficient with NestJS on the backend and React/Remix + Tailwind UI on the frontend.
• Architectural Grit: Experience building custom complex systems (booking engines, CRM, logistics). You know how to design database schemas (PostgreSQL/TypeORM) that won't break under load.
• Integrations: Experience with payment processors (Stripe, etc.) and—crucially—an interest in working with hardware integrations (printers, scanners, IoT).
• US Startup Availability: You are comfortable working late hours and staying responsive during critical festival launches.
• Mobile Awareness: Knowledge of mobile development (React Native) is a plus.
• English: Upper-Intermediate or higher. You must be able to explain complex technical trade-offs to the founders.

Responsibilities:

• Engineer the Core: Design and develop the backend and frontend for the Ticketing Platform.
• Solve Hard Problems: Implement logic for Reserved Seating, interactive maps, and complex order flows.
• Hardware & Gate Logic: Write code that interacts with the physical world (scanning tickets, printing).
• Performance: Optimize the app to handle traffic spikes during ticket sales drops.
• Quality & DevOps: Write testable code, manage CI/CD pipelines, and deploy to GCP. You break it, you fix it.

We Offer:

• High Reward for High Performance: Competitive salary + Advanced Bonus System (We reward those who build the business with us).
• Real Engineering Challenge: No CMS wrappers. Pure custom development on an actual stack.
• Direct Impact: Your code runs the show at real festivals in the US.
• Medical Insurance in Ukraine and Multisport program in Poland.
• Offices in Ukraine (Kyiv, Kharkiv) and Poland (Wroclaw) or Remote.
• Paid vacation, sick leaves, and official holidays.
• Legal & Accounting services.
• The company provides all necessary equipment.
• English classes and Education reimbursement (50%).

TJHelpers is committed to developing strong engineering teams through mentorship, real project experience, and our “Helpers as a Service” model. We provide structured growth, hands-on practice, and a supportive environment where engineers can evolve quickly and meaningfully.

We are looking for a Full-Stack Developer (Node.js / TypeScript) to join our product teams and contribute to building scalable, high-performance, and reliable web applications for modern products across fintech, AI, telecom, healthcare, and other high-load domains.

Responsibilities

• Assist in implementing animations (Spine: skeletons, attachments) and interactive UI elements using Canvas/WebGL, supporting 2D/3D rendering features.
• Design, develop, and maintain scalable backend services using Node.js (TypeScript) in a high-load gambling environment.
• Build modern, responsive frontend applications using TypeScript / JavaScript.
• Collaborate closely with DevOps, QA, product managers, game providers, and designers to deliver high-quality gambling features.
• Participate in architecture discussions and contribute to engineering standards and best practices.
• Optimize applications for performance, scalability, fault tolerance, and cost efficiency.
• Investigate and resolve production issues across frontend and backend layers in real-time environments.
• Contribute to CI/CD pipelines, monitoring, logging, and observability improvements.

Requirements

• Strong experience with Node.js and TypeScript in backend development.
• Solid experience with JavaScript / TypeScript frontend development.
• Hands-on experience with HTML5 Canvas.
• Familiarity with WebGL fundamentals.
• Basic experience integrating animations (Spine or similar tools).
• Understanding of rendering performance basics (FPS, frame updates).
• Understanding of software architecture principles:
  • Microservices
  • Clean Architecture
  • Separation of concerns
  • Event-driven systems
• Familiarity with Docker, containerized environments, and CI/CD pipelines.
• Experience with Git, code reviews, unit & integration testing, and debugging.
• Understanding of high-load systems and concurrency handling.
• Ability to work independently in a fast-paced, product-driven gambling environment.

Nice to Have

• Experience in Gambling / iGaming / Betting platforms.
• Exposure to real-time systems or event-driven architectures.
• Interest in learning new technologies and improving system scalability.

TJHelpers is committed to developing strong engineering teams through mentorship, real project experience, and our “Helpers as a Service” model. We provide structured growth, hands-on practice, and a supportive environment where engineers can evolve quickly and meaningfully.

We are looking for a Full-Stack Developer (Go + JavaScript) to join our product teams and contribute to building scalable, high-performance, and reliable web applications for modern products across fintech, AI, telecom, healthcare, and other high-load domains.

Responsibilities

• Design, develop, and maintain scalable backend services using Go (Golang).
• Build modern, responsive frontend applications using JavaScript.
• Develop and maintain REST / GraphQL APIs and integrate frontend with backend services.
• Work with relational and non-relational databases, ensuring data consistency and performance.
• Implement authentication, authorization, and secure data flows.
• Collaborate closely with DevOps, QA, product managers, and designers to deliver high-quality features.
• Participate in code reviews and contribute to engineering standards and best practices.
• Optimize applications for performance, scalability, reliability, and cost efficiency.
• Investigate and resolve production issues across both frontend and backend layers.

• Contribute to CI/CD pipelines, monitoring, and observability improvements.

   

Requirements

• Strong knowledge of Go (Golang) and experience building backend services.
• Solid experience with JavaScript.
• Experience designing and consuming REST APIs (GraphQL is a plus).
• Understanding of software architecture principles: microservices, clean architecture, separation of concerns.
• Experience working with relational databases (PostgreSQL / MySQL) and ORMs or query builders.
• Familiarity with Docker, containerized environments, and CI/CD pipelines.
• Experience with Git, code reviews, testing (unit/integration), and debugging.

• Ability to work independently in a fast-paced, product-driven environment.

   

Nice to Have

• Familiarity with React is desirable.
• Experience with cloud platforms (AWS, GCP, Azure).
• Knowledge of Kafka, Redis, Elasticsearch, or other messaging/caching systems.
• Experience with Kubernetes, Helm, or Terraform.
• Understanding of frontend performance optimization and backend scalability patterns.
• Experience with monitoring and observability tools (Prometheus, Grafana, ELK).
• Familiarity with TypeScript, Next.js, or modern frontend tooling.
• Exposure to ML/AI integrations or data-intensive systems.
• Interested in learning new programming languages.

We Offer

• Real-world projects in fintech, AI, telecom, healthcare, and automation industries.
• Mentorship from senior engineers, tech leads, and architects.
• Personal development plan with a clear growth path toward Senior Full-Stack Engineer, Backend Architect, or Tech Lead roles.
• Access to internal workshops, engineering best practices, and structured feedback.
• A collaborative engineering culture focused on transparency and continuous improvement.
• Long-term projects, flexible schedule, and a remote-friendly work environment.

We're a small AI consultancy looking for a reliable contractor to handle project delivery on a per-project basis.

Our typical projects involve AI chatbots, LLM integrations, voice agents, and automation pipelines. 

Required: React/Next.js, Python (FastAPI/Flask), LLM API experience (OpenAI, Anthropic), Supabase or similar. 

Nice to have: n8n, Vapi, ElevenLabs, RAG pipelines.

What we offer

• Per-project engagement with flexible scheduling.
• Interesting, varied work across AI and automation.
• A straightforward, low-overhead collaboration with a small expert team.

Responsibilities

• Take ownership of full project delivery end-to-end.
• Build and integrate AI-powered web applications and backend services.
• Work independently with clear communication and reliable turnaround.

Languages

• English: B1 (Intermediate) or higher
• Ukrainian: Native

Akvelon is a known USA company, with offices in places like Seattle, Mexico, Ukraine, Poland, and in other European cities. Our company is an official vendor of Microsoft and Google. Our clients also include Amazon, Evernote, Intel, HP, Reddit, Pinterest, AT&T, T-Mobile, Starbucks, and LinkedIn. To work with Akvelon means to be connected with the best and brightest engineering teams from around the globe and working with an actual technology stack building Enterprise, CRM, LOB, Cloud, AI and Machine Learning, Cross-Platform, Mobile, and other types of applications customized to client’s needs and processes.

We are looking for a skilled and talented Senior/Middle Full Stack Engineer (React + Node.js) to join our project.

Requirements:

• 3+ years of software development experience with Javascript, Typescript, ES6.
• Experience with React, NextJS.
• 3+ years of software development experience with NodeJs/NestJs.
• Hands-on experience with GraphQL and PostgreSQL
• Comfort working in a highly agile, intensely iterative software development process.
• Good communication skills. Ability to discuss complex topics with technical and non-technical audiences
• At least an Upper-intermediate level of English (both written and spoken). B2 is essential.
   

Nice to have: 

• MQTT.
• Experience with React Native, and WebSockets.
• Experience working with Startups.
• Experience with Azure, IoT Hub, Microsoft Entra ID.
   

Responsibilities:

• Work cross-functionally with product, design, and other engineering counterparts to execute on product and business strategy.
• Contribute to the full development cycle: technical design, development, test, experimentation, analysis, and launch. 
• Review code and design docs, give feedback on product specs and mocks.
• Participate with a team of thoughtful, fast-moving, and motivated engineers.
• Contribute to standards that improve developer workflows, recommend best practices.
• Continuously learn and improve your technical and non-technical abilities.
   

Overlap time requirements: Overlap 8-9pm according to Kyiv time.

Working conditions and benefits:

• Paid vacation, sick leave (5 days without sickness list)
• Official holidays — 11 days considered public holidays
• Professional growth while attending challenging projects and the possibility to switch your role, master new technologies and skills with company support
• Flexible working schedule: 8 hours per day, 40 hours per week
• Personal Career Development Plan (CDP)
• Paid external training, conferences, and professional certification that meets the company’s business goals
• Internal workshops & seminars
• Corporate library (Paper/E-books).
   

Looking for an exciting career? Apply now and become part of our success story.

NeduAI is a Finnish GovTech startup at the intersection of education and public sector service delivery. We're building SmartProfile — a "neural hub" connecting skills, jobs, and education — replacing static resumes and outdated job boards with a data-driven, human-centered career ecosystem.

We partner with Finnish municipalities (Vantaa, Kotka), Unemployment Funds (A-kassa), Trade Unions, and educational institutions (XAMK, Laurea). You're joining at a critical scaling phase as we expand from Finland to a broader Nordic presence.

What you'll own:

• Lead the engineering team, set best practices, and own the technical roadmap
• Drive migration from AWS/Azure to EU-based sovereign infrastructure
• Manage PostgreSQL + Vector store architecture powering ML features and RAG capabilities
• Ensure GDPR & AI Act compliance, OAuth/MFA, data encryption
• Architect and scale RESTful APIs integrating SmartProfile with client systems
• Lead development of Assistant PRO — an AI agent for public sector administrators

What we're looking for:

• Proven experience leading technical teams
• Expert backend development (Python, Node.js, or Go) + distributed systems
• Kubernetes, containerization, production workloads (99.5%+ SLA)
• AI integrations, Vector Databases + PostgreSQL
• LLM fine-tuning, monitoring, and agentic workflow experience
• OAuth 2.0, encryption protocols, data privacy regulations
• Automated testing and monitoring/DevOps practices

Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries.

About the Product:

We power a proprietary, machine-learning-driven platform for programmatic user acquisition and retargeting in the mobile app space. The system processes tens of terabytes of raw data each day and generates millions of ad recommendations in real time. It handles millions of requests per second, delivering low-latency, high-throughput services that directly impact client growth and revenue.

Operating at this scale requires continuous innovation around distributed architecture, performance optimization, security and data protection. Our clients are major app developers seeking granular insights and measurable ROI, so robust engineering is critical to maintaining service quality and enabling rapid feature rollout under heavy load.

About the Role:

As Full Stack Team Lead, you will own the design, implementation and maintenance of our core real-time ad-serving infrastructure. You will rally a globally distributed team of four engineers behind a shared vision, drive technical direction and ensure high performance, availability and security. This role demands a hands-on leader who spends roughly half their time coding, reviewing designs and guiding end-to-end project delivery, and half their time on team management, sprint planning and stakeholder collaboration.

You will work closely with Executive, Product, Data and Design teams to define optimal solutions, integrate third-party APIs, and shape the roadmap for scalable growth. Your contributions will directly affect system reliability, client satisfaction and the company’s ability to scale into new markets.

Key Responsibilities:

• Design, implement and operate large-scale, highly available, real-time (low-latency) services using Node.js, TypeScript, React, Redis and Kubernetes on AWS.
• Lead and mentor a team of four distributed engineers; conduct code reviews, design reviews and knowledge-sharing sessions.
• Collaborate with executives, product managers, data scientists and designers to translate requirements into technical solutions.
• Design, develop and integrate RESTful APIs and third-party services.
• Plan, groom and manage agile sprint cycles; track progress and adjust priorities to meet delivery goals.
• Define and enforce security best practices and data protection policies across services.
• Oversee on-call rotation and incident response; maintain low alert rates and rapid recovery processes.
• Manage team operations including onboarding, offboarding, performance reviews and hiring support.

Required Competence and Skills:

• 6+ years of professional experience in backend (Node.js preferred) and frontend development (React, Vue or Angular).
• 2+ years in a people-management or team-lead role, with direct experience conducting one-on-ones and performance reviews.
• Proficiency with SQL and NoSQL databases in production environments.
• Experience deploying and operating services on a major cloud platform (AWS, Google Cloud or Azure).
• Deep understanding of the software development lifecycle and agile methodologies.
• Strong problem-solving skills, self-sufficiency and a proactive “can-do” attitude.
• Fluent English communication skills, both written and verbal.

Nice to Have:

• Experience coordinating with offshore development teams.
• Background in web-based SaaS platforms.
• Exposure to large-scale data processing or Big Data technologies.
• Hands-on familiarity with Kubernetes at production scale.

Why Us:

We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

We provide full accounting and legal support in all countries we operate.

We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

We offer a highly competitive package with yearly performance and compensation reviews.

About the Project

We are a product-driven company building a live commercial product with real users in a high-load environment.
The platform is actively growing — new features, scaling challenges, and architectural evolution.

We are looking for a Senior Python Full-Stack Engineer with strong backend and system design expertise who can take ownership of complex technical decisions and contribute to architectural evolution.

Responsibilities

• Design and implement scalable backend services
• Participate in architectural decisions
• Improve system performance and scalability
• Optimize database queries and indexing strategies
• Ensure data consistency across services
• Contribute to distributed system design decisions
• Review code and mentor engineers

• Work closely with product and engineering teams

   

Must-Have Requirements

• 6+ years of commercial software development
• Strong Python expertise (production-level experience)
• Deep experience with Django / FastAPI / Flask
• Strong knowledge of relational databases (PostgreSQL preferred)
• Experience designing scalable REST APIs
• Solid understanding of:
  • Database indexing strategies (B-tree, Hash, Composite)
  • Query optimization & profiling (EXPLAIN, performance tuning)
  • Transactions & data consistency
• Experience with microservices architecture
• Understanding of distributed systems concepts:
  • Data consistency
  • Event-driven communication
  • Replication strategies
• Experience with background processing (Celery, async workers)
• Docker & Git

• Production-level experience with cloud platforms (AWS preferred)

   

Strong Plus

• Experience with:

  • Distributed transactions (Saga pattern, eventual consistency)
  • Message brokers (Kafka / SQS / SNS / RabbitMQ)
  • High-load systems
  • Database scaling (replication, sharding, read replicas)
  • Observability tools (Datadog, Prometheus, Grafana)
  • CI/CD pipelines

  Frontend

• Experience with React (Next.js is a plus)
• Understanding of frontend-backend integration
• Ability to contribute to frontend architecture when needed
   

What We Offer

• Competitive compensation
• Fully remote
• Working hours: Mon–Fri 16:00–00:00 (UTC+X)
• Direct impact on architecture and product decisions
• Long-term collaboration