Jobs Fullstack

Job Summary
As a Software Engineer, you will work directly with AI coding models to evaluate their performance, identify weaknesses, debug incorrect outputs, and create stronger alternative solutions. This role is ideal for developers who enjoy problem-solving, code analysis, and improving how AI understands and generates technical answers.

Key Responsibilities

• Work with Frontier Labs, producing training data to train Al models. 
• Test and evaluate agentic coding models designed to perform complex engineering tasks at a senior developer level.
• Focus on creative problem-finding rather than traditional feature shipping. 
• Ideal candidates use AI, enjoy problem-solving, and like "outsmarting" Al systems. 

Requirements

• 3–4 years of hands-on experience as a Full Stack Developer on commercial projects, including B2B SaaS systems and data-heavy applications.
• Use AI tools (AI agents, Claude Code, Cursor, Codex or similar) in daily workflow.  
• Strong judgment across the full software lifecycle:
  • Reading a PRD and breaking it into Jira tickets
  • Estimating effort and scoping work
  • Architecture and design choices
  • Reviewing PRs
  • Debugging and recovering when blocked
• Strong proficiency with React.js and Node.js, with experience using Express.js or NestJS to build scalable backend systems that support complex business logic.
• Experience designing and integrating REST APIs. 

• Upper-Intermediate English (B2). 

   

Bonus:

• Computer Science or related education. 
• Python programming experience. 
• Strong understanding of algorithms and data structures. 

You will be part of building better AI systems by helping improve the quality, accuracy, and reliability of the answers they provide. If you want to use your engineering skills in a fast-growing AI field, this role is a strong opportunity to contribute to the future of AI-assisted development.

Genius Match is building Geni, an AI-powered talent screening and assessment platform designed to eliminate the candidate black hole. Geni uses large language model technology to generate role-specific assessments, evaluate candidates in real time, and deliver instant Skill Insights feedback to both candidates and hiring organizations - replacing the traditional resume black hole with a fast, transparent, and data-driven experience.

We are a small, shipping-focused team. You will own features end-to-end, collaborate asynchronously, and have direct impact on a platform that coming to market now. This role is about elevating the product to scale across multiple industry verticals including technology, healthcare, skilled trades, and seasonal workforce.
 

We are looking for a builder: someone who writes clean, working code, thinks in products, and knows how to ship. You are comfortable working across the full stack, from database schema to UI interaction, and you use AI-assisted development tools as a natural part of your workflow. You do not need to be supervised to figure out what to do next.

This is not a role for someone who needs a finished spec to start. You will be handed context and outcomes, and expected to drive the implementation.
 

What You Will Do

• Build and ship full stack features across the Geni assessment platform
• Own backend API development using Bun, Elysia, and Drizzle ORM on PostgreSQL
• Build React 19 / Vite 6 frontend components and candidate-facing UX
• Implement and extend real-time voice and text assessment flows using Deepgram (STT/diarization) and Cartesia (TTS)
• Integrate with ATS platforms, starting with Bullhorn, and extend the integration layer
• Write and maintain unit, integration, and end-to-end tests (188-test baseline and growing)
• Collaborate with a small team of experienced product professionals
• Use Cursor, Claude, and other AI development tools to accelerate your own output
• Work directly in Linear to pick up, scope, and close issues
• Produce lightweight, practical technical documentation: architecture notes, API reference, deployment guides, and key decision records

What We Are Looking For

Technical Depth

• Strong TypeScript across both frontend and backend
• Experience with modern React (hooks, concurrent features, state management)
• Backend experience with Bun or Node.js-equivalent runtimes and REST or WebSocket APIs
• Comfort with relational databases, schema design, and query optimization using ORMs
• Familiarity with real-time audio or streaming protocols is a plus (WebSockets, WebRTC)
• Exposure to LLM APIs, the Vercel AI SDK, or Anthropic SDK is a plus

Builder Mentality

• You have shipped products, not just maintained them
• You scope problems quickly, cut what does not matter, and move toward working software
• You write code that other people can read and extend
• You are comfortable with ambiguity and know how to ask the right question when you need to

AI-Augmented Development

• You use Cursor or a comparable AI-native IDE as your primary coding environment
• You know how to write effective prompts and system context for Cursor and Claude
• You understand the difference between AI-generated output that needs validation and output that can go straight to review
• You use AI tools to move faster, not to avoid understanding the code

NICE TO HAVE

• Experience with voice pipelines, diarization, or STT/TTS integrations
• Familiarity with ATS platforms such as Bullhorn, Greenhouse, or Lever
• Exposure to HR tech, workforce development, or B2B SaaS hiring tools
• Knowledge of NYC Local Law 144 or EEOC compliance considerations for automated hiring tools
• Experience building multi-tenant or invitation-based access flows
• Prior work in early-stage startups or as an independent contributor on a small product team

About us

We are International Showtimes; a global entertainment data aggregator from Berlin, Germany. We operate in 120 + markets worldwide and serve clients across the globe. Our automated algorithm connects to 25k+ entertainment websites, to aggregate rich and high-quality data. The International Showtimes team consists of 21+ smart, motivated, and friendly people. We work remotely with team members across the globe. Now we are looking for you to support us with our next growth phase in 2024.

Your Profile

• You love movies, entertainment, tech and data 
• You are open-minded, and you enjoy working with people 
• You value structure and professionalism 
• You are hands-on and proactive
• You look for a long-term commitment

You're offering these qualifications:

• You have at least 1-2 years of experience with TypeScript.
• You have strong and proven experience in web scraping including advanced techniques for bypassing CAPTCHA, Cloudflare, Akamai, and other sophisticated security measures.
• You are familiar with some of the following technologies and libraries: regular expressions, CSS, HTML, jQuery, cheerio.js, JSON parsing/format, moment.js, Node.js, and underscore.
• You understand the concepts of working with Promises, async/await, callbacks and in general with asynchronous programming.
• You are familiar with working with Postgres, MongoDB and Redis.
• You know how to work with git.
• You have a good command of English.
• You are friendly and open-minded.
• You are not fearing problems, you rather like to solve them with your unique approach.
• You are professional and reliable.

What we offer:

• A job position with a top-level monthly salary 
• Working within a friendly international team of smart, open-minded and supportive people
• A vibrant start-up culture that provides structure and clear goals 
• A great opportunity to co-create and to leverage your skills and creativity 
• Flexible working hours based on your demands 
• Opportunities to build relations, both in Germany and across Europe
• A great opportunity to develop your professional and personal skills 
• Regular feedback sessions to strengthen our alignment 

About us

We are International Showtimes; a global entertainment data aggregator from Berlin, Germany. We operate in 114+ markets worldwide and serve clients across the globe. Our automated algorithm connects to 25k+ entertainment websites to aggregate rich and high-quality data. The International Showtimes team consists of 21+ smart, motivated, and friendly people. We work remotely with team members across the globe. Now we are looking for you to support us in pushing our data solutions, such as API and dashboard solutions to the wider entertainment industry 


 

Your Profile

• You love movies, entertainment, tech and data 
• You are open-minded, and you enjoy working with people 
• You value structure and professionalism 
• You are hands-on and proactive
• You look for a long-term commitment

You're offering these qualifications:

Required Skills

• Strong TypeScript skills.
• Experience bypassing website protective measures (e.g., CAPTCHAs, IP bans).
• Ability to bypass Puppeteer detection.
• Experience handling dynamic content using headless browsers.
• Knowledge of unit testing and end-to-end (e2e) testing.
• Ability to write clean, maintainable code and improve overall code quality.
• Strong collaboration and communication skills within a development team.

Preferred Qualifications

• Image parsing skills (e.g., parsing seating grids from images).
• Experience handling large-scale data extraction and processing.
• Familiarity with CI/CD pipelines.
• Experience monitoring website structure changes and building alerting features.
• Ability to document processes and provide training to new team members.
• Track record of suggesting and implementing improvements in crawling frameworks.

What we offer:

• A job position with a top-level monthly salary 
• Working within a friendly international team of smart, open-minded and supportive people
• A vibrant start-up culture that provides structure and clear goals 
• A great opportunity to co-create and to leverage your skills and creativity 
• Flexible working hours based on your demand 
• Opportunities to build relations, both in Germany and across the globe
• A great opportunity to develop your professional and personal skills 
• Regular feedback sessions to strengthen our alignment 

• Please note that this position is open only to candidates currently located in Ukraine
• Project Description:
  Applying to the position, you may join one of the most respected and fastest growing institutional investors in the world. Our client is a professional investment management organization that globally invests the funds to ensure long-term sustainability. The company invests in all major asset classes, including public equity, private equity, real estate, infrastructure and fixed-income instruments, and currently has offices in Toronto, London, Hong Kong, New York, São Paulo, Luxembourg and Mumbai.
  Client attracts and selects high-caliber individuals from top-tier institutions around the globe. Join our team and look forward to:
  • Diverse and inspiring colleagues and approachable leaders
  • Stimulating work in a fast-paced, intellectually challenging environment
  • Accelerated exposure and responsibility
  • Global career development opportunities
  • Being motivated every day by important social purpose and unshakable principles
  • A deeply rooted culture of Integrity, Partnership and High Performance
  If you share a passion for performance, value a collegial and collaborative culture, and approach everything with the highest integrity, here's an opportunity.
• Responsibilities:
  • Manage timelines/deliverables within the team towards the successful delivery of projects.
  • Design software solutions by interacting with portfolio managers, traders, operations staff and peers to understand requirements.
  • Develop solutions that are in line with client's technology biases, deliver efficiency and scalability, and enable new trading activities.
  • Provide knowledge transfer to team members and support staff through application demos, walkthroughs, and documentation.
• Mandatory Skills Description:
  • Experience in Python in an enterprise environment, covering the whole development life cycle
  Airflow, 
  SQL, 
  Terraform, 
  AWS (S3, Athena, EKS, EC2, Redshift, CloudWatch, Step Functions)
  React
  Node.js
  • Proficiency in CI/CD pipelines
  • Unit and integration testing
• Nice-to-Have Skills Description:
  • Capital market experience
  • Experience with BI tools, preferably QuickSight.
  • Experience with terraform for Infrastructure as code and cloud provisioning.
  • Experience with Jupyter notebooks for data analysis and reporting.
• Languages:
  • English: B2

Our Customer:
A fast-growing product startup in the Video AI domain, collaborating with global publishers and broadcasters to enhance video content experiences at scale.

Your tasks:

• Own the full development lifecycle — from requirements analysis and system design to implementation, testing, and production deployment.
• Design, build, and scale backend services, primarily using Ruby on Rails and Python.
• Develop and optimize frontend solutions using Vanilla JavaScript (ES6), CSS, and modern frameworks such as React and Vue.
• Ensure high performance of user interfaces, focusing on Core Web Vitals and overall responsiveness.
• Work with a high-scale, distributed tech stack including PostgreSQL, Kafka, Spark, Redis, Elasticsearch, InfluxDB, Celery, and Iceberg.
• Deploy, maintain, and scale applications in cloud environments, leveraging infrastructure tools like Terraform and Nomad.

Required experience and skills:

• Bachelor’s degree in Computer Science (or equivalent experience).
• 8+ years of experience in software development with strong backend expertise (proficiency in Ruby on Rails, Python, Java for building scalable backend systems).
• 4+ years of experience in frontend development using Vanilla JavaScript (ES6), HTML, CSS.
• 2+ years of experience with modern frameworks (React or Vue).
• Strong understanding of performance optimization principles, including Core Web Vitals.
• Hands-on experience designing and building high-load, distributed systems.
• Experience working with modern data and messaging technologies (Kafka, Redis, Elasticsearch etc.).
• Hands-on experience with cloud platforms (AWS or GCP) and infrastructure-as-code tools.
• Practical experience using AI-powered development tools (such as Claude, Cursor, Anti-Gravity) to improve development efficiency and code quality.
• Fluent English (Upper-Intermediate or higher) and effective communication skills.

Would be a plus:

• Experience with monetization platforms.
• Background in Big Data technologies and data-intensive systems.
• Experience in Video AI or video processing domains.

Working conditions:

• 5-day working week, 8-hour working day;
• Remote work.

We’re building a cross-browser Fingerprint SDK and a high-performance backend for fraud detection and risk analysis. We’re looking for a Software Engineer who enjoys working close to the browser, handling large-scale data, and solving non-trivial engineering problems.

What You’ll Work On

• Design, develop and maintain a cross-browser Fingerprint SDK using Vanilla JavaScript/TypeScript, focused on performance, accuracy, and resilience against ad blockers and privacy restrictions
• Build backend services with Node.js (Express) to process and analyze large volumes of collected data
• Work with ClickHouse for analytical workloads and MySQL for transactional data
• Design and optimize raw SQL queries for high-performance data access

• Contribute to fraud detection and risk analysis systems by identifying patterns and anomalies in data

   

What We’re Looking For

• 7+ years of experience with JavaScript/TypeScript and raw Node.js (Express)
• Strong experience with JavaScript in the browser
• Experience writing and optimizing raw SQL queries
• Familiarity with high-volume data processing or analytics systems

• Bonus: experience with fingerprinting, anti-fraud systems, or cybersecurity

   

Nice to Have

• Experience dealing with ad blockers, tracking prevention (Safari/Firefox), or similar constraints
• Background in security, fraud detection, or risk analysis

What We Offer

• A collaborative and dynamic work environment with minimal bureaucracy, allowing for quick decision-making and efficient workflows.
• Opportunities for professional growth and development.
• The chance to work on cutting-edge technologies and challenging projects.
• Competitive salary and benefits package.
• Flexibility in work hours and location.

Role in one line

Own the user-facing applications and the web / API layer of the agentic platform — the chat shell, the per-agent UIs, and the glue that connects them to the agent runtime — shipping production-quality interfaces at high velocity.

Context

We are building a multi-agent AI platform for a regulated banking client: a shared “spine” (chat shell, API gateway, agent runtime, tool layer) with several agents running on top — KYC assistant, document generator, meeting analysis, search, and office / e-mail productivity. The full-stack engineer owns the experience layer end to end.

What you will work on

• Customise and extend LibreChat (React / TypeScript) — branding, auth integration, and new agent-specific UI surfaces.
• Build polished, usable internal tools: slot-filling document-generation flows, KYC review / approval screens with human-in-the-loop gates, and meeting-analysis Q&A and task views.
• Implement streaming LLM output in the UI (SSE / websockets), draft → preview → correct → download flows, and stateful multi-step interactions.
• Wire the frontend to backend services — FastAPI (Python) agent endpoints and the Laravel gateway — including SSO via Azure AD / Entra ID (OpenID Connect).
• Move fast with AI-assisted development while keeping the codebase reviewable, typed, and maintainable for a regulated client.

Must-have

• Strong React + TypeScript: component architecture, state management, responsive and accessible UI.
• Real product / UX sensibility — you build internal tools people actually want to use, not just functional ones.
• Vibecoding fluency: highly productive with AI coding assistants (Claude Code, Cursor, Copilot) — able to scaffold, iterate, and ship quickly without losing control of code quality.
• Solid backend competence: consuming and integrating REST / streaming APIs, auth flows (OIDC / SSO), and comfort reading and extending Python and / or PHP services.
• Engineering hygiene: Git, CI/CD, and containerised local development (Docker).
• Codebase agility: comfortable working inside a large existing open-source codebase and bending it to requirements.
•  

Nice-to-have

• Prior LibreChat or chat-UI customisation experience.
• SSO integration experience with Azure AD / Entra ID (OpenID Connect).
• Hands-on Python (FastAPI) and / or PHP (Laravel), not just integration.
• Experience building UIs for LLM / agent products (streaming, tool-call surfacing, citations).
• Prior work in regulated, enterprise, or security-sensitive environments.

Tech stack you will touch

React, TypeScript, Tailwind / CSS, Node tooling, LibreChat · FastAPI (Python) and Laravel (PHP) services · Azure Entra ID / OpenID Connect SSO · Docker, Git, CI/CD · streaming (SSE / websockets).

Ways of working

• Remote, distributed delivery team; English working language; scrum-light cadence.
• Banking-grade rigor: every action auditable, human-in-the-loop by design, compliance considerations built into the architecture — not bolted on.
• Vibecoding is for velocity, not for shipping unreviewed code: AI-assisted, human-owned, review-clean.

Important

As this is a Germany-based project, we are primarily seeking candidates based in Western Ukraine, with Vinnytsia and Lviv being our preferred locations. 

We're looking for a Full-Stack Developer (React/Node.js) to join a long-term product engagement in the AI space. 

You'll design and implement agent-based systems that interact with Jira, Microsoft Teams, internal knowledge bases, and cloud infrastructure. You'll work closely with the AI Engineers and client to directly shape the core product roadmap. 

Responsibilities:

• Develop and maintain full-stack features across Node.js backend and React frontend 
• Build and evolve AI agent-based workflows integrated with third-party tools (Jira, MS Teams, knowledge bases) 
• Collaborate directly with the client and engineering team on architecture decisions and product direction 
• Contribute to a codebase where AI isn't an afterthought — it's the core 

Requirements:

• 3+ years of commercial experience with Node.js and React 
• Solid understanding of MongoDB and document-based data modeling 
• Solid experience with AI-assisted development tools — Claude Code, Cursor, or similar 
• Experience building or integrating AI/LLM-powered features 
• Familiarity with Jira, MS Teams integrations, or enterprise APIs 
• At least Upper-Intermediate English and ability to collaborate with US-based team 

Nice to Have: 

• Experience with LangChain, LangSmith, or LangGraph 
• Hands-on experience with Google Cloud Platform (GCP) 

We Offer:  

• Innovation Culture: Work in a team that actively experiments with AI and modern development approaches 
• Real Product Impact: Direct collaboration with a client and influence on product decisions    
• Flexible Work: Remote work or a modern office in Kyiv   
• Generous Time Off: 20 paid vacation days + 15 sick leave days annually   
• Professional Growth: Compensation for courses, certifications, and learning resources   
• Cutting-Edge Tools: Access to premium AI tools (Cursor Pro, Сlaude Code, GitHub Copilot, etc.)  

Recruitment Process:  

1. HR Interview  
2. Final Interview   
3. Job Offer 

If you have any questions or need clarifications, feel free to reach out to our Talent Hunter Team by email.

Mirko Solutions is an international IT company specializing in web and mobile development for clients in the US, Canada, EU, and Australia. We deliver high-quality digital solutions including web applications, mobile apps, cloud systems, and custom software for businesses worldwide.

Due to the rapid growth of our company, we are currently looking for an experienced Senior Fullstack developer (Python + React) to join our team and work on a new international project.

Responsibilities:

• Develop and maintain scalable backend and frontend functionality
• Build and improve integrations with marketplaces and third-party platforms
• Participate in API architecture improvements and service splitting
• Work with complex business logic 
• Investigate and fix production and integration-related issues
• Collaborate with QA, Team Leads, and other developers during feature delivery

Requirements:

• 5+ years of experience with Python and JavaScript
• Strong backend development and software architecture skills
• Experience delivering and deploying production-level projects
• Proficiency with Async IO
• Experience with React, Redux (RTK), CSS modules
• Experience with CI/CD, Cloud platforms (AWS, GCP, or Azure), Linux, Docker, Kubernetes
• Experience integrating third-party APIs

• Experience with Data Pipelines / ETL

   

We offer:

• Fully remote work
• Opportunity to work on an international project
• Professional growth and development
• Friendly and supportive team environment

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.

B2B with a USA company; Full-time, long-term cooperation, 3 steps to the job offer.
 

About the Role
 

The company is looking for a passionate and hands-on Full Stack Engineer to join a fast-moving product team building technology that makes a real-world impact. This role is ideal for someone who loves creating exceptional mobile experiences, enjoys solving complex technical challenges, and thrives in an environment where innovation, ownership, and speed matter.

You will work closely with Product, Design, Data Science, and Engineering teams to build scalable, high-quality applications used by people globally. The role is heavily frontend-focused (around 80%), with opportunities to contribute to backend services, architecture decisions, and AI-driven engineering workflows.

You will be part of a highly collaborative engineering culture where AI tools and intelligent automation are integrated into the development process to accelerate delivery, improve code quality, and enhance productivity.

 

What You’ll Do
 

• Build and maintain modern mobile and web applications using React Native, ReactJS, and TypeScript
• Take ownership of features from concept to production
• Design scalable frontend architecture and reusable components
• Collaborate with Product Managers, Designers, Data Scientists, and Engineers throughout the entire product lifecycle
• Integrate data-driven and AI-powered solutions into user-facing products
• Contribute to backend services and APIs where needed
• Work with modern technologies and cloud infrastructure in a microservices environment
• Use AI tools and AI-assisted workflows to plan, write, test, and optimize code
• Experiment with AI agents and automation to improve development efficiency
• Participate in technical discussions, architecture planning, and product innovation
• Help shape engineering best practices and influence the future technology stack
  
   

Tech Stack

React Native, ReactJS, TypeScript, Redux, Scala, Python, AWS, Docker, Kubernetes, MongoDB, Postgres, Redis, Kafka, Elasticsearch, Spark, Microservices, and more.

 

What the Company Is Looking For
 

• 5+ years of experience (as a Full Stack or Frontend Engineer)
• Strong hands-on experience with JavaScript, TypeScript, React Native, and ReactJS
• Experience building and shipping mobile applications
• Solid understanding of frontend architecture and scalable UI development
• Experience with MongoDB and modern backend APIs
• Familiarity with cloud environments and containerized deployments (AWS, Docker, Kubernetes)
• Experience using AI development tools such as Copilot, Claude, Cursor, or AI agents in day-to-day engineering workflows
• Ability to evaluate, improve, and validate AI-generated code
• Strong ownership mentality and accountability
• Curious mindset with a passion for technology and continuous learning
• Excellent communication skills in English
  
   

Nice to Have
 

• Backend experience with Python and/or Scala
• Experience with system design and distributed architectures
• Experience working in data-driven or AI-powered product environments
• Exposure to microservices and event-driven systems
  
   

Why Join?
 

• Build products with meaningful real-world impact
• Work with a modern, AI-augmented engineering culture
• Collaborate with highly experienced product and engineering teams
• Influence technical decisions and product direction
• Solve challenging problems at scale
• Join a team that values ownership, curiosity, innovation, and continuous growth
  
   

Ready to Build Something Meaningful?
 

If you are excited about creating impactful products, working with cutting-edge technologies, and pushing the boundaries of AI-assisted software development, this could be the perfect opportunity for you.

The company is looking for engineers who are curious, proactive, and motivated to make a real difference through technology.
 

Apply now and become part of a team where your ideas, code, and contributions truly matter.

We're looking for a Middle Full-Stack Developer to build and ship features across the stack — React on the frontend, Java on the backend, and AI integrations in between. You'll work on real products and have a say in how they evolve.

What You'll Do

• Build and maintain full-stack features for the products end to end – from the React UI through to the Java backend and database.
• Design and implement clean, well-documented REST APIs.
• Run AI LLMs integrations. 
• Write maintainable, testable code and cover it with unit and integration tests.
• Take part in code reviews, both giving and receiving constructive feedback.
• Collaborate closely with product managers, designers, and QA in an Agile team.
• Investigate and resolve bugs, and help improve performance and reliability.
• Contribute to technical decisions.

What We're Looking For

• 2–3 years of proven commercial full-stack development experience.
• Backend: Strong Java Core; hands-on experience with Spring Boot (Spring MVC, Spring Data JPA, Hibernate), Spring Security, Spring AOP. Familiarity with MapStruct for entity-to-DTO mapping and Lombok.
• Frontend: Solid React experience with JavaScript and TypeScript; confident with HTML and CSS / SCSS. Comfortable with the modern React ecosystem — client state (Zustand), server state / data fetching (TanStack Query), routing (React Router), and a modern build tool (Vite).
• APIs: Practical experience designing and consuming RESTful services.
  Contract-first / OpenAPI: Experience with a contract-first workflow — OpenAPI 3 with code generation (openapi-generator) — is a strong plus.
• Databases: Good SQL skills with a relational database (PostgreSQL). Experience with schema migrations (Flyway).
• Auth & Security: Understanding of OAuth2 / JWT-based authentication and role-based access control; experience integrating an identity provider such as Keycloak is a plus.
• Infra & DevOps: Comfortable with Docker and Docker Compose; exposure to AWS (EC2, RDS, CloudWatch) and structured (JSON) logging is a plus.
• Tooling: Comfortable with Git and a standard branching workflow; familiarity with Gradle.
• Testing: Experience writing unit and integration tests (e.g. JUnit, Testcontainers on the backend; Playwright for end-to-end on the frontend).
• AI: Interest in, or hands-on experience with, integrating AI / LLMs into product features.
• Solid understanding of OOP, web fundamentals, and clean-code principles.
• English at Upper-Intermediate (B2) level — able to communicate in writing and on calls.

Requirements:

• Strong production experience with Vue.js
• Solid Python experience for backend development
• Proficiency with JavaScript / TypeScript for frontend development
• Hands-on experience with Three.js and Canvas-based rendering
• Demonstrable frontend performance optimization experience (page load time, rendering efficiency, working with large or real-time data sets)
• Ability to work highly autonomously, proactively clarify requirements and drive work forward with minimal supervision
• Strong communication skills and experience working in distributed teams (Europe/Ukraine time zone; ~1–2 hours of daily overlap with a US-based team)
• Hands-on experience with AI-assisted development tools — e.g. Claude Code and Codex — including AI skills, plugins, and MCP (Model Context Protocol), with a clear understanding of how to boost personal productivity and code quality using AI tooling

Nice-to-Have:

• React experience — a planned Vue → React migration is in scope for the team, so familiarity with both frameworks is a strong plus
• Hands-on experience migrating a frontend from Vue to React
• Experience rendering large, real-time data streams in the browser
• Familiarity with deck.gl and Leaflet
• WebGL experience beyond Three.js abstractions
• Familiarity with C++ or general backend development

Key Responsibilities:

• Build and maintain features across a portfolio of Vue-based projects
• Develop and support Python backend services
• Optimize frontend performance — faster page loads and more efficient rendering of heavy real-time 3D scenes and data
• Build and maintain visualization UI components that render synchronized 3D, lidar, and media data
• Contribute to the planned Vue → React migration as it ramps up
• Take ownership of features end-to-end, proactively clarifying requirements and assumptions
• Collaborate with a primarily US-based team with ~1–2 hours of daily overlap, while working largely independently
• Participate in code reviews and design discussions

About the Project:

You'll join the engineering team of a leading technology company building autonomous mobility and robotics systems. The team develops an internal data visualization platform — essentially a "video and data player" that renders a 3D scene, a lidar feed, and an audio feed in sync, used to inspect and debug the data recorded by autonomous vehicles.

The work centers on a set of Vue-based projects, including the platform itself and supporting Python backend services, with a Vue → React migration on the roadmap as the broader engineering organization standardizes on React. This is a long-term engagement for an engineer who is comfortable across the stack, cares about clean and performant code, and can drive features from design to production with high ownership and minimal supervision.

Why join us

If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you! :)

About the role

We are looking for a Middle/Senior Full Stack Engineer to build robust server-side solutions for a SaaS platform operating at scale, working across Java, React, SQL, Redis, and Elasticsearch. You will contribute to architecture decisions, design reusable client integration systems following secure cloud best practices, and participate in code reviews and CI/CD processes as a trusted technical resource for the team. The role offers significant ownership from day one in a product built from the ground up.

What you will do

• Build a cleanly designed, reusable client integration system adhering to secure cloud software best practices from start to finish;
• Collaborate with design and product teams to understand requirements, create estimates, plan sprints, and meet delivery timelines;
• Plan and accurately estimate construction and delivery timelines;
• Contribute to technical documentation and automated build and deployment processes designed to increase engineer efficiency;
• Review code submitted by other software engineers and submit your own code for review as part of the pull-request deployment process.

Must haves

• 4+ years’ experience of SaaS experience;
• High level of proficiency in Java, React, and SQL;
• Knowledge of or prior experience with microservices architecture;
• Front end experience with JavaScript, Typescript, and ReactJS;
• DevOps mindset of automation and continuous improvement;
• Good understanding of observability and familiarity with strong CI/CD practices;
• A proven ability to meet deadlines, motivate others, and consistently produce high quality, impactful results;
• Ability to maintain at least 6 hours of overlap with EST working hours;
• Upper-intermediate and higher English proficiency.

Nice to haves

• Experience building software in the cloud with AWS preferred.

The benefits of joining us

• Professional growth

Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps

• Competitive compensation

We match your ever-growing skills, talent, and contributions with competitive USD-based compensation and budgets for education, fitness, and team activities

• A selection of exciting projects

Join projects with modern solutions development and top-tier clients that include Fortune 500 enterprises and leading product brands

• Flextime

Tailor your schedule for an optimal work-life balance, by having the options of working from home and going to the office – whatever makes you the happiest and most productive.

Meet Our Recruitment Process

Asynchronous stage – An automated, self-paced track that helps us move faster and give you quicker feedback:

• Short online form to confirm basic requirements
• 30–60 minute skills assessment via Codility – a platform founded in Poland that helps us provide quicker feedback and streamline this stage of the process.
• 5-minute introduction video

Synchronous stage – Live interviews

• Technical interview with our engineering team (scheduled at your convenience)
• Final interview with your future teammates

If it’s a match — you’ll get an offer!