Jobs
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· 128 views · 17 applications · 26d
Lead Backend Engineer
Full Remote · Worldwide · Product · 6 years of experience · Upper-IntermediateAbout the Role: We are looking for a skilled and proactive Lead Backend Engineer to take technical ownership of our backend systems. You will lead the development of a new gaming platform from scratch, define architecture and best practices, mentor the...About the Role:
We are looking for a skilled and proactive Lead Backend Engineer to take technical ownership of our backend systems. You will lead the development of a new gaming platform from scratch, define architecture and best practices, mentor the backend team, and ensure a smooth migration from a legacy system to a scalable microservices-based infrastructure. This role involves close collaboration with DevOps, security, and product teams, as well as integration with third-party services and payment providers.Responsibilities:
- Lead and mentor a team of backend engineers, fostering best practices in code quality, testing, and deployment
- Design and develop a new gaming platform architecture based on NodeJS and microservices
- Oversee the gradual migration of legacy platform components to the new infrastructure
- Collaborate with DevOps on CI/CD automation, system monitoring, and observability
- Ensure system scalability, security, and high availability in collaboration with DevOps and security teams
- Integrate third-party APIs and payment solutions, manage technical risks and edge cases
- Participate in technical planning, code reviews, and decision-making processes
Your Background:
- 5+ years of backend software development experience, including 1–2 years in a lead or senior role
- Strong knowledge of JavaScript/TypeScript and NodeJS
- Solid commercial experience with NestJS framework
- Hands-on experience in launching products from the ground up, including CI/CD pipeline setup
- Proficient in writing unit and E2E tests using Jest/Mocha/Nock
- Deep understanding of SQL/NoSQL databases and data migration strategies
- Experience with message brokers such as RabbitMQ or Apache Kafka
- Familiarity with Docker and Kubernetes
- Excellent communication skills and ability to work cross-functionally
- Experience integrating and maintaining 3rd-party APIs with strong risk management awareness
- B2+ English proficiency (verbal and written)
Nice to Have:
- Experience with front-end integration or hands-on frontend development
- Background in PHP development
- Familiarity with cloud services (AWS, GCP, Azure)
- Understanding of OWASP Top 10 and secure coding practices
- Experience with WebSockets
- Experience with payment system integrations
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· 54 views · 1 application · 12d
Senior Node.js developer (with relocation to Warsaw) to $9000
Office Work · Poland · Product · 5 years of experience · Upper-IntermediateThe international software development and digital solutions company driven by 1,300 talented professionalsl. Here, everything moves at rocket speed: driving innovation, pioneering projects, and fast-tracking careers. Together, we turn ideas into...The international software development and digital solutions company driven by 1,300 talented professionalsl.
Here, everything moves at rocket speed: driving innovation, pioneering projects, and fast-tracking careers.
Together, we turn ideas into action—let’s get started!We are looking for a skilled Senior Node.js Developer
Requirements:
- Strong knowledge of JavaScript and the ECMAScript 6 standards
- 3+ years of commercial experience with Node.js and Nest.js
- 5+ years of commercial experience in web development
- Commercial experience of working with high loaded SQL or NO SQL databases
- Commercial experience of implementing the REST, GraphQL and WebSockets
- Understanding of the TDD principles and experience of writing tests
- Understanding of microservice architecture principles
- Experience of GIT version control system
- Experience with RabbitMQ
- Experience with Redis
- Experience with databases MongoDB, MySQL
- At least Intermediate lvl of English
Will be a plus:
- 2+ years of hands-on experience developing over CI/CD/Micro Services architecture/Containers
- Experience with Kubernetes
- Experience with Nats
- Experience with TypeScriptDuties and opportunities:
- In-house platform development
- 3rd party API integrations
- Actively participate in developing new features from scratchWe offer excellent benefits, including but not limited to:
- Snacks in the Office
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- Attractive office location and facilities
- Medical insurance
- Breakfasts and lunches in the office (partially paid by the Company)
- Languages classes (partially paid by the Company)
- Social Club of the Company -
· 100 views · 20 applications · 14d
Principal Node.js Developer
EU · Product · 6 years of experience · Upper-IntermediateAt Enjoy Gaming, we’re a passionate team of industry experts, backed by market specialists and foreign investment. We’re thrilled to create live dealer shows and slots. We’re making our games to provide an even better gaming experience. Our core values of...At Enjoy Gaming, we’re a passionate team of industry experts, backed by market specialists and foreign investment. We’re thrilled to create live dealer shows and slots. We’re making our games to provide an even better gaming experience.
Our core values of ownership, communication, and honesty drive everything we do.Join us and be part of our innovative journey in the gaming world!
We are currently seeking a Team Lead Node.js Developer. You will collaborate closely with Product Owner, and other developers to transform complex requirements. You will also have the opportunity to mentor and lead developers and contribute to the architectural decisions that shape our projects.
About you:
— 1+ year of Leading experience
— 6+ years experience with backend in NodeJS/Express
— Strong Knowledge of Nest JS / Typescript
— Strong Knowledge of SQL and NoSQL
— Experience WebSockets and REST API
— Experience using messaging and task-processing frameworks (e.g., BullMQ, RabbitMQ, etc.)— Experience with СlickHouse
— Understanding of security, vulnerabilities, and approaches to avoid them
— English level Upper intermediate or higherWill be a plus:
— Experience in optimizing the performance of highly loaded systems
— Experience in iGaming/gambling will be a big plus
— Good understanding of GCP
— Experience with JavaScript, React.js
— Working principles with Docker/Docker compose
Responsibilities:
— Splitting and assigning tasks to the developers
— Writing high-quality code
— Documentation: Create and maintain code and architecture documentation
— Collaborating with teams: Working closely with other developers, QA, designers, and Product Owner, to ensure the successful delivery of projects
— Keeping an eye on security
— Participate in planning
— Solving complex problems
What you get in return:
— Competitive Salary: A fixed salary in EUR with annual performance reviews to recognize your growth
— Remote Work Option: Enjoy the flexibility and comfort of working remotely
— Comprehensive Benefits: Includes medical insurance, access to a psychologist, and participation in our English-speaking club
— Paid Time Off: 20 vacation days + 10 lieu days, plus national holidays
— Paid Sick Leave: Up to 10 working days per year
— Professional Development Support: We reimburse courses, training, and certifications to help you grow in your career
— Self-Development Perks: Reimbursement available for language classes, sports activities, massages, or sessions with a life coachPlease note that feedback on your application will be provided within two weeks if a positive decision is made regarding your candidacy.
I give my consent, following the Law on the Protection of Personal Data dated June 1, 2010, No. 2297, effective from January 1, 2011, for the processing of information classified as personal data.
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· 76 views · 3 applications · 27d
NodeJS Backend Developer + Data (only Ukraine)
Full Remote · Ukraine · Product · 5 years of experience · Upper-IntermediateWe are looking for a NodeJS Backend Developer. Every developer in our team can impact the flow of technology – from introducing the smallest library to making big infrastructure changes. We welcome open-minded developers who like to share knowledge and...We are looking for a NodeJS Backend Developer. Every developer in our team can impact the flow of technology – from introducing the smallest library to making big infrastructure changes. We welcome open-minded developers who like to share knowledge and help each other push the company forward to the cutting edge of today’s tech. Our team can do it all (NodeJS, MongoDB, Redis, K8S, SQL, Docker, Google Pub/Sub, and Cloud Services-GCP).
Responsibilities:- Design & develop services in NodeJS, MongoDB, SQL
- Work both autonomously and collaboratively across disciplines with Product and Developers
- Solve various product challenges with creative solutions
Support existing internal products
Requirements:
- B.Sc. in computer science or equivalent
- Experience with Backend Services NodeJS - minimum 4 years - must
- Deep understanding of NodeJS Core Infrastructure – async operations, multi threads, and streams
- Experience with Kafka/PubSub or any other message broker
- Experience with MongoDB and MySQL
- Experience with Cloud Services (GCP)
- Experience with Docker and Orchestration Infrastructures (K8S) and microservices
- Experience with server API and HTTP calls on a large scale
- Experience with OOP principles and design
Freely spoken English
Advantages:- Experience with Redis
- Experience with CI-CD
What we offer:
- 20 working days’ vacation;
- 10 paid sick leaves;
- public holidays;
- equipment;
- accountant helps with documents;
- many cool team activities.
Apply now and start a new page of your fast career growth with us!
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· 69 views · 10 applications · 10d
Senior Back-End Developer
Ukraine · Product · 3 years of experience · IntermediateThis is a fantastic opportunity to join a fast-growing company at the heart of the digital revolution. Our software product is revolutionising manufacturing through automation. We are trusted by global brands and work across sectors (mobility, consumer...This is a fantastic opportunity to join a fast-growing company at the heart of the digital revolution. Our software product is revolutionising manufacturing through automation. We are trusted by global brands and work across sectors (mobility, consumer goods, machinery etc).
We have a talented and ambitious team. We value integrity and are passionate about our mission to revolutionise advanced manufacturing.
This is your opportunity to:
- Be part of a fast-growing software product company in advanced manufacturing.
- Learn and fulfil your potential in an open, knowledge-driven culture.
- Share in our ambitious vision and make a meaningful difference towards autonomous manufacturing.
Responsibilities:
- Development of new features and new parts of the app.
- Work in a cross-functional Scrum team alongside Frontend and QA Engineers.
- Maintaining, improving and extending existing functionality.
- Сonstantly improving code organization and evolving application design.
You will be joining a well-versed team if you have:
- Bachelor’s Degree or Master’s Degree in Computer Science.
- Minimum of three years of experience in Node.JS development.
- Nice to have: 1 year of experience in React.JS development.
- Experience with Sequelize, PostgreSQL, database design, microservices.
- Understanding of CI/CD.
- Git branching strategies.
- Scrum Agile principles and processes.
- English level - Intermediate and higher.
Our tech stack: microservices, Node.JS, React.JS, PostgreSQL, Kubernetes, AWS.
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· 119 views · 15 applications · 12d
Node.js Developer with AI Expertise – Vibe Coder
Full Remote · Ukraine · Product · 4 years of experience · IntermediateAscendix Technologies is a global technology company delivering innovative cloud and AI-powered solutions since 1996. With offices across Europe and a remote-first culture, we combine deep technical expertise with a forward-looking mindset to build...Ascendix Technologies is a global technology company delivering innovative cloud and AI-powered solutions since 1996. With offices across Europe and a remote-first culture, we combine deep technical expertise with a forward-looking mindset to build scalable, intelligent applications.
Are you passionate about Node.js and eager to work in a cutting-edge environment where AI is integral to the development process? At
Ascendix, we embrace “vibe coding” — a collaborative approach where developers write approximately 50% of their code with AI assistance. This role is for you if you want to be at the forefront of AI-augmented software development.
As a Node.js Developer with AI expertise, you will:
- Develop backend services primarily in Node.js, leveraging AI tools to generate roughly half of your codebase.
- Collaborate closely with AI coding assistants (e.g., OpenAI, Anthropic models) to accelerate development while maintaining high code quality.
- Experiment with AI-driven workflows and continuously improve the integration of AI-generated code into production systems.
- Participate in code reviews, ensuring AI-generated contributions meet maintainability and security standards.
Document technical solutions and share AI best practices within the team.
What We Expect
- Minimum 4 years of professional experience with Node.js and backend development.
- Hands-on experience working with AI and Large Language Models (LLMs) in software development over the past year.
- Comfort with writing and reviewing code where approximately 50% is AI-generated, embracing a vibe coding mindset.
- Be an advanced user of Cursor, Github Copilot, Windsurf, Trae, or similar AI-first IDEs.
- Hands-on Experience with using UI generating assistants like v0.dev, lovable, replit, bolt, or similar.
- Strong English communication skills (Intermediate+).
- Familiarity with cloud AI services (Azure AI, AWS Textract) and frameworks like NestJS is a plus.
- Understanding of CI/CD pipelines and automated testing.
Please note
By clicking the “Apply” button for the vacancy, you automatically consent to process your personal data.We sincerely appreciate each response and the expressed interest in our job opening. If we do not contact you within a week, it means that, at this moment, your CV has not been selected for further consideration for this position. Nevertheless, we will keep your resume in our candidate database and will definitely inform you if a vacancy that matches your experience becomes available.
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· 118 views · 32 applications · 9d
Lead Node.js developer
Full Remote · Countries of Europe or Ukraine · Product · 6 years of experience · Upper-IntermediateFAVBET Tech develops software that is used by millions of players around the world for the international company FAVBET Entertainment. We develop innovations in the field of gambling and betting through a complex multi-component platform which is capable...FAVBET Tech develops software that is used by millions of players around the world for the international company FAVBET Entertainment.
We develop innovations in the field of gambling and betting through a complex multi-component platform which is capable to withstand enormous loads and provide a unique experience for players.
FAVBET Tech does not organize and conduct gambling on its platform. Its main focus is software development.
Main areas of work:- Betting/Gambling Platform Software Development — software development that is easy to use and personalized for each customer.
- Highload Development — development of highly loaded services and systems.
- CRM System Development — development of a number of services to ensure a high level of customer service, effective engagement of new customers and retention of existing ones.
- Big Data — development of complex systems for processing and analysis of big data.
- Cloud Services — we use cloud technologies for scaling and business efficiency.
Requirements:- 6+ years of pure backend Nodejs development experience
- 1+ years of leading the teams
- Strong understanding of system scalability and designing high-performance systems.
- Proficiency with TypeScript
- Expertise in API development
- Experience with Docker
- Message brokers like RabbitMQ, NATS etc
- PostgreSQL
- Strong understanding of design patterns and SOLID principles
- Strong understanding of application security principles
- Nice to have: Gambling domain experience
Will be a plus:
Experience with Nest.JS
Experience with NoSQL databases (e.g. MongoDB, Redis)
Responsibilities:
- Lead and manage the development team, fostering collaboration, mentorship, and technical excellence.
- Design, develop, and implement new features and components for the service, ensuring scalability and performance.
- Identify and resolve technical issues encountered during the development process.
- Maintain and enforce coding standards, ensuring consistency, readability, and adherence to best practices.
- Plan and document tasks independently, providing clear and actionable descriptions for assigned responsibilities.
Create and maintain technical documentation for implemented features, ensuring clarity for both the team and stakeholders.
We offer:
- 30 days off — we value rest and recreation;
- Medical insurance for employees and the possibility of training employees at the expense of the company and gym membership;
- Remote work or the opportunity — our own modern lofty office with spacious workplace, and brand-new work equipment (near Pochaina metro station);
- Flexible work schedule — we expect a full-time commitment but do not track your working hours;
- Flat hierarchy without micromanagement — our doors are open, and all teammates are approachable.
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· 108 views · 12 applications · 6d
Trainee/Junior/ Node.js Developer
Office Work · UkrainePixel mindIT is an innovative IT company specializing in software development, web applications, and mobile apps. We bring together a team of professionals who work with the latest technologies. You’ll find a creative approach to solving complex...Pixel mindIT is an innovative IT company specializing in software development, web applications, and mobile apps. We bring together a team of professionals who work with the latest technologies. You’ll find a creative approach to solving complex challenges, efficient project management, and a continuous improvement process with us.
Requirements:- Strong proficiency in HTML/CSS, JavaScript, TypeScript, and backend development with Node.js.
- experience with Node.js, specifically using Express.js and Nest.js frameworks.
- In-depth understanding of networking principles, including RESTful API design and HTTP/HTTPS protocols.
- Hands-on experience working with GraphQL APIs.
- Proficiency in working with various databases such as MongoDB, Redis, MySQL, and PostgreSQL.
- Willingness to deepen knowledge of Object-Relational Mapping tools like Mongoose, Prisma.js, TypeORM, and Sequelize.
- Familiarity with Git version control and practical experience using GitHub in collaborative development environments.What We Offer:
- Flexible working hours.
- A friendly and welcoming work environment in a comfortable office.
- Official employment with a competitive salary based on your experience and skills.
- An exciting opportunity to contribute to innovative projects.Pixel mindIT – We Code the Future!
Pixel mindIT is a groundbreaking IT company specializing in software development, web applications, and mobile apps. We bring together a team of professionals who work with the latest technologies. You’ll find a creative approach to solving complex challenges, efficient project management, and a continuous improvement process with us.
Our Key Services:
• Development of innovative web applications
• Mobile apps
• UI/UX design
• IT consulting and supportWhy Work with Us?
• Positions available for all levels – from Trainee to Middle
• Corporate apartment for comfortable relocation and accommodation (for candidates from outside Lviv)
• English courses to support your professional growth
• A modern office with high-quality equipment and a comfortable workspace
• A friendly team that fosters professional and personal development
• Competitive salary based on your experience and English proficiencyJoin Pixel mindIT– let’s code the future together!
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· 92 views · 6 applications · 6d
Trainee Node.js Developer
Office Work · Ukraine (Lviv) · IntermediateWe are looking for a talented Trainee Node.js developer to join our team and develop innovative projects using JavaScript, Node.js, and different databases. Ideally, you need to have a passion for programming, great soft skills, and good English. It is...We are looking for a talented Trainee Node.js developer to join our team and develop innovative projects using JavaScript, Node.js, and different databases.
Ideally, you need to have a passion for programming, great soft skills, and good English.
It is a full-time position in our Lviv office.
Requirements:▪️ Solid understanding of Node.js
▪️ Proficiency with JavaScript
▪️ Working with SQL/NoSQL databases: Redis, MongoDB, and MSSQL
▪️ Knowledge of OOP
▪️ English level: Intermediate+ (written, spoken)
▪️ Desire to work and study new technologies, approaches, and best practices
▪️ Attentive to details
Will be a plus:
▪️ Knowledge of Front End Development
▪️ Bachelor's degree in Computer Science or an equivalentResponsibilities:
▪️ Write clean and maintainable code using Node.js
▪️ Testing modules and integration
▪️ Development of the server part of the application
▪️ Implement back-end functionality according to requirements
▪️ Staying current on new technologies and best practices
▪️Communicate with the customer and team members
We offer:
▪️ IT Club membership
▪️ 18 days of vacation + 8 days of paid state holidays
▪️ Health insurance
▪️ Compensation for language trainings
▪️ Compensation for educational courses, training, and certificates
▪️ Compensation for sport activities
▪️ Mentorship program
▪️ Employee recognition program with awards
▪️ Running club
▪️ Reading club
▪️ Cozy and pet-friendly office
▪️ Weekly sweets & fruits office days
▪️ Corporate bookshelf
▪️ Office relax zone with PS4, VR, table games, table tennis, aero hockey, mini football table, and gymnastic ladder.
We are looking for a team player!
Are you interested? We would be glad to receive your CV.
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· 80 views · 14 applications · 12d
Senior PHP / Node.js Engineer
Full Remote · Worldwide · 5 years of experience · Upper-IntermediateQIT Software is looking for an experienced Senior PHP / Node.js Engineer who wants to be part of a global product team with a strong engineering culture and a modern tech stack. We have mature development processes, solid DevOps practices, and a strong...QIT Software is looking for an experienced Senior PHP / Node.js Engineer who wants to be part of a global product team with a strong engineering culture and a modern tech stack. We have mature development processes, solid DevOps practices, and a strong focus on clean code and software quality. If you’re someone who takes ownership, enjoys shaping architecture, and loves automation — we might be a great match.
Hiring process:
1 - Pre-screen (up to 30 mins), 2 - Test task, 3- Technical interview (~30-45 mins), 4- Final interviewRequirements:
- 5+ years of experience in backend development
- Strong hands-on experience with PHP (Symfony or Laravel) and Node.js (both required)- Experience with Domain-Driven Design (DDD), Saga Pattern, Event Sourcing, and CQRS is required.
- Solid understanding of microservice architecture
- Experience with Docker and Kubernetes in production
- Familiarity with CI/CD pipelines and tooling
- Skilled in writing tests and maintaining code quality
- English level B2 or higher for team communicationResponsibilities:
- Build and maintain microservices using PHP and Node.js
- Design and implement scalable APIs and internal services
- Contribute to technical decisions and architectural discussions
- Work on refactoring and improving the existing codebase
- Collaborate through code reviews and pair programming
- Follow and help improve CI/CD processes and testing standards
- Participate in TDD/BDD, A/B testing, and best practice adoptionWill be a plus:
- Experience with TypeScript
- Background in high-load or scalable systems
- Experience working in distributed, international teamsWhat we offer:
- The ability to work remotely from anywhere in the world;
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- Flexible work schedule, no micromanagement, no strict deadlines and free overtime work;
- Work in European and American products with a modern technology stack in different industries (Finance, Technology, Health, Construction, Media, etc.);
- Revision of wages every year or on an individual basis;
- Accounting support and full payment of taxes by the company;
- 100% compensation for remote English lessons;
- Paid 15 vacation days, 5 sick days and public holidays. -
· 116 views · 13 applications · 27d
Back-end Developer with Node.js Python
Full Remote · Ukraine · 2 years of experience · Upper-IntermediateWhat We're Looking for: - 2-3 years of commercial experience on this position - Node.js - Python - TypeScript - PostgreSQL - FastAPI - Django - AWS - Docker - GCP - English level Upper-Intermediate ...What We're Looking for:
- 2-3 years of commercial experience on this position
- Node.js
- Python
- TypeScript
- PostgreSQL
- FastAPI
- Django
- AWS
- Docker
- GCP
- English level Upper-Intermediate
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· 131 views · 42 applications · 24d
Middle Node.js/MongoDB Engineer
Full Remote · Countries of Europe or Ukraine · 3 years of experience · Upper-IntermediateHello everyone! We are looking for a Middle Node.js Engineer to join a project in Silicon Valley. Project Idea The project was founded back in 2014 with the goal of connecting private and government universities with regular people like we are. You have...Hello everyone!
We are looking for a Middle Node.js Engineer to join a project in Silicon Valley.
Project Idea
The project was founded back in 2014 with the goal of connecting private and government universities with regular people like we are. You have a variety of auditoriums, gyms, classrooms, and other venue options available for community use —
schedule facility uses and manage requests from the community all in one place.
Just imagine that you’re a football player and you can rent a football field at Harvard to play with your friends. Amazing, right?What exciting things is the product doing for the community?
The product is transforming the way public and private spaces are discovered, reserved, and used across communities — all online and accessible anywhere.
What is the team size and structure?
Our team consists of: 1 Tech Lead, 2 Front-End developers, 3 Back-End developers, 1 React-Native developer, 1 Data Engineer, UI/UX Designer, 2 QA, 1 AQA, and PM.
How many stages of the interview are there?
— Interview with the Recruiter — up to 30 min.;
— Interview with PM — up to 30 min.;
— Technical interview — up to 1 hour;
— Interview with the client — up to 1 hour.
Requirements:
Must have:
- 3+ years of working experience using Node.js;
- Hands-on experience with MongoDB;
- Experience with Serverless and Lambda functions (pet-project also works);
- Understanding NoSQL (MongoDB, relations, triggers, etc.);
- Experience working with Jira and Confluence (understanding what is A/C, DoD, and Scrum ceremonies);
- Experience in building schemas, validations, and models using Mongoose in Node.js applications;
- Upper-intermediate or higher level of English.
Soft skills:
- Proactive — you take ownership and act without waiting for direction;
- Detail-oriented — you deliver accurate, high-quality work;
- Initiative-driven — you’re eager to improve processes and take action.
Would be a plus:
- Experience with other programming languages;
- Experience with MongoAtlas;
- Degree in a technical field.
Responsibilities:
- Development of the web application with search functionality;
- Development of the Client application’s structure;
- Direct communication with the development team and customers;
- Participation in sprint planning and task evaluation;
- Ensuring the code tests coverage.
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· 157 views · 54 applications · 3d
Backend Developer(Node.js)
Full Remote · Countries of Europe or Ukraine · Product · 3 years of experience · IntermediateAIstats is an innovative ecosystem of football products, combining advanced big data analysis and computer vision technologies. Our goal is to enhance football understanding for fans and create new game analysis opportunities for professionals. We are a...AIstats is an innovative ecosystem of football products, combining advanced big data analysis and computer vision technologies. Our goal is to enhance football understanding for fans and create new game analysis opportunities for professionals.
We are a fast-growing team of 30 people based in Poland. Recently, we secured investments from Google executives and leading mobile company founders, which helped us increase our company’s value fourfold in the past year.
Our Products:
- AIstats Mobile App – a consumer product for fans and bettors, which has already reached 100K MAU since its launch in September.
- AIstats Business Solutions – analytics tools powered by ML models and computer vision technologies, helping clubs and scouts make more informed decisions.
Team Culture and Values:
AIstats is the place for those who want to transform the industry! We are building a long-term business to lead football analytics. Our goal is not just to create a product but to build an entire ecosystem. We value ambition, responsibility, and a results-driven mindset. At AIstats, there’s no micromanagement - only trust, autonomy, and freedom to experiment. We work top-down, focus on big goals, and seek people ready to make a real impact.
Job Overview:
We are currently looking for a talented Backend Developer to join our growing team.
Key Responsibilities:
- Development of new HTTP and WebSocket endpoints with integration of third-party APIs (REST/gRPC/GraphQL - depending on tasks).
- Writing unit and integration tests to ensure correct operation of APIs, including boundary cases and work with external services.
- Performing load testing and code profiling to identify bottlenecks and improve performance.
- Working closely with frontend, analytics and product teams - from discussing specifications to implementing solutions in production.
Requirements:
Must have:
- Strong knowledge of Node.js and TypeScript, experience in REST/WebSocket API development.
- Experience with microservice architecture and interaction between services via RabbitMQ, Redis, TCP connections.
- Knowledge of PostgreSQL (query writing, indexing, transactions, migrations).
- Experience with MongoDB and understanding when it is appropriate to use it.
- Experience with Docker, understanding of how docker-compose works.
- Understanding of the principles of Nginx as a proxy server (including in the context of WebSocket/HTTPS).
- Proficiency with Socket.io, understanding of its features (e.g., rooms, reconnect, persistence, etc.).
- Experience in configuring logging, debugging and profiling backend code.
Will be a plus:
- Experience with Elasticsearch: setting up and using it for full-text search.
- Load testing skills and tools (e.g. k6, Artillery, autocannon).
- Understanding and implementation of HTTPS, certificates, working via secure WebSocket.
- Experience with CI/CD and build automation in a Docker environment.
- Team development experience: code review, git flow, Jira/YouTrack/Linear.
Goals for the probationary period:
- Familiarize with the product architecture, internal processes and the stack used.
- Integrate the first HTTP/WebSocket endpoints into the backend by connecting third-party APIs.
- Participate in ongoing tasks to fix bugs and improve stability.
- Gradually take responsibility for small modules and confidently navigate the codebase.
What we offer:
- A dynamic work environment with a passionate team focused on sports and technology.
- Paid sick leave (6 days) and 24 days of flexible vacation.
- Opportunities for professional growth and career development.
- Full remote work options and flexible working hours.
Join our team and help drive innovation in the football industry!
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· 60 views · 5 applications · 20d
Senior Backend Engineer (Node/Go)
Full Remote · Ukraine · 7 years of experience · Upper-IntermediateOur team is growing, and we are looking for a talented Senior Backend Engineer. In this role, you’ll work primarily on backend API development using Node.js (TypeScript), while also contributing to our powerful CLI tools written in Go. You’ll have a...Our team is growing, and we are looking for a talented Senior Backend Engineer. In this role, you’ll work primarily on backend API development using Node.js (TypeScript), while also contributing to our powerful CLI tools written in Go. You’ll have a direct hand in shaping the architecture, scalability, and quality of a system used by modern engineering teams.
Our customer believes that cloud infrastructure should be effortless and invisible, empowering teams to build, ship, and scale without barriers. We’re building the future of cloud consumption. If you’re passionate about building robust APIs, powerful CLI tools, and world-class backend systems — it will be a match.
Come join the company that’s reinventing how teams manage distributed cloud in today’s fast-moving cloud era. We’re on a mission to help organizations automate infrastructure provisioning and enable self-service to accelerate their business.
Responsibilities:
- Lead backend API development using Node.js (TypeScript) — designing, building, and maintaining scalable services.
- Contribute to CLI development with Go, enhancing tooling that empowers users to interact seamlessly with the platform.
- Architect and optimize backend systems and APIs, ensuring performance, security, and reliability at scale.
- Take complete ownership of projects, from initial definition and design to development, testing, and post-deployment.
- Collaborate closely with a tight-knit R&D team through code reviews, technical discussions, and product planning.
- Uphold coding standards and best practices while influencing architectural and technical decisions.
- Communicate technical concepts clearly across engineering and product teams.
Requirements:
- Bachelor's degree in computer science or equivalent engineering experience from a distinguished military unit.
- 6+ years of software engineering experience, with 3+ years focused on backend development at scale.
- Expert-level knowledge of Node.js (TypeScript) backend development, with extensive experience building RESTful APIs and working with microservices architectures.
- Strong background in relational databases (e.g. MySQL, PostgreSQL), caching (e.g. Redis, Dragonfly), and cloud services (AWS: S3, RDS, IAM).
- Solid understanding of software architecture, API design, distributed systems, and scalable backend patterns.
- Excellent English communication skills (written and verbal).
- A collaborative spirit and drive for tackling complex technical challenges in a fast-paced startup environment.
Will be a plus:
- Hands-on experience with Go, particularly in building CLI tools or backend systems.
- Experience with Infrastructure as Code tools like Terraform, Pulumi, or CloudFormation.
- Familiarity with Docker, Kubernetes, and containerized application delivery.
- Experience working with graph databases (e.g., NeptuneDB, Neo4j).
We offer
People: The new team is just being built. You will work directly with our client’s side representative and have your influence on the crucial designs and architecture of the applications.
Self-development: We guarantee regular challenges and the ability to make your own decisions, you will be able to visit leading international tech conferences and organize meetings on the client’s side.
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· 102 views · 3 applications · 12d
Node.js Engineer
Office Work · Poland · 0.5 years of experience · Pre-IntermediateWe're looking for a skilled Node.js developer who is eager to learn and grow with us. You'll be developing and maintaining high-quality applications using Node.js and related technologies. This is a fantastic opportunity to work on exciting projects, be...We're looking for a skilled Node.js developer who is eager to learn and grow with us. You'll be developing and maintaining high-quality applications using Node.js and related technologies. This is a fantastic opportunity to work on exciting projects, be part of a friendly team, and take your career to the next level. Come join us and let's build great things together!
🧰 Requirements:- At least 1 year of commercial experience as a Node.js engineer.
- Strong knowledge of JavaScript and TypeScript.
- Experience with Express.js.
- Experience with relational databases (PostgreSQL and/or MySQL).
- Familiarity with AWS services (ec2, s3, lambda).
- Good understanding of RESTful API design principles.
- Unit testing (mocha/jest).
- Excellent problem-solving and debugging skills.
- Strong communication and collaboration abilities.
- Pre Intermediate English (or higher).
🧰 As a plus:
- Experience with Nest.js
- Experience with Docker
- Non-relational databases (mongoDB, redis, elasticsearch)
💻 Responsibilities:
- Developing and maintaining high-quality applications using Node.js and related stack.
- Following high-end coding standards.
- Troubleshooting and debugging applications to ensure optimal performance.
- Implementing and maintaining database systems.
- Designing and implementing RESTful APIs.
- Participating in code reviews to ensure code quality.
- Keeping up-to-date with industry trends and best practices in Node.js development.
- Collaborating with cross-functional teams to deliver tasks on time.
🎁 We offer:
- Competitive salary
- Paid time off and holidays
- Professional development opportunities
- Collaborative and inclusive work environment
- Opportunity to work on challenging and innovative projects
- Growth opportunities within the company
- Office located in Kraków