Jobs

PulsePaw is a community of IT professionals united by a shared vision of creating outstanding projects. We focus on delivering turn-key products in the FinTech industry. Our approach enables us to offer not only full-cycle software development but also product and business development services, including marketing accompaniment.
At our company, you'll have the opportunity to grow, engage in meaningful projects, and see the real impact of your contributions.

About the project: This role is part of a client project specializing in the cryptocurrency area. You’ll join a remote team responsible for the development of a global product built on a microservices architecture. 

The tech stack: Node.js, TS, Nest.js, BTC, ETH, and SOL, MySQL/PostgreSQL, RabbitMQ, Kubernetes. The product follows Domain-Driven Design (DDD), PCI DSS standards, and uses Feature Branch Flow


Responsibilities:
Backend Development: Develop a new backend for an existing project.
Full Development Cycle: Take ownership of the entire development process.
Requirements & Architecture: Define technical requirements and system architecture.
Product Release: Ensure successful product release and ongoing maintenance.
Product Logic: Develop and maintain business logic features.
Infrastructure: Handle infrastructure-related tasks such as deployment, scaling, and performance optimization


Must Have:
Experience: 4+ years of experience in program engineering, and deep understanding of the crypto and blockchain industry.
Blockchain Practical Knowledge: At least 2 years of experience with BTC/ETH/SOL.
English: At least, Intermediate level.
Programming: Proficiency in Node.js, TypeScript, and Nest.js.
Databases: Experience with relational databases (MySQL, PostgreSQL).
Message Queues: Hands-on experience with RabbitMQ.
Job Queues: Proficiency in Bull (Redis).
Architecture & Principles: Knowledge of DDD, EDA, SOLID, OOP, and Design Patterns.
High-Load Systems: Extensive experience in building stable and high-load applications.
Security: Experience with PCI DSS.
Containers & Orchestration: Proficiency in Kubernetes.

Nice to Have:
Experience: Experience with developing a cryptocurrency wallet.
Fintech & Banking: Experience in the Fintech or Banking sectors.

Conditions and Benefits:
Remote-friendly culture: Work from anywhere in the world with a flexible schedule in CET timezone.
Opportunities for growth: Take advantage of paid training, English-speaking clubs, support for certifications, and participation in professional events.
Room for ideas and ownership: We work in teams with full autonomy, empowered by our clients to take complete ownership of our projects.
Benefits and compensation: Partial coverage of coworking space rent and psychotherapy, 50% of the cost of professional training and certifications.
Tech-Driven Environment: Work with modern internal tools (no legacy systems).

Description

We are seeking an experienced software engineer with 5 to 7 years of professional experience to join us on a project focused on enhancing and extending a specific system within our platform. This role is suited for someone who can quickly adapt to an established architecture and contribute effectively to delivering high-quality, production-ready software. The emphasis is on hands-on development, technical documentation, aligned with current technical direction, not long-term design ownership or system re-architecture.

You’ll be joining a globally distributed product organization with teammates in Canada, the UK, and across Europe. While many of us enjoy in-person collaboration when possible, we’re fully equipped to support remote work.

Our team works closely with product designers, engineers, and researchers to build tools that help over 3,400 customers make smarter decisions through human insight. We value transparency, inclusivity, and a shared commitment to solving meaningful problems. We believe the best outcomes come from diverse perspectives and open, honest collaboration.

We’re driven by values that shape how we work together every day:
Teamwork, ownership, accountability, proactivity, transparency, empathy, inclusivity, and a commitment to continuous learning and growth.

Requirements

• Strong hands-on software development experience with modern engineering practices
• Proficiency in: TypeScript, Node.js, gRPC, Kafka, MongoDB, GraphQL
• DevOps skills are preferred, experience with Kubernetes, Docker, ArgoCD, AWS, CI/CD pipelines, monitoring and observability (DataDog)
• Familiarity with distributed systems, microservices, and serverless patterns.
• Ability to work within existing architectures with a focus on consistency, maintainability, and delivery.
• Experienced in creating clear technical documentation and implementation strategies
• Comfortable with evaluating solutions pragmatically and applying proven patterns within defined boundaries.
• Strong collaboration and communication skills in cross-functional teams.
• A proven track record of delivering production-ready software in a timely manner.
• Fluent in English.

Job responsibilities

• Contribute directly to a pre-scoped system as part of a defined project initiative.
• Collaborate with and guide engineers and product managers to translate requirements into solid implementations.
• Ensure code quality, reliability, and performance through thoughtful development and testing practices.
• Align your work with existing patterns and decisions, integrating effectively into our established software ecosystem.
• Document and communicate your work clearly to support smooth deployment and maintenance.
• Participate in code reviews and technical discussions focused on short-term outcomes and cohesive delivery.

Our Customer:

The company is a global leader in Virtual and Augmented Advertising and Product Placement, with over a decade of experience in the industry. It partners with TV stations and producers worldwide to deliver impactful, AI-enhanced advertising solutions that generate new revenue and elevate brand visibility. Initially focused on traditional advertising, the company now specializes in integrating virtual reality and AI into television advertising. The company’s technology is used in live tournaments and annual non-sports events.

Responsibilities:

• Develop and maintain the backend pipeline to monitor, synchronize, and manipulate data workflows over the cloud and on-premise;
• Integrate and manage modules written both in C++ and Node.js;
• Implement a complex metadata system over AWS, including S3 security access and acceleration;
• Design and deploy backend architecture (Node.js) to manage data allocation and pipeline control;
• Create and maintain a dashboard to monitor pipeline status and performance.

Required experience and skills:

• 8+ years of experience in backend development;
• Experience with Node.js;
• Experience with AWS;
• Proficiency in Client-Server architecture design at scale;
• English — Upper-Intermediate.

Would be a plus:

• Experience with database management, particularly MySQL;
• Experience with C++ real time programming;
• Experience with sports broadcasting and AR technology.

Working conditions:

• 5-day working week, 8-hour working day, flexible schedule;
• All UA public holidays are days off;
• Vacation and sick leave are covered by the company;
• Remote work.

We are seeking a Senior PHP / Node Developer with a strong background in either the casino industry or financial systems. The ideal candidate will have extensive experience in developing backend services using PHP and Node.js, and a deep understanding of queuing systems such as RabbitMQ and Kafka, as well as database systems like MySQL and MariaDB. The candidate will play a crucial role in building and maintaining high-performance backend services. 

Responsibilities: 

• Develop and maintain backend services using PHP and Node.js to handle high volumes of financial transactions. 
• Design, implement, and manage robust and scalable database solutions using MySQL/MariaDB. 
• Integrate and manage queuing systems like RabbitMQ and Kafka to ensure efficient transaction processing. 
• Collaborate with DevOps engineers, and other team members to deliver high-quality products. 
• Conduct code reviews, optimize performance, and ensure security best practices. 
• Troubleshoot and resolve complex technical issues related to backend services and transaction handling. 
• Mentor junior developers and contribute to the continuous improvement of the development process. 
• Apply software development methodologies, such as Agile and Scrum, to ensure efficient project management and delivery. 
• Implement and maintain containerization solutions using Docker. 

Requirements: 

• Bachelor’s degree in computer science, Information Technology, or a related field, or equivalent experience. 
• At least 5 years of experience in backend development with a focus on PHP and Node.js. 
• Proven experience in the casino industry or financial systems. 
• Strong knowledge of queuing systems such as RabbitMQ and Kafka. 
• Extensive experience with MySQL and/or MariaDB, including complex query optimization and database design. 
• Familiarity with RESTful API design and development, as well as GraphQL, Protobuf, and Flatbuffer 
• Experience with version control systems. 
• Strong understanding of software development methodologies, such as Agile and Scrum. 
• Good grasp of containerization principles and experience with Docker. 
• Strong problem-solving skills and the ability to work in a fast-paced environment. 
• Excellent communication and collaboration skills. 

OROMOON is a cosmic intelligence app redefining personal growth—an AI-powered platform blending astrology, mindfulness, and emotional clarity. We’re building a tool for the soul that feels like a reset button in your pocket, and we’re looking for a skilled Back-End Developer to help us bring this vision to life.

This is a part-time consulting role...perfect for someone who’s efficient, autonomous, and thrives in a fast-moving, early-stage environment. You’ll collaborate closely with our front-end lead to strengthen our infrastructure, optimize performance, and scale our AI-driven features.

🌙 Your Mission:

• Build, maintain, and refine our back-end using Node.js and MongoDB
• Optimize API performance for efficiency and scale
• Manage and streamline cloud costs (AWS preferred, Firebase experience a plus)
• Ensure platform security and stability as we grow
• Support the development of AI-driven features like personalized horoscopes, transit analysis, and moon phase insights

• Solve challenges with creative, clean, and scalable solutions (bonus points if debugging is your superpower...we have a tricky natal chart bug that could use some love.)

   

🌙 What We’re Looking For:

• Strong experience with Node.js and MongoDB
• Cloud infrastructure knowledge...AWS preferred (Firebase a plus)
• Proven ability to build scalable, secure back-end systems for mobile apps
• Passion for optimizing cloud costs and performance
• Clear, proactive communication style...you know how to work independently but collaborate when it counts

• An eye for detail, a heart for problem-solving, and a mind that loves to learn

   

🌙 Bonus Points:

• Experience with AI/ML applications

• Familiarity with cloud budgeting tools & cost-saving strategies

   

🌙 Why Join Us:

• A high-impact role...our work will directly shape how people experience the magic of Oromoon
• Flexible hours...you work when it works for you
• A tight-knit, values-driven team...we’re building something bigger than ourselves

• The chance to work on cutting-edge AI features that bring ancient wisdom into the modern age

   

If you’re looking for a project that’s meaningful, challenging, and a little bit magical, we’d love to hear from you. 

At SwyTapp, we’re building robust, scalable systems to power the next generation of subscription-based applications. We're currently developing a subscription management platform similar to RevenueCat, and we’re looking for a talented BE JS Lead  to join our team.

Due to family-related changes, our current BE Lead is transitioning to part-time. We’re now looking for a new hero to take over the leadership role. You’ll receive full support during the transition phase and continued guidance from the outgoing Lead for at least 3 months.
 

Key Responsibilities:

• Design and develop the backend architecture of the subscription management system
• Lead and collaborate with an existing backend team (currently 3 developers)
• Work closely with FE and QA engineers (4 team members)
• Write clean, maintainable, and well-documented code
• Participate in architectural discussions and conduct code reviews
• Take initiative in clarifying business requirements in collaboration with the Product team
   

Requirements:

Must-Have:

• Strong hands-on experience with NestJS and TypeScript
• Proficiency with PostgreSQL or similar relational databases
• Ability to work with limited documentation and proactively gather requirements
• Experience in a technical leadership or team lead role
   

Nice-to-Have:

• Experience with TypeORM
• Familiarity with OLAP databases
• Working knowledge of Docker and containerized development
• A good sense of humor and collaborative attitude 
   

What We Offer:

• Fully remote and flexible work environment
• Opportunity to work on a technically challenging project from the ground up
• Collaboration with an experienced team and a supportive client
• A fun, dynamic atmosphere on a meaningful and impactful project

Cowchain blockchain development company is actively looking for Backend Developer to join our development team.

About us:
Cowchain have successfully completed 120+ projects mainly on EVM-based blockchains such as Ethereum, Polygon, Arbitrum, Base including Coinmarketcap leaders with 180M+ total capitalization and 20M+ daily trading volume in Move2Earn, Play2Earn and DeFi industries.

Required skills:
— At least 2-years commercial experience in the back-end development
— Node.js Express
— Node.js Nest
— MSSQL, MySQL, PostgreSQL, MongoDB
— RabbitMQ, Redis Cache
— JIRA, gitflow
— EVM-based blockchains (Ethereum, Avalanche, Polygon, Binance Smart Chain, Velas, Hedera etc)

Tech stack:
— React.js, Next.js, Javascripts, Tailwind css, SCSS, SASS, Material UI
— Node.js, Express, Nest.js, Microservices, Reddis, RabbitMQ
— Mongodb, MYSQL, MSSQL, PostgreSQL
— TheGraph (Subgraph), Event indexing back-end
— Azure, AWS, Google Cloud
— Docker, Kubernetes

What will you do:
— New features development
— Bugfixes and support existing solutions
— Participate in project architecture discussions
— Build solutions from scratch as well as join on-going development process
— Have fun

What we offer:
— Flexible working schedule, remote work
— Competitive salary with bonuses for activities
— Ability to dive into fast-growing blockchain/crypto industry
— Work with modern tech stack (blockchain)
— Paid vacations, sick leaves
— 100% friendly/family team

Will be a huge plus:
— Web3/Ethers libraries
— React development experience

Admiral Studios is a fast-growing Ukrainian IT outsourcing company, specializing in web development, mobile development, UI/UX, and SEO.

We embrace the latest and most advanced technologies: Node.js, React, Laravel, Shopify, Python, and WordPress.

We create quality projects for clients in the US, Europe, the UK, and Canada 🌍, especially Healthcare, Real Estate, and E-commerce projects.

Currently, our team consists of more than 60+ skilled experts 👨‍💻, and we are constantly growing.

Now, we’re looking for a Node.js Developer ⭐️ to expand our team and work on exciting web projects across various industries.  You will work with up-to-date technologies, build new features, collaborate with an experienced team, and grow professionally in a dynamic environment.
 

For a perfect match, we expect  🎯

• 2+ year of сommercial experience Node.js (Nest.js & Express.js)
• Experience with SQL and NoSQL (MySQL, MongoDB, PostgreSQL)
• REST API development and working with websockets
• Knowledge and application of OOP and SOLID principles
• Experience with Docker
• Experience with cloud platforms (AWS or similar services)

Duties & Responsibilities 💼

• Development and support functionality across several projects
• Implementation of new features and optimization of existing ones
• Integration of third-party services (payment systems, email providers, AI APIs)
• Ensuring code quality, scalability, and performance best practices
• Communicate with clients
• Work closely with designers, developers, and project managers
  
  
  Why Join Admiral Studios?

💡Growth-Oriented Environment – value efficiency, flexibility, and results.

🤝Team Spirit – Regular corporate online & offline events to keep the team connected
📚Professional Development Support – we provide:

• A structured Performance Review system.
• Access to an internal knowledge library.
• Career growth opportunities with a clear development plan.
• A budget for improving work processes and implementing new ideas..

🌍Work-Life Balance – Enjoy a flexible work schedule and a fully remote work model.
✅Paid Time Off – 20 vacation days + 10 sick leave days per year.

Hiring steps:
Screening — Tech Interview — СТО Interview — Job Offer 🔥

If your experience and skills match our candidate scorecard, the recruiting team will contact you within 5 business days 💙

Don't forget to provide your Telegram nickname for contact.

Required Technologies:

Node.js, Express.js / Nest.js
JavaScript (ES6+) / TypeScript
SQL (PostgreSQL, MySQL), NoSQL (MongoDB, Redis)
REST API, GraphQL, WebSockets
Git (GitHub/GitLab), Docker (preferred)
Postman for API testing
 

Nice to Have:

Understanding of OOP, SOLID principles, and design patterns
Experience with testing frameworks (Jest, Mocha, Chai)
 

Requirements:

English level: B1 or higher
Strong motivation to learn and develop in backend engineering
 

We Offer:

Interesting and challenging projects
Vast opportunities for professional development
Competitive salary
Friendly team of professionals
Comfortable working environment

# Senior Backend Engineer (Node.js) - AI-Driven Gaming Platform

Location: Remote | Team: AceGuardian at A5 Labs

## About the Role

We're building cutting-edge AI-driven experiences that redefine industry standards in online gaming. As our Senior Backend Engineer, you'll drive technical initiatives across teams to build scalable web applications, in-app solutions, and integrations that power our innovative gaming platform.

## What You'll Build

- Highly-available and performant gaming applications

- Scalable backend systems for global audiences

- MVPs and production-ready solutions for online poker games

- Integration systems with various service providers

- Robust microservices architecture

## Required Skills

- 7+ years backend development (3+ years in senior/lead role)

- Strong Node.js expertise

- Advanced TypeScript/JavaScript knowledge

- REST APIs, GraphQL, gRPC, and WebSockets

- Testing frameworks (Jest)

- Databases (PostgreSQL, MongoDB, DynamoDB)

- Caching and queues (Redis, RabbitMQ, Kafka)

- High-load and concurrent systems

- Microservices and distributed systems

- Security best practices

## Nice to Have
 

- Experience with NestJS

- DevOps and CI/CD pipelines

- Cloud platform expertise (AWS, Cloudflare)

- Background in gaming or high-concurrency applications

## About Us
 

AceGuardian at A5 Labs combines gaming expertise with AI technology to revolutionize both gaming and real-world problem-solving. Our team focuses on building advanced AI agents through reinforcement learning, game-solving, fine-tuning, and planning, tackling challenges like anti-cheat detection and optimal gameplay.

## What We Offer

- Remote-first environment

- Opportunity to work on innovative AI projects

- Collaboration with experts in AI and game development

- Flexible work environment

- Career growth in a fast-growing company

- Supportive and dynamic team
 

Ready to help build the future of AI-powered gaming technology? Join us in creating resilient, scalable systems that power the next generation of online gaming experiences. We'd love to hear from you!

Good day, we have built a Snapchat style platform to help people sell items in bulk and FAST!!!

We have a very talented iOS developer and backend developer and are now looking to hire a new full stack / front end developer to support our new release(s).

Our backend is written in NodeJS and ExpressJS so you must be an expert in NodeJS.  We're also doing some API development so please have good experience here as well.

Other parts of our stack:
- Front end = ReactJS
- Back end = NodeJX
- Code is on Github
- Hosting = AWS EC2
- Web server = NGINX
- Process manager = PM2
- Database = Firesale Real Time DB
- Storage = Firebase Storage
- Ai = OpenAI and Deepgram
- Video/Audio support = FfMpeg

About the Project

We are building a modern platform focused on large-scale data processing for the media & analytics industry. The backend is powered by a microservice architecture with a strong emphasis on performance and scalability.

Your Responsibilities

• Develop and maintain backend microservices using Node.js and TypeScript
• Implement REST APIs, authentication, data processing, and caching
• Write unit/integration tests
• Collaborate with DevOps, product, and QA teams
• Contribute to documentation and clean code practices

Requirements

• 4+ years of experience with Node.js (ideally with TypeScript)
• Solid understanding of REST APIs and SQL databases (especially PostgreSQL)
• Experience with Docker, Git
• Ability to read and understand technical documentation in English

What We Offer

• Vacation: 15 bussines days
• Sick leave: 7 bussines days
• 6 public holidays
• Salary in crypto
• Remote

Akvelon is a known USA company, with offices in places like Seattle, Mexico, Ukraine, Poland, and Serbia. 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 Senior FS SDE for a large-scale logistics and maritime industry project. The project focuses on developing innovative software solutions to optimize cargo operations, improve efficiency, and streamline logistics processes for ports and terminals worldwide.

Requirements:

• Proficiency in JavaScript and TypeScript
• Strong experience with Node.js in a backend environment
• Experience with React
• Solid understanding of RESTful APIs and backend architecture
• Familiarity with version control tools, especially Git
• Strong problem-solving skills and attention to detail.
• Excellent communication and teamwork abilities.

Overlap time requirements: 2-3 hrs with PST

Working conditions and benefits:

• Paid vacation, sick leave (without sickness list)
• Official state 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)
• Employee support program (Discount, Care, Health, Legal compensation)
• Paid external training, conferences, and professional certification that meets the company’s business goals
• Internal workshops & seminars
• Corporate library (Paper/E-books) and internal English classes.

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

We are looking for a Full Stack Developer with a focus on BackEnd.
Remote work format (We consider candidates who live geographically in Ukraine and do not plan to go abroad)

Requirements:
 

— You have been working with NodeJS 1+ years;
— Have experience with at least one of the NodeJS frameworks (Express, NestJS);
— Experience with SQL/NoSQL: PostgreSQL, MySQL, MongoDB, DynamoDB;
— Experience with various ORM like Sequelize, Type ORM, Prisma ORM;
— Experience with Next.js, React.js will be a plus;
— You have experience with WebSockets;
— Fundamental understanding of OOP principles;
— Upper-intermediate English proficiency, with the ability to effectively communicate technical issues and discuss project requirements.
— Conversational English;

— Experience with AWS (S3, EC2, Cloudfront, Lambdas, Amplify, Cognito etc), Google Cloud Platform will be a plus;

— Familiar with Docker;

— Friendly relationships with Git;

— Microservices and monolithic design patterns knowledges.

Soft Skills:

— Excellent problem-solving skills;

— Strong communication and collaboration abilities;

— Ability to work independently and within a team;

— Detail-oriented and organized.

Cooperation format:
 

- Outstaff, transparent business model, full-time

- Projects via Upwork with foreign clients

We offer:

– Projects with foreign clients

– Growth prospects in FullStack (React, Next.js)

– Frontend mentoring and team support

– Transparent model: outstaffing, stable employment

– Comfortable atmosphere without micromanagement

— Work within a friendly team;

— Fixed salary $

— Paid vacation and sick leave;

— Required technical literature available on demand;
— Do you want a cool workshop, seminar or conference — come, talk and trip!

We are looking for a Full Stack Developer with a focus on Back-End.
Remote work format (We consider candidates who live geographically in Ukraine and do not plan to go abroad)

Requirements:

— 1 year of commercial experience in the industry.

— Full-stack experience designing.

— Excellent JavaScript/TypeScript skills and strong proficiency in React.
— Experience with Next.js will be a plus.

— Familiarity with the MERN stack and experience with Nest.js will be a plus.

— Familiarity with building back-end APIs, monolith and microservice applications.

— Experience using RESTful APIs and basic authentication mechanisms.

— Ability to showcase previous work via live web pages and Github/Gitlab/Bitbucket.‍

— Upper-intermediate English proficiency, with the ability to effectively communicate technical issues and discuss project requirements.

Soft Skills:

— Excellent problem-solving skills;

— Strong communication and collaboration abilities;

— Ability to work independently and within a team;

— Detail-oriented and organized.

Cooperation format:
 

- Outstaff, transparent business model, full-time

- Projects via Upwork with foreign clients

We offer:

– Projects with foreign clients

– Growth prospects in FullStack (React, Next.js)

– Frontend mentoring and team support

– Transparent model: outstaffing, stable employment

– Comfortable atmosphere without micromanagement

— Work within a friendly team;

— Fixed salary $

— Paid vacation and sick leave;

— Required technical literature available on demand;
— Do you want a cool workshop, seminar or conference — come, talk and trip!