Cowchain

Cowchain blockchain development company is actively looking for Project Manager 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🦾

• Experience in Web3.
• More than a year of commercial experience in IT project management, preferably in outsourcing.
• Demonstrated success in software project execution.
• Mastery over Agile/non-Agile and a keen understanding of SDLC.
• Skills in project discovery, pre-sales, and detailed requirement documentation.
• Leadership and team management capabilities.
• A proactive approach to challenges.

• Fluent in English (Upper-Intermediate).

   

General tech stack our company💻

• React.js, Next.js, Javascript, Tailwind CSS, SCSS, SASS, Material UI knowledge
• Node.js, Nest.js
• MongoDB, MYSQL, MSSQL, PostgreSQL
• TheGraph (Subgraph), Event indexing backend
• EVM-based blockchains (Ethereum, Avalanche, Polygon, Binance Smart Chain, Arbitrum, Base etc.)
• Web3.js/Ether.js libraries
• Solidity, Rust
• Non-EVM-based blockchains (Solana, TON etc.)

We’ll match if you have🗿

• Independent thinking and proactive position in development
• Strong problem-solving skills with a keen ability to think analytically and approach complex challenges.
• Attention to detail.
• Strong tech research skills.
• Excellent communication and collaboration skills, with the ability to work effectively in a team-oriented environment.

What we promise you🎈

• Flexibility: The ability to choose when and where to work, ensuring a work-life balance.
• Rewards: Attractive pay and bonuses for additional achievements.
• Taking care of you: Paid vacation, sick days, and a 100% friendly work environment.

Cowchain blockchain development company is actively looking for Fullstack JS (React + Node.js) Developer to join our DApp development team.

About us:
Cowchain have successfully completed 70+ projects mainly on EVM-based blockchains such as Ethereum, Polygon, Binance Smart Chain, Avalanche including Coinmarketcap leaders with 180M+ total capitalization and 20M+ daily trading volume in Move2Earn, Play2Earn and DeFi industries.

Required skills:
— At least 1-year commercial experience in the front-end development
— Node.js experience is A MUST
— Responsive layout, SCSS
— Typescript, axios
— Next.js
— JIRA, gitflow

Will be a huge plus:
— Web3/Ethers libraries

Tech stack:
— React.js, Javascripts, Tailwind css, SCSS, SASS
— Node.js, Nest.js, Microservices
— PostgreSQL
— TheGraph (Subgraph), Event indexing back-end
— Azure, AWS, Google Cloud
— Docker, Kubernetes
— EVM-based blockchains (Ethereum, Avalanche, Polygon, Binance Smart Chain, Velas, Hedera etc)

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

Cowchain blockchain development company is actively looking for Web3 + Frontend/backend team lead 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.

Tech stack:

— Front-end frameworks: React.js
— State management: MobX, Zustand  
— Build & bundling: Webpack, Rollup, Vite  
— Backend platforms: Node.js (Nest.js)
— API: REST, GraphQL (Apollo)  
— Databases: PostgreSQL, MongoDB, Redis  
— Microservices & architecture: Monolith → Microservices, Onion/Clean Architecture  
— Message brokers & queues: RabbitMQ, Kafka, Bull (Redis)  
— DevOps & infra: Docker, Ubuntu
— Cloud & hosting: AWS (EC2, S3, RDS, CloudFront), DigitalOcean  
— CI/CD: GitHub Actions, GitLab CI
— Monitoring & logging: Grafana, Prometheus, Sentry
— Indexers: TheGraph (Subgraph), власні Event-Indexing сервіси
— Blockchain : EVM-based, Solana, TON, Tron, Account Abstraction, Meta-Transactions, Layer-2, Foundry
— Languages : Solidity, Rust, Typescript

Lead Responsibilities
— Lead the technical aspects of the project and take ownership of the quality of its technical deliverables.
— Manage project execution: plan tasks, monitor deadlines, remove blockers, and proactively notify management of risks.
— Mentor and support the team: conduct pair programming, training sessions, and code reviews.
— Actively participate in development: write code, tackle critical tasks, and fill in gaps to ensure project completion.
— Ensure alignment on project goals and execution approach, resolve conflicts constructively, and uphold the agreed product vision.
— Enforce development standards as well as team culture and values; work alongside the Engineering Manager to resolve any misalignments.

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:

— Interest in the field of web3

Cowchain blockchain development company is actively looking for Web3 + Frontend/backend team lead 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.

Tech stack:

— HTML5, CSS3, JavaScript (ES6+), TypeScript  
— Front-end frameworks: React.js
— State management: MobX, Zustand  
— UI/CSS: Tailwind CSS, Bootstrap, Material-UI, SASS/LESS  
— Build & bundling: Webpack, Rollup, Vite  
— Backend platforms: Node.js (Nest.js)
— API: REST, GraphQL (Apollo)  
— Databases: PostgreSQL, MongoDB, Redis  
— Microservices & architecture: Monolith → Microservices, Onion/Clean Architecture  
— Message brokers & queues: RabbitMQ, Kafka, Bull (Redis)  
— DevOps & infra: Docker, Ubuntu
— Cloud & hosting: AWS (EC2, S3, RDS, CloudFront), DigitalOcean  
— CI/CD: GitHub Actions, GitLab CI
— Monitoring & logging: Grafana, Prometheus, Sentry
— Authentication & authZ: OAuth2/OpenID Connect (Keycloak, Auth0), JWT, Passport.js  
— Testing: Jest, Mocha/Chai, Cypress, Selenium  
— Security best practices: OWASP Top 10, CSP, Helmet.js

Lead Responsibilities
— Lead the technical aspects of the project and take ownership of the quality of its technical deliverables.
— Manage project execution: plan tasks, monitor deadlines, remove blockers, and proactively notify management of risks.
— Mentor and support the team: conduct pair programming, training sessions, and code reviews.
— Actively participate in development: write code, tackle critical tasks, and fill in gaps to ensure project completion.
— Ensure alignment on project goals and execution approach, resolve conflicts constructively, and uphold the agreed product vision.
— Enforce development standards as well as team culture and values; work alongside the Engineering Manager to resolve any misalignments.

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:

— Interest in the field of web3

Cowchain blockchain development company is actively looking for Resource Manager 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.

We are looking for an experienced Resource Manager to manage and optimize resource allocation within our team. If you have an analytical mindset, excellent communication skills, and strive for efficiency, this role is for you!

Your responsibilities will include:

• Team Allocation: Effectively allocate available team members to projects based on their expertise, past experience, and current schedule.
• Operational Oversight: Oversee daily project operations and related resource assignments.
• Capacity Planning: Plan workforce capacity to ensure the company has enough resources to support future projects.
• Workload Monitoring: Track and manage employee workload, utilization rates, and overtime.
• Conflict Resolution: Resolve conflicts related to resource allocation.
• Gap Addressing: Address resource gaps through effective resource management methods, such as reallocating personnel or increasing staff, and notify senior leadership of any challenges that could impact client deliverables due to resource limitations.
• PM Support: Assist project managers in handling resource-related issues and help to enhance resource management processes.
• Strategic Awareness: Stay informed about all active and upcoming projects, as well as business development efforts, in order to plan resource allocation effectively.
• HR Collaboration: Work closely with the HR team on matters such as staff training, compensation and benefits, payroll, and recruitment for project needs.
• Record Keeping: Keep thorough records of processes, such as producing weekly reports on resource utilization.

We are looking for someone with:

• Proven experience in a similar role.
• A deep understanding of resource management processes.
• Excellent analytical skills and the ability to work with large volumes of data.
• Understanding of resource management (e.g., working hours, roles in the IT market);
• Strong communication and interpersonal skills.
• The ability to effectively solve problems and make decisions.
• The ability to multitask and thrive in a fast-paced environment.

• Technical knowledge

   

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

Cowchain blockchain development company is actively looking for Backend Developer(Solana) 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 3-year commercial experience in the Backend development
— Node.js experience is A MUST
— Ability to use Solscan to analyze data;
— Compiling, signing and sending transfer transactions;
— Compiling, signing and sending swap transactions;
— Transaction mult-signatures
— Pump.fun / Jupiter / Raydium;
— Bignumber.js / bn.js
— Understanding of gas, priority fee, token account creation
— Meme-coin creation Pump.fum/Meteora
— JIRA, gitflow

Tech stack:
— Node.js, Nest.js, Microservices
— MYSQL, MSSQL, PostgreSQL
— TheGraph (Subgraph), Event indexing back-end
— Azure, AWS, Google Cloud
— Docker, Kubernetes

Will be a plus:
— EVM-based blockchains (Ethereum, Avalanche, Polygon, Binance Smart Chain, Velas, Hedera etc)
 

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

Cowchain blockchain development company seeks a Lead Generation Manager 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.

🛠 What You Bring to the Table:

— Testing new features

— Maintaining bug log

— Work with the development team

— Work within the Scrumban environment

— Have fun

Required Skills:

— 1 year of manual testing

— Experience in JIRA

— Good understanding web3 domain, user experience

🎉 Our Promise to You:

Flexibility: Choose when and where you work, promoting a work-life balance.

Rewarding Compensation: Attractive pay, and bonuses for added contributions.

Stay Ahead: Immerse yourself in the rapidly expanding world of blockchain and cryptocurrency.

Cutting-edge Tech: Engage daily with advanced blockchain technologies.

Care for You: Generous paid vacation, sick leaves, and a promise of a 100% friendly/family work environment.

🌟 Bonus Points for:

Experience in the Web3/blockchain domain.

Cowchain blockchain development company seeks a QA Team Lead 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.

About the Role

We are looking for a proactive and experienced QA Team Lead to build and lead the QA function across our company’s products. This role requires a hands-on professional with strong leadership skills and a deep understanding of quality assurance best practices for web and mobile applications.

Key Responsibilities1. QA Process Ownership
Define and implement QA best practices (manual & automation) across Web and Mobile platforms.

• Establish and maintain standardized processes and documentation (test cases, bug templates, acceptance criteria).

• Develop and continuously improve QA strategies aligned with the company’s development lifecycle.

   

2. Product Quality Control
Design and maintain comprehensive test documentation (Test Plans, Test Strategies, Test Reports).

• Ensure high test coverage and product stability across all environments (Dev, Testnet, Mainnet, Staging).

• Oversee both manual and automated testing processes.

   

3. Team Leadership & Development

• Mentor and support QA engineers through regular 1-on-1s, code/test reviews, and performance evaluations.

• Foster a culture of quality, ownership, and continuous improvement.

   

4. Analytics & Reporting

• Track and analyze QA metrics (Defect Leakage, Bug Fix Rate, Coverage).

• Provide regular updates and insights to senior management (e.g., weekly sync reports for COO).

   

5. Cross-Functional Collaboration

• Actively participate in planning and grooming sessions (Scrum, Kanban).

• Support release processes and ensure thorough post-release validation.

   

6. Test Automation Development

• Initiate and/or lead the development of automation frameworks (UI, API, smart contracts – if applicable).

• Promote automation as a core part of the QA strategy.

   

7. Continuous Improvement

• Identify gaps and propose innovative solutions to enhance overall QA effectiveness and release quality.

   

Experience in Web3 will be a big plus!

Goals for the Role

• Build a Scalable QA System: Implement a full QA cycle covering all company products from the ground up.
• Improve Release Quality: Reduce production defects and increase test automation coverage.

Cowchain blockchain development company seeks a Sales Team Lead 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.

Key Responsibilities:

Company Representation
Represent the company at industry events, conferences, and partner/client calls — acting as a brand ambassador to strengthen market presence.

Partnership Development
Identify and build strong partnerships that open up new business opportunities and expand market reach.

Sales & Lead Generation Strategy
Design and implement strategies to drive sales growth and improve lead generation processes.

Reputation Management
Monitor and enhance the company’s public image and reputation within the industry and client network.

Team Leadership
Lead, mentor, and scale the sales and lead generation teams. Set clear goals, track performance, and foster a results-oriented culture.

Community Engagement
Establish and grow the company’s presence in relevant communities to increase brand awareness and trust.

Sales Training & Development
Build training frameworks to continuously develop the skills and effectiveness of the sales team.

Data-Driven Analytics
Analyze sales data and performance metrics. Generate reports to inform strategic decisions and improve results.

Customer Relationship Management
Build strong, long-term relationships with clients, ensuring satisfaction and encouraging loyalty.

Feedback Integration
Set up and manage feedback loops from clients to inform product/service improvement.

Innovative Sales Tactics
Explore and apply creative, data-driven tactics to improve sales conversion rates.

Negotiation & Deal Closure
Lead negotiations and successfully close deals that meet company targets and establish long-term cooperation.

Qualifications

— Proven experience in B2B sales or sales team management (3+ years)

— Strong leadership and communication skills

— Experience with CRM systems and sales analytics

— Excellent negotiation and presentation skills

— Ability to develop scalable strategies and lead by example

— English: Upper-Intermediate or higher

— Experience in Web3 will be a big plus!

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

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