Jobs

We are looking for enthusiastic backend addition to our perspective team! Our company highly evaluates the professional with next personal skills:

Adaptivity
Responsibility
Openness to grow with the team
Initiative 

Our company uses next stacks and frameworks:
NestJs
NodeJs
PostgreSQL
GraphQL
The work is remote, 5/2 
The communication within the team is on English!

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 Nest;
— MSSQL, MySQL, PostgreSQL;
— RabbitMQ, Redis Cache, BullMQ;
— JIRA, gitflow;
— EVM-based blockchains (Ethereum, Avalanche, Polygon, Binance Smart Chain, Velas, Hedera etc);
— Deep understanding of EVM and smart contracts (Solidity).
 
Tech stack:
— Node.js, Express, Nest.js, Microservices, Reddis, RabbitMQ;
— MYSQL, MSSQL, PostgreSQL;
— TheGraph (Subgraph), Moralis, Alchemy, Infura, 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)

Will be a huge plus:
— Web3/Ethers libraries;
— React development experience;
— Experience with DEX/CEX integration (Uniswap, PancakeSwap, Binance API);
— Solidity / Hardhat / Foundry.

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.


 

Description:

Are you ready to take your Node.js career to the next level?

Ficus Technologies, a leader in cutting-edge tech solutions, is seeking a Node.js Developer to join our dynamic team.

Position Overview:

We are looking for a Node.js Developer (Middle level) to join our team and contribute to the development of a direct mail automation platform tailored for real estate investors and professionals in the U.S.

The system allows users to design, schedule, and manage high-conversion mail campaigns targeting property owners across the country. You’ll be part of a stable and experienced team, working on backend features, integrations, and scalable architecture.

About the project:

The platform offers robust features such as:

Campaign Management: Design and monitor mail campaigns with custom templates and targeting.

Smart Scheduling & Cadence: User-defined timing logic and delivery goals.

Address List Management: Upload, validate, and segment property owner lists.

Tracking & Reporting: Real-time insights on mail status, bounce rates, and performance.

Credit & Billing System: Stripe-based payments with flexible credit/refund handling.

The backend is built with Node.js, NestJS, PostgreSQL, Supabase, Cerbos (access control), deployed on Google Cloud Platform, and follows a monorepo architecture using TurboRepo.

Responsibilities:

-Implement backend functionality using Node.js/NestJS;

-Design and maintain scalable APIs following OpenAPI specifications;

-Work with PostgreSQL, Redis, and Supabase to manage and query data;

-Integrate and manage Stripe-based billing systems;

-Implement access control via Cerbos;

-Collaborate with frontend developers, QA, and PMs to ensure smooth delivery;

-Write tests using Jest and maintain a clean, modular codebase;

Contribute to CI/CD pipelines and containerized deployment via Docker.

Requirements:

-2+ years of experience with Node.js and related backend technologies;

-Solid knowledge of NestJS;

-Strong experience with PostgreSQL and understanding of relational data modeling;

-Familiarity with Redis and Supabase;

-Experience working in a monorepo (TurboRepo or similar);

-Understanding of OpenAPI for API contracts;

-Experience with Docker and cloud deployment (preferably GCP);

-Basic understanding of access control tools like Cerbos;

-Experience with Stripe or other payment integrations;

-English level B1+ or higher — ability to participate in team communication.

Will be a plus:

Experience with real-time data syncing (e.g., Supabase subscriptions);

Familiarity with gRPC, GraphQL, or serverless functions;

Experience working on fintech, CRM, or campaign-based platforms;

Public GitHub, LinkedIn, or portfolio links.

We offer:

Remote-first culture and flexible schedule;

Long-term cooperation and stable product development;

Tech-savvy team and supportive work environment;

Challenging tasks with room for professional 

Project Overview:
We’re developing a cutting-edge dental application that connects dental practices with laboratories to streamline workflows and enhance patient care.

Tech Stack:

• Language: Strong expertise in TypeScript;
• Backend: NestJS, Prisma, PostgreSQL;
• Messaging: Kafka or RabbitMQ;
• Cloud: AWS (S3, EC2, Lambda);
• DevOps: Kubernetes;
• Security: JWT, crypto libraries;

• Additional: Zod, RxJS.

   

Responsibilities:

• Develop and maintain backend services using NestJS and Prisma;
• Design and optimize PostgreSQL database schemas and queries;
• Build robust, event-driven systems with Kafka or RabbitMQ;
• Manage cloud infrastructure and serverless functions on AWS;
• Implement secure authentication and authorization flows using JWT;
• Support containerized deployment pipelines via Kubernetes;
• Contribute to architecture decisions and codebase improvements.

Requirements:

• 3+ years of backend development experience;
• Strong knowledge of TypeScript and Node.js;
• Deep understanding of scalable backend architectures;
• Hands-on experience with AWS and Kubernetes;
• Familiarity with security best practices and cryptographic libraries;
• Bonus: experience with RxJS and schema validation using Zod.

What We Offer:

• Flexible remote work;
• Competitive salary;
• A product with meaningful impact in healthcare;
• Opportunity to work with modern cloud-native technologies.

Requirements:

- Excellent knowledge of JavaScript (including ECMAScript 6+)

- Excellent knowledge and strong experience with Node.js

- Real experience on Nest.js, Fastify.js, Sequelize.js

- Excellent knowledge of PostgreSQL

- Excellent knowledge of Docker / Docker Compose

- Google Cloud Platform (Firebase: Auth, Firestore)

- Serverless approach (AWS Lambda or similar)

- Real experience on AI Chat-bots & agents development Vertex AI + OpenAI platform

- Understanding of building/deployment process and tools

- Free use of Git branches

- Constant use of unit testing during development

- Written English

It's desirable:

- Having a higher education

- Experience with AWS API Gateway, SQS, CloudWatch

- Spoken English

- Experience of working in a team

This vacancy suppose performing the presence of the project with a browsable source code in a personal portfolio (public repository or a link to the archive with the source code)

Job Description

We are looking for an experienced Backend Developer (Node.js/NestJS) to join our team to develop and maintain the backend of our company’s projects. You will work on building web services and APIs, using a modern tech stack and cloud infrastructure, and you’ll also be involved in communication with clients at every stage of the project.

If you’re confident with Node.js and TypeScript, know how to design scalable backend architecture, and are ready to take ownership of your work - this role is for you. Expect engaging challenges (including work on AI/chatbot projects), a flexible remote work setup, and a supportive team of professionals.

 

Responsibilities

• Backend Development: Build new functional modules and APIs using Node.js/NestJS, and maintain/refactor existing code.
• System Architecture: Participate in system design and choose optimal solutions and technologies for new features and projects.
• Database Work: Design data schemas, optimize queries, and ensure efficient interaction with SQL/NoSQL databases.
• Estimations & Client Communication: Estimate task complexity and participate in sprint planning. Communicate directly with clients to clarify requirements, discuss technical decisions, and demonstrate results.
• Code Quality: Write unit and integration tests, participate in code reviews. Detect and fix bugs quickly while improving performance and security.
• Deployment & Support: Participate in CI/CD and release processes. Set up environments, deploy applications to the cloud (GCP/AWS) or company servers, and ensure service uptime and monitoring.

Requirements

• Commercial Experience: At least 2 years of experience developing backend systems with Node.js.
• JavaScript/TypeScript: Excellent knowledge of JavaScript (ES6+) and confident production-level experience with TypeScript.
• Node.js & Frameworks: Strong hands-on experience with Node.js. Proven experience with NestJS in real projects. Familiarity with other Node.js frameworks like Express or Fastify and solid understanding of backend design patterns.
• Databases: Excellent knowledge of SQL and experience with relational databases (especially PostgreSQL). Ability to design efficient DB schemas and optimize queries. Experience with NoSQL databases such as MongoDB.
• ORM/ODM: Experience with tools like Sequelize, TypeORM, or similar for interacting with databases.
• Caching & Queues: Experience using Redis for caching, task queues, or session storage. Understanding when and how to apply caching while maintaining data consistency.
• Containerization & DevOps: Confident in working with Docker and Docker Compose. Understanding of CI/CD processes and deployment tools (e.g., GitLab CI, GitHub Actions, Jenkins). Experience setting up and maintaining environments. (DevOps experience is a plus.)
• Cloud & Serverless: Experience with cloud platforms, particularly Google Cloud Platform (GCP) — including Firebase (Auth, Firestore). Understanding serverless architecture principles and experience with serverless functions (e.g., AWS Lambda or similar).
• API & Integrations: Skilled in building RESTful APIs (GraphQL is a plus). Knowledge of authentication/authorization (JWT, OAuth2, etc.) and experience integrating third-party services and APIs.
• AI & Chatbots: Practical experience in developing chatbots or AI agents. Participation in projects using Google Vertex AI and/or OpenAI API is a strong advantage.
• Development Tools & Workflow: Proficient with Git. Experience working in Agile teams, participating in code reviews, and writing clean documentation.

• Soft Skills: Analytical mindset, responsibility, and independence. Ability to communicate clearly with both team members and clients, and to explain technical decisions in simple terms.

  Upper-Intermediate or higher English is required for meetings and client communication.

Nice to Have

• Experience with Python development (knowledge of Django or Flask is a plus).
• Knowledge of other backend languages/environments (e.g., PHP, Go, Java) to show breadth of expertise.
• Experience designing microservices architectures, understanding SOA principles. Familiarity with message brokers (RabbitMQ, Apache Kafka) and stream processing.
• Familiarity with gRPC, GraphQL, and API design using those technologies.
• Understanding of high-load system design principles and performance optimization techniques.
• Experience with container orchestration systems (Docker Swarm, Kubernetes) and infrastructure as code tools (Terraform, Ansible).

What We Offer

• Remote Work: Work from anywhere. The only requirement is a stable internet connection and availability during agreed hours. Flexible schedule focused on results, with occasional calls with the team and clients.
• Competitive Compensation: Salary from $1000 to $2000 USD/month (net), with growth opportunities based on your skills and contribution. Final terms are discussed individually after the interview.
• Interesting Projects: You’ll work on a variety of client products — from web platforms to AI-powered chatbots — with real impact on tech decisions and room for creativity.
• Professional Development: A team of experienced developers, regular code reviews, and knowledge sharing. We support professional growth by covering expenses for relevant courses, books, and certifications (upon agreement).
• Team & Culture: A small, tight-knit team that values direct communication, initiative, and responsibility. Minimum bureaucracy, maximum openness to your ideas.
• Long-Term Collaboration: Full-time employment with long-term prospects. We invest in growing in-house experts — for successful team members we offer expanded responsibilities, promotion opportunities, and regular compensation reviews.

If you see yourself in the description above and are ready to grow with us - send us your resume! We’d be happy to get to know you and discuss the details of our potential collaboration.

Location: Remote

Job Type: Project Contract 4 months

Start Date: ASAP (As Soon As Possible)

Please note: This is a contract position with an immediate start date. We are looking for a candidate who can quickly integrate into our team and begin contributing from day one.

About Us

TechChain Solutions is a dynamic technology firm focused on building high-performance financial platforms. We create sophisticated tools that empower users to navigate complex market environments with speed and reliability. Our team is driven by innovation, and we are currently developing a new trading platform from the ground up.

The Role

We are seeking a skilled Middle Nest.js Developer to join our core backend team. You will step into a project with a well-structured, high-quality codebase and play a key role in implementing complex business logic within our microservices architecture.

Your primary focus will be the automation of trading operations on Centralized Exchanges (CEX). You will be responsible for translating trading strategies into robust, high-performance code, building out the logic for working with orders, and ensuring seamless, low-latency integration with various exchange APIs. This is a hands-on role where you will be writing the code that powers our automated trading bots.

Key Responsibilities:

1. Develop and Maintain Backend Services with Nest.js and TypeScript. Your core task will be to write clean, efficient, and reliable code within our existing microservices architecture, focusing on the implementation of trading-related features.
2. Work with Databases using Prisma ORM. You will be responsible for writing queries, managing data, and working with schemas in PostgreSQL, using Prisma as the primary tool for database interaction.
3. Work with a Large, Existing Codebase. You will need to quickly get up to speed with our current architecture, understand how the services interact, and continue development while adhering to our established quality standards.
4. Integrate with Third-Party CEX APIs (REST & WebSocket). You will implement the logic to connect with centralized exchanges to fetch order books, manage trades, and handle real-time market data.
5. Implement Trading Logic and Automation. You will translate trading strategies and business requirements into functional code, building out the core logic for our Order Service and automating actions with exchanges.
6. Collaborate with the Team. You will work closely with the Backend Lead, other developers, and the frontend team to define and ship features in a fast-paced environment.

Required Qualifications & Skills (Must-Haves):

• 2.5+ years of professional experience in backend development with Node.js and TypeScript.
• Strong, hands-on experience building applications with the Nest.js framework.
• Solid experience with relational databases, specifically PostgreSQL, and practical skills using Prisma ORM.
• Hands on using CEX DEX
• Experience integrating with complex third-party APIs.
• Experience with message broker technologies (we use BullMQ).
• Proficiency with Git and modern development workflows.

• A proactive mindset with strong problem-solving skills.

   

How to know if you are the right fit:

• You understand the differences between a CEX (Centralized Exchange) and a DEX (Decentralized Exchange) and have hands-on experience using both.
• You are comfortable working within an existing microservices architecture and can quickly adapt to a large codebase.
• Will be a big plus if you have practical experience building trading bots or other systems that automate actions with exchange APIs.
• You understand the difference between a Limit Order and a Market Order and understand what is Order Book and hot it works.
• You have a strong interest in the Crypto/FinTech space and are eager to work on a high-performance trading platform.

What We Offer:

- Competitive compensation.

- A fully remote and flexible work environment.

- The opportunity to work on a high-impact, greenfield project with a modern tech stack.

- A focused and collaborative team culture.

Location: Remote

Job Type: Project Contract 4 months

Start Date: ASAP (As Soon As Possible)

Please note: This is a contract position with an immediate start date. We are looking for a candidate who can quickly integrate into our team and begin contributing from day one.

About Us

TechChain Solutions is a dynamic technology firm focused on building high-performance financial platforms. We create sophisticated tools that empower users to navigate complex market environments with speed and reliability. Our team is driven by innovation, and we are currently developing a new trading platform from the ground up.

The Role

We are looking for a skilled Middle Nest.js Developer with a strong practical background in blockchain and Web3 technologies. You will join our team to focus on the implementation and maintenance of our DEX-focused services, working primarily on the logic involving wallets, on-chain transactions, and smart contract interactions, which is the core of our platform's on-chain operations.

Your main tasks will be to develop microservices and work within a large codebase, writing the code that interacts directly with multiple blockchains (EVM, Solana, TON), managing secure transaction signing, and implementing logic for DEX trading strategies. This is a hands-on role where you will work with libraries like Ethers.js, solana/web3.js, and ton/ton to build reliable and secure on-chain solutions within our existing Nest.js microservices architecture.

Key Responsibilities:

1. Develop and Maintain Backend Services with Nest.js. Your primary responsibility will be to write clean, secure, and efficient TypeScript code, focusing on on-chain interactions, wallet management, and transaction processing.
2. Work with Databases using Prisma ORM. You will manage data related to wallets, groups, and transactions in our PostgreSQL database using Prisma.
3. Work with a Large, Existing Codebase. You need to be able to quickly understand our current microservices architecture and contribute high-quality code that aligns with our standards.
4. Implement DEX-related Logic. You will write code that interacts with Automated Market Maker (AMM) protocols (like Uniswap), handles token transfers (ERC-20 & SPL), and manages the lifecycle of on-chain transactions.
5. Contribute to our Asynchronous Task System. You will work with our existing transaction processing system built on BullMQ and Redis to ensure reliable and scalable on-chain operations.

Required Qualifications & Skills (Must-Haves):

• 2.5+ years of professional experience in backend development with Node.js and TypeScript.
• Strong, hands-on experience building applications with the Nest.js framework.
• Solid experience with relational databases (PostgreSQL) and practical skills using Prisma ORM.
• Deep, practical experience with Web3 libraries for at least one of the following blockchains: EVM-compatible chains (using ethers.js/web3.js), Solana, or TON.
• Solid understanding of blockchain fundamentals: transactions, the mempool, gas, blocks, and smart contracts.
• Hands-on experience interacting with ERC-20 and/or SPL token contracts.

• A proactive and security-first mindset, especially when dealing with private keys and on-chain funds.

   

How to know if you are the right fit:

• You understand what GAS is, why it's needed, what is difference between sending ETH and ERC20 tokens. You are familiar with the concept of a dedicated "gas wallet".
• You know the DIfference betwen DEX and CEX. You understand what is Automated Market Maker (AMM) on a DEX works and can explain its key differences from a traditional Central Limit Order Book (CLOB) found on CEXs.
• You have practical experience sending tokens between wallets and calling methods on smart contracts.
• You are excited by the challenge of building a secure and scalable system that manages a large number of wallets and performs on-chain actions.

What We Offer:

- Competitive compensation.

- A fully remote and flexible work environment.

- The opportunity to work on a high-impact, greenfield project with a modern tech stack.

- A focused and collaborative team culture.

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.

Job Title: Mid-Level Node.js Backend Developer (FinTech / Contract) 
Location: Remote 
Job Type: Project Contract 4 months - (1st project).  
Start Date: ASAP (As Soon As Possible) 

Please Note: This is a contract position with an immediate start date. We are looking for a candidate who can quickly integrate into our team and begin contributing from day one. 

About Us
We create sophisticated tools that empower users to navigate complex market environments with speed and reliability. Our team is driven by innovation, and we are currently developing a new trading platform from the ground up. 

The Role 
We are urgently seeking a skilled Mid-Level Node.js Backend Developer. You will join our core backend team, working alongside a Backend Lead and another Mid-Level Developer, and collaborating closely with our frontend team to ensure seamless integration. 

This role is an opportunity to step into a project that is already in active development and features a well-structured, high-quality codebase. Your primary focus will be on implementing complex business logic, managing our database layer with Prisma, and working within our event-driven architecture powered by BullMQ. We will expect you to contribute code that matches our existing high standards for quality and maintainability.

Key Responsibilities (Core Requirements):
*   Design, develop, and maintain high-quality backend services using Node.js and the Nest.js framework. 
*   Implement and manage database schemas, queries, and migrations with Prisma ORM against a relational database (e.g., PostgreSQL). 
*   Build and integrate with various third-party REST and WebSocket APIs to support platform functionality. 
*   Develop the core logic for user management, business rules, and other essential platform features. 
*   Write clean, maintainable, and well-tested TypeScript code. 
*   Collaborate with the team to define and ship features in a fast-paced, agile environment. 
*   Ensure the application is optimized for performance, scalability, and low latency. 

Required Qualifications & Skills (Must-Haves):
*   2+ years of professional experience in backend software development. 
*   Strong proficiency in Node.js and the modern TypeScript ecosystem. 
*   Proven, hands-on experience building applications with the Nest.js framework. 
*   Solid experience with relational databases and deep expertise using Prisma as an ORM. 
*   Expirience with message broker technologies (we use BullMQ) 
*   Demonstrable experience designing and consuming complex third-party APIs (REST, WebSocket). 
*   Proficiency with Git and modern development workflows. 
*   A proactive and independent mindset, with strong problem-solving skills suitable for a remote, fast-paced contract role. 

Preferred Qualifications (Will be a Big Plus):
*   A deep understanding of the Web3 ecosystem and core blockchain principles. 
*   Direct experience with Centralized Exchange (CEX) APIs for fetching order books, managing trades, and handling real-time market data. 
*   Experience with Decentralized Exchanges (DEXs), including a solid understanding of how  Automated Market Makers (AMMs) work. 
*   Hands-on experience with Web3 libraries like Ethers.js for interacting with the blockchain. 
*   Familiarity with containerization technologies (Docker)  
*   Previous experience in a FinTech or trading environment. 

What We Offer:
*   Competitive compensation. 
*   A fully remote and flexible work environment. 
*   The opportunity to work on a high-impact, greenfield project with a modern tech stack. 
*   A focused and collaborative team culture.
 

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:
— 1+ year of commercial experience specifically in Web3/blockchain development
— 2+ years of experience in back-end development overall
— Node.js, Nest.js
— MSSQL, MySQL, PostgreSQL
— RabbitMQ, Redis Cache, BullMQ
— JIRA, Gitflow
— Hands-on experience with EVM-based blockchains (Ethereum, Polygon, BSC, etc.)
— Solid understanding of EVM architecture and smart contracts (Solidity)
 
Tech stack:
— Node.js, Express, Nest.js, Microservices, Reddis, RabbitMQ;
— MYSQL, MSSQL, PostgreSQL;
— TheGraph (Subgraph), Moralis, Alchemy, Infura, 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)

Will be a huge plus:
— Web3/Ethers libraries;
— React development experience;
— Experience with DEX/CEX integration (Uniswap, PancakeSwap, Binance API);
— Solidity / Hardhat / Foundry.

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 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.

Location: Remote

Start Date: ASAP (As Soon As Possible)

Please note: This is a contract position with an immediate start date. We are looking for a candidate who can quickly integrate into our team and begin contributing from day one.

About Us

TechChain Solutions is a dynamic technology firm focused on building high-performance financial platforms. We create sophisticated tools that empower users to navigate complex market environments with speed and reliability. Our team is driven by innovation, and we are currently developing a new trading platform from the ground up.

The Role 

We are seeking a skilled Middle Nest.js Developer to join our core backend team. You will step into a project with a well-structured, high-quality codebase and play a key role in implementing complex business logic within our microservices architecture.

You will work with a high-quality codebase and contribute to the development of backend services that power trading strategies. The main focus of this role is implementing and optimizing automated trading logic and bots — experience with exchange APIs is welcome, but not the core requirement.

Key Responsibilities:

• Develop and maintain backend services using Nest.js and TypeScript.
• Implement and optimize trading logic and automation flows, including position management, order execution, and strategy coordination.
• Work with PostgreSQL and Prisma ORM to manage trading data and system state.
• Collaborate with the team to design and evolve the system architecture for scalability and performance.
• Ensure reliable background processing using BullMQ or similar message broker tools.

• Analyze and improve performance of automated trading logic, reduce latency, and prevent edge-case failures.

   

Required Qualifications & Skills:

• 2.5+ years of backend development experience with Node.js and TypeScript.
• Strong practical experience with Nest.js framework.
• Solid understanding of microservice architecture and clean code principles.
• Experience working with relational databases (PostgreSQL) and Prisma ORM.
• Hands-on experience with trading bots (CEX or DEX), or deep understanding of on-chain logic for DEX platforms.
• Familiarity with order types (Limit, Market), order books, and automated trading systems.
• Proficiency with Git and collaborative development workflows.

• Experience with BullMQ or similar message queue tools.

   

Nice to Have:

• Previous experience integrating with exchange APIs (CEX or DEX), even if not the core focus.
• Understanding of web3 principles, smart contracts, and on-chain transaction workflows.

• Experience in the crypto or fintech space.

   

What We’re Looking For:

• You’ve built or contributed to automated trading bots, even on side projects.
• Or — you have a strong grasp of DEX logic and know how wallets, smart contracts, and transaction signing work.
• You care about code quality and write maintainable, production-ready systems.

• You’re proactive and enjoy solving complex problems in fast-paced environments.

   

What We Offer:

- Competitive compensation.

- A fully remote and flexible work environment.

- The opportunity to work on a high-impact, greenfield project with a modern tech stack.

- A focused and collaborative team culture.

About the job

Software Development Team Lead – Drive Innovation and Growth

About Exactius

Exactius partners with businesses to solve complex digital marketing challenges and drive ambitious growth. We bring executive leadership and cross-functional execution teams that strategize, execute, and deliver results. Our teams include performance marketing CMOs, campaign and CRM managers, conversion and product managers, data scientists, developers, and creative experts. Supported by proprietary technology for advanced analysis and real-time optimization, Exactius operates as an extension of your internal teams, focused on one goal—faster and more profitable growth.

About Violet Growth

Violet Growth is an AI-powered growth platform that helps businesses unlock their full potential through real-time analytics, advanced attribution models, and strategic advisory services. We

bridge the gap between data and decision-making, enabling companies to scale smarter.

The Role

We are looking for a Software Development Team Lead to oversee the technical direction of our platform while remaining hands-on in development. This role requires a strong leader and developer who can mentor a remote team while designing and delivering scalable, data-driven solutions. You will drive the development of real-time analytics features, advanced attribution

models, and seamless data integrations, ensuring technical excellence at every step.

Key Responsibilities

Leadership & Mentorship

• Lead and mentor a team of developers in a remote, agile environment.
• Foster a culture of collaboration, accountability, and continuous learning.
• Provide hands-on technical guidance and coaching.

Hands-On Development

• Designed and developed scalable web applications using Node.js, NestJS, ReactJS, Next.js, and Google Cloud Platform.
• Implement key features, optimize platform performance, and ensure reliability.
• Contribute to the codebase, setting high-quality standards for the team.

Product Development

• Work closely with the product team to develop features aligned with business objectives.
• Oversee the implementation of real-time analytics, attribution models, and AI-powered insights.
• Ensure platform scalability and maintainability.

Technical Execution

• Design, develop, and test scalable applications.
• Integrate and optimize data pipelines for real-time insights.
• Manage performance optimization efforts.

Process & Innovation

• Establish best practices for coding, testing, and documentation.
• Oversee sprint planning, code reviews, and CI/CD workflows.
• Research emerging technologies and contribute to architectural decisions.

What You Bring

• 5+ years of full-stack development experience.
• Strong expertise in front-end and back-end development.
• Proficiency in relational databases, CI/CD, and agile methodologies.
• Leadership experience, mentoring developers and driving best practices.
• Experience working closely with design teams and tools like Figma.
• Exceptional verbal English communication skills.
• Comfort working in a remote, fast-paced environment.

What We Offer

• A collaborative and innovative work environment.
• The opportunity to work on cutting-edge AI-powered growth technologies.
• Career development and leadership opportunities.
• A flexible, remote work setup supporting work-life balance.

Are you ready to lead and innovate? You can apply now or share this opportunity with someone who might be a great fit.

#Hiring #SoftwareDevelopment #TeamLead #AI #GrowthTech #RemoteWork

About Us:
We're an ambitious marketing technology company building a next-generation AI-powered marketing platform. As we scale our innovative product, we're looking for a skilled Node.js Backend / Fullstack Engineer to join our growing team.

What You’ll Work On:
You’ll play a key role in shaping and scaling core infrastructure for our platform. This includes working on:

• Authorization and authentication systems
• Robust user management modules
• Asynchronous backend architecture
• Integrating and scaling with a vector database

• Supporting the foundation for AI-driven marketing services

   

Tech Stack Highlights:

• Node.js
• PostgreSQL / Vector DBs (e.g., Pinecone, Weaviate, etc.)
• REST/GraphQL APIs
• AWS / GCP

• Optional: React or other frontend frameworks (for Fullstack role)

   

What We’re Looking For:

• 3+ years experience with backend development using Node.js
• Solid understanding of asynchronous architecture patterns
• Experience designing scalable APIs and working with relational databases
• Familiarity with modern authentication and authorization best practices

• Bonus: exposure to vector databases or AI/ML platforms

   

Nice to Have:

• Experience or interest in AI-powered applications
• Frontend experience (React, Next.js, etc.) for fullstack flexibility

• Experience in marketing technology or SaaS platforms

   

Why Join Us?

• Work on a cutting-edge product from the ground up
• Influence key architectural decisions
• Collaborate with a small, talented team
• Flexible remote work and competitive compensation