Jobs at Djinni

About ChatRevenue.ai 

ChatRevenue.ai was founded by Ratmir Timashev (founder of Veeam) and Vlad Voskresensky (founder of Revenue Grid) to create the next generation of CRM systems.  

We’re building an AI-native CRM platform that completely redefines how sales automation works.  
By structuring data for intelligent automation, we enable agentic AI to design workflows, assist Sales Leaders and Reps in real time, and generate predictable sales funnels – all through a simple, chat-driven interface.  

Our mission: to build a CRM that works for User, not the other way around. 

About the role 

We are looking for a Principal Backend Engineer with strong Python experience and a proven track record of building and owning production backend systems. 

This is a hands-on engineering role focused on: 

• Python backend 
• FastAPI 
• Data-heavy systems 
• AI / LLM product features 
• System architecture and scalability 

We are looking for someone who can take ownership of a backend domain, make technical decisions, and build reliable systems from idea to production. 

What you will do 

• Design, build, deploy, and maintain core backend services using Python and FastAPI 
• Own backend architecture, data flows, and technical decisions in your domain 
  Build and scale data-intensive systems, integrations, and pipelines 
• Work on AI / LLM-driven product features together with the engineering team 
• Improve system performance, scalability, reliability, and observability 
• Contribute to engineering practices: testing, CI/CD, security, and code quality 
• Work closely with product and engineering to deliver high-impact features 

What we are looking for 

• 7+ years of hands-on backend development experience 
• Strong commercial experience with Python in production 
• Python should be your primary backend language 
• Strong experience with FastAPI, APIs, Docker, Git, and CI/CD 
• Experience owning backend systems end-to-end: architecture, performance, data, reliability 
• Strong knowledge of PostgreSQL and data-heavy systems  
• Experience building distributed, scalable, or high-load systems 
• Good understanding of system design and performance optimization 
• Ability to work with ambiguity and take ownership without micromanagement 
• High ownership, independence, and product mindset 

Nice to have 

• Experience integrating LLMs / AI into backend systems 
• Experience with RAG, embeddings, vector databases, or AI assistants 
• Experience with Kafka, Azure Event Hub, or other event-driven systems 
• Experience with Kubernetes and cloud infrastructure, especially Azure 
• Experience building ETL / ELT pipelines 
• Experience working with structured and unstructured data 
• Production observability, tracing, monitoring, and optimization experience 

This role is likely a strong match for people who 

• Enjoy owning backend systems end-to-end, not just implementing isolated tasks 
• Feel strongest in Python as their main backend language 
• Have worked on production systems where reliability, performance, and scale matter 
• Want to have direct influence on technical decisions and architecture 
• Are comfortable working in an early-stage, high-ownership environment 

What we offer 

• Remote-first setup 
• Flexible schedule aligned with European time zones 
• A core engineering role in an AI-native product 
• Direct influence on technical decisions and architecture 
• Real ownership and visible product impact 
• Opportunity to grow into technical leadership / domain ownership 

If you have strong Python backend fundamentals, experience owning production systems, and interest in AI-native products, we’d love to talk. 

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.
• Minimum of two years of experience in React.JS development.
• Experience with Sequelize, PostgreSQL, database design, microservices.
• Test automation coverage.
• Understanding of CI/CD.
• Git branching strategies.
• Scrum Agile principles and processes.
• English level - Intermediate and higher.

 Nice to have:

• AI-minded engineering mindset – ability to creatively apply AI tools and approaches to accelerate development and problem-solving.
• Experience using Cursor or AI-powered development workflows.
• Passion for continuous learning and exploring emerging technologies.

Our tech stack: microservices, Node.JS, React.JS, PostgreSQL, Kubernetes, AWS.

We work with startups and established companies to create products in healthcare, fintech, eCommerce, and AI. This role offers real variety — new domains, evolving challenges, and steady professional growth instead of being locked into a single legacy system.

If you’re motivated by fast learning and building features that go live, this might be the right place for you.
 

What You'll Do

• Design and implement scalable backend solutions and contribute to architecture decisions
• Own features end-to-end — from technical discussion to production deployment
• Work closely with the client’s team on project tasks in English
• Optimize performance and improve existing systems
• Take responsibility for production stability and code quality

What We Work With

⚡ Python, FastAPI, Django, Pydantic, PostgreSQL, uv, Ruff

Gets You Extra Points

• Confident communication skills for requirement clarification
• Familiar with SQLModel, Alembic
• Used AI coding tools (Cursor, Claude Code) in daily workflow
• Practical experience working with AI/LLM integrations in real projects
• Experience working on production-ready applications
• Experience with full-stack development using React

What You Bring

• 1+ years of commercial backend development experience
• Strong knowledge of Python
• Solid understanding of REST APIs
• Experience working with SQL databases
• Ability to work independently and take ownership
• English: Upper-Intermediate (B2+) or higher — confident spoken and written communication with clients

What You Get

Work & Growth:

• Fully remote, flexible hours
• Structured code reviews
• Senior engineers who help you level up
• English practice sessions

Compensation:

• Salary in USD
• Performance reviews twice a year
• 15 days paid vacation + sick leave

AppsFlyer is known for its massive backend production.
At any given moment thousands of servers are consuming 150+ billion mobile app events, crunching our users’ data, serving requests and communicating on a massive scale.

To maintain the universe we call AppsFlyer, we practice modern production operations with a complete self-serve CI/CD platform, a highly integrated observability stack for our micro-services, backends, and infrastructure, a culture of ownership and eagerness for quality.

The Analytics group is responsible for showing our clients the stories their data is telling. Through complex aggregation, mission tailored analytical databases and carefully crafted APIs we are able to provide slice and dice analysis in our beautiful dashboards and through the use of external integrations.
Our group mixes disciplines from back-end, data, AI and front-end engineers and we’re looking for great Data-Oriented Backend Engineer developers that are passionate about what they do, who want to dive into the worlds of big data, microservices and production management at our scale, to help us reach our vision and goal: to be the best analytics suite in our business market.

What you’ll do

• Develop end-to-end, both client-facing and data infrastructure features, from data processing to database choice and modeling implementation
• Collaborate with product managers and software engineers to deliver complex products.
• Analyze and improve performance, scalability and stability of our systems, environments and tools.
• If you’re up to the challenge — Speak at meetups, write blog posts, speak at conferences, contribute to existing open source projects and release new open source software.

What you have

• 3+ years of development experience with a passion for excellence
• Experience in data engineering with a focus on Apache and Scala-Spark / py-spark)
• Experience with high throughput, low latency, mission-critical distributed systems
• Great communication skills in English
• B.Sc. in Computer Sciences or an equivalent.

Bonus Points

• Experience with large-scale production databases
• Experience with Airflow
• Strong server-side skills.
• Experience production grade BigQuery ETL and DBs.
• Experience with production grade GO BE services.
• Experience with production grade Clojure BE services.
• An “AI mindset”: stays up to date with the AI landscape, explores tools like Cursor or GitHub Copilot, and looks for ways to boost productivity through AI
• Recommended by an AppsFlyer employee

Benefits Package includes:

• Health Insurance
• Paid Unlimited Vacation Days + all national holidays + additional recharge days
• Meals Reimbursement
• Sport Reimbursement
• Breakfast in the office
• Mental health program
• Team building, happy hours, and other team activities
• Paid sick days
• Snacks, fruits & ice cold beer
• All new team members are provided with a brand-new Mac laptop with 2 monitors and a Starter package

As a global company operating from 25 offices across 19 countries, we reflect the human mosaic of the diverse and multicultural world in which we live. We ensure equal opportunities for all of our employees and promote the recruitment of diverse talents to our global teams without consideration of race, gender, culture, or sexual orientation. We value and encourage curiosity, diversity, and innovation from all our employees, customers, and partners.

“As a Customer Obsessed company, we must first be Employee Obsessed. We need to make sure that we provide the team with the tools and resources they need to go All-In.” Oren Kaniel, CEO

Many significant top-tier customers and partners consume their AppsFlyer’s data via various interfaces on a considerable scale. One of these interfaces is our Data Warehouse, which stores colossal amounts of data produced by all our product teams. On top of that, we develop the business service layer that serves our customers. Being in the front on such a scale requires being at the top of everything the team does — from complicated business logic through interesting technical challenges that have a massive impact on the performance and cost of our data pipelines to the immediate feedback we receive from our clients when a new feature or improvement is released.

The team constantly collaborates with the Platform and Business to provide the most efficient solution for our data exposure. The collaboration includes a deep understanding of our technology, coping with the rising scale, having POCs for a never-ending effort to find the next best technology available to benefit our customers and us, and more.

Some of the technologies we currently use:

• Java
• Clojure
• GCP & AWS hosted solutions
• K8s
• Kafka
• DataDog

What you’ll do:

• Be a part of the team that owns and evolves AppsFlyer’s Data Warehouse
• Own and develop AppsFlyer products and features end-to-end — from design to production
• Work with petabytes of data flowing through AppsFlyer pipelines
• Solve diverse, complex problems at scale, with low clarity of the solution approach
• Collaborate with Product Managers and Software Engineers to deliver value to customers
• Analyze and improve the performance, scalability, and stability of AppsFlyer’s products, environments, and tools
• Continuously learn and evaluate new technologies in the everlasting effort to perfect our products and adapt to the ever-growing scale

What you have:

• 3+ years of development experience with a passion for excellence
• Experience in JVM languages
• Hands-on background with production systems
• Experience in building APIs for server-client applications
• Strong SQL knowledge
• Ability to grasp new languages, systems, and frameworks fast
• A team player with the drive to get things done and lead others along the way
• Good communication skills, spoken and written English

Bonus points:

• Experience in Clojure
• Exposure to large-scale distributed databases or enterprise data warehouses (BigQuery, Snowflake, etc.)
• Software system design experience
• Experience in building ETLs using Spark Scala
• Familiarity with the Google Cloud Platform
• B.Sc. in computer science or equivalent
• Recommended by an AppsFlyer employee

Benefits Package includes:

• Health Insurance
• Paid Unlimited Vacation Days + all national holidays + additional recharge days
• Meals Reimbursement
• Sport Reimbursement
• Breakfast in the office
• Mental health program
• Team building, happy hours, and other team activities
• Paid sick days
• Snacks, fruits & ice cold beer
• All new team members are provided with a brand-new Mac laptop with 2 monitors and a Starter package

As a global company operating from 25 offices across 19 countries, we reflect the human mosaic of the diverse and multicultural world in which we live. We ensure equal opportunities for all of our employees and promote the recruitment of diverse talents to our global teams without consideration of race, gender, culture, or sexual orientation. We value and encourage curiosity, diversity, and innovation from all our employees, customers, and partners.

“As a Customer Obsessed company, we must first be Employee Obsessed. We need to make sure that we provide the team with the tools and resources they need to go All-In.” Oren Kaniel, CEO

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 an AI product company in advanced manufacturing.
• Be part of a research focused team.

Responsibilities: 

• Research, test and develop generative AI based solutions.
• Collaborate with mechanical engineers to enhance your research.
• Design and implement end-to-end AI solutions that integrate with existing systems.
• Collaborate with software engineers and product teams to understand business needs and translate them into technical solutions. 
• Research emerging AI trends and techniques to continually improve the AI solution offerings. 
• Prepare and maintain documentation on design, code, and processes to ensure organizational knowledge retention. 
• Monitor and evaluate the performance of AI systems in production, identifying areas for improvement or further development.

You will be joining a well-versed team if you have:

• Bachelor’s or Master’s degree in Computer Science, Engineering, Mathematics, or a related field. 
• Proven experience in developing generative AI or machine learning models.
• Commercial experience in using large language models.
• Programming skills in languages such as Python or JavaScript.
• Familiarity with databases (SQL, NoSQL). 
• Solid understanding of deep learning, NLP, computer vision, or other specialized areas within AI is a plus. 
• Excellent problem-solving skills and the ability to work in a fast-paced, collaborative environment.
• Good communication skills and the ability to translate complex technical concepts to non-technical stakeholders. 
• Commitment to continuous learning and development in the field of AI and emerging technologies.

AppsFlyer builds technology at massive scale, powering measurement, analytics, and fraud prevention across billions of mobile events every day.

Join AppsFlyer’s Security SDK Team, responsible for protecting the integrity and authenticity of our mobile SDKs across Android and iOS. The team works on securing SDK communication, improving SDK resilience, and building trusted solutions that run on billions of devices worldwide.

This is a great opportunity for engineers who are passionate about mobile development and interested in security, low-level systems, and reverse engineering.

We work with Android and iOS platforms, native components (C/C++), and cloud-based infrastructure, while encouraging continuous learning, technical growth, and hands-on research.

What you’ll do

• Develop AppsFlyer SDK features end-to-end — from design to production.
• Build and improve protection mechanisms for Android SDKs (primary focus) and iOS SDKs.
• Help improve SDK resilience against tampering and abuse.
• Collaborate with Product Managers and Engineers across mobile and backend teams.
• Participate in research, debugging, and investigation of mobile security challenges.
• Learn and work with low-level mobile technologies, native code, and reverse engineering tools.
• Work in an Agile environment with engineers across mobile, backend, and product.

What you have (Must)

• B.Sc. in Computer Science or equivalent experience.
• 1–2 years of software development experience, preferably in Android development.
• Experience developing mobile applications or SDKs.
• Good understanding of Android fundamentals and application architecture.
• Strong debugging and problem-solving skills.
• Curiosity and motivation to learn security and low-level technologies.
• Very good English communication skills.
• Strong ownership mindset and willingness to learn and grow.

Bonus Points

• Experience with Kotlin, Java, or Android SDK development.
• Familiarity with C/C++ or mobile native development.
• Interest in mobile security, reverse engineering, or runtime internals.
• Familiarity with tools such as Frida, Ghidra, or IDA.
• Experience with Gradle, CMake, or CI/CD systems.
• Familiarity with AWS or backend services.
• Exposure to LLVM/Clang or build toolchains.

Benefits Package includes:

• Health Insurance
• Paid Unlimited Vacation Days + all national holidays + additional recharge days
• Meals Reimbursement
• Sport Reimbursement
• Breakfast in the office
• Mental health program
• Team building, happy hours, and other team activities
• Paid sick days
• Snacks, fruits & ice cold beer
• All new team members are provided with a brand-new Mac laptop with 2 monitors and a Starter package

As a global company operating from 25 offices across 19 countries, we reflect the human mosaic of the diverse and multicultural world in which we live. We ensure equal opportunities for all of our employees and promote the recruitment of diverse talents to our global teams without consideration of race, gender, culture, or sexual orientation. We value and encourage curiosity, diversity, and innovation from all our employees, customers, and partners.

“As a Customer Obsessed company, we must first be Employee Obsessed. We need to make sure that we provide the team with the tools and resources they need to go All-In.” Oren Kaniel, CEO

The ROI360 organization’s goal is to help user acquisition managers and monetization managers optimize the business performance of their mobile marketing campaigns. We help our customers understand the real value (value for money) of their mobile marketing efforts.

To achieve this goal, we build a distributed SaaS platform to collect, normalize, index, and serve cost and revenue data from 100+ marketing platforms such as Facebook, Google, Ironsource, and more — at scale.

What you’ll do:

• Develop and enhance our data collection platform.
• Solve diverse, complex problems at a large scale.
• Collaborate with Product Managers and Software Engineers to deliver value to customers.
• Analyze and improve the performance, scalability, and stability of AppsFlyer’s products, environments, and tools.
• Continuously learn and evaluate new technologies in the effort to perfect our products and adapt to the ever-growing scale.
• Take an active part in our on-call cycle and monitor the system.

What you have:

• 3+ years of backend engineering experience with a passion for excellence.
• Solid knowledge in: Kafka, SQS, K8S, Postgres, and event-driven systems.
• Experience with large-scale SaaS production services and databases.
• Experience with cloud platforms (e.g. AWS, GCP).
• Proficiency and ability to code well in at least one language (Java / Go / Clojure / etc.).
• Proficiency with database technologies such as SQL / Athena / BigQuery.
• A team player with a strong sense of ownership.
• Ability to grasp new languages, systems, and frameworks quickly.
• A drive to get things done, especially as part of a team.
• Ability to dive in quickly to complex systems.
• B.Sc. in Computer Science or an equivalent.

Bonus points:

• Experience in functional programming.
• Hands-on experience with Clojure.

Benefits Package includes:

• Health Insurance
• Paid Unlimited Vacation Days + all national holidays + additional recharge days
• Meals Reimbursement
• Sport Reimbursement
• Breakfast in the office
• Mental health program
• Team building, happy hours, and other team activities
• Paid sick days
• Snacks, fruits & ice cold beer
• All new team members are provided with a brand-new Mac laptop with 2 monitors and a Starter package

Our Culture

As a global company operating from 25 offices across 19 countries, we reflect the human mosaic of the diverse and multicultural world in which we live. We ensure equal opportunities for all employees and promote the recruitment of diverse talents to our global teams without consideration of race, gender, culture, or sexual orientation. We value and encourage curiosity, diversity, and innovation from all of our employees, customers, and partners.

“As a Customer Obsessed company, we must first be Employee Obsessed. We need to make sure that we provide the team with the tools and resources they need to go All-In.”
— Oren Kaniel, CEO

We are building a talent pool of Web3 Frontend Developers for upcoming outstaff projects with international clients 🚀.
 

This is part of our candidate pipeline — there is no specific project at the moment, but once a suitable opportunity becomes available, you'll be matched based on your skills and experience.
 

We're looking for frontend developers who can build dApp interfaces for EVM and Solana products — from wallet connections and transaction flows to DeFi dashboards and protocol UIs.

 

🛠️ Key Responsibilities
 

🔹 Build dApp interfaces using React / Next.js

🔹 Integrate wallets using wagmi, WalletConnect, and wallet adapter libraries

🔹 Work with viem / ethers.js for on-chain reads and writes (EVM)

🔹 Handle async blockchain state with React Query / TanStack Query

🔹 Manage application state using Redux or Zustand

🔹 Build intuitive, reliable UIs for DeFi, NFT, and protocol products

🔹 Collaborate closely with smart contract and backend developers

🔹 Communicate directly with international clients in English

 

📋 Requirements
 

🔹 2+ years of commercial experience with React / Next.js

🔹 Hands-on experience building dApp interfaces (wallet connect, on-chain data, transactions)

🔹 Solid knowledge of wagmi and WalletConnect integration

🔹 Proficiency with React Query / TanStack Query

🔹 Experience with Redux or Zustand

🔹 Understanding of EVM basics (transactions, gas, contract reads/writes)

🔹 Experience with real-time UI reactivity — seamless UI updates after on-chain actions (optimistic updates, event subscriptions, polling)

🔹 Basic understanding of the Solana ecosystem (accounts, transactions, wallet model)

🔹 English: B2+

🔹 Ability to work independently

✨ Nice-to-Haves

🔹 Experience building Solana dApp interfaces (wallet adapter, on-chain reads, transaction flows)

🔹 Understanding of DeFi UX patterns (slippage, gas estimation, token approval flows)

🔹 Experience with TypeScript in large-scale production React codebases

🔹 Exposure to NFT marketplace or on-chain gaming UI

🌱 Why Join Our Talent Pool?

🔹 Real dApp Engineering — interfaces for real users and real protocols

🔹 International Clients — teams across Europe and North America

🔹 Remote & Flexible — outstaff format, async-friendly

🔹 Blockchain-First Team — we speak the same language

🔹 Fast Matching — when the right project appears, we move quickly

✨ Why This Is a Great Opportunity

🔹 Real-world exposure — every project is different: different chains, different protocols, different challenges

🔹 Outstaff done right — we stay involved, support you throughout the engagement, and match you only where your stack truly fits

🔹 Keep growing — instead of running out of things to do at one company, you move to the next challenge

📬 What Happens After You Apply

🔹 Our team reviews your profile within a few business days

🔹 If there's a good fit, we'll schedule a brief intro call — to learn about your background, stack, and what you're looking for

🔹 After the call, you'll join our talent pool and we'll reach out proactively once a matching project comes up

⚠️ Important

🔹 This is a talent pool position (pipeline)

🔹 No specific project at this moment

🔹 You'll be contacted once a suitable opportunity becomes available

At FuturiX Solutions, we connect skilled blockchain engineers with international Web3 clients — matching you to projects where your expertise matters most 🌐⚙️

We are building a talent pool of Solana Developers for upcoming outstaff projects with international clients 🚀.
 

This is part of our candidate pipeline — there is no specific project at the moment, but once a suitable opportunity becomes available, you'll be matched based on your skills and experience.
 

We're looking for developers with hands-on Rust and Anchor experience who understand Solana's execution model and can build reliable on-chain programs and off-chain infrastructure for production systems.

 

🛠️ Key Responsibilities

🔹 Design, develop, and maintain Solana programs using Rust and Anchor

🔹 Work with PDAs, CPI, authority and signer patterns

🔹 Implement proper account validation, ownership checks, and custom errors

🔹 Write TypeScript / Node.js off-chain integration scripts

🔹 Integrate with Solana DeFi protocols: Jupiter, Jito, and others

🔹 Write unit tests on localnet and integration scripts on devnet

🔹 Build off-chain services: WebSocket subscriptions, bots, background workers

🔹 Communicate directly with international clients in English

📋 Requirements

🔹 2+ years of commercial experience with Rust and Solana on-chain development

🔹 Confident use of the Anchor framework

🔹 Solid understanding of the SVM (Solana Virtual Machine) execution model

🔹 Experience with PDAs, CPI patterns, and account validation

🔹 Proficiency in TypeScript / JavaScript for off-chain tooling

🔹 Hands-on experience with solana-web3.js and SPL Token

🔹 English: B2+

🔹 Ability to work independently

✨ Nice-to-Haves

🔹 Experience with Token-2022 (fees, metadata pointer, freeze authority)

🔹 Familiarity with Raydium AMM / CLMM or Meteora

🔹 Hands-on experience with Jupiter or Jito integrations

🔹 Security-aware development mindset

🔹 Prior experience deploying to Solana mainnet

🌱 Why Join Our Talent Pool?

🔹 Real Solana Engineering — production-grade on-chain programs, not demos

🔹 International Clients — teams across Europe and North America

🔹 Remote & Flexible — outstaff format, async-friendly

🔹 Blockchain-First Team — we speak the same language

🔹 Fast Matching — when the right project appears, we move quickly

✨ Why This Is a Great Opportunity

🔹 Real-world exposure — every project is different: different chains, different protocols, different challenges

🔹 Outstaff done right — we stay involved, support you throughout the engagement, and match you only where your stack truly fits

🔹 Keep growing — instead of running out of things to do at one company, you move to the next challenge

📬 What Happens After You Apply

🔹 Our team reviews your profile within a few business days

🔹 If there's a good fit, we'll schedule a brief intro call — to learn about your background, stack, and what you're looking for

🔹 After the call, you'll join our talent pool and we'll reach out proactively once a matching project comes up

⚠️ Important

🔹 This is a talent pool position (pipeline)

🔹 No specific project at this moment

🔹 You'll be contacted once a suitable opportunity becomes available

At FuturiX Solutions, we connect skilled blockchain engineers with international Web3 clients — matching you to projects where your expertise matters most 🌐⚙️

We are building a talent pool of Web3 Backend Developers with EVM expertise for upcoming outstaff projects with international clients 🚀.
 

This is part of our candidate pipeline — there is no specific project at the moment, but once a suitable opportunity becomes available, you'll be matched based on your skills and experience.
 

We're looking for developers who work with Solidity and Node.js / NestJS, understand DeFi protocol logic, and can build reliable on-chain and off-chain infrastructure for EVM-based products.

 

🛠️ Key Responsibilities

🔹 Write, test, and deploy Solidity smart contracts (ERC-20, ERC-721, custom protocols)

🔹 Integrate and build on top of DeFi protocols: Uniswap, Aave, Lido, Chainlink

🔹 Use OpenZeppelin standards and secure contract patterns

🔹 Build off-chain backend services using Node.js / NestJS

🔹 Interact with contracts via ethers.js or viem

🔹 Use Hardhat or Foundry for development, testing, and deployment

🔹 Write unit and integration tests for smart contracts

🔹 Communicate directly with international clients in English

📋 Requirements

🔹 2+ years of commercial experience in Web3/EVM development

🔹 Solid hands-on experience with Solidity

🔹 Proficiency in Node.js / NestJS

🔹 Experience with ethers.js or viem

🔹 Familiarity with Hardhat or Foundry

🔹 Knowledge of DeFi protocols: Uniswap, Aave, Lido, Chainlink

🔹 Understanding of OpenZeppelin contract standards

🔹 English: B2+

🔹 Ability to work independently

✨ Nice-to-Haves

🔹 Familiarity with Layer 2 networks (Arbitrum, Optimism, Base)

🔹 Mainnet deployment experience with high-value contracts

🔹 Multi-sig setup (Gnosis Safe)

🌱 Why Join Our Talent Pool?

🔹 Real Web3 Projects — production-grade smart contracts and backend systems

🔹 International Clients — teams across Europe and North America

🔹 Remote & Flexible — outstaff format, async-friendly

🔹 Blockchain-First Team — we speak the same language

🔹 Fast Matching — when the right project appears, we move quickly

✨ Why This Is a Great Opportunity

🔹 Real-world exposure — every project is different: different chains, different protocols, different challenges

🔹 Outstaff done right — we stay involved, support you throughout the engagement, and match you only where your stack truly fits

🔹 Keep growing — instead of running out of things to do at one company, you move to the next challenge

📬 What Happens After You Apply

🔹 Our team reviews your profile within a few business days

🔹 If there's a good fit, we'll schedule a brief intro call — to learn about your background, stack, and what you're looking for

🔹 After the call, you'll join our talent pool and we'll reach out proactively once a matching project comes up

⚠️ Important

🔹 This is a talent pool position (pipeline)

🔹 No specific project at this moment

🔹 You'll be contacted once a suitable opportunity becomes available

At FuturiX Solutions, we connect skilled blockchain engineers with international Web3 clients — matching you to projects where your expertise matters most 🌐⚙️

Mirko Solutions is an international IT company specializing in web and mobile development for clients in the US, Canada, EU, and Australia. We are growing rapidly and are currently looking for an Project manager (IT) for a new international project.

Job Requirements:

• 1+ year of experience in this position in the field of IT
• English — upper intermediate +
• Strong knowledge of management principles
• Strong relationship building skills
• Proven working experience in project management
• Solid organizational skills including attention to detail and multitasking skills
• Perform risk management to minimize project risks

Responsibilities:

• Management of a development team including remote employees
• Organization of cooperation with the parties involved in the implementation of the project
• Scheduling and monitoring the execution of tasks
• Communication with foreign customers
• Quality control and project execution according to client’s expectations

We provide the following for our employees:

• Competitive salary according to qualification
• Comfortable working environment
• Experienced colleagues
• Opportunity to work with interesting projects,
• Regular performance reviews
• Friendly atmosphere, care for the comfort of professionals

Requirements:

3-5 years embedded firmware development experience with C / C++, Linux / Unix platform;

Experience with ARM/MIPS processors, embedded Linux;

Wireless protocols (802.11);

Strongly need networking skill, OSI model understanding;

Ability to adapt and quickly pick up new technologies;

Ability to work productively and autonomously, whether on a small

team or solo, including the ability to give and receive constructive criticism to team members;

Experience with all phases of the software development life-cycle;

Excellent analytical and problem-solving skills;

Experience with Git, including merging and rebasing;

Experience with bash shell scripting and/or Python;

BS degree in Computer Science, or related engineering degree;

Effective written and verbal communication skills (ENGLISH MANDATORY).

Candidate needs to be in Kyiv (or consider relocation). Hybrid type of work.

Will be a plus:

Experience working with Cross Compilers;

Experience with OpenWRT;

Basic understanding of electronic circuits.

What do we offer:

International work environment and work with global development teams;

Excellent work conditions in an A-Class office (Horizon Park Business Center);

Compensation package matching global standards;

Flexible work hours (as required);

Paid parking, courses, training, conferences and business trips;

Medical insurance;

Free lunches.

https://www.youtube.com/c/UbiquitiInc

Responsibilities:

Managing product development projects;

Planning and coordinating all project activities;

Preparing and organizing the necessary project documentation;

Organizing cooperation with the parties involved in implementing the project;

Leading and motivating the project team and assigning different tasks within the project;

Keeping up with the technological developments and the latest tendencies.

Candidate needs to be in Kyiv (or consider relocation). Hybrid type of work.

Requirements:

3+ years of project management experience in embedded firmware projects;

Experience in IT software development cycle and testing;

Professional interest in IT products, new technologies;

Experience in JIRA will be considered as an advantage;

Strong personality with good negotiation skills;

Experience in problem solving and analyzing information;

Embedded firmware development experience with C / C++, Linux — major plus;

English — mandatory A level

What do we offer:

International work environment and work with global development teams;

Excellent work conditions in an A-Class office (Horizon Park Business Center);

Compensation package matching global standards;

Flexible work hours (as required);

Paid parking, courses, training, conferences and business trips;

Medical insurance;

Free lunches;

Work on leading IT products (software and hardware)

https://www.youtube.com/c/UbiquitiInc

Requirements:

Minimum of 3 years of software development experience

Detailed knowledge of Linux operating system internals

Strong C/C++ language, Bash and debugging skills on embedded systems

Strong networking knowledge

Experience in gateway features development — VPN, firewall, IPv6, QoS, security, Routing, etc.

Bachelor or MS in Computer Science or Electrical Engineering

Will be a plus:

Knowledge of Buildroot / LFS

Knowledge of NOS technology such as ONL / SnapRoute / Cumulus Network / OpenSwitch

Experience with Quagga / FRR

Understanding of dataplane processing and performance enhancement

Knowledge of Broadcom, Arista, Barefoot switch framework

Experience of data center switch development

Experience with BSP and Linux device driver development

Experience with software management process

Good team player who can work both independently and also as a team with ability to take initiative

Ability to organize and prioritize work across several projects simultaneously

Able to think broad and discuss on software architectural level

Aggressive working attitude with great communication skill and curiosity

What do we offer:

International work environment and work with global development teams

Excellent work conditions in an A-Class office (Horizon Park Business Center)

Compensation package matching global standards

Flexible work hours (as required)

Paid parking, courses, training, conferences and business trips

Medical insurance

Free lunches

Responsibilities:

Deliver new upcoming Unifi switch product

Work with hardware team from BSP level up to networking software application level

Communicate with foreign customer closely to implement desired new features and bugfixing

https://www.youtube.com/c/UbiquitiInc