Open positions we are hiring

We’re looking for a Middle Solana Developer with 2+ years of commercial experience who confidently builds on-chain programs in Rust with Anchor, thinks in accounts / PDAs / CPIs, works with SPL and Token-2022, Metaplex, integrates smart contracts with a TypeScript frontend via web3.js or Umi, writes tests, and runs a local validator. Strong focus on compute budget optimization and priority fees, baseline security and audit mindset, clean IDL/versioning, and the ability to set up indexing and monitoring. We expect ownership, initiative, clean code, and responsibility for results with the product team.

Responsibilities:

• Design and develop on-chain programs in Rust with Anchor
• Account model, PDAs, CPIs, SPL Token and Token-2022
• dApp integration: TypeScript, @solana/web3.js or Umi
• Anchor/TS tests, local Solana validator, code reviews
• Compute budget & priority fees, ALT, monitoring, and security

Requirements:

• 2+ years of commercial Solana development
• Rust, Anchor, Borsh, IDL, Solana CLI, test-validator
• Strong TypeScript, web3.js or Umi, Mocha/Jest
• Experience with Metaplex Core/NFT and compressed NFTs (Bubblegum)
• Understanding of CPIs, rent exemption, seeds, and Anchor constraints

Nice to have:

• Solita, Seahorse, Shank, Jito, Helium priority fees
• RPC providers, indexing, monitoring experience
• Smart contract audits and threat modeling

We’re looking for a Middle+ Front-End Developer who is confident with React, TypeScript, and Next.js (App Router, SSR/SSG/ISR), turns Figma designs into production-ready UIs, builds solid state and REST/GraphQL integrations, and cares about performance. We expect ownership, clean code, ability to write tests, and to deliver features from idea to release. Format: part-time or project-based, fully remote.

Responsibilities:

• Build interfaces with React + TypeScript + Next.js
• SSR/SSG/ISR, App Router, server components
• REST/GraphQL integration, forms and state management
• Figma-to-code, responsive layout and accessibility

Requirements:

• 2+ years of commercial React + TypeScript
• Next.js 13/14, deployment experience (Vercel)
• TanStack Query, Zustand/Redux
• Tailwind or CSS-in-JS, shadcn/ui
• Strong Git, code reviews, CI/CD

Nice to have:

• Web3 libraries (Wagmi/RainbowKit)
• i18n, analytics, A/B experiments
• Playwright/Cypress, Storybook

We’re looking for a Middle Back-End Developer (Node.js, TypeScript, NestJS) who designs reliable REST/GraphQL APIs, works confidently with PostgreSQL and Prisma or TypeORM, uses Redis and queues, writes unit & e2e tests, and keeps security and performance in mind. We value ownership, responsibility, ability to decompose tasks, and clear documentation. Bonus: blockchain projects, payment integrations, and monitoring.

Responsibilities:

• Design and implement REST/GraphQL APIs with NestJS
• Module architecture, DI, guards, interceptors, pipes
• External integrations, webhooks, queues
• PostgreSQL, Prisma or TypeORM, migrations
• Redis caching, rate limiting, logging and configuration
• Jest tests, e2e tests and code reviews
• Performance and security, RBAC, OWASP mindset

Requirements:

• 2+ years with Node.js and TypeScript
• Production experience with NestJS
• SQL and query optimization
• Git and PR workflow

Nice to have:

• Kafka or RabbitMQ, BullMQ
• Microservices and event-driven architecture
• gRPC and WebSocket
• Stripe/PayPal, OAuth2, JWT
• Web3 integrations

We’re looking for a Middle+ Full-Stack Developer who can deliver features end-to-end: backend on NestJS (TypeScript) + PostgreSQL (Prisma or TypeORM), Redis caching, OAuth2 or JWT auth; and frontend on Next.js (React) with App Router, SSR/SSG, and REST/GraphQL integrations. We value clean code, Jest tests, CI/CD, Docker, attention to security and performance, and the ability to take requirements from Figma to release. Format: part-time or project-based.

Responsibilities:

• End-to-end development with NestJS and Next.js
• REST/GraphQL APIs, integrations, queues
• SSR/SSG/ISR, App Router, server components
• PostgreSQL, Prisma or TypeORM, migrations
• Authentication (OAuth2/JWT), RBAC, security practices
• Jest tests and e2e, CI/CD

Requirements:

• 2+ years with React + TypeScript, production Next.js
• 2+ years with Node.js + NestJS
• PostgreSQL, Redis, caching and rate limiting
• Git, code reviews, documentation

Nice to have:

• Web3 integrations
• WebSockets, gRPC, Stripe/PayPal
• Kafka or RabbitMQ, BullMQ
• Prometheus, Grafana, Sentry

We’re looking for a Middle Solidity Developer (2+ years) who builds reliable EVM smart contracts, integrates them with TypeScript-based web apps, writes tests, and takes ownership of results with the product team.

Responsibilities:

• Develop and review Solidity 0.8+ contracts (ERC-20/721/1155, EIP-712/permit).
• Integrate with web apps (Node.js, React): ABI, methods, events, signing flows.
• Testing: unit, negative, fuzz/invariants (Foundry/Hardhat), gas reports.
• Deploy & verify, support releases in testnets and L2s.
• Work with product: clarify requirements and deliver outcomes.

Requirements:

• 2+ years of commercial EVM smart contract development with on-chain examples (Etherscan).
• Strong Solidity; understanding of calldata/memory/storage, events, custom errors.
• Security: reentrancy, CEI, access control, roles/pausable patterns.
• Testing and deployment experience: Foundry or Hardhat.
• Ownership, initiative, clean code, clear communication.

Nice to have:

• Gas optimization; ability to read Yul/inline assembly.
• Upgradeable contracts (UUPS / EIP-1967), migrations.
• ERC-4337 (Account Abstraction), ERC-4626, Chainlink/Gnosis Safe.
• Audit fixes, CTF/bug bounty participation.

We’re looking for an AI Engineer with 2+ years of commercial experience specializing in one or more areas: NLP/LLMs, computer vision, video, and multimodal pipelines. Focus: fast prototypes and production delivery.

Responsibilities:

• Research and prototype models in your specialization
• Data preparation and training
• Inference and product integration
• Optimize performance of models and services
• Build and maintain Python services for AI and multi-agent systems
• Create and maintain REST APIs for internal/external communication

Requirements:

• 2+ years of commercial development
• Python, PyTorch
• FastAPI
• Docker
• OpenCV, torchvision
• Quantization, LoRA/QLoRA

Nice to have:

• Diffusers, Stable Diffusion
• CLIP, SAM
• Whisper, OCR tools (Tesseract/PaddleOCR)
• MLflow, Weights & Biases
• Airflow/Prefect

We’re looking for a Security Specialist who will build secure-by-design practices and own audits and protection of our solutions across the entire SDLC.

What you will do:

• Audit smart contracts (Solidity/Vyper, Rust for Solana, etc.): manual review, static/dynamic analysis, threat modeling, test scenarios, and PoC exploits.
• Identify and prevent typical Web3 risks.
• Set up formal verification / fuzzing for contracts.
• Perform security reviews of exchange-related flows.
• Ensure security of dApps and backend APIs.
• Cover OWASP Top 10 / ASVS for the Web2 part.
• Embed Secure SDLC practices.
• Telegram Mini Apps security: validate initData, verify domain/signatures, protect payment flows, configure CSP.
• Monitoring and incident response.
• Enable the team: PR blitz reviews, guidelines, workshops, internal consulting.

Requirements:

• 2+ years in security (ideally with some Web3) and/or public audits/reports.
• Strong EVM / smart contract knowledge (Solidity/Vyper) + at least one non-EVM platform (Solana/Move is a plus).
• Fuzzing / symbolic execution experience and tooling.
• Applied cryptography basics: signatures, multisig, key management, nonce/entropy pitfalls.
• Web app and API pentesting experience (REST/GraphQL), OWASP Top 10 / ASVS, SSRF/XSS/IDOR/deserialization, etc.
• OAuth2/OIDC/JWT best practices, session management, WebAuthn/2FA.
• Cloud security, containers/orchestration (Docker), IaC (Terraform), CI/CD security.
• Ability to write clear reports, PoCs, and developer-friendly recommendations.

Nice to have:

• Public audit reviews/reports; CTF/bug bounty participation.
• MEV / anti-frontrun strategies, private mempools, role/ownership separation (EIP-1967/2535, etc.).
• Production KMS/HSM/MPC, withdrawal policies, anomaly monitoring.
• Security in the Telegram ecosystem (bots, mini apps, payments) and browser-based game engines.
• Certifications: OSCP/OSWE, eWPT/eWPTX, SANS/GIAC, ConsenSys/CEW/SMC (optional).

We’re looking for a Middle QA (2+ years) who can spot ambiguities and gaps at the requirements stage, and later thoroughly test web apps, crypto services, dApps, Telegram Mini Apps, and browser games against specs — especially on-chain/off-chain scenarios, payments, orders, and fees.

Responsibilities:

• Review and clarify requirements, user flows, acceptance criteria
• Create checklists and test cases; prioritize coverage
• Manual testing of web and Mini Apps on desktop and mobile
• Validate business logic: statuses, limits, fees, edge cases
• Test APIs and integrations (wallets, providers, nodes)
• Collect artifacts: logs, steps, screenshots/video; write high-quality bug reports

Requirements:

• 2+ years in QA for web products; strong test design skills
• REST/WS API experience, DevTools and Postman
• Ability to read specs and raise risks/questions clearly
• Basic blockchain understanding: networks, transactions, signatures, block explorers
• Accuracy, attention to detail, ownership of release quality

Nice to have:

• Experience with CEX/DEX, DeFi, or smart contracts
• Basic Solidity/Rust reading ability
• UI/API automation skills (e.g., Playwright)
• Testnets and forks; modeling edge cases

We’re looking for a Middle BA (2+ years) to bridge business and engineering: formalize and document requirements, describe processes and user scenarios, write clear specs, and support the project end-to-end through release: manage changes, prioritize backlog, collaborate with dev/QA/design, participate in demos and acceptance, help with launch and metrics.

Responsibilities:

• Run interviews/workshops; elicit and prioritize requirements
• Describe business processes and user flows; model in BPMN/UML
• Write specs: functional/non-functional requirements, acceptance criteria
• Break down into epics and user stories; maintain a current backlog
• Create prototypes in Figma/Miro; align with the team
• Describe integrations and APIs; interactions with external services
• Maintain artifacts in Confluence/Jira; ensure traceability
• Support delivery to release: clarify requirements, change management, UAT and acceptance
• Participate in demos, launch, metrics analysis, and improvements

Requirements:

• 2+ years as a BA in product or outsourcing teams
• Experience with web apps/bots/services; crypto/Web3 is a plus
• Ability to write clear specs and acceptance criteria
• BPMN/UML knowledge; experience documenting processes/system interactions
• Agile (Scrum/Kanban): user stories and backlog management
• Tools: Jira, Confluence, Figma/Miro; accurate documentation
• Web architecture basics: REST/JSON, webhooks, integrations
• English for documentation and communication

Nice to have:

• Smart contracts, dApps, exchanges, trading bots
• Understanding of EVM/Solana and crypto security aspects
• Basic SQL and analytics; product metrics
• OpenAPI/Swagger specs; integration SLAs
• Discovery/presales participation and effort estimation with the team
• Telegram Mini Apps/bots and browser games experience