Tetracode

About Tetracode

Tetracode is a boutique product & software development studio that builds MVPs for startups and tech companies worldwide — from idea validation to product launch.

We work with fintech, AI, Web3, IoT, mobility, marketplaces, and software for hardware products.

Our culture is based on:

• open and transparent communication
• a high level of technical and product expertise
• strong ownership and responsibility
• long-term mindset with clients and team members

We are growing and expanding our team — and now looking for an IT Recruiter who will help us attract top-tier talent and build a strong pool of engineers for upcoming products.

What You Will Do

Full-cycle recruitment for IT roles, including:
 

• Analyzing vacancy requirements together with founders / CTO
• Preparing and publishing job descriptions (Djinni, LinkedIn, Telegram, job boards)
• Active sourcing across LinkedIn, Djinni, GitHub, Telegram
• Screening candidates and conducting initial interviews
• Building a long-term talent pool (engineers, PMs, QA, designers, DevOps, mobile developers)
• Coordinating interviews between candidates and internal team
• Maintaining clear and timely communication with all candidates
• Keeping structured reports for every open position
• Recommending improvements for hiring processes and talent pipelines

Key hiring directions:

• Backend / Frontend / Mobile engineers
• DevOps / Cloud engineers
• Blockchain & Web3 developers
• Project / Delivery managers
• UI/UX designers
• Manual & Automation QA
• Fintech engineers (core banking, payments, crypto, compliance)

What We’re Looking For

• 2+ years of experience as an IT Recruiter in outsource/outstaff/product environments
• Strong sourcing skills (LinkedIn, GitHub, Djinni, Telegram)
• Understanding of modern tech stacks (JavaScript/TypeScript, Node.js, React, Swift/Kotlin, DevOps, Web3, etc.)
• Good understanding of how development teams operate
• Experience hiring middle–senior level specialists
• English — Upper-Intermediate (B2)
• Ukrainian — a strong plus
• Highly organized, autonomous and result-driven
• Ability to work independently and take full ownership

What We Offer

Success-fee model (key point):

We offer a flexible payment model, including:

• fixed compensation (negotiable)
• success fee for each closed vacancy

Success fee depends on role complexity and seniority level.

Additionally:

• Direct work with founders and CTO
• Projects in high-tech domains: AI, Web3, fintech, IoT, mobile apps, cloud infrastructure
• Access to a strong senior-level engineering team
• Only meaningful, real, high-impact vacancies — no bullshit roles
• Full autonomy: choose your tools, sourcing approach and workflow
• Opportunity to build the recruiting direction into a full HR/People function
• Participation in top-tier products with EU and US clients
• Flexible schedule, remote work, full trust and ownership

About Tetracode — Why Us
 

We are a senior-level, product-driven team that:

• helps startups validate hypotheses fast and build solid MVP architectures
• creates scalable products ready for growth and market expansion
• has contributed to products that later achieved unicorn-level valuations
• deeply understands fintech technologies — from payments and compliance to crypto wallets, Web3 identity, tokenized assets, AML/KYC flows and banking-grade app security
• builds platforms in crypto banking, DeFi, digital assets, payroll automation, on-chain identity, transaction engines, and more
• combines engineering + business mindset to deliver not only code, but also real business outcomes

Our mission is to share the expertise we gained by launching our own startups and help founders succeed with much higher probability.

Required Skills
 

IT Recruiting • Sourcing • Talent Acquisition • LinkedIn Search • Candidate Assessment • Communication • Tech Terminology • Understanding of Agile teams

Languages

English — B2

Ukrainian — Desired

(Node.js · Fintech · Payments · Blockchain · TON · TRON · High-Load Architecture)


Tetracode is looking for a skilled Backend Technical Lead to join our team. As a Backend Technical Lead, you will lead the architecture, development, and delivery of complex backend systems across fintech, payments, and blockchain environments. You will drive technical decisions, define scalable system architectures, integrate multiple financial rails (fiat + crypto), and ensure reliability, security, and compliance across the entire platform.
This is a leadership role that combines backend engineering excellence, fintech expertise, blockchain integrations, and strong architectural thinking.

Key Responsibilities

1) Architecture & Technical Strategy

 • Design and own end-to-end architecture of distributed backend systems
• Define technical standards, API contracts, service boundaries, and integration patterns
• Build scalable microservice and event-driven systems (Kafka/RabbitMQ/SQS)
• Ensure system reliability, observability, monitoring, and failover strategies
• Transform business requirements into architectural roadmaps and technical documentation
• Validate estimations, perform technical reviews, and guide engineering decisions

2) Backend Engineering Leadership

 • Lead backend development using Node.js, TypeScript, NestJS
• Oversee code quality, design patterns, testing standards, and CI/CD processes
• Build high-load, low-latency services for real-time operations
• Lead refactoring, performance improvements, and infrastructure optimization
• Mentor engineers, guide mid/senior developers, support hiring and onboarding

3) Payments, Cards & Fintech Infrastructure

• Integrate and maintain payment gateways, processors, acquirers
• Work with crypto and fiat rails: cards, SEPA/SWIFT, IBAN accounts, top-ups, payouts
• Build internal financial ledgers, commission engines, fee logic, reconciliation systems
• Implement 3DS, webhook systems with idempotency, and settlement workflows
• Integrate KYC/AML/KYB vendors (Sumsub, Persona, Veriff, etc.)
• Implement anti-fraud, risk scoring, transaction monitoring
• Ensure PCI DSS, GDPR and security compliance

4) Blockchain Integrations (TON, TRON, EVM, Solana)

 • Architect and implement blockchain modules for signing, indexing, and transactions
• Interact with TON (tonweb/blueprint), TRON (TronWeb/TRC-20), EVM (ethers.js), Solana (SPL)
• Build multi-chain wallet logic (custodial + non-custodial flows)
• Work with smart contracts, events, gasless mechanics, fee abstraction
• Implement secure on-chain/off-chain synchronization
• Build indexers, parsers, notification pipelines, VRF/lottery logic if required

5) Security, Compliance & Data Protection

 • Implement secure storage, tokenization, encryption, and key management
• Lead threat modeling and resolve vulnerabilities
• Build complex permission systems (RBAC/ABAC), audit logs, fraud detection
• Ensure compliance with international financial standards
• Coordinate with legal/compliance teams on transaction/AML policies

6) Cross-Functional Leadership & Communication

 • Lead technical communication with clients and stakeholders
• Present architecture decisions clearly and defend technical choices
• Collaborate with frontend, mobile, DevOps, QA, product, and UX teams
• Support sprint planning, roadmap execution, release management
• Ensure alignment between engineering and business goals

Requirements

  Technical Core

• 6+ years of backend development with Node.js
• Expert-level TypeScript
• Deep experience with NestJS and backend enterprise architecture
• Strong understanding of microservices, distributed systems, and event-driven flows
• Experience with SQL/NoSQL (PostgreSQL, Redis, MongoDB)
• Knowledge of queues, schedulers, caching, and horizontal scaling
• Strong DevOps understanding: Docker, CI/CD, containers, cloud services

  Fintech & Payments

• Experience integrating payment providers, on/off ramps, card issuing
• Knowledge of settlement cycles, ledgers, reconciliation, FX conversions

• Understanding of AML, risk monitoring, KYT, compliance frameworks

   

  Blockchain

• Practical experience with TON, TRON, EVM
• Understanding of smart contracts, gas models, event subscription

• Experience building blockchain-enabled backend systems

   

  Security

• Understanding of OAuth2, SSO, JWT, Keycloak/Auth0
• Knowledge of encryption, hashing, HSM-like architectures

• Experience building reliable role/permission systems

   

  Leadership

• Experience managing cross-functional teams
• Strong analytical thinking and ownership mindset
• Excellent communication skills (client-facing)

• English B2+

   

  Will Be a Plus

• Experience with mobile wallet architecture (iOS/Android)
• Understanding of L2 rollups, zk tech, or advanced DeFi mechanics
• Experience with high-load gaming or real-time reward systems

• Knowledge of tokenomics, vesting, staking, DAO modules

   

What we offer

• Technological Challenges: You will participate in exciting technological projects where you can apply your skills and abilities.
• Team Collaboration: You will work in a team of highly skilled professionals who support each other and collectively achieve goals.
• Development Opportunities: We are committed to your professional growth and development. You will have the opportunity to learn and enhance your skills.
• Flexible Working Conditions: We understand the importance of maintaining a work-life balance. You will have the option to choose a flexible work schedule.
• Career Growth: At Tetracode, we support your career growth. You can move up the career ladder, expanding your responsibilities and opportunities.

• Transparent and Competitive Compensation: We recognize that your work and contribution are vital to our success. Therefore, we offer transparent and competitive compensation that reflects your skills, experience, and contribution to the project.

   

  Join Tetracode and become part of our innovative and cohesive team, where exciting challenges and opportunities for your professional growth await you!

Tetracode is currently looking for a skilled Manual QA Engineer passionate about Web3 technologies to join our team. You'll be responsible for testing and ensuring the quality of innovative decentralized applications, crypto wallets, and blockchain integrations.

Responsibilities:

• Collaborate with cross-functional teams to understand product requirements and design test strategies.
• Perform manual testing on applications to ensure they meet specified requirements and standards.
• Identify, document, and report bugs and issues clearly and concisely.
• Analyze test results and provide detailed reports on the quality and stability of the application.
• Work closely with developers to understand application functionality and provide feedback on potential improvements.

Requirements:

• 3+ years of experience in manual testing, with a focus on Web3
• Strong dedication to thorough documentation, including test plans, test cases, checklists, and test execution
• Strong understanding of mobile application testing methodologies and best practices.
• Excellent analytical and problem-solving skills.
• Smoke, Regression, Requirements Resting and functional testing experience.
• Excellent knowledge of Databases, especially PostgreSQL.
• At least an Intermediate level of English or higher.
• Proactive position on issues related to product quality assurance, nice inter-team communication skills
• Understanding the logic of SSO providers: Clerk, Auth0, KeyCloak would be a great plus
• Strong ability to comprehend the overall project vision and its strategic goals.

• Solid understanding of the software’s business objectives and alignment of QA activities with business requirements.

   

We offer:

Technological Challenges: You will participate in exciting technological projects where you can apply your skills and abilities.

Team Collaboration: You will work in a team of highly skilled professionals who support each other and collectively achieve goals.

Development Opportunities: We are committed to your professional growth and development. You will have the opportunity to learn and enhance your skills.

Flexible Working Conditions: We understand the importance of maintaining a work-life balance. You will have the option to choose a flexible work schedule.

Career Growth: At Tetracode, we support your career growth. You can move up the career ladder, expanding your responsibilities and opportunities.

Transparent and Competitive Compensation: We recognize that your work and contribution are vital to our success. Therefore, we offer transparent and competitive compensation that reflects your skills, experience, and contribution to the project.

Join Tetracode and become part of our innovative and cohesive team, where exciting challenges and opportunities for your professional growth await you!

Tetracode is currently in search of a proficient Android Engineer passionate about Web3 technologies and experienced in Fintech and banking applications to become a part of our team and take on complex challenges while developing outstanding products.

Responsibilities

• Develop and maintain Android applications with Web3 integration;
• Design and optimize user interfaces following Material Design principles;
• Develop and enhance features for Fintech and banking applications, such as payment systems, transaction tracking, and financial analytics;
• Integrate and configure Firebase services for Android applications;
• Work with cryptocurrency wallets, blockchain services, and financial APIs;
• Ensure data security, privacy, and compliance with industry standards, addressing Web3 and Fintech-specific challenges;

• Collaborate closely with designers and backend developers to implement and test new features.

   

Requirements

• 3+ years of experience developing Android applications with Kotlin and Java;
• Proficient in Android Jetpack components, Compose, and Android design principles;
• Hands-on experience working with Firebase for data management and analytics;
• Strong understanding of Web3 and blockchain technologies (experience with Solana or Ethereum is a plus);
• Proven track record in developing Fintech or banking applications, including features like payment gateways, secure transactions, and financial tools;
• Familiarity with security practices relevant to Web3 and Fintech applications;
• Proficiency in Git for version control;
• Experience in crypto wallet development is a significant plus;

• Familiarity with Kotlin Multiplatform Mobile (KMM) is an advantage.

   

We offer

Technological Challenges: You will participate in exciting technological projects where you can apply your skills and abilities.

Team Collaboration: You will work in a team of highly skilled professionals who support each other and collectively achieve goals.

Development Opportunities: We are committed to your professional growth and development. You will have the opportunity to learn and enhance your skills.

Flexible Working Conditions: We understand the importance of maintaining a work-life balance. You will have the option to choose a flexible work schedule.

Career Growth: At Tetracode, we support your career growth. You can move up the career ladder, expanding your responsibilities and opportunities.

Transparent and Competitive Compensation: We recognize that your work and contribution are vital to our success. Therefore, we offer transparent and competitive compensation that reflects your skills, experience, and contribution to the project.

Join Tetracode and become part of our innovative and cohesive team, where exciting challenges and opportunities for your professional growth await you!

Tetracode is seeking a skilled Frontend Engineer to join our team and tackle intricate challenges while crafting exceptional products. As a Frontend Engineer, you will be responsible for creating innovative features, refining the user interface of our products, and enhancing the stability of our systems as they expand. Collaborating closely with a team of talented Engineers, you will drive processes and elevate user-centric features. Your commitment to simplicity and dependability guides your decision-making, considering the impact of each choice. We embrace the power of small teams, where each member makes a substantial contribution.

What you need to have

3+ years of professional experience in React.js with thorough understanding of its core principles.

Proficiency in JavaScript, including DOM manipulation and the JavaScript object model.

Experience with popular React.js workflows (such as Flux or Redux).

Familiarity with RESTful APIs and asynchronous request handling.

Experience with common front-end development tools such as Babel, Webpack, NPM, etc.

Understanding of the full software development lifecycle (design, development, testing, deployment)

Experience with Agile/Scrum development processes

Ability to understand business requirements and translate them into technical requirements.

Strong analytical and troubleshooting skills.

Upper-Intermediate English or higher.

Nice to Have
Experience with blockchain/Web3 projects and related libraries (ethers.js, web3.js, wagmi). 

Familiarity with wallet integrations (MetaMask, WalletConnect) and crypto UX patterns. 

Understanding of DeFi protocols, trading interfaces, or fintech applications.

Experience with real-time data visualization and charting libraries.

Knowledge of blockchain fundamentals and security best practices for crypto applications.

Responsibilities

Develop new user-facing features using React.js.

Build reusable components and front-end libraries for future use.

Translate designs and wireframes into high-quality, maintainable code.

Optimize components for maximum performance across a various of devices and browsers.

Collaborate with designers and backend developers and product team to improve usability.

Ensure the technical feasibility and quality of UI/UX designs.

Stay up-to-date with emerging technologies and best practices and apply them to improve development workflows.
Participate in architectural decisions for front-end infrastructure

We offer

Technological Challenges: You will participate in exciting technological projects where you can apply your skills and abilities.

Team Collaboration: You will work in a team of highly skilled professionals who support each other and collectively achieve goals.

Development Opportunities: We are committed to your professional growth and development. You will have the opportunity to learn and enhance your skills.

Flexible Working Conditions: We understand the importance of maintaining a work-life balance. You will have the option to choose a flexible work schedule.

Career Growth: At Tetracode, we support your career growth. You can move up the career ladder, expanding your responsibilities and opportunities.

Transparent and Competitive Compensation: We recognize that your work and contribution are vital to our success. Therefore, we offer transparent and competitive compensation that reflects your skills, experience, and contribution to the project.

Join Tetracode and become part of our innovative and cohesive team, where exciting challenges and opportunities for your professional growth await you!