Jobs at Djinni

At the moment the company is looking for a Golang Developer who will be a part of their team:

Tasks:

-Write robust, scalable and easy-to-maintain code

-Develop high-quality integration code with third-party APIs and services, following the latest design and development patterns

-Collaborate with cross-functional teams to identify and resolve integration issues

-Research, design, scope, and estimate project requirements, ensuring the team meets agreed deadlines

-Ensure the team is to coding standards and best practices

-Develop and maintain technical documentation to ensure it reflects the current state of integration architecture and design

-Stay up-to-date with the latest integration technologies, trends, and tools, and apply them to improve our integration services

-Participate in code review sessions, providing feedback to team members

-Contribute to the development and implementation of processes and procedures to ensure the team's productivity and efficiency

Must-have:

-At least 3+ years of experience with Golang

-Knowledge of database (preferably PostgreSQL)

Nice-to-have:

-Previous experience with Linux, Docker, Kubernetes

-Knowledge of gRPC

-Ability to design, implement, and build microservices

Benefits:

-Full-time, remote job

-4 days working week (Monday - Thursday, Friday day off)

-Paid vacation (20 days) and sick leaves

-Flexible working schedule

-Friendly professional staff and warm atmosphere

Interview process:

-Call with HR

-Deeper technical interview with CTO and Systems Architect

Requirements:
 

• At least 1 year of proven experience as a Quality Assurance Specialist
• Strong knowledge of software QA methodologies, tools, and processes
• Experience in test documentation design (test plans, bug reports, etc.)
• Understanding of the software development life cycle and experience working with different methodologies
• Excellent problem-solving and analytical skills
• Attention to detail and the ability to work well as part of a team

Will be plus:

• Skills in programming
• Experience with DBMS (MySQL, PostgreSQL, etc.)

⠀
We offer:
 

• Stable and competitive compensation with regular results-based review
• Opportunities for career growth and raising professional skills
• Dynamic environment with low level of bureaucracy
• Innovative projects with advanced technologies
• Your bookkeeping will be maintained by a professional accountant
• Compensation external English language trainings

Responsibilities:
 

• Perform thorough manual testing of web applications to ensure compliance with requirements
• Document test results and prepare detailed reports on findings
• Maintain clear and open communication with project stakeholders, including clients, team members, and executives
• Continually improve QA processes to ensure high-quality products

We are an official partner of one of the largest online trading platforms in the world. Our specialists form a team of professionals who approach every challenge with passion and determination. We don't just work for our clients; we create real opportunities for their growth. Every project is a chance for us to deliver the best results. Our clients' success is our goal, and we are ready to pursue it together!

We are seeking a QA Test Developer (Automation Engineer) to join our team. The successful candidate will be responsible for writing programmatic tests across various programming languages and environments. These tests will be integrated into our GitLab CI/CD pipelines and report back via the CI/CD runner. The goal of this position is to ensure that each feature developed has an accompanying test to verify that it works as expected and intended, regardless of the technology stack involved. 
 

Key Responsibilities: 

• Develop and maintain automated test suites for different projects, including PHP, JavaScript/Node.js, and web applications. 
• Write tests-as-code using appropriate frameworks such as PHPUnit for PHP, Japa and Vitest for JavaScript/Node.js, and Playwright and Puppeteer for browser-based applications. 
• Design and implement tests based on the requirements of each task, ensuring comprehensive coverage. 
• Integrate automated tests into GitLab CI/CD pipelines, configuring them to automatically block code from advancing if tests fail. 
• Collaborate closely with development teams to understand feature requirements and ensure tests accurately assess functionality. 
• Contribute to the continuous improvement of testing frameworks, tools, and processes. 
• Stay current with the latest trends and technologies in software testing and automation. 

Qualifications: 

• Proven experience as a QA Automation Engineer or in a similar role. 
• Proficiency in writing tests-as-code with the ability to design and implement tests based on task requirements, regardless of language or environment. 
• Familiarity with testing frameworks and tools such as PHPUnit, Japa, Vitest, Playwright, and Puppeteer. 
• Experience integrating automated tests into GitLab CI/CD pipelines. 
• Strong understanding of software development life cycles and testing methodologies. 
• Ability to write clear, maintainable, and efficient test code. 
• Experience with version control systems, particularly Git. 
• Problem-Solving Approach: A proactive attitude toward tackling challenges, with a willingness to explore and learn new solutions. Openness to collaboration and seeking assistance when needed to find effective outcomes. 
• Best Effort Commitment: Dedication to giving your best effort in all tasks, striving to achieve high-quality results even when faced with complex problems. 
• Strong communication and teamwork skills. 
• English language skills at B2/C1 level.

With us you will get:

• Flexible start of the working day (9:00-17:00, 10:00-18:00, 11:00-19:00).
• Comfortable office with modern equipment.
• Health insurance, which is fully covered by the company.
• A subscription to a closed gym.
• Professional development courses.
• Mental health services.
   

We are looking for a Project Manager to lead the end-to-end implementation of IT solutions within a service-oriented department. The role includes delivering new systems from scratch, modernizing existing platforms, integrating services, and ensuring stable operations across the organization. 

Key Responsibilities:

• Manage full project life cycle: requirements discovery, planning, delivery, testing, rollout, and post-launch stabilization.
• Lead implementation and enhancement of ERP, CRM platforms, Power Platform solutions, and other enterprise systems.
• Coordinate cross-functional teams, vendors, technical experts, and internal stakeholders to ensure timely and aligned delivery.
• Develop and maintain project documentation: roadmaps, schedules, risk registers, scope descriptions, budgets, and status reports.
• Oversee integrations, data flows, and technical design alignment with business objectives.
• Drive updates and modernization of existing systems, including analysis of improvement needs and planning of incremental releases.

• Facilitate change management by running demos, workshops, and communication sessions, and ensuring stakeholder alignment across business units.

   

Required Competencies:

• Experience managing IT implementation projects (ERP, CRM, Power Platform, custom enterprise solutions).
• Understanding of SDLC, integration principles, APIs, data migration, and application architectures.
• Strong planning, prioritization, and risk management skills.
• Practical experience with Agile, Waterfall, or hybrid delivery models.
• Ability to structure complex information, manage expectations, and communicate effectively with technical and non-technical teams.
• Analytical mindset with a focus on predictable delivery and continuous improvement.

Nice to Have:

• Hands-on experience with MS Dynamics implementation or large-scale CRM rollouts.
• Experience with Power Apps, Power Automate, Power BI, or similar low-code platforms.
• Background in enterprise-level IT environments or complex service organizations.
• Familiarity with tools like Jira, Confluence, MS Project, Monday, Notion, or similar project management platforms.

Due to the growing number of projects and higher quality requirements, the team is expanding and seeking an experienced QA Engineer. This role will strengthen test coverage, speed up feature validation, and reduce the risk of defects reaching production.

Responsibilities:

• Perform functional, integration, and sanity testing of complex logic with a strong focus on the user interface and overall user experience.
• Analyze requirements, create high-quality checklists, test cases, test reports, and provide accurate task estimates.
• Collaborate closely with developers, analysts, and other team members to ensure stable product quality.
• Participate in regression testing and help build test coverage for various features and projects.

• Contribute to improving testing processes, propose enhancements, and influence product quality.

   

Requirements:

• 2+ years of experience testing web applications.
• Experience working with systems that have complex business logic (CRM, ERP, or similar).
• Strong analytical thinking and the ability to critically evaluate requirements.
• Experience creating test documentation: checklists, test cases, reports.
• Understanding of key testing methodologies, techniques, and best practices.
• Experience in UI testing (functional and integration) for web or desktop applications.
• Basic knowledge or interest in performance testing is an advantage.
• Basic SQL and API knowledge is a plus.
• Experience or interest in automated testing (Playwright or similar tools).
• Excellent communication skills and the ability to convey information clearly.
• Proactive attitude, independence, and a desire for continuous development.

Responsibilities:

• Analyze and document current business processes (AS IS) and design target processes (TO BE).
• Identify opportunities to optimize processes and automate with a strong focus on business value.
• Gather, structure, and document functional and non-functional requirements.
• Prepare and maintain technical documentation (BRD, SRS, User Stories, Acceptance Criteria).
• Support the development lifecycle by collaborating closely with developers and QA during implementation.
• Analyze and re-engineer existing business processes, including decision-making workflows.
• Contribute to product discovery, solution design, and delivery.

Requirements:

• 1+ year of experience as a Business Analyst or Business Process Analyst (mandatory).
• Hands-on experience in software development or automated testing (mandatory).
• Strong understanding of the Software Development Life Cycle (SDLC).
• Proven experience in requirements elicitation and documentation.
• Solid knowledge of BPMN 2.0 and UML.
• Understanding of APIs and web services; experience working with integrations.
• Experience in business process re-engineering and optimization.

Will Be a Plus

• Experience with CRM, ERP, financial systems, or enterprise platforms.
• Experience working in Agile teams (Scrum/Kanban).
• Strong stakeholder communication and facilitation skills.

Genesis is a full-service international IT company. More than 1,500 people in five countries create products for more than 200 million unique monthly users. We are one of the largest partners of Facebook, Google, Snapchat, and Apple in Eastern Europe. Our ecosystem consists of more than 15 companies and an investment fund.

EverHelp is a company in the Genesis ecosystem. We’re a team of professionals, that’s developing outsourcing support services for plenty of products all over the world at a dynamic tempo. The project launched in 2021, and we've experienced a yearly growth rate of +82%. Since February 2022, we've managed to preserve all our workplaces and, most importantly, we continue to strengthen our team while maintaining an employee satisfaction rate of over 90%.
 

We are looking for a Coaches Success Coordinator to support users via live chat and deliver a great customer experience.
 

Your future responsibilities include:

• Handle customer inquiries via live chat (Intercom) in a timely and professional manner.
• Ensure a positive customer experience by effectively resolving issues and supporting users throughout their journey.
• Work with freemium users and guide them toward paid plans by explaining the value of access to a real professional coach.
• Provide supportive, empathetic guidance and suggest basic self-help approaches aligned with the product’s purpose.
• Document conversations and updates accurately in the CRM system.
• Collaborate with the team to maintain high service quality and customer satisfaction.
• This is a 3-month contract role with the possibility of extension based on performance and business needs.
   

Needed experience & skills:

• At least 6 months of experience in customer support or a related field.
• English level B2+.
• Clear communication skills, empathy, and a customer-focused mindset.
• Ability to solve problems, think critically, and pay attention to details.
• Comfortable working with CRM systems (Intercom is a plus).
• Proactive, adaptable, and open to feedback.
   

Work with EverHelp is about:

• 20+ vacation days and unlimited sick leaves,
• Ability to work fully remotely,
• A professional team of specialists, ready to share their expertise, along with internal communities and team activities, fosters continuous learning and development both within the team and on an individual level,
• Opportunity for a career growth. 32% of our teammates obtained a new role during their first year of work in our company. 86% of our Team Leads have been our Customer Support Agents in the past.
   

Submit your resume and join our team!

We are VintoGroup, an international iGaming company operating since 2020. Our portfolio includes successful sportsbook and casino products across multiple markets. Over the past year, we have grown rapidly, scaled our teams, and were awarded Best Sportsbook Operator at the SiGMA Awards.

We are now strengthening our recruitment function and are looking for a Team Lead Recruiter who can go beyond closing vacancies and build a strong, predictable, and scalable hiring system.
 

🚀 Responsibilities & Scope:
 

-Lead the recruitment team (recruiters / sourcers): task setting, prioritization, quality and deadline control.

-Full-cycle recruitment across key business areas:
iGaming (Affiliate, Marketing, Product, Tech, Operations, Payments, and more).

-Participation in hiring strategy development together with business stakeholders and top management.

-Close collaboration with hiring managers:

🌟 requirement intake

🌟 accurate role calibration

🌟 end-to-end support until offer acceptance and candidate onboarding.

-Monitoring and improving hiring metrics (time to hire, funnel performance, offer acceptance rate, quality of hire).

-Implementation and optimization of recruitment processes: funnels, interview frameworks, candidate experience.

-Team development: onboarding, mentoring, and professional growth of recruiters.

-Working with ATS (PeopleForce), recruitment analytics, and reporting.

-Active involvement in employer branding (LinkedIn, Telegram, market communication).
 

🤩 Our Expectations:
 

-3–5+ years of recruitment experience, including experience as a Team Lead / Recruitment Lead / Senior Recruiter with leadership responsibilities.

-Mandatory experience hiring for iGaming / Gambling / Digital / IT product companies.

-Ability to handle complex and high-volume hiring simultaneously.

-Strong understanding of the iGaming market and candidate landscape.

-Data-driven approach to recruitment (funnel management, metrics, analytics), not intuition-based hiring.

-Excellent communication skills and ability to build strong partnerships with the business.
 

⭐️ What We Offer:
 

-Opportunity to work in a fast-growing international iGaming group with a strong product.

-Real impact on processes and the ability to build recruitment “from the ground up.”

-Supportive, involved management with short decision-making chains.

-Competitive salary

-Fully remote work format

A team that values results, initiative, and common sense.

🌴 20 paid vacation days + 5 paid sick days + public holidays

We are seeking a Team Lead React/ Node.js to lead a small, high-impact engineering team

responsible for our customer-facing web platform and API, and an internal platform used for AI

model training. This role is both hands-on and leadership-oriented, with a strong focus on technical

ownership, system design, and product-team collaboration.

The ideal candidate combines deep technical expertise in modern TypeScript-based development

with experience guiding engineers, improving workflows, and shipping high-quality features in a

fast-paced startup environment.

Key ResponsibilitiesTeam Leadership

Lead a team of two full stack developers and one QA engineer.

Provide ongoing mentorship, code reviews, and technical direction.

Facilitate Scrum ceremonies and maintain smooth execution of sprints.

Ensure high engineering standards, testing quality, and delivery velocity.

Technical Ownership

Own the development and maintenance of our customer-facing web platform (React +Node.js), external APIs and Internal Platform.

Lead architecture, design, and implementation of backend services using AWS Lambda

(serverless) and containerized workloads on EC2.

Oversee performance, reliability, and scalability of the Postgres RDS database.

Drive improvements to CI/CD pipelines, build systems, testing strategy, and infrastructure

reliability.

Ecosystem & Tooling

Work within a monorepo environment.

Manage Infrastructure as Code using CloudFormation.

Maintain monitoring, logging, and alerting pipelines using Coralogix.

Ensure robust automated testing using Cypress and Vitest.

Maintain Docker-based development environments and EC2 deployments.Cross-Team Collaboration

Partner directly with Product Managers to translate requirements into technical plans.

Coordinate with other engineering teams under the CTO to align architecture, standards, and

shared components.

Key Projects They Will Own

Customer-facing web platform (React + Node.js + AWS) and API.

Internal platform for AI model training, including backend services and supporting tooling.

Ongoing modernization and scaling efforts across the stack.

Culture & Working Style

Scrum-based, iterative development

High autonomy—engineers are trusted to own problems end-to-end

Fast-paced startup with rapid decision-making and high impact

Qualifications

Strong experience with TypeScript across frontend and backend.

Hands-on experience with React, Node.js, AWS Lambda, EC2, Postgres RDS, and Docker.

Experience leading or mentoring engineers.

Solid understanding of CI/CD (GitHub Actions), automated testing, logging, and monitoring.

Ability to work directly with Product and translate requirements into architecture and tasks.

Nice to Have

Knowledge of serverless design patterns.

Experience in performance tuning for Postgres and Node.js.

Hiring Process

Technical screening

Culture and leadership interview with CEO

We are seeking a highly skilled and motivated DevOps Engineer to join our Core Team. In this role, you will be a key player in bridging the gap between development and operations, ensuring our systems are scalable, resilient, and automated. You will manage a hybrid environment consisting of AWS Cloud, Digital Ocean services and on-premises servers, leveraging modern GitOps workflows to streamline deployment in Microservices and Serverless architectures.

Key Responsibilities: 
● Hybrid Infrastructure Management: Design, implement, and maintain scalable infrastructure across AWS and on-premises data centers. 
● Automation & IaC: Treat infrastructure as software by using Terraform or CloudFormation to automate resource provisioning and configuration. 
● Container Orchestration: Manage and scale containerized applications using Kubernetes, utilizing Rancher for multi-cluster management and visibility. 
● GitOps Delivery: Implement and maintain continuous delivery pipelines using ArgoCD to ensure the desired state of our clusters matches our Git repositories. 
● CI/CD Pipeline Development: Design and optimize automated build and deployment workflows using GitHub Actions. 
● System Administration: Manage and tune Linux (Ubuntu) environments for performance, security, and reliability. 
● Databases: manage database infrastructure, including replicas, backups, point-in-time recovery, monitor database performance and collaborate with developers to optimize queries and indexing strategies.

Required Qualifications: 

1. Cloud & Core Infrastructure 
● AWS Mastery: Proven experience with core AWS services (EC2, S3, SQS, CloudWatch, RDS, VPC, IAM). 
● Hybrid Experience: Hands-on experience managing and troubleshooting on-premises physical or virtualized servers. 
● Linux Expertise: Deep knowledge of Linux administration, with a strong preference for Ubuntu. 

2. Orchestration & Continuous Delivery
● Kubernetes & Rancher: Solid experience deploying and managing production-grade K8s clusters. 
● ArgoCD & GitOps: Experience implementing GitOps patterns for automated, declarative application deployments. 
● CI/CD: Proficiency with Git and GitHub Actions for automating testing and deployment cycles. 

3. Automation & Development 
● Infrastructure as Code (IaC): Advanced proficiency in Terraform, CloudFormation, or similar tools. 
● Programming: Strong Python scripting skills for task automation, custom tooling, and interacting with APIs. 

4. Modern Architecture 
● Architectural Patterns: Deep understanding of Microservices and Serverless (e.g., AWS Lambda) design principles. 

5. Databases 
● Relational DBs: Deep experience with PostgreSQL administration (vacuuming, indexing, replication, and backup strategies). 
● NoSQL & Cloud Native: Proficiency in AWS DynamoDB, understanding GSIs, LSIs, and TTL configurations.

Preferred/Bonus Qualifications: 
● Experience with Workflow Management platforms such as Apache Airflow. 
● Experience with monitoring and observability stacks (Prometheus, Grafana, ELK). 
● Strong communication skills and the ability to work effectively in an agile, collaborative environment.
 

Join our Core Team as a highly skilled Python Developer to build and scale our high-load Geospatial AI Data Platform. You will be the critical link, productionizing Data Science models and transforming massive volumes of raw imagery into meaningful, structured insights that power our client-facing product. If you're driven by complex, high-scale big data challenges, this is the role for you. 

Key Responsibilities: 
● Data Pipeline Development: Implement and optimize robust ETL data pipelines for collecting, cleaning, transforming, and loading large volumes of geospatial data. 
● API Development & Deployment: Design, build, and maintain high-speed, scalable RESTful APIs (using frameworks like FastAPI/Powertools for Lambda). 
● Model Integration & Productionization: Work closely with Data Scientists to containerize and deploy models (e.g. roof age prediction) into our Geospatial AI Data Platform. 
● Code Quality & Optimization: Write clean, efficient, testable, and reusable Python code. Optimize data processing and platform latency to handle requests and queries at massive scale and high volume. 
● System Architecture: Contribute to the design and implementation of our Microservices and Serverless architectures, ensuring high availability, security, scalability and observability. 
● Collaboration: Work within an Agile team alongside Data Scientists, DevOps, and Product Managers to translate business requirements into technical solutions.

Required Qualifications: 
● B.Sc. degree in Computer Science or a related technical field. 
● Demonstrable professional experience as a Python Developer with a focus on data-intensive backend systems (4+ years). 
● Expert knowledge of Python 3, follow PEP8. 
● Experience developing using OOP and SOLID principles. 
● Proven experience designing and developing production-ready APIs using a modern Python web framework such as FastAPI or Powertools for AWS Lambda. 
● Experience with AWS services such as S3, SQS, EC2, API GW, Lambda, DynamoDB, CloudFormation/SAM using boto3. 
● Experience with Docker/Kubernetes. 
● Experience with Linux, preferably Ubuntu. 
● Experience with SQL Databases (e.g. PostgreSQL) 
● Experience with version control (Git) and collaborative development workflows. 
● Good communication skills in English

Preferred/Bonus Qualifications: 
● Experience with geo-spatial libraries (e.g., Geopandas, GDAL, Shapely, Rasterio). 
● Familiarity with model serving technologies such as NVIDIA Triton Inference Server. 
● Experience with Workflow Management platforms such as Apache Airflow. 
● Experience with on-prem servers. 
● Knowledge of CI/CD pipelines (GitHub Actions) and DevOps best practices

We are a fast-growing B2B startup operating in international markets, looking for a motivated SDR (Sales Development Representative) to join our sales team. This is a role with real responsibility and hands-on exposure to global B2B sales.

The Role Focus

 • This position is primarily focused on lead generation and outbound prospecting

 • You will be responsible for sourcing, researching, and qualifying leads

Who You Are

● 2+ years of experience as an SDR / BDR in a B2B environment (experience with full-cycle sales is a strong advantage)

● Strong passion for sales, business, and startups

● Proven ability to write clear, compelling outbound messaging and prepare commercial proposals

● Experience with lead qualification and outbound prospecting (LinkedIn, email outreach, databases, etc.)

● Highly organized, self-driven, and comfortable working with KPIs and CRM systems

● Strong written communication and stakeholder management skills

Nice to Have

● Experience selling B2B SaaS or technology solutions (especially with insurance)

● Familiarity with CRM tools and outbound platforms

We are looking for an experienced Business Development Manager with a focus on full-cycle B2B sales and driving company growth in international markets. You will be responsible for identifying and attracting new clients, managing the full sales cycle from initial contact to deal closing, and building long-term partnerships.

Responsibilities

Execute the full B2B sales cycle: lead generation and qualification, cold and warm calls, conducting online and offline meetings, product presentations, negotiations, preparing commercial proposals, and closing deals
Initiate and develop new partnerships and sales opportunities in international markets
Build and maintain long-term relationships with key clients and partners
Analyze markets, competitors, and customer needs to shape growth strategy
Closely collaborate with Sales, Marketing, and Product teams to improve go-to-market strategy and product offerings
Manage pipeline in CRM system, forecast results, track key metrics, and report on sales performance
 

Requirements

3+ years of experience in Business Development, direct B2B sales, or Partnerships
Proven track record of closing deals and growing revenue (preferably with examples of achieved results)
Strong negotiation skills, experience conducting calls and presentations, and handling objections
Fluent English (written and spoken) — daily communication with international clients
Experience working with international markets (Europe, USA, Asia, etc.)
Proficient in CRM systems (HubSpot, Salesforce, Pipedrive, or similar), KPI tracking, and data-driven approach
 

Nice to Have

Experience in full-cycle sales in B2B SaaS, IT services, or technology products
Existing network of contacts and partners in target industries
Understanding of startup or scale-up environments
Education in business, economics, marketing, or related fields

We are looking for a versatile and experienced Rust Engineer to join our dedicated team for a long-term collaboration. While the primary focus is building secure smart contracts for next-generation networks (like Casper), we need a specialist who sees the bigger picture. You will own the delivery of complex decentralized solutions—from on-chain logic to system integration. We value robust engineering principles and intellectual flexibility; if you are a strong Rust engineer willing to master blockchain specifics, we want to hear from you.

Who are we?

We are Out Of The Box Systems: a Ukrainian team of passionate, battle-tested engineers and creators united by one goal—delivering real results with clarity, precision, and autonomy. We champion a flexible, pragmatic approach over rigid, static processes. While our roots and primary team are in Ukraine, we collaborate with top talent from various labor markets. We specialize in demanding fields like Rust-first development, AI Engineering, and Computer Graphics, blending performance, security, and innovation into every project. We are deeply invested in the growth of our team members, believing that a person's ability to learn and their openness to feedback are the true keys to long-term success. Our team thrives on solving hard problems and doing the heavy lifting so our clients don’t have to.

Workload

• Full-time, remote collaboration.
• Flexible schedule, with expected availability for team syncs.
• Project-based workload with a focus on clear deliverables.

Responsibilities

• Take ownership of the full technical solution, designing and implementing secure smart contracts and the surrounding systems required to make them usable.
• Bridge the gap between on-chain logic and off-chain reality, designing integration patterns, backend services, and indexing strategies.
• Ensure the long-term reliability and security of the protocol by defining testing standards, conducting internal audits, and designing for upgradability.
• Solve complex distributed system problems, prioritizing performance and economic efficiency (gas/resource optimization) across the entire stack.
• Act as a technical leader and mentor, elevating the team’s standards through code reviews, architectural RFCs, and knowledge sharing.

Required Skills

• Rust Proficiency: Solid professional experience with Rust. You understand memory safety, concurrency, and how to write clean, idiomatic code.
• Engineering Fundamentals: Deep understanding of computer science principles, data structures, algorithms, and distributed systems architecture.
• Testing Culture: A strong habit of writing comprehensive unit and integration tests. You don't just write code; you prove it works.
• Intellectual Flexibility: A demonstrated ability (and willingness) to dive into new documentation, learn new protocols (like Casper/Wasm), and adapt to changing technical requirements.
• English Proficiency: Upper-Intermediate (B2) or higher, capable of discussing abstract architectural concepts clearly.

Preferred Skills

• Blockchain Experience: Experience with smart contract development on any chain (Casper, Solana, NEAR, Ethereum, Polkadot).
• Wasm & Compilers: Knowledge of WebAssembly or low-level compilation targets.
• Cryptography: Understanding of hashing, signatures (Ed25519/Secp256k1), and cryptographic primitives.
• Infrastructure: Experience with Docker, CI/CD pipelines, or cloud infrastructure (AWS/GCP).
• Backend: Experience with standard Rust backend frameworks (Tokio, Axum, Actix) and databases (PostgreSQL).

What you get

• The opportunity to architect and build challenging projects at the forefront of the Rust blockchain ecosystem.
• A transparent, friendly, and supportive team environment that values ownership and competence.
• A clear path for growth, where you are encouraged to experiment with and master new technologies.
• Competitive compensation based on your skills and experience.
• This is a long-term collaboration based on a 2-year B2B contract, reflecting our mutual investment in your growth and success with our team.

We are looking for a true Polyglot Engineer to join our team for a long-term collaboration. In the fragmented world of Web3, the ability to bridge different technologies is a superpower. We need a specialist who can architect and build the critical off-chain infrastructure that powers decentralized applications. If you are proficient in Rust but comfortable diving into C++, Python, and Node.js to get the job done, this role is for you.

Who are we?

We are Out Of The Box Systems: a Ukrainian team of passionate, battle-tested engineers and creators united by one goal—delivering real results with clarity, precision, and autonomy. We champion a flexible, pragmatic approach over rigid, static processes. While our roots and primary team are in Ukraine, we collaborate with top talent from various labor markets. We specialize in demanding fields like Rust-first development, AI Engineering, and Computer Graphics, blending performance, security, and innovation into every project. We are deeply invested in the growth of our team members, believing that a person's ability to learn and their openness to feedback are the true keys to long-term success. Our team thrives on solving hard problems and doing the heavy lifting so our clients don’t have to.

Workload

• Full-time, remote collaboration.
• Flexible schedule, with expected availability for team syncs.
• Project-based workload with a focus on clear deliverables.

Responsibilities

• Design, implement, and maintain high-performance backend services and indexers using Rust as the primary language.
• Integrate with diverse blockchain nodes and legacy systems, utilizing C++ for performance-critical modules or native bindings.
• Develop robust APIs and tooling scripts using Node.js and Python to ensure seamless interaction between on-chain data and client applications.
• Architect scalable data pipelines that can handle the asynchronous nature of blockchain events reliably.
• Act as a bridge between technologies, mentoring team members on how to effectively navigate a multi-language stack.

Required Skills

• Polyglot Proficiency: You must be comfortable working in a multi-language environment.
  • Rust: Strong proficiency for core backend logic and safety.
  • C++: Experience with systems programming, reading legacy code, or performance optimization.
  • Python: Proficiency for data processing, testing frameworks, or rapid scripting.
  • Node.js: Experience with the JS/TS ecosystem, particularly for Web3 SDKs and lightweight services.

• Backend Architecture: Deep understanding of API design (REST/gRPC), database modeling (SQL/NoSQL), and microservices.
• Distributed Systems: Understanding of eventual consistency, message queues, and handling asynchronous events.
• Intellectual Flexibility: The ability to pick the right tool for the job and adapt quickly to new libraries or protocols.
• English Proficiency: Upper-Intermediate (B2) or higher.

Preferred Skills

• Ethereum & EVM: Deep understanding of the Ethereum ecosystem, JSON-RPC standards, event logs, and ABI decoding.
• Major Chains: Experience integrating with other major networks (Solana, Near, Cosmos, or Bitcoin).
• Blockchain Nodes: Experience running or modifying nodes (e.g., Geth, Casper Node, Substrate).
• DevOps: Experience with Docker, Kubernetes, and CI/CD pipelines.
• Cryptography: Basic understanding of cryptographic primitives used in blockchain (hashing, signatures).

What you get

• The opportunity to work on complex, high-impact infrastructure projects where your versatility is a major asset.
• A transparent, friendly, and supportive team environment that values ownership and competence.
• A clear path for growth, where you are encouraged to experiment with and master new technologies.
• Competitive compensation based on your skills and experience.
• This is a long-term collaboration based on a 2-year B2B contract, reflecting our mutual investment in your growth and success with our team.