Engineering Manager (Remote) (Poland)

I am Sadr, CEO of Oferli. We are building a high-performance, elite technical team, and I am looking for 5 to 10 dedicated founding technical partners to join me in this mission.
​The Vision:
Oferli is a 100% decentralized ecosystem. While we are rooted in Web3, our expertise spans across professional web and mobile application development. We are not just another agency; we are crafting the next generation of digital solutions. Our goal is to set a new standard for excellence, transparency, and decentralization.
​What I am looking for:
I am building a professional, senior-level "Elite Team." I am looking for partners who are truly passionate about the vision—not just short-term gains. By combining our individual expertise and portfolios, we will establish Oferli’s collective professional reputation.
​Requirements:
​Proven Expertise: You must be a senior-level professional. Please provide your portfolio showcasing your best work in web and mobile development.
​Commitment: This is a founding partnership. We are looking for those who believe in the mission and are ready to tackle complex challenges together.
​Professionalism: We operate with high standards. Communication and efficiency are key.
​How We Work:
​Collaboration: We use professional, secure channels for all communications. Qualified candidates will be contacted via email to be invited to our private workspace on Notion to align on our roadmap and launch our upcoming projects.
​Decentralized Operations: We leverage Web3 tools for collaboration and compensation, maintaining a fully decentralized environment.
​Growth: We are launching with a core team of at least 5 founding partners, scaling to 10, to deliver high-impact results for our clients.
​Application Process:
If you are a senior professional ready to build a world-class, decentralized ecosystem, apply here on LaborX. Qualified candidates will be contacted via email for further professional vetting and onboarding.
​Let’s build the future, together.
​Sadr B
CEO, Oferli

 
 
we’re looking for a senior blockchain engineer to build low-latency execution infrastructure around hyperevm and hyperliquid-related trading systems.
 
this is not a frontend or dapp role. the focus is on real-time execution systems, chain-native infrastructure, and market-aware backend engineering where latency, ordering, and state correctness directly impact execution outcomes.
 
you will work on systems that operate under noisy, adversarial, and highly dynamic conditions, including delayed or missing websocket events, rpc inconsistencies, transaction lifecycle complexity, state desynchronization, retries, and recovery logic.
 
core responsibilities include building and maintaining realtime blockchain data pipelines, websocket and rpc streaming systems, execution orchestration layers, liquidity-aware routing logic, transaction lifecycle management, and integration with orderbook and market data systems.
 
we are specifically looking for engineers who think in systems rather than features. meaning understanding how data flows through pipelines, how state evolves over time, how failures propagate, and how to design systems that recover automatically without manual intervention.
 
areas of work include:
 
- realtime blockchain data ingestion
- mempool-aware execution flows
- transaction lifecycle handling
- execution sequencing and routing
- websocket and rpc infrastructure
- state synchronization systems
- liquidity and orderbook integration
- performance and latency optimization
 
you should be comfortable working with distributed systems, asynchronous event processing, and latency-sensitive backend architectures.
 
strong experience in one or more of the following areas is highly relevant:
 
- exchange infrastructure
- trading systems
- execution engines
- blockchain indexers
- realtime event systems
- arbitrage systems
- rpc/node infrastructure
- defi backend systems
- low-latency backend engineering
 
preferred technical stack:
 
- typescript / node.js
- go
- rust
- python
- postgres
- clickhouse
- redis
- kafka or similar messaging systems
- docker
- linux environments
- evm rpc internals
- websocket infrastructure
 
ecosystem familiarity:
 
- ethereum, arbitrum, base, optimism, bsc
- hyperliquid / hyperevm
- foundry
- ethers.js / viem
- geth / erigon / nethermind
- dex and amm mechanics
- liquidity math, slippage, gas strategy, routing logic
 
this role is not suitable for:
 
- frontend-only developers
- nft or basic dapp experience only
- tutorial-level web3 developers
- candidates without production systems experience
 
we value engineers who have built real systems where correctness, latency, and reliability matter under load. we care less about buzzwords and more about concrete systems you have personally built and operated.
 
ideal candidates can clearly explain:
 
- system architecture decisions
- bottlenecks and tradeoffs
- failure modes and recovery strategies
- latency considerations in real systems
- production debugging experience
 
working style:
 
- remote
- async-first
- low bureaucracy
- high ownership
- engineering-driven team
- direct technical communication
 
we strongly prefer practical engineering depth over polished presentation. if you have built or worked on systems involving realtime data, trading infrastructure, blockchain execution, or latency-sensitive backend systems, please include details of those systems when applying.
 

We are currently seeking a skilled professional to join our team as a Full-time Hackintosh iOS Developer. In this role, you will be responsible for developing iOS applications for our Hackintosh platform. The ideal candidate will have a strong background in Web, Mobile, and Software Development, Engineering & Architecture, Customer Service, and Accounting and Consulting Specialist.
Responsibilities:
- Designing, developing, and implementing iOS applications for our Hackintosh platform
- Collaborating with cross-functional teams to define, design, and ship new features
- Troubleshooting application bugs and implementing solutions
- Ensuring the performance, quality, and responsiveness of applications
- Staying up-to-date with the latest industry trends and technologies
- Providing technical support and guidance to users as needed
Requirements:
- Proven work experience as an iOS Developer or similar role
- Proficient in Objective-C, Swift, and Xcode
- Strong understanding of iOS development best practices
- Excellent problem-solving skills
- Ability to work independently and as part of a team
- Strong communication and interpersonal skills
- Knowledge in web, mobile, and software development, engineering & architecture, customer service, and accounting and consulting specialist
If you are passionate about iOS development and eager to work on innovative projects in the Hackintosh space, we'd love to hear from you. Please apply with your resume and portfolio to be considered for this exciting opportunity.

Job Overview

CleanSpark is seeking a Commercial Operations Associate to support their AI data center projects by overseeing procurement, contract administration, and financial analysis. In this role, you will report to the Senior Manager, Commercial Operations and play a key part in evaluating vendor proposals, analyzing budget discrepancies, addressing commercial issues, and providing recommendations to ensure successful project delivery.

Key Responsibilities

Conduct detailed analysis of project budgets, forecasts, and expenditures, and suggest actions to handle variances.

Evaluate vendor proposals and select suppliers based on factors like cost, terms, timely delivery, and risk assessment.

Engage in negotiations to finalize commercial terms, obtaining necessary approvals.

Review contracts, change orders, and manage commercial risks and vendor-related matters.

Address and resolve any non-routine procurement, invoice, or payment discrepancies as they arise.

Enforce commercial policies and financial controls, escalating issues if necessary, and work towards process improvements.

Develop reports outlining trends, risks, and strategic actions to enhance commercial operations.

Maintain precise records and project data in company systems, ensuring accuracy and completeness.

Collaborate with legal and business partners for contract agreements, vendor onboarding, and approvals.

Work closely with project teams and vendors to handle commercial challenges and support project execution effectively.

Facilitate audits and compliance reviews, offering recommendations for corrective actions.

Undertake other responsibilities as delegated.

The successful candidate for this role will possess professionalism, effective communication skills, and the ability to collaborate well within a team-oriented and inclusive environment.

Required Qualifications

Bachelor's degree in relevant fields like business, finance, construction management, or operations, or equivalent experience.

Two or more years of hands-on experience in commercial operations, procurement, financial analysis, or contract management.

Ability to assess commercial issues independently and provide sound business recommendations.

Proficient in budget analysis, vendor proposal evaluation, and commercial terms review.

Strong judgment in policy application, problem resolution, and understanding of approval processes.

Proficiency in Microsoft Office tools and experience with project or financial systems.

Solid analytical, organizational, and communication skills.

Willingness to travel occasionally based on business requirements.

Preferred Qualifications

Experience in data centers, engineering, construction, energy, or similar capital-intensive industries.

Exposure to vendor negotiations, commercial risk management, change orders, or procurement processes.

This position offers a salary range of $85,000 to $95,000 per year and may involve responsibilities requiring the use of a company vehicle or travel between job sites. Candidates must meet CleanSpark's vehicle insurance policy requirements.

CleanSpark is an Equal Opportunity Employer, providing a discrimination-free workplace. All aspects of employment, including recruitment, promotions, termination, and training, are governed by this policy. AI tools may be utilized in parts of the hiring process.

A proprietary trading and research firm is looking for skilled full-stack engineers to contribute to the development of user interfaces and services for critical financial applications. These applications include visual analytics platforms and data-driven tools used by traders, researchers, and analysts. As a part of the team, you will be involved in working on TypeScript front-ends and Go services that support them. The team is transitioning its applications into a modular, plugin-based platform that will be expanded upon by other engineers. You'll be responsible for creating reusable UI modules, component libraries, and SDKs, in addition to developing end-user features. Ownership of your work will be from structured product requirement documentation through to production. No specific trading or finance background is mandatory; the team prioritizes engineering expertise and offers training in the domain.

What You'll Be Doing:

Collaborating with traders, researchers, and product managers to transform complex workflows into sophisticated UI solutions.

Designing and implementing high-performance, responsive front-end applications using current-generation TypeScript frameworks like Svelte, React, or Vue.

Building, operating, and designing Go back-end services with security and performance integrated into their design, overseeing service boundaries and data contracts end-to-end.

Constructing reusable UI components, libraries, and SDKs for a modular, plugin-based platform and connecting front-ends using typed SDKs and MCP-based interfaces.

Developing real-time UIs that process and display high-frequency market and on-chain data from various streaming sources using canvas-based charting and D3.js for unique views.

Guiding architecture and performance decisions for modular, extensible systems, maintaining automated testing and code review processes, and mentoring colleagues in best practices.

Key Requirements:

7+ years of hands-on experience in full-stack development with ownership of production on both the back-end and front-end.

Proficient in current TypeScript, HTML, and CSS along with a modern front-end framework such as Svelte, React, or Vue.

Strong Go experience capable of self-sufficiently designing, building, and operating production Go services.

Demonstrated ability in handling large datasets and real-time updates from back-end sources, constructing well-structured UI components and shared abstractions.

Sound understanding of performance optimization and rendering strategies in data-intensive applications, including the JavaScript runtime.

Thorough testing skills with unit and integration tests forming a standard part of the delivery process.

Excellent cross-functional communication skills along with experience with a major cloud platform and version control systems.

Desirable Skills:

Background or keen interest in trading systems or financial platforms, possibly including prior experience in hedge funds or proprietary trading.

Experience with real-time, streaming, or on-chain/crypto market data.

Knowledge of MCP or other AI-native/agent integration principles.

Experience building developer platforms, SDKs, or shared component libraries. Familiarity with CI/CD, Docker, and observability tools such as Datadog, Grafana, or ELK.

Further details regarding data processing in the context of the hiring process can be requested by contacting us directly.