Jobs at Djinni

Hi there!

We’re excited to introduce you to Softsich — a young, ambitious, and fast-growing company that creates innovative digital products and confidently expands its presence in global markets.

We are looking for a proactive and result-driven Affiliate Manager to join our team and strengthen our affiliate marketing direction. In this role, you will be responsible for building and developing long-term partnerships, attracting new affiliates, optimizing traffic quality, and driving revenue growth. You will work closely with the marketing, product, and analytics teams to scale performance and ensure sustainable growth across global markets.

Responsibilities:

• Building relationships with partners: Maintaining and developing cooperation with existing partners. Ensuring profitability growth through active communication and analysis of partner campaigns.
• Attracting new partners: Searching for and connecting new partners to expand the network. Conducting negotiations and signing profitable agreements.
• Performance analysis: Continuous monitoring and analysis of partners' performance. Defining KPIs for partners and monitoring their implementation. Providing regular reports and recommendations for improving performance.
• Budget management: Control of the marketing budget and achievement of maximum ROI. Collaboration with analysts to optimise cost efficiency.
• Brand promotion: Participation in industry events (exhibitions, conferences) to represent the company. Development and implementation of a strategy to promote the affiliate programme brand.
• Team collaboration: Close interaction with Retention, Support, Outbound, Product, and Analytics departments to optimise the sales funnel.
• Conference travel: Mandatory participation in marketing conferences to establish new contacts, study the market, and present the product.

Requirements:

• 2+ years of experience in affiliate marketing within the global markets
• Strong understanding of online marketing, affiliate tracking, and analytics tools.
• Excellent negotiation and communication skills. That requires an advanced English level.
• Data-driven mindset with the ability to analyze and interpret affiliate performance data.
• Proven ability to meet or exceed targets and KPIs.
• We only consider Ukrainian or Russian-speaking candidates

We offer:

• Flexible schedule and remote format or office in Warsaw — you choose.
• 24 paid vacation days, sick leaves, and health insurance (UA-based, other locations in progress).
• A supportive, friendly team where knowledge-sharing is part of the culture.
• Coverage for professional events and learning.
• Birthday greetings, team buildings, and warm human connection beyond work.
• Zero joules of energy to the aggressor state, its affiliated businesses, or partners.

Send your CV now to learn more!

A product company is looking for a Senior C++ Developer to work remotely. 
 

The company provides ultra-low latency financial backbone systems to tier-1 banks in the EU and the US. The company is certified by more than 100 Forex trading platforms, accounting for over 95% of currency liquidity, and provides a comprehensive solution using a single API for both Maker and Taker. These systems allow the bank to serve a multitude of algorithmic traders, providing market access and trading, risk management, price matching, liquidity aggregation, etc.
The company has created a product that allows international companies and banks to conduct instant transactions on global currency exchanges with minimal time delay using its own low-latency gateway. This solution is an advantage for them to be ahead of competitors by fractions of a millisecond.

Two rounds of interviews are planned, including with the company's CEO.
The team consists of 17 C++ developers.
 

Experience in server development on C++ (Linux), multithreading required.
Will be a plus: with High-load systems.

From Team Lead to Product Leader: are you ready for the next level?
Many engineering leaders reach a point where “another project” stops being exciting.
 Deadlines change, scopes shrink, teams rotate — and eventually you deliver a finished feature… but not real impact.
A true product is different.
 It lives. It grows. It has real users, real scale, and a long-term future.

Right now we’re looking for a Python Team Lead to take ownership of a product like this — a mature, successful SaaS platform used daily by thousands of organizations in the US.

What makes this role truly interesting for a Lead:

🔹 Full ownership, not task execution
 You lead a cross-functional squad of 5–7 engineers (backend, frontend, QA) and own the entire lifecycle: architecture → development → release → production stability.
🔹 Real influence
 This is not “just managing tickets.” You’ll shape technical direction, work directly with architects and product managers, and impact how the platform evolves.
🔹Serious engineering scale
 Modern stack: Python (Django + FastAPI), microservices, cloud infrastructure, fully automated CI/CD, high-availability distributed systems. A product where things must work 24/7.
 🔹Hands-on technical leadership
 You remain a strong technical expert while mentoring engineers, improving processes, and building a high-performing team.
🔹Remote-first culture
 Fully remote environment built on trust, autonomy, and strong engineering collaboration.

This role fits leaders who:
🔹 BSc in Computer Science or equivalent;
🔹 8+ years of software engineering experience, including 5+ years of Python in production;
🔹 3+ years in an R&D team lead, leading cross-functional teams (backend, frontend, and QA) in a production environment;
🔹 Proven experience managing and leading remote teams in a fully distributed, remote-only environment;
🔹 Proven experience working in a product-based company (not project/outsource);
🔹 Strong experience with Python backend development in a SaaS environment, including cloud-based, scalable, and high-availability distributed systems;
🔹 Strong knowledge of REST APIs, microservices, asynchronous programming, and testing;
🔹 Hands-on experience with CI/CD pipelines and Infrastructure-as-Code (e.g., Terraform, Helm);
🔹 Solid understanding of software architecture, design patterns, and technical trade-offs;
🔹 Proven experience delivering long-term SaaS and customer-facing products with full end-to-end responsibility — from design to production and ongoing support.
🔹 Excellent communication skills and high proficiency in English.

Why Join Us?

At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products — and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.

From day one, you’ll get:

🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

We’ll keep it respectful, clear, and personal from start to offer. You’ll always know what project you’re joining — and how you can grow with us.

Everyone’s welcome

Diversity makes us better. We create a space where you can thrive as you are.

Ready to build something meaningful?

Let’s talk. Your next big adventure might just start here.

We are looking for a B2B Marketing Manager who will drive consistent brand presence across digital and offline channels. Backed by a strong B2C legacy and technically advanced products (platform modules, payments, CRM, risk management, etc.), your mission is to enhance brand awareness, support business development, and strengthen lead generation through coordinated marketing, event, and media initiatives.

You will own and execute the B2B marketing strategy — covering online and offline brand activities, paid advertising (Google Ads, LinkedIn Ads), and email marketing (newsletters, automations, single sends).

Key Responsibilities

• Event Marketing: Plan and execute offline brand activities at industry events with internal teams and contractors. Oversee stand creation, staffing, media support, and distribution of merchandise and printed materials.
• Creative Production: Collaborate with content and design teams to produce banners, videos, and other visual materials as needed.
• Campaign Management: Launch, optimize, and analyze B2B campaigns (always-on and on-demand).
• Email Marketing: Set up automations, newsletters, and one-off campaigns. Create and maintain email templates and communication flows.
• Paid Advertising & Media Buying:: Manage, optimize, and analyze paid campaigns across Google Ads, LinkedIn Ads, and display/video networks.
• Website Management: Develop and optimize landing pages, forms, pop-ups, and banners to improve conversion and lead acquisition.
• Content Support: Provide briefs and technical assignments for the creation of sales and marketing content (blog posts, case studies, product pages).
• Reporting: Collect, aggregate, and analyze marketing data. Track KPIs and prepare performance reports.

Requirements

• 3+ years of experience in B2B marketing, preferably in iGaming, SaaS, or Fintech.
• Strong understanding of Inbound vs. Outbound marketing and the B2B sales funnel.
• Proven ability to launch, optimize, and analyze marketing campaigns from scratch.
• Hands-on experience with Google Ads, LinkedIn Ads, X Ads, and Meta Ads.
• Experience operating ESPs such as SendGrid, Mailchimp, Lemlist, etc.
• Analytical mindset with experience in Google Analytics 4, Google Tag Manager,  Power BI, Tableau, Looker Studio, or similar.
• Ability to brief and manage content creation for decks, one-pagers, brochures, case studies, and gated content.
• Experience managing website and landing page production, including collaboration with design and dev teams.
• Hands-on experience with WordPress CMS.
• Ability to work in cross-functional teams and multiple stakeholders.
• English level: Upper-Intermediate or higher.

Nice to Have

• Experience in event marketing, including exhibitions, stand management, and on-site operations.
• Familiarity with iGaming industry trends and major events.
• Experience producing webinars, podcasts, or interviews.
• Media buying experience and understanding of display advertising on external platforms.
• CRM management experience.

The product company is looking for a Lead C++ Developer to work remotely. 

The company provides ultra-low latency financial backbone systems to tier-1 banks in the EU and the US. The company is certified by more than 100 Forex trading platforms, accounting for over 95% of currency liquidity, providing a comprehensive solution using a single API for both Maker and Taker. These systems allow the bank to serve a multitude of algorithmic traders, providing market access and trading, risk management, price matching, liquidity aggregation, etc.
The company has created a product that allows international companies and banks to conduct instant transactions on global currency exchanges with minimal time delay, using its own low-latency gateway. This solution is an advantage for them to be ahead of competitors by fractions of a millisecond.

Two rounds of interviews are planned, including with the company's CEO.
The team consists of 17 C++ developers.
 

Required: experience in leading a team, experience in server-side development in C++ (Linux), multithreading.
It will be a plus: with High-load systems and on FinTech projects.

Our Customer:

Our client is a fast-growing tech company that builds innovative web solutions. They are looking for a talented Front-end Developer to design and deliver impactful features, contribute to new services, and help advance their platform. The team values collaboration, learning, and continuous innovation.

Your tasks:

• Develop and maintain Angular-based web applications.
• Implement testing best practices to ensure high-quality code.
• Identify performance bottlenecks and optimize front-end functionality.
• Collaborate closely with backend services and APIs.
• Mentor junior developers and help grow the frontend team.
• Work alongside product managers and senior leadership to deliver features.
• Ensure high availability and reliability of the product, including participating in on-call rotations.
• Continuously learn, experiment, and share knowledge with the team.

Required Experience and Skills:

• 5+ years of experience in front-end development.
• Strong expertise in Angular and front-end architecture for large-scale applications.
• Solid understanding of web technologies and browser behavior.
• Experience building scalable, highly responsive, and reliable web apps.
• Passion for UI/UX and attention to detail.
• Ability to thrive in a fast-paced, collaborative environment.
• Excellent communication skills and ability to translate requirements into solutions.
• English level Upper-Intermediate or higher.
• BSc in Computer Science or equivalent practical experience.

Would be a plus:

• Hands-on experience with Angular CLI, testing frameworks (Jasmine, Karma), and Webpack

Working conditions

• 5-day working week, 8-hour working day;
• Remote work.

At WhiteTech, we empower businesses in the financial ecosystem with cutting-edge white-label and SAAS solutions.

Our comprehensive suite of tools is tailored for EMI, PSP, e-commerce, and open banking platforms. With WhiteTech, clients gain access to a platform designed for flexibility, scalability, and seamless integration.

Our mission is to help businesses unlock their full potential in a rapidly evolving financial landscape.

We are excited to invite a Senior Talent Acquisition Manager to join our progressive Recruitment team. We seek a driven professional who is passionate about identifying top talent and has a proven ability to excel in a dynamic, results-oriented environment. In this role, you will lead the identification, connecting with, and recruiting of top-tier IT professionals who will drive the company’s growth and achieve its strategic goals.

Key responsibilities:

• Be responsible for the Entire Recruitment Lifecycle, from job posting and candidate sourcing to offer negotiation;
• Develop and implement effective recruitment strategies to attract IT talent;
• Source candidates and evaluate applicant qualifications;
• Conduct initial screenings and interviews to assess candidate qualifications and fit and check references;
• Maintain and uphold Talent Acquisition process workflow and compliance;
• Be data-driven and use recruitment reporting and analytics to influence decisions;
• Collaborate with hiring managers to understand their needs to identify the right talent;
• Ability to monitor and analyze vacancies, pipeline, diversity, and quality of hire;
• Deliver a seamless candidate experience by maintaining clear and consistent communication throughout the recruitment process;
• Proficiency in using applicant tracking systems (ATS) and other recruitment tools to streamline processes and maintain accurate candidate records is required;
• Actively promote the company’s culture, values, and unique selling points to attract top talent and enhance the employer brand within the tech community;
• Ensure a smooth transition for new hires by coordinating with HR and hiring managers to facilitate onboarding processes.

Requirements & Skills:

• 💼 3+ years of experience in full-cycle recruiting for technical and non-technical roles, in the financial sector.
• 🔍 Strong understanding of the recruitment process (candidate sourcing, screening and initial interviews, offer negotiation, and reference checking)
• 💻 Strong understanding of IT roles, technologies, and market trends
• 🛠 Proficiency in using recruitment software and applicant tracking systems (ATS)
• 🎯 Exceptional assessment and interviewing skills and a strong command of assessment and selection methodologies, instruments, and processes
• 🕵️‍♂️ Experienced in sourcing passive talent
• ⏱ Excellent time management, follow-through, and organizational skills
• 🤝 Demonstrated experience working in a fast-paced, highly team-oriented environment
• 🔄 Ability to handle multiple priorities with a high degree of accuracy and ability to delegate work as needed
• 🧠 Strategic thinking and problem-solving skills
• 📝 Attention to detail and ability to maintain accuracy in candidate records
• 🌟 High level of responsibility, result-focus, and attentiveness
• 🚀 Proactive approach and curiosity
• ✅ At least an Upper Intermediate level of English

Our recruitment process typically follows these stages:

1. Application screening
2. Interview Stages (2 weeks):
   • Prescreening call 
   • Test Task
   • Final Interview with Talent Manager
3. Job Offer
4. Referrals: Employment and Background Check

The project develops disruptive robotic solutions for warehouse automation and supply chain transformation, drives results and focuses on customer satisfaction. Our modular and scalable solutions utilize existing space and high-speed robotics combined with proprietary software and technology. Since forming in 2007, it has grown to over 700 employees in North America and supports an impressive, high-profile customer base. We seek candidates who are passionate about our solution and approach problem solving with a creative mind and a commitment to excellence. If you seek a challenge and want to impact the way the world distributes product from manufacturers to store shelves, we invite you to join our team.

Requirements:

• Experience with PLC programming e.g. Rockwell, Siemens, Schneider etc.

• Experience with the IEC 61131-3 programming languages, especially ladder logic, sequential function chart and structured text.

• Demonstrated problem solving and troubleshooting skills, ideally in a service / support engineering context.

• Upper-intermediate English level

Desired

• Experience with user interfaces e.g. FactoryTalk View, WinCC.

• Experience with industrial robot programming e.g. ABB, Fanuc.

Responsibilities:

1. Provide remote technical support to site operators during downtime events, assisting them in returning the equipment to an operational state.

2. Investigate in-service technical problems, assembling information and performing root cause analysis.

3. Develop and validate solutions to issues discovered with existing equipment in-service, which can include PLC logic, industrial robot logic and user interfaces.

4. Develop troubleshooting guides and train equipment operators in their use.

5. Develop and maintain a database of troubleshooting guides.

6. Work schedule is shift based

Headway Inc is a global tech company, revolutionizing lifelong learning by creating digital products for over 150 million users worldwide. Our mission is to help people grow. We’re proud to be ranked 4th among the World’s Top EdTech Сompanies by TIME magazine. We believe lifelong learning should be accessible, personalized, and impactful to each individual. That’s how we change the world and why we bring together exceptional minds.

The core of our achievements is our team. We believe in people and shared values SELECT. That’s why, together with Pavlo Orlenko, Head of Product Marketing at Headway by Headway Inc, we’re looking for a Product Marketing Manager to drive CR, LTV, ROI, and new revenue growth by owning a web-based thematic direction end to end.

The product and team you will be working with:

Headway is our flagship app, offering summaries of nonfiction bestsellers, daily insights, and gamified challenges. Headway is the world’s most downloaded book summary app and has been featured as App of the Day in over 30 countries, including the US, the UK, and Canada.

You’ll join a cross-functional Product Marketing team at the intersection of marketing, product, and analytics, focused on sustainable growth through a structured A/B testing approach. Within this setup, we’re actively developing web-based thematic directions — and you’ll own one of them end to end.

The challenge you’ll take on:

As part of a tight creative trio — User Acquisition, Creative Marketing, and Product Marketing — your challenge is to unlock and scale a thematic direction end to end. From ad messaging and web funnel experience to conversion and monetization, you’ll own a coherent user narrative, understand cause-and-effect across the funnel, and apply best market practices to drive CR, LTV, ROI, and sustainable new revenue growth within a large thematic unit.

This job is perfect for you if you:

• Want real ownership and focus — owning one web-based thematic direction end to end and directly impacting business growth.
• Enjoy working in a fast, execution-driven environment, where ideas quickly turn into experiments and measurable results.
• Want to work in a cross-functional setup, closely collaborating with User Acquisition and Creative Marketing Specialists.
• Value strong team support, working with a product designer, frontend engineer, analyst, and market intelligence specialists dedicated to growth and data.
• Think in experiments and systems, using structured A/B testing to understand cause-and-effect and scale what works.

• Want to grow within a product ecosystem, where collaboration with experienced PMs and marketers accelerates learning and impact.

   

What will you do:

• Own one theme: understand user needs, pains, and motivations, and shape a clear value proposition for each segment.
• Design and optimize the full user journey together with User Acquisition and Creative: creatives, web funnels, quizzes, landings, paywalls, and upsells.
• Run reverse funnel engineering: identify gaps between the promise in ads and the actual product experience, and close them through A/B testing and new solutions.
• Build a shared hypothesis backlog with the team, prioritize it, launch experiments, and analyze results together with analytics.

• Work with key metrics: CR across all funnel steps, ARPU, LTV/CAC, as well as overall marketing spend and new revenue volume.

   

What do you need to join us:

• 2–3+ years of experience in Product Marketing, Growth, User Acquisition, or Creative Marketing — with hands-on experience working with web.
• Confidence in execution under uncertainty: no fear of acting without full clarity, combined with the ability to build confidence through data, prioritization, and hypothesis validation.
• Experience in day-to-day collaboration within a “creative trio” (Product Marketing, User Acquisition, Creative Marketing) is a strong plus.
• Hands-on experience working closely with UX specialists, analysts, and engineers on a daily basis.
• Strong understanding of how analytics, marketing, and product come together to drive growth and business results.

• Alignment with the values of our team (SELECT).

   

What do we offer:

• Work within an ambitious team on a socially impactful education product.
• An office with a reliable shelter, generators, satellite internet, and other amenities.
• Access to our corporate knowledge base and professional communities.
• Personal development plan.
• Compensation for English language learning, external training, and courses.
• Medical insurance and full sick leave compensation.
• Company doctor and massage in the office.
• Sports activities: running, yoga, boxing, and more.
• Corporate holidays: we go on a week-paid holiday to rest and recharge twice a year.

• Supporting initiatives that help Ukraine. Find out more about our projects here.

   

Working schedule

This is a full-time position with a hybrid remote option. It means that you can decide for yourself: whether you want to work from the office, remotely, or combine these options.

Are you interested?

Send your CV!

Role description
The OVO Group’s mission is to drive progress towards net zero carbon living. We’re a collection of companies with a single vision: to power human progress with clean affordable energy for everyone. At OVO, we are on a mission to solve one of humanity's biggest challenges, the climate crisis. And we know it takes all of us to change the world. That's why we need diverse people from all gender identities, ethnicities, ages, sexual orientations, life experiences and backgrounds to join us.

Being an Engineer here at OVO means being at the forefront of building innovative solutions that drive the sustainable energy revolution. As a part of our talented team, you'll collaborate on cutting-edge initiatives, tackle complex challenges, and make a meaningful impact in creating a greener future. Join us and unleash your expertise to transform the energy industry and pave the way for a sustainable tomorrow.

Responsibilities
Development of new features and improvements
Adopting and contributing to CI/CD pipeline and ways of working
Delivering product value iteratively
Ensuring best practices around observability and security
Working closely with other developers to ensure knowledge sharing
Designing and developing new platform functionality, from inception to deployment
Building on top of and integrating the existing estate
Helping to refine and deliver work items across our Agile delivery process
Contributing to efficiencies and improvements in Ways of Working
Designing, building, and maintaining efficient, reusable, and reliable code.
Sharing new ideas, techniques and methodologies.

Requirements
5+ years of software development experience.

Strong .NET skills and experience building web solutions.

Experience with React, 

Experience with clouds (AWS is preferred), Kubernetes, and Docker.

Understanding of ArgoCD or GitOps is a plus.

Understanding of BDD is also a plus.
Microservices /Serverless
Infrastructure as code
Event-driven architectures, RESTful interfaces and SQL databases
Experience using TDD principles would be an advantage
Experience in Data modelling/Database engineering would be a plus
Upper-intermediate English
Experience working in an Agile development process
Critical thinking and problem-solving skills

LITSLINK is looking for a motivated Sales Trainee / Junior Sales Manager who wants to start a career in IT services sales and learn how to acquire clients via different outbound channels and platforms. This role is ideal for candidates with strong communication skills, interest in IT, and a results-driven mindset. You will go through structured onboarding and hands-on training with real projects and mentorship from experienced sales managers.

Requirements

• Strong interest in IT services and software development
• English level: Intermediate+ (written & spoken)
• Good written communication skills
• Willingness to learn sales processes and work with KPIs
• Proactive, responsible, and result-oriented mindset
• Basic understanding of B2B communication or client interaction
• Readiness to work with cold outreach on platforms (e.g. Upwork, LinkedIn or similar)

Nice to have

• Any experience with freelance platforms (Upwork or similar)
• Previous experience in sales, lead generation, customer support, or recruitment
• Basic understanding of web/mobile development and tech stacks
• Familiarity with SDLC
• Experience with CRM tools (HubSpot, Pipedrive, etc.)

Responsibilities

• Learn how to sell IT services (software development, dedicated teams, UX/UI) via outbound channels and platforms
• Search for relevant projects and assist with proposal writing
• Communicate with leads and support pre-sales activities
• Qualify incoming requests and help clarify client requirements
• Support estimation and deal-closing process together with mentors
• Maintain CRM and sales reports
• Follow internal sales processes, templates, and guidelines
• Gradually start bringing first clients to the company

We offer

• Structured onboarding and mentorship with growth to Middle Sales Manager
• Commission-based income model with strong earning upside for top performers
• Flexible, remote-first work format
• High level of flexibility (non-exclusive cooperation model, subject to KPIs)
• Opportunities for international collaboration and future business trips
• Legal and organizational support for international cooperation
• Professional growth in IT outsourcing / outstaffing environment
• Supportive sales and delivery teams

Hiring process

• Screening call with a recruiter
• Interview with Head of Sales / Business Development
• Training program onboarding and cooperation offer

Important:
● Ability to search clients on Upwork, Linkedin, Facebook;
● Skill of finding the right words during negotiations;
● Desire to grow in IT field and achive new goals.

Requirements:
● Experience in lead generation or sales for at least 1 year;
● Proactivity and focus on achieving results and KPIs;
● Desire to develop and grow as a professional;
● Excellent communication and negotiation skills;
● High level of organizational skills and the ability to work in a fast-paced environment.

Responsibilities:
● Active search and attraction of new customers in the B2B segment;
● Building chains of contacts: creating scripts and message templates, sending them and responding to the first contacts with leads via LinkedIn, Facebook, E-mail and other channels;
● Conducting negotiations with potential customers and organizing meetings for Sales managers;
● Entering and updating data in the CRM system for efficient customer and contact record keeping;
● Enriching the base of potential customers using tools such as Snov.io, Sales Navigator and others.

Working conditions:
● The number of messages/letters sent;
● Number of scheduled meetings/calls with Sales managers.

Working conditions:
● Competitive salary;
● Transparent model of professional and career growth;
● 5/2 working week with a flexible schedule;
● Ability to work in the office or remotely;
 

Now our team has a position for Junior Lead Generation Manager.

You’re good with:
• at least Intermediate English, speaking and writing skills;
• client-oriented approach;
• understanding of IT sphere (Software Development process, modern technologies...);
• basic knowledge of sales techniques (B2B market).

It will be a plus:
• previous lead generation experience;
• previous experience as sales manager.
• previous experience as customer support.

Your responsibilities will be:
• Search for new customers;
• Identify prospective clients needs and communicate with the customer via email and Linkedin;
• Manage a part of sales cycle;
• Prepare proposals for the potential customers;
• Work closely with the presales team.

What the company offers:
• Constant and interesting work with foreign clients;
• Flexible working hours;
• Annual paid 10 days vacation and paid 5 sick days.

• Cash bonuses after clients onboarding

About us
We are building a high-load decentralized platform at the intersection of blockchain and fintech: on-chain data indexing, trading automation, and integrations with DeFi and Web3.

Responsibilities

• Design and develop backend architecture: APIs, queues, indexers, bots/workers for on-chain event processing.
• Develop event-driven architecture with idempotency, exactly-once delivery (transactions + deduplication), outbox/inbox, retries, and DLQ.
• Integrate with Web3/EVM/Solana: read and process events, interact with smart contracts, manage nonces, handle reorg/finality, and multi-chain transactions.
• Work with Subgraph (The Graph): design schemas, implement TypeScript mappings, and optimize blockchain data indexing.
• Develop DeFi integrations: Uniswap v2/v3, AMM pools, pricing, liquidity, routing, slippage/MEV resistance.
• Optimize performance: profile hot paths, migrate critical components to Rust, ensure async/tokio efficiency, manage backpressure.
• Ensure observability and reliability: metrics/traces/logs (Prometheus, Grafana, OpenTelemetry), SLO/SLI tracking, degradation and fallback mechanisms.

• Provide leadership: define technical vision, mentor developers, conduct code reviews, prioritize backlog, and introduce best engineering practices.

   

Requirements

• 5+ years of commercial backend development experience.
• 3+ years in blockchain/DeFi (EVM, Solana, on-chain data, smart contracts, integrations).
• 2+ years in a Tech Lead or Team Lead role.
• Strong Rust experience: async/tokio, network programming, performance profiling.
• Proficiency with queues/events: RabbitMQ/AMQP, delivery guarantees, retries, DLQ, message contracts.
• Experience with Blockchain/DeFi: ABI, events, integration with Solidity and Solana programs, multi-chain interactions.

• Knowledge of Subgraph (The Graph): schema design, mappings, indexing optimization.

   

Nice to have

• Production experience with Rust (tokio, async, tracing), low-level performance profiling.
• Knowledge of Go (CLI/tools), ETL pipelines for on-chain data, DWH (ClickHouse/BigQuery).
• Experience with Layer 2 (Optimism, Arbitrum), cross-chain bridges/protocols.
• Experience with MEV, mempool monitoring, gas optimization.
• Familiarity with Web3 tools: Foundry, Hardhat, Ethers.js, web3.js, Anchor (Solana).

Requirements:

• Bachelor’s or Master’s degree (Mathematics, Statistics, IT, Analytics)
• 2–3 years of experience as a Risk/Fraud/Data Analyst in anti-fraud products for iGaming or E-commerce (such as Seon, LexisNexis, Covery, Kount, Riskified, Forter, Feedzai, etc.) or experience working with these systems*
• Experience in rule engine configuration — creating, testing, and optimizing rules based on transactional and behavioral data
• Understanding of scoring principles: knowledge of risk assessment models and fraud probability evaluation methods
• Ability to work with large datasets and identify fraud patterns
• Experience in building and visualizing reports
• Strong analytical thinking and attention to detail

• English level: Upper-Intermediate or higher

   

Will be a plus:

• Experience building an anti-fraud system from scratch or optimizing an existing one
• Experience in the crypto sector
• Knowledge of basic KYC principles
   

Key Responsibilities:

• Develop and maintain scoring models for customer/transaction risk assessment
• Configure, test, and optimize risk rules
• Monitor scoring accuracy and rule efficiency metrics
• Create and maintain reporting dashboards and analytics
• Analyze fraud incidents and develop fraud prevention strategies
• Collaborate with cross-functional teams