Jobs at Djinni

TodaPay is an international fintech company operating in the digital payments and financial infrastructure space across multiple jurisdictions. We support high-growth payment operations with multi-currency transactions, crypto payments, and complex corporate structures.

We are looking for a detail-oriented and proactive Accountant to join our Finance team and support core accounting operations, financial reporting, payroll processing, and coordination with external accountants and auditors across jurisdictions.

We are looking for a skilled Platform Engineer to join our payments team. In this role, you will be responsible for integrating and maintaining payment providers across multiple platforms, resolving technical issues, and developing robust payment solutions. You will work closely with product, QA, and business teams to ensure seamless payment flows for our customers worldwide.

Key Responsibilities
• Configure payment providers across multiple platforms, including PayAdmit, Corefy, and similar PSP/orchestration solutions.
• Manage end-to-end setup of payment methods, merchant accounts, routing rules, and cascading logic within payment platforms.
• Investigate, debug, and resolve bugs and issues related to payment processing, transaction failures, and provider integrations.
• Build and maintain RESTful APIs and webhooks to connect internal systems with third- party payment gateways.
• Monitor platform performance, transaction success rates, and provider uptime; proactively identify and address bottlenecks.
• Collaborate with QA engineers to write and maintain automated tests for payment flows.
• Participate in code reviews, technical discussions, and contribute to architectural decisions.
• Write clear technical documentation for integrations, configurations, and internal processes.

Required Qualifications
• 2+ years of experience in software development or platform engineering, with a focus on payment systems.
• Hands-on experience configuring at least one payment orchestration or PSP platform
(e.g., payAdmit, Corefy, Checkout.com, Stripe, Adyen, or similar).
• Solid understanding of REST APIs, JSON, and webhooks.
• Experience with debugging tools, log analysis, and monitoring platforms.
• Strong analytical and problem-solving skills with attention to detail.
• Good communication skills in English (written and verbal).

Nice to Have
• Familiarity with multiple payment platforms and provider ecosystems.
• Knowledge of PCI DSS compliance requirements and secure coding practices.
• Experience with cloud infrastructure (AWS, GCP, or Azure).
• Familiarity with containerization tools such as Docker and Kubernetes.
• Understanding of financial reconciliation, chargebacks, and settlement processes.
• Develop and maintain integration code for payment providers using Java, PHP, and/or Node.js.
• Proficiency in one or more backend languages: Java, PHP, or Node.js.

 We Offer

• Opportunity to work in a fast-growing international fintech ompany
• Professional growth opportunities alongside with company 
• 24  paid vacation days per year and 5 paid sick leave days per year
• 10 Public holidays days 
• An opportunity to work full remote or hybrid flexibility 
• Collaborative and friendly team 
• Professional education budget after 6 months working in the company 
• Birthday gift bonus for all our employees 

TodaPay is an international fintech company operating in the digital payments and financial infrastructure space across multiple jurisdictions. We support high-growth payment operations with multi-currency transactions, crypto payments, and complex corporate structures.
We are looking for a detail-oriented and proactive Accountant to join our Finance team and support core accounting operations, financial reporting, payroll processing, and coordination with external accountants and auditors across jurisdictions.

Requirements
Experience
• 3+ years in a Business Analyst or Systems Analyst role
• Required: experience in fintech, payment systems, or banking
• Experience with payment processes: acquiring, processing, PSP/PayFac — preferred
• Participation in Agile/Scrum teams: grooming, planning, retrospectives

Technical Knowledge
• Proficiency in BPMN 2.0, UML (Use Case Diagram, Sequence Diagram, Activity Diagram)
• Understanding of the transaction lifecycle: auth → capture → settlement → reconciliation
• Knowledge of dispute resolution and chargeback processes (Visa / Mastercard rules)
• Experience with REST API documentation: reading, writing, testing via Postman / Swagger
• Basic understanding of PCI DSS scope, AML/KYC requirements in the context of payment systems
• Proficiency with tools: Confluence, Notion, Jira/Linear, Miro/Lucidchart

Personal Qualities
• Systems thinking: sees the process as a whole, not just within the scope of a task
• High attention to detail in specifications and edge cases
• Proactive: asks the right questions, doesn't wait for a ready-made spec
• Clear written and verbal communication in English
• Comfortable at the intersection of business and technology; doesn't shy away from developer
conversations

Responsibilities
Requirements & Documentation
• Gathering business requirements from stakeholders: commercial, risk, compliance, merchants
• Writing functional specifications, user stories, and acceptance criteria (Definition of Done)
• Modeling business processes in BPMN 2.0 notation — AS-IS and TO-BE
• Maintaining and updating product documentation in Confluence / Notion

Payment Processes
• Describing and optimizing payment flows: authorization, clearing, settlement, refunds, chargebacks
• Analyzing and documenting transaction routing logic and waterfall strategies
• Gap analysis during platform consolidation and merchant migration
• Supporting integrations with acquirers and PSP providers via REST API / ISO 8583

Team Collaboration
• Active participation in grooming, sprint planning, UAT, and demos
• Close collaboration with Product Owner, developers, and QA
• Communication with compliance/risk on regulatory requirements (PCI DSS, AML/KYC)
• Preparing training materials for operations teams and merchants

Nice to have
• Understanding of high-risk market specifics and regulatory constraints
• Knowledge of financial messaging protocols (ISO 8583/ISO 20022)
• Hands-on experience describing and automating rolling reserves and dispute management processes
• Participation in consolidation or re-platforming projects in fintech

We offer 

• Opportunity to work in a fast-growing international fintech company
• Professional growth opportunities alongside with company 
• 24  paid vacation days per year and 5 paid sick leave days per year
• 10 Public holidays days 
• An opportunity to work full remote or hybrid flexibility 
• Collaborative and friendly team 
• Professional education budget after 6 months working in the company 
• Birthday gift bonus for all our employees

We’re growing our team for an international product company in the Embedded Vision and AI space. We’re looking for a Technical Product Owner to work with technical requirements, the development team, and customers on products that save lives. Awesome conditions, remote.

Main Responsibilities

— Define and communicate the product vision and strategy, ensuring strong alignment with business goals and technical constraints

— Own and manage the product backlog end-to-end, ensuring it is always visible, transparent, and prioritized according to business value, technical needs, and strategic objectives

— Ensure user stories prioritization, completeness and acceptance criteria are clear

— Act as the primary bridge between business stakeholders and engineering teams, ensuring shared understanding of requirements, constraints, and dependencies

— Translate business needs into detailed technical user stories and requirements

— Ensure technical documentation is created and maintained for internal and external stakeholders

— Partner with QA, DevOps, Support, Sales Engineering, and Customer Success to ensure smooth releases and high customer satisfaction

— Participate in release planning and validate technical readiness for deployment

— Support engineering teams by clarifying requirements, defining success criteria, and ensuring alignment across teams

— Contribute to the development of the company’s product roadmap, ensuring alignment with overall business strategy

— Monitor market trends, customer needs, and technological advancements to inform product planning and prioritization

Mandatory Requirements

— Bachelor’s degree in computer science, Computer Engineering, or other related fields

— 3+ years of experience in product management or product ownership in an engineering-focused organization

— Proven experience managing and prioritizing a product backlog, writing clear user stories, and leading agile ceremonies

— Hands-on experience working closely with software engineering teams, preferably including embedded and cloud

— Understanding of software architecture concepts, API design, data flows, and technical dependencies

— Demonstrated ability to translate complex business needs into detailed technical requirements, functional specifications, and integration workflows

— Experience working with cross-functional teams (engineering, DevOps, QA, and product teams)

— Familiarity with customer facing technical documentation, such as API specifications and system design

— Strong analytical and problem-solving skills, with experience identifying technical risks, constraints, and trade-offs

— Experience with CI/CD pipelines, cloud environments (AWS ideal), and modern development practices is an advantage

— Experience in a SaaS, IoT, or platform/SDK environment is preferred

— Bonus: exposure to embedded systems, camera/video pipelines, AI/ML, or edge computing is highly advantageous

— Flexibility to manage time zone difference with international teams

— Some international travel may be required

We offer

– Stable high salary

– A great team of like-minded people

– A package of holidays, sick leave, and public holidays

– Remote work flexibility is available

As we continue to grow rapidly, we are looking for a talented and creative Sound Designer to join our team and help bring our game worlds to life through immersive and high-quality audio.

Requirements:

• 3+ years of experience as a Sound Designer, preferably in the iGaming, casino, or slot games industry.
• Proficient in one or more major DAWs (Reaper, Ableton, FL Studio, Pro Tools, etc.).
• Strong understanding of sound design principles and audio integration in games.
• Skilled in working with audio libraries and creating custom SFX.
• Availability of a portfolio 
• Willingness to complete a small test task

Key Responsibilities:

• Create and integrate sound effects (SFX) for slot games, bonus rounds and in-game events.
• Develop and maintain scalable audio pipelines and internal workflows.
• Select, adapt, and process sounds from libraries or design original audio content from scratch.
• Optimize audio files for performance across various platforms (iOS, Android, WebGL, HTML5).
• Collaborate closely with game designers and developers to ensure seamless and impactful audio integration.

What we offer:

• You can work in any part of the world (remote work)
• Work in an international company
• An opportunity to join a fast-growing team of professionals and a cool product
• Stable and decent salary (according to the results of the interview)
• Opportunity for career and professional growth
• An opportunity to implement your ideas 
• Ability to implement ambitious projects
• Promptness of decision-making, lack of bureaucracy

If our vacancy appeals to you, we are looking forward to your CV and portfolio!
 

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications, and regulatory technologies. 

We are looking for a SecOps Engineer!

Requirements:

- Strong background in network security (3+ years of hands-on experience)
- Solid practical experience with cloud networking (AWS/Azure/GCP) — VPC, Security Groups, Route Tables, Firewalls, Network Policies
- Confident proficiency with Terraform (or similar IaC tools) in production environments
- Experience with Linux server hardening and auditing
Good understanding of Zero Trust principles and modern cloud networking approaches
- Knowledge of core cloud security services (GuardDuty, Inspector, Security Hub, IAM, etc.)

Will be plus:

- Relevant certifications: AWS Certified Security - Specialty, Azure Security Engineer Associate, GCP Professional Cloud Security Engineer, CCNP Security
- Experience with Kubernetes network security (NetworkPolicy, Cilium, Calico, Istio)
- eBPF-based tools (Falco, Tetragon)
- Policy as Code experience (OPA/Gatekeeper, Sentinel, Kyverno)
- Experience working with large-scale Terraform projects (modules, Terragrunt, best practices)
- Experience performing cloud security assessments and audits

Responsibilities:

- Design, implementation, and maintenance of secure cloud network architecture in a multi-account environment
- Cloud network segmentation, traffic control between accounts, Transit Gateway / Hub-Spoke models, PrivateLink, VPC Peering
- Implementation of Zero Trust Network Access principles at the cloud infrastructure level
- Development and maintenance of secure Infrastructure as Code (primarily Terraform + security policies)
- Auditing, hardening, and security monitoring of Linux hosts (CIS Benchmarks, auditd, osquery, etc.)
 - Automation of security controls and compliance (SCP, IAM policies, GuardDuty, Security Hub, etc.)
- Participation in threat modeling for cloud infrastructure
- Continuous improvement of Cloud Security Posture (CSPM) and Network Security Posture
- Close collaboration with Infrastructure, Platform, and DevOps teams on network security and IaC matters

Our benefits to you:
🍀 An exciting and challenging job in a fast-growing business group, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance, and more
🤝🏻 Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed
🧑🏻‍💻 Modern corporate equipment based on macOS or Windows, and additional equipment is provided
🏖️ Paid vacations, sick leave, personal events days, days off
💵 Referral program — enjoy cooperation with your colleagues and get a bonus
📚 Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences
🎯 Rewards program for mentoring and coaching colleagues
🗣️ Free internal English courses
✈️ In-house Travel Service
🦄 Multiple internal activities: online platform for employees with quests, gamification, presents and news, clubs for movie/book/pets lovers, and more
🎳 Other benefits could be added based on your location

Tasks we expect you to fulfill:

• Build a BigQuery data warehouse for a global e-commerce brand unifying Shopify, Amazon, and ad platforms data
• Design an ETL pipeline pulling daily data from GA4, Meta Ads, and HubSpot into Microsoft Fabric for a B2B agency
• Set up automated data quality monitoring for a marketing agency processing 50+ client data feeds
   

What you will do:

• Build and maintain ETL / ELT pipelines from business APIs (Shopify, Amazon, GA4, ads platforms, CRMs, accounting tools)
• Design data models in BigQuery
• Set up scheduled data refreshes, error logging, and pipeline monitoring
• Run data quality checks: duplicates, missing values, broken joins, mismatched totals
• Document tables, fields, formulas, and assumptions clearly
• Collaborate with BI developers to prepare data for Power BI and Looker Studio

Required Skills:

• Strong SQL for data transformation, validation, and reporting logic
• Experience with Google Cloud Platform, especially BigQuery
• Building ETL / ELT pipelines from raw, messy business data
• API integration: Shopify, Amazon, GA4, ads platforms, CRMs, accounting tools
• Data quality checks and pipeline troubleshooting
• Git / version control
• Clear documentation
• English skills (B1-B2), both written & spoken
   

Bonus Skills:

• Microsoft data stack: Azure SQL, Microsoft Fabric, Dataflows, Power BI Service
• Understanding of how data should be prepared for Power BI / Looker Studio
• Python for data processing
   

Important! You must be able to showcase 2-4 past projects - ideally pipelines, data warehouses, or API integrations you've designed end-to-end. Be ready to walk us through the architecture, data quality decisions, and challenges you solved.

Salary:
30-45$ per hour

Junior–Mid Technical Product Manager (Monetization) — Android Apps

Remote | Full-time | Long-term

We are looking for a Junior–Mid Technical Product Manager to work on our Android app portfolio, with a dedicated focus on technical monetization execution.

The role is highly hands-on and technical: you will work closely with the Monetization Lead and R&D to configure, test, and optimize our mobile monetization systems (Ads, Subscriptions, and In-App Purchases). You will bridge the gap between business goals and technical execution—ensuring SDKs, configurations, and user flows are implemented flawlessly.

 Responsibilities:

•⁠  ⁠Define and document product requirements and user flows across our portfolio of Android apps.
•⁠  ⁠Write clear, detailed technical specifications, developer tickets, edge cases, and acceptance criteria.
•⁠  ⁠Work closely with R&D during implementation to ensure technical requirements are met.
•⁠  ⁠Manage, update, and validate complex JSON/remote configurations for ad placements, paywalls, and feature flags.
•⁠  ⁠Monitor app behavior, monetization performance, and system health using Google Play Console, Firebase, and Crashlytics.
•⁠  ⁠Troubleshoot technical monetization issues (e.g., ad loading failures, broken purchase flows) alongside the engineering team.
•⁠  ⁠Validate features and monetization flows before release to ensure a seamless user experience.
•⁠  ⁠Support product improvements, A/B tests, and subscription conversion-related tasks.

Requirements:

•⁠  ⁠Experience as a Product Manager, Technical Product Owner, Product Operations, or a highly technical QA/Data Analyst looking to transition into product management.
•⁠  ⁠Experience working with mobile apps, preferably within the Android ecosystem.
•⁠  ⁠Solid technical literacy: Comfort working with JSON configurations, reviewing API payloads, and communicating effectively with developers on technical architecture.
•⁠  ⁠Familiarity with mobile monetization concepts (how ads are served, how subscription paywalls function, or how IAPs work).
•⁠  ⁠Proven ability to write highly detailed technical specifications, edge cases, and acceptance criteria.
•⁠  ⁠Strong attention to detail and a proactive ownership mindset.
•⁠  ⁠Good spoken and written English for daily communication with international teams.

 Nice to Have:

•⁠  ⁠Hands-on experience with Ad Mediation platforms (e.g., AppLovin MAX, AdMob) or Subscription management SDKs (e.g., RevenueCat).
•⁠  ⁠Experience setting up and analyzing mobile A/B tests and conversion funnels.
•⁠  ⁠Deep understanding of Firebase Remote Config and Google Analytics.
•⁠  ⁠Familiarity with Jira, GitHub Projects, or similar project management tools.
•⁠  ⁠Familiarity with the Android release lifecycle and Google Play policies.

This role is a perfect fit for a structured, analytical, and technical-minded individual who wants to dive deep into the mechanics of app monetization. If you love data, enjoy solving technical puzzles with developers, and want to see your work directly impact business revenue, we want to hear from you.

Hi! We are a small team managing several brands. We specialize in building a creatine brand and developing vitamins and dietary supplements.We are looking for a Creative Strategist who can turn performance data into insights, insights into hypotheses, and hypotheses into scalable creative concepts that reduce CAC and drive revenue growth.

This role owns creative performance at the concept level: what we test, why we test it, and how winning ideas can be scaled across Meta and TikTok.

Our team speaks Russian, so all internal communication is in Russian. The selection process and interviews will also be conducted in Russian.

Reports to: CEO & COO

Key Responsibilities

Creative Strategy & Performance

• Develop creative strategies for Meta and TikTok.
• Own creative concepts, angles, hooks, and messaging.
• Connect creative strategy with business goals, CAC, funnel stage, and growth priorities.
• Track and interpret key metrics: CAC, CTR, Hook Rate, Thumbstop Rate, CPA, fatigue, and scalability.
• Decide which concepts should be scaled, iterated, or killed.

Insights & Testing

• Translate media buying data into clear creative direction.
• Identify why creatives work or fail.
• Build and manage a creative testing roadmap.
• Define hypotheses, expected outcomes, and success criteria for weekly tests.
• Turn weekly learnings into future test ideas.

Concepts & Messaging

• Build scalable concepts, not one-off videos.
• Create angles based on customer pains, objections, motivations, beliefs, and desired outcomes.
• Translate product features and scientific claims into clear direct-response messaging.
• Define hook logic, emotional triggers, proof points, and narrative structure.

Production & Collaboration

• Create production briefs with objectives, hypotheses, hooks, messaging, visual direction, and do’s / don’ts.
• Guide UGC and content production from a strategic perspective.
• Collaborate with media buyers on test design, variable isolation, and scale / iterate / kill rules.
• Share insights with Media Buying, eCom / CRO, Retention, CX, and Product teams.
• Maintain creative documentation: insight logs, hypothesis backlog, concept library, and test archive.

What This Role Is Not

This role does not include:

• Editing videos.
• Launching campaigns.
• Managing media budgets.
• Judging creatives only by aesthetics.
• Chasing trends without a clear hypothesis.

Ideal Candidate

The ideal candidate has experience in performance creative strategy for Meta and TikTok, understands direct-response marketing, can interpret paid social data, and knows how to turn customer insights into scalable concepts, briefs, tests, and iterations.

About Us

We are a growing staffing agency working with global teams and fast-moving companies. We are currently looking for an HR Specialist who can help us manage candidate outreach, sourcing, and recruitment coordination. We’re looking for someone who is proactive, organized, and comfortable communicating with candidates online.

Responsibilities

• Source and connect with candidates through platforms such as Twitter, Discord, LinkedIn, and other communities
• Communicate with candidates and coordinate interview processes
• Screen candidates and manage recruitment pipelines
• Reconnect with previously identified candidates and maintain follow-up communication

• Support ongoing hiring operations and recruiting activities

   

Requirements

• Experience in HR, recruiting, or talent sourcing
• Comfortable using social platforms and online communities for recruiting
• Good communication and organizational skills
• Basic understanding of technical roles is a plus

• Able to work independently in a remote environment

   

Nice to Have

• Experience working with remote teams
• Familiarity with startup or fast-paced environments

• Experience recruiting for technical positions

   

How to Apply

• Please send a short introduction about your recruiting experience and the platforms or communities you have used for sourcing candidates.
• Please share your LinkedIn profile.

Our client is the leader in the Early Childhood Education (ECE) sector, providing the most widely used developmental assessment and curriculum system in the US. They are looking for a talented, innovative and creative Golang Developer to join the platform team. They believe that great technology experts are also software generalists who are unafraid to jump up and down the stack to solve the problems that come their way. If you thrive in fast-paced environments, and like working on software that supports millions of daily users, then this opportunity is exactly what you’ve been looking for!

Their Software Engineering team is responsible for building out SaaS solutions used by educational organizations across the globe. The team works on a wide variety of projects, solving existing problems and enabling new business objectives. Their platform is evolving, so you need to be someone who can build new functionality and learn new technologies quickly as well as be able to maintain and extend existing code to support organizational needs.

As a Senior Golang Engineer, you will:

• Develop new features, components, and modules to support organizational growth;
• Implement a robust set of services and APIs to power high-trafficked SaaS platform;
• Participate in planning, analysis, and design of new software solutions;
• Investigate, troubleshoot, and remedy performance bottlenecks in the application flow;
• Learn new technologies and keep up with both traditional and emerging best practices;
• Works independently and collaborates with other team members to ensure successful project delivery.

Qualifications:

• Senior level knowledge of Golang;
• 8+ years of production experience in software engineering and SaaS product development;
• Strong communication and listening skills; ability to communicate complex technical problems, root cause analysis, and propose solutions;
• Experience using AI developer tools (e.g., Codex), with an AI-forward mindset;
• At least Upper-intermediate level of English (B2 or higher);
• Experience with designing and building scalable solutions;
• Experience with modern design patterns such as SOA and microservice architecture;
• Strong knowledge of relational databases (ex. PostgreSQL) and Databricks (a plus);
• Excellent debugging and testing skills, and an interest to quickly learn new technologies;
• Experience with Agile methodology and software development;
• Commitment to following security, accessibility and performance best practices;
• Self-starter with strong sense of collaboration, teamwork, and accountability;
• Ability to quickly adopt to new environment;

• Working knowledge of AWS and familiarity with its services (Kubernetes, Redis, SQS/SNS, etc.);

   

We offer:

• Competitive market salary;
• Fully remote work;
• Convenient and somewhat flexible work hours (you will have to work until 8 pm Kyiv time GMT+3, or 1 pm EST);
• 28 days of paid time off per year;
• Working on a very socially valuable product, alongside a highly professional, US-based, international team;
• Interesting challenges and the ability to grow and learn.

It’s an amazing time to join Digicode as we continue improving as many innovators as possible to change the world. We deliver outstanding technology consulting, R&D, design, and software development services in the USA, UK, and EU markets. This is where you come in!

We’re looking for an experienced Java Game Developer to help our client build high-quality online casino games enjoyed by players worldwide.

You’ll work closely with game designers and developers to create engaging game mechanics, develop server-side game logic, and bring new game ideas to life.

If you enjoy clean architecture, game mechanics, and solving interesting technical challenges - we’d love to meet you.

Requirements:

• 3+ years of Java development experience;
• Strong understanding of OOP/OOD principles;
• Experience with server-side development;
• Good knowledge of SOLID principles and design patterns;
• Experience with unit testing and code quality practices;
• Familiarity with Jenkins, Maven, and ANT;
• Experience working with Git;

• Good English communication skills.

   

Responsibilities:

• Develop game logic and core game mechanics;
• Build and maintain server-side game components;
• Work closely with game designers to turn ideas into working features;
• Write clean, maintainable, and scalable code;
• Participate in code reviews and technical discussions;
• Write unit tests and improve code quality;
• Collaborate with distributed teams;

• Help improve development processes and engineering standards.

   

⏳Process:

• Intro-call with recruiter

• Tech interview with the Client (in English)

   

What To Expect From Digicode?

🌎 Work from Anywhere: From an office, home, or travel continuously if that’s your thing. Everything we do is online. As long as you have the Internet and your travel nomad lifestyle doesn’t affect the work process (you meet all deadlines and are present at all the meetings), you’re all set.

💼 Professional Development: We offer great career development opportunities in a growing company, international work environment, paid language classes, conference and education budget, & internal 42 Community training.

🧘‍♂️ Work-life Balance: We provide employees with 18+ paid vacation days and paid sick leave, flexible schedule, medical insurance for employees and their children, monthly budget for things like a gym or pool membership.

🙌 Culture of Openness: We’re committed to fostering a community where everyone feels welcome, seen, and heard, with minimal bureaucracy, and a flat organization structure.

And, also, corporate gifts, corporate celebrations, free food & snacks, play & relax rooms for those who visit the office.

Did we catch your attention?

Join us on this exciting journey! We’re eager to grow and evolve together with you!

*By submitting your resume, you automatically agree to the storage and processing of your personal data in accordance with the current legislation of Ukraine. We guarantee confidentiality at all stages of cooperation

About the Role:

We are looking for a Senior Backend Engineer to own a risk intelligence and B2B delivery platform at the core of a next-generation futures trading brokerage. This is a full-ownership role — you will design, build, maintain, and improve two tightly coupled services responsible for per-tenant risk execution and multi-protocol client delivery.

What You Will Work On:

• Per-tenant risk algorithm execution, liquidation workflows, and simulation configuration management;
• REST, gRPC, and WebSocket delivery to B2B clients with per-tenant webhook dispatch and outcome configuration;
• NATS JetStream integration: subscribing to risk alerts and position streams, managing backpressure and audit trail integrity;
• Coordination with upstream Rust services and a Python intelligence layer (classification models, surveillance);
• Evolving a unifying backend layer as the platform scales.

Required Skills:

• 5+ years of backend engineering with production systems at scale;
• Strong proficiency in NestJS / TypeScript and the Node.js ecosystem;
• Solid understanding of event-driven architecture (NATS JetStream, Kafka, or Pulsar);
• Experience designing multi-protocol APIs (REST, gRPC, WebSocket) in a B2B context;
• Familiarity with per-tenant SaaS patterns: isolation, config management, webhook delivery;
• Comfort working adjacent to Rust and Python services;
• PostgreSQL 17 + Timescale, Redis 7, S3 Object Lock, audit-grade data patterns (immutable logs, dual-write);
• Strong async written communication skills for a remote-first team.

Nice to Have:

• Background in fintech, trading infrastructure, or trading firm operations;
• Familiarity with pre-trade risk concepts: margin limits, fat finger controls, liquidation sequencing;
• Prior work with colocation or latency-sensitive distributed systems.

Montepro is expanding its performance marketing team and looking for an experienced Media Buyer Team Lead who knows how to turn traffic, creatives, and budgets into scalable profit.

We work with Nutra offers in Tier 1/Tier 2 GEOs and are focused on building a strong infrastructure, fast testing processes, and high-performing teams.

Responsibilities

— Build, manage, and grow a team of Media Buyers;
— Develop and improve the media buying infrastructure together with Tech, Design, and Farm departments;
— Research, test, and scale profitable ad funnels and creatives;
— Launch, optimize, and scale Facebook Ads campaigns in the Nutra vertical;
— Analyze campaign performance and make data-driven decisions;
— Plan traffic acquisition strategy, testing roadmaps, budgets, and KPIs; — Proven experience managing and scaling advertising budgets of $10K—30K daily in performance marketing campaigns.

Requirements

— 1+ year of experience as a Team Lead or Senior Media Buyer;
— Proven expertise in Nutra or Crypto verticals;
— Strong hands-on experience with Facebook Ads;
— Experience managing teams: hiring, mentoring, and performance evaluation;
— Ability to collaborate cross-functionally and define requirements for Tech / Design / Farm teams;
— Strong analytical mindset and understanding of performance metrics.

Will Be a Plus

— Experience working with Tier 1 GEOs;
— Deep understanding of CPA marketing processes and scaling strategies;
— Experience building internal workflows and infrastructure.

What We Offer

— International team with the main office in Warsaw;
— Competitive salary: fixed rate + KPI-based bonus system;
— Strong infrastructure, technical support, and all required tools;
— Opportunity for professional growth and leadership development;
— Fast-paced environment with ambitious people and real influence on results;
— Open corporate culture and supportive atmosphere.

If you are passionate about performance marketing and scaling profitable campaigns — we’d love to meet you.

Please provide a brief overview of yourself
— Resume;
— Experience with GEO/campaigns;
— Ad spend;
— Case studies and results.

Let’s discuss a partnership!

About Role:

We are looking for a Smart Contract Engineer to join our blockchain engineering team and help build secure, production-grade decentralized applications and protocols.

In this role, you will design, develop, test, and review smart contracts across EVM and other blockchain ecosystems. You will work closely with blockchain engineers, auditors, and product teams to build reliable smart contract systems, identify vulnerabilities, and improve protocol security, architecture, and performance.

This role is ideal for someone with strong hands-on smart contract experience, deep knowledge of DeFi mechanics, and a security-first engineering mindset.

Responsibilities:

• Design, develop, and maintain smart contracts for DeFi and blockchain applications
• Write clean, secure, well-tested Solidity code
  Build automated tests using Foundry, Hardhat, or Anchor
• Review smart contract logic, architecture, and protocol design
  Identify security risks, logic flaws, economic attack vectors, and trust assumptions
• Analyze common DeFi risks such as flash loans, oracle manipulation, MEV, sandwich attacks, and governance risks
• Use tools such as Slither, Mythril, Echidna, Halmos, Manticore, Aderyn, Certora, and Tenderly
• Support audits, remediation, fix verification, and deployment processes
• Document technical decisions, security considerations, and implementation details

Requirements:

• Strong experience with Solidity and EVM smart contract development
• Experience with Foundry and/or Hardhat
• Solid understanding of blockchain architecture, DeFi protocols, token standards, and smart contract security
• Ability to write secure, efficient, maintainable smart contract code
• Experience testing, debugging, and reviewing smart contracts
  Knowledge of common vulnerabilities: reentrancy, access control issues, oracle risks, precision errors, and upgradeability risks
• Familiarity with OpenZeppelin and secure development practices
  Strong analytical thinking and clear communication skills

Nice to Have:

• Experience with Rust, TypeScript, Solana, Anchor, or NEAR
• Experience building or auditing production DeFi protocols
• Knowledge of formal verification, fuzz testing, symbolic execution, or property-based testing
• Experience with Ethereum, Arbitrum, Base, Optimism, Solana, NEAR, MultiversX, or other ecosystems
• Experience with AMMs, lending protocols, bridges, staking systems, or governance mechanisms

What We Offer:

• Healthcare
• Company computer
• Paid holidays
• Flexible hours
• Competitive salary
• Career growth
• Friendly team

We are looking for a Sales Manager focused on tenders to join DeviQA, a software testing and QA company.

This role is fully dedicated to identifying, managing, and winning tender opportunities (RFPs / RFQs), primarily in the QA and software development space.

Key Responsibilities:

• Search for and identify relevant tenders and procurement opportunities;
• Manage the full tender lifecycle: from qualification to submission
• Prepare high-quality RFP / RFQ responses;
• Collaborate with internal teams (delivery, QA, tech) to build competitive proposals;
• Develop strategies to increase win rate in tenders;
• Maintain pipeline and documentation for all tender activities.

Requirements:

• 2–3 years of experience in tender management, sales, or business development;
• Proven experience winning tenders (mandatory);
• Strong hands-on experience with RFP / RFQ processes;
• Understanding of where and how to find tenders;
• Experience in QA / software testing is a strong plus;
• Alternatively, solid experience in IT services / software development sales;
• Strong communication and proposal-writing skills;
• Ability to work independently and own the tender direction.

Nice to Have:

• Experience with international tenders (US / EU markets);
• Familiarity with outsourcing / outstaffing models.