Jobs at Djinni

We are looking for a Network Engineer to join us.

Servers.com is an international hosting provider with data centers in the US, Europe and Asia.

We provide reliable business solutions: dedicated servers, cloud technologies, load balancer, firewall, Kubernetes and monitoring services.

Clients use our services to deploy game servers, payment gateways, streaming services and other high-load systems.

Key tasks:

• providing network equipment administration at multiple data centers;
• performing the routine and emergency maintenance works on network equipment;
• dealing with requests from external and internal clients;

• directly participating in internal projects (developing network, connecting new locations, implementing new equipment, automation).

   

Requirements:

• proficiency in LAN/WAN principles;
• strong understanding of dynamic network protocols (BGP/OSPF);
• understanding L2-networking: VLANs, xSTP family, LACP, Redundancy (LACP/VRRP/etc);
• ability to perform basic network troubleshooting;
• English level sufficient for reading technical documentation and communicating with customers (Intermediate at least);

• ability to learn, communication skills, willingness to take in and analyze large amounts of new information (mostly technical in English).

   

Will be a plus:

• experience with network equipment from Extreme, Juniper or Nokia;
• EVPN and/or MPLS knowledge;
• certifications from network equipment and software vendors;

• experience in telecom and/or datacenter networking.

   

What do we offer:

• work in a team of professionals at international level;
• mentor assistance, learning modern IT technologies;
• opportunity to practice and improve your English;
• сorporate English Program Compensation;
• comfortable working conditions: schedule without night shifts, no overtime, no phone support, smooth integration into the workflow;
• excellent pay and all necessary equipment;
• remote work from Bratislava with the possibility to use our co-working space;
• relocation support to Slovakia;
• support of legalization in Slovakia if needed.

One of the largest companies in the world (in its domain) is open to extending the project team with a Technical Support Analyst. He will provide second-level customer support with queries related to web-based client-facing and internal applications. The position also requires system administration and maintenance for the Data Center.

Required skills:

— 4 years of work experience providing 2nd and 3rd level technical and application support on internet-based enterprise software applications, APIs;
— experience in ticketing software;
— experience with database Management System: Microsoft SQL Server 2008+;
— understanding of XML, JSON, CSV, EDI, XLSX;
— experience with SQL queries, MongoDB, CosmosDB;
— scripting /automation using batch scripts, PowerShell; — experience analyzing application and server logs
— at least upper-intermediate English level.
 

Will be a plus:

— experience in application support, working with application performance monitoring tools (i.e. Dynatrace, New Relic, Datadog);
— Kubernetes’ knowledge;
— experience with using ITSM tools such as JIRA, ServiceNow would be an asset;
— professional Certifications such as ITIL, Microsoft Azure Administration, Microsoft Azure DevOps;
— experience with using ITSM tools such as JIRA, ServiceNow.

Responsibilities:

— resolve incidents and service requests following standard operating procedures. If needed, escalate issues to the appropriate specialists (Third or Expert Levels);
— maintenance could include applying OS patches, database patches, and certificates;
— install and configure new applications and deploy releases and enhancements to production systems and pre-production systems after hours;
— monitor, maintain and troubleshoot production computer systems, internet-based applications, and processes;
— perform root cause analysis and define actions to eliminate incident recurrences;
— develop and maintain Standard Operating Procedures (SOPs) and Knowledge Base, script to automate processes and generate reports;
— technical issues investigation, fix, or escalation;
— coordination between the operation and the engineering teams.

What do we offer:

•  Working schedule from 4 pm to 01.00 am (UTC+3);

• Paid vacations and sick leaves;
• Partial compensation for any sports activity;
• Medical insurance;
• Challenging, and fast-growing product;
• Opportunities to speak with clients and the development team only in English and free English classes;
• As a part of the team, you will be responsible for the production environments of the squad products that are used by thousands of customers worldwide.

Our client is a neocloud building purpose-built GPU infrastructure for AI workloads. They operate large-scale clusters powering training and inference for some of the most demanding AI customers in the market, and they're rapidly expanding. Their infrastructure runs on NVIDIA and AMD accelerators, InfiniBand and high-speed Ethernet fabrics, and a production stack spanning bare-metal provisioning, Kubernetes, and OpenStack.

They're small, senior, and moving fast. The people who do well with our client own problems end-to-end and make decisions with incomplete information.

The role

We are hiring a Senior SRE to own the incident and problem management programs for our client. This is the person who runs the call when a customer cluster goes down, drives the post-mortem afterward, and hardens the runbooks so the same failure does not surface twice.

This is not an ITIL paperwork role. You will be technically credible across Kubernetes, Linux, networking, and GPU infrastructure, enough to lead a live incident with platform engineers, and a customer on the bridge. But your center of gravity is the process: fast, clean incident response, honest communication, and a relentless feedback loop between customers and engineering.

You will set the standard for how our client behaves during their most challenging hours. Done well, this is one of the most visible and highest-leverage roles on the team. You will work closely with cloud operations, network teams, and customer-facing counterparts. Expect to be on-call in a shared rotation.

What you'll own

• Incident command. Run major incidents end-to-end: triage, escalation, comms cadence, timeline, decision log, and drive-to-resolution. You are the conductor, not the fixer.
• Customer communications. Own customer-facing incident messaging, initial acknowledgement, status updates at defined intervals, resolution notice, and written RCA. Clear, honest, no hedging.
• Post-mortem and RCA program. Run blameless post-mortems, write the RCA, track action items to completion, and publish learnings across the org. Own the quality bar for RCA writing for our client.
• Escalation framework. Define and maintain the severity matrix, escalation trees, on-call rotations, and paging policies across platform, network, DC ops, and leadership.
• Runbooks and playbooks. Turn tribal knowledge into durable, testable runbooks. Drive the engineering teams to document before the next 2am page, not after.
• On-call health. Own the on-call experience: page volume, alert quality, rotation fairness, and handoff hygiene. Kill noisy alerts. Fix the ones that matter.
• Reliability metrics. Define and report the metrics that matter: MTTA, MTTR, incident count by class, SLO attainment, repeat-offender systems. Make reliability a number the business trusts.
• Game days and drills. Plan and run incident drills across clusters, regions, and customer scenarios. Surface gaps before customers do.
• Incident tooling. Own the incident tooling stack, paging, status page, incident channel automation, timeline capture, RCA templates. Evaluate and land the right tools.

What we're looking for

Required

• 7+ years in SRE, production engineering, or infrastructure operations, with clear ownership of incident management in at least one prior role.
• Proven ability to run major incidents as the commander, keeping a room calm, driving decisions, managing comms to customers and executives in parallel.
• Strong technical fluency across Linux, Kubernetes, networking ($L2/L3$, BGP basics), and cloud or bare-metal infrastructure.
• Deep enough in the stack to challenge assumptions, debug alongside engineers on a bridge call, and senior enough to turn each incident into durable improvements like runbooks, automation, guardrails, so the next incident does not need you.
• Excellent written communication. You can draft a customer-facing RCA that is accurate, clear, and does not over- or under-promise, and do it within the SLA window.
• Experience owning SLOs, error budgets, or equivalent reliability metrics as a working practice, not a slide.

• Experience designing on-call rotations and alerting practices across multiple teams. Comfortable operating in a fast-moving, still-forming environment. You write the runbook that did not exist yesterday.

   

Strongly preferred

• Experience in GPU infrastructure, HPC, or AI/ML platform operations, NCCL, InfiniBand, DCGM, or similar.
• Direct experience with Kubernetes incident response, control plane, CNI, operator patterns, noisy-neighbor debugging.
• Experience interfacing with neocloud, enterprise or hyperscaler customers during live incidents.
• Familiarity with Prometheus, Checkmk, Grafana, and modern incident tooling (OpsGenie/JIRA).
• Prior experience at a neocloud, CSP, or infrastructure vendor where downtime had direct revenue impact.

How we work

• We're remote-first across US, LATAM, and EU time zones with a strong operational culture.
• We use AI tooling heavily in day-to-day operations and expect everyone on the team to be fluent with it and to help us get more leverage from it.
• We ship, we debug, we iterate. We don't process-engineer our way around problems that need to be solved.
• We value written artifacts, RCAs, runbooks, design docs, over meetings. We value calm over performative urgency.
• We protect focus time and we protect sleep.

AI as a force multiplier

Our client runs the infrastructure that powers the AI economy. We expect our team to use AI aggressively in how we work. For this role specifically, that means using AI to draft RCAs faster, triage logs and metrics during incidents, summarize timelines, generate customer-facing communications from raw incident data, and turn post-mortems into runbook updates automatically. If you have not yet built this into your workflow, you will here.

What success looks like

First 30 days

• Shadowed on-call rotations across the platform, network, and ops teams.
• Read every RCA written and identify the top three recurring failure classes.
• Met with the top three customers and understood their incident expectations and SLA terms.
• Documented the current-state incident response process, gaps and all.

First 90 days

• Published a revised severity matrix, escalation tree, and customer-comms cadence, adopted across teams.
• Run at least two major incidents as commander with clean timelines and customer comms.
• Delivered a new RCA template and coached the team through at least three post-mortems against it.
• Stood up baseline reliability metrics (MTTA, MTTR, incident count by class) with a weekly reporting cadence.
• Killed at least 20% of current alert volume by eliminating low-signal pages.

`First 12 months

• Our client has a mature, documented incident management program that a new customer can diligence with confidence.
• Repeat-offender incident classes are down materially, with clear attribution to runbook, tooling, or engineering changes you drove.
• Customer-facing RCAs are consistently delivered within SLA and are referenced by customers as a differentiator.
• On-call health (page volume, rotation fairness, engineer-reported burden) has measurably improved.
• Game days are a regular cadence and have surfaced and closed real gaps before they became customer incidents.

In the position of Financial Manager of Payment Methods, you will communicate with representatives of providers in English, process large datasets, and participate in process automation.
 

Your tasks:

• Monthly filing of Payment Service Provider (PSP) reporting: Offloading cash flow data, transforming and preparing raw data for analysis.
• Finding and analyzing errors in PSP operation, and proposing solutions.
• Active communication with representatives of payment systems (confident English is required).
• Reconciliation of payment providers’ contractual terms and conditions with actual data.
• Filling and administering the knowledge base on payment providers.
• Participation in the automation of work with data from providers.
   

Our сriteria:

• Strong analytical skills in working with a large amount of data (analyzing cash flows within the framework of PSP, banking, and other financial structures).
• Experience in communicating with representatives of foreign companies in English.
• Advanced Excel user (Power Query, complex formulas, tables at the level of data filling automation). Creation of ready-made templates for adapting source data.
• High level of responsibility and self-organization.
• Knowledge and practice of English, at least at the intermediate level.
• Experience with PSPs (Payment Service Providers), and understanding their working principles for at least 1 year, will be an advantage.
   

Your Strengths:

• Demonstrates a commitment to continuous learning and professional growth.
• Possesses the ability to analyze data, work easily with figures, and find solutions in controversial situations.
• Exhibits responsibility and has no problems with self-organization.
• Is communicative.
   

Our offer:

• Flexible work setup - work remotely or from the office, we focus on results, not location;
• Support for a comfortable work environment - we compensate coworking expenses and EcoFlow power stationsto help our team stay productive during power outages in Ukraine;
• Unlimited vacation and sick leave, because we trust our people to manage their time responsibly;
• Relocation support for team members who want to move;
• Regular performance-based bonuses that reward individual and team impact;
• Learning support - we cover 50% of professional courses and development programs;
• Language & wellbeing support - we cover 50% of English classes and psychological consultations;
• Career growth opportunities - we prioritize internal promotions and development;
• Team culture that actually feels like one - regular gifts, company merch, and team events throughout the year;
• Real impact - we are small enough for every voice to be heard and big enough to turn great ideas into action quickly.

We are looking for a highly technical Senior QA Engineer to join a fast-paced product team building specialized workforce management software for large-scale industrial operations.

The system is a hardware-integrated SaaS platform that processes real-time field data and delivers actionable insights through dynamic dashboards and mobile interfaces.

The platform’s core includes IoT data ingestion, workforce tracking, and advanced scheduling logic, with a strong focus on real-time analytics.

This role focuses on automating complex user interfaces involving high-frequency data updates and large datasets.

This is an Individual Contributor role with high ownership over the testing strategy and automation framework.

This is not a manual QA-only role. The position requires deep expertise in Playwright, strong programming skills, and the ability to work with complex, dynamic UI systems.
 

Strong Playwright expertise is the primary screening signal and will be validated during the technical interview.
 

About the Client:

A US-based product company in the Construction Technology domain.

The platform replaces manual time tracking with AI-powered biometric verification. It helps contractors capture accurate work hours, reduce payroll errors, track crews and cost codes in real time, and sync labor data into systems such as Procore, CMiC, Vista, and Power BI.
 

Responsibilities:

• Develop and maintain a robust automation framework from scratch
• Automate complex UI with dynamic content and frequent updates
• Identify and document edge-case scenarios in highly dynamic UI components
• Collaborate with frontend developers to ensure the testability of new features
• Perform root-cause analysis of flaky tests
• Monitor and improve test execution time within CI/CD pipelines
• Conduct manual testing where automation is not yet feasible
   

Requirements:

• 5+ years of experience in Software Quality Assurance
• Expert-level proficiency with Playwright (JS/TS) (core requirement)
• Strong programming skills in JavaScript and TypeScript
• Proven experience testing dynamic content and complex/virtualized lists
• Deep understanding of DOM manipulation and asynchronous event handling
• Experience with CI/CD integration for automated test suites
• Proficiency in Chrome DevTools for debugging and performance profiling
• Proactive attitude toward identifying architectural bottlenecks
• Ability to work independently in a remote environment
• Strong documentation skills for bug reporting and test planning
   

We offer:

• Remote-first flexibility
• Exposure to modern automation frameworks
• High ownership over testing strategy and quality processes
• Collaboration with a high-performing international engineering team
• Reservation option for candidates based in Ukraine
   

We will be happy to get in touch and share more details about the role 🙂

Our client is a fast-growing digital platform that transforms how organizations manage complex financial workflows and user roles across multiple tiers. We’re looking for a skilled and proactive Junior Java developer to join a lean and agile engineering team working on a modern, modular, performance-optimized web application. The ideal candidate will be able to contribute to feature development, work proactively, and maintain a steady development pace.
 

You will be joining a project that combines user-centric dashboards, secure document flows, automated validation systems, visual analytics, and flexible admin tools — all designed to simplify interaction between companies, consultants, and regulatory bodies.

Responsibilities

• Develop and maintain Java backend services and APIs, ensuring smooth integration with the frontend of a complex web platform.
• Provide accurate project estimations and adhere to them
• Maintain high code quality through testing, peer reviews, and documentation
• Communicate clearly and effectively with team members.

Requirements

• 0.5+ years of proven relevant experience in building complex enterprise applications and/or microservices platforms using modern AI tools
• Good knowledge of de-facto standard Java stack technologies, frameworks, their drawbacks, workarounds, and best practices
• Confident knowledge of Core Java, Spring Framework, Spring Boot, Spring Security, Spring Data, JPA/Hibernate, OOP, and basic design principles.
• Solid understanding of Computer Science fundamentals (Data Structures, Algorithms, DB normalization, Concurrency, etc.)
• Strong analytical and problem-solving skills, with the ability to tackle typical development challenges while maintaining attention to detail
• Confident written communication skills in English, with the ability to explain complex technical concepts in simple words to non-technical stakeholders
• Demonstrated ability to thrive in competitive environments, consistently seeking professional growth and ready to tackle challenging tasks with confidence and enthusiasm
• Ability to work independently and maintain a good vibe in a team
• Ability to debug, refactor, and test your code

Nice to Have

• Knowledge of message brokers (Kafka, RabbitMQ, NATS) and asynchronous processing.
• Experience with Kubernetes, Linux administration, AWS.

We look forward to your application!

About the Project

We are building and scaling several internal products, including a proprietary CMS and a custom CI/CD platform. Instead of relying on typical off-the-shelf solutions, our systems are designed with a heavily tailored architecture focused on performance and flexibility.

Key Responsibilities

• Technical Leadership: Lead the technical direction of the product, drive architectural decisions, mentor team members, and ensure engineering best practices across the platform.
• End-to-end feature development: Architect, implement, and support new functionality across the stack using TypeScript, React, and Node.js (Express).
• Editor & visual builder improvements: Enhance our in-house React-based builder and rich-text editor by adding new components, shortcodes, and draft/publish flows.
• Publishing engine: Support and improve our custom site generation and live preview system, including work with Server-Sent Events (SSE), HTML parsing/sanitization (htmlparser2), and Redis caching.
• State handling: Work with complex, high-frequency frontend state using Redux Toolkit, RTK Query, and Shared Web Workers for cross-tab synchronization.

Tech Stack

Languages: TypeScript, Node.js (v22+)

Frontend: React (v18), Redux Toolkit & RTK Query, Ant Design (v5), Emotion (CSS-in-JS)

Backend: Express.js, JWT-based authentication

Data & caching: PostgreSQL (pg-native), Redis (ioredis), internally developed ORM/cache layer with code generation

Tooling: Parcel, Playwright, ESLint, Prettier

What We’re Looking For

• Strong TypeScript & Node.js expertise: Deep understanding of modern TypeScript and Node.js internals, including async patterns, event loop, memory handling, and garbage collection.
• Advanced React skills: Solid experience with hooks, performance tuning, and complex state management using Redux Toolkit.
• Engineering mindset: Comfortable working beyond standard frameworks (e.g., avoiding typical solutions like Next.js/Prisma) and contributing to custom architectures, code generators, and IPC-based services.
• Tech Leadership: Experience leading engineering teams or acting as a technical lead. Ability to drive technical decisions, mentor developers, coordinate implementation efforts, and take ownership of the overall technical quality and architecture of the product.
• Ownership mentality: Proactively identify bottlenecks, suggest improvements, and take responsibility for delivering features from idea to production and monitoring.
• High autonomy: Ability to operate independently, handle unclear requirements, and navigate complex or undocumented codebases.

Build and optimize lead generation funnels across platforms such as ClickFunnels, GoHighLevel, and similar tools. Responsible for front-end funnel development, Meta Pixel and Conversion API implementations, tracking setup, landing page optimization, A/B testing, and marketing automation integrations to improve lead volume and conversion rates.

Requirements:

• Experience with ClickFunnels, GoHighLevel, or similar funnel builders
• Strong understanding of Meta Pixel, Conversion API, and conversion tracking
• Front-end development skills (HTML/CSS/JavaScript preferred)
• Experience with Zapier, Make, webhooks, and CRM integrations
• Understanding of CRO and lead generation best practices

We are looking for an experienced Technical Lead Full Stack Engineer (Java+React) to join and guide the development team.

Our customer – integrated Shipping Services has set itself apart as an independent carrier with a fresh, unique approach. His strategy as a global niche carrier offers distinctive advantages to customers worldwide. We have created a smart, efficient network that ensures stable, reliable services; and we have made it our mission to focus on the needs of our customers, which stand at the heart of all our decisions. The main idea of our product operates in select trades, where it has a competitive advantage and where it can provide superior service. We maintain a flexible partnership approach with other major carriers, and our new line structure is a much-needed alternative to customers concerned about the current alliance-dominated market.

Responsibilities:

• Guide, mentor, and foster the growth of full-stack engineers within the team, championing engineering excellence and XP practices.
• Lead the architectural design and technical direction of innovative full-stack applications, ensuring scalability, security, and alignment with business goals.
• Establish and champion high standards of code quality, testing (TDD/BDD), CI/CD pipelines, and robust DevOps practices.
• Act as a key technical point of contact, collaborating closely with product owners and stakeholders to translate complex requirements into actionable technical strategies.
• Direct full-stack development of innovative applications, remaining actively involved in writing code and remote pairing.
• Own the entire development cycle, including design, architecture, development, testing, and DevOps deployment.

• Foster a highly collaborative Extreme Programming (XP) environment featuring remote pairing and rapid feedback loops.

   

Requirements:

• BS degree in Computer Science or an equivalent combination of education and experience.
• Experience in technical leadership is a must.
• 5-6+ years of full-stack development experience.
• 5-6+ years of experience in the following technologies: Java, Spring.
• Proven experience with Functional Programming and Java Streams.
• 2+ years of experience in front-end development with React.
• Experience with developing a reactive UI (Reactive JS).
• 2+ years of experience in TDD/BDD development in the following frameworks: JUnit, Jasmine, Mockito, Protractor/Selenium.
• 2+ years of experience in microservices-based architecture and tools (Spring Boot/Cloud).
• AI experience 
• Experience in DevOps development and Jenkins (must).
• Experience in development in Kotlin – an advantage.
• Experience in designing, developing, and deploying cloud/hybrid-based solutions.
• Experience in developing and deploying in Container-based environments (Kubernetes, Cloud Foundry).
• Deep familiarity with the following design concepts: microservices, service discovery, circuit breakers.
• Strong leadership abilities with the capacity to appropriately prioritize, plan, and delegate complex work in a rapidly changing environment.
• Versatility and capability to switch easily between different tasks and technologies.
• Experience in assessing a broad range of information solutions and products.
• Strong critical thinker with an exceptional problem-solving aptitude.

• Excellent English skills - both verbal and written.

   

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

We are looking for an experienced Technical Lead Full Stack Engineer (Java+React) to join and guide the development team.

Our customer – integrated Shipping Services has set itself apart as an independent carrier with a fresh, unique approach. His strategy as a global niche carrier offers distinctive advantages to customers worldwide. We have created a smart, efficient network that ensures stable, reliable services; and we have made it our mission to focus on the needs of our customers, which stand at the heart of all our decisions. The main idea of our product operates in select trades, where it has a competitive advantage and where it can provide superior service. We maintain a flexible partnership approach with other major carriers, and our new line structure is a much-needed alternative to customers concerned about the current alliance-dominated market.

Responsibilities:

• Guide, mentor, and foster the growth of full-stack engineers within the team, championing engineering excellence and XP practices.
• Lead the architectural design and technical direction of innovative full-stack applications, ensuring scalability, security, and alignment with business goals.
• Establish and champion high standards of code quality, testing (TDD/BDD), CI/CD pipelines, and robust DevOps practices.
• Act as a key technical point of contact, collaborating closely with product owners and stakeholders to translate complex requirements into actionable technical strategies.
• Direct full-stack development of innovative applications, remaining actively involved in writing code and remote pairing.
• Own the entire development cycle, including design, architecture, development, testing, and DevOps deployment.

• Foster a highly collaborative Extreme Programming (XP) environment featuring remote pairing and rapid feedback loops.

   

Requirements:

• BS degree in Computer Science or an equivalent combination of education and experience.
• Experience in technical leadership is a must.
• 5-6+ years of full-stack development experience.
• 5-6+ years of experience in the following technologies: Java, Spring.
• Proven experience with Functional Programming and Java Streams.
• 2+ years of experience in front-end development with React.
• Experience with developing a reactive UI (Reactive JS).
• 2+ years of experience in TDD/BDD development in the following frameworks: JUnit, Jasmine, Mockito, Protractor/Selenium.
• 2+ years of experience in microservices-based architecture and tools (Spring Boot/Cloud).
• AI experience 
• Experience in DevOps development and Jenkins (must).
• Experience in development in Kotlin – an advantage.
• Experience in designing, developing, and deploying cloud/hybrid-based solutions.
• Experience in developing and deploying in Container-based environments (Kubernetes, Cloud Foundry).
• Deep familiarity with the following design concepts: microservices, service discovery, circuit breakers.
• Strong leadership abilities with the capacity to appropriately prioritize, plan, and delegate complex work in a rapidly changing environment.
• Versatility and capability to switch easily between different tasks and technologies.
• Experience in assessing a broad range of information solutions and products.
• Strong critical thinker with an exceptional problem-solving aptitude.

• Excellent English skills - both verbal and written.

   

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

UITOP, a design & development team. We help B2B SaaS products feel simple, modern, and easy to use.
 

We are looking for Full Stack Developers. You will work on SaaS and data-heavy systems, diving deep into business logic with a real influence on technical and product decisions.

Requirements

• 2-4 years of experience as a Full Stack Developer, specifically with React.js and Node.js
• Strong expertise in TypeORM, Webpack, PostgreSQL, and Redis
• Proficiency with Express.js or NestJS for building scalable systems that can handle complex ERP business logic.
• Use AI tools (AI agents, Claude Code, Cursor, Codex or similar) in daily workflow. 
• Apply your experience in building SaaS or data-heavy applications, including CRM/ERP.
• Deep knowledge of Material-UI (MUI) and RESTful API design. 
• Upper-Intermediate English (B2) for effective communication and technical discussions. 

Benefits

• Regular performance and salary reviews. 
• Working with complex large-scale SaaS projects, from 6 months.
• 18 working days of vacation and 10 sick days.
• Compensation 50% for professional development cources. 
• Free Internal English classes.
• Company equipment. We’ll provide a laptop after 6 months of work. 
• Financial compensation of coworking 100% (during blackouts).
• Flexible work schedule, remote.
  
  We are looking for a highly motivated and talented individual to join our team. If this sounds like your next big challenge, let’s chat! 

About Us

At Uitop, we design intuitive, scalable UI/UX for fast-growing B2B SaaS platforms across industries like logistics, finance, construction, and so on.

Job Summary
We are looking for a Ruby on Rails Developer to join our team. The role focuses on backend development, building and optimizing systems. The position also involves integrating AI features to enhance the platform.

What do you have

• At least 4 years of experience with Rails. 
• Proficient in Backend: you have at least three years of experience with Ruby and Ruby on Rails (most important), ideally 3-4 years.
• Frontend: Vanilla JavaScript, Hotwire with StimulusJS & Turbo a bit.
• Knowledge of Data Stores: Postgres and Redis; Sidekiq; S3. 
• Experience with Stimulus, TailwindCSS. 
• Experience with cloud environments, Terraform, networking and security concepts is a big plus. 
• Good English communication skills (B2 level), be ready to communicate effectively in English.

About project
The platform helps cities, developers, and urban planners automate and simplify the permit approval process, reducing errors and speeding up approvals with AI.

What we have

• Vacation - 18 working days per year, 10 Sick Days;
• 50% coverage of English language courses/any kind of courses;
• Working with complex SaaS systems for a long time;
• Performance & salary review constantly.
• Professional development support (books, online courses, conferences, certifications, Internal English classes);
• The opportunity to influence the project with your decisions;
• Financial compensation of coworking 100% (during blackouts);
• Flexible work schedule, remote.

Our focus is on a result-oriented person, ready to learn and implement new technologies. Maybe you are our match, let's talk!

We’re seeking a skilled Senior Golang Developer to join the Recorded Future Payment Fraud Intelligence team. In this role, you’ll contribute to an actively developing product, building new features and integrating with a variety of external services.

Responsibilities and Duties:

• Design and build scalable, highly available, and resilient systems with a focus on continuous delivery
• Collaborate within a cluster-based, cross-functional team environment
• Participate in the full lifecycle of feature development - from ideation through deployment and long-term maintenance
• We encourage candidates to submit a portfolio or code sample that demonstrates their engineering capabilities
• Accurately log time against project tickets to support team efficiency and transparency

• Take ownership: define a development plan, advocate for it, build it, ship it - and stand behind your work

   

Qualifications:

• apache/kafka
• git
• At least 6 years of experience with golang/go: 
  • gocolly/colly: Elegant Scraper and Crawler Framework for Golang
  • gofiber/fiber: Express inspired web framework written in Go
  • labstack/echo: High performance, minimalist Go web framework
• Experience with gRPC: C++ based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
• Working experience with NoSQL:
  • mongodb: The MongoDB Database
  • elastic’elasticsearch: Free and Open Source, Distributed, RESTful Search Engine 
  • redis: An in-memory key-value data structure store.
• Working experience with SQL:
  • mysql-server: MySQL Server, the world's most popular open source database, and MySQL Cluster, a real-time, open source transactional database.
  • postgres

Nice to have:

• OCR tools
• Ansible
• Kubernetes

• Prometheus

   

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

Join Whitechain — Build the Future of Web3!

At Whitechain, we’re on a mission to revolutionize blockchain, smart contracts, and cryptography. As part of the WhiteBIT ecosystem, we’re building cutting-edge Web3 solutions, from our own EVM blockchain to non-custodial wallets, DeFi platforms, and GameFi experiences.We’re looking for ambitious innovators to help us bridge the gap between retail and corporate blockchain adoption. If you’re passionate about decentralization, Web3, and shaping the future of digital economies, this is your chance to make an impact!

The future of Web3 starts with you — join us as a Senior General QA Engineer!

What we look for (Requirements):

— 5+ years of experience in Quality Assurance;
— At least 2 year of experience testing Web3 products or chains (L1/L2 blockchain, protocols, smart contracts);
— Experience with test automation (framework setup and maintenance);
— Experience working with analytics and monitoring/observability tools;
— Strong understanding of SDLC, STLC, and release management processes;
— Solid knowledge of API testing tools and practices;
— Proficiency in SQL for data validation and analysis;
— Experience in setting up and implementing QA processes from scratch or significantly improving existing ones;
— Experience working with CI/CD pipelines (test integration, pipeline configuration);
— AI Agentic experience (Claude Code / Codex / other agentic tooling);
— Practical experience creating and maintaining test cases, checklists, and bug reports in Jira and/or Qase;
— Demonstrated ability to mentor and support QA colleagues;
— Strong analytical, communication, and leadership skills;

Will be a plus:

— Experience with performance and load testing;
— Experience in security testing;
— Python experience;

What you will do:

— Own QA processes across all Whitechain products: define, implement, and continuously improve standards and best practices;
— Test Web3 products: blockchain functionality, wallet integrations, bridge, RPC, and smart contracts;
— Perform functional, regression, smoke, UAT, and exploratory/ad-hoc testing;
— Analyze logs, network requests, and blockchain explorer data to investigate defects;
— Create, maintain, and update test cases, checklists, and QA documentation;
— Document and track defects in bug tracking systems; manage full bug lifecycle;
— Participate in refinements, planning sessions, requirement analysis, and release activities;
— Lead root cause analysis of production incidents;
— Collaborate closely with Product, Development, and DevOps teams;
— Analyze test results, track quality metrics, and report QA status to stakeholders;
— Define and drive automation strategy; promote integration of automated tests into CI/CD;
— Mentor and provide guidance to the QA Engineers; support knowledge sharing within the team;

What we offer:

Immerse yourself in Crypto & Web3:

— Shape the Future 

— Work on high-impact blockchain products at the forefront of Web3.
— Innovate & Create 

— Your ideas drive real-world solutions and technological breakthroughs.
— Global Reach 

— Build scalable solutions for businesses and users worldwide.
— Web3-Powered Culture 

— A team of visionaries who believe in decentralization and innovation.
Work-Life Balance & Well-being:
— Modern equipment.
— Comfortable working conditions, and an inspiring environment to help you thrive.
— 24 calendar days of paid leave.
— Additional days off for national holidays.

👉 Ready to disrupt the industry with us? Apply now and let’s build the decentralized future together!