Jobs

LangGraph · Distributed Systems · Financial Transaction Platform
Full-time · Senior level

About the Role
We’re looking for a senior Python engineer to help evolve and scale a critical transaction
processing platform that handles millions of financial transactions every month. This is not a
CRUD application, a chatbot project, or an AI prototype.

You’ll be working on a distributed, event-driven system responsible for ingesting, processing,
classifying, enriching and synchronising financial transaction data across multiple services and
products. The platform sits at the centre of our ecosystem and communicates with systems
written in Python, PHP and TypeScript.

The role requires someone who is equally comfortable designing distributed systems, building
production-grade APIs, optimising LLM-powered workflows, and understanding the
consequences of architectural decisions across multiple interconnected services. Experience
with LangGraph, AWS SQS, SQL and LLM optimisation is mandatory.

A significant portion of the platform relies on graph-based workflows for transaction
classification, orchestration, enrichment and decision-making. We are looking for engineers who
have built and operated LangGraph systems in production, understand event-driven
architectures at scale, and know how to optimise LLM usage through intelligent caching,
batching, routing and cost controls. Every change has a ripple effect across queues, APIs,
databases, classification pipelines, tax calculations and customer-facing products. Success in
this role requires strong systems thinking, attention to detail, and the ability to anticipate
downstream impacts before they become production incidents.

The Platform
Our transaction processing platform is responsible for:

• Processing millions of financial transactions
• Parsing structured and unstructured financial data
• Classifying transactions using LLM-powered workflows
• Extracting and enriching financial information
• Synchronising data across multiple internal services
• Feeding downstream bookkeeping, tax and reporting systems

Operating asynchronously through distributed worker architectures
The platform combines traditional backend engineering, distributed systems design and modern
AI orchestration techniques.

Technology Stack

• Python 3.13 FastAPI SQLAlchemy
• MySQL LangGraph AWS SQS
• Event-driven workers
• Asynchronous processing
• pipelines
• Pandas
• PDF processing
• LangFuse
• Pytest

What You’ll Be Doing

• Designing and implementing new transaction processing features
• Building and maintaining LangGraph workflows
• Improving transaction classification accuracy and reliability
• Designing robust event-driven processing pipelines
• Optimising LLM utilisation, latency and cost
• Implementing intelligent caching and routing strategies
• Building APIs consumed by PHP and TypeScript applications
• Designing integrations between multiple internal services
• Contributing to architectural decisions across the platform
• Improving throughput, reliability and operational efficiency

This role involves significant ownership and influence over technical direction.
Example Problems You Might Solve
1. Designing a classification workflow capable of processing hundreds of thousands of
transactions daily without creating bottlenecks.
2. Building cache strategies that reduce LLM costs by 70% while maintaining classification
accuracy.
3. Designing idempotent processing pipelines that safely recover from worker failures and
duplicate events.
4. Tracing inconsistencies across Python, PHP and TypeScript systems to identify the root
cause of financial data discrepancies.
5. Designing queue architectures that remain performant as transaction volumes increase
significantly.
6. Identifying and mitigating subtle downstream impacts of schema, workflow or classification
changes before deployment.

Mandatory Experience !!!
Please do not apply unless you have experience with all of the following !!!:
 

• Strong Python backend engineering experience
• Production experience with LangGraph
• AWS SQS and event-driven architectures
• SQL database design and optimisation
• FastAPI or equivalent API frameworks
• Designing and operating distributed systems
• LLM optimisation techniques
• Production debugging and observability
• Automated testing using Pytest or equivalent

Who This Role Suits
This role is best suited to engineers who enjoy complexity, care deeply about system design,
and want to build highly reliable backend platforms operating at significant scale.

NuxGame is a dynamic IT company delivering top-tier software solutions for the iGaming industry. We empower operators of all sizes to expand into new markets, strengthen their existing brands, and achieve ambitious business goals.
We are looking for a Devops Team Lead to join our team. If you are passionate about high-load systems, solving complex engineering challenges, and working with modern tech stacks, this is the place for you.

Required skills:

• 3+ years in a DevOps leadership role (team management, hiring/firing, mentoring, reporting, workflow optimization).
• Strong expertise in AWS (multi-account organizations, networking, security, cost optimization).
• Advanced Kubernetes experience (EKS preferred): HA networking, autoscaling, PodDisruptionBudgets, NodeGroups, service mesh & CNI (e.g., AWS VPC-CNI, Cilium/eBPF).
• Infrastructure as Code: Terraform (multi-environment modules, GitOps automation), Helm; understanding of CloudFormation as a plus.
• Cloud-native CI/CD: GitHub Actions, Jenkins, FluxCD or ArgoCD (GitOps), can design secure deployment pipelines for PHP, Go.
• Observability & Monitoring: Prometheus, Grafana, Alertmanager, New Relic, Sentry; experience writing custom metrics/alerts.
• RDBMS expertise: Practical experience with MySQL/Aurora performance, backup/restore automation, failover.
• Security: Strong understanding of Zero-Trust, IAM, network segmentation, SSL/TLS, WAF, DDoS protection, secrets management (AWS Secrets Manager/External Secrets Operator).
• Networking fundamentals: VPC design, Ingress/Load Balancers, troubleshooting.
• Automation & Scripting: Python/Bash for operational automation, integrations, and tooling.
• High-load experience: Scaling distributed systems used globally (latency optimization for multi-region deployments).
  
   

Would be a plus:

• Experience with Multi-Region and Multi-Cloud architectures, cross-cluster networking, failover strategies.
• Experience with PCI DSS, or equivalent compliance frameworks.
• Caching/CDN and storage optimization: Redis, Cloudflare, S3 tiering.
• Linux systems internals, performance tuning.
• Experience with Kafka/MSK or other streaming systems.
• Strong background in cost optimization techniques across AWS/GCP/Azure.

Responsibilities 

• Lead and grow the DevOps team, set priorities, improve delivery workflows, and ensure high service availability.
• Lead the development and support of Kubernetes-based infrastructure across multiple AWS accounts.
• Maintain Infrastructure as Code (Terraform) and GitOps deployment practices.
• Support continuous delivery and operational excellence through optimized CI/CD pipelines and automation.
• Ensure strong monitoring, incident response, and system performance across all environments.
• Collaborate with engineering and product teams to drive infrastructure improvements aligned with business needs.
• Strengthen security controls, access management, and compliance across the platform.
• Manage Cloudflare security and performance services.

What we offer:

We believe that a happy team builds the best products. Here is how we support you:
 

• Remote & Flexible: Work from anywhere. Our core hours are 09:00/10:00 to 17:00/18:00 (Kyiv time), Mon-Fri.
• Financial Stability: Timely payment for compensation for services
• Personal Equipment Policy: No tech troubles — a MacBook and all necessary equipment are provided for use to ensure comfortable and efficient work.
• Learning & Development: It is a pleasure for us to watch you grow. We cover your learning costs (courses, conferences).
• Knowledge Sharing: We regularly gather to discuss new trends, share insights, and elevate one another.
• Community: At NuxGame, you will work in a team of like-minded people who are ready to support, inspire, and tackle complex challenges together.
• Creative Freedom: We encourage initiative. With us, you have the freedom of professional expression and the space to implement your ideas.
• Time-off Policy: 24 vacation days per year + 5 sick days (without medical confirmation).
• Atmosphere: A friendly environment focused on results and mutual respect, free from unnecessary bureaucracy and pressure. 

About the role

We are looking for a Senior Backend Engineer o join the AgInsights Platform team.

The platform enables data-driven decision-making in agriculture by integrating agronomic and machine learning models into scalable cloud-native services.

You will play a key role in building and scaling the AgInsights Platform, developing backend services, integrating agronomic models, and improving the tooling and infrastructure that enable data-driven decision-making in agriculture. This is a hands-on engineering role with real ownership, where you will work across platform and model boundaries to deliver reliable, production-ready systems in a largely greenfield environment.

Responsibilities

• Build and maintain backend services and APIs (e.g., using FastAPI)
• Integrate and operationalise agronomic and data-driven models
• Design and implement data workflows (e.g., with Apache Airflow)
• Develop and improve internal tooling, SDKs, and developer experience
• Deploy and operate services in cloud-native environments (Kubernetes on Amazon Web Services)
• Contribute to CI/CD and GitOps practices (e.g., CircleCI, Argo CD)
• Improve observability, monitoring, and system reliability

• Collaborate closely with data scientists, model developers, and platform engineers

   

Requirements

• 4+ years of commercial experience with Python
• 3+ years of experience with FastAPI
• Experience with Redis and Celery
• 3+ years of experience with Pandas
• Experience with Apache Airflow and data orchestration
• Solid experience with AWS cloud services

• Upper-Intermediate English or higher

   

Nice to Have

• Experience with machine learning platforms or MLOps practices
• Experience with data engineering and large-scale data processing
• Experience with GitOps tools such as Argo CD
• Experience in AgTech, agriculture, geospatial, or environmental data domains

SDR (Sales Development Representative)

Summary

We are looking for a proactive and results-driven SDR to join Red Rocket Software and help grow our outbound sales pipeline across European markets. In this role, you will be responsible for identifying potential clients, building targeted outreach campaigns, qualifying leads, and booking intro calls for the sales team.

You will work closely with Business Development and Marketing teams to generate new business opportunities for design & development services through LinkedIn outbound, personalized messaging, and strategic prospect research.

Responsibilities

• Build and execute outbound outreach campaigns via LinkedIn and other channels
• Research and identify ICP-fit companies and decision-makers
• Create personalized multi-touch outreach sequences
• Generate and qualify sales opportunities for the sales team
• Book and confirm intro calls with potential clients
• Maintain accurate CRM records and update lead statuses
• Track outreach performance and optimize messaging based on results
• Conduct account research using LinkedIn, company websites, Clutch, and other tools
• Collaborate with Business Development and Marketing teams to improve targeting and messaging
• Run A/B tests for outreach messages and analyze reply rates
• Maintain consistent outreach activity and follow-up discipline

Requirements

Must Have

• 1+ year of experience in SDR / Lead Generation / B2B Outreach roles
• Strong written English (B2+ minimum)
• Experience with LinkedIn Sales Navigator or similar prospecting tools
• Understanding of outbound sales processes and lead qualification
• Experience working with CRM systems (Pipedrive or similar)
• Ability to personalize outreach at scale
• Strong communication and organizational skills
• High level of ownership and self-management

• Ability to handle rejection and stay motivated in outbound environments

   

Nice to Have

• Experience in IT outsourcing, software agencies, or SaaS
• Experience working with European markets (DACH, Poland, Switzerland)
• Familiarity with Apollo, Instantly, Clay, or automation tools
• Understanding of tech buyer personas (CTO, Founder, Head of Product)
• Polish or German language skills

• Startup or agency background

   

What We Expect From You

• Ownership mindset and ability to work independently
• Strong attention to detail
• Consistency in outreach and follow-ups
• Analytical thinking and willingness to improve messaging through data
• Ability to balance outreach volume with personalization quality
• Proactive communication and collaboration with the team

Red Rocket Software is looking for a detail-oriented and analytical Data Researcher to support our outbound sales and lead generation processes. In this role, you will be responsible for identifying potential clients, researching target companies and decision-makers, enriching prospect data, and building high-quality lead databases for Sales and Marketing teams.

We are looking for someone who is highly organized, proactive, and comfortable working with large volumes of information and modern prospecting tools. The ideal candidate understands how to turn raw market data into structured, accurate, and actionable insights that directly support business growth.

Key Responsibilities

• Conduct B2B market and prospect research to identify target accounts and relevant decision-makers
• Build, maintain, and continuously improve high-quality lead databases for outbound campaigns
• Research prospects through LinkedIn, company websites, Apollo, Crunchbase, Clutch, directories, and other platforms
• Segment and categorize leads by industry, company size, geography, technology stack, service focus, job title, funding stage, and other ICP criteria
• Verify, clean, and enrich company and contact data to ensure high accuracy and relevance
• Support SDR and Business Development teams with well-structured and targeted lead lists
• Maintain CRM hygiene and ensure data consistency across internal systems
• Analyze lead quality and optimize research methodologies based on campaign performance
• Identify new buyer intent signals, market opportunities, and prospecting approaches
• Monitor competitors, industry trends, and emerging lead generation tools

• Collaborate closely with SDRs, Marketing, and Sales teams to improve outbound efficiency and targeting

   

Requirements

Must Have

• 0.5+ year of experience in data research, lead generation, prospecting, or similar roles
• Experience working with B2B lead databases and outbound research tools
• Strong proficiency with LinkedIn Sales Navigator, Apollo, Crunchbase, Clutch, and similar platforms
• Understanding of the IT outsourcing / outstaffing / software services market
• Experience working with CRM systems such as HubSpot, Pipedrive, Salesforce, or similar
• Strong attention to detail and ability to work with large volumes of data
• Analytical mindset and ability to assess lead quality and relevance
• Good organizational and time-management skills
• English level B1+ or higher

• Ability to work independently and deliver structured, high-quality results

   

Nice-to-Have

• Experience with SaaS lead database building and enrichment
• Experience with Clay, Instantly, Phantombuster, or other automation tools
• Understanding of ICP development and outbound sales processes
• Ability to improve research workflows, tooling, and data collection logic
• Experience working with European or US B2B markets

• Basic understanding of AI tools for research automation and data enrichment

   

What We Expect From You

• High level of ownership and responsibility
• Strong research and analytical thinking
• Consistency and attention to accuracy
• Ability to quickly learn new tools and workflows
• Proactive approach to finding new prospecting opportunities
• Structured communication and collaboration with the team

Softsich is a young and ambitious international product tech company developing scalable B2B digital platforms for global partners.

We are expanding our Retention team and are looking for a proactive German-speaking Account Manager who enjoys client communication, knows how to build long-term relationships, and is ready to drive users toward VIP status.

In this role, you’ll work with an active and loyal player base, focus on outbound communication, increase engagement, and directly impact retention and revenue.

Your key responsibilities will include:

– Making outbound calls to active and loyal users to maintain engagement and strengthen relationships.
– Presenting promotions, bonuses, and special offers tailored to client needs.
– Collecting and analyzing client feedback regarding product and service quality.
– Handling incoming requests via email and other communication channels.
– Providing consultations and support to clients, resolving issues and answering questions.
– Ensuring sufficient coverage of the active client base.
– Developing clients and converting active users into the VIP segment.
– Building long-term relationships and increasing client loyalty through a personalized approach.
– Handling objections and complex client cases effectively.
– Collaborating with internal teams to improve client experience.
– Maintaining accurate reporting and documenting interactions in CRM systems.

It’s a match if you have:

– Fluent German (C1 or higher) — this is a must.
– Strong communication skills and confidence in client interactions.
– Ability to listen carefully and deeply understand client needs.
– High level of empathy and a client-oriented mindset.
– Ability to handle objections and complex cases.
– Experience working with European markets is a plus.
– Ability to work in a dynamic environment and quickly adapt to changes.

Nice to have:

– Background in sales or client-facing roles.
– Experience in call centers or working with clients on weekends.

What we offer:

– Schedule: 5/2 from 12:00 to 21:00, with a future transition option to 3/4 from 12:00 to 22:00.
– Remote work or offices in Warsaw / Kyiv — you choose.
– Competitive compensation: fix + performance-based bonus.
– 24 paid vacation days, sick leaves, and health insurance (UA-based, other locations in progress).
– Clear career paths: Account Manager → Pre-VIP / VIP Manager or Account Manager → Team Lead.
– A supportive and friendly team with a strong knowledge-sharing culture.
– Coverage for professional learning and events.
– Team buildings, birthday greetings, and real human connection beyond work.
– Zero cooperation with the aggressor state and its affiliated businesses.

Ready to grow with us?

Send over your CV — we’d love to get to know you and discuss how you can grow at Softsich 🚀

Softsich is a young and ambitious international product tech company developing scalable B2B digital platforms for global partners.

We are expanding our Retention team and are looking for a proactive German-speaking Account Manager who enjoys client communication, knows how to build long-term relationships, and is ready to drive users toward VIP status.

In this role, you’ll work with an active and loyal player base, focus on outbound communication, increase engagement, and directly impact retention and revenue.

Your key responsibilities will include:

– Making outbound calls to active and loyal users to maintain engagement and strengthen relationships.
– Presenting promotions, bonuses, and special offers tailored to client needs.
– Collecting and analyzing client feedback regarding product and service quality.
– Handling incoming requests via email and other communication channels.
– Providing consultations and support to clients, resolving issues and answering questions.
– Ensuring sufficient coverage of the active client base.
– Developing clients and converting active users into the VIP segment.
– Building long-term relationships and increasing client loyalty through a personalized approach.
– Handling objections and complex client cases effectively.
– Collaborating with internal teams to improve client experience.
– Maintaining accurate reporting and documenting interactions in CRM systems.

It’s a match if you have:

– Fluent German (C1 or higher) — this is a must.
– Strong communication skills and confidence in client interactions.
– Ability to listen carefully and deeply understand client needs.
– High level of empathy and a client-oriented mindset.
– Ability to handle objections and complex cases.
– Experience working with European markets is a plus.
– Ability to work in a dynamic environment and quickly adapt to changes.

Nice to have:

– Background in sales or client-facing roles.
– Experience in call centers or working with clients on weekends.

What we offer:

– Schedule: 5/2 from 12:00 to 21:00, with a future transition option to 3/4 from 12:00 to 22:00.
– Remote work or offices in Warsaw / Kyiv — you choose.
– Competitive compensation: fix + performance-based bonus.
– 24 paid vacation days, sick leaves, and health insurance (UA-based, other locations in progress).
– Clear career paths: Account Manager → Pre-VIP / VIP Manager or Account Manager → Team Lead.
– A supportive and friendly team with a strong knowledge-sharing culture.
– Coverage for professional learning and events.
– Team buildings, birthday greetings, and real human connection beyond work.
– Zero cooperation with the aggressor state and its affiliated businesses.

Ready to grow with us?

Send over your CV — we’d love to get to know you and discuss how you can grow at Softsich 🚀

Softsich is a young and ambitious international product tech company developing scalable B2B digital platforms for global partners.

We are expanding our Retention team and are looking for a proactive German-speaking Account Manager who enjoys client communication, knows how to build long-term relationships, and is ready to drive users toward VIP status.

In this role, you’ll work with an active and loyal player base, focus on outbound communication, increase engagement, and directly impact retention and revenue.

Your key responsibilities will include:

– Making outbound calls to active and loyal users to maintain engagement and strengthen relationships.
– Presenting promotions, bonuses, and special offers tailored to client needs.
– Collecting and analyzing client feedback regarding product and service quality.
– Handling incoming requests via email and other communication channels.
– Providing consultations and support to clients, resolving issues and answering questions.
– Ensuring sufficient coverage of the active client base.
– Developing clients and converting active users into the VIP segment.
– Building long-term relationships and increasing client loyalty through a personalized approach.
– Handling objections and complex client cases effectively.
– Collaborating with internal teams to improve client experience.
– Maintaining accurate reporting and documenting interactions in CRM systems.

It’s a match if you have:

– Fluent German (C1 or higher) — this is a must.
– Strong communication skills and confidence in client interactions.
– Ability to listen carefully and deeply understand client needs.
– High level of empathy and a client-oriented mindset.
– Ability to handle objections and complex cases.
– Experience working with European markets is a plus.
– Ability to work in a dynamic environment and quickly adapt to changes.

Nice to have:

– Background in sales or client-facing roles.
– Experience in call centers or working with clients on weekends.

What we offer:

– Schedule: 5/2 from 12:00 to 21:00, with a future transition option to 3/4 from 12:00 to 22:00.
– Remote work or offices in Warsaw / Kyiv — you choose.
– Competitive compensation: fix + performance-based bonus.
– 24 paid vacation days, sick leaves, and health insurance (UA-based, other locations in progress).
– Clear career paths: Account Manager → Pre-VIP / VIP Manager or Account Manager → Team Lead.
– A supportive and friendly team with a strong knowledge-sharing culture.
– Coverage for professional learning and events.
– Team buildings, birthday greetings, and real human connection beyond work.
– Zero cooperation with the aggressor state and its affiliated businesses.

Ready to grow with us?

Send over your CV — we’d love to get to know you and discuss how you can grow at Softsich 🚀

About the Project

We are building a next-generation tokenization platform that bridges traditional enterprise systems with blockchain infrastructure. The platform enables secure asset tokenization, real-time data processing, smart contract execution, and seamless integrations with external financial and enterprise systems.

We're looking for a Strong Middle Engineer who enjoys solving complex integration challenges, building reliable data pipelines, and working with blockchain technologies in production.

Responsibilities

• Design and develop scalable data processing pipelines.
• Build integrations between enterprise systems, APIs, databases, and blockchain networks.
• Develop services responsible for asset tokenization workflows.
• Integrate and interact with smart contracts.
• Process and validate on-chain and off-chain data.
• Design event-driven architectures for transaction processing.
• Optimize data flows for performance, reliability, and scalability.
• Ensure data consistency across multiple systems.
• Collaborate with backend engineers, blockchain developers, DevOps, and solution architects.
• Participate in architecture discussions and technical decision-making.

Required Skills

Backend

• 4+ years of commercial software development experience.
• Strong Python experience.
• Experience with FastAPI or similar frameworks.
• REST API and GraphQL.
• Microservice architecture.
• Async programming.

Data Engineering

• SQL (PostgreSQL).
• NoSQL databases.
• ETL/ELT pipeline development.
• Kafka, RabbitMQ, or similar messaging systems.
• Data validation and transformation.
• Large-scale data processing.

Blockchain

• Experience integrating blockchain networks.
• Understanding of Ethereum ecosystem.
• Smart contract interaction (Web3).
• Token standards (ERC-20, ERC-721, ERC-1155).
• Wallet integrations.
• Transaction lifecycle understanding.

Cloud & Infrastructure

• Docker.
• Kubernetes (basic knowledge is sufficient).
• AWS or Azure.
• CI/CD.
• Git.

Nice to Have

• Solidity.
• Smart contract development.
• The Graph.
• Chainlink.
• Polygon.
• Hyperledger.
• Apache Airflow.
• dbt.
• Redis.
• Terraform.

Strong Middle Data Engineer / Blockchain Integration Engineer

About the Project

We are building a next-generation tokenization platform that bridges traditional enterprise systems with blockchain infrastructure. The platform enables secure asset tokenization, real-time data processing, smart contract execution, and seamless integrations with external financial and enterprise systems.

We're looking for a Strong Middle Engineer who enjoys solving complex integration challenges, building reliable data pipelines, and working with blockchain technologies in production.

Responsibilities

• Design and develop scalable data processing pipelines.
• Build integrations between enterprise systems, APIs, databases, and blockchain networks.
• Develop services responsible for asset tokenization workflows.
• Integrate and interact with smart contracts.
• Process and validate on-chain and off-chain data.
• Design event-driven architectures for transaction processing.
• Optimize data flows for performance, reliability, and scalability.
• Ensure data consistency across multiple systems.
• Collaborate with backend engineers, blockchain developers, DevOps, and solution architects.
• Participate in architecture discussions and technical decision-making.

Required Skills

Backend

• 4+ years of commercial software development experience.
• Strong Python experience.
• Experience with FastAPI or similar frameworks.
• REST API and GraphQL.
• Microservice architecture.
• Async programming.

Data Engineering

• SQL (PostgreSQL).
• NoSQL databases.
• ETL/ELT pipeline development.
• Kafka, RabbitMQ, or similar messaging systems.
• Data validation and transformation.
• Large-scale data processing.

Blockchain

• Experience integrating blockchain networks.
• Understanding of Ethereum ecosystem.
• Smart contract interaction (Web3).
• Token standards (ERC-20, ERC-721, ERC-1155).
• Wallet integrations.
• Transaction lifecycle understanding.

Cloud & Infrastructure

• Docker.
• Kubernetes (basic knowledge is sufficient).
• AWS or Azure.
• CI/CD.
• Git.

Nice to Have

• Solidity.
• Smart contract development.
• The Graph.
• Chainlink.
• Polygon.
• Hyperledger.
• Apache Airflow.
• dbt.
• Redis.
• Terraform.

What We're Looking For

• Strong analytical thinking.
• Experience working with distributed systems.
• Ability to understand complex business domains.
• Ownership mindset.
• Strong debugging skills.
• Good communication skills.
• Upper-Intermediate English or higher.

What You'll Work On

• Asset tokenization platform.
• Smart contract integrations.
• Financial transaction processing.
• Blockchain event indexing.
• Enterprise data integrations.
• API development.
• Data quality and validation.
• High-load backend services.
• Real-time processing pipelines.

We Offer

• Work on a cutting-edge blockchain and fintech product.
• Modern cloud-native architecture.
• Opportunity to influence technical decisions.
• International team.
• Flexible working environment.
• Long-term project with challenging engineering tasks.
• Strong analytical thinking.
• Experience working with distributed systems.
• Ability to understand complex business domains.
• Ownership mindset.
• Strong debugging skills.
• Good communication skills.
• Upper-Intermediate English or higher.

What You'll Work On

• Asset tokenization platform.
• Smart contract integrations.
• Financial transaction processing.
• Blockchain event indexing.
• Enterprise data integrations.
• API development.
• Data quality and validation.
• High-load backend services.
• Real-time processing pipelines.

We Offer

• Work on a cutting-edge blockchain product.
• Modern cloud-native architecture.
• Opportunity to influence technical decisions.
• International team.
• Flexible working environment.
• Long-term project with challenging engineering tasks.
  Project-based hourly rated job

Our team is looking for a detail-oriented Manual QA Engineer to help ensure the quality, stability, and security of our iGaming / FinTech platform used by players and partners worldwide.

In this role, you’ll work closely with developers, product managers, and designers to validate complex web-based solutions, uncover issues early, and ensure smooth releases. From testing user-facing features to validating backend APIs, you’ll play a key role in delivering reliable, high-performance experiences in a regulated, fast-moving domain.

This is a great opportunity to grow as a QA professional while working on a real, production-scale product with global impact.

Required Qualifications

• 3+ years of commercial experience in manual QA / software testing.
• Strong understanding of the end-to-end QA process and its role within SDLC.
• Clear understanding of how, where, and why test cases, checklists, and test scenarios are created, and ability to design test coverage independently.
• Solid knowledge of different testing types and hands-on experience applying them in real situations (Functional, Regression, Integration, End-to-End, Exploratory / research-based testing, Acceptance testing)
• Hands-on experience testing web applications in production environments.
  Strong practical experience with API testing using modern tools (Postman, Swagger or similar).
  Good understanding of client-server architecture, HTTP, WebSocket, and data flows.
  Experience working with modern QA tools (Test management systems, Bug tracking systems, Browser DevTools).
• Experience with test research, risk-based testing, and identifying edge cases.
• Basic to intermediate understanding of test automation principles and hands-on experience working alongside automated tests (running, analyzing results, reproducing failures, contributing to coverage).
• Strong analytical thinking, attention to detail, and an ownership mindset.
• Working proficiency in written and spoken English.

Preferred Qualifications & Bonus Points

• Experience in: Finance, iGaming, Bookmaker or FinTech, or other regulated / high-risk domains.
• Experience with automated and AI-driven / AI-assisted testing approaches, including the use of AI tools to improve test design, test coverage, execution efficiency, and defect detection.
• Hands-on experience with test automation tools or frameworks (e.g. Playwright, Cypress, Selenium) at a basic or intermediate level.
• Experience using Wireshark / Charles Proxy, or similar tools for traffic inspection and debugging.
• Understanding of high-load systems, real-time user flows, and data consistency risks.
• Experience working in Agile / Scrum teams with frequent releases and tight delivery cycles.
• Fluency in Ukrainian or Russian.

What You’ll Do

• Perform manual testing of new and existing features across the web platform in a production-scale environment.
• Analyze product and technical requirements to design effective, risk-based test coverage.
• Independently design, maintain, and evolve test cases, checklists, and test scenarios.
• Select and apply the most appropriate testing types based on feature complexity, risks, and business impact.
• Conduct exploratory and research-based testing to identify edge cases and non-obvious issues.
• Test backend APIs, integrations, and data flows to ensure system reliability and data integrity.
• Identify, document, track, and verify defects throughout the entire development lifecycle.
• Collaborate closely with developers, product managers, and designers to ensure high-quality and predictable releases.
• Participate in regression testing, release validation, and post-release verification.
• Contribute to the continuous improvement of QA processes, testing approaches, and quality standards.

We Offer

• Competitive compensation, aligned with candidate's skills and experience.
• Remote-first environment with flexible hours, with core collaboration in European time zones.
• Corporate equipment: MacBook Pro for candidates based in Ukraine.
• Established development practices, cutting-edge technology stack with complex tasks and global impact.
• Friendly, supportive team and a value-driven culture.
• Paid vacation and sick leave.

We are looking for an aspiring Lead Generation Specialist to join our dynamic team. If you are an ambitious individual aiming for professional development, we have an excellent opportunity for you to realise your potential. The field of IoT is expected to continue growing by 25% annually. If you're enthusiastic about joining this field, TEKTELIC offers an excellent environment for advancing your professional journey. 💙

Overview of the Role

You'll mainly focus on turning cold leads into active clients by using follow-up techniques, including setting up introductory calls with prospects. Being proactive, an excellent communicator, and crafting messages to our Ideal Customer Profile are key to success in this role. 

Requirements:

- 6+ months of proven experience in lead generation, sales, or a similar role, with a focus on cold outreach. 

- Knowledge of CRM systems like HubSpot, Pipedrive, etc.

- Ability to work independently and as a productive sales team member, making outbound prospecting reach outs by email, LinkedIn, and other platforms daily.

- Excellent English communication skills, both written and verbal. 

- Experience using LinkedIn and Sales Navigator or similar prospecting applications for new lead generation while maintaining follow-ups with old prospecting connections.

- Experience in crafting effective communication sequences. 

Responsibilities: 

- Nurture leads using Sales Navigator. 

- Create personalized messages and follow-ups. 

- Schedule introductory meetings with clients. 

- Conduct daily professional network research and outreach via LinkedIn, Sales Navigator, Industry Conference sites, and other resources.

- Collaborate closely with the Sales Team. 

- Record daily activities in CRM. 

We Offer:

- Competitive compensation.

- PE accounting support.

- Well-being program.

- Comprehensive benefits package, including health insurance from day one.

- Opportunity for career growth in the dynamic field of IoT.

- Collaborative and innovative work environment.

- Potential for rapid advancement to roles such as Sales Manager or Business Development Manager.

- Paid Time-off and an additional week off during Christmas Holidays.

- Engaging social events.

If you are passionate about sales, possess excellent communication skills, and are excited about contributing to the growth of the IoT industry, we invite you to apply for the Lead Generation Manager position at TEKTELIC. Join us in addressing real-life challenges through cutting-edge IoT solutions.

What You’ll Do

• Drive product direction and continuously improve business performance and efficiency
• Own and manage the product backlog: define, prioritize, and ensure timely delivery of tasks
• Conduct market analysis and deeply understand user needs, behaviors, and pain points
• Ensure backlog transparency and clarity for both the development team and stakeholders
• Collaborate closely with analytics to make data-driven decisions and measure product success

What We’re Looking For

• Proven experience as a Product Owner / Product Manager / Business Analyst in eCommerce projects
• Strong hands-on experience with web analytics and data interpretation
• Solid understanding of APIs: ability to read and interpret requests/responses and translate them into clear requirements
• Practical experience with Agile methodologies (Scrum, Kanban)
• Understanding of microservices architecture and cross-team collaboration within such environments
• Deep knowledge of the full product development lifecycle

Nice to Have

• Experience working with high-traffic products or scaling eCommerce platforms
• Strong communication skills and ability to align multiple stakeholders
• Analytical mindset with a focus on measurable impact

We're a software development company working across multiple client products. We're currently exploring the market to connect with strong Technical Product Managers who can bridge the gap between business goals and engineering execution.
 

Responsibilities

• Translate business requirements into clear technical specs and user stories
• Work closely with development, design, and QA teams throughout the product lifecycle
• Manage and prioritize the product backlog; drive sprint planning and release cycles
• Communicate progress, blockers, and trade-offs to stakeholders and clients
• Identify technical risks early and collaborate with engineers on solutions
• Participate in discovery, scoping, and estimation for new features and projects
   

Requirements

• 3+ years in a Product Manager or Technical PM role in a software company
• Solid understanding of software development processes (Agile/Scrum)
• Ability to read and discuss technical documentation, APIs, and architecture
• AI fluency is a must: we actively use Claude, Claude Code, and other AI tools across the team and expect the same from you
• Experience working with cross-functional teams (dev, design, QA, business)
• Strong written and spoken English
• Comfortable working with tools like Jira, Confluence, Figma

Nice to have

• Background in software development or a technical degree
• Experience in a product studio or outsource/outstaff company

• Familiarity with AI tools in the product workflow

   

What we offer

• Competitive salary with regular reviews.
• Support for individual entrepreneurs with accounting assistance.
• Fully remote work.
• A clear path for professional development and growth.
• A friendly team environment and engaging team-building activities (online and offline).

• Building a trading platform for innovative international top-tier hedge fund from the ground up, comprising of front-office system for traders, pre-trade checks and analysis, intra-day positions management, order management and routing, risks and limits management, reports of trading activities, FIX connectivity, market data providers connectivity (e.g. Bloomberg B-pipe).

   

• Responsibilities:

  Interaction with business stakeholders and end users, functional testing of team deliverables.
  - manual testing of desktop application (trading platform)
  - manual testing of mobile application (web version)
  - automation testing as a plus (Cucumber, Selenium, etc)
  - creation test cases in TestRail
  - be pro-active in terms of process building

   

• Mandatory Skills Description:

  min 7 years of QA Automation (Java or Python) experience
  Analytical Skills, Manual Testing, Linux/Unix
  Good communication skills/proactive
  Trading experience

   

• Nice-to-Have Skills Description:

  automation skills, business analysis

   

• Languages:
  • English: B2 Upper Intermediate

LineUp is a fast-growing IT outsourcing company with 13 years of experience. We are currently looking for a Middle Fullstack Developer to join a long-term product project.

You will become part of the Smart City ecosystem - a large-scale software product for the Middle East market. This is a fully agile, product-oriented environment with real users and a tangible impact on urban infrastructure.

Key Responsibilities:

• Develop and maintain solutions using Node.js, NestJS, React, and Next.js.
• Build and manage microservices and monorepo environment architectures on the backend.
• Design, implement, and optimize database solutions using PostgreSQL (AWS RDS) and caching with Redis.
• Work with various AWS services including SQS, S3, Lambda, IAM, EC2, and EKS/ECS to build scalable and efficient cloud-based solutions.
• Contribute to containerization and deployment processes using Docker, including building images and pushing to registries, implementing and maintaining CI/CD pipelines using GitLab runners.
• Utilize state management tools like Zustand or similar, and integrate frontend applications with backend services using TanStack (React Query) or other data-fetching libraries.
• Ensure UI/UX consistency by leveraging component libraries such as PrimeReact or similar and building reusable components.
• Implement monitoring and observability for applications using Prometheus and Grafana to ensure system reliability and performance.
• Participate in the agile development process, contributing to scram events, fostering a collaborative and cross-functional team environment.

• Stay current with the latest technologies and best practices, and promote continuous learning and self-development within the team. Mentor other team members, providing guidance and sharing your knowledge.

   

Qualifications:

• Minimum of 3 years of experience in backend and frontend development with a strong focus on Node.js, NestJS, React, Next.js, and related technologies.
• Experience with microservices architectures and monorepo environments will be a plus.
• Proficiency in PostgreSQL (AWS RDS), Redis, and backend data management.
• Familiarity with AWS cloud services including SQS, S3, Lambda, IAM, EC2, and EKS/ECS.
• Understanding of Docker, CI/CD pipelines, and experience with GitLab runners.
• Experience with frontend state management libraries (e.g., Zustand) and data-fetching tools like TanStack (React Query).
• Familiarity with component libraries such as PrimeReact or similar, and a working knowledge of React hooks.
• Ability to document architectures, designs, and processes clearly.
• Excellent problem-solving skills and attention to detail, with a passion for creating high-quality, performant code.
• Ability to work effectively both independently and as part of a team in an agile environment.
• Good communication skills, with the ability to interact professionally with team members and stakeholders.

• English at Upper-Intermediate level and above.

   

What We Offer:

• Competitive salary.
• A collaborative and innovative work environment.
• Professional development opportunities.
• The chance to work on exciting and challenging projects.
• A supportive company culture.

Join us in delivering excellence through agility and innovation!