Fresh remote Backend Developer jobs in Poland

Poland, North America, Europe

Key requirements: 3 years of experience, Solidity, Yul, Blockchain/EVM protocols, Strongly typed languages (C++, Scala, Go), Merkle Trees, Algorithms and data structures, Cryptography knowledge, High-load systems understanding, Protocol design

Matter Labs

Matter Labs is a globally operating blockchain company specializing in ZKsync, a Layer 2 zkEVM solution for Ethereum scaling, targeting both developers and end-users in the cryptocurrency market.

Remote policy: Matter Labs operates with a remote-first approach, allowing team members to work from various locations, including the East Coast U.S., EU, and UK, with flexibility for collaboration across time zones.

Senior Ruby-on-Rails Engineer (Full Remote - Poland)

Key requirements: 5 years of experience, Ruby-on-Rails, Tech scale-up experience, Large-scale product experience, Strong communication skills, Ownership and commitment, User-centricity, Comfort with uncensored content

EverAI

EverAI is a leading AI companionship platform based in a remote-first environment, offering Candy.AI, the world's largest AI girlfriend/boyfriend app, targeting a global B2C market with over 40 million users.

Remote policy: EverAI is a fully remote company, allowing team members to work from anywhere. We embrace a flexible hiring approach, welcoming applicants from various regions.

Senior Ruby-on-Rails Engineer (Full Remote - Europe)

Remote policy: EverAI is a fully remote company, allowing team members to work from anywhere. We embrace a flexible hiring approach, welcoming applicants from various regions.

Senior Backend Engineer (Elixir)

$53,350 to $119,850 per year

Key requirements: Elixir, Postgres, CI/CD, APIs design, Cross-team collaboration, Mentorship

Remote is a global HR tech B2B SaaS platform headquartered remotely, specializing in payroll, compliance, and employment management for businesses hiring international teams.

Remote policy: Remote is a fully remote company with team members across six continents, hiring from various locations globally to support a diverse and asynchronous work culture.

Senior Backend Engineer (Elixir)

$53,350 to $119,850 per year

Key requirements: Elixir, Postgres, CI/CD (GitLab), API design, Cross-team collaboration, Mentorship

Remote is a global HR tech B2B SaaS platform headquartered remotely, specializing in payroll, compliance, and employment management for businesses hiring international teams.

Remote policy: Remote is a fully remote company with team members across six continents, hiring from various locations globally to support a diverse and asynchronous work culture.

Senior Backend Engineer

$53,300 to $119,850 per year

Key requirements: Postgres, CI/CD, Elixir, Functional Programming, AWS, Docker, Kubernetes

Remote is a global HR tech B2B SaaS platform headquartered remotely, specializing in payroll, compliance, and employment management for businesses hiring international teams.

Remote policy: Remote is a fully remote company with team members across six continents, hiring from various locations globally to support a diverse and asynchronous work culture.

Senior Backend Engineer

$53,300 to $119,850 per year

Key requirements: Elixir, Phoenix, Postgres, GitLab, CI/CD, Functional Programming, AWS, APIs design, Mentorship

Remote is a global HR tech B2B SaaS platform headquartered remotely, specializing in payroll, compliance, and employment management for businesses hiring international teams.

Remote policy: Remote is a fully remote company with team members across six continents, hiring from various locations globally to support a diverse and asynchronous work culture.

Backend Engineer

$42,600 to $95,850 per year

Key requirements: Elixir, Postgres, CI/CD (GitLab)

Remote is a global HR tech B2B SaaS platform headquartered remotely, specializing in payroll, compliance, and employment management for businesses hiring international teams.

Remote policy: Remote is a fully remote company with team members across six continents, hiring from various locations globally to support a diverse and asynchronous work culture.

Backend Engineer

$42,600 to $95,850 per year

Key requirements: Elixir, Postgres, CI/CD (GitLab)

Remote is a global HR tech B2B SaaS platform headquartered remotely, specializing in payroll, compliance, and employment management for businesses hiring international teams.

Remote policy: Remote is a fully remote company with team members across six continents, hiring from various locations globally to support a diverse and asynchronous work culture.

Senior Backend Engineer (Go)

Key requirements: 3 years of experience, Go, Microservice-based architectures, Cloud environments (AWS, Azure, GCP), Building systems from scratch, Containerization (Docker, Kubernetes), Blockchain project experience

Trust Wallet

Trust Wallet is a leading B2C multi-chain, non-custodial cryptocurrency wallet enabling users to manage over 10 million digital assets, headquartered remotely with a global user base.

Remote policy: Trust Wallet operates as a fully remote company, hiring globally with team members working from various countries. Candidates must have the right to work in their respective locations.

Golang Engineer

Key requirements: Go, Solidity, High concurrency systems, Blockchain principles, Foundry, Hardhat, ETH staking, DeFi protocols

Poland, Europe, Asia

Windranger Labs

Windranger Labs is a fully remote venture builder in the web3 space, specializing in blockchain infrastructure, gaming ecosystems, and DAO tools for B2B and B2C markets.

Remote policy: Windranger Labs supports fully remote work and hires from various regions, including APAC and EMEA, with team members collaborating across time zones.

Staff Software Engineer - Backend, Cards

Key requirements: 7 years of experience, .NET (C#), Financial systems with state machine logic, Distributed systems, Queue-based architectures, Consumer-facing product scaling, AI-powered development tools, Mentoring engineers

Tilt Finance

Tilt Finance is a San Francisco-based fintech B2C company offering innovative cash advances, credit cards, and personal finance tools for underserved consumers in the US.

Remote policy: Tilt Finance embraces a virtual-first approach, with team members collaborating across 14 countries and 12 time zones. The company is open to hiring from various regions, fostering a diverse and inclusive work environment.

Senior Software Engineer, Backend

Key requirements: 3 years of experience, .NET (C#), Scaling consumer-facing products, AI-powered development tools, Collaborative problem-solver, Continuous learning

Tilt Finance

Tilt Finance is a San Francisco-based fintech B2C company offering innovative cash advances, credit cards, and personal finance tools for underserved consumers in the US.

Senior Backend Engineer, NIRA

Key requirements: Java, AWS-native environments, DynamoDB, Athena, Lambda, Scalability solutions, Clear communicator, Product Engineer mentality

Tilt Finance

Tilt Finance is a San Francisco-based fintech B2C company offering innovative cash advances, credit cards, and personal finance tools for underserved consumers in the US.

SAP S/4 HANA Public Cloud ABAP Developer- Freelance

Key requirements: 10 years of experience, ABAP, RAP Knowledge, Core Data Services (CDS), Cloud and SAP S/4HANA Knowledge, Integration Skills, Fiori/UI5 Experience, Agile Methodologies

Asar Digital

ASAR Digital is a Lisle, Illinois-based IT services company specializing in SAP implementations and customer experience (CX) solutions for enterprises in the B2B sector.

Rust Engineer

Key requirements: 5 years of experience, Rust, PostgreSQL, System design, Cloud environments, Self-management, Distributed systems knowledge

Supabase

Supabase is an open-source BaaS platform headquartered remotely, specializing in Postgres database solutions for developers in the software development industry, targeting both B2C and B2B markets.

Remote policy: Supabase is a fully remote company that hires globally, allowing team members to work from anywhere in the world. We support a distributed workforce with no physical offices.

Platform Engineer: Kubernetes

Key requirements: Go, Typescript, Kubernetes, AWS, EKS, Cloud-managed Kubernetes services, Production operations mindset, Ownership mindset

Supabase

Supabase is an open-source BaaS platform headquartered remotely, specializing in Postgres database solutions for developers in the software development industry, targeting both B2C and B2B markets.

Remote policy: Supabase is a fully remote company that hires globally, allowing team members to work from anywhere in the world. We support a distributed workforce with no physical offices.

Senior Back End Engineer - Sportsbook

$120,000 to $160,000 per year

Poland, Europe

Key requirements: 7 years of experience, Sports betting application, Java, Kotlin, Spring, AWS, CI/CD pipelines, Distributed systems, Architectural leadership

Thrill Labs

Thrill Labs is a London-based B2C crypto gaming company specializing in online casino and sports betting experiences through its platform, Thrill.com, targeting a global audience.

Remote policy: Thrill Labs supports remote work for various roles, primarily hiring from the EU. Team members are located in regions such as London, with a focus on collaboration across time zones.

Senior Back End Engineer

Key requirements: 7 years of experience, Java/Kotlin, Spring, Distributed systems, AWS, CI/CD pipelines, iGaming or fintech experience

Poland, Europe

Thrill Labs

Thrill Labs is a London-based B2C crypto gaming company specializing in online casino and sports betting experiences through its platform, Thrill.com, targeting a global audience.

Platform - Software Engineer

Key requirements: Ruby, AWS, PostgreSQL, Terraform, Kubernetes, CI/CD, Observability tools, Containerization, Remote collaboration, Clean code

HighlightTA

HighlightTA is a Toronto-based B2B SaaS HR tech firm specializing in on-demand talent acquisition and recruitment services for startups and scaleups across Canada and the US.

Remote policy: HighlightTA supports remote work for roles in Canada and the United States, with team members collaborating across time zones.

Sr. SWE for Code Reviewing LLM Data Training (Ruby)

Key requirements: 5 years of experience, Ruby, RubyGems, RSpec, Minitest, AI training experience, LLM evaluation, Annotation platform familiarity, Debugging tools, Structured QA workflows

Key requirements: 5 years of experience, Kotlin expertise, Gradle, AI training experience, LLM evaluation, Structured QA workflows, Debugging tools, Kotlin/JVM ecosystem

G2i is a U.S.-based B2B SaaS platform specializing in connecting companies with top engineering talent, including software engineers and AI specialists.

Remote policy: G2i is a fully remote company hiring engineers for contract roles worldwide, with team members located in various regions such as LATAM, Europe, and Canada.

Sr. SWE for Code Reviewing LLM Data Training (Kotlin)

Key requirements: 5 years of experience, Go, Go syntax, Concurrency patterns, Debugging, Testing frameworks, AI training experience, LLM evaluation, Annotation platforms, Microservices architecture

G2i is a U.S.-based B2B SaaS platform specializing in connecting companies with top engineering talent, including software engineers and AI specialists.

Remote policy: G2i is a fully remote company hiring engineers for contract roles worldwide, with team members located in various regions such as LATAM, Europe, and Canada.

Sr. SWE for Code Reviewing LLM Data Training (Go)

Key requirements: 5 years of experience, C#, .NET framework/Core, NuGet, xUnit, NUnit, MSTest, AI training experience, LLM evaluation, annotation platforms, RLHF exposure

G2i is a U.S.-based B2B SaaS platform specializing in connecting companies with top engineering talent, including software engineers and AI specialists.

Remote policy: G2i is a fully remote company hiring engineers for contract roles worldwide, with team members located in various regions such as LATAM, Europe, and Canada.

Sr. SWE for Code Reviewing LLM Data Training (C#)

G2i is a U.S.-based B2B SaaS platform specializing in connecting companies with top engineering talent, including software engineers and AI specialists.

Remote policy: G2i is a fully remote company hiring engineers for contract roles worldwide, with team members located in various regions such as LATAM, Europe, and Canada.

Senior IAM Engineer (Enterprise)

301,000 zł to 401,000 zł per year

Key requirements: SailPoint, Okta IGA, Privileged Access Management, Python, Infrastructure-as-Code, AWS IAM integration, Compliance frameworks

Affirm

Affirm is a U.S.-based fintech company offering a buy now, pay later (BNPL) service that allows consumers to make purchases in installments, primarily targeting the retail sector with both B2C and B2B business models.

Remote policy: Affirm is a remote-first company, allowing employees to work from various locations within their country of employment, including Poland, where the majority of roles can be remote.

Python Developer - Kraków - Remote

Key requirements: 5 years of experience, Python, Machine Learning, Predictive Analytics, Django, Flask, Data Science, International exposure

TheAgileWorks UK

TheAgileWorks UK is a London-based staffing and recruiting firm specializing in placing senior IT professionals in remote data-related roles, primarily serving the consulting sector.

Remote policy: TheAgileWorks UK supports remote work for contract roles, hiring primarily from the United Kingdom and Poland, with team members working remotely across these regions.

ServiceNow Developer - Kraków, Wrocław - Remote

Key requirements: 5 years of experience, ServiceNow Custom Application Development, ServiceNow Version Upgrades, JavaScript, CSM experience, Performance analytics, GitHub, Scrum methodology, Techno-functional stakeholder handling

TheAgileWorks UK

TheAgileWorks UK is a London-based staffing and recruiting firm specializing in placing senior IT professionals in remote data-related roles, primarily serving the consulting sector.

Remote policy: TheAgileWorks UK supports remote work for contract roles, hiring primarily from the United Kingdom and Poland, with team members working remotely across these regions.

Workflow Developer - Kraków, Poland - Remote Working

Key requirements: 3 years of experience, Flowable, BPMN, Micro-services infrastructure, PEGA or Java (nice to have), Good communication skills

TheAgileWorks UK

TheAgileWorks UK is a London-based staffing and recruiting firm specializing in placing senior IT professionals in remote data-related roles, primarily serving the consulting sector.

Remote policy: TheAgileWorks UK supports remote work for contract roles, hiring primarily from the United Kingdom and Poland, with team members working remotely across these regions.

Senior Software Engineer (Remote)

Key requirements: 5 years of experience, Go, Python, React, Next.js, TypeScript, PostgreSQL, MySQL, GCP, AWS, AI/ML exposure, Docker, Kubernetes, CI/CD, early-stage startup experience

TENEX.AI

TENEX.AI is a Mountain View, CA-based AI-native cybersecurity B2B provider specializing in Managed Detection and Response (MDR) services for enterprise organizations.

Remote policy: TENEX offers a flexible remote work policy, allowing fully remote positions for exceptional candidates while also encouraging relocation to key hubs in Florida and Kansas. Team members are supported in various locations, fostering collaboration across time zones.

Sr Scala Developer ( REMOTE)