Backend Developer Jobs in Sofia

Backend Developer jobs in Sofia hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $55,000/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

Sofia
AI/ML
Data Science
Backend
Frontend
Mobile
DevOps
Web3
Games
Hardware
Robotics
Security
QA
Executive
Networking
Product
Design
Analytics
Support
Enterprise Apps
Quantum

GitLab

gitlab.com
GitLab is a comprehensive, open-source DevSecOps platform that enables software teams to manage the entire software development lifecycle within a single application. It streamlines operations by offering integrated tools for source code management, continuous integration and deployment (CI/CD), security testing, and project planning. By consolidating the entire pipeline into one continuous workflow, it helps engineering teams accelerate code delivery, improve collaboration, and maintain strict security compliance.
gitlab.com • HQ: San Francisco, United States • Information Technology • Cybersecurity • DevSecOps • DevOps • 1001-5000 employees • Est. 2011
HQ: San Francisco, United States • Information Technology • Cybersecurity • DevSecOps • DevOps • 1001-5000 employees • Est. 2011
Verified live · 1 hour ago 2 months ago

Senior Backend Engineer (Ruby), AI Engineering: AI Coding

$88k – $167k per year (Estimated) • Equity • Senior • Remote (Europe) • PhD • Full-Time • Senior
Python
Ruby
AI/ML
AI Agents
DevOps
CI/CD
Jenkins
GitLab
Management
Jira
Slack
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Oyster

oysterhr.com
Opportunities for all Where you are shouldn't govern what you do. We're changing the way the world works—one brilliant remote hire at a time.
oysterhr.com • Austin • Toronto • Chicago • Charlotte • Denver • Professional Services • Human Resources
Austin • Toronto • Chicago • Charlotte • Denver • Professional Services • Human Resources
Verified live · 12 hours ago 21 day ago

Senior Engineer (Platform)

Senior • 5+ years exp • Remote (EMEA) • Full-Time • Senior • English: C1
Ruby
Ruby
Ruby on Rails
DevOps
AWS
CI/CD
Datadog
Platform Engineering
Terraform
Heroku
QA
Sentry
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DistroKid

distrokid.com
DistroKid is a software platform that helps musicians and other audio creators get their music into major digital stores and streaming services. Its core job is to take the practical work out of digital distribution, so artists can upload tracks, manage releases and credits, and keep their catalogue available across multiple services without having to negotiate separate deals or handle complex delivery requirements themselves. For creators, the problem it solves is straightforward but important, reducing the friction, time and administrative overhead involved in releasing music widely and reliably.
distrokid.com • New York • Streaming & OTT Platforms • Music Industry • Software
New York • Streaming & OTT Platforms • Music Industry • Software
Open 213 daysVerified live · 10 hours ago 8 months ago

API Engineer

$190k per year • Staff+ • 10+ years exp • Remote (EU, United States, United Kingdom) • Visa sponsorship • Staff
Apex
Apex
MuleSoft
AI/ML
Edge AI
DevOps
AWS
Azure
Kong
API Gateway
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Kestra

kestra.ai
kestra.ai • HQ: Paris, France
HQ: Paris, France
Verified live · 2 days ago 25 days ago

Full Stack Engineer, Data Orchestration

Remote (Europe) • Full-Time
Java
SQL
TypeScript
JavaScript
Java
Micronaut
Quarkus
Spring Boot
Databases
Databricks
Google BigQuery
MySQL
PostgreSQL
Snowflake
Apache Kafka
ElasticSearch
AI/ML
Dagster
dbt
Prefect
AI Agents
Frontend
Pinia
React.js
Vite
Vue.js
DevOps
CI/CD
Docker
Rest API
GitHub
AWS
Azure
GCP
Kubernetes
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Workato

workato.com
Workato provides an enterprise automation platform combining integration and workflow orchestration. Business and technical teams build recipes connecting hundreds of applications. Governance controls let central teams manage automation built across departments.
workato.com • HQ: Mountain View, United States • Software • Artificial Intelligence • Middleware Software • 1001-5000 employees • Est. 2013
HQ: Mountain View, United States • Software • Artificial Intelligence • Middleware Software • 1001-5000 employees • Est. 2013
Verified live · 2 hours ago 2 months ago

Staff Software Engineer (Ruby or GOlang)

Staff+ • 7+ years expSofia • Remote (Bulgaria, Spain) • Bachelor's Degree • Staff
Go
Kotlin
Ruby
Rust
SQL
Databases
Apache Kafka
ClickHouse
PostgreSQL
Redis
AI/ML
AI Agents
Model Context Protocol
Frontend
WebAssembly
DevOps
Amazon S3
ArgoCD
AWS
Azure
Docker
GCP
Kubernetes
Terraform
Rest API
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Verified live · 2 hours ago 4 months ago

Senior Software Engineer (Ruby/RoR, Chatbots & AI)

Senior • 5+ years expSofia • Remote (Bulgaria, Spain) • Bachelor's Degree • Senior • English: B1
Go
Ruby
JavaScript
Ruby
Ruby on Rails
AI/ML
AI Agents
Model Context Protocol
Frontend
React.js
Management
Slack
Apply
Open 308 daysVerified live · 2 hours ago 11 months ago

Staff Software Engineer

Staff+ • 7+ years expSofia • Remote (Bulgaria, Spain) • Bachelor's Degree • Staff
Kotlin
Ruby
Rust
SQL
Databases
Apache Kafka
ClickHouse
DynamoDB
PostgreSQL
AI/ML
AI Agents
Model Context Protocol
Frontend
WebAssembly
DevOps
ArgoCD
AWS
Azure
Docker
GCP
Kubernetes
Terraform
Amazon S3
Rest API
Apply
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Coder Technologies

coder.com
Coder is an enterprise cloud development environment (CDE) and developer workspace management platform headquartered in Austin, Texas. Founded in 2017 by Ammar Bandukwala, Kyle Carberry, and John Andrew Entwistle, the company is led by CEO Rob Whiteley and has raised over $170 million in venture funding - including a Series C led by KKR alongside investors such as Bessemer Venture Partners, Redpoint Ventures, and Uncork Capital.
coder.com • HQ: Austin, United States • Artificial Intelligence • Code Intelligence • Information Technology • DevOps • 51-200 employees • Est. 2017
HQ: Austin, United States • Artificial Intelligence • Code Intelligence • Information Technology • DevOps • 51-200 employees • Est. 2017
Verified live · 15 min ago 25 days ago

Senior Partner Deployed Engineer

$70k – $200k per year (Estimated) • Senior • 7+ years exp • Remote (Europe) • Full-Time • Senior • French: C1 • German: C1
AI Agents
LiteLLM
LLM
OpenRouter
EU AI Act
Human-in-the-Loop
Model Context Protocol
Scale AI
DevOps
AWS
Azure
GCP
Kubernetes
Terraform
IAM
Cybersecurity
GDPR
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Creatunity LLC

creatunity.com
We are based in the wonderful city of Dallas, Texas and was founded in 2005 on a desire to help bring the web to local businesses. We are a small agency with a highly focused, creative and fun group of web marketing professionals that love what we...
creatunity.com • Warsaw • Amsterdam • London • Prague • Zagreb • Sales & Marketing • Design & Creative • Web Design
Warsaw • Amsterdam • London • Prague • Zagreb • Sales & Marketing • Design & Creative • Web Design
Verified live · 1 day ago 27 days ago

Lead Full Stack Engineer (AI-first) | Remote (from Europe)

$71k – $118k per year (Estimated) • Lead • Warsaw • Remote (Europe) • Bachelor's Degree • Full-Time • Staff
TypeScript
JavaScript
Node JS
Node JS
Prisma
Databases
PostgreSQL
Supabase
AI/ML
Claude
Cursor
OpenAI
Frontend
Next.js
React.js
DevOps
Vercel
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Omnygroup

omnygroup.co.uk
Omny Group offers professional services in Human Resources, Law, Health & Safety, & Employee Benefits, tailored to support your business needs.
omnygroup.co.uk • San Francisco • New York • London • Legal Services • Professional Services • Human Resources
San Francisco • New York • London • Legal Services • Professional Services • Human Resources
Top 25% payVerified live · 1 day ago 27 days ago

Forward Deployed Software Engineer (EU)

$180k – $240k per year • Senior • 5+ years exp • Remote (EU) • Full-Time • Senior
JavaScript
Python
SQL
TypeScript
Python
Django
Databases
PostgreSQL
Frontend
GraphQL
Next.js
React.js
DevOps
AWS
WebRTC
Marketing
HubSpot
Apply
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SentinelOne

sentinelone.com
SentinelOne is an American cybersecurity company founded in 2013 and headquartered in Mountain View, California that builds autonomous endpoint and cloud protection. Its Singularity platform runs behavioural AI models directly on each protected device, so threats can be detected, blocked and rolled back without waiting for a cloud signature lookup or an analyst decision. The platform has expanded from endpoint detection into cloud workload security, identity threat protection and a security data lake, and the company has traded on the New York Stock Exchange since 2021.
sentinelone.com • HQ: Mountain View, United States • Threat Intelligence • Security Operations • Cybersecurity • Artificial Intelligence • Cybersecurity AI • Cloud Security • Endpoint Security • 1001-5000 employees • Est. 2013
HQ: Mountain View, United States • Threat Intelligence • Security Operations • Cybersecurity • Artificial Intelligence • Cybersecurity AI • Cloud Security • Endpoint Security • 1001-5000 employees • Est. 2013
Open 417 daysVerified live · 2 hours ago 1 year ago

Staff Windows Low Level C++ Engineer - Endpoint security

$91k – $158k per year (Estimated) • Equity • Staff+ • Remote (EU) • Relocation • Full-Time • Staff
C++
Cybersecurity
SentinelOne
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Open 110 daysVerified live · 2 hours ago 4 months ago

Staff Windows Low Level C++ Engineer - Endpoint security

$77k – $160k per year (Estimated) • Equity • Staff+ • Remote (EU) • Relocation • Full-Time • Staff
C++
Cybersecurity
SentinelOne
Apply
Open 412 daysVerified live · 2 hours ago 1 year ago

Staff Windows Low Level C++ Engineer - Endpoint security

$75k – $156k per year (Estimated) • Equity • Staff+ • Remote (EU) • Relocation • Full-Time • Staff
C++
Cybersecurity
SentinelOne
Apply
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The Financial Times is a leading international news organization renowned for its authoritative reporting on global business, finance, economics, and geopolitical affairs. Best known for its signature salmon-pink newsprint and digital platform, the outlet provides in-depth analysis, market data, and investigative journalism to a executive and financial audience worldwide. Operating under Nikkei Inc., it serves over one million paying subscribers with reliable intelligence and editorial insights that shape global market conversations.
ft.com • London • Manila • New York • Belfast • Sofia • Financial Services • Publishing • Media & Entertainment • 51-200 employees
London • Manila • New York • Belfast • Sofia • Financial Services • Publishing • Media & Entertainment • 51-200 employees
Verified live · 1 day ago 2 months ago

Senior Backend Engineer - Storyfinding Team

Senior • Remote/Hybrid (Sofia, Bulgaria) • Senior
Python
SQL
Databases
Amazon Redshift
Google BigQuery
PostgreSQL
AI/ML
Airflow
AI Agents
Streamlit
DevOps
AWS
CI/CD
CircleCI
Amazon ECS
GitHub
Game Dev
Pure Data
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New Era Technology

neweratech.com
New Era Technology is a global managed technology service provider and systems integrator. The company delivers digital transformation, IT infrastructure, and enterprise technology solutions to over 20,000 businesses, healthcare organizations, educational institutions, and financial entities worldwide.
neweratech.com • HQ: Chicago, United States • Cloud Computing • Cybersecurity • Information Technology • 1001-5000 employees
HQ: Chicago, United States • Cloud Computing • Cybersecurity • Information Technology • 1001-5000 employees
Verified live · 2 hours ago 2 months ago

Full Stack Software Engineer

Remote
Java
Java
Spring Boot
Databases
Apache Kafka
DynamoDB
DevOps
AWS
AWS Lambda
CI/CD
Rest API
Amazon S3
API Gateway
Splunk
Apply
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PlanetScale

planetscale.com
PlanetScale offers the world’s fastest and most scalable cloud hosting for Vitess and Postgres.
planetscale.com • San Francisco • AI Infrastructure • Information Technology • Web Hosting
San Francisco • AI Infrastructure • Information Technology • Web Hosting
Open 402 daysTop 25% pay 1 year ago

Software Engineer - PlanetScale Vitess

$120k – $290k per year • Senior • 5+ years exp • Remote (EMEA) • Senior
C++
Go
Java
Python
Databases
MySQL
PostgreSQL
DevOps
AWS
Azure
GCP
Kubernetes
Apply
Open 103 daysVerified live · 11 hours ago 4 months ago

Software Engineer - PlanetScale Postgres

Senior • 5+ years exp • Remote (EMEA, United States) • Senior
Python
Ruby
Rust
Databases
PostgreSQL
DevOps
AWS
Azure
GCP
Kubernetes
Apply
Top 25% payVerified live · 11 hours ago 3 months ago

Software Engineer - Neki Orchestration

$120k – $290k per year • Senior • 5+ years expSan Francisco • Remote (EMEA, United States) • Senior
Go
Python
Ruby
Databases
MySQL
PostgreSQL
DevOps
AWS
Azure
GCP
Kubernetes
Apply
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Myedspace

myedspace.com
We're on a mission to make a world-class education truly accessible to all. Expert teachers, unbeatable value — now helping US students get ahead.
myedspace.com • London • Education • EdTech Platforms
London • Education • EdTech Platforms
Verified live · 11 hours ago 2 months ago

Senior Full-Stack Engineer

$66k – $188k per year (Estimated) • Senior • Remote (EU, Europe) • Full-Time • Senior
Java
Node JS
PHP
TypeScript
JavaScript
Frontend
React.js
DevOps
AWS
CI/CD
Apply
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Hugging Face

huggingface.co
Hugging Face is an American company, founded in 2016 and headquartered in New York, that runs the largest open platform for sharing machine learning models, datasets and demonstration applications. Its Hub hosts more than a million public models and is often described as the GitHub of machine learning, while its open-source libraries such as Transformers, Diffusers and Datasets are standard tools in research and production pipelines. The company earns revenue from paid Hub features, managed inference endpoints and enterprise deployments, and works with cloud and chip vendors to make open models easy to run anywhere.
huggingface.co • HQ: New York, United States • Software • MLOps • Machine Learning • LLM & Generative AI • Artificial Intelligence • 201-500 employees • Est. 2016
HQ: New York, United States • Software • MLOps • Machine Learning • LLM & Generative AI • Artificial Intelligence • 201-500 employees • Est. 2016
Verified live · 1 day ago 2 months ago

Low-level Senior Software Engineer, Xet Storage - EMEA Remote

$53k – $102k per year (Estimated) • Senior • Paris • Remote (EMEA) • Master's Degree • Full-Time • Senior
C++
Go
Python
Rust
TypeScript
AI/ML
Gradio
Hugging Face
DevOps
GitHub
AWS
Azure
GCP
Kubernetes
Apply
Report

Boldin

boldin.com
Boldin (formerly known as NewRetirement) is a financial technology company providing a collaborative financial planning and retirement modeling SaaS platform. Designed to bridge the gap between simple retirement calculators and traditional wealth management firms, the software delivers comprehensive accumulation and decumulation scenario planning for individual investors. Its proprietary modeling engine enables users to run Monte Carlo simulations, aggregate net worth data, optimize tax and Roth conversion strategies, analyze Social Security timing, and forecast healthcare and real estate costs.
boldin.com • Personal Finance • Wealth Management • Financial Services
Personal Finance • Wealth Management • Financial Services
Verified live · 7 hours ago 2 months ago

Full Stack Engineer

$67k – $191k per year (Estimated) • Middle • 4+ years exp • Remote • Full-Time • Middle
Ruby
TypeScript
JavaScript
Ruby
Ruby on Rails
Sidekiq
Databases
PostgreSQL
Frontend
React.js
Material UI
Redux
SWR
Yarn
DevOps
AWS
Marketing
ActiveCampaign
Apply
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I Am Here

iamheretribe.com
I Am Here is part of the Pulse Learning Group and provides evidence-based mental health and wellbeing solutions aimed at improving employee health, productivity, and engagement. As the partner of choice for businesses seeking to create safe and productive teams, I Am Here delivers solutions that are easy to use, measurable, and effective. The program encourages the use of Employee Assistance Programs and helps cultivate mentally healthy workplaces through compassionate connections and conversations.
iamheretribe.com • Toronto • Wellness Programs • Health Care • Mental Health
Toronto • Wellness Programs • Health Care • Mental Health
$68k – $191k per year (Estimated) • Middle • 3+ years exp • Remote (EMEA, United States, Canada) • Bachelor's Degree • Contractor • Middle
C#
C++
Go
Java
Python
Rust
SQL
TypeScript
AI/ML
AI Agents
DevOps
AWS
CI/CD
CloudFormation
Docker
Kubernetes
Terraform
Apply
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OP Labs

oplabs.co
OP Labs PBC is a software development company that contributes to the Optimism protocol, a layer two blockchain solution designed to scale the Ethereum network. The organization focuses on technology that enables faster and more scalable smart contract transactions while supporting mechanisms for funding public goods.
oplabs.co • New York • Cryptocurrencies • Blockchain & Crypto
New York • Cryptocurrencies • Blockchain & Crypto
Verified live · 1 day ago 2 months ago

Senior Software Engineer, Protocol (Rust)

$100k – $243k per year (Estimated) • Senior • Remote • Full-Time • Senior
Rust
Solidity
Web3
Account Abstraction
Ethereum
Layer 2
OP Stack
Optimism
Smart Contracts
Uniswap
Apply
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Zencoder

zencoder.ai
About us We are changing the way developers work Zencoder started with a question: what if software could do the repetitive work it's only been tracking? We're a team of 70+ engineers, researchers, and builders trying to answer it.
zencoder.ai • AI Agents • Artificial Intelligence
AI Agents • Artificial Intelligence
Open 109 daysVerified live · 1 day ago 4 months ago

Staff Software Engineer

$117k – $243k per year (Estimated) • Equity • Staff+ • 10+ years exp • Remote (Europe) • Staff
JavaScript
Kotlin
AI/ML
AI Agents
DevOps
AWS
CI/CD
GCP
Shift-Left
Cybersecurity
Shift-Left Security
Apply
Open 292 daysVerified live · 1 day ago 10 months ago

Senior Software Engineer

$69k – $195k per year (Estimated) • Equity • Senior • 10+ years exp • Remote (Europe) • Senior
Java
Kotlin
TypeScript
AI/ML
AI Agents
Apply
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Enode

enode.com
Enode's APIs enable you to instantly connect users' energy devices - including EVs, solar inverters, home batteries and thermostats - to your app. You can surface data, and then take action with it. Our out-of-the-box algorithms allow you to contr...
enode.com • Oslo • Hardware • Internet of Things • Energy & Utilities
Oslo • Hardware • Internet of Things • Energy & Utilities
Verified live · 10 hours ago 2 months ago

Senior Software Engineer (Home Energy)

$68k – $192k per year (Estimated) • Senior • Remote (Europe) • Full-Time • Senior
TypeScript
Databases
PostgreSQL
TimescaleDB
DevOps
AWS
Apply
Verified live · 10 hours ago 2 months ago

Software Engineer (Connect Platform)

Remote (Europe) • Full-Time
JavaScript
TypeScript
Databases
PostgreSQL
Frontend
React.js
DevOps
CI/CD
Platform Engineering
AWS
CloudFormation
Docker
Apply
Verified live · 10 hours ago 2 months ago

Senior Software Engineer (Connect Platform)

$69k – $195k per year (Estimated) • Senior • Remote (Europe) • Full-Time • Senior
TypeScript
Databases
PostgreSQL
DevOps
CI/CD
Platform Engineering
AWS
CloudFormation
Docker
Apply
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Louis Dreyfus Company (LDC) is a global merchant and processor of agricultural goods headquartered in Rotterdam, Netherlands. Founded in 1851 in France by Léopold Louis-Dreyfus, the company is one of the world's leading agricultural supply chain enterprises (forming part of the "ABCD" quartet of grain traders alongside Archer-Daniels-Midland, Bunge, and Cargill). LDC originates, processes, and transports massive volumes of agricultural commodities - including grains, oilseeds, cotton, coffee, rice, sugar, and vegetable oils - connecting producers to global food, feed, and fiber manufacturers.
ldc.com • HQ: Rotterdam, Netherlands • Transportation & Logistics • Supply Chain • 5000+ employees
HQ: Rotterdam, Netherlands • Transportation & Logistics • Supply Chain • 5000+ employees
Sofia • Remote (Bulgaria) • Visa sponsorship • Bachelor's Degree • Internship
C#
Java
SQL
Python
C#
.NET
Databases
Oracle
Analytics
Power BI
Tableau
ETL/ELT
Apply
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Backend Developer Jobs in Sofia
Frequently asked questions
How many Backend Developer jobs in Sofia are available on Alion?
There are currently 43 active listings from 23 hiring companies on Alion, refreshed daily.
What salary do Backend Developer jobs in Sofia pay?
The average salary is around $55,000 per year based on the current listings.
Are remote options available for Backend Developer jobs in Sofia?
Yes, many of these roles offer remote or hybrid work, and you can filter listings by remote, relocation and visa sponsorship.
How do I apply for Backend Developer jobs in Sofia?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.