Senior Backend Developer Jobs

Senior Backend Developer jobs hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $188,902/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

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

FLOWX.AI

flowx.ai
FlowX.AI is an AI-native agentic platform designed for building and deploying AI Agents and mission-critical AI-enabled systems in highly regulated industries.
flowx.ai • New York • London • Bucharest • Budapest • Gdańsk • Business Process Automation (BPA) • Artificial Intelligence • AI Agents
New York • London • Bucharest • Budapest • Gdańsk • Business Process Automation (BPA) • Artificial Intelligence • AI Agents
$32k – $40k per year (Estimated) • Equity • Senior • 5+ years expIn office (Bucharest, Romania) • Full-Time • Senior
Python
Java
Python
Django
FastAPI
Databases
Apache Kafka
AI/ML
AI Agents
LangChain
LangGraph
PyTorch
TensorFlow
DevOps
AWS Lambda
gRPC
AWS
Git
Cybersecurity
Zero Trust
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Nawy Real Estate

nawy.com
Nawy is the Best Real Estate Brokerage company in Egypt. Browse properties for sale or rent in Premium compounds in New Cairo, October, North Coast, etc, with fractional investment & mortgage solutions. Find Your Home Now!
nawy.com • HQ: Cairo, Egypt • Real Estate Investment • Real Estate • Real Estate Brokerage • Est. 2016
HQ: Cairo, Egypt • Real Estate Investment • Real Estate • Real Estate Brokerage • Est. 2016
Verified live · 1 day ago 2 months ago

Senior Full Stack Developer

Senior • 3+ years expIn office • Full-Time • Senior
JavaScript
Node JS
Ruby
Databases
MySQL
PostgreSQL
Frontend
React.js
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SSC HR Solutions

sschrsolutions.com
SSC HR Solutions is a human resources consulting and Business Process Outsourcing (BPO) provider operating across the MENA and GCC regions. The company specializes in end-to-end HR services, including talent acquisition, staff augmentation, payroll administration, and labor law compliance.
sschrsolutions.com • HQ: Cairo, Egypt • Information Technology • Professional Services • Human Resources
HQ: Cairo, Egypt • Information Technology • Professional Services • Human Resources
Verified live · 7 hours ago 2 months ago

Senior Java Developer (Spring Boot)

Senior • Remote (Egypt) • Senior • Arabic
Java
TypeScript
JavaScript
Kotlin
Java
Gradle
Hibernate
Maven
Spring Boot
Spring Data JPA
Spring MVC
Spring Security
Kotlin
Mockito
Databases
MySQL
PostgreSQL
Apache Kafka
RabbitMQ
Redis
Frontend
Angular
React.js
Mobile
JUnit
DevOps
AWS
Azure
CI/CD
Docker
GCP
Git
Rest API
Apply
Open 105 daysVerified live · 7 hours ago 4 months ago

Senior Backend Engineer .Net

Senior • In office (Cairo, Egypt) • Senior
C#
SQL
JavaScript
C#
ASP.NET Core
Entity Framework Core
AutoMapper
FluentValidation
Moq
Refit
Serilog
Frontend
React.js
Mobile
Clean Architecture
Agora
Firebase
DevOps
AWS
CI/CD
GitHub Actions
Amazon ECS
Amazon S3
GitHub
Docker
Git
QA
Swagger
Apply
Open 315 daysVerified live · 7 hours ago 11 months ago

Senior Backend Java Engineer

Senior • In office (Cairo, Egypt) • Senior
Go
Java
Kotlin
Node JS
Python
JavaScript
Java
Gradle
Maven
Databases
Cassandra
CouchDB
ElasticSearch
MariaDB
MySQL
PostgreSQL
DevOps
Azure
Azure DevOps
CI/CD
Docker
Jenkins
Kubernetes
Apply
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Rakuten Group

rakuten.com
Rakuten Group is a Japanese internet conglomerate founded in 1997 by Hiroshi Mikitani, built around the Rakuten Ichiba marketplace where merchants run their own branded storefronts rather than plain product listings. Over three decades it has assembled one of the widest membership ecosystems in Japan, spanning e-commerce, credit cards, banking, securities, insurance, travel and the Viber messaging app, all linked by a shared loyalty points programme. Since 2020 the group has invested heavily in Rakuten Mobile, building Japan's fourth mobile network on a fully virtualised architecture that it also licenses to operators abroad.
rakuten.com • HQ: Tokyo, Japan • Loyalty Programs • Credit Cards • Telecommunications • Financial Services • Commerce • Marketplaces • E-commerce Platforms • 5000+ employees • Est. 1997
HQ: Tokyo, Japan • Loyalty Programs • Credit Cards • Telecommunications • Financial Services • Commerce • Marketplaces • E-commerce Platforms • 5000+ employees • Est. 1997
Verified live · 2 days ago 2 months ago

Sr. Software Engineer

$77k – $113k per year • Equity • Senior • 5+ years expIn office (Toronto, Canada) • Bachelor's Degree • Full-Time • Senior
Node JS
TypeScript
Java
Go
JavaScript
Python
Java
Quarkus
Databases
Apache Kafka
AI/ML
Claude
Copilot
Cursor
Frontend
Angular
React.js
Vue.js
DevOps
Amazon EC2
AWS
AWS Lambda
Azure
CI/CD
Datadog
GCP
GitHub Actions
Jenkins
Amazon S3
API Gateway
GitHub
Apply
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Sprinter Health

sprinterhealth.com
Sprinter Health combines technology and a full-stack medical practice to reimagine care at home. We partner with healthcare organizations to drive engagement with preventive care by providing convenient in-home visits that close care gaps and equip providers with actionable data to support better health.
sprinterhealth.com • HQ: Menlo Park, United States • Digital Health • Health Care • Home Healthcare
HQ: Menlo Park, United States • Digital Health • Health Care • Home Healthcare
Top 25% payVerified live · 8 min ago 2 months ago

AI Automation Team - Software Engineer (Senior)

$185k – $230k per year • Senior • 5+ years expRemote/Hybrid (San Francisco, United States) • Full-Time • Senior
JavaScript
Node JS
TypeScript
Databases
DynamoDB
Frontend
GraphQL
React.js
Mobile
React Native
DevOps
AWS
AWS Lambda
CloudFormation
Cybersecurity
HIPAA
Apply
Top 25% payVerified live · 8 min ago 3 months ago

Logistics Research Team - Software Engineer (Senior)

$195k – $225k per year • Senior • 5+ years expRemote/Hybrid (San Francisco, United States) • Full-Time • Senior
JavaScript
Python
TypeScript
Node JS
Databases
DynamoDB
ElasticSearch
Google BigQuery
OpenSearch
Frontend
GraphQL
DevOps
AWS
AWS Lambda
CloudFormation
Kibana
Apply
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Pearly

pearly.co
Pearly puts dental patient billing, A/R collection, payment plans, and membership plans on autopilot. Trusted by thousands of dental practices and DSOs.
pearly.co • Atlanta • New York • Santa Barbara • Financial Services • Health Care • Dental Care
Atlanta • New York • Santa Barbara • Financial Services • Health Care • Dental Care
Top 25% pay 2 months ago

Senior Software Engineer - Full Stack

$160k – $230k per year • Senior • 5+ years expNew YorkAtlantaSanta Barbara • Remote (United States) • Full-Time • Senior
SQL
TypeScript
JavaScript
Databases
PostgreSQL
AI/ML
AI Agents
Claude
Claude Code
Cursor
LLM
Model Context Protocol
Frontend
GraphQL
React.js
DevOps
AWS
Azure
CI/CD
Docker
GCP
GitHub Actions
Terraform
GitHub
Analytics
ETL/ELT
Apply
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Personaai

personaai.com
Persona AI is a technology company headquartered in Houston, Texas, that specializes in developing AI-powered industrial humanoid robotics. The organization creates modular, heavy-duty robots engineered to perform skilled physical tasks such as welding, maintenance, and fabrication in demanding operational environments like shipyards, construction sites, and energy infrastructure. By automating complex and hazardous manual work, the company aims to address labor shortages, increase operational efficiency, and improve worker safety across heavy industries.
personaai.com • HQ: San Francisco, United States • Information Technology • Artificial Intelligence
HQ: San Francisco, United States • Information Technology • Artificial Intelligence
$190k – $240k per year • Senior • 5+ years expRemote/Hybrid (San Francisco, United States) • Bachelor's Degree • Full-Time • Senior
Java
Python
Ruby
Ruby
Ruby on Rails
Databases
ElasticSearch
MySQL
Redis
AI/ML
OpenAI
DevOps
GCP
Kubernetes
Apply
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FDEverything

fdeverything.com
FDEverything is a niche technology publication and newsletter platform focused on Forward Deployed Engineering (FDE) and technical GTM functions. Authored by Sanjay Saraf, the publication delivers biweekly operational roundups, career analysis, organizational frameworks, and strategic industry breakdowns covering how software companies deploy technical teams at the customer interface.
fdeverything.com • New York • Washington • Los Angeles • London • Austin
New York • Washington • Los Angeles • London • Austin
Verified live · 2 days ago 2 months ago

Software Engineer, AI Platform

$152k – $274k per year (Estimated) • Senior • 5+ years expIn office (New York, United States) • Full-Time • Senior
Time Series Forecasting
LLM
AI Agents
Apply
Open 185 daysTop 25% pay 7 months ago

Software Engineer, Mission Dev - U.S. Government

$150k – $215k per year • Senior • 5+ years expIn office (New York, United States) • Full-Time • Senior
Apply
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Causaly

causaly.com
Causaly is the fastest way to find evidence, explore hidden connections and make new predictions in biomedical science. The company provides AI-powered software for reading medical information.
causaly.com • New York • London • Athens • AI Agents • Biotechnology • Artificial Intelligence
New York • London • Athens • AI Agents • Biotechnology • Artificial Intelligence
Verified live · 2 days ago 2 months ago

Senior Software Engineer - Agentic Workflows

$94k – $170k per year (Estimated) • Senior • Remote/Hybrid (London, United Kingdom) • Full-Time • Senior
JavaScript
Node JS
TypeScript
Python
Python
FastAPI
Databases
PostgreSQL
ElasticSearch
Redis
AI/ML
LLM
AI Agents
Knowledge Graph
LLM Guardrails
Structured Outputs
Fine-tuning
LangChain
Langfuse
LangGraph
OpenAI
Frontend
GraphQL
React.js
Zod
DevOps
GCP
Azure
Docker
Git
ArgoCD
Datadog
GitHub Actions
Kubernetes
OpenTelemetry
Terraform
Vector
GitHub
Apply
Report

Rebar

rebar.com
rebar.com • New York • Manufacturing • Metals & Metallurgy
New York • Manufacturing • Metals & Metallurgy
$141k – $254k per year (Estimated) • Equity • Senior • 5+ years expIn office (New York, United States) • Full-Time • Senior
Amazon Aurora
Cassandra
DynamoDB
PostgreSQL
AI/ML
AI Agents
Apply
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Voodoo

voodoo.io
Voodoo is a global technology company that develops and publishes mobile games and consumer apps. Founded in Paris in 2013, it became known for popular hyper-casual games and has expanded into casual, hybrid-casual, and other app categories. Its products have reached more than 150 million monthly active users and generated billions of downloads worldwide.
voodoo.io • HQ: Paris, France • Game Development • Gaming • Mobile Games • 51-200 employees
HQ: Paris, France • Game Development • Gaming • Mobile Games • 51-200 employees
Verified live · 2 hours ago 2 months ago

Senior Backend Engineer (Golang) - Draft Showdown

$58k – $116k per year (Estimated) • Senior • 5+ years expRemote/Hybrid (Paris, France) • Relocation • Full-Time • Senior
Go
SQL
Mobile
State Management
Game Dev
Unity
Apply
Verified live · 2 hours ago 3 months ago

Senior Backend Engineer (Golang) - Castle Busters

$52k – $101k per year (Estimated) • Senior • 7+ years expParisBerlinAmsterdamWarsawBarcelona • Remote (Germany, France, Italy, Netherlands, Poland) • Full-Time • Senior
Go
SQL
Mobile
State Management
Game Dev
Unity
Apply
Verified live · 2 hours ago 4 months ago

Senior Backend Engineer (Python) - Blitz

$57k – $113k per year (Estimated) • Senior • 6+ years expRemote/Hybrid (Paris, France) • Full-Time • Senior
Python
JavaScript
Databases
DynamoDB
PostgreSQL
Redis
Frontend
Bootstrap
JQuery
Vue.js
DevOps
AWS
GCP
Amazon EKS
ArgoCD
AWS Lambda
CI/CD
Docker
Grafana
Kubernetes
Prometheus
Terraform
Amazon S3
Management
Slack
Trello
Apply
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Hyperproof

hyperproof.io
Hyperproof's GRC platform turns GRC into a growth engine. Eliminate duplicate work and see 66% reduction in duplicative controls.
hyperproof.io • Portland • Panama • Software • Cybersecurity • Security Compliance
Portland • Panama • Software • Cybersecurity • Security Compliance
Verified live · 2 days ago 2 months ago

Senior Full Stack Engineer - Contract-to-Hire

Senior • 5+ years expPanama • Remote (Argentina, Peru) • Bachelor's Degree • Contractor • Senior • English: C1
C#
Go
Java
TypeScript
JavaScript
Frontend
React.js
DevOps
Azure
Rest API
Management
Slack
Apply
Report
Dun & Bradstreet is a global provider of business decisioning data and analytics headquartered in Jacksonville, Florida, and founded in 1841. The company offers a wide range of solutions including business credit reports, risk management tools, supply chain visibility, and sales and marketing data anchored by its proprietary D-U-N-S Numbering system. It operates globally, maintaining a commercial database of hundreds of millions of business records to serve clients in the public sector, finance, and enterprise markets.
dnb.com • HQ: Jacksonville, United States • Cybersecurity • Lead Generation • Sales & Marketing • Data Governance • Risk Management • Financial Services • Business Intelligence • Data & Analytics • Est. 1841
HQ: Jacksonville, United States • Cybersecurity • Lead Generation • Sales & Marketing • Data Governance • Risk Management • Financial Services • Business Intelligence • Data & Analytics • Est. 1841
Verified live · 3 min ago 2 months ago

Senior Software Engineer (R-19525)

$77k – $167k per year (Estimated) • Senior • 6+ years expRemote/Hybrid (Dublin, Ireland) • Bachelor's Degree • Full-Time • Senior
Java
DevOps
AWS
GCP
Apply
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Skyflow

skyflow.com
Skyflow provides a data privacy vault that isolates sensitive records and exposes them through tokenised, policy-controlled interfaces. Founded in 2019 in California by former Salesforce executives, it added controls for sending data to large language models safely. Fintech and healthcare companies use it to limit their compliance surface.
skyflow.com • HQ: Palo Alto, United States • Cybersecurity • Data & Analytics • Artificial Intelligence • Est. 2019
HQ: Palo Alto, United States • Cybersecurity • Data & Analytics • Artificial Intelligence • Est. 2019
Verified live · 9 hours ago 2 months ago

Senior Software Engineer

$23k – $62k per year (Estimated) • Senior • 5+ years expRemote/Hybrid • Full-Time • Senior
C++
Go
Java
Python
Databases
Snowflake
Mobile
Twilio
DevOps
CI/CD
Management
Slack
Marketing
Zendesk
Apply
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Faktion

faktion.com
Faktion is a Belgian artificial intelligence company founded in 2017 and based in Antwerp. It develops computer vision, language and decision systems for industrial and enterprise customers. The company also builds its own products for document understanding and quality inspection.
faktion.com • HQ: Antwerp, Belgium • Government • Software • Artificial Intelligence • Est. 2017
HQ: Antwerp, Belgium • Government • Software • Artificial Intelligence • Est. 2017
Verified live · 1 day ago 2 months ago

Senior Java Engineer

Senior • 8+ years expIn office • Senior • Dutch: C2 • English: C2
Java
Kotlin
Java
Apache Tomcat
Gradle
Hibernate
Maven
Spring Boot
Spring MVC
Spring Security
Kotlin
Mockito
AI/ML
Copilot
Mobile
JUnit
DevOps
AWS
Azure
Azure DevOps
CI/CD
Docker
GitHub Actions
Kubernetes
GitHub
QA
Postman
Apply
Open 480 daysVerified live · 1 day ago 1 year ago

Senior Full-Stack Engineer

Senior • 5+ years expIn office • Senior • Dutch: C2 • English: C2
Node JS
TypeScript
JavaScript
SQL
Node JS
Nest.JS
Databases
Azure Cosmos DB
Azure SQL Database
MySQL
PostgreSQL
Frontend
React.js
Radix UI
Apollo Client
GraphQL
React Query
shadcn/ui
Tailwind CSS
Turborepo
Mobile
React Native
DevOps
AWS
Azure
Azure AKS
Azure DevOps
CI/CD
Docker
GitHub Actions
Kubernetes
Rest API
GitHub
Robotics
Apollo
QA
Cypress
Jest
Apply
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Toloka AI

toloka.ai
Toloka is a data company founded in 2014 and headquartered in Amsterdam that supplies human-generated training, fine-tuning and evaluation data for artificial intelligence systems. It began as a large-scale crowdsourcing platform and has repositioned around expert work, combining domain specialists, machine learning tooling and quality control pipelines to produce reasoning traces, preference rankings and agentic task data. Operating within the Nebius group and backed by Bezos Expeditions since 2025, the company serves frontier model laboratories and enterprises building their own systems.
toloka.ai • HQ: Amsterdam, Netherlands • Machine Learning • Data & Analytics • Data Collection • LLM & Generative AI • Artificial Intelligence • 51-200 employees • Est. 2014
HQ: Amsterdam, Netherlands • Machine Learning • Data & Analytics • Data Collection • LLM & Generative AI • Artificial Intelligence • 51-200 employees • Est. 2014
Verified live · 8 hours ago 2 months ago

Freelance Senior Software Engineer | AI Evaluation

Senior • 8+ years exp • Remote (EU, United States, United Kingdom, Serbia) • Freelance • Senior
Python
JavaScript
TypeScript
Python
FastAPI
Databases
Apache Kafka
PostgreSQL
Redis
AI/ML
AI Agents
Claude
Anthropic
Model Context Protocol
OpenAI Codex
Frontend
React.js
DevOps
Docker
Apply
Report

Alan

alan.com
Alan is a European digital health insurance and corporate wellness platform (often called a "health super-app") headquartered in Paris, France. Founded in 2016, it is the first independent health insurance company licensed in France in over 30 years and serves clients across France, Spain, Belgium, and Canada.
alan.com • HQ: Paris, France • Mental Health • Wellness Programs • Artificial Intelligence • Digital Health • Financial Services • Insurance • 501-1000 employees
HQ: Paris, France • Mental Health • Wellness Programs • Artificial Intelligence • Digital Health • Financial Services • Insurance • 501-1000 employees
Verified live · 3 hours ago 2 months ago

Fullstack Software Engineer (x/f/m) - Care Expert Copilot

Senior • 5+ years expIn office (Toronto, Canada) • Full-Time • Senior
JavaScript
Python
Python
Flask
Databases
PostgreSQL
AI/ML
AI Agents
Frontend
React.js
Apply
Verified live · 3 hours ago 4 months ago

Fullstack Software Engineer (x/f/m) - Claims Management

Senior • 5+ years expIn office • Full-Time • Senior
C#
Java
Kotlin
Python
TypeScript
Python
Flask
Databases
PostgreSQL
Apply
Verified live · 3 hours ago 7 months ago

Fullstack Software Engineer (x/f/m) - Global Architecture

Equity • Senior • 5+ years expIn office • Full-Time • Senior • French
C#
JavaScript
Python
Python
Flask
Databases
PostgreSQL
Frontend
React.js
Mobile
React Native
Apply
Report

Scalera AG

ra-scale.ai
RA Scale AG is an ETH Zurich spin off based in the Zurich region that operates the ra-scale.ai platform under the Scalera brand. The company develops an artificial intelligence software suite for construction tenders to help mid sized construction companies optimize business processes and improve return on investment.
ra-scale.ai • Zurich • Artificial Intelligence • Real Estate • PropTech
Zurich • Artificial Intelligence • Real Estate • PropTech
$123k – $147k per year • Senior • 4+ years expZurich • Remote (Switzerland) • Full-Time • Senior
Python
Python
Django
FastAPI
DevOps
CI/CD
Apply
$74k – $104k per year • Senior • 4+ years expZurich • Remote (EU, EEA) • Full-Time • Senior
Python
Python
Django
FastAPI
DevOps
CI/CD
Apply
Open 140 daysVerified live · 1 day ago 5 months ago

Senior Backend Engineer (Python) (Remote)

$99k – $185k per year (Estimated) • Senior • 4+ years expZurich • Remote (EU, EEA) • Full-Time • Senior
Python
Python
Django
FastAPI
Databases
Google BigQuery
AI/ML
Claude
Copilot
Cursor
DevOps
CI/CD
GCP
Google Cloud Run
Apply
Report

MSPilot

mspilot.io
MSPilot is the AI control plane for the MSP channel. Build, govern, and monetize AI agents across every SMB you serve — turning AI into every MSP's next recurring revenue line.
mspilot.io • Lviv • Managed IT Services • Artificial Intelligence • AI Agents
Lviv • Managed IT Services • Artificial Intelligence • AI Agents
$60k – $100k per year • Senior • 5+ years expRemote/Hybrid (Lviv, Ukraine) • Full-Time • Senior
Python
Rust
TypeScript
JavaScript
Python
Django
Databases
MySQL
pgvector
Pinecone
PostgreSQL
Qdrant
Weaviate
AI/ML
AI Agents
Claude
Claude Code
Cursor
Embeddings
Gemini
LLM
Model Context Protocol
Anthropic
OpenAI
OpenAI Codex
Frontend
Next.js
React.js
DevOps
AWS
Azure
GCP
Nginx
Platform Engineering
Vector
Cybersecurity
Microsoft Entra ID
Apply
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Senior Backend Developer Jobs
Frequently asked questions
How many Senior Backend Developer jobs are available on Alion?
There are currently 10276 active listings from 2892 hiring companies on Alion, refreshed daily.
What salary do Senior Backend Developer jobs pay?
The average salary is around $188,902 per year based on the current listings.
Are remote options available for Senior Backend Developer jobs?
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 Senior Backend Developer jobs?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.