Rest API Jobs - Remote & On-site

Rest API jobs at vetted startups and product companies on Alion. Search backend, API design and integration roles; many positions support remote work and salary ranges are shown where available. Listings updated daily. 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

Stetska Consulting

stetskaconsulting.com
Stetska Consulting is a consulting firm that advises organizations on strategic management and organizational development. It provides services such as business analysis, process optimization and support for change and transformation initiatives.
stetskaconsulting.com • Tbilisi • Professional Services • Business Development
Tbilisi • Professional Services • Business Development
Verified live · 4 hours ago 2 months ago

Web automation BAS Developer/ZennoPoster

$12k – $24k per year (net) • Tbilisi • Remote (Georgia) • Russian: C1
C#
JavaScript
Python
DevOps
Rest API
Docker
Apply
Report

Internetum Polska

internetum.com
Unlock new revenue streams with your own IoT solutions in a subscription model. Build it with a trusted IoT software development partner
internetum.com • Gdynia • Software • Information Technology • Internet of Things
Gdynia • Software • Information Technology • Internet of Things
$38k – $51k per year • In office (Gdynia, Poland) • Internship • Polish: C1
JavaScript
SQL
TypeScript
AI/ML
Claude
DevOps
Azure
Azure DevOps
CI/CD
Git
Octopus Deploy
Rest API
QA
Playwright
Postman
Swagger
Apply
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R3

r3.com
At R3, we are building the on-ramp for the next trillion dollars of assets to move on-chain, bridging the worlds of traditional finance (TradFi) and decentralized finance (DeFi). We are launching institutional-grade RWA yield vaults, fully composable and integrated into Solana DeFi. We are also the producers of Corda, the enterprise-grade distributed ledger platform trusted by regulated financial institutions globally, built for the constraints of regulated finance: permissioned networks, deterministic consensus, and privacy by design.
r3.com • San Francisco • Blockchain & Crypto • DeFi • Blockchain Infrastructure
San Francisco • Blockchain & Crypto • DeFi • Blockchain Infrastructure
2 months ago

Software Engineer

$143k – $291k per year (Estimated)In office (San Francisco, United States)
Java
Kotlin
SQL
Java
Hibernate
Spring Boot
DevOps
Git
Rest API
Azure
CI/CD
Docker
Kubernetes
Web3
Corda
DeFi
Solana
Apply
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Flying Bisons

flyingbisons.com
Flying Bisons is a strategic design and implementation firm that provides digital consulting services focused on creating and improving online products and user experiences. The company offers expertise in areas such as digital strategy, research, design, and end to end delivery for organizations undergoing digital transformation.
flyingbisons.com • Warsaw • Professional Services • Design & Creative • UI/UX Design
Warsaw • Professional Services • Design & Creative • UI/UX Design
$38k – $85k per year (Estimated) • Middle • 3+ years expWarsaw • Remote (Europe) • Freelance • Middle
JavaScript
Kotlin
Objective-C
TypeScript
Frontend
React.js
React Hook Form
React Query
Recoil
Redux
Storybook
Zustand
Mobile
React Native
Expo
State Management
DevOps
Git
Rest API
Apply
Open 453 daysVerified live · 2 days ago 1 year ago

Freelance React Native Developer

$38k – $85k per year (Estimated) • Middle • 3+ years exp • Remote (Europe) • Freelance • Middle
JavaScript
Kotlin
Objective-C
TypeScript
Frontend
React.js
React Hook Form
React Query
Recoil
Redux
Storybook
Zustand
Mobile
React Native
Expo
State Management
DevOps
Git
Rest API
Apply
Report

Blockchain.ai

blockchain.ai
Blockchain.ai is a financial technology company based in San Francisco, California, and was founded in 2023. The company provides a real-time cryptocurrency trading and blockchain analytics platform that offers token tracking, wallet monitoring, liquidity pool data, and AI-powered market intelligence. It operates globally, supporting decentralized exchange activity and one-click swaps across major networks including Ethereum, Solana, and Polygon for active crypto investors and researchers.
blockchain.ai • HQ: San Francisco, United States • DeFi • Financial AI • Artificial Intelligence • Blockchain Analytics • Crypto Exchanges • Blockchain & Crypto • Est. 2023
HQ: San Francisco, United States • DeFi • Financial AI • Artificial Intelligence • Blockchain Analytics • Crypto Exchanges • Blockchain & Crypto • Est. 2023
Verified live · 2 hours ago 2 months ago

Back-End Engineer, Trading

$81k – $182k per year (Estimated)Remote/Hybrid (London, United Kingdom) • PhD • Full-Time
Kotlin
Python
SQL
Databases
NATS
DevOps
Rest API
WebSockets
AWS
Docker
Kubernetes
Cybersecurity
GDPR
Apply
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Urban Harvest

uharvest.in
Urban Harvest is a fresh food and processing company that offers pre-cut fruits, vegetables, and ready-to-cook ingredients for households and businesses, offering easy food solutions sourced directly from farmers.
uharvest.in • Noida • Delhi • Quality Assurance • Est. 2019
Noida • Delhi • Quality Assurance • Est. 2019
2 months ago

Frontend Developer

$7.5k – $45k per year (Estimated) • Middle • 3+ years expIn office (Noida, India) • Bachelor's Degree • Middle
JavaScript
TypeScript
Frontend
Next.js
React.js
Redux
Redux Toolkit
Mobile
State Management
DevOps
Rest API
CI/CD
Git
Apply
2 months ago

Software Engineer - I

$14k – $39k per year (Estimated) • Junior • 3+ years expIn office (Noida, India) • Middle
C#
Go
C#
.NET
Databases
MySQL
PostgreSQL
Mobile
Clean Architecture
DevOps
CI/CD
Git
Rest API
Docker
Kubernetes
Apply
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VusionGroup

vusiongroup.com
Learn how VusionGroup digitalizes your physical store with sustainable technologies to improve business performance through retail IoT and analytics.
vusiongroup.com • HQ: Nanterre, France • Information Technology • Internet of Things • Commerce • Retail & Shop Systems
HQ: Nanterre, France • Information Technology • Internet of Things • Commerce • Retail & Shop Systems
Top 25% payVerified live · 1 hour ago 2 months ago

Technical Project Manager (Implementation)

$528k – $625k per year • Senior • 5+ years expRemote/Hybrid (Italy) • Full-Time • Principal • English: C1 • Italian: C1
JavaScript
Python
SQL
AI/ML
Computer Vision
DevOps
Azure
Rest API
Apply
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Parloa

parloa.com
Parloa is an artificial intelligence software company headquartered in Berlin, Germany, and founded in 2018. The company provides an AI agent management platform that enables enterprises to automate contact center operations through generative AI, voice automation, and natural language processing. It serves global brands in sectors such as insurance, retail, and financial services, operating as an SAP-endorsed partner with offices in Europe and North America.
parloa.com • HQ: Berlin, Germany • Technical Support • Information Technology • Business Process Automation (BPA) • Software • Speech & Audio AI • LLM & Generative AI • Artificial Intelligence • Conversational AI • Est. 2018
HQ: Berlin, Germany • Technical Support • Information Technology • Business Process Automation (BPA) • Software • Speech & Audio AI • LLM & Generative AI • Artificial Intelligence • Conversational AI • Est. 2018
Verified live · 2 hours ago 2 months ago

Sr Agent Architect (UK)

$98k – $199k per year (Estimated) • Staff+ • 3+ years expLondon • Remote (United Kingdom) • Architect
AI Agents
Chain-of-Thought
Embeddings
Few-Shot Learning
LLM
Prompt Engineering
DevOps
Rest API
Cybersecurity
GDPR
ISO 27001
Analytics
A/B Testing
QA
Postman
Apply
Verified live · 2 hours ago 3 months ago

Sr Partner Agent Architect (Germany)

$98k – $199k per year (Estimated) • Staff+ • 4+ years expBerlin • Remote (Germany) • Architect • German
Apex
JavaScript
Node JS
TypeScript
Apex
MuleSoft
AI/ML
AI Agents
Embeddings
LLM
Prompt Engineering
LLM Guardrails
Function Calling
DevOps
Rest API
CI/CD
Git
Kubernetes
Cybersecurity
GDPR
ISO 27001
QA
Postman
Apply
Verified live · 2 hours ago 3 months ago

Sr Agent Architect (France)

$111k – $234k per year (Estimated) • Staff+ • 3+ years expIn office (Paris, France) • Architect • French: C1
AI Agents
Chain-of-Thought
Embeddings
Few-Shot Learning
LLM
Prompt Engineering
DevOps
Rest API
Cybersecurity
GDPR
ISO 27001
Analytics
A/B Testing
QA
Postman
Apply
Report

Mihup

mihup.com
Mihup is an information service organization that provides services related to a Voice technology platform for enterprises such as customer contact centers, Automotive & TV OEMs, etc.
mihup.com • Bengaluru • Conversational AI • Artificial Intelligence • Speech & Audio AI • Est. 2016
Bengaluru • Conversational AI • Artificial Intelligence • Speech & Audio AI • Est. 2016
2 months ago

Lead Engineer - LLM

$35k – $83k per year (Estimated) • Lead • In office (Bengaluru, India) • Staff
Python
Databases
Chroma
FAISS
Milvus
Pinecone
Weaviate
AI/ML
AutoGen
Claude
CrewAI
Gemini
LangChain
Llama
LlamaIndex
LLM
NLP
Prompt Engineering
RAG
AI Agents
Fine-tuning
DevOps
AWS
Azure
GCP
Rest API
CI/CD
Docker
Kubernetes
Apply
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MediBuddy

medibuddy.in
MediBuddy is India's largest on-demand, full-stack digital healthcare platform that helps patients access multiple healthcare services. It gives users 24/7 access to high-quality healthcare at their fingertips. MediBuddy helps its users consult specialist doctors, order medicines, and book lab tests from the comfort of their homes.
medibuddy.in • Indore • Bengaluru • Health Care • Est. 2013
Indore • Bengaluru • Health Care • Est. 2013
2 months ago

SDE 3 - Backend

$19k – $53k per year (Estimated) • Middle • 5+ years expIn office (Indore, India) • Senior
Go
JavaScript
Node JS
C#
Node JS
Express
C#
.NET
Databases
Amazon Redshift
MS SQL
MySQL
RabbitMQ
Redis
DevOps
AWS
Rest API
Amazon CloudWatch
Amazon ECS
Apply
Report

Ontic

ontic.co
Ontic is a corporate security software company headquartered in Austin, Texas, and founded in 2017. The company builds a protective intelligence platform where enterprise security teams collect and assess threats to executives, employees, and facilities, manage investigations, and track cases in one system. It serves Fortune 500 corporate security departments that previously ran this work through spreadsheets and disconnected tools.
ontic.co • HQ: Austin, United States • Law Enforcement • Incident Response • Security Services • Professional Services • Threat Intelligence • Government • Cybersecurity • Est. 2017
HQ: Austin, United States • Law Enforcement • Incident Response • Security Services • Professional Services • Threat Intelligence • Government • Cybersecurity • Est. 2017
Verified live · 2 hours ago 2 months ago

Senior Software Engineer - UI

$21k – $54k per year (Estimated) • Senior • 5+ years expIn office (Noida, India) • Full-Time • Senior
JavaScript
TypeScript
Frontend
React.js
DevOps
Rest API
CI/CD
QA
Jest
Vitest
Apply
Report

Kodanorth

kodanorth.com
Kodanorth is a business consulting and technology services company. It provides advisory and implementation services for organizations improving processes, adopting digital tools, and optimizing operations.
kodanorth.com • Zurich • Information Technology • IT Consulting • Professional Services
Zurich • Information Technology • IT Consulting • Professional Services
Top 25% pay 2 months ago

Senior Software Engineer

$147k – $196k per year • Senior • 8+ years expZurich • Remote (Switzerland) • Full-Time • Senior
JavaScript
Python
SQL
TypeScript
Java
Python
Django
FastAPI
Java
Spring Boot
Databases
MySQL
PostgreSQL
DevOps
Git
Rest API
AWS
CI/CD
Docker
Cybersecurity
HIPAA
Apply
Report

Amplitude

amplitude.com
Amplitude is a leading product analytics and digital optimization platform that helps businesses track and understand user behavior across their web and mobile applications. By providing real-time data visualization and event-based analytics, the software empowers product teams, marketers, and analysts to optimize user retention and drive conversion rates. Trusted by thousands of global enterprises, the company provides actionable insights that help teams build better digital products and make data-driven growth decisions.
amplitude.com • San Francisco • New York • London • Bengaluru • Sydney • Artificial Intelligence • Analytics Platforms • Data & Analytics • Product Analytics • 201-500 employees
San Francisco • New York • London • Bengaluru • Sydney • Artificial Intelligence • Analytics Platforms • Data & Analytics • Product Analytics • 201-500 employees
Top 25% payVerified live · 3 hours ago 2 months ago

Senior Software Engineer; Analytics Compute Platform team

$167k – $230k per year • Equity • Senior • In office (San Francisco, United States) • Senior
SQL
AI/ML
AI Agents
Time Series Forecasting
DevOps
Rest API
Marketing
Amplitude
Apply
Top 25% pay 2 months ago

Senior Software Engineer; Middleware

$167k – $230k per year • Equity • Senior • 7+ years expIn office (San Francisco, United States) • Relocation • Master's Degree • Senior
SQL
AI/ML
AI Agents
Time Series Forecasting
DevOps
Rest API
Marketing
Amplitude
Apply
Report

Future Publishing

futureplc.com
Founded in 1985, Future is a global multi-platform media company that provides magazines in fields such as video games, photography, technology, films, and home & knowledge. Future is located in the United Kingdom.
futureplc.com • New York • Cardiff • London • Bath • News Agencies • Media & Entertainment • Publishing • 1001-5000 employees • Est. 1996
New York • Cardiff • London • Bath • News Agencies • Media & Entertainment • Publishing • 1001-5000 employees • Est. 1996
Verified live · 5 min ago 2 months ago

Senior React Native Mobile App Developer

$74k – $88k per year • Senior • Remote (United Kingdom) • Senior
Go
TypeScript
Node JS
JavaScript
Node JS
Axios
Frontend
Redux
Redux Toolkit
Zustand
React.js
Mobile
Expo
Firebase
React Native
State Management
DevOps
CI/CD
Rest API
QA
Jest
Sentry
Apply
Report

Corpay

corpay.com
Corpay is a global business payments company that provides comprehensive solutions for managing corporate expenses, including fuel cards, lodging, and automated accounts payable systems. As a leader in spend management, the firm helps organizations of all sizes streamline financial workflows, control costs, and gain tighter visibility into their spending. Additionally, the company offers extensive cross-border payment and currency risk management services, enabling businesses to facilitate international transactions more efficiently and securely.
corpay.com • HQ: Atlanta, United States • Credit Cards • Financial Services • Payments • 5000+ employees • Est. 1986
HQ: Atlanta, United States • Credit Cards • Financial Services • Payments • 5000+ employees • Est. 1986
Verified live · 9 hours ago 2 months ago

Salesforce Developer

$11k – $41k per year (Estimated) • Middle • 4+ years expIn office (Chennai, India) • Full-Time • Middle
Apex
Apex
Aura Components
Lightning Web Components
Salesforce Flow
Copado
DevOps
Rest API
Bitbucket
CI/CD
Management
Jira
Marketing
Salesforce
Apply
Report

NetBox Labs

netboxlabs.com
NetBox Labs is an infrastructure management company that serves as the commercial steward of NetBox, a widely adopted open-source network system of record. The platform offers enterprise-grade SaaS and operational tools for IP address management (IPAM), network topology modeling, and real-time drift detection. By providing an authoritative source of truth with integrated automation and AI capabilities, it enables engineering teams to manage, scale, and govern complex network environments efficiently.
netboxlabs.com • Software • Information Technology • IT Infrastructure
Software • Information Technology • IT Infrastructure
Verified live · 1 day ago 2 months ago

Senior Customer Support Engineer

$82k – $93k per year • Senior • In office • Full-Time • Senior
Python
SQL
Python
Django
Databases
Apache Kafka
PostgreSQL
DevOps
AWS
Docker
Grafana
kubectl
Kubernetes
OpenTelemetry
Prometheus
Rest API
IoT
MQTT
Marketing
Salesforce
Apply
Report

Plaid

plaid.com
Plaid Inc. is a financial technology company headquartered in San Francisco, California, and founded in 2013. The company develops a data transfer network and application programming interfaces that allow consumers to securely connect their bank accounts to financial applications and services. It operates globally across North America and Europe, serving over 12,000 financial institutions and powering thousands of digital finance tools for millions of users.
plaid.com • HQ: San Francisco, United States • Data Integration • Data & Analytics • Identity Management • Cybersecurity • Banking • Payments • Financial Services • FinTech • Est. 2013
HQ: San Francisco, United States • Data Integration • Data & Analytics • Identity Management • Cybersecurity • Banking • Payments • Financial Services • FinTech • Est. 2013
Top 25% payVerified live · 3 hours ago 2 months ago

Technical Support Engineer

$74k – $110k per year • Junior • 2+ years expSan Francisco • Remote (United States) • Full-Time • Junior
JavaScript
Python
SQL
DevOps
Rest API
Management
Jira
Marketing
Zendesk
Apply
Report

Two Six Technologies

twosixtech.com
Two Six Technologies is a high-growth technology company that provides innovative cyber, data science, and mission-focused engineering solutions for the national security sector. The firm develops advanced software and hardware architectures - ranging from electronic warfare and cybersecurity systems to zero-trust networks and data analytics - specifically tailored for defense and intelligence agencies.
twosixtech.com • HQ: Arlington, United States • Cybersecurity • Artificial Intelligence • Military
HQ: Arlington, United States • Cybersecurity • Artificial Intelligence • Military
Verified live · 2 hours ago 2 months ago

Front End Developer

$112k – $236k per year (Estimated)In office (Arlington, United States) • Bachelor's Degree • Contractor
TypeScript
JavaScript
SQL
Frontend
Angular
React.js
Vue.js
DevOps
Rest API
WebSockets
Git
GitLab
QA
Cypress
Playwright
Selenium
Apply
Verified live · 2 hours ago 2 months ago

Automation Engineer

$67k – $136k per year (Estimated) • Junior • 2+ years expIn office (Aurora, United States) • Contractor • Junior
JavaScript
Node JS
Python
TypeScript
DevOps
CI/CD
Git
Rest API
AWS
Docker
Kubernetes
QA
Cypress
Gatling
Jest
JMeter
k6
Mocha
Pact
Playwright
Postman
Selenium
Supertest
Apply
Open 98 daysVerified live · 2 hours ago 4 months ago

Automated Tester

$62k – $123k per year (Estimated) • Junior • 1+ year expIn office (Aurora, United States) • Contractor • Junior
JavaScript
Node JS
Python
TypeScript
DevOps
CI/CD
Git
Rest API
AWS
Docker
Kubernetes
QA
Cypress
Gatling
Jest
JMeter
k6
Mocha
Pact
Playwright
Selenium
Apply
Report

Syngenta Group

syngenta.com
Syngenta is a global agricultural technology and agribusiness enterprise headquartered in Basel, Switzerland. Formed in 2000 through the merger of Novartis Agribusiness and AstraZeneca Agrochemicals, it now operates under the broader Syngenta Group as a subsidiary of Sinochem.
syngenta.com • HQ: Basel, Switzerland • Seeds • Farming & Agriculture • Crop Protection • 5000+ employees • Est. 2000
HQ: Basel, Switzerland • Seeds • Farming & Agriculture • Crop Protection • 5000+ employees • Est. 2000
Verified live · 1 hour ago 2 months ago

UI Engineer

$7.5k – $43k per year (Estimated) • Middle • 3+ years expIn office (Pune, India) • Bachelor's Degree • Full-Time • Senior
JavaScript
Node JS
Python
SQL
TypeScript
Java
Python
Django
Java
Spring Boot
Frontend
Angular
GraphQL
Next.js
React.js
styled-components
Tailwind CSS
Vue.js
DevOps
AWS
Azure
GCP
Git
Rest API
Design
Figma
Sketch
Apply
Report

Hitachi Solutions

hitachi-solutions.com
Hitachi Solutions is a global systems integrator and provider of business application and cloud transformation services. The company specializes in implementing tailored solutions built on the Microsoft platform, including Dynamics 365, Azure, and Data & AI tools. By combining deep industry expertise with advanced technology, it helps enterprises modernize their operations, optimize processes, and drive digital transformation.
hitachi-solutions.com • HQ: Irvine, United States • Sales & Marketing • Professional Services • Data & Analytics • Software • Enterprise Resource Planning (ERP) • Information Technology • Cloud Computing • IT Consulting • Est. 2002
HQ: Irvine, United States • Sales & Marketing • Professional Services • Data & Analytics • Software • Enterprise Resource Planning (ERP) • Information Technology • Cloud Computing • IT Consulting • Est. 2002
$66k – $166k per year (Estimated)In office (London, United Kingdom) • PhD • Full-Time
SQL
TypeScript
JavaScript
C#
C#
.NET
Blazor
Databases
Azure Cosmos DB
Azure SQL Database
AI/ML
Copilot
Frontend
Angular
DevOps
Azure
Azure AKS
CI/CD
Kubernetes
IAM
Azure DevOps
Bicep
Git
Rest API
Terraform
GitHub
Cybersecurity
Microsoft Defender
Microsoft Defender for Cloud
Microsoft Entra ID
Least Privilege
Apply
2 months ago

Software Engineer

$22k – $58k per year (Estimated) • Senior • 5+ years expIn office (Pune, India) • Full-Time • Senior
C#
JavaScript
PowerShell
Python
SQL
TypeScript
C#
ASP.NET Core
Databases
Azure Cosmos DB
Azure SQL Database
AI/ML
Copilot
Embeddings
Prompt Engineering
RAG
AI Agents
OpenAI
Frontend
Angular
React.js
DevOps
Azure
Azure AKS
Azure DevOps
Bicep
CI/CD
Docker
GitHub Actions
OpenTelemetry
Rest API
Terraform
Vector
Kubernetes
GitHub
Cybersecurity
Microsoft Entra ID
Apply
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Rest API Jobs - Remote & On-site
Frequently asked questions
Rest API: How many jobs are available now?
Alion currently lists 4,467 Rest API jobs across multiple companies, updated frequently.
Rest API: What is the typical salary for these roles?
The typical salary for Rest API roles on Alion is about $115,376 USD.
Rest API: Are remote work, relocation, or visa sponsorship options available?
Many Rest API listings are remote or hybrid; individual job posts specify relocation and visa sponsorship when available.
Rest API: How do I apply to jobs on Alion?
Open a Rest API listing to read the details and click apply to submit through the employer or Alion's application process.