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Upstream Tech Stack

Mobile marketing platform serving operators and enterprises across emerging markets

Software Development London, 201–500 employees Founded 2001 Privately Held
upstreamsystems.com LinkedIn

Upstream is a Java/Spring-based mobile marketing platform built on Kafka, Elasticsearch, and Redis, reaching 1.2 billion consumers across 45+ countries in Latin America, Africa, the Middle East, and Southeast Asia. The company is actively scaling in Brazil and Asia while balancing engineering and sales hiring equally—a pattern consistent with their dual focus on platform reliability (scaling, incident response, availability) and geographic expansion through operator partnerships.

Tech Stack 38 technologies

Core StackJava Hibernate RabbitMQ Kafka Maven Redis Elasticsearch Couchbase JavaScript React Next.js Express.js Kubernetes Cisco Python Jira TypeScript Express MongoDB PostgreSQL Laravel SAP VMware Spring Framework Hazelcast Ehcache Checkpoint bash Memcached CI/CD+8 more

What Upstream Is Building

◆Challenges

  • Driving revenue growth in asia
  • Expanding footprint with mobile operators
  • Strengthening position as a leader
  • Meeting platform performance goals
  • Ensuring platform reliability
  • Scaling platform for growth
  • Maintaining high availability
  • Vulnerability management lifecycle
  • Incident response management
  • Speed and consistency of sales execution

▲Active Projects

  • Expanding services in brazil
  • Upselling within existing projects
  • Building local partner ecosystem
  • Regional sales strategy for asia
  • P&l and business planning for region
  • Market insights and emerging opportunities
  • Automating tasks and procedures
  • Campaign management
  • Data analysis
  • Process automation mapping

Hiring Activity

Accelerating15 roles · 15 in 30d

Department

Engineering
5
Sales
5
Marketing
1
Ops
1
Product
1
Security
1
Support
1

Seniority

Mid
4
Manager
3
Director
2
Intern
2
Junior
2
Senior
2

Notable leadership hires: Account Director, Sales Director

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About Upstream

Upstream provides omnichannel mobile marketing and operator billing solutions to enterprises in telecom, insurance, education, FMCG, and retail. The platform handles digital subscriptions, ad fraud protection, and mobile commerce, operating primarily in emerging markets where operator relationships are core to customer acquisition. Headquartered in London and founded in 2001, the company now spans 201–500 employees across Brazil, Malaysia, South Africa, and other regions, with active projects focused on regional sales strategies, local partner ecosystems, and platform automation.

HeadquartersLondon,
Company Size201–500 employees
Founded2001
Hiring MarketsBrazil, Malaysia, South Africa

Frequently Asked Questions

What tech stack does Upstream use?

Core stack: Java, Spring Framework, Kafka, Elasticsearch, Redis, PostgreSQL, MongoDB. Frontend: React, Next.js, TypeScript. Infrastructure: Kubernetes, Cisco, Checkpoint, VMware. Enterprise: SAP, Jira CI/CD.

Where is Upstream headquartered?

London, United Kingdom. The company was founded in 2001 and now operates in 45+ countries, with current expansion focus in Brazil, Malaysia, and South Africa.

How this profile is built

Upstream's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.