An Environmental Engineer with over a decade of experience designing and implementing innovative circular economy, waste management technologies and strategies, water recycling, wastewater treatment, water remediation systems, and WASH initiatives. I have a proven global experience across Europe, Asia, Africa, and the Americas, collaborating with international organisations including the World Bank, Asia-Pacific Economic Cooperation, Ban Ki-moon Center for Global Citizens, academic institutions, industries, NGOs, and grassroots organisations, and several governmental institutions.
As a 4X founding partner of sustainability-oriented companies, my vision is to contribute to regional decision-making for climate resilience through innovative technology and research-based strategies. Always eager to tackle new challenges and contribute to a climate-resilient future.
What I bring to the table:
- Wastewater Management
- Environmental, Social & Corporate Governance
- Manufacturing & Construction
- Sustainability
- Decarbonisation
- Reduce emissions
- Sustainability strategy
- Waste Management & Remediation
- Water Infrastructure Design
- Water Resources Engineering
- Water Treatment Engineering
- Environmental Engineering
- Hydraulic Engineering
- Water Treatment Engineering
- Environment
- Sustainability
- Wastewater Management
- Communications
- Project Management
- Regulatory Compliance
- MS Office
- Effective and strong Communication Skills
- Chemistry
- Science
- Technical Writing
- Content Writing
- Article Writing
- Academic Writing
- Style Guide
- Research Papers
Sustainability
Content Writing
Entrepreneurship
Podcast
Content Creation
Project Management
Environmental Engineering
Education Presentation
Academic Content Development
Wastewater Management
Climate Science
Academic Research
Proofreading
Nils B.
San Jose, Costa Rica
$65/hr
5.0
18 jobs
Professional Summary
Senior operations and sales growth leader with deep experience optimizing multi region operations,
leading large teams, and implementing AI powered systems that increase visibility, improve forecasting
accuracy and strengthen organizational performance. Skilled in designing operational frameworks,
process automation, ERP systems and cross functional workflows that improve productivity, reduce
bottlenecks and support scalable growth. Proven track record aligning Sales, RevOps, Marketing and
Operations to drive performance at scale across B2B, B2C and multi state environments, delivering
efficient execution, strong resource utilization and consistent revenue expansion.
Core Competencies:
Sales Leadership and Strategy
Territory leadership, pipeline optimization, KPI frameworks, sales coaching, team performance systems
Revenue Growth and GTM Execution
Market expansion, conversion optimization, forecasting accuracy, pricing strategy, lifecycle
management
AI and Data Powered Decision Making
Predictive analytics, AI assisted forecasting, performance dashboards, automation, BI reporting
RevOps and Commercial Excellence
CRM optimization, funnel management, onboarding playbooks, lead management systems, commercial process design
Operational Leadership
Multiregional operations, resource planning, budgeting, change management, cross functional
alignment
EXPERIENCE
Senior Consultant – AI Enabled Revenue Systems, ERP, AI Workflows Sept 2025 – Present
Lead operational systems design, ERP architecture and AI powered workflow optimization across
tech, legal and hospitality companies to improve organizational efficiency, visibility and scalability.
- Design and implement ERP systems, automation workflows and revenue dashboards while
advising leadership on operational scaling and cross functional execution
- Build segmentation models, lifecycle frameworks, repeat revenue systems and strategic
partnerships that support operational leverage and long term growth
Ergeon – Senior Growth Strategy Manager (Partnerships / GTM) Jan 2025 – Sept 2025
Directed operational alignment, GTM execution and scaling initiatives across Sales, RevOps and
Marketing to improve efficiency, forecasting accuracy and commercial performance.
- Delivered AI powered GTM and operational workflows that improved resource utilization,
market readiness and execution consistency
- Identified process gaps, operational bottlenecks and new strategic opportunities using
predictive analytics and cross functional insights
Ergeon – Head of Commercial and Residential Sales Sept 2019 – Dec 2024
Oversaw large scale commercial and residential sales operations across 16 states, implementing
operational systems, territory structures and AI powered tools to strengthen performance.
- Built and deployed GTM playbooks, geo expansion frameworks and product expansion
strategies that improved operational efficiency, accelerated acquisition and expanded
regional performance
- Led forecasting, planning and scaling with Finance and Marketing using predictive AI
dashboards that improved operational transparency, resource allocation and team productivity
GoodLife Fitness – Divisional Manager Nov 2012 – May 2018
- Managed 12–15 General Managers across multi location operations, driving consistent
commercial performance through leadership development, operational excellence and
improved service delivery
German
Pipedrive
Slack
Testing
Google Sheets
Scrum
Tableau
Management Skills
Growth Strategy
Email Communication
KPI Metric Development
Daniel C.
Alajuela, Costa Rica
$15/hr
5.0
7 jobs
3 years of On-premises AD administrator.
3 years as an Azure Account Management and Synchronization engineer.
3 years of experience with Azure administration
1 Year Centrify and Linux Access Management
I bring forth high quality organizational skills and a self-motivated drive to achieve
excellence.
Peers trainer and mentor for technical and soft skills.
Microsoft Active Directory
Microsoft Azure
Office 365
Report Writing
Training & Development
Cloud Computing
Cloud Management
Cybersecurity Monitoring
Andres B.
San Jose, Costa Rica
$35/hr
5.0
22 jobs
I help brands build lifecycle marketing systems that drive engagement, retention, and revenue — combining 10+ years of marketing automation expertise with hands-on email engineering and, more recently, AI-assisted workflow automation.
I've worked across Braze, Eloqua, Klaviyo, Mailchimp, MindFire, Dotdigital, and SendGrid, designing customer journeys, automating communications, and optimizing lifecycle performance for enterprise brands and fast-moving teams alike.
Recent highlights:
- Built Braze customer journeys for Amazon Ring scaling from 1,000 to 15M+ recipients, with localized subscription communications across 10+ languages
- Delivered high-volume, personalized email programs for Victoria's Secret, Bath & Body Works, Williams-Sonoma, and Citibank through agency work with Publicis Groupe and Omnicom
- Engineered responsive HTML/CSS email systems and reusable component libraries that cut production time and improved cross-client rendering
- Integrated AI tools (Claude, Cursor, ChatGPT) and MCP into marketing operations, connecting AI assistants directly to platforms like Dotdigital and Basecamp
My background spans strategy, email engineering, QA, and front-end development, so I can take a project from planning through pixel-perfect execution.
Services include:
- Marketing Automation Strategy & Journey Design
- Braze, Eloqua, Klaviyo, DotDigital & MindFire Campaign Builds
- Email Engineering (HTML/CSS, responsive, cross-client)
- Deliverability Audits & ESP Migrations
- Segmentation & Personalization (ampscript, handlebars, liquidJS)
- QA & Cross-Client Testing (Litmus, Email on Acid, InboxMonster)
- AI-Assisted Workflow & MCP Integration
If you need someone who can bridge strategy, execution, and emerging AI tooling in your marketing stack, let's talk.
Marketing Automation
Marketing Automation Software
Braze
Eloqua
Klaviyo
SendGrid
Email Deliverability
CRM Automation
A/B Testing
Audience Segmentation
HTML
Responsive Design
Email Testing
AI Chatbot
Email Template
Email Automation
Automated Workflow
Munoz G.
San Jose, Costa Rica
$20/hr
4.9
17 jobs
Are you trying to enter or grow in Latin America markets ?
I'm a Sales and Business Development Strategist with proven experience leading complex commercial projects across multiple industries in international markets — with 100% Job Success and Top Rated badge on Upwork.
What I do for my clients:
✅ Design market entry strategies for Latin America markets
✅ Build B2B sales pipelines from scratch
✅ Manage commercial teams and projects across industries
✅ Operate fluently in Spanish, Portuguese, and English — no cultural or language barriers
I don't just deliver results: I understand how clients in these markets think, negotiate, and make decisions.
If you're looking for someone who can represent your brand, open doors, and close deals in Latin America markets — let's talk.
Sales
Lead Generation
Project Management
Partnership Development
Price & Quote Negotiation
Customer Service
Telemarketing
Business Planning & Strategy
Business Development
International Sales
Business Management
B2C Marketing
Sales Development
Research & Strategy
International Business
Sourcing
SEO Content
English
Spanish
Portuguese
Stephen A.
Agua Buena, Costa Rica
$95/hr
5.0
105 jobs
🏆 Top Rated Product Developer ( I've developed my own products || I'm now helping others on the Upwork platform )
🏠 I have a Small Home Laboratory to develop/debug prototype boards for your product
💭 I'm a native English speaker
My name is Stephen, and I have 25+ years in product development, including 13 years at Microchip in roles like Test Engineer, Design Engineer, Silicon Validation, and Applications Engineer. My clients communicate directly with me - I don't use any AI chatbots as intermediaries.
I specialize in developing products from concept to working systems. I can handle both hardware and software or work flexibly on specific areas like architecture and hardware design.
I’ve developed two successful products:
(1) KEYKatcher hardware keylogger – A device plugged into a PS/2 keyboard port to record and play keystrokes. It was popular among parents for monitoring children's computer use, with tens of thousands sold. Sales declined as PS/2 ports became obsolete
(2) TightWatt pool timer – An intelligent controller for swimming pool motors, featuring a year-round algorithm. It was awarded a patent and gained national distribution.
Through all the product development, I’ve created a system for planning and designing working products. This system reduces costs ( by reducing mistakes ). I frequently make product improvements in
1️⃣ Lowering energy usage: important in battery-powered products
2️⃣ Increasing performance: increasing sample rates or changing communications protocols
3️⃣ Lowering product cost: making full use of the microcontroller peripherals to reduce external components
I have completed more than 70 projects on Upwork but to check my capabilities or skills, you can check out the following projects:
➡️ Hardware Prototype Design for Plant Monitor Product using ESP-32
➡️ Microchip ATtiny202 Code Development
➡️ Energy Storage Monitoring System
➡️ BM83 Bluetooth Application Schematic
➡️ Embedded System with PIC Microcontroller & Accelerometer
➡️ PCB Power Usage Optimization
➡️ TI MSP430 Development
Additional Skills:
➕ Leading-edge technologies such as USB/USB-C, Lithium Battery Charging, LED and Color Mixing, I2S Digital Audio, and Analog Measurements
➕ Common Communication Busses: USB, RS-232, RS-485, CAN, I2C, SPI, Infrared ( with carrier )
As mentioned above, I have a small home laboratory where I have all the tools I need to develop/debug prototype boards for your product. This includes:
⚙️ Multiple programmers for Microchip, Atmel, and TI parts
⚙️ Logic analyzers to quickly find issues with communication busses such as I2C, SPI, UART, I2S, ….
⚙️ A “power profiler” with picoAmp range ( yes, picoAmp, a trillionth of an Ampere ) for power optimization of low-power products
⚙️ A reflow oven for assembling prototype PCBs
⚙️ Inspection equipment for verifying PCB assembly
⚙️ A fellow Upwork contractor is available to do the physical assembly work. She works at a much lower rate than me and has the patience to hand-populate / hand-solder prototype boards
Some electronic inventory is on hand. I may have all the components in-house to complete your project
Feel free to contact me through UpWork.
Best Regards,
Stephen
Electrical Engineering
Assembly Language
C
Circuit Design
PIC16
Hardware Prototyping
USB Electronics
PCB Design
Embedded System
Microcontroller Design
MSP430
Software Architecture & Design
Microcontroller Programming
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