About One Acre Fund

Founded in 2006, One Acre Fund equips 5.5 million smallholder farmers to make their farms more productive. Across nine countries that together are home to two-thirds of Africa's farmers, we provide high-quality farm supplies, tree seedlings, accessible credit, modern agronomic training, and a wide range of other agricultural services. On average, this model enables any farmer to increase their income and assets on supported land by more than 35 percent, while permanently improving their resilience. This is all made possible by our team of 9,000+ full-time staff, drawn from diverse backgrounds and professions. To learn more, please see our Why Work Here blog post.

Our Rwanda program, founded in 2007 is our largest and operates under the local brand Tubura. We have more than 3,000 staff across all four provinces of Rwanda, as well as in Kigali. Together, we served more than 2.8 million farmers in 2024. We work closely with the government to support national efforts to improve food security. Additionally, we help channel funding and resources to promising agri-SMEs, supporting farmers by providing a market for high-impact crops such as coffee, avocado, and chili.

About the Role

Seeking an exceptional professional to lead procurement operations to source effectively and save money for the program, reinforce controls, build team capacity, and drive execution excellence in our procurement operations.

Responsibilities

Lead & Develop a High-Performing Procurement Team

• Manage, coach, and develop a multi-level procurement team, setting clear expectations and holding team members accountable for results.
• Identify skill gaps and support continuous professional development.

Deliver Efficient, Cost-Effective Procurement Execution

• Ensure timely delivery of goods and services that meet specifications, quality standards, and cost targets.
• Maintain accurate procurement data and documentation across all systems.
• Coordinate quality assurance activities and ensure adherence to best procurement practices.

Drive Cost Savings & Strategic Procurement Initiatives

• Lead and support strategic projects aimed at reducing costs and improving procurement efficiency.
• Partner with internal teams to optimise spend, consolidate demand, and improve purchasing decisions.
• Support strategic sourcing and supplier optimisation initiatives.

Strengthen Procurement Processes, Controls & Compliance

• Review and improve procurement processes, policies, and systems to enhance efficiency, transparency, and customer service.
• Implement standardised practices that reduce risk, save time, and improve value for money.
• Ensure compliance with internal controls and procurement governance requirements.

Career Growth and Development

We have a strong culture of constant learning and we invest in developing our people. You’ll have weekly check-ins with your manager, access to mentorship and training programs, and regular feedback on your performance. We hold career reviews every six months, and set aside time to discuss your aspirations and career goals. You’ll have the opportunity to shape a growing organization and build a rewarding long-term career.

Qualifications

Across all roles, these are the general qualifications we look for. For this role specifically, you will have:

• 5+ years of work experience in a related field.
• People management experience required.
• Project management experience is desirable.
• Bachelor's degree in Procurement, Logistics Management, or related field.

Preferred Start Date

As soon as possible

Job Location

Kigali, Rwanda

Benefits

Health insurance, housing, and comprehensive benefits

Eligibility

This role is only open to citizens or permanent residents of Rwanda, Kenya, Uganda, Tanzania, Burundi, Ethiopia, Zambia, Nigeria, Malawi and Democratic Republic of Congo.

Application Deadline

31 July 2026. Please note that we hire on a rolling basis, which means that applications are reviewed and processed on a continuous basis until a hire is made.

One Acre Fund never asks candidates to pay any money or pay for tests at any stage of the interview process. Official One Acre Fund emails will always arrive from an @oneacrefund.org address. Please report any suspicious communication here (globalhotline@oneacrefund.org), but do not send applications or application materials to this email address.

Diversity, Equity, Inclusion (DEI), and anti-racism are deeply connected to our organization’s mission and purpose. One Acre Fund aspires to build a culture where all staff feel consistently valued, represented, and connected – so that our team can thrive as professionals, and achieve exceptional impact for the farmers we serve.

We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, marital status, disability, gender, gender identity or expression. We are proud to be an equal opportunity workplace.

About You and The Role 

As a Data Labeling Specialist, you’ll play a key role in supporting Zipline’s global operations by providing data labeling coverage to ensure continuous, high-quality data processing. You’ll work alongside the broader Autonomy team to review and label data, adding critical contextual metadata for machine learning applications.

Our Perception systems rely on accurately labeled data to power safety-critical capabilities such as avoiding other aircraft, detecting ground-based obstacles, as well as ensuring safe and precise deliveries. Using internal and external tools, you’ll work across diverse data types and tasks, identifying patterns, outliers, and system issues. Success in this role requires exceptional attention to detail and methodical thoroughness.

What You'll Do 

• Become an expert in multiple sensor data streams, identifying issues, edge cases, and opportunities to improve labeling and review processes
• Use internal tools to label data and provide feedback to improve tool efficiency and usability
• Deliver high quality labeled data on a regular cadence to meet critical timelines and keep algorithm development on track
• Work with the Autonomy teams on various projects as needed.

What You'll Bring 

• Bachelor’s degree in an engineering field, or have completed all academic requirements including final year coursework and capstone presentations, with graduation pending
• Experience reviewing and labeling data
• Experience managing complex tasks and projects
• Ability to maintain a high level of attention to detail over extended periods of time
• Strong verbal and written communication skills in English.

What Else You Need to Know  

• Must have the legal right to work in Rwanda
• This position is expected to primarily operate during daytime hours; however, candidates must be flexible to work a rotating shift schedule, including nights, weekends, and public holidays as required.
• Available to work a minimum of 40 hours per week.
• Employment type: Full Time.

Zipline is an equal opportunity employer and prohibits discrimination and harassment of any type without regard to race, color, ancestry, national origin, religion or religious creed, mental or physical disability, medical condition, genetic information, sex (including pregnancy, childbirth, and related medical conditions), sexual orientation, gender identity, gender expression, age, marital status, military or veteran status, citizenship, or other characteristics protected by state, federal or local law or our other policies.

We value diversity at Zipline and welcome applications from those who are traditionally underrepresented in tech. If you like the sound of this position but are not sure if you are the perfect fit, please apply!

Please Note

We have received reports stating that certain individuals are reaching out to people under false pretenses, claiming to be Zipline employees, affiliates, agents, or representatives. They may seek to gain access to your personal information or to acquire money from you by offering fictitious employment opportunities or by claiming that they are contacting you on Zipline’s behalf.

Genuine Zipline employees or representatives will never ask you for money or payment in exchange for employment opportunities or other related services. Any such offer of employment or any other service in exchange for fees that claims to be from us is deceitful and part of a fraud.

If you believe you have been targeted by a fraudulent party, we ask that you immediately get in touch with us via email at security@flyzipline.com upon receiving a suspicious offer or claim.

About the Role

The Zipline Maps team is responsible for producing the high-precision geospatial data that our fully autonomous drones need to safely and reliably navigate complex urban environments—flying from fulfillment centers directly to homes, businesses, and other delivery locations. We build and maintain systems for collecting and aggregating spatial data from a variety of sources, validating our flight routes over the latest information, and providing geospatial services to stakeholders across the company. We use these tools to measure and manage risk and ensure regulatory compliance in each jurisdiction.

As Zipline grows, the imperatives of scale are driving the development of robust systems that enable distributed teams to manage geographic data around the world. We analyze the accuracy of elevation models, estimate and track the completeness of ground feature datasets, evaluate the impact of new distribution centers, model an evolving regulatory landscape, and keep everything up-to-date as time passes and the world changes around us.

As a Senior Full Stack Software Engineer, you’ll play a critical role in shaping the systems that bridge complex backend services with human operators around the world. You’ll collaborate with designers, product managers, and map editors to deliver elegant user interfaces that turn sophisticated data and workflows into simple, intuitive experiences.

This role is not just about building features—it’s about creating the face of Zipline’s technology. From operational dashboards that track thousands of daily deliveries, to interfaces that help regulators evaluate safety and compliance, to design systems that empower our entire engineering org, your work will directly influence how the world interacts with autonomous delivery at scale.

What You'll Do

• Build and scale full-stack systems that power Zipline’s global mapping and flight validation workflows
• Develop intuitive web applications for map annotators, and regulators to interact with complex geospatial data
• Build robust APIs and data pipelines that integrate multiple geospatial data sources, ensuring accuracy, completeness, and regulatory compliance
• Create reusable component libraries and design systems to ensure consistency across tools and dashboards
• Improve system reliability, performance, and observability to support autonomous delivery at global scale

What You'll Bring

• 5+ years of experience building and maintaining production web applications
• 2+ years of experience leading frontend projects, driving architectural decisions, and mentoring other engineers
• Strong expertise with Rust, Python, React (or similar frameworks), and modern full-stack tools
• Experience building component libraries and design systems that balance flexibility with consistency
• A customer-obsessed mindset, with the drive to continuously improve products in close feedback loops with real users
• Strong communication skills and a collaborative approach to solving problems across distributed teams

What Else You Need to Know   

Zipline is an equal opportunity employer and prohibits discrimination and harassment of any type without regard to race, color, ancestry, national origin, religion or religious creed, mental or physical disability, medical condition, genetic information, sex (including pregnancy, childbirth, and related medical conditions), sexual orientation, gender identity, gender expression, age, marital status, military or veteran status, citizenship, or other characteristics protected by state, federal or local law or our other policies.

We value diversity at Zipline and welcome applications from those who are traditionally underrepresented in tech. If you like the sound of this position but are not sure if you are the perfect fit, please apply!

Please Note

We have received reports stating that certain individuals are reaching out to people under false pretenses, claiming to be Zipline employees, affiliates, agents, or representatives. They may seek to gain access to your personal information or to acquire money from you by offering fictitious employment opportunities or by claiming that they are contacting you on Zipline’s behalf.

Genuine Zipline employees or representatives will never ask you for money or payment in exchange for employment opportunities or other related services. Any such offer of employment or any other service in exchange for fees that claims to be from us is deceitful and part of a fraud.

If you believe you have been targeted by a fraudulent party, we ask that you immediately get in touch with us via email at security@flyzipline.com upon receiving a suspicious offer or claim.

About Zipline 

Zipline is on a mission to transform the way goods move. Our aim is to solve the world’s most urgent and complex access challenges by building, manufacturing and operating the first instant delivery and logistics system that serves all humans equally, wherever they are. 
From powering Rwanda’s national blood delivery network and Ghana’s COVID-19 vaccine distribution, to providing on-demand home delivery for Walmart, to enabling healthcare providers to bring care directly to U.S. homes, we are transforming the way things move for businesses, governments and consumers. 
The technology is complex but the idea is simple: a teleportation service that delivers what you need, when you need it. Through our technology that includes robotics and autonomy, we are decarbonizing delivery, decreasing road congestion, and reducing fossil fuel consumption and air pollution, while providing equitable access to billions of people and building a more resilient global supply chain.

About You and The Role  

Do you want to not only make a difference in your community but around the world? Zipline is looking for an IT Support Engineer to support our teams in Rwanda.
As an IT Support Engineer at Zipline, you will use your technical skills and top-notch customer service to provide support for computer hardware, networking, operating systems, and application software. You will troubleshoot and solve straightforward problems, create documentation where necessary and be a pioneer in streamlining the IT processes in Rwanda. You will be crucial to our business, ensuring we are driving our mission forward and that our teams are running as smoothly as they can to deliver every life-saving package as efficiently as possible.
This role entails addressing issues as they arise across multiple distribution centers and operational countries in Africa and  will require at least 75% of your time working at a Distribution Center. 

What You'll Do

• Provide technical support for  our Help Desk ticketing system.
• Partner with our cross-functional, multinational teams to establish global standards and processes for IT inventory monitoring/shipping, IT onboarding for new team members, establishing safe security protocols for all devices, educating and guiding users on technical concepts and more.
• Support the implementation of IT policies across multiple distribution centers.
• Analyze IT Support inquiries to identify recurring user problems, recommend solutions, identify areas where service can be improved, and establish improvement plans.
• Write and implement technical guides to resolve basic issues and understand common workflows.
• Troubleshoot and provide technical guidance and education for users.
• Manage user access to resources and SaaS applications via identity management tools, following least-privileged/RBAC practices.
• Ensure timely follow-ups with user tickets and drive issues to resolution.
• Monitor network performance across the various distribution centers, and work with IT Engineering and ISP’s to resolve issues locally.
• Use Mobile Device Management (MDM) tools to manage device policies globally.
• Communicate effectively (verbally and in writing) and build strong relationships with internal teams and external stakeholders.
• Work as part of a global team across multiple time zones, countries, and languages.

 What You'll Bring

• HND or Degree in IT, Computer Science, Computer / Networking Engineering or related fields with at least 3-5 years of relevant experience in the field.
• Experience with providing stellar customer service to internal and external stakeholders.
• Experience with troubleshooting Audio Visual equipment using tools such as Google Meet, Zoom or Teams
• Knowledge in the following: Enterprise productivity tools (Google workspace, Microsoft 365), Identity Management (Okta, OneLogin, Entra ID), Operating System Administration (MacOS/iOS, Windows, Linux,
• ChromeOS etc) and device management (Kandji, Jamf, Intune, Jumpcloud).
• Knowledge of Networking Protocols, VPN’s and network security.
• Experience using Jira Help Desk or similar ticketing tools.
• Experience with networking concepts such as DNS, DHCP, SSL, OSI Model, and TCP/IP.
• Experience in PC repair, troubleshooting, deployment  and liquidation.
• Ability to translate technical concepts into simple language for users to understand.
• Must be eligible to work in Rwanda.

WHAT ELSE YOU NEED TO KNOW  

Zipline is an equal opportunity employer and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws or our own sensibilities.

We value diversity at Zipline and welcome applications from those who are traditionally underrepresented in tech. If you like the sound of this position but are not sure if you are the perfect fit, please apply!

--

Please Note

We have received reports stating that certain individuals are reaching out to people under false pretenses, claiming to be Zipline employees, affiliates, agents, or representatives. They may seek to gain access to your personal information or to acquire money from you by offering fictitious employment opportunities or by claiming that they are contacting you on Zipline’s behalf.

Genuine Zipline employees or representatives will never ask you for money or payment in exchange for employment opportunities or other related services. Any such offer of employment or any other service in exchange for fees that claims to be from us is deceitful and part of a fraud.

If you believe you have been targeted by a fraudulent party, we ask that you immediately get in touch with us via email at security@flyzipline.com upon receiving a suspicious offer or claim.

About You and the Role

We are seeking a Technical Program Manager to support Autonomy Data and Maps Operations for autonomous drone systems. As the Technical Program Manager for Autonomy Data and Maps Operations, you will own and scale how we produce autonomy data and maps so our drone systems can reliably operate in the real world. This role is responsible for turning messy, manual operational workflows into efficient, scalable, and high-quality systems by partnering closely with engineering. In practice, you’ll run the day-to-day map and data operations while also driving the tooling, automation, and process changes needed to support rapid growth.

This role sits at the intersection of machine learning data production, map curation, and platform enablement, and is responsible for translating real-world operational work into reliable, scalable inputs for autonomy development and deployment.

The TPM will own not only the day-to-day execution of autonomy data and map operations, but also the cross-functional engineering work required to scale those operations through better tooling, workflow redesign, and automation. This person will be expected to learn the current map creation and data production processes end-to-end, identify where they will break as we scale, and guide the engineering effort to define and implement how we should work in the future.

We value people who take ownership of outcomes, not just responsibilities; you’ll be identifying systemic bottlenecks early, driving clarity for complex decisions, and ensuring work gets completed even when challenges fall outside traditional role boundaries.

What You'll Do

Program Execution & Coordination

• Drive day-to-day execution of data and map curation programs used for ML development
• Own end-to-end map creation and delivery across planning, curation, validation, release readiness, and handoff to downstream users
• Coordinate across autonomy teams, engineering partners, and external vendors as needed
• Track progress, dependencies, risks, and timelines across multiple concurrent workstreams
• Drive clear operating procedures and decision-making across operations and engineering stakeholders
• Structure ambiguous work into executable plans and proactively manage delivery risk

Autonomy Data & Map Operations

• Learn and deeply understand current-state data and map production workflows, including where manual effort, quality escapes, and handoff friction exist
• Identify the process, tooling, and systems changes needed to scale map creation and data operations as demand grows and the business scales
• Translate operational pain points into clear engineering problem statements, requirements, and prioritized roadmaps
• Partner with Maps, Autonomy, and Data Platform engineering teams to drive implementation of automation, tooling, and workflow redesign
• Define future-state operating models for end-to-end map creation that improve throughput, quality, and predictability
• Ensure new tools and workflows are adopted successfully by operations teams and measurably improve performance

Cross-Functional & Platform Collaboration

• Act as the conduit between operations and engineering
• Translate operational pain points (manual work, bottlenecks, errors, scale limitations) into clear problem statements for tooling or feature development
• Have a sense for product and partner with Data Platform to shape requirements, prioritize work, and validate solutions
• Support rollout and adoption of new tools or workflows back into operations

Continuous Improvement

• Identify inefficiencies and failure patterns in data and map operations
• Propose process improvements, automation opportunities, and clearer ownership models
• Help standardize workflows while preserving flexibility for new sites, regions, or vehicle capabilities

What You’ll Bring

• Experience & Mindset:
• 2–4 years of experience in technical program management, data operations, program management, or similar roles
• Experience working with cross-functional technical teams (engineering, operations, ML data, or GIS)
• Strong organizational and communication skills, with the ability to manage multiple parallel workstreams
• Comfort working in ambiguous, fast-moving environments
• Ability to break down complex, loosely defined problems into actionable plans
• Experience leading operational transformation, process redesign, or automation efforts in partnership with engineering teams
• Ability to understand current-state workflows in depth and translate them into scalable future-state systems and operating models

• Technical & Program Skills:
  • Proven ability to manage complex cross-functional programs across scope, schedule, risks, dependencies, and milestones
  • Strong systems thinking, with the ability to quickly learn unfamiliar technical domains and understand tradeoffs
  • Experience translating operational workflows and pain points into engineering requirements, tooling needs, or product features
  • Familiarity with data operations concepts such as annotation workflows, QA/QC, data pipelines, validation, or storage
  • Proficiency with project/program management tools such as Jira, Smartsheet, MS Project, Asana, or similar
  • Ability to define and improve operational metrics such as throughput, quality, reliability, latency, or delivery predictability

• Communication:
  
  • Exceptional written and verbal communication across technical and non-technical stakeholders
  • Strong facilitation skills, with the ability to guide discussions, clarify decisions, and align diverse teams
  • Ability to influence without authority and drive change across operations and engineering teams
  • Adaptable and resilient when introducing new processes, tools, or operating models

Nice to Have

• Background in autonomous systems, robotics, drones, or AVs
• Experience with GIS, mapping platforms, or spatial data
• Exposure to data platform concepts (pipelines, ingestion, storage, validation)
• Experience working with vendors or distributed operations teams
• Experience with SQL or data analytics

What Else You Need To Know

Zipline is an equal opportunity employer and prohibits discrimination and harassment of any type without regard to race, color, ancestry, national origin, religion or religious creed, mental or physical disability, medical condition, genetic information, sex (including pregnancy, childbirth, and related medical conditions), sexual orientation, gender identity, gender expression, age, marital status, military or veteran status, citizenship, or other characteristics protected by state, federal or local law or our other policies.

We value diversity at Zipline and welcome applications from those who are traditionally underrepresented in tech. If you like the sound of this position but are not sure if you are the perfect fit, please apply!

--

Please Note

We have received reports stating that certain individuals are reaching out to people under false pretenses, claiming to be Zipline employees, affiliates, agents, or representatives. They may seek to gain access to your personal information or to acquire money from you by offering fictitious employment opportunities or by claiming that they are contacting you on Zipline’s behalf.

Genuine Zipline employees or representatives will never ask you for money or payment in exchange for employment opportunities or other related services. Any such offer of employment or any other service in exchange for fees that claims to be from us is deceitful and part of a fraud.

If you believe you have been targeted by a fraudulent party, we ask that you immediately get in touch with us via email at security@flyzipline.com upon receiving a suspicious offer or claim.

About You and The Role

We are looking for a highly motivated and skilled data analyst to build out system health and performance monitoring within the Systems Engineering team, working closely with the team’s Senior Data Scientist. This role will play a key part in identifying critical fleet issues, improving safety, and removing barriers to Zipline’s growth. The successful candidate will work closely with engineers across Zipline, helping them understand the performance of their systems and how they relate to others, as well as senior leadership, assisting in measuring key company metrics. The ideal candidate has deep experience in data analytics, particularly in monitoring real-world hardware and/or operations, and can work adeptly with both highly technical and non-technical stakeholders to extract actionable insights from complex technical data.

What You’ll Do

• Design and build data analytics solutions, including monitoring dashboards, alerting tools, and ad hoc analyses, to track Zipline’s core flight reliability and safety metrics.
• Collaborate with System Engineers and partner teams to track the health of hardware, software, and operational systems.
• Create software scripts (in SQL and Python) to extract system performance data from raw flight logs.
• Work autonomously with other Data Scientists and Analysts across the company to create and maintain shared data models in our data warehouse, ensuring company-wide access for analytics and reporting.
• Ensure that we are following best practices for efficient data access across multiple technical systems.
• Serve as a source of knowledge and expertise, assisting team members across the company in locating and reporting on their own data.

What You’ll Bring

• 3+ years of experience in data analysis or business intelligence, preferably related to hardware-software systems or operations.
• Strong proficiency in data visualization tools such as Mode, ThoughtSpot, Looker, Tableau, PowerBI, or similar.
• Experience writing SQL queries to extract, manipulate, and aggregate large datasets from relational databases, including complex joins, aggregations, and window functions, with the ability to optimize and debug queries for performance and readability.
• Experience working with Snowflake’s cloud data platform or comparable data warehouse/data lake tools.
• Excellent problem-solving and analytical skills.
• Strong communication skills, with the ability to present complex data in a clear, concise manner to both technical and non-technical audiences.
• Ability to work independently and manage multiple projects simultaneously.
• Inherent self-motivation, adaptability, and creativity.
• Familiarity with Python for data analysis, including working with pandas, numpy, matplotlib, etc., and exploratory analysis in a Jupyter notebook environment.
• Must be willing to relocate to Kigali, Rwanda for this role

Preferred but Not Required:

• Experience using DBT to create data ETL pipelines.
• Experience with GIS and spatial analysis.
• Knowledge of GitHub and the ability to navigate a software pull request workflow.

What Else You Need to Know

Zipline is an equal opportunity employer and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws or our own sensibilities.

We value diversity at Zipline and welcome applications from those who are traditionally underrepresented in tech. If you like the sound of this position but are not sure if you are the perfect fit, please apply!

Please Note

We have received reports stating that certain individuals are reaching out to people under false pretenses, claiming to be Zipline employees, affiliates, agents, or representatives. They may seek to gain access to your personal information or to acquire money from you by offering fictitious employment opportunities or by claiming that they are contacting you on Zipline’s behalf.

Genuine Zipline employees or representatives will never ask you for money or payment in exchange for employment opportunities or other related services. Any such offer of employment or any other service in exchange for fees that claims to be from us is deceitful and part of a fraud.

If you believe you have been targeted by a fraudulent party, we ask that you immediately get in touch with us via email at security@flyzipline.com upon receiving a suspicious offer or claim.

About You and The Role 

Zipline’s Nest Applications Software team builds and manages the fulfillment, maintenance and flight systems that power our operations in Africa. We are responsible for the software that manages medical inventory, order processing, and flight coordination for automated delivery at scale. Our work spans internal platforms that streamline supply chain, and financial workflows, as well as external-facing applications that allow customers to place and track orders. By connecting every corner of the business through software, we ensure Zipline can operate efficiently, intelligently, and globally.

What You'll Do  

• Deep dive into your users’ problems to simplify operational workflows which enable the business to move efficiently 
• Architect simple, modular, flexible software systems that evolve with fast changing business needs.
• Lead backend and frontend development of major projects across all aspects of a modern tech stack.
• Establish strong automated testing practices across unit, integration, and system layers.
• Improve reliability, observability, and operational robustness of production systems.
• Systematize AI-assisted workflows across development, testing, and operations.
• Maintain clear engineering patterns, code quality standards, and review discipline.
• Mentor junior engineers through direct coaching, pairing, and design reviews.
• Increase team throughput by reducing friction, simplifying architecture, and eliminating waste.

What You'll Bring 

• 8+ years building and operating production-grade distributed systems.
• Deep experience developing full stack software using Python, Go, or a similar object-oriented language.
• Frontend experience using React or similar Javascript frameworks.
• Experience architecting distributed and event-driven systems using Kafka or similar technologies.
• Database modeling and performance tuning experience with Postgres.
• Demonstrated history of designing systems that are simple, flexible, and resilient.
• Proven implementation of comprehensive automated testing strategies.
• Experience driving architectural decisions in fast-changing environments.
• Track record of mentoring and growing junior engineers.

Nice to Haves

• Experience building modern fulfillment, logistics, or warehouse systems.
• Willingness to spend significant time in Kigali, Rwanda, via travel or relocation.
• Production experience with Kubernetes and AWS.

What Else You Need to Know   

The final cash pay for this role will depend on a variety of factors, including a specific candidate's experience, qualifications, skills, working location, and projected impact. The total compensation package for this role may also include: equity compensation; overtime pay; discretionary annual or performance bonuses; sales incentives; benefits such as medical, dental and vision insurance; paid time off; and more.

Zipline is an equal opportunity employer and prohibits discrimination and harassment of any type without regard to race, color, ancestry, national origin, religion or religious creed, mental or physical disability, medical condition, genetic information, sex (including pregnancy, childbirth, and related medical conditions), sexual orientation, gender identity, gender expression, age, marital status, military or veteran status, citizenship, or other characteristics protected by state, federal or local law or our other policies.

We value diversity at Zipline and welcome applications from those who are traditionally underrepresented in tech. If you like the sound of this position but are not sure if you are the perfect fit, please apply!

About One Acre Fund

Founded in 2006, One Acre Fund supplies over 5 million smallholder farmers with the agricultural services they need to make their farms more productive. Our 9,000+ team is drawn from diverse backgrounds and professions. With operations across ten countries in Africa, we help farmers prosper by providing quality farm supplies on credit, agricultural training to improve harvests, market access facilitation, and agroforestry support.

To learn more about our work, take a look at our Why Work Here blog for more information.

About the Role

The Impact division supports all One Acre Fund programs to generate more impact, wherever we work. We help the organization keep three core aspects of impact at the forefront of our work: 

1. Improve farmer livelihoods and profitability in the short term
2. Ensure long-term viability through sustainable agricultural practices (soil health, crop diversity, etc.)
3. Address non-agricultural needs of farming households (energy, nutrition, etc.)

Responsibilities

Lead Annual Emissions Calculations

• Work with all relevant departments to gather data/inputs for footprint accounting.
• Clean and share data with partners for independent review and calculation.
• Build internal long-term tracking tools to help us understand our emissions hot spots and mitigation opportunities.
• Help set and track progress against global and program-specific emissions reduction targets.

Lead key strategic projects to reduce emissions in hot-spot areas.  

• Prioritize a few key mitigation opportunities to tackle at a time based on size and feasibility of potential reduction.
• Work with teams across the organization (program teams, inputs/sourcing teams, operations teams, etc.) to reduce emissions in their operations or purview.  This will require research & learning about the specific emissions hotspot and potential solutions, evaluating options with program teams, and implementing agreed-upon actions.  

Manage our Environmental & Social Impact Assessment (ESIA) process for all products and services offered by 1AF.

• Ensure that programs adhere to ESIA processes, including evaluating potential new products and services and implementing any mitigating actions required.  

Lead Innovation & Improvement

• Research and propose improvements to sustainability in One Acre Fund’s operations across the board.  
• If approved, and if there is not already a clear owner, lead these innovations and improvements.

Career Growth and Development

We have a strong culture of constant learning and we invest in developing our people. You’ll have weekly check-ins with your manager, access to mentorship and training programs, and regular feedback on your performance. We hold career reviews every six months and set aside time to discuss your aspirations and career goals. You’ll have the opportunity to shape a growing organization and build a rewarding long-term career.

Qualifications

We are seeking an environmental sustainability professional with 3-5+ years of relevant work experience and a demonstrated passion for our mission.  Across all roles, these are the general qualifications we look for. For this role specifically, you will have:

Passion, motivation, & humility. Genuine passion for continually, sustainably, improving farmer livelihoods.

• Skilled collaborator who can bring others on side and help them make necessary changes to their operations.  
• Humble service: willingness to roll up your sleeves to help busy team members make sustainability improvements.
• Enthusiasm for learning and an openness to feedback.

Technical aptitude for improving sustainability

• University (or higher) degree in Environmental Studies or a related field.
• Demonstrated experience in identifying, developing, and implementing projects that improve organizational sustainability.
• Analytical skills: ability to analyze data to identify hotspots and their drivers.  

Communication & Collaboration: Strong verbal and written communication across a wide range of audiences - from non-technically-trained colleagues to external experts.  

• Open listener; can develop trust of colleagues and teams.  
• English required.  Swahili, Kinyarwanda, Kirundi, or French a plus.

Productivity

• Strong organizational skills and ability to keep dozens of diverse tasks and initiatives on track.
• Ability to deliver results quickly, whether working independently or collaboratively.

Other requirements

• High proficiency in MS Excel, Word, Power Point (or online equivalents).
• Ability to travel within the region - preferred

Preferred Start Date

As soon as possible

Job Location

Kigali, Rwanda (flexible within our countries of operation, depending on work authorization)

Benefits

Health insurance, housing, and comprehensive benefits

Contract Duration

2 years (renewable to a permanent role based on performance)

Eligibility

This role is only open to citizens or permanent residents of Burundi, Rwanda, Kenya, Uganda, Zambia, Malawi, Tanzania, Ethiopia, and Nigeria. 

Application Deadline

11 May 2026. Please note that we hire on a rolling basis which means that applications are reviewed and processed on a continuous basis until a hire is made.

One Acre Fund never asks candidates to pay any money or pay for tests at any stage of the interview process. Official One Acre Fund emails will always arrive from an @oneacrefund.org address. Please report any suspicious communication here (globalhotline@oneacrefund.org), but do not send applications or application materials to this email address.

Diversity, Equity, Inclusion (DEI), and anti-racism are deeply connected to our organization’s mission and purpose. One Acre Fund aspires to build a culture where all staff feel consistently valued, represented, and connected – so that our team can thrive as professionals, and achieve exceptional impact for the farmers we serve.

We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, marital status, disability, gender, gender identity or expression. We are proud to be an equal opportunity workplace.