Credit manager volunteer roles

Unify is building a social impact platform that helps get direct, practical support to people who need it most — with dignity, transparency, and real-world usability at the core.

We’re looking for a Senior Developer / Tech Lead (Volunteer) to guide the build, unblock the team, and help us ship a solid, scalable product. This is a light commitment (2–5 hours per week), but a high-leverage role: you’ll be working closely alongside the founders and our Product Manager.

What you’ll do (2–5 hrs/week)

• Lead engineering direction: keep the build clean, pragmatic, and shippable.

• Review PRs and raise code quality (architecture, security, performance, maintainability).

• Help prioritise technical work with the founders + Product Manager.

• Support and mentor a small volunteer/dev team (light-touch guidance, not heavy management).

• Set up or improve engineering foundations (CI/CD, environments, observability, release process).

• Identify risk early (security, data handling, scalability) and propose solutions.

What we’re building

• A production product with real users and real-world constraints.

• A platform where trust, safety, and reliability matter as much as features.

Tech stack

MERN stack

• MongoDB (database)

• Express.js (backend framework)

• React (frontend)

• Node.js (runtime / API layer)

What we’re looking for

• Senior-level software engineering experience (ideally with leading small teams or acting as tech lead).

• Strong product sense: you can balance “build it right” with “ship it”.

• Comfortable in ambiguous, early-stage environments.

• Solid judgement around security, data handling, and best practices.

• A collaborative communicator who can keep things calm and moving.

Nice to have (not required)

• Experience with marketplaces, payments, identity/verification flows, or credit/voucher systems.

• Experience setting up CI/CD, testing strategy, and deployment pipelines for MERN apps.

• Previous work in startups, charities, civic tech, or social impact.

Why join (and what you’ll get)

• Real ownership and influence — your decisions shape the product.

• Work directly with the founders + Product Manager.

• A mission-led build where shipping matters and the work is tangible.

• Flexibility: async-first, lightweight weekly rhythm.

Time + format

• Volunteer: 2–5 hours per week

• Remote / hybrid (where relevant)

• Async-first with a short weekly check-in

Interested?
Send a short note with your background + links (GitHub/LinkedIn/portfolio) and we’ll set up a quick chat

The Position

We are looking for a Grants Officer who can support us with diverse tasks that include looking for grants opportunities, project development, proposals writing, and liaising with potential partners and donors. In this role you’ll be a key contributor to the continued existence of Second Tree, which is dependent on grants to survive, and to the creation of new projects and partnerships. To do this successfully, you'll need to employ meticulous time-management and organisation skills, as juggling multiple tasks with competing deadlines is common in this role.

The role will include:

• Researching and identifying new grant opportunities on a weekly basis

• Summarising relevant grant opportunities and suggesting how to best respond and comply with them

• Researching information and data necessary for grants and grant reporting

• Supporting the design of new projects

• Supporting with proposal writing

• Maintaining necessary records, files, reports, databases, and resource materials for the Grants team

• Working with the wider Second Tree team to ensure that all project proposals align with organisational, and programme strategies

• Establishing and maintaining connections with funding bodies

You should be able to:

• Professionally communicate in English (verbally and in writing)

• Read, comprehend, interpret, summarise and follow proposal guidelines

• Work to tight deadlines with flexibility and a problem-solving attitude;

• Conduct thorough, high-quality, independent research

• Work both independently and as part of a team

• Manage and prioritise projects effectively to meet team and proposal deadlines

The ideal candidate will have:

• Working knowledge of project management techniques such as LFA

• Knowledge of and experience with grant-giving bodies and other external funding sources (e.g. European Commission)

• A strong sense of logic while building an argument

What We Offer:

• A nurturing and collaborative working environment. We work hard to help our team members grow, investing in personal and professional development.

• Accommodation in a shared house

• Transportation to/from work

• After completion of a three-month trial, if you commit long-term, a small monthly expenses refund

In certain periods of the year, demand is extremely high, and the shared houses might be full. If you have the means to pay for your own accommodation, please let us know. We would still be happy to host you if space is available. However, in a situation where the shared houses are full, this would allow us to offer an opportunity to someone that cannot afford to pay rent.

Have experience leading a team of this type?

Consider applying to become a Grants Coordinator. Whether your experience lies in the humanitarian sector or elsewhere, we are looking for people with expertise that can drive us forward as an organisation.

Looking for an internship?

If, because of your degree or for any other reason, you would like to have your period at Second Tree credited as an internship, just apply to the vacancy that you’re interested in and mention this. We have agreements with several universities across Europe, and in many other cases, these agreements can be developed on an ad hoc basis.

We encourage applicants to join us in person, but if this is not possible we will consider remote applications for this role.

NOTE: If you require a visa to stay in Greece for the minimum ten-week commitment, please know that as a Greek NGO, we are unable to sponsor your visa.