We make amazing happen.

LambdaWorks is a digital product agency that transforms bold ideas into elegant software.

Our experience ranges from creating initial MVP's for startups to developing complex custom business solutions for established companies.

We don't believe in a single technology, but in using the best set of technologies for each product we build. Technologies in our stack include Scala, React, Java, Typescript, Python, Serverless, JavaScript, Haskell, and others. 

Expertise and services:

  • Web and mobile development

  • Business intelligence & custom analytics

  • Platform integrations (Twilio, Shopify, SalesForce...)

  • Product ideation & technical consulting

We are LambdaWorks and we build digital products.

 
$10,000+
 
$50 - $99 / hr
 
10 - 49
 Founded
2017
Show all +
Novi Sad, Serbia
headquarters
  • Vojvodanskih brigada 12
    Novi Sad 21000
    Serbia

Portfolio

Key clients: 

SuperPhone

SuperPhone Image

SuperPhone

Marketing platform used by big-league enterprises

SuperPhone is a long-term project we’ve been working on since 2016, so long-term that one of our own is the CTO of SuperPhone.

SuperPhone teamed up with LambdaWorks to build a software development team that could truly realize the potential behind their idea and approach the massive task as a partner.

LambdaWorks set on turning the initial MVP into a platform that could handle extreme loads and offer bespoke stability.

Through the years, SuperPhone developed into a serious platform that keeps growing, having customers like Atlantic Records and Parmigiani, and being backed by VC superstar Ben Horowitz.

BirdsEye Image

BirdsEye

Digesting Twitter feeds into smart newsletters

BirdsEye could be classified as a micro-app and a perfect example of what can be accomplished in only 2 weeks of development time (the actual time in which the whole app was built).

When the BirdsEye team came to us with the idea of building an application that would be able to go through the endless content

from your twitter feed and make it into a digestible custom newsletter, we couldn't do anything else but jump straight into making it.

A well-organized team of only two developers discussed the idea with the BirdsEye team, further refined it and defined the features. Then they gave themselves only 2 weeks to have it up and running and did it in that micro time frame.

BizzIt Image

BizzIt

B2B experience platform with sales intelligence

The BizzIt founding team was on the lookout for a partner that could deliver a full product and leave the founding team to take care of growing the business and raising the much needed funding.

Our principal challenge was to deliver a platform that is flexible, allowing easy integrations with other platforms

and easy addition of new features. On top of that, we had developed a custom SalesForce application, so BizzIt users would be able to import review data directly from SalesForce.
NagNag Image

NagNag

Creating a task force from your network

Ok, so this one is ours... we wanted to solve a complex problem and along the way improve our product development processes.

Having to face various business decisions, we developed a new sensibility for everyday efforts that our partners put in to make their product truly successful.

The idea was to make a task assigner powered

by the simple SMS, introducing SMS as a direct way of executing and getting notified about everyday tasks. The idea is simple, but the technical challenges were not. Generative software design, progressive standards and complex integrations allow NagNag to be a flexible and adaptable piece of software.
Novak Djokovic Foundation (NDF) Image

Novak Djokovic Foundation (NDF)

Data engineering for a worthy cause

The NDF is a global charity foundation, founded by Novak and Jelena Djokovic, focused on early-stage child education and development. When we heard that the NDF team is lacking the right tools to help them decide where they should invest their resources towards improving preschool education, we decided to give a helping hand.

Together, we

designed and developed a unique data-driven engineering tool that gathers, processes, visualizes and pinpoints the key factors critical to early-stage child development.

The team at NDF is now able to better manage their resources, as well as track the performance of their past projects in local communities. On top of that, as an added benefit they can present the results of their efforts to donators and the public in an objective data-driven way.

Lambert Image

Lambert

Slack bot to serve the office needs

Lambert is the bottler every office needs, handling some basic office needs as settling office debts, creating foosball tournaments, being the secret Santa...

Behind its cute facade lays a serious piece of neatly packed software. Using serverless architecture, Lambert's maintenance costs are at a minimum. Application management is done by

vendors, so there is no server or database maintenance.

The architecture is formed so the application is able to handle an extraordinarily high number of requests just as well as it can process a single request from a single user, providing on-the-spot scalability.

Reviews

Sort by

Custom Dev for Consumer Utility App

“I was impressed with the granular breakdown of task to time completion.”

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$10,000 to $49,999
 
Aug. - Oct. 2018
Project summary: 

LambdaWorks handled the full-stack development for a consumer utility app. In addition to planning and setting up usage analytics, their team handled the front- and backend development using Figma.

The Reviewer
 
1-10 Employees
 
New York, New York
Nick Rizk
Founder & CEO, Rizk Media
 
Verified
The Review
Feedback summary: 

The web application was completed a month before the deadline. LambdaWorks’ daily contact and iterative methodology complement their project management style. Steadfast commitment and clear communication are hallmarks of their work.

The client submitted this review online.

BACKGROUND

Please describe your company and your position there.

Rizk Media builds consumer-focused utility applications, such as a CRM tool, an information aggregator via email such as Birdseye, etc. I am the founder/CEO and LambdaWorks was contracted to develop the Birdseye web application.

OPPORTUNITY / CHALLENGE

For what projects/services did your company hire LambdaWorks?

We hired LambdaWorks for end to end development of the Birdseye web application. This included frontend and backend development.

What were your goals for this project?

The goal was to build a newsletter aggregator powered by Twitter. The specifications were mocked up in Figma, a prototyping tool, as well as product functionality requirements. Specifications required responsive design and intelligent tracking of newsletter performance.

SOLUTION

How did you select this vendor?

We had worked together on a project called SuperPhone. I then approached them about building the MVP of Birdseye. After delivering rudimentary materials including design specs in Figma and product functionality requirements, the team planned a 2 week sprint for the development of Birdseye. There were some adjustments after the sprint. In total, we paid $10K for the development of Birdseye.

Describe the project and the services they provided in detail.

They helped with planning in addition to development. We provided initial guidelines including wireframes and high fidelity mockups, and then had a couple of planning sessions to communicate specific functional requirements. LambdaWorks was responsible for the full stack development of the web application, in addition to setting up analytics around usage.

What was the team composition?

We worked with a team of 2-3 people at LambdaWorks, a couple of engineers and a product manager. They were very responsive and clear in their communication during the development process.

RESULTS & FEEDBACK

Can you share any information that demonstrates the impact that this project has had on your business?

I was impressed with the granular breakdown of task to time completion. We were able to go to market a month earlier because of LambdaWorks steadfast commitment to the project.

How was project management arranged and how effective was it?

Project management was handled by a senior dev at LambdaWorks. We had daily standups and then a couple of calls regarding iteration. All in all we always felt in touch during the development process.

What did you find most impressive about this company?

Direct access to project manager for discussing progress and communicate feedback was the biggest differentiator working with LambdaWorks. Additionally, they set up expectations clearly, communicating a date and delivering on it.

Are there any areas for improvement?

Maintain the strong culture around communication as you scale up!

5.0
Overall Score very professional development firm
  • 5.0 Scheduling
    ON TIME / DEADLINES
    very responsive
  • 5.0 Cost
    Value / within estimates
    $10K for MVP web app, no bugs since
  • 5.0 Quality
    Service & deliverables
    exactly as intended
  • 5.0 NPS
    Willing to refer
    already have!

Web Development for Big Data Platform

"They catered to our specific needs, which is what we required from the start."

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
Less than $10,000
 
Sept. - Nov. 2019
Project summary: 

LambdaWorks created a big data platform that consolidated statistical information from various resources on children's well-being.

The Reviewer
 
11-50 Employees
 
Belgrade, Serbia
Marko Kovacevic
Project Manager, Novak Djokovic Foundation
 
Verified
The Review
Feedback summary: 

With the current platform, internal stakeholders can now access and cross-reference previously elusive data. The information will play a critical part in determining the nonprofit's future project plans. LambdaWorks demonstrated a high level of dedication to the task and was open to client input.

The client submitted this review online.

BACKGROUND

Please describe your company and your position there.

Novak Djokovic Foundation focuses on improving the settings and conditions of early childhood education and development for preschool aged children from socially disadvantaged municipalities throughout the Republic of Serbia.

OPPORTUNITY / CHALLENGE

For what projects/services did your company hire LambdaWorks?

We had a lot of issues and challenges in gathering and obtaining the statistical data showcasing all of the primary indicators for the current state of children's well-being in different regions of our country.

In order to pinpoint locations where the needs of children have reached an alarming level, we needed to gain access to different data sources, and organize them in one place.

What were your goals for this project?

Our main goal was to cross-reference all of the data sources within our country (and the differing results they were showing), so that we could calculate and measure exact indicators, and create an overview of the state of well-being of children on a national and regional level.

SOLUTION

How did you select this vendor?

LambdaWorks were first consulted on a recommendation from one of our closest associates, as they had great experience in working with them. We were considering a couple of other companies, which we had the experience of working before, but felt that the team at LambdaWorks understood best what our need was, and how to create a product which would suit us.

Describe the project and the services they provided in detail.

Our team provided them with some of the data sources we were using up to now, and directed them towards additional sources which could be useful. Afterwards, their team created the platform based on our input on what we required both from the data side and the functionality of the future product.

What was the team composition?

Their team consisted of three people: one member who was negotiating and communicating with us, and two other members who did the technical part of the job.

RESULTS & FEEDBACK

Can you share any information that demonstrates the impact that this project has had on your business?

We are very satisfied with how the product can be used right now, as we have access to data which was very hard to find and cross reference before. We've been using it for strategic planning of project locations for 2020, and the research we do before establishing projects within various municipalities.

How was project management arranged and how effective was it?

The project management side was very precise in communicating how they envisioned what the product could look like based on our input, which steps and deadlines they are setting, and which information they initially require in order to start their work. They were very respectful of all of the agreements we had, and successfully delivered the product on time.

What did you find most impressive about this company?

They were dedicated to making this product work, and they were very open to listening to our initial input, as well as the feedback we provided on each step. They catered to our specific needs, which is what we required from the start.

Are there any areas for improvement?

We wouldn't be able to focus specifically on what they could improve, as this wasn't as complicated a project, and was pretty straightforward in terms of the goals set and work required.

5.0
Overall Score
  • 5.0 Scheduling
    ON TIME / DEADLINES
  • 5.0 Cost
    Value / within estimates
  • 5.0 Quality
    Service & deliverables
  • 5.0 NPS
    Willing to refer

Platform Development for B2B Data Company

"I’ve worked with numerous levels of engineering, and their resources of some of the best I’ve ever seen."

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$50,000 to $199,999
 
Nov. 2018 - Ongoing
Project summary: 

LambdaWorks functions as the main product team for a B2B data company. They’ve built out a dynamic enterprise-level SaaS platform that features an AWS-heavy backend.

The Reviewer
 
1-10 Employees
 
San Francisco, California
Ryan Rudin
CEO, Bizzit
 
Verified
The Review
Feedback summary: 

Besides their speed, LambdaWorks impresses with their talented pool of senior-tier engineers. The team is nimble, assigning resources based on the task at hand, which allows for a cost-effective price structure. Their ability to scale early-stage products also makes them particularly invaluable.

A Clutch analyst personally interviewed this client over the phone. Below is an edited transcript.

BACKGROUND

Introduce your business and what you do there.

I’m the founder and CEO of a B2B SaaS startup.

OPPORTUNITY / CHALLENGE

What challenge were you trying to address with LambdaWorks?

At a startup, there are various stages of developing a product. We were looking for good senior-level engineers to build out those stages based on our business goals.

SOLUTION

What was the scope of their involvement? 

LambdaWorks serves as our product team. They’ve built and are continuing to work on our evolving SaaS platform. It’s an enterprise-grade data solution that relies on AWS as a database as well as having messaging systems. 

What is the team composition? 

The team changes based on the task at hand. I have two main points of contact: Bojan (CTO, LambdaWorks) and Filip (Product & Business Development, LambdaWorks). When we’re building the product, we usually bring on two other resources.

This model allows us to pay for what we need and still get high-quality work without wasting resources. For example, we could switch in a Salesforce AppExchange developer only when working on our Salesforce app.

How did you come to work with LambdaWorks?

They were on our radar. I’d worked with product engineers in the area before, so I knew the landscape pretty well. After talking with Bojan, they were the clear choice. He was able to clearly lay out a lot of our requirements — not to mention, they’d already scaled another product in the US.

How much have you invested with them?

We’ve spent $60,000 to date, and it’s about to be another $40,000. They’re one of the best deals for the level of engineering that they provide.

What is the status of this engagement?

We started in November 2018, and the engagement is ongoing.

RESULTS & FEEDBACK

What evidence can you share that demonstrates the impact of the engagement?

The quality of work is so good because they’re brilliant engineers. I used to ask some of my high-level product connections to oversee LambdaWorks’ output, but I don’t need to anymore. Their team doesn’t take any shortcuts either, which has helped us avoid creating technical debt. 

How did LambdaWorks perform from a project management standpoint?

When we’re in our routine, they set the schedule and provide weekly updates in a concise way, which is nice. The team communicates over video conference meetings, and we’re all in the same Slack channel.

I’m now able to trust a lot of decisions that they make because I realized that I was inevitably saying yes to most things. That has allowed us to define levels of importance for certain requirements because they know what we’re doing and can bring their own level of creativity.

What did you find most impressive about them?

At the end of the day, it’s their quality that sticks out. They could charge a lot more if they were based in the US because their skills are that good, and they produce work relatively fast. I’ve worked with numerous levels of engineering, and their resources of some of the best I’ve ever seen.

Are there any areas they could improve?

Outside of the time difference, I don’t really have anything to add.

Do you have any advice for potential customers?

LambdaWorks specializes in scaling quality early-stage products. That means that it’s important to really give them detailed requirements — not just on short-term goals, but also looking at where you see the product five years from now. Keeping that in mind will help them build in the right flexibility into your product, which saves time and costs.

5.0
Overall Score
  • 5.0 Scheduling
    ON TIME / DEADLINES
  • 5.0 Cost
    Value / within estimates
  • 5.0 Quality
    Service & deliverables
  • 5.0 NPS
    Willing to refer