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10 of 222 API Jobs • Sort by
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Backend Developer Stream Amsterdam, The Netherlands €65,000 to €80,000 a year
June 2020
3 Applicants This Week
More Than 6 Months Old
Job Description
We are looking for a Backend Software Engineer to join our development team in Amsterdam. Job duties will include working on Stream's core API technology as well as designing and building high-performance software.
What you will be doing
Most of your day will be dedicated to software design, research, and coding. On typical projects, you will have a lot of freedom and you will be paired with another team member. Our team is made up of very experienced engineers, some with more than 10 years of experience. By working together you will learn from each other along the way. You will have an enormous impact on making our API service faster, more scalable and more flexible.
You will add new features to the service and find ways to make the existing ones perform orders of magnitude faster. Our customers have millions of users; they use Stream for mission critical features such as showing content and exposing core functionality of their application. Building stable and reliable software is not just an option: as a member of the development team, you will design and write state-of-the-art software, follow best practices, measure everything and be responsible for deployment to production. You will also spend part of your time talking to our customers and help them to use Stream in their app.
The challenges
Distributed databases: we built our own data store for feeds and for chat
Real-time messaging
High performance: our API responses are in the 10ms range
High scalability: we use sharding, master-master, and master-slave to ensure scalability
High availability: our entire infrastructure is designed and operated to survive entire datacenter crashes
Multi-region: we deploy our service on 4 different continents
Our tech stack
At Stream we use a wide collection of technologies to offer highly optimized and available features to our customers. Over the years we have experimented with different programming languages, frameworks, databases, and libraries. Here is a short list of the technology that we currently use. Do not worry if you do not master them all or if you do not see your favorite tool or language, you will have the chance to be exposed to most and to convince us to expand the list:
Go, gRPC, RocksDB, Python
Postgresql, RabbitMQ
AWS, Puppet, CloudFormation
Grafana, Graphite, ELK, Jaeger
Redis, Memcached
What we have to offer you
Stream employees enjoy some of the best benefits in the industry:
A competitive salary
Company equity
A team of exceptional engineers
Healthy team lunches
Plenty of snacks and fancy coffee/teas
An office in the heart of Amsterdam
The possibility to visit our office in Boulder, CO
The opportunity and support to attend and/or present to industry-related conferences and meetups
The chance to work on OSS projects
Our culture
Stream has a casual social culture, our team is diverse and we all have different backgrounds. Our Amsterdam team is very focused: you will see us heads down coding or drawing complex charts on whiteboards, until we pop up to have a chat or play merciless games of ping pong.
Our talented developers are highly technical and collaborative, which makes Stream a great place to learn and improve your skills. When it comes to software engineering our culture is oriented towards ownership and quality: our goal is to deliver stable software.
If you are interested in becoming a part of what we do, apply now!
We are looking for a Golang developer who helps us develop an MVP for a nice Infrastructure as Code project. The MVP consists of a command-line application and a REST API for managing AWS cloud infrastructure in Golang. The project is running only for a few weeks, so you'll have the opportunity to contribute a cool project right from the start!
tl;dr
Develop a Golang command-line application and a REST API
Strong focus on internal and external software quality
Ambitious project context in the AWS cloud (Infrastructure as Code, High Availability, a high degree of automation)
For 10 to 16 hours per week
We speak English and German
AWS cloud / Infrastructure as Code / Part-time / Freelance
Project Background
We are developing the prototype of an innovative product for managing cloud infrastructure. It is all about running web applications in the AWS cloud in an easy-to-use, reliable, and automated way. Our users should be able to create and maintain the resources that they need without any external help. Behind the curtains, there is a framework that manages those resources in the AWS cloud with Terraform. This concept aligns with the Infrastructure-as-Code principle, which aims at providing documented and managed-like-source-code infrastructure definitions. We set a strong focus on economic factors, in that it should be viable to run both small and large applications and to scale those applications with high load and amount of users. The platform should be highly available and self-repairing – nobody should be on-call and responsible for fixing server deployments in the middle of the night. We have already validated a solution for creating and managing such an infrastructure, and we are in the process of bringing it to life.
The Task at Hand
The platform's user interface is a command-line application which talks to the REST API, which we also develop. We want to implement these tools in Golang, and engineering has just started. We have a strong focus on software quality: in the end, we want to have a well-designed, robust software architecture with clear responsibilities and interfaces. The product should be automatically testable and maintainable for an extended period. An important factor will be integrating several data sources to deliver the right information to the user at the right time. The challenge lies in the heterogeneity and complexity of the data sources (for example, Terraform and AWS). It is also important to us that the product is intuitively usable: it should transform hosting infrastructure from a bothersome task to something fun. To achieve this, we want to gather user feedback and act on it iteratively.
Your Qualifications
You should have considerable experience with Golang and see yourself on an intermediate-to-senior level. In particular, you should engage with topics such as software architecture, testing on unit/integration/end-to-end level, and picking the right frameworks and libraries. You are also excited about clear software architecture and clean, well-maintainable code. We really care about this! ;) If you've got experience with infrastructure tools such as Terraform, Docker, Kubernetes, or cloud platforms such as AWS or Azure – that's a plus, but we don't expect you to know everything. And you won't have to dive deep into all those topics (depending on your personal preferences, of course). There are more bonus points if you know how to integrate 3rd party CLI apps in a stable and reliable way.
The Scenario
You're living in Berlin, Potsdam, or somewhere nearby, and you have one to two days per week to spare. The project is sponsored by a company for digital products in Münster (Zweitag). However, there is no need to travel there because you work together with a team member who lives in Berlin. The current project is projected to take six months. If it all works out fine, we can see you being invited to work with us for longer. 🙂
#bestthingever
Want to hear more about this project over a nice cup of coffee? Write an email to Felix at felix.seidel@zweitag.de. 🚀
Software Engineer, Security Team Lob San Francisco, United States $115,000 to $165,000 a year
October 2019
4 Applicants This Week
More Than 6 Months Old
This job posting is no longer available
Job Description
Lob is building a suite of APIs to simplify and automate enterprise workflows. Our most popular product is our print and mail API that enables companies to send physical mail as effortlessly as sending emails. This API helps individuals and enterprise customers programmatically send physical mail at scale. Our second API focuses on address verification. It is officially CASS-certified by the USPS. Our long-term goal is to provide the building blocks for developers to automate the offline world through APIs (lob.com/blog/vision-mission) . We’re looking for great problem-solvers to help us figure out how.
As a member of our security team, you’ll protect the data of hundreds of millions of mail recipients, ensure new products and designs are architected safe by default, build monitoring and detection systems, work collaboratively with developers to educate them about security and squash vulnerabilities, and help us achieve our compliance and regulatory goals.
We take a systemic approach to security, and strive to ensure we provide low friction high-impact wins across everything we do. The role includes significant autonomy towards defining problem spaces and a mandate to build viable tools which are both internally- and externally-facing. A significant part of this job is meant to attract a multidisciplinary engineer. This is a great opportunity for someone who wants to have a large sense of ownership, grow extraordinarily in their career, and develop cross-functional technical & soft skills, not just related to application/infrastructure security but securing all aspects of a fast-moving hypergrowth startup.
Our engineering team values agility, collaboration, and autonomy (lob.com/blog/engineering-agility-collaboration-autonomy) . We’re building a team of not just strong problem-solvers, but great collaborators—engineers who are excited to teach and learn from each other, share decisions and information freely, and work together on new problems that no other companies have solved before. Come join the best people in the business.
As a Senior Security Engineer, you’ll...
Be a security subject matter expert and respond to any internal and external customer security engineering questions/requests
Support and advise software engineering teams in the design of secure software. Coach and mentor other engineers
Develop, implement, and communicate vulnerability mitigation strategies to development teams
Threat model and pentest our internal and external applications
Design, evangelize and implement security processes, technical controls, and architecture design patterns to enhance Lob's ability to prevent, detect, and analyze malicious activity
Participate in defining security-related end user features in the Lob product
Recommend and deploy tooling to manage security in the deployment pipeline as well as production systems
Balance security risk with business goals and agility
For this role, we’re looking for...
Proven interpersonal skills: Ability to explain complex technical issues to both technical and non-technical audiences. Collaborative approach to mentoring software engineers on the development of secure code
Broad exposure to various security disciplines (at least 2 of application security, infrastructure security, incident response, account security, and risk & compliance), and understanding of the core principles behind security concepts
Strong knowledge of web architecture, cloud and application architectures, and related security principles
Systematic problem solving approach, coupled with a strong sense of ownership and drive
Experience securing AWS based environments a plus, including security of different AWS Services, design of VPC architectures, best practices for IAM configuration and security of data within and across AWS accounts
Experience with NodeJS and Golang a plus: having opinionated approaches to preventing and detecting vulnerable code patterns at scale
Experience with Kubernetes and service mesh deployments a plus: CVE scanning, RBAC, mTLS, network security policies, pod security contexts, etc.
About Lob
Lob was built by technical co-founders with a vision to make the world programmable. We offer two flagship APIs (print & mail and address verification) that enable companies to send postal mail as effortlessly as sending emails. Lob is venture-backed by the most reputable investors in tech, and we are rapidly growing our team to shape the future of our company and meet the demands of a quickly growing customer base and dynamic product offerings.
We give our employees a lot of responsibility and ownership of their work. You will have fun at work while engaging in challenging projects with the best and brightest.
Perks
Health benefits for you and your dependent(s)
Healthcare and Dependent Care Flexible Spending Accounts
Wellness program (includes monthly stipend or free Barry’s Bootcamp classes!)
Paid parental leave
Free lunch, dinner, and snacks
401K
Dog-friendly office
Ground floor opportunity as an early member of the Lob team; you’ll directly shape the direction of our company
Our Commitment to Diversity
Lob is an equal opportunity employer and values diversity (lob.com/blog/power-diversity-starts-data) of backgrounds and perspectives (lob.com/blog/a-commitment-to-diversity) to cultivate an environment of understanding to have greater impact on our business and customers. We encourage under-represented groups to apply and do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.
Forbes 30 Under 30 - Enterprise Technology 2017
#61 on Y Combinator's Top Companies List 2018
#26 2018 Fastest-Growing Private Companies, The Business Journals
We're looking for a talented multi-faceted full stack developer who also has a good baseline in systems, networking, security.
This person is going to continue/takeover/assist with the CTO's development effort and will report to the CTO.
At a high level, here's what you'll be doing:
Coding API Integrations with a bunch of systems
Expanding our own API
Development of multiple web front-end interfaces - both customer facing & internal facing
About you:
You dig Node.js, but let's be real, if you can really code, the details shouldn't matter that much
You understand [at least relational] databases and you have a good balanced idea of when to abstract
You love at least one front-end library (Angular, React, et al)
You code with a 'REST API first' mentality and front-end comes after
You see JSON blocks as art
You consider security implications while you're coding
Ideally, you'll also:
Have a systems/network background to understand the DevOps side and implications of what you're doing
Have comfort with cloud infrastructure orchestration & automation
Have some depth in cryptography and/or security
Have a passion for data and have played with D3.js or similar
Can code mobile apps for Android and iOS
You should have the following experience & education:
Just kidding. We're not going to throw out arbitrary lengths of time and list external validations and pretend that matters.
If you can do this stuff and are interested in what we're building, reach out.
Obligatory keyword skills list:
Languages: JavaScript, Go/Golang, PHP, Python
Frontend/Backend: Node.js, Agular, React, Vue, HTML, CSS
SOA: Microservices, REST, RESTful
Data structures: JSON, XML
SQL & NoSQL: MySQL, PostgreSQL, MongoDB
Cryptography: PKI, SSL, TLS, and much more
Systems & Network: Linux, nginx, apache, IP, IPv4, TCP, HTTP, SSL/TLS
Security: SIEM, Splunk, Suricata, Bro, DNSBL
Cloud: AWS, EC2, RDS, CloudFormation
Authentication/AAA: JWT, Radius, LDAP, SAML, et al
SaaS Integrations
Development: OO, GIT, Agile, CICD
Backend Engineer Artivatic.ai Career Bengaluru, India ₹700,000 to ₹1,000,000 a year
November 2018
2 Applicants This Week
More Than 6 Months Old
This job posting is no longer available
Job Description
Skills :
Building server-side logic that powers our APIs, in effect deploying machine learning models in production system that can scale to billions of API calls
Scaling and performance tuning of database to handle billions of API calls and thousands of concurrent requests
Collaborate with data science team to build effective solutions for data collection, pre-processing and integrating machine learning into the workflow
Collaborate, provide technical guidance, and engage in design and code review for other team members.
Excellent Scala, cassandara, architect, api, software, python, Java programming and software design skills, including debugging, performance analysis and test design
Proficiency with at least one Scala, GoLang, Python micro frameworks like Flask, Tornado, Play, Spring etc. with experience in building REST APIs
Experience or understanding in building web crawlers, data fetching bots etc.
Experience with design and optimisation of Neo4j cassandra, NoSQL databases, PostGreSQL, Redis, Elastic Search
Familiarity with one of the cloud service providers, AWS or Google Compute Engine
Computer Science degree with 4+ years of backend programming experience
Compensation: 7-10 LPA + ESOP [Based on performance]
Experience : 3 Years+
Location : Sony World Signal, Koramangala 4th Block, Bangalore
Software Engineer (API) Beeswax New York City, United States $110,000 to $160,000 a year
October 2018
1 Applicants This Week
More Than 6 Months Old
This job posting is no longer available
Job Description
Beeswax, named one of Business Insider’s “hottest pre-IPO ad tech startups of 2016,” is looking for a Software Engineer to build and maintain the REST APIs that our customers rely on. Our goal is to offer the most extensible set of APIs in the world of online advertising. You can read more about our APIs at www.beeswax.com/docs.
Our current REST API runs on AWS ECS and is built using PHP, MySQL, and nginx. Our APIs serve internal clients in our stack written in Python, Java, and C++ in addition to external customers.
Beeswax is an engineering-led company that places high value in building great software. Because advertising is extremely high scale (millions of transactions per second) and our team is still small, Beeswax engineers are involved with difficult scale problems all the time.
This position reports to the CTO, a long-time senior engineer from Google who was a key technical lead in the process of scaling Gmail.
Responsibilities include:
Building new features for customers and internal users
Maintaining existing features and fixing issues as they arise
Architecting solutions to complex systems tasks
Testing, managing and releasing high-quality code
Working with other engineers to produce a highly-reliable and easy to use advertising API
Requirements:
B.S. in Computer Science
Strong familiarity with backend REST APIs and relational databases, SQL knowledge and PHP experience is a plus
A desire to be deeply involved in product definition. Our engineers are expected to contribute to the direction of their projects.
Working knowledge of Javascript, HTML, and CSS
Ability and desire to build great software
Backend Engineer Meshify Austin, TX, United States $80,000 to $130,000 a year
October 2018
2 Applicants This Week
More Than 6 Months Old
Job Description
Onsite in Austin, TX 78704
Must be authorized to work in the U.S.
Description
Do you enjoy building processing pipelines for massive amounts of data? Adaptable time-series databases? Machine learning? Streaming analytics pipelines? We’ve got a lot of opportunities for you to leave your mark.
A Backend Developer at Meshify will have the opportunity to work on a myriad of projects and applications. We have just finished 1.0 of our platform rewrite, entitled Carbon. It is a full scale redesign and rewrite of our legacy platform. We migrated from an old .NET API server to Go, from MySQL to ScyllaDB (Cassandra) for time-series data, and from MySQL to Postgres for relational data. It includes a query and analytics engine, highly customizable rules and notifications engine, and even custom javascript code triggered by messages in the data pipeline (Lambda Engine). Future projects will include a Hardware Identity Server providing identity and security to our hardware, simple integration with big data tooling, improved GPS rule processing, integration with common ticketing systems like Pager Duty, and more.
First Few Months
Build out data pipeline ingest tooling from other transports
Assist in building out and scaling the event history API
Integration with data warehousing and analytics tooling
Key Responsibilities
Develop backend services in Go
Work with PostgreSQL and Scylla (Cassandra) to view and model data effectively
Work with Git, Drone, Docker, and Rancher to continuously build, test, and deploy software applications
Work to build maintainable, scalable, and deployable solutions
Skills & Requirements
4 year degree in CS or other Engineering discipline combined with relevant experience
At least 5 years professional development experience with a demonstrable proficiency Go
Proficiency with relational databases (MySQL, PostgreSQL, etc.)
Very strong problem solving skills
Open to new concepts, ideas, and languages
Able read, write, and speak fluent English
Ability to work in a team environment at a fast-paced, small company
Ability to analyze, troubleshoot and debug software in a modern microservices environment
On a rotation basis, be available for on-call support for production outside of office hours
Verisart is currently upgrading is is seeking a hands on Senior Golang Engineer who can work with our technical stack as we migrate from a tightly coupled backend and front end to using React/Redux.
The successful candidate will have strong web app and RESTfull API experience and will be able to support our in-house development team and can start immediately. Knowledge of micro services is also helpful.
The role would involve setting up the API framework as well as any authentication (OAuth2.0) and validation middleware. Routes would then need to be implemented and integrated. Role would also involve supporting any extra code requirements of the development team inside the scope of the API project.
The work will be carried out as part of a small team, based in London (Mayfair). Competitive rates offered, as well as flexible working hours although the position is full time and on site and the successful candidate must be available at least 4 days per week at our office in London.
In general Verisart seeks engineers interested in applying cryptography at real world problems. Our problem lies within the art market as we address the problem of proving provenance for artworks and building evidence based certificates of authenticity. We recognize that cryptography is not a magic bullet. We want to use it intelligently to provide evidence where possible for people to interpret, like the web of trust. We’re looking for people who understand how to apply cryptography to problems. While understanding the mathematical backgrounds to cryptography is great, it’s not essential if you understand how the cryptographic primitives like hashing and message signing work together to solve real problems. We value passion and hard work when tackling challenges and above all else although an interest in arts and collectibles is helpful.
Skills & requirements
Requirements
Computer science degree or similar (preferred but not necessary). Git. High level experience such as C++, Golang, Rust, Java, Python. Bitcoin experience is an asset.
Our stack
Golang, Postgres, Javascript, Heroku, Python,
About the company
Verisart is building the most trusted way to certify and verify artworks and collectibles using distributed ledger technology. We are a rapidly growing team of applied cryptographers, software engineers and designers with offices in Los Angeles and London. Robert Norton, former CEO of Sedition Art and Saatchi Art, leads the company. Peter Todd, core developer for the Bitcoin blockchain protocol and Dr. Ahmed Elgammal, Professor in Computer Science at The Art & AI Lab at Rutgers University are Board Advisors.
Massdriver is an internal development platform that enables engineering teams to self-serve secure, production-ready infrastructure and services in their own cloud. We are looking for an engineer to lead our Golang team to build out core features and guide the future of our platform.
Platform engineering at Massdriver is different. We dogfood our product and the platform components you design are the components we expose to our customers to design their platform engineering environments. Your work is the product.
This role will own and design platform engineering components and their APIs including our provisioning engine, command-line tools, and our cloud query API. You will have the opportunity to work and contribute to a number of open source tools as well as design custom tooling.
Required experience:
Minimum of 3+ years of Golang development experience at startup / mid-sized companies
Effective communication skills, a positive attitude, and ability to give and receive constructive feedback through mentoring, pair programming sessions, and code reviews
Professional experience developing large, scalable backend applications
Strong understanding of system architecture and design; with consideration given to security, performance, and scalability
Owned the technical design of major features or projects and can articulate the reasoning behind trade-offs made in your designs
Experience with IaC tools like Terraform or Pulumi
Nice to have:
Experience with Kubernetes
Experience with open telemetry
Experience as an open-source maintainer
Responsibilities:
Developing in a high-security micro-services oriented environment
Event-driven systems development
Follow software development best practices to create maintainable and extensible software solutions
Open Source DevTools & CLI development
Work in an agile manner with transparency and fluid communication within the engineering team and across other teams in the company
Benefits:
Generous equity in an early-stage startup
Generous paid vacation with a required summer and spring break
100% covered health, medical, and dental insurance
401k w/ 4% matching
Half-day Fridays
Conference stipend
Flexibility. Massdriver is a remote-first company, and we want our employees to work the way that makes them the most productive.
Ownership. Our engineers have felt the pain of being prevented from trying new things by the overhead of DevOps. We empower our engineers to solve customer problems and add value.
Growth. As we build this core team of engineers, we are looking for the future leaders of our company that will help guide us as we scale.
About the interview
15-minute call w/ Cory (CEO)
30-minute discussion about the role and your experience w/ Dave (CTO)
1-hour coding session on an open source issue of your choosing. w/ Chris (COO)
Our coding interview is very different.
Our goal is for you to be the expert on the call and to see what it's like to work with you as the new employee:
Pick an issue on an open-source project in Golang that you think will take an hour or more.
Don't overthink picking the issue!
Feel free to familiarize yourself with the codebase, the issue history, the test suite - whatever you think you need to be the 'expert' during the interview. Don't share the issue with us.
At interview time, you are in the driver seat, you are the expert. Our goal is to see what it's like to work with you on our first day.
Please don't actually start work on the issue until the interview.
About Massdriver
Massdriver is changing the way software engineers provision, secure, and observe cloud infrastructure.
We aim to provide all of the benefits of infrastructure-as-code including parity, reproducibility, and auditability in a simple to use diagramming platform. No more fighting with HCL or spending hours reading cloud-specific API documentation. Now you can manage your infrastructure the same way you design it, at the drawing board.
Software Engineer Bankable Barcelona / Remote (Spain, Portugal, France) €45,000 to €65,000 a year
July 2023
5 Applicants This Week
More Than 6 Months Old
Job Description
About Bankable
We are on a mission to enable our customers to become ‘Bankable’ by providing a one-stop solution for embedded finance. We work with the world’s leading FinTech\'s, corporates and financial institutions, providing them an API based platform which allows them to access financial products and embed them in their own offerings. At Bankable, we’re building a truly global solution for payments, cards and working capital which our customers access through a single API integration platform. Partnering with Bankable allows customers to bypass the legacy banking system to build new, profitable revenue streams from financial services, whilst relying on the highest levels of security, resiliency, and scalability. Our people are hungry for success, humble in collaborating, and are experts in their field.
Your Responsibilities
* Collaborate to build and scale our core systems and Marketplace.
* Create and enhance software based on a tech stack composed by Go, gRPC, PostgreSQL, AWS EKS (Amazon Kubernetes managed service), GitHub Actions, Git, Docker and a bunch of other cool stuff.
* Help to keep up an Agile environment, focused on delivery to meet our customers expectations.
* Design simple solutions to complex business problems, ensuring availability and performance.
* Improve the Software Development Life Cycle (SDLC), with automation at heart, boosting continuous integration and continuous delivery (CI/CD) practices and tools. Our Ideal Candidate
* Passionate on web technologies and deeply knowledgeable in APIs creation.
* A programmer with experience in software engineering professional practices like design patterns, SOLID principles, clean code and Domain Driven Design (DDD).
* Keen to tackle the challenges of distributed architectures based on microservices.
* Research and experiment with new technologies that are the best fit for the problem you are trying to solve. We are a startup, we aim to use the right tool to do the job.
* Excited to have the opportunity to improve your code quality and problem solving skills on a daily basis.
Perks & Benefits
We are fully remote and flexible, in consequence we are providing the fluidity and tools, including home office equipment, to help you do the job. We have offices in London and in Barcelona,however we are a distributed organisation which keeps a mixed and elastic approach in terms of working on site and remotely. Besides a competitive annual salary and part remote work, other perks are:
* A MacBook Pro.
* Private health insurance for the nuclear household paid by the company.
* Home office equipment budget.
* Training budget.
* One (1) additional holiday on your birthday.
* Tax relief plan for meals, kindergarten and public transportation (Retribución flexible).