Cutshort logo
Tracxn logo
Senior Software Engineer (Backend Developer)
Senior Software Engineer (Backend Developer)
Tracxn's logo

Senior Software Engineer (Backend Developer)

Tracxn Technologies's profile picture
Posted by Tracxn Technologies
1 - 7 yrs
₹5L - ₹30L / yr (ESOP available)
Bengaluru (Bangalore)
Skills
skill iconSpring Boot
skill iconJava
skill iconMongoDB
Data Structures
skill iconRedis
MySQL
Algorithms

Total Experience: 1+ years

Mode Of Hire: Permanent

Required Skills Set (Mandatory): Object Oriented Programming, data structures, algorithms, software design, and database systems.

Desired Skills (Good if you have): Springboot, ElasticSearch, MongoDB, MySQL, Redis, Crawling/ Web Scraping, Programming languages(Java, Python, C, C++)


Job Responsibilities

  • Collaborate with Managers and other Engineers to help define, scope, and implement high-quality features that solve critical user needs.
  • Break down requirements into architecture and deliver code, while keeping operational issues in mind.
  • The ability to own end-to-end responsibility right from the requirement to release.
  • Write clear documentation so that other engineers can jump in and get things done.
  • Actively participate in design and code reviews.
  • Help take Tracxn to the next level as a world-class engineering team


Job Requirements

  • ​​Experience with building backend services. Strong algorithm and CS skills.
  • Experience designing and implementing large‐scale distributed systems.
  • Experience with multiple programming languages (Java, Python) and data stores (MongoDB, MySQL, Redis, etc)
  • Proven ability to work in a fast-paced, agile, and in ownership, and results-oriented culture.
  • Strong problem-solving and analytical skills.


Culture

  • Work with performance-oriented teams driven by ownership and passion.
  • Learn to design systems for high accuracy, efficiency, and scalability.
  • No strict deadlines focus on delivering quality work.
  • Meritocracy-driven, candid culture. No politics.
  • Very high visibility regarding which startups and markets are exciting globally.


About Tracxn

Tracxn (Tracxn.com) is a Bangalore-based product company providing a research and deal sourcing platform for Venture Capital, Private Equity, Corp Dev, and professionals working around the startup ecosystem. We are a team of 800+ working professionals serving customers across the globe. Our clients include Funds like Andreessen Horowitz, Matrix Partners, GGV Capital, and Large Corporations such as Citi, Embraer & Ferrero.


Founders

  • Neha Singh (ex-Sequoia, BCG | MBA - Stanford GSB)
  • Abhishek Goyal (ex-Accel Partners, Amazon | BTech - IIT Kanpur)


About Technology Team

Tracxn's Technology team is 50+ members strong and growing. The technology team is subdivided into multiple smaller teams, each of which owns one or more services/components of the technology platform. Ours is a young team of motivated engineers with a minimal management structure where almost everyone is actively involved in technical development and design activities. We have a team-centric culture where the ownership and responsibility of a feature or module lie with a team as compared to an individual.

We work on an array of technologies, including but not limited to Spring, Elastic Stack, Kafka, Mongo, MySQL, Redis, ReactJS, Next.js, Node, AWS Lambda, Ansible, etc. 

We value ownership, continuous learning, consistency, and discipline as a team.

Read more
Users love Cutshort
Read about what our users have to say about finding their next opportunity on Cutshort.
Shubham Vishwakarma's profile image

Shubham Vishwakarma

Full Stack Developer - Averlon
I had an amazing experience. It was a delight getting interviewed via Cutshort. The entire end to end process was amazing. I would like to mention Reshika, she was just amazing wrt guiding me through the process. Thank you team.
Companies hiring on Cutshort
companies logos

About Tracxn

Founded :
2013
Type :
Product
Size :
20-100
Stage :
Raised funding

About

We at Tracxn are building one of the world’s largest platform for tracking Startups, Private Companies and Emerging Innovative Sectors. Tracxn is powered by artificial intelligence and big data technology that scans through the company datapoints and incorporates the relevant information in its platform offering. A 100+ strong Sector-focussed Analyst team further enhances the relevance of the platform data. We work with over 5000 subscribers in over 30 countries across North America, Europe, Asia Pacific, Latin America & Middle East. Our clientele includes Venture Capitalists, Private Equity Funds, M&A and Innovation teams of Fortune 500 companies and Investment Banks who use Tracxn data for daily deal sourcing, identifying M&A targets, deal diligence and tracking emerging themes across Industries & Markets. Tracxn platform is also being used by the various Governments, Accelerators, Incubators and Universities for tracking innovative companies and sectors. Tracxn was founded in 2013 by, Neha Singh and Abhishek Goyal, ex-Venture Capitalists from Accel Partners & Sequoia Capital. With its unique offering, Tracxn has featured in Forbes Top 100 Global Analytics Startup List (2015), and Fortune 40 under 40 (2016, 2017). Tracxn was also ranked as the Coolest Startup of the year by Busine0ss Today (2017), Our investors include SAIF Partners, Accel Partners, Sequoia Capital along with marquee angel investors including Ratan Tata, Nandan Nilekani, Sachin Bansal, Binny Bansal amongst others. Whether you are researching companies in emerging sectors like Blockchain, IoT or AI or you want to do a targeted discovery in niche segments like Plant based Meat Products or AI based Payment Fraud Detection, we have got you covered.
Read more

Connect with the team

Profile picture
Sachin Kamkar

Company social profiles

linkedintwitterfacebook

Similar jobs

GoComet
Shahaban MK
Posted by Shahaban MK
Bengaluru (Bangalore)
5 - 8 yrs
₹20L - ₹35L / yr
skill iconNodeJS (Node.js)
skill iconMongoDB
Mongoose
skill iconExpress
Systems design
+2 more

As a Tech Lead I (Backend) at Gocomet, you will be pivotal in driving backend development initiatives. Your role will involve leading the design and implementation of robust backend systems, ensuring high performance and responsiveness to requests from the front-end.

You will work closely with other team leads and departments to define and meet the technical and business requirements.


Roles and Responsibilities:


  • Backend vision & ownership: Architect and implement scalable and efficient backend solutions, contributing significantly to the design and overall architecture, keeping in mind a long term vision of the product & scale.
  • Optimize Performance: Focus on optimizing the application for maximum speed and scalability, including database optimization, effective caching strategies, improving code health, code design & refactoring, etc.
  • Technical Innovation: Suggest innovative solutions wherever required for problems related to new product requirements & scale related issues. Stay abreast of emerging backend technologies and trends, advocating and leading the adoption of technologies that will give a competitive edge to our products.
  • Mentor and Guide: Provide mentorship and guidance to backend development team members, ensuring the dissemination of best practices and efficient use of technology stacks. Take ownership of hiring & building a high quality backend team.
  • Quality Assurance: Uphold high standards in code quality, including rigorous code review processes, and ensure adherence to industry best practices in backend development.



Experience & Skills:


  • Backend Expertise: 4-6 years of experience in backend development, with a deep understanding of server-side logic, architecture design & handling scalability issues.
  • Cloud & DevOps exposure: Experience with Cloud (GCP or AWS) with a deep understanding of different services, resources utilisations, CI/CD pipelines, Observability tools (Sentry, New Relic / Datadog, etc.) and an ability to debug infra related issues.
  • Strong Technical Skills: Strong expertise in a Backend development framework (preferably Ruby on Rails but not mandatory), SQL & NoSQL database technologies.

(like Postgresql and MongoDB), Caching (Redis), Async job frameworks (like Sidekiq), etc.

  • Problem-Solving Ability: Strong analytical and problem-solving skills, research ability with a proven track record of delivering high-quality software solutions.
  • Leadership Skills: Demonstrated experience in mentoring backend development teams and taking complete tech ownership.
  • Communication Skills: Excellent verbal and written communication skills, with the ability to clearly articulate technical challenges and solutions to both technical and non-technical team members.
  • Continuous Learning: A commitment to continuous learning and staying current with the latest backend development trends and technologies.



Benefits:


  • Collaborative and innovative work environment.
  • Dynamic & high-performing team that thrives in a fast-paced environment.
  • Opportunities for professional growth and development.
  • Cutting-edge technology stack and tools.
  • Make a significant impact on our products and the user experience.
  • Join a team of passionate, creative, and driven individuals.
  • 5 Days working.
  • Flexible Working Hours.
  • Experience good work culture with regular fun activities.
  • Health medical insurance coverage with Family, etc.


Job Location: Bangalore




Why Gocomet?


GoComet is a dynamic SaaS start-up that provides AI-powered transportation visibility solutions to revolutionize the trillion-dollar logistics sector. At GoComet, we are revolutionizing the logistics sector one day at a time, and every team member is committed to making it a reality.


We're seeking individuals who embody our core values, character, and attitude. While we recognize that skills can be developed with the right mindset and learnability, we prioritize those who share our philosophy. Our recruitment processes reflect this belief.


Look no further if you're looking for a diverse, talented, and vibrant workplace that recognizes and rewards hard work. We're ambitious, fast-paced, and unafraid to experiment, fail, learn, and ultimately succeed. This is us! Join our team if you share our culture and values.


We're an equal-opportunity employer. We welcome qualified applicants from all races, colors, religions, sexes, nationalities, sexual orientations, gender identities, and abilities.


We are hiring for multiple positions.

For any queries, feel free to write to Know more about us:


https://www.youtube.com/watch?v=YxGt9ZCkaA8 https://youtu.be/jv9cAsgenSE https://www.youtube.com/watch?v=Er0dHqxaaXc https://youtu.be/0ql1eCVhiWA

Read more
AVATAR SOFT CONSULTANCY SERVICES PRIVATE LIMITED
Santhalakshmi S. R
Posted by Santhalakshmi S. R
Remote, Chennai
2 - 6 yrs
₹4L - ₹7L / yr
skill iconJava
J2EE
Struts
Spring
Hibernate (Java)
+1 more

AvatarSoft is a team of seasoned "Temenos T24 Certified" IT Professionals with over 20 years' combined experience in Financial Transformation. We are a growing company across 3 continents and 4 countries deployed in an offshore and onsite model. Our professionals have worked in major Software firms, Consultancy firms, Financial Institutions, and Credit Unions across the globe.

Avatarsoft is a rapidly evolving banking software consulting firm that renders leading edge to its clients . Avatarsoft brings profound expertise, resolute culture and provides strategical T24 / Transact transformation solutions through cutting edge services. We embrace our journey, by striving to remain the trusted and ethical business partner that delivers IT consulting to implement Temenos T24 Transact / Infinity, banking transformation projects and provides business value to our clients and etc,.

Our Locations: Canada, U.S.A, Netherlands, Mexico, India(Chennai), UAE.

This is for our Chennai Office , however work from home can be considered during pandemic or lockdowns .

  • Java / JavaScript Developer Job Description (Minimum 2 years Experience in Java)
  • Good in Core Java, Multithreading, J2EE, web services (REST, SOAP).
  • In-depth knowledge on Java Script and object-oriented technique .
  • Should be able to work independently
  • Familiar on Front-end technologies like AngularJS or Node JS or Spring boot is a real Plus
Read more
YuktaMedia
at YuktaMedia
1 video
3 recruiters
Aditya Bhelande
Posted by Aditya Bhelande
Pune
1 - 2 yrs
₹2L - ₹3L / yr
MySQL
PL/SQL
Databases
Description: YuktaMedia is seeking an experienced MySQL developer to join our team in Pune. This position will collaborate with developers in the design and operations of the database applications. Responsibilities & Requirements: - Should have experience of 1-2 years - Hands on experience of working on stored procedures, functions, cursors etc. - Hands on experience of working on creating indexes, triggers, SQL sub-queries etc. - Client Communication. - Timely delivery of tasks. - Able to Prioritize and plan task and report status to manager - Project Documentation Skills: - Ability to work with team or independently - Excellent written and verbal communication - Strong Problem Solving Skills - Self motivated. YuktaMedia's Yukta One platform enables end-to-end automation of Digital Ad and Revenue Operations across Display, Video and Mobile assets. YuktaMedia’s team is composed of talent from across the globe, cultures and industries inherently forming a very strong foundation of communication based on TRUST. Team YuktaMedia believes in mutual Trust, Hard work and Team work. In short One for All and All for One! If you think you're right fit for this position then join us!
Read more
City Labs
at City Labs
2 candid answers
Gulrez Siddiqui
Posted by Gulrez Siddiqui
Remote only
5 - 6 yrs
₹5L - ₹6L / yr
skill iconNodeJS (Node.js)
skill iconMongoDB
Mongoose
skill iconExpress

 Senior backend developers

Minimum 5 years of experience 

Backend skills: MongoDB, Node.js 

Remote work available

(We prefer individual developers over agencies or IT providers)

Read more
company logo
Agency job
via Devrabbit It Solutions Pvt LTD by chandana jonnalagadda
Hyderabad
1 - 3 yrs
₹1L - ₹8L / yr
skill iconNodeJS (Node.js)
skill iconMongoDB
skill iconExpress
Required Technical Skillset - Node with ExpressJS Developer

Overall 2+ years of experience in IT industry
Mid level experience in NodeJS and ExpressJS
Design and Develop JavaScript application
Mid level experience in JavaScript frontend usage
Experience in HTML and CSS
Experience in GIT, JIRA is necessary
Experience in usage of postman
Good communication skills are necessary as we interact with client daily
Experience in Unit testing for NodeJS using Jest Framework will be useful
Read more
DBOI Global Services
at DBOI Global Services
3 recruiters
Sandeep Giri
Posted by Sandeep Giri
Hyderabad, Bengaluru (Bangalore)
5 - 15 yrs
₹22L - ₹35L / yr
skill iconJava
skill iconC#
skill icon.NET
skill iconPython
skill iconNodeJS (Node.js)
+8 more

The database market is massive (the IDC estimates it to be $119B+ by 2025!) and MongoDB is at the head of its disruption. The MongoDB community is transforming industries and empowering developers to build amazing apps that people use every day. We are the leading modern data platform and the first database provider to IPO in over 20 years. Join our team and be at the forefront of innovation and creativity.

MongoDB is expanding our global team of consulting engineers to further our ongoing plans for worldwide growth!


MongoDB Professional Services works with customers of all shapes and sizes in all verticals, from tier-1 banks to small web startups, on a variety of interesting use cases from e-commerce platforms to trading systems to social media applications. Solve interesting problems, gain incredible cross-stack experience, work with the best and brightest people in the business, network with industry leaders, and see new places - all in a day’s work!


MongoDB consulting exists to support the development of our customers’ vision, accelerate customers’ time to value, and drive a multitude of customer adoption scenarios - from building new solutions to modernising legacy applications or migrating to the cloud. Our consulting solutions ensure that organisations get the best out of MongoDB.


Be one of the recognised experts in this rapidly growing field in a high-growth software company successfully challenging the status quo of the database industry. You will have abundant opportunities to meaningfully impact the growth of our business in your region.

Candidate Profile

We’re looking for a highly technical individual, with strong problem-solving and communication skills, and is comfortable working closely with customers. 

Work Location

This role will be based remotely in Hyderabad / Bangalore and requires a frequent travel for short trips to customer site during the working week once the restriction are lifted. 

Our ideal candidate will have

  • Excellent analytical, diagnostic skills, and problem-solving skills
  • High motivation for a role that combines deep technical and customer-management dimensions
  • Confidence speaking and presenting in a collaborative customer setting
  • 5+ years of software development/consulting/support experience, preferably in a number of distinct industries/verticals
  • Familiarity with enterprise-scale software architectures, application development methodologies, and software deployment and operations
  • Competence in at least one of the following languages (in no particular order): Java, C#, Python, Node.js (JavaScript), Ruby, Go.
  • Experience with databases such as MongoDB, Oracle, MS SQL Server, PostgreSQL
  • Familiarity with Linux diagnostics and tuning; Windows tuning knowledge is a plus
  • Should have the strong capability with, minimally, both English and any local language - as necessary

Position Expectations

As a core member of the MongoDB Professional Services team, you will

  • Contribute to customer implementations at any or all phases of the application lifecycle: portfolio assessment, application planning, and design, deployment architectures, development and build, integration and release configuration, system testing, production operations, application optimisation, and best practices adoption
  • Deliver customer classroom-based training to architect, developer, and operations roles
  • Work as part of a wider delivery team comprising fellow consulting engineers, project managers, and account teams
  • Cultivate your individual MongoDB reputation as a trusted advisor to guide MongoDB and our customers into the future
  • Partner with Product and Engineering teams to influence the direction of the MongoDB product roadmap

Success Measures

As a Senior Consulting Engineer, you will be successful in this role when you can execute the following

  • Become a field expert in “everything MongoDB”
  • Communicate complex technical proposals simply and convincingly to a wide range of audiences
  • Gain reputation as a trusted advisor with your clients, large and small
  • Ensure your client’s success with their MongoDB endeavours
  • Maintain required level of billable utilisation
  • Influence MongoDB product development by contributing experience from the field
  • Successfully communicate the product roadmap to external clients
  • Constantly work on improving yourself, our products and our team

Life at MongoDB

 Our India office culture

  • 300+ people, with teams in Sales, Engineering, HR, Finance, IT & Marketing
  • Regular group outings and opportunities to get to know your colleagues
  • Employee affinity groups

 Our Benefits

  • Competitive salary and equity
  • Comprehensive Health cover, dental cover, travel insurance & Life Insurance.
  • 26 weeks Maternity & 20 Paternity leave to spend time with new arrivals

To drive the personal growth and business impact of our employees, we’re committed to developing a supportive and enriching culture for everyone. From employee affinity groups, to fertility assistance and a generous parental leave policy, we value our employees’ wellbeing and want to support them along every step of their professional and personal journeys.https://www.mongodb.com/blog/channel/culture"> Learn more about what it’s like to work at MongoDB, and help us make an impact on the world!

MongoDB is committed to providing any necessary accommodations for individuals with disabilities within our application and interview process. To request an accommodation due to a disability, please inform your recruiter.


MongoDB is an equal opportunities employer.

Read more
Bridgei2i Analytics Solutions
Venniza Glades
Posted by Venniza Glades
Bengaluru (Bangalore)
2 - 6 yrs
₹5L - ₹15L / yr
skill iconJava
Hibernate (Java)
J2EE
Struts
Spring
+1 more

As Java Developer at BRIDGEi2i, you will participate in design, development and implementation of architectural deliverables of custom projects and products of BRIDGEi2i in Business Intelligence Applications. The role includes working closely with lead, testers, customers, project managers, designers. 

You are expected to develop prototypes of the system design and work with lead, frontend developers, testers and project managers as appropriate throughout development cycle. You may work on multiple projects and products. You will contribute as a fully seasoned/proficient technical resource; providing tech knowledge and capabilities as team member and individual contributor.

Requirements:

  • 4+ years of experience in core Java/J2EE
  • Strong knowledge of one of the web application framework such as Spring 4, Hibernate
  • Good knowledge of relation database, SQL and ORM 
  • Possess good knowledge of object-oriented design and data structure
  • Knowledge of web services (Restful) is preferred
  • Knowledge of UI frameworks is an added advantage (AngularJS 2.0/4.0, Java script, HTML, CSS, JQuery, React JS) 
  • Curiosity and attention to detail 
  • Adaptable to changing technology and restrictions, design challenges, deadlines, and project requirements 

Experience

  • Should have 4+ Years of experience in Software Development.
Read more
WyngCommerce
at WyngCommerce
3 recruiters
Ankit Jain
Posted by Ankit Jain
Bengaluru (Bangalore)
3 - 7 yrs
₹12L - ₹24L / yr
skill iconDjango
skill iconPython
Algorithms
Data Structures
skill iconMachine Learning (ML)
+1 more
WyngCommerce is building state of the art AI software for the new age Consumer Brands & Retailers which helps them to provide best of the class customer experiences. Our solutions help the brands in identifying the right opportunities in terms of Inventory Placement, Assortment & Overall Planning of their merchandise. Backed by a clutch of prominent angel investors & having some of the category leaders in Indian retail industry as early adopters, we are looking to hire for our engineering team. The engineering team at WyngCommerce is building highly robust & scalable data system & infrastructure which can handle Millions of concurrent computations, seamlessly connect to multitude of Enterprise Data Sources, implementing libraries of state of the art optimisations & other algorithms using various ML & DL techniques. Your Role & Responsibilities - > Contribute in all stages of development right from system architecture, low level design, database design to setting up deployment infra & processes. > Own a set of Modules / Components in the Data Processing & Core Compute Engine 
> Work in tandem with the Data Science team to implement & optimise performance of various algorithms > Come up with innovative & fast MVPs to solve business problems by working closely with the Founders > Driving Design, Architecture & Infrastructure level decisions & setting up best practices for the same to deliver best in class performance & data security 
> Mentoring the engineering team and actively participate in hiring 
 Desired Skills & Experiences - > Proficiency with Python, Django, Postgres SQL with 3+ years of work experience in building scalable products > Excellent understanding of Queues & Messaging, Asynchronous Tasks, Data Pipelines, Database performances, Query Optimisation > Good understanding of AWS/Azure components and have used them in their day to day activities > Product thinking, Building robust reusable components from integrations, ETL to Optimisation & ML libraries & workbenches > Ability to weigh trade offs of speed vs perfection & take calls to use open source / other software component to fast-track the go to market > Basic understanding of Maths behind statistical methods & ML techniques will be a plus point
Read more
WyngCommerce
at WyngCommerce
3 recruiters
Sharad Lahoti
Posted by Sharad Lahoti
Bengaluru (Bangalore)
3 - 7 yrs
₹8L - ₹18L / yr
skill iconPython
skill iconDjango
Data Structures
Algorithms
RESTful APIs
WyngCommerce is building state of the art AI software for the new age Consumer Brands & Retailers which helps them to provide best of the class customer experiences. Our solutions help the brands in identifying the right opportunities in terms of Inventory Placement, Assortment & Overall Planning of their merchandise. Backed by a clutch of prominent angel investors & having some of the category leaders in Indian retail industry as early adopters, we are looking to hire for our engineering team. The engineering team at WyngCommerce is building one the most robust & scalable data systems & infrastructure which can handle Millions of concurrent computations, seamlessly connect to multitude of Enterprise Data Sources, implementing libraries of state of the art optimisations & other algorithms using various ML & DL techniques. Your Role & Responsibilities - > Own a set of Modules / Components in the Data Processing & Core Compute Engine > Work in tandem with the Data Science team to implement & optimise performance of various algorithms > Come up with innovative & fast MVPs to solve business problems by working closely with the Founders > Driving Design, Architecture & Infrastructure level decisions & setting up best practices for the same to deliver best in class performance & data security > Lead & Mentor SDEs to setup best practices Desired Skills & Experiences - > Proficiency with Python, Redis, Postgres SQL with 2+ years of work experience in Product Orgs > Excellent understanding of Data ETL, Data Warehouses, Queues & Messaging Pipelines, Database performances & Hands on experience of Big Data Systems (Spark, Kafka, Hive etc) > Product thinking, Building robust reusable components from integrations, ETL to Optimisation & ML libraries & workbenches > Ability to weigh trade offs of speed vs perfection & take calls to use open source / other software component to fast-track the go to market > Experience in developing Real World ML/Optimisation/advanced analytical systems > Basic understanding of Maths behind statistical methods & ML techniques will be a plus point
Read more
Jiva adventures
at Jiva adventures
2 recruiters
Bharat Chinhara
Posted by Bharat Chinhara
Bengaluru (Bangalore)
2 - 5 yrs
₹5L - ₹15L / yr
skill iconJava
RESTful APIs
Algorithms
Data Structures
MySQL
+1 more
Job Description: • Must Have Product Development Experience • Must have API Development Experience • Hands on experience in Java, Data Structure and Algorithm . Knowledge in DB design • Experience with microservice architecture desirable • Experience with AWS services desirable Job Location Koramangala, Near to JNC Road.
Read more
Why apply to jobs via Cutshort
people_solving_puzzle
Personalized job matches
Stop wasting time. Get matched with jobs that meet your skills, aspirations and preferences.
people_verifying_people
Verified hiring teams
See actual hiring teams, find common social connections or connect with them directly.
ai_chip
Move faster with AI
We use AI to get you faster responses, recommendations and unmatched user experience.
Did not find a job you were looking for?
icon
Search for relevant jobs from 10000+ companies such as Google, Amazon & Uber actively hiring on Cutshort.
companies logo
companies logo
companies logo
companies logo
companies logo
Get to hear about interesting companies hiring right now
Company logo
Company logo
Company logo
Company logo
Company logo
Linkedin iconFollow Cutshort
Users love Cutshort
Read about what our users have to say about finding their next opportunity on Cutshort.
Shubham Vishwakarma's profile image

Shubham Vishwakarma

Full Stack Developer - Averlon
I had an amazing experience. It was a delight getting interviewed via Cutshort. The entire end to end process was amazing. I would like to mention Reshika, she was just amazing wrt guiding me through the process. Thank you team.
Companies hiring on Cutshort
companies logos