Java Developer( LeverX International )

Описание

B ogdan
B as
|
bogdan2228839@gmail.com
1 .5
y e ars
o f
d eve lo pin g
e xp erie nce ,
i n c.
m ic ro se rv ic e s
a nd
f e atu re
i m ple m enta tio n.
E XPER IE N CE
P aste bin
|
J a va
D eve lo per
A
s yste m
f o r
s to rin g
b lo cks
o f
t e xt
a nd
c o nve nie nt
s h arin g
o f
t h ese
b lo cks
b y
l in ks
●
F eatu re s
○
B lo cks
o f
t e xt
a nd
l in ks
a re
d eactiv a te d
a fte r
s o m e
t im e
a nd
r e m ove d
f r o m
t h e
s yste m .
T he
u se r
c a n
s p ecif y
e xa ctly
w hen
t h is
h appens
○
A
u se r
c a n
s e nd
a
l in k
t o
t h is
b lo ck
t o
a noth er
u se r,
w ho
w ill
s e e
t h e
s a m e
b lo ck
o f
t e xt
w hen
t h ey
c lic k
o n
i t
○
T he
u se r
c a n
c re ate
a
b lo ck
o f
t e xt
a nd
u plo ad
i t
t o
t h e
s yste m
●
T he
d eve lo pm ent
p ro ce ss
○
D eve lo ped
t h e
m ain
f u nctio ns
o f
t h e
a pplic a tio n
○
O ptim iz e d
p erfo rm ance
o f
t h e
r e so urc e
r e ce iv in g
a lg orit h m
b y
˜ 9 8
(
f r o m
˜ 5
t o
˜ 0 .1
s
)
○


R eso lv e d
1 3+
p ro ductio n
i s su es
o f
c rit ic a l
p rio rit y
i n
a
s yste m
w here
e ve ry
c o m ponent
i s
c rit ic a l
○
I m pro ve d
u niq ueness
o f
r e ve rte d
l in ks,
r e su lt in g
i n
a
p osit iv e
u se r
e xp erie nce
○
A dded
a n
o ff lin e
h ash in g
g enera tio n
m ode,
i n cre asin g
p erfo rm ance
b y
a ppro xim ate ly
8 0%
( fr o m
~ 1.5
t o
~ 0.3 )
○
O ptim iz e d
h ash
g enera tio n
a lg orit h m
p erfo rm ance
b y
a ppro xim ate ly
˜ 9 9
( fr o m
˜ 1 .3
t o
˜ 0 .0 1
(
t h e
m in im um
v a lu e
) ).
●
S ta ck:
J a va
1 7,
S prin g
B oot,
N gin x
,
R edis ,
P ostg re S Q L,
W asa bi
C lo ud
S to ra ge
(
≈
A W S
A m azo n
S 3
(
A W S
S D K
)
) ,
H ib ern ate
E m erg ency
N otif ic a tio n
S yste m
|
J a va
D eve lo per
A
s yste m
f o r
q uic kly
s e ndin g
i m porta nt
m essa ges
t o
a
g ro up
o f
u se rs
a t
o nce
●
F eatu re s
○
S endin g
n otif ic a tio ns
t o
a ny
d evic e
o f
t h e
r e cip ie nt
a uto m atic a lly
w hen
s e ndin g
n otif ic a tio ns
t o
t h e
w hole
g ro up
o f
r e cip ie nts
○
C re atin g
n otif ic a tio n
t e m pla te s
a nd
c o nfig urin g
t h e
r e quir e d
r e ce iv e rs
○
L oadin g
u se rs
w it h
c o nta cts
v ia
. c sv
f ile
●
T he
d eve lo pm ent
p ro ce ss
○
M ig ra te d
i n fr a str u ctu re
(
c o de
b ase
)
f r o m
m onolit h
t o
m ic ro se rv ic e
a rc h it e ctu re
○
O ptim iz e d
t im e
t o
s e nd
n otif ic a tio ns
t o
m any
c o nta cts
b y
˜ 5 0
(
f r o m
˜ 2 3
t o
˜ 1 1
s
)
○
A dded
a
g uara nte e
o f
r e ce iv in g
m essa ges
t o
s p ecif ie d
u se rs
○
A dapte d
t h e
a pplic a tio n
f o r
h ig h
l o ads
(
a bilit y
t o
h andle
1 M
p eople
) ,
w hic h
g ave
a
p erfo rm ance
b oost
o f
˜ 9 0
(
f r o m
˜ 1 00k
t o
1 M
)
○
A dded
m essa ge
r e se nd
f u nctio n
( in
c a se
o f
s e rv e r
c ra sh ),
w hic h
h as
a
s ig nif ic a nt
i m pact
o n
u se r
e xp erie nce
○
R educin g
t h e
d ela y
t im e
o f
t h e
r e quest
a cce pta nce
f u nctio n
○
A ddin g
l o ad
b ala ncin g
t o
o ptim iz e
t h e
a pplic a tio n
f o r
˜ 7 0
i n
o ve ra ll
a pplic a tio n
p erfo rm ance
○
I m pro ve d
l o adin g
t im es
a nd
o ve ra ll
p erfo rm ance
o f
t h e
m ain
p anel
○
R eductio n
o f
f ile
u plo ad
d ela y
t im e
b y
~ 60%
( fr o m
˜ 3
t o
˜ 1
s )
●
S ta ck:
J a va
1 7,
S prin g
B oot,
K afk a ,
G oogle
S M TP,
N gin x,
R edis ,
P ostg re S Q L,
H ib ern ate
W eb
C ra w le r
|
J a va
D eve lo per
A
s yste m
f o r
i n dexin g
a ll
w eb
p ages
o n
t h e
I n te rn et
●
F eatu re s
○
M ake s
a
q uic k
s e arc h
o f
p ages
b y
k e yw оrds
○
P ars e s
a ll
p ages,
p ulls
l in ks
t o
o th er
p ages
a nd
r e peats
t h e
p ro ce ss
○
P ulls
k e yw оrds
f r o m
a ll
w eb
p ages
a nd
a sso cia te s
p ages
w it h
t h em
i n
t h e
d ata base
●
T he
d eve lo pm ent
p ro ce ss
○
O ptim iz e d
t h e
o ve ra ll
k e yw оrds e arc h
b y
˜ 8 8
(
f r o m
˜ 2 .7
t o
˜ 0 .3
s
)
○
H ig hly
r e lia ble
s e rv ic e s
a nd
s e arc h
a lg orit h m
d eve lo ped
○
D eve lo ped
a n
a dd
d ata base
w it h
k e yw оrda nd
u rl
m appin g
f o r
p ote ntia l
s it e s
○
A dded
a
l in k-b y-lin k
w eb
s it e
w ork a ro und
g uara nte e,
a ctu ally
u sin g
a n
a rc h it e ctu ra lly
c yclic
g ra ph
○
A dded
p age
d eduplic a tio n
s e rv ic e ,
w hic h
g ave
a
s ig nif ic a nt
i n cre ase
i n
o ptim is a tio n
i n
t h e
o ve ra ll
p erfo rm ance
o f
t h e
a pplic a tio n
●
S ta ck:
J a va
1 7,
S prin g
B oot,
M ongoD B,
P ostg re S Q L,
H ib ern ate